WO2015122547A1 - Hydraulic shovel - Google Patents
Hydraulic shovel Download PDFInfo
- Publication number
- WO2015122547A1 WO2015122547A1 PCT/JP2015/055989 JP2015055989W WO2015122547A1 WO 2015122547 A1 WO2015122547 A1 WO 2015122547A1 JP 2015055989 W JP2015055989 W JP 2015055989W WO 2015122547 A1 WO2015122547 A1 WO 2015122547A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- engine
- exhaust gas
- tilt
- protective cover
- filter device
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
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- 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
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0833—Improving access, e.g. for maintenance, steps for improving driver's access, handrails
-
- 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
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
-
- 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
- E02F9/166—Cabins, platforms, or the like, for drivers movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/20—Exhaust treating devices having provisions not otherwise provided for for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
- F01N2340/04—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses characterised by the arrangement of an exhaust pipe, manifold or apparatus in relation to vehicle frame or particular vehicle parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
Definitions
- the present invention relates to a hydraulic excavator.
- Patent Document 1 discloses a large hydraulic excavator in which an exhaust gas aftertreatment device including a diesel particulate filter, a selective reduction catalyst, and the like is accommodated in a recess of a counterweight.
- the type including a tilt-up floor on which a cab and a canopy on which an operator gets in is tilted up to the front side has the following problems. That is, in the tilted-up state, the rear end portion of the tilt-up floor covers the upper front side of the engine room, so that the entire upper area of the engine room is not open. For this reason, there exists a problem that maintainability is bad, for example, the wire of a crane and the exhaust-gas aftertreatment device suspended may contact the rear-end part of a tilt-up floor. For this reason, it is desirable to dispose the exhaust gas aftertreatment device above the hydraulic pump close to the side surface of the vehicle body so that it can be taken out toward the side of the vehicle body.
- the tilt-up floor enters the floor under the tilt-up state to inspect equipment, but the exhaust gas aftertreatment placed near the side of the vehicle body
- the device will be exposed and easy to touch when tilting up on the tilt-up floor. Therefore, the exhaust gas aftertreatment device, which is difficult to decrease once heated, is exposed by the side, so that other maintenance performed by tilting up must also be performed after the temperature of the exhaust gas aftertreatment device has decreased.
- the maintainability other than the exhaust gas aftertreatment device is good, such as the maintenance of the engine and the engine room, and the inside of the revolving frame of the lower traveling body.
- An object of the present invention is to provide a hydraulic excavator having good maintainability when the tilt-up floor is tilted up.
- the hydraulic excavator of the present invention purifies exhaust gas exhausted from a lower traveling body, an upper revolving body provided on the lower traveling body so as to be rotatable, an upper revolving body, a tilt-up floor, and an engine.
- a hydraulic excavator comprising an exhaust gas aftertreatment device that is provided on one side of the engine in the vehicle width direction of the engine to cool the engine and on the other side of the engine in the vehicle width direction of the engine
- the exhaust gas aftertreatment device is disposed above the hydraulic pump in the engine room so that its longitudinal direction is along the longitudinal direction of the vehicle body.
- the exposed portion of the exhaust gas aftertreatment device can be attached and detached while the tilt up floor is tilted up. Characterized in that it is covered by a cover.
- the exhaust gas aftertreatment device is covered with the protective cover, and even if the temperature of the exhaust gas aftertreatment device after the engine is stopped is not completely lowered, the protective cover is disposed after the exhaust gas. Since the heat from the processing apparatus is shut off, maintenance of the parts other than the exhaust gas after-treatment apparatus can be started, and the maintainability can be improved. Also, if the protective cover is removed at the time of tilting up, the exhaust gas aftertreatment device is exposed in the work space that appears by tilting up, and the exhaust gas aftertreatment device can be pulled out of this work space and taken out from the engine room, The exhaust gas aftertreatment device can be easily maintained.
- a support plate that supports the tilt-up floor is disposed above the exhaust gas aftertreatment device, and the protective cover is located in front of the support plate in the front-rear direction of the vehicle body. It is preferable that it is provided over the upper part of the revo frame which comprises the said lower traveling body from the front edge provided in this.
- the protective cover covers at least one of the front and the front of the exhaust gas aftertreatment device in the front-rear direction of the vehicle body.
- the protective cover covers one side of the exhaust gas aftertreatment device in the vehicle width direction.
- FIG. 1 is a side view showing a hydraulic excavator according to an embodiment of the present invention.
- the side view which expands and shows the principal part of the hydraulic excavator of the tilt-up state.
- the side view which shows the hydraulic excavator which concerns on the modification of this invention.
- the front / rear / left / right / up / down directions refer to the front / rear / left / right / up / down directions when the operator seated in the cab 5 of the excavator 1 faces the front in the state shown in FIG.
- the left-right direction is the same as the vehicle width direction of the excavator 1.
- a hydraulic excavator 1 is a vehicle classified as a small excavator, and includes a lower traveling body 2, an upper swing body 3 provided on the lower traveling body 2, a work machine that performs excavation of earth and sand, and the like. 4 and a cab 5 on which an operator gets into the excavator 1 to operate. Further, the excavator 1 has a tilt-up floor 6, and the entire cab 5 can be tilted up and down.
- FIG. 1 shows a tilt-down state
- FIG. 2 shows a tilt-up state
- the side cover 3 ⁇ / b> A that closes the left side surface of the upper swing body 3 is removed, and a protective cover 11 described later and a diesel particulate filter device as an exhaust gas aftertreatment device protected by the protective cover 11.
- Part of 10 hereinafter abbreviated as “filter device”.
- 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 22 attached to the tip of the boom 21 so that it can swing up and down, and attached to the tip of the arm 22 so that it can swing up and down.
- Bucket 23 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 22 attached to the tip
- the boom 21, the arm 22, and the bucket 23 are connected to the tip of the cylinder rod of the boom cylinder 21A, the arm cylinder 22A, and the bucket cylinder 23A, which are hydraulic cylinders, respectively, and swing by extending and retracting each cylinder rod. Operate.
- a cab 5 is provided on the left side of the revo frame 30.
- the tilt-up floor 6 that is the floor surface of the cab 5 is provided with a floor front half 6F provided with a travel lever and pedals, a work machine operation lever, a console box, a driving seat, and the like, and is one step higher than the floor front half 6F. It is formed in a step shape having a floor rear half 6R provided at a high position.
- the front end of the tilt-up floor 6 is connected to the revo frame 30 via the hinge mechanism 6A. Thereby, the tilt-up floor 6 can be tilted up and down about the axis of the hinge mechanism 6A.
- the tilt-up and tilt-down are performed manually with the assistance of a gas damper (not shown), but a hydraulic cylinder may be provided, and the tilt-up and tilt-down may be performed by the hydraulic cylinder.
- a gas damper not shown
- a hydraulic cylinder may be provided, and the tilt-up and tilt-down may be performed by the hydraulic cylinder.
- the rear half 6R of the tilt-up floor 6 covers most of the upper part of the engine room 31.
- the lower surface of the front half portion 6F of the tilt-up floor 6 is in contact with the upper surface of the revo frame 30, and when the tilt-up floor 6 is tilted up, FIG. As shown, the work space 3B appears in the area where the tilt-up floor 6 has existed.
- the worker enters the work space 3B.
- a support plate 33 extending in the left-right direction is provided above the rear side of the engine room 31.
- the support plate 33 is in contact with the lower surface of the rear half portion 6R of the tilt-up floor 6 when in the tilt-down state, and supports the tilt-up floor 6 from below.
- the support plate 33 is fixed to the upper part of the counterweight 32 on both sides in the vehicle width direction. Since the support plate 33 is formed of a thick steel plate that is large in size and can support the tilt-up floor 6, the support plate 33 is heavy. Therefore, a crane or the like is required to remove the support plate 33.
- FIG. 4 in order to make the inside of the engine room 31 easily visible, the support plate 33 is drawn with a one-dot chain line and is transmitted.
- a cooling unit 8 is provided on the right side of the engine 7, and a hydraulic pump 9 (see FIGS. 1 and 2) is provided on the left side of the engine 7.
- a filter device 10 is provided above the hydraulic pump 9. The filter device 10 is bolted to the upper surface of a flywheel case (not shown) of the engine 7 so that the longitudinal direction, that is, the exhaust gas flow direction is the front-rear direction.
- the cooling unit 8 includes a cooling fan 8A that draws outside air from the outside of the engine room 31, a radiator 8B that is cooled by the drawn outside air, and the like.
- the hydraulic pump 9 is driven by the engine 7 and supplies pressurized hydraulic fluid to the traveling hydraulic motor, the turning hydraulic motor, the hydraulic cylinders 21A, 22A, and 23A (see FIG. 1) of the work machine 4 and the like.
- a flange 10 ⁇ / b> A provided at the inlet of the filter device 10 is connected to the flange at the end of the exhaust pipe of the engine 7.
- a cylindrical filter (not shown) is accommodated in the cylindrical case of the filter device 10. This filter collects particulate matter in the exhaust gas that passes through it.
- the exhaust gas flowing into the filter device 10 from the flange 10 ⁇ / b> A passes through the filter to the rear side, and is then discharged to the outside through an exhaust port opened below the revo frame 30.
- the periphery of the filter device 10 is surrounded by other parts.
- the front, upper front side, and left side of the filter device 10 are covered with a protective cover 11 that prevents an operator from directly touching the filter device 10 during maintenance.
- a counterweight 32 is located behind the filter device 10, and the engine 7 is disposed on the right side of the filter device 10.
- the upper rear side of the filter device 10 is covered with a support plate 33.
- the protective cover 11 includes a protective plate 12, a protective pipe 13, and a heat insulating member 14 attached to the surface of the protective plate 12.
- the protective plate 12 is provided from the vicinity of the front edge of the support plate 33 to the vicinity of the upper surface of the revo frame 30, and is formed by bending a steel plate into a substantially L shape, and below the upper plate 12A.
- a rectangular lower plate 12B provided on the plate, and a plate support 12C into which the upper plate 12A and the lower plate 12B are fitted.
- An opening for reducing the weight is formed in the upper plate 12A and the lower plate 12B.
- the plate support portion 12 ⁇ / b> C is welded to the protective pipe 13.
- the protective pipe 13 includes a horizontal portion 13A, a vertical portion 13B, a plate-like portion 13C welded to the horizontal portion 13A and the vertical portion 13B, and a fixing plate 13D welded to the end of the horizontal portion 13A.
- the vertical portion 13B and the horizontal portion 13A are formed by bending a steel pipe into a substantially L shape.
- the plate-like portion 13C covers the left side of the filter device 10 and prevents an operator from unintentionally touching the filter device 10 when the side cover 3A is removed.
- the lower end of the vertical portion 13B is fixed by being inserted into an insertion pipe 30A provided on the revo frame 30.
- the fixing plate 13D is fixed to a bracket 33A provided on the support plate 33 by two bolts 15 (see FIG. 2).
- the heat insulating member 14 is formed of a glass fiber material having heat insulating properties and heat resistance, and is fixed to the protective plate 12 via a plurality of fixing fittings (not shown) penetrating the front and back surfaces.
- the protection cover 11 and the filter device 10 are removed after confirming that a sufficient time has elapsed after the excavator 1 has stopped and the temperature of the filter device 10 has decreased.
- the removal operation is performed in the order of the protective cover 11 and the filter device 10.
- the worker first tilts up the tilt-up floor 6 to cause the work space 3B to appear.
- the protective cover 11 is lifted slightly upward.
- the tip of the protective pipe 13 comes out of the insertion pipe 30A of the revo frame 30, and the protective cover 11 is removed.
- the removed protective cover 11 is horizontally moved obliquely forward as indicated by an arrow A in FIG. 4 and taken out from the engine room 31 to the side of the vehicle body.
- the protective cover 11 can be easily removed by simply removing the two bolts 15.
- the filter device 10 is then removed.
- An operator removes the electric wire, piping, etc. connected to the filter apparatus 10, and removes the bolt which fixes the leg part of the filter apparatus 10 to the upper surface of a flywheel case, and isolate
- the filter device 10 in order to extract the filter device 10, it was necessary to remove the strong and large support plate 33 covering the upper portion of the filter device 10, but in the hydraulic excavator 1 of the present embodiment, That work is not necessary.
- the filter device 10 when the filter device 10 is disconnected, the filter device 10 is horizontally moved obliquely forward as indicated by an arrow B in FIG. 4 and is extracted from the engine room 31 to the side of the vehicle body.
- the filter device 10 is small and lightweight. For this reason, the filter device 10 can be pulled out manually without using a crane or the like. Moreover, since the hydraulic excavator 1 which is a small excavator has a short length in the front-rear direction of the engine room 31, the horizontal movement distance necessary for extracting the filter device 10 is short. When the filter device 10 is attached, the procedure is the reverse of the procedure described above, and then the protective cover 11 is attached.
- the filter device 10 when the protective cover 11 is removed at the time of tilting up, the filter device 10 is exposed in the work space 3B that appears by tilting up, and the filter device 10 can be pulled out of the work space 3B and taken out from the engine room 31, The filter device 10 can be easily maintained.
- 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 excavator 1 has the cab 5 provided on the tilt-up floor 6, but the excavator 101 has the canopy 105 provided on the tilt-up floor 106 as shown in FIG. It may be. Since the other configuration of the excavator 101 is the same as that of the excavator 1 of the above-described embodiment, the description thereof is omitted.
- the protective cover 11 in the embodiment and the modification is one in which the protective plate 12 and the protective pipe 13 are integrally formed, but they may be formed separately.
- the excavators 1 and 101 include only the filter device 10 as the exhaust gas aftertreatment device.
- the excavator 1 and 101 may include an oxidation catalyst device and a selective catalyst reduction device instead of the filter device 10.
- the exhaust gas aftertreatment device may include only the oxidation catalyst device or only the selective catalyst reduction device.
- the protective cover 11 is configured to cover the front, upper, and left sides of the filter device 10.
- a configuration in which the protective cover 11 covers only the front and the upper side of the filter device 10 a configuration in which the protective cover 11 covers only the front or the upper side of the filter device 10, and the protective cover 11 on the left and right sides of the filter device 10.
- a configuration covering both of the above is also included in the present invention.
- the protective cover 11 is supported by the revo frame 30 and the support plate 33, what is necessary is just the support method with which removal of the protective cover 11 is easy, for example, the protective cover 11 May be supported by the engine 7 or the filter device 10.
- the present invention can be used for a smaller hydraulic excavator of a small rear turning type, for example.
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Abstract
Description
つまり、チルトアップされた状態では、チルトアップフロアの後端部がエンジンルームの前側上方を覆うので、エンジンルームの上方全域が開放されているわけではない。このため、クレーンのワイヤや吊り上げられた排気ガス後処理装置がチルトアップフロアの後端部に接触する可能性があるなど整備性が悪いという問題がある。このため、排気ガス後処理装置を車体側面に近い油圧ポンプの上方に配置し、車体側方に向けて取り出し可能に設けることが望まれる。 However, among the small hydraulic excavators, the type including a tilt-up floor on which a cab and a canopy on which an operator gets in is tilted up to the front side has the following problems.
That is, in the tilted-up state, the rear end portion of the tilt-up floor covers the upper front side of the engine room, so that the entire upper area of the engine room is not open. For this reason, there exists a problem that maintainability is bad, for example, the wire of a crane and the exhaust-gas aftertreatment device suspended may contact the rear-end part of a tilt-up floor. For this reason, it is desirable to dispose the exhaust gas aftertreatment device above the hydraulic pump close to the side surface of the vehicle body so that it can be taken out toward the side of the vehicle body.
また、チルトアップ時に保護カバーを取り外すと、チルトアップさせることで出現する作業空間に排気ガス後処理装置が露出し、この作業空間に排気ガス後処理装置を引き出してエンジンルームから取り出すことができ、排気ガス後処理装置を容易に整備できる。 According to the hydraulic excavator of the present invention, the exhaust gas aftertreatment device is covered with the protective cover, and even if the temperature of the exhaust gas aftertreatment device after the engine is stopped is not completely lowered, the protective cover is disposed after the exhaust gas. Since the heat from the processing apparatus is shut off, maintenance of the parts other than the exhaust gas after-treatment apparatus can be started, and the maintainability can be improved.
Also, if the protective cover is removed at the time of tilting up, the exhaust gas aftertreatment device is exposed in the work space that appears by tilting up, and the exhaust gas aftertreatment device can be pulled out of this work space and taken out from the engine room, The exhaust gas aftertreatment device can be easily maintained.
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のキャブ5内で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・上下方向を言う。また、左右方向は油圧ショベル1の車幅方向と同意である。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In the following description, the front / rear / left / right / up / down directions refer to the front / rear / left / right / up / down directions when the operator seated in the
本実施形態に係る油圧ショベル1は、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、オペレータが油圧ショベル1を操縦するために乗り込むキャブ5とを備えている。また、油圧ショベル1は、チルトアップフロア6を有し、キャブ5全体をチルトアップおよびチルトダウンさせることが可能である。 [Overview of hydraulic excavator]
A
エンジン7の排気管端部のフランジには、フィルタ装置10の入口に設けられたフランジ10Aが接続されている。フィルタ装置10の円筒状のケースの内部には、円柱状のフィルタ(図示略)が収容されている。このフィルタは、通過する排気ガス中の粒子状物質を捕集する。フランジ10Aからフィルタ装置10に流入した排気ガスは、フィルタを後方側に通過した後、レボフレーム30の下方に開口した排気口から外部に排出される。 [Description of filter device]
A
図5に示すように、保護カバー11は、保護プレート12と、保護パイプ13と、保護プレート12の表面に取り付けられた断熱部材14とから構成されている。
保護プレート12は、支持プレート33の前縁付近からレボフレーム30の上面付近に亘って設けられており、鋼鈑を略L字状に曲げて形成された上部プレート12Aと、上部プレート12Aの下方に設けられた矩形状の下部プレート12Bと、上部プレート12Aと下部プレート12Bとがはめ込まれたプレート支持部12Cとを有する。上部プレート12Aと下部プレート12Bとには、軽量化のための開口が形成されている。プレート支持部12Cは、保護パイプ13に溶接接合されている。 [Description of protective cover]
As shown in FIG. 5, the
The
垂直部13Bとおよび水平部13Aは、鋼管を曲げ加工等して略L字状に形成したものである。板状部13Cは、フィルタ装置10の左方を覆い、サイドカバー3Aが取り外されているときに作業者がフィルタ装置10に意図せずに触れることを防止する。垂直部13Bの下端は、レボフレーム30に設けられた差込みパイプ30Aに差し込まれて固定される。固定板13Dは、2本のボルト15によって支持プレート33に設けられたブラケット33Aに固定される(図2参照)。 The
The
保護カバー11およびフィルタ装置10の取り外しは、油圧ショベル1が停止してから十分な時間が経過し、フィルタ装置10の温度が低下したのを確認してから行う。取り外し作業は、保護カバー11、フィルタ装置10の順で行う。 [Description of detaching method of protective cover and filter device]
The
このように、保護カバー11は、2本のボルト15を取り外すだけで、容易に取り外すことができる。 The worker first tilts up the tilt-up
Thus, the
作業者は、フィルタ装置10に接続された電線や配管等を外すとともに、フィルタ装置10の脚部をフライホイールケースの上面に固定するボルトを取り外して、フィルタ装置10を他の機器と切り離す。 Once the
An operator removes the electric wire, piping, etc. connected to the
フィルタ装置10を取り付けるときには、上述の手順とは逆の手順で行い、その後に保護カバー11を取り付ける。 As described above, since the
When the
以上の本実施形態によれば、フィルタ装置10が保護カバー11によって覆われており、エンジン7の停止後のフィルタ装置10の温度が完全に低下していない状況でも、保護カバー11がフィルタ装置10からの熱を遮断するため、フィルタ装置10以外の箇所の整備を開始することができ、整備性を良好にできる。
また、上部旋回体3の左側面近傍に配置された油圧ポンプ9の上部に近い位置にフィルタ装置10とそれを覆う保護カバー11が設けられているので、フィルタ装置10および保護カバー11の取り外しに際して、斜め前方への水平移動を遮る部品等がなく、それらを容易に外すことができる。
さらに、チルトアップ時に保護カバー11を取り外すと、チルトアップさせることで出現する作業空間3Bにフィルタ装置10が露出し、この作業空間3Bにフィルタ装置10を引き出してエンジンルーム31から取り出すことができ、フィルタ装置10を容易に整備できる。 [Effect of the embodiment]
According to the present embodiment described above, even when the
Further, since the
Further, when the
なお、本発明は前述の実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれるものである。
例えば、前記実施形態は、チルトアップフロア6の上にキャブ5が設けられた油圧ショベル1であったが、図6に示すようなチルトアップフロア106の上にキャノピ105が設けられた油圧ショベル101であってもよい。油圧ショベル101のその他の構成は前記実施形態の油圧ショベル1と同じであるため、その説明を省略する。 [Modification]
It should be noted that 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.
For example, in the above-described embodiment, the
Claims (4)
- 下部走行体と、下部走行体の上に旋回自在に設けられた上部旋回体と、上部旋回体に設けられ、チルトアップフロアと、エンジンから排出された排気ガスを浄化する排気ガス後処理装置とを備える油圧ショベルであって、
前記エンジンと、前記エンジンの車幅方向の一方に設けられて当該エンジンを冷却するクーリングユニットと、前記エンジンの車幅方向の他方に設けられて当該エンジンにより駆動される油圧ポンプとが収容されたエンジンルームを備え、
前記排気ガス後処理装置は、その長手方向が車体前後方向に沿うように前記エンジンルーム内で前記油圧ポンプの上方に設けられているとともに、前記チルトアップフロアをチルトアップした状態で当該排気ガス後処理装置の露出する部分が着脱可能な保護カバーによって覆われている
ことを特徴とする油圧ショベル。 A lower traveling body, an upper revolving body provided on the lower traveling body so as to be rotatable, a tilt-up floor provided on the upper revolving body, and an exhaust gas aftertreatment device for purifying exhaust gas discharged from the engine; A hydraulic excavator comprising:
The engine, a cooling unit provided on one side in the vehicle width direction of the engine to cool the engine, and a hydraulic pump provided on the other side in the vehicle width direction of the engine and driven by the engine are accommodated. Equipped with an engine room,
The exhaust gas aftertreatment device is provided above the hydraulic pump in the engine room so that the longitudinal direction thereof is along the longitudinal direction of the vehicle body, and the exhaust gas aftertreatment device is disposed in a state where the tilt up floor is tilted up. A hydraulic excavator characterized in that an exposed portion of the processing apparatus is covered with a removable protective cover. - 請求項1に記載の油圧ショベルにおいて、
前記エンジンルーム内には、前記チルトアップフロアを支持する支持プレートが前記排気ガス後処理装置の上方に配置され、
前記保護カバーは、前記支持プレートにおける車体前後方向の前方に設けられた前縁から前記下部走行体を構成するレボフレームの上部に亘って設けられている
ことを特徴とする油圧ショベル。 The hydraulic excavator according to claim 1,
In the engine room, a support plate that supports the tilt-up floor is disposed above the exhaust gas aftertreatment device,
The hydraulic excavator, wherein the protective cover is provided from a front edge provided in front of the support plate in a longitudinal direction of the vehicle body to an upper portion of a revo frame constituting the lower traveling body. - 請求項1に記載の油圧ショベルにおいて、
前記保護カバーは、前記排気ガス後処理装置の車体前後方向の前方および上方のうちの少なくとも一方を覆う
ことを特徴とする油圧ショベル。 The hydraulic excavator according to claim 1,
The hydraulic excavator, wherein the protective cover covers at least one of a front side and a top side of the exhaust gas aftertreatment device in a vehicle longitudinal direction. - 請求項1に記載の油圧ショベルにおいて、
前記保護カバーは、前記排気ガス後処理装置の車幅方向の一側方を覆う
ことを特徴とする油圧ショベル。 The hydraulic excavator according to claim 1,
The excavator, wherein the protective cover covers one side of the exhaust gas aftertreatment device in the vehicle width direction.
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JP2015531966A JP5919441B2 (en) | 2015-02-27 | 2015-02-27 | Excavator |
PCT/JP2015/055989 WO2015122547A1 (en) | 2015-02-27 | 2015-02-27 | Hydraulic shovel |
CN201580000372.7A CN105051291B (en) | 2015-02-27 | 2015-02-27 | Hydraulic shovel |
DE112015000025.9T DE112015000025B4 (en) | 2015-02-27 | 2015-02-27 | Hydraulic excavator |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007056627A (en) * | 2005-08-26 | 2007-03-08 | Hitachi Constr Mach Co Ltd | Construction machine |
JP2007062506A (en) * | 2005-08-30 | 2007-03-15 | Hitachi Constr Mach Co Ltd | Construction machine |
JP2010007525A (en) * | 2008-06-25 | 2010-01-14 | Hitachi Constr Mach Co Ltd | Construction machine |
JP2013002236A (en) * | 2011-06-21 | 2013-01-07 | Hitachi Constr Mach Co Ltd | Construction machine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008156835A (en) * | 2006-12-21 | 2008-07-10 | Shin Caterpillar Mitsubishi Ltd | Construction machinery provided with exhaust gas posttreatment system |
US8418448B2 (en) * | 2008-05-22 | 2013-04-16 | Hitachi Construction Machinery Co., Ltd. | Exhaust gas treatment device for construction machine |
JP2011001849A (en) * | 2009-06-17 | 2011-01-06 | Hitachi Constr Mach Co Ltd | Exhaust gas treatment device for diesel engine |
JP5654856B2 (en) * | 2010-11-30 | 2015-01-14 | 株式会社小松製作所 | Excavator |
CN102770603B (en) * | 2011-02-01 | 2014-05-07 | 株式会社小松制作所 | Construction machine |
-
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007056627A (en) * | 2005-08-26 | 2007-03-08 | Hitachi Constr Mach Co Ltd | Construction machine |
JP2007062506A (en) * | 2005-08-30 | 2007-03-15 | Hitachi Constr Mach Co Ltd | Construction machine |
JP2010007525A (en) * | 2008-06-25 | 2010-01-14 | Hitachi Constr Mach Co Ltd | Construction machine |
JP2013002236A (en) * | 2011-06-21 | 2013-01-07 | Hitachi Constr Mach Co Ltd | Construction machine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110805082A (en) * | 2019-11-11 | 2020-02-18 | 江苏天煤机电科技有限公司 | Mining multifunctional explosion-proof excavator |
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