WO2015166756A1 - 油圧ショベル - Google Patents
油圧ショベル Download PDFInfo
- Publication number
- WO2015166756A1 WO2015166756A1 PCT/JP2015/060027 JP2015060027W WO2015166756A1 WO 2015166756 A1 WO2015166756 A1 WO 2015166756A1 JP 2015060027 W JP2015060027 W JP 2015060027W WO 2015166756 A1 WO2015166756 A1 WO 2015166756A1
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- WIPO (PCT)
- Prior art keywords
- cover
- hydraulic excavator
- pair
- width direction
- electrical component
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Classifications
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- 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
- E02F9/20—Drives; Control devices
- E02F9/2004—Control mechanisms, e.g. control levers
-
- 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
- E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/32—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
- E02F3/325—Backhoes of the miniature type
-
- 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
- E02F9/16—Cabins, platforms, or the like, for drivers
- E02F9/163—Structures to protect drivers, e.g. cabins, doors for cabins; Falling object protection structure [FOPS]; Roll over protection structure [ROPS]
-
- 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
- E02F9/26—Indicating devices
Definitions
- the present invention relates to a hydraulic excavator.
- the canopy is generally composed of left and right columns that are erected on the upper portion of the counterweight and a roof that is installed above the column, behind the operator seat.
- Such electric parts are mounted in a concentrated manner between the left and right support columns at the rear of the seat due to restrictions on the mounting space in the vehicle body.
- a cover that covers the electrical components from above is installed between the columns. Concave portions are provided at both the left and right ends of the cover so as to avoid the base end portions of the support columns. By passing the base end portions of the support columns through these recesses, the entire installation surface of the electrical component parts is covered in a wide range in addition to the electrical component parts. It is possible.
- the recessed part provided in the cover is conventionally provided in the shape open
- moving the cover in the front-rear direction in order to avoid interference with the electrical components, it must be lifted up to a predetermined height and then moved in the front-rear direction, and the operation is complicated in two stages. There is a problem that this cannot be solved sufficiently.
- An object of the present invention is to provide a hydraulic excavator that can easily attach and detach a cover that covers an electrical component.
- the hydraulic excavator of the present invention is a canopy-type hydraulic excavator having a pair of struts erected apart in the vehicle width direction and a roof erected on the upper ends of the pair of struts. And an electrical component installed on the vehicle body behind the backrest of the operator seat and a cover that covers the electrical component from above, and at both ends of the cover in the vehicle width direction, outwardly in the vehicle width direction. A concave portion that is open toward the surface is provided.
- the recesses are provided at both ends of the cover so as to open outward in the vehicle width direction, when removing the cover, the recess on one end side of the cover is locked to one of the columns. From this state, the one end side is rotated with the vehicle body front-rear direction as the rotation axis, so that the other end side of the cover is lifted and slanted, and the other end side is twisted from the other column so that the entire cover is twisted from this state. Remove the front side or rear side. And when attaching a cover, the above reverse operation
- the operator lifts the cover instead of the conventional two-stage operation of lifting the entire cover up to a height at which it does not interfere with the electrical components and then moving it forward and backward.
- the twisting operation may be performed continuously, and attachment / detachment work while avoiding interference with the electrical parts can be facilitated.
- the cover is attached to the vehicle body at a position lower than the upper part of the electrical component.
- an inner dimension between a joint portion of one of the pair of struts to the vehicle body and a joint portion of the other strut to the roof corresponds to the one strut of the cover. It is preferable that it is larger than the length dimension between the innermost end of the recessed part and the outermost end of the cover corresponding to the other strut.
- the pair of support columns are inclined so as to approach each other as they go upward, and by lifting the cover, the lower surface of the cover is at least at a height position higher than the upper part of the electrical component.
- the inner dimension along the vehicle width direction between the pair of support columns is preferably larger than the length dimension between the innermost ends of the recesses of the cover.
- the cover has an inclined portion corresponding to the maximum reclining amount of the backrest of the operator seat on the front surface.
- the recesses provided at both ends of the cover have different indentations.
- FIG. 1 is a side view showing a hydraulic excavator according to an embodiment of the present invention.
- the front view seen from the II direction of FIG. 1 which shows the state which inclined the cover.
- the front view seen from the III direction of FIG. 1 which shows the state which lifted the cover to the height position where a lower surface becomes higher than the upper part of an electrical component.
- the top view of a cover The perspective view around the installation surface of an electrical component.
- FIG. 5 is a cross-sectional plan view of the electrical component installation surface when viewed from the VI-VI direction in FIG. 1.
- the front / rear / left / right / up / down directions refer to the front / rear / left / right / up / down directions when the operator seated on the operator seat 5 of the excavator 1 faces the front in the state shown in FIG. Is the same as the vehicle width direction of the hydraulic excavator 1.
- a hydraulic excavator 1 is a vehicle classified as a small excavator as shown in FIG. 1, and includes a lower traveling body 2, an upper swing body 3 provided on the lower traveling body 2, and earth and sand. And a work machine 4 for excavation and the like.
- the upper swing body 3 is provided so as to be rotatable with respect to the lower traveling body 2 by a swing hydraulic motor (not shown).
- the lower side of the upper swing body 3 includes a revo frame 30 that is a frame of the upper swing body 3, and a work machine 4 is provided at the front end of the revo frame 30.
- the work machine 4 is attached to the revo frame 30 so that it can swing up and down, an arm 42 attached to the tip of the boom 41 so as to swing up and down, and attached to the tip of the arm 42 so as to swing up and down.
- Bucket 43 The boom 41, the arm 42, and the bucket 43 are connected to the tip ends of the cylinder rods of the boom cylinder 41A, the arm cylinder 42A, and the bucket cylinder 43A, which are hydraulic cylinders, and swing by extending and retracting each cylinder rod. Operate.
- An engine room 31 for storing a diesel engine (not shown) is provided in the latter half of the revo frame 30, and a counterweight 32 is attached to the rear end of the revo frame 30.
- An operator seat 5 is provided above the engine room 31.
- the operator seat 5 has a reclining function and abuts against a seat stopper 13 (see FIGS. 5 and 6) provided behind the operator seat 5 when the maximum reclining amount is reached.
- the hydraulic excavator 1 has a canopy specification, and a roof 7 is provided above the operator seat 5 and supported by a pair of support columns 6L and 6R that are erected on the upper swing body 3 in the vehicle width direction.
- 2 and 3 are front views of the canopy viewed from the II and III directions in FIG.
- pillar 6L, 6R inclines in the direction which adjoins mutually as it goes upwards.
- an electrical component 8 is installed between the pair of columns 6 ⁇ / b> L and 6 ⁇ / b> R (that is, behind the operator seat 5). And a cover 10 for protecting from dust.
- the electrical component 8 includes a processing device that processes information from various sensors installed in the main part of the vehicle body, a communication terminal that communicates with the management center, and the like.
- FIG. 5 shows a state in which the operator seat 5 is removed in order to make the electrical component 8 and the cover 10 visible.
- the cover 10 has four bolts 9 (see FIG. 6) on the floor behind the back of the operator seat 5, which is a joint portion of the pair of support posts 6L and 6R to the upper swing body 3 at a position lower than the upper part of the electrical component 8. Is attached by.
- the cover 10 is formed in a box shape that covers the entire upper surface of the electrical component 8 and has an open lower surface. As shown in FIGS. 4 and 6, the front edge of the cover 10 extends along the vehicle width direction, and the rear edge is curved along the rear edge of the upper swing body 3. As shown in FIGS.
- the cover 10 is formed in a stepped shape with both ends in the vehicle width direction being smaller in the vertical direction than the center, and the operator 10 is formed on the front surface.
- An inclined portion 10A corresponding to the maximum reclining amount of the backrest of the seat 5 is formed.
- the inclined portion 10 ⁇ / b> A By forming the inclined portion 10 ⁇ / b> A, a large reclining amount can be secured in the operator seat 5. Further, if the back of the operator seat 5 is made upright or inclined forward, a work space for removing the cover 10 from the vehicle body can be secured.
- first and second recesses 11 and 12 opened outward in the vehicle width direction are provided. More specifically, the first recess 11 is provided on the right column 6R side, and the second recess 12 is provided on the left column 6L side.
- the first recess 11 is a U-shaped recess formed so as to avoid the proximal end portion of the right column 6R, and the second recess 12 is formed so as to avoid the proximal end portion of the left column 6L. It is a rounded depression.
- the amount of depression in the vehicle width direction of the first recess 11 is formed larger than the amount of depression in the second recess 12.
- the length dimension between the innermost end of the second recess 12 of the cover 10 and the outermost right end of the cover 10 is M2.
- This length dimension M2 is smaller than the inner dimension N2 (see FIG. 2) between the joint portion P of the left column 6L with respect to the upper swing body 3 and the joint portion Q with respect to the roof 7 of the right column 6R. (M2 ⁇ N2).
- the length dimension between the innermost ends of the first recess 11 and the second recess 12 of the cover 10 is M1.
- the length dimension M1 is smaller than the inner dimension N1 (see FIG. 3) along the vehicle width direction between the pair of support posts 6L and 6R at the point where the height from the lower end is H2 (M1 ⁇ N1). ).
- the second recess 12 While the second recess 12 is locked to the left column 6L, the second recess 12 side is rotated about the vehicle longitudinal direction as the rotation axis, and the first recess 11 side of the cover 10 is further lifted and inclined ( 2 and 5). Then, the first recess 11 is detached from the right column 6R inward in the vehicle width direction.
- the first recess 11 is detached from the right column 6R inward in the vehicle width direction.
- the removal work is performed. It can be done easily.
- the length dimension M2 between the innermost end of the second recess 12 of the cover 10 and the outermost right end of the cover 10 is smaller than the inner dimension N2 between the PQs described above (M2). ⁇ N2) Therefore, before the end of the cover 10 on the first recess 11 side interferes with the roof 7, the first recess 11 can be removed from the right column 6R inward in the vehicle width direction.
- the cover 10 When the first recess 11 is disengaged from the right column 6R, the cover 10 is twisted so that the first recess 11 side moves backward with the second recess 12 as the center, and then the second recess 12 is moved from the right column 6R. When it is separated and removed, the cover 10 is removed. When the cover 10 is attached, the procedure is reversed from the procedure described above.
- the electrical component 8 When the electrical component 8 is long in the vertical direction, the electrical component 8 may interfere with the operation of twisting the cover 10 so that the first recess 11 side moves backward with the second recess 12 as the center.
- the cover 10 is lifted to a height position H2 where the lower surface of the cover 10 is at least higher than the upper part of the electrical component 8 at the height position H1.
- the above-described removal work may be performed.
- the length dimension M1 between the innermost ends of the first recess 11 and the second recess 12 of the cover 10 is smaller than the inner dimension N1 along the vehicle width direction between the pair of columns 6L and 6R. (M1 ⁇ N1).
- the cover 10 when the cover 10 is lifted to the height position H2, the cover 10 is not sandwiched between the pair of support posts 6L and 6R, and the cover 10 can be reliably lifted to the height position H2. Since the cover 10 is lifted to a height position H2 where the lower surface is higher than the upper part of the electrical component 8, the cover 10 can be removed without being obstructed by the electrical component 8.
- the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
- the pair of support columns 6L and 6R are inclined so as to approach each other as they go upward, but in the present invention, the pair of support columns 6L and 6R may extend in parallel.
- the amount of depression of the first recess 11 of the cover 10 is larger than the amount of depression of the second recess 12, but the amount of depression of the first recess 11 and the second recess 12 is equal. Good. However, it is preferable that the end portion of the cover 10 does not protrude from the upper swing body 3.
- the present invention can be used for a smaller hydraulic excavator of a small rear turning type, for example.
- SYMBOLS 1 Hydraulic excavator, 10 ... Cover, 11 ... 1st recessed part, 12 ... 2nd recessed part, 6L, 6R ... Support
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Component Parts Of Construction Machinery (AREA)
Abstract
Description
しかしながら、従来では、カバーを前後方向に移動させる際、電装部品との干渉を避けるために、一旦所定高さまで持ち上げ、その後に前後方向に移動させなければならず、動作が2段階となって繁雑さを十分に解消できないという問題がある。
このように、カバーの着脱にあたり作業者は、カバー全体を電装部品と干渉しない高さまで一旦上方に持ち上げ、そこから前後方向に移動させるといった2段階の従来のような動作ではなく、カバーの回動およびひねりの動作を連続的に行えばよく、電装部品との干渉を避けながらの着脱作業を容易にできる。
以下の説明において、前後・左右・上下方向とは、図1に示す状態において、油圧ショベル1のオペレータシート5に着座したオペレータが正面を向いた状態における前後・左右・上下方向を言い、左右方向は油圧ショベル1の車幅方向と同意である。
本実施形態に係る油圧ショベル1は、図1に示すように小型ショベルに分類される車両であり、下部走行体2と、下部走行体2の上に設けられた上部旋回体3と、土砂の掘削等を行う作業機4とを備えている。上部旋回体3は、下部走行体2に対して、図示しない旋回油圧モータにより旋回自在に設けられている。上部旋回体3の下部側は、上部旋回体3のフレームであるレボフレーム30で構成され、レボフレーム30の前端には、作業機4が設けられている。
カバー10は、電装部品8の上部よりも低い位置で一対の支柱6L,6Rの上部旋回体3に対する接合部分であるオペレータシート5の背もたれの後方のフロアに4本のボルト9(図6参照)によって取り付けられている。
カバー10は、電装部品8の上面全体を覆い下面が開口した箱状に形成されている。図4、図6に示すように、カバー10は、前縁が車幅方向に沿って延びており、後縁が上部旋回体3の後縁に沿って湾曲している。また、図2、図3、図5に示すように、カバー10は、車幅方向の両端部が中央部と比較して上下方向の寸法が小さい段付き形状に形成されており、前面にオペレータシート5の背もたれの最大リクライニング量に対応した傾斜部10Aが形成されている。傾斜部10Aが形成されていることによって、オペレータシート5に大きなリクライニング量を確保することができる。また、オペレータシート5の背もたれを直立または前方へ傾斜させれば、カバー10を車体から取り外す際の作業スペースを確保することができる。
また、図4に示すように、カバー10の第1凹部11と第2凹部12の最内端間の長さ寸法はM1になっている。この長さ寸法M1は、下端からの高さがH2の地点における一対の支柱6L,6R間の車幅方向に沿った内間寸法N1(図3参照)よりも小さくなっている(M1<N1)。
カバー10を取り外す方法について説明する。
初めに、カバー10を上部旋回体3に対して固定する4本のボルト9を抜いてから、
前述したように、カバー10の第2凹部12の最内端とカバー10の右方の最外端との間の長さ寸法M2は、前述したPQ間の内間寸法N2よりも小さい(M2<N2)ので、カバー10の第1凹部11側の端部がルーフ7に干渉する前に、第1凹部11を右方の支柱6Rから車幅方向の内方に外すことができる。
カバー10を取り付けるときには、上述の手順とは逆の手順で行う。
例えば、前記実施形態では、一対の支柱6L,6Rは、上方に向かうに従って互いに近接する向きで傾斜していたが、本発明では、一対の支柱6L,6Rが平行に延びていてもよい。
Claims (6)
- 車幅方向に離間して立設された一対の支柱と、前記一対の支柱の上端に架設されたルーフとを有するキャノピ仕様の油圧ショベルにおいて、
前記一対の支柱間、かつオペレータシートの背もたれの後方下側にて車体に設置された電装部品と、
前記電装部品を上方から覆うカバーとを備え、
前記カバーの車幅方向の両端には、当該車幅方向の外方に向かって開放した凹部が設けられている
ことを特徴とする油圧ショベル。 - 請求項1に記載の油圧ショベルにおいて、
前記カバーは、前記電装部品の上部よりも低い位置で前記車体に取り付けられる
ことを特徴とする油圧ショベル。 - 請求項1または請求項2に記載の油圧ショベルにおいて、
前記一対の支柱のうち一方の支柱の前記車体に対する接合部分と他方の支柱の前記ルーフに対する接合部分との間の内間寸法は、前記カバーの前記一方の支柱に対応した凹部の最内端と前記カバーの前記他方の支柱に対応した側の最外端との間の長さ寸法よりも大きい
ことを特徴とする油圧ショベル。 - 請求項1ないし請求項3のいずれか一項に記載の油圧ショベルにおいて、
前記一対の支柱は、上方に向かうに従って互いに近接する向きで傾斜し、
前記カバーを持ち上げることで当該カバーの下面が少なくとも前記電装部品の上部よりも高くなる高さ位置での、前記一対の支柱間の車幅方向に沿った内間寸法は、前記カバーの凹部同士の最内端間の長さ寸法よりも大きい
ことを特徴とする油圧ショベル。 - 請求項1ないし請求項4のいずれか一項に記載の油圧ショベルにおいて、
前記カバーは、前面に前記オペレータシートの背もたれの最大リクライニング量に対応した傾斜部が形成されている
ことを特徴とする油圧ショベル。 - 請求項1ないし請求項5のいずれか一項に記載の油圧ショベルにおいて、
前記カバーの両端に設けられた凹部のくぼみ量が異なっている
ことを特徴とする油圧ショベル。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2015/060027 WO2015166756A1 (ja) | 2015-03-30 | 2015-03-30 | 油圧ショベル |
DE112015000061.5T DE112015000061B4 (de) | 2015-03-30 | 2015-03-30 | Hydraulischer Löffelbagger |
JP2015557097A JP5973092B2 (ja) | 2015-03-30 | 2015-03-30 | 油圧ショベル |
CN201580000814.8A CN105283606A (zh) | 2015-03-30 | 2015-03-30 | 液压挖掘机 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2015/060027 WO2015166756A1 (ja) | 2015-03-30 | 2015-03-30 | 油圧ショベル |
Publications (1)
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WO2015166756A1 true WO2015166756A1 (ja) | 2015-11-05 |
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PCT/JP2015/060027 WO2015166756A1 (ja) | 2015-03-30 | 2015-03-30 | 油圧ショベル |
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JP (1) | JP5973092B2 (ja) |
CN (1) | CN105283606A (ja) |
DE (1) | DE112015000061B4 (ja) |
WO (1) | WO2015166756A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0666225U (ja) * | 1993-02-17 | 1994-09-16 | 関西電力株式会社 | ワイヤー走路のポイント装置 |
JP2000170209A (ja) * | 1998-12-04 | 2000-06-20 | Hitachi Constr Mach Co Ltd | 建設機械用キャブ |
JP2005133495A (ja) * | 2003-10-31 | 2005-05-26 | Hitachi Constr Mach Co Ltd | 建設機械 |
WO2008136149A1 (ja) * | 2007-04-19 | 2008-11-13 | Yanmar Co., Ltd. | 旋回作業車 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0624045U (ja) * | 1992-08-29 | 1994-03-29 | ハニックス工業株式会社 | 建設機械における操縦装置の組付装置 |
JPH11158924A (ja) * | 1997-11-27 | 1999-06-15 | Kubota Corp | バックホウの冷房装置 |
JP2003112579A (ja) * | 2001-08-01 | 2003-04-15 | Hitachi Constr Mach Co Ltd | 建設機械 |
JP2005350911A (ja) * | 2004-06-09 | 2005-12-22 | Komatsu Ltd | 作業車両 |
-
2015
- 2015-03-30 JP JP2015557097A patent/JP5973092B2/ja active Active
- 2015-03-30 DE DE112015000061.5T patent/DE112015000061B4/de active Active
- 2015-03-30 WO PCT/JP2015/060027 patent/WO2015166756A1/ja active Application Filing
- 2015-03-30 CN CN201580000814.8A patent/CN105283606A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0666225U (ja) * | 1993-02-17 | 1994-09-16 | 関西電力株式会社 | ワイヤー走路のポイント装置 |
JP2000170209A (ja) * | 1998-12-04 | 2000-06-20 | Hitachi Constr Mach Co Ltd | 建設機械用キャブ |
JP2005133495A (ja) * | 2003-10-31 | 2005-05-26 | Hitachi Constr Mach Co Ltd | 建設機械 |
WO2008136149A1 (ja) * | 2007-04-19 | 2008-11-13 | Yanmar Co., Ltd. | 旋回作業車 |
Also Published As
Publication number | Publication date |
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DE112015000061B4 (de) | 2017-01-26 |
CN105283606A (zh) | 2016-01-27 |
DE112015000061T5 (de) | 2016-02-18 |
JP5973092B2 (ja) | 2016-08-23 |
JPWO2015166756A1 (ja) | 2017-04-20 |
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