WO2015045113A1 - 還元剤タンク、及び作業車両 - Google Patents
還元剤タンク、及び作業車両 Download PDFInfo
- Publication number
- WO2015045113A1 WO2015045113A1 PCT/JP2013/076326 JP2013076326W WO2015045113A1 WO 2015045113 A1 WO2015045113 A1 WO 2015045113A1 JP 2013076326 W JP2013076326 W JP 2013076326W WO 2015045113 A1 WO2015045113 A1 WO 2015045113A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reducing agent
- tank
- gauge member
- plate
- tank body
- Prior art date
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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
- E02F9/08—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
- E02F9/0883—Tanks, e.g. oil tank, urea tank, fuel tank
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2896—Liquid catalyst carrier
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/0046—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm with a stationary probe, where a liquid specimen is separated from the mean mass and measured
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/02—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to a reducing agent tank and a work vehicle.
- a work vehicle equipped with a selective catalytic reduction device has been proposed to treat exhaust gas from the engine.
- the hydraulic excavator described in Patent Document 1 includes a selective catalyst reduction device and a reducing agent tank.
- the selective catalyst reduction device treats exhaust gas using a reducing agent such as urea water.
- the reducing agent is stored in a reducing agent tank.
- the worker When supplying the reducing agent to the reducing agent tank installed in the work vehicle, the worker usually performs the reducing agent supply operation while looking at the reducing agent tank downward.
- the reducing agent is replenished while visually confirming the amount of the reducing agent in the reducing agent tank.
- An object of the present invention is to provide a reducing agent tank in which the amount of reducing agent in the reducing agent tank can be easily confirmed visually when the reducing agent is supplied to the reducing agent tank.
- the reducing agent tank according to the first aspect of the present invention includes a tank body and a gauge member.
- the tank body stores a reducing agent.
- the gauge member is a tubular member that communicates with the inside of the tank body and visually confirms the amount of reducing agent stored in the tank body.
- the gauge member is provided on the first wall surface of the plurality of wall surfaces constituting the tank body so as to be inclined with respect to the bottom plate of the tank body.
- the tank body can be supplied with a reducing agent from a supply port.
- the supply port and the gauge member are arranged side by side in a direction along the first wall surface in plan view.
- the gauge member since the gauge member communicates with the inside of the tank body, the amount of the reducing agent in the tank body can be confirmed by visually observing the liquid surface of the reducing agent in the gauge member. And since this gauge member inclines with respect to a baseplate, even if it looks at a gauge member from upper direction, the liquid level position of the reducing agent in a gauge member can be confirmed. As a result, the amount of reducing agent in the reducing agent tank can be easily confirmed visually when the reducing agent is replenished. Further, since the replenishing port and the gauge member are arranged side by side in the direction along the first wall surface in plan view, the reducing agent can be replenished while visually confirming the amount of the reducing agent from above. .
- the gauge member is located at the center in the width direction of the first wall surface.
- the replenishing port is located on the end side of the tank body in the width direction of the first wall surface in plan view.
- the reducing agent tank further includes a guide tube for guiding the reducing agent supplied from the supply port into the tank body.
- the gauge member is provided to protrude outward on the first wall surface.
- the guide tube extends upward from the upper surface of the tank body and in the direction in which the gauge member protrudes. According to this configuration, the worker who performs the replenishment operation can more easily visually check the gauge member while performing the replenishment operation.
- the upper end of the gauge member is located below the upper end of the tank body. According to this configuration, since there is a gap between the upper end of the tank body and the upper end of the gauge member, even if the liquid level of the reducing agent reaches the upper end of the gauge member, there is a space at the upper end portion in the tank body. Remains. When the reducing agent in the reducing agent tank freezes in a cold region, etc., the volume of the reducing agent increases.However, as described above, since there is a space in the tank body, Breakage can be prevented.
- the reducing agent tank further includes a floating member.
- the floating member can move in the length direction of the gauge member in the gauge member, and can float on the reducing agent. According to this configuration, the position of the liquid surface of the reducing agent in the gauge member can be confirmed more visually.
- the gauge member is inclined with respect to the bottom plate in a state where the first wall surface is viewed in front.
- a work vehicle includes any of the reducing agent tanks described above and a work plate.
- the work plate is located outside the first wall surface.
- the work plate is located above the gauge member and below the supply port.
- the worker can get on the work plate and perform the replenishment work of the reducing agent to the reduction tank.
- the work plate is located above the gauge member of the reducing agent tank, the operator performs the replenishment work while looking at the reducing agent tank downward.
- the amount of the reducing agent can be easily confirmed visually.
- a replenishment container containing a reductant for replenishment can be placed on the work plate to perform a replenishment operation, and as a result, the work of replenishing the reducing agent to the tank body while tilting the replenishment container can be easily performed.
- the reducing agent tank and the work plate are arranged side by side in a plan view.
- the work vehicle further includes a tank cover disposed above the reducing agent tank so as to cover the reducing agent tank.
- the tank cover and the work plate are formed in a step shape as a whole.
- the present invention it is possible to provide a reducing agent tank in which the amount of reducing agent in the reducing agent tank can be easily confirmed visually when the reducing agent is supplied to the reducing agent tank.
- the perspective view of a hydraulic excavator The rear view which shows the internal structure of an engine room.
- the perspective view of an exhaust-gas aftertreatment unit The perspective view which shows the frame structure of a hydraulic shovel.
- the partial perspective view which shows the detail of the frame structure of a hydraulic shovel.
- the side sectional view of the right front part of the vehicle body The perspective view of a reducing agent tank.
- the partial perspective view of the hydraulic excavator in the state where the opening and closing part was opened.
- FIG. 1 is a perspective view of a hydraulic excavator 100.
- front and rear mean the front and rear of the vehicle body 1.
- right”, “left”, “upper”, and “lower” refer to directions based on the state of looking forward from the driver's seat, and are referred to as “vehicle width direction” and “left-right direction”. Is synonymous.
- a hydraulic excavator 100 includes a vehicle main body 1 and a work machine 4, and performs a desired work using the work machine 4.
- the vehicle body 1 has a traveling body 2 and a revolving body 3.
- the traveling body 2 includes a pair of traveling devices 2a and 2b.
- the traveling device 2a has a crawler belt 2d
- the traveling device 2b has a cover belt 2c.
- the traveling devices 2a and 2b travel the hydraulic excavator 100 by obtaining driving force from the engine 10 and driving the crawler belts 2c and 2d.
- the turning body 3 is placed on the traveling body 2 and is provided so as to be able to turn with respect to the traveling body 2.
- the swivel body 3 includes a cab 5, a fuel tank 6, a hydraulic oil tank 7, an engine room 8, a counterweight 18, and the like.
- the fuel tank 6 stores fuel for driving the engine 10 and is disposed in front of the hydraulic oil tank 7.
- the hydraulic oil tank 7 stores hydraulic oil.
- the hydraulic oil tank 7 is arranged side by side with the fuel tank 6 in the front-rear direction.
- the engine room 8 houses an engine 10, a hydraulic pump 11, an exhaust gas aftertreatment unit 20, and the like as will be described later.
- the engine room 8 is disposed behind the cab 5, the fuel tank 6, and the hydraulic oil tank 7.
- An engine hood 12 is disposed above the engine room 8.
- the counterweight 18 is disposed behind the engine room 8.
- the work machine 4 is attached to the front part of the revolving unit 3.
- the work machine 4 includes a boom 4a, an arm 4b, a bucket 4c, a pair of boom cylinders 4d, an arm cylinder 4e, and a bucket cylinder 4f.
- a base end portion of the boom 4a is rotatably connected to the swing body 3.
- the base end portion of the arm 4b is rotatably connected to the tip end portion of the boom 4a.
- Bucket 4c is rotatably connected to the tip of arm 4b.
- Each boom cylinder 4d, arm cylinder 4e, and bucket cylinder 4f are hydraulic cylinders and are driven by hydraulic oil discharged from a hydraulic pump 11 described later.
- Each boom cylinder 4d operates the boom 4a.
- the arm cylinder 4e operates the arm 4b.
- the bucket cylinder 4f operates the bucket 4c.
- the work machine 4 is driven by driving these cylinders 4d, 4e, and 4f.
- FIG. 2 is a view of the internal structure of the engine room 8 as viewed from the rear of the vehicle.
- an engine 10 a flywheel housing 13, a hydraulic pump 11, an exhaust gas aftertreatment unit 20, a fan 14, and a radiator 15 are arranged in the engine room 8.
- the fan 14 generates an airflow that flows from right to left in the engine room 8.
- the radiator 15 is installed on the right side of the fan 14.
- cooling air enters the engine room 8 from the outside through the ventilation holes 801 (see FIG. 1).
- the cooling water flowing inside the radiator 15 is cooled by this cooling air.
- the engine 10, the flywheel housing 13, and the hydraulic pump 11 are arranged side by side in the vehicle width direction.
- the hydraulic pump 11 is driven by the engine 10.
- the hydraulic pump 11 is disposed on the left side of the engine 10.
- the flywheel housing 13 is disposed between the engine 10 and the hydraulic pump 11.
- the flywheel housing 13 is attached to the left side surface of the engine 10.
- the hydraulic pump 11 is attached to the left side surface of the flywheel housing 13.
- FIG. 3 is a perspective view of the exhaust gas aftertreatment unit 20 as viewed from the right front. As shown in FIGS. 2 and 3, the exhaust gas aftertreatment unit 20 processes the exhaust from the engine 10.
- the exhaust gas aftertreatment unit 20 includes a diesel particulate filter device (DPF) 21, a selective catalyst reduction device (SCR) 22, a connection pipe 23, and an injection device 24.
- DPF diesel particulate filter device
- SCR selective catalyst reduction device
- the diesel particulate filter device 21 is a device that processes exhaust from the engine 10, and exhaust gas is supplied from the engine 10 through a turbocharger (not shown) and a pipe 31. Specifically, the diesel particulate filter device 21 collects particulate matter contained in the exhaust gas with a filter. The diesel particulate filter device 21 incinerates the collected particulate matter in the diesel particulate filter device 21.
- the diesel particulate filter device 21 has a substantially cylindrical outer shape, and is arranged such that its longitudinal direction is along the front-rear direction.
- connection pipe 23 is a pipe that connects the diesel particulate filter device 21 and the selective catalyst reduction device 22, and is disposed above the engine 10.
- the connection pipe 23 is formed in an S shape as a whole and includes a first bent portion 23a, a straight portion 23b, and a second bent portion 23c.
- One end of the first bent portion 23a is connected to the exhaust gas outlet 21a of the diesel particulate filter device 21, and the other end of the first bent portion 23a is connected to one end of the straight portion 23b.
- One end of the second bent portion 23c is connected to the exhaust gas inlet 22a of the selective catalyst reduction device 22, and the other end of the second bent portion 23c is connected to the other end of the linear portion 23b.
- the straight portion 23b extends along the longitudinal direction of the connection pipe 23 between the first bent portion 23a and the second bent portion 23c.
- the injection device 24 is attached to the first bent portion 23a.
- the injection device 24 is a device that injects a reducing agent sucked up by a reducing agent pump 19 from a reducing agent tank 9 described later into the connection pipe 23 and adds the reducing agent to the exhaust gas flowing through the connection pipe 23.
- the reducing agent in the present embodiment is urea water.
- the urea water added to the exhaust gas is hydrolyzed by the heat of the exhaust gas to become ammonia, and the ammonia is supplied to the selective catalytic reduction device 22 through the connection pipe 23 together with the exhaust gas.
- the selective catalyst reduction device 22 is a device that processes exhaust gas from the engine 10. Specifically, the selective catalytic reduction device 22 reduces nitrogen oxides with ammonia obtained by hydrolyzing urea.
- the selective catalyst reduction device 22 has a substantially cylindrical outer shape, and is arranged such that its longitudinal direction is along the vehicle front-rear direction.
- An exhaust pipe 33 is connected to the selective catalyst reduction device 22, and the exhaust pipe 33 protrudes upward from the engine hood 12. The exhaust gas processed by the exhaust gas post-processing unit 20 is discharged from the exhaust pipe 33 to the outside.
- the diesel particulate filter device 21, the selective catalyst reduction device 22, the connection pipe 23, and the injection device 24 are located above the engine 10.
- the diesel particulate filter device 21, the connection pipe 23, and the selective catalyst reduction device 22 are arranged in parallel.
- the diesel particulate filter device 21 and the selective catalyst reduction device 22 are arranged close to each other, and are arranged side by side in a state where their respective longitudinal directions are orthogonal to the vehicle width direction.
- the engine 10, the selective catalyst reduction device 22, the connection pipe 23, and the diesel particulate filter device 21 are arranged in this order from the right side in the vehicle width direction.
- FIG. 4 is a perspective view showing the frame structure of the excavator 100 as seen from the right front.
- the excavator 100 includes a turning frame 26 and a body frame 27.
- the turning frame 26 supports the engine 10 via a mounting member such as a rubber damper.
- the turning frame 26 includes a center frame 30, a first frame 31, and a second frame 32.
- the center frame 30 extends in the vehicle front-rear direction.
- the engine 10 is disposed on the rear portion of the center frame 30.
- the center frame 30 includes a first center frame 301 and a second center frame 302.
- the first center frame 301 and the second center frame 302 are spaced apart from each other in the vehicle width direction.
- the first center frame 301 and the second center frame 302 are plate-like members extending in the vehicle longitudinal direction and the vertical direction, respectively.
- the center frame 30 has a bottom plate 303.
- the first center frame 301 and the second center frame 302 are connected by a bottom plate 303.
- the first frame 31 is disposed on one side in the vehicle width direction with respect to the center frame 30.
- the second frame 32 is disposed on the other side in the vehicle width direction with respect to the center frame 30.
- the first frame 31 is disposed on the right side of the center frame 30.
- the second frame 32 is disposed on the left side of the center frame 30.
- the first frame 31 has a shape extending in the vehicle front-rear direction.
- the first frame 31 is disposed away from the center frame 30 in the vehicle width direction.
- the first frame 31 and the center frame 30 are connected by a plurality of beam members 311.
- reference numeral 311 is given to only some of the beam members.
- the second frame 32 has a shape extending in the vehicle front-rear direction.
- the second frame 32 is spaced from the center frame 30 in the vehicle width direction.
- the second frame 32 and the center frame 30 are connected by a plurality of beam members 321. In the drawings, only some of the beam members are denoted by reference numeral 321.
- the body frame 27 is erected on the turning frame 26.
- the vehicle body frame 27 is disposed around equipment such as the engine 10 and the hydraulic pump 11.
- the exhaust treatment device 24 described above is attached to the vehicle body frame 27.
- FIG. 5 is a partial perspective view showing the details of the frame structure of the excavator 100 as seen from the front right.
- a battery mounting member 40 is installed at the right front portion of the revolving frame 26.
- the battery mounting member 40 is a member for mounting the battery 17 (see FIG. 6).
- the battery mounting member 40 includes a bottom plate 41 and a rear plate 42.
- the bottom plate 41 has a rectangular shape, and the right end edge is fixed to the first frame 31 by welding or the like.
- a battery 17 (see FIG. 6) is fixed on the bottom plate 41 with a mounting bracket or the like.
- the rear plate 42 extends upward from the rear end edge of the bottom plate 41.
- the rear plate 42 has a right edge fixed to the first frame 31 by welding or the like.
- a reducing agent tank mounting member 50 is installed behind the battery mounting member 40 and adjacent to the battery mounting member 40.
- the reducing agent tank mounting member 50 is a member for mounting the reducing agent tank 9 (see FIG. 6).
- the reducing agent tank mounting member 50 includes a bottom plate 51 and a partition plate 52.
- the bottom plate 51 of the reducing agent tank mounting member 50 is rectangular and has an opening near the center.
- the left end edge of the bottom plate 51 is fixed to the center frame 30 by welding or the like, and the right end edge of the bottom plate 51 is fixed to the first frame 31 by welding or the like.
- the reducing agent tank 9 is fixed by a mounting bracket or the like.
- the partition plate 52 of the reducing agent tank mounting member 50 is located between the reducing agent tank 9 and the battery 17. Specifically, the partition plate 52 extends upward from the front edge of the bottom plate 51.
- the partition plate 52 is a plate-like portion that extends in the vertical direction and extends in the vehicle width direction.
- the left end edge of the partition plate 52 is fixed to the center frame 30 by welding or the like, and the right end edge of the partition plate 52 is fixed to the first frame 31 by welding or the like.
- the front surface of the partition plate 52 is in contact with the rear surface of the rear plate 42 of the battery placement member 40. Further, the partition plate 52 extends above the rear plate 42.
- FIG. 6 is a side cross-sectional view of the right front portion of the vehicle body 1.
- a battery cover 60 is detachably fixed to the revolving frame 26 so as to cover the battery 17 fixed on the battery mounting member 40.
- the battery cover 60 is substantially formed in a rectangular parallelepiped shape, and the bottom surface is opened.
- the battery cover 60 includes an upper plate (an example of a work plate) 65, a rear plate 61, a front plate 62, a left plate 63, and a right plate 64 (see FIG. 1).
- the upper plate 65 has a rectangular shape and is located on the front side (an example of the first side) of the reducing agent tank 9. Further, the upper plate 65 and the reducing agent tank 9 are arranged side by side in a plan view. Further, the upper plate 65 is located above the gauge member 92 of the reducing agent tank 9 described later.
- the rear plate 61 extends downward from the rear edge of the upper plate 65 and is positioned between the reducing agent tank 9 and the battery 17. That is, the rear plate 61 is located behind the battery 17.
- the front plate 62 extends downward from the front edge of the upper plate 65
- the left plate 63 extends downward from the left edge of the upper plate 65
- the right plate 64 extends downward from the right edge of the upper plate 65.
- the battery cover 60 is detachably attached to the revolving frame 26 by the front plate 62, the left plate 63, and the right plate 64 being removably attached to the revolving frame 26 directly or indirectly.
- the rear plate 61 is not attached to the revolving frame 26. Specifically, the lower end portion of the rear plate 61 is positioned above the battery placement member 40 without contacting the battery placement member 40. That is, a gap is formed between the lower end of the rear plate 61 and the battery placement member 40. Further, the rear plate 61 is located in front of the rear plate 42 of the battery placement member 40. That is, the rear plate 61 is located between the battery 17 and the rear plate 42 in the front-rear direction.
- FIG. 7 is a perspective view showing the reducing agent tank 9.
- the lid member 95 is removed.
- the reducing agent tank 9 includes a tank body 91, a gauge member 92, a guide tube 93, and a floating member 94.
- the reducing agent tank 9 is connected to a reducing agent pump 19 via a reducing agent pipe (not shown), and the reducing agent pump 19 is connected to the injection device 24 via another reducing agent pipe (not shown). Yes.
- the tank body 91 has a substantially rectangular parallelepiped shape and stores a reducing agent therein. Specifically, the tank main body 91 has a bottom plate 910, first to fourth side plates 911 to 914, and an upper plate 915. When the reducing agent tank 9 is placed on a horizontal plane with the bottom plate 910 down, the bottom plate 910 extends in the horizontal direction.
- First to fourth side plates 911 to 914 extend upward from the respective edges of the bottom plate 910.
- the first side plate 911 and the second side plate 912 are opposed to each other, and the third side plate 913 and the fourth side plate 914 are opposed to each other.
- the first and second side plates 911 and 912 are wider than the third and fourth side plates 913 and 914, that is, have a longer length in the horizontal direction.
- the outer side surface (an example of the first wall surface) of the first side plate 911 faces the first side.
- the X direction of FIG. 7 is a direction which faces the 1st side.
- a guide tube 93 extends from the upper plate 915 upward and to the first side.
- the guide cylinder 93 is cylindrical.
- a replenishment port 93 a is formed at the tip of the guide tube 93. At least a part of the supply port 93a is located on the first side with respect to the outer surface of the first side plate 911 (see FIG. 6).
- a lid portion 95 is detachably attached to the distal end portion of the guide tube 93 so as to seal the supply port 93a.
- the supply port 93 a is located above the upper plate 65 of the battery case 60.
- a gauge member 92 is attached to the outer side surface of the first side plate 911 of the tank body 91. That is, the gauge member 92 is attached to the tank body 91 on the first side of the tank body 91.
- the gauge member 92 is provided so as to protrude outward. Note that the direction in which the gauge member 92 protrudes is the first side, that is, the front side.
- the gauge member 92 is a member for visually confirming the amount of reducing agent in the tank body 91.
- the gauge member 92 is a linear tubular member and is substantially parallel to the first side plate 911. Further, the gauge member 92 is inclined with respect to the bottom plate 910 of the tank body 91 as viewed from the first side. That is, the gauge member 92 is inclined with respect to the bottom plate 910 of the tank main body 91 when the outer side surface of the first side plate 911 of the tank main body 91 is viewed from the front.
- the gauge member 92 is located at the center of the tank body 91 in the width direction when viewed from the first side.
- the replenishing port 93 a is located at the end of the tank body 91 in plan view.
- the gauge member 92 and the supply port 93a are arranged side by side in a direction along the outer surface of the first side plate 911 in plan view (see FIG. 9). That is, the gauge member 92 and the supply port 93a are located in the same region in the vehicle front-rear direction (see FIG. 6). More specifically, the replenishing port 93a is located above the gauge member 92 in a side view (when viewed from the horizontal direction and perpendicular to the direction viewed from the first side).
- the gauge member 92 is connected to the tank body 91 at the upper end and the lower end. Further, the gauge member 92 communicates with the tank body 91 via the upper end portion and the lower end portion. For this reason, when the liquid level of the reducing agent in the tank main body 91 is located above the lower end portion of the gauge member 92, the reducing agent in the tank main body 91 passes through the lower end portion of the gauge member 92. Supplied in. That is, the position of the liquid level of the reducing agent in the gauge member 92 is substantially the same as the position of the liquid level of the reducing agent in the tank body 91.
- the upper end of the gauge member 92 is located below the upper end of the tank body 91. That is, the upper end of the gauge member 92 is located at a position spaced downward from the upper end of the tank main body 91.
- a floating member 94 is accommodated in the gauge member 92.
- the floating member 94 is a member for confirming the liquid level of the reducing agent in the gauge member 92, and is configured to float on the reducing agent. Further, the floating member 94 is movable in the gauge member 92 in the length direction of the gauge member 92.
- a tank cover 80 is attached so as to cover the reducing agent tank 9.
- the tank cover 80 is supported by a plurality of pillars extending upward from the revolving frame 26.
- the tank cover 80 includes an upper plate 81, a front plate 82, a right plate 83 (see FIG. 1), a left plate 84, and an opening / closing portion 85.
- the upper plate 81 is located above the reducing agent tank 9.
- the front plate 82 is a plate-like member extending in the vertical direction and the vehicle width direction, and is positioned almost directly above the rear plate 61 of the battery cover 60.
- the right plate 83 is located on the right side of the reducing agent tank 9, and the left plate 84 is located on the left side of the reducing agent tank 9.
- An opening 86 is formed across the upper plate 81 and the front plate 82, and the opening 86 is closed by an opening / closing portion 85.
- the opening / closing part 85 is attached to the upper plate 81 so as to be opened and closed. Specifically, the opening / closing part 85 is attached to the upper plate 81 via a hinge and can open and close the opening 86.
- the tank cover 80 and the upper plate 65 of the battery case 60 are formed in a step shape as a whole. Specifically, the upper plate 65 of the battery case 60 extends forward from the front plate 82 of the tank cover 80. Although a gap is formed between the upper plate 65 of the battery case 60 and the front plate 82 of the tank cover 80, the present invention is not particularly limited to this.
- FIG. 9 shows a state where the opening / closing portion 85 of the tank cover 80 is opened and the reducing agent tank 9 is viewed from above. As shown in FIG.
- the gauge member 92 and the replenishing port 93a are arranged side by side in a direction along the outer side surface of the first side plate 911 of the tank body 91 (in the vehicle width direction in the present embodiment) in plan view. Therefore, it can be seen from the gap formed by opening the opening / closing part 85.
- the opening / closing part 85 opens and closes by rotating around an axis extending in a direction along the outer surface of the first side plate 911 in a plan view.
- the excavator 100 according to the present embodiment has the following characteristics.
- the amount of the reducing agent in the tank body 91 can be confirmed by visually observing the liquid level of the reducing agent in the gauge member 92. Since the gauge member 92 is inclined with respect to the bottom plate 910 as viewed from the first side, even if the gauge member 92 is viewed from above as shown in FIG. The liquid level position of the agent can be confirmed. That is, even a worker riding on the upper plate 65 of the battery cover 60 can check the liquid level position of the reducing agent in the gauge member 92. In the above embodiment, the liquid level position of the reducing agent can be confirmed by the floating member 94.
- the amount of the reducing agent in the reducing agent tank 9 can be easily confirmed visually when the reducing agent is replenished. Further, since the gauge member 92 and the replenishing port 93a are arranged side by side in the direction along the outer side surface of the first side plate 911 in plan view, the reductant is replenished while checking the amount of the reductant. Can do.
- the guide tube 93 extends toward the first side, an operator who performs the replenishment work can perform the replenishment work at a position where the gauge member 92 can be easily visually confirmed.
- the upper end of the gauge member 92 is located below the upper end of the tank body 91, that is, there is a gap between the upper end of the tank body 91 and the upper end of the gauge member 92. For this reason, even if the reducing agent is supplied until the liquid level of the reducing agent reaches the upper end of the gauge member 92, a space remains at the upper end portion in the tank body 91. When the reducing agent in the reducing agent tank freezes in a cold region or the like, the volume of the reducing agent becomes large. However, as described above, since there is a space in the tank body 91, the tank body due to the volume expansion of the reducing agent. 91 can be prevented from being damaged.
- the first side plate 911 to which the gauge member 92 is attached is wider than the third and fourth side plates 913 and 914. For this reason, the inclination angle ⁇ of the gauge member 92 can be further reduced. That is, the gauge member 92 can be inclined more greatly from the vertical direction. As a result, when the gauge member 92 is visually confirmed from above, the amount of the reducing agent in the tank body 91 can be more accurately confirmed.
- the floating member 94 is accommodated in the gauge member 92, but the invention is not particularly limited thereto, and the floating member 94 can be omitted. In this case, the liquid level of the reducing agent in the gauge member 92 is confirmed visually.
- the first side to which the gauge member 92 is attached is the front side in a state where the reducing agent tank 9 is placed on the reducing agent tank placing member 50, that is, the first side plate 911 of the tank body 91 is Although facing forward, it is not limited to this.
- the first side plate 911 of the tank body 91 may face the left side. In this case, it is preferable to install a working plate on the left side of the reducing agent tank 9 for an operator to get on when performing the replenishment work.
- Modification 3 In the said embodiment, although demonstrated taking the example of the hydraulic excavator to which this invention was applied, the working vehicle which can apply this invention is not limited to a hydraulic excavator.
- the present invention can be applied to a bulldozer, a wheel loader, a motor grader, or the like.
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
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- Toxicology (AREA)
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Abstract
Description
本実施形態に係る油圧ショベル100は、次の特徴を有する。
以上、本発明の実施形態について説明したが、本発明はこれらに限定されるものではなく、本発明の趣旨を逸脱しない限りにおいて種々の変更が可能である。
上記実施形態では、ゲージ部材92内に浮き部材94が収容されているが、特にこれに限定されず、浮き部材94を省略することもできる。この場合は、ゲージ部材92内の還元剤の液面を目視にて確認する。
上記実施形態では、還元剤タンク9を還元剤タンク載置部材50上に載置した状態で、ゲージ部材92が取り付けられる第1側は前側である、すなわち、タンク本体91の第1側板911が前方を向いているが、特にこれに限定されない。例えば、還元剤タンク9を還元剤タンク載置部材50上に載置した状態で、タンク本体91の第1側板911は、左側を向いていてもよい。この場合、還元剤タンク9の左側に、補給作業を行う際に作業者が乗るための作業プレートを設置することが好ましい。
上記実施形態では、本発明を適用した油圧ショベルを例に挙げて説明したが、本発明を適用できる作業車両は油圧ショベルに限定されない。例えば、本発明を、ブルドーザ、ホイールローダ、又はモータグレーダなどに適用することも可能である。
9 還元剤タンク
91 タンク本体
910 底板
911 第1側板
912 第2側板
913 第3側板
914 第4側板
92 ゲージ部材
93 案内筒
93a 補給口
94 浮き部材
100 油圧ショベル(作業車両)
Claims (7)
- 還元剤を貯留するタンク本体と、
前記タンク本体の内部と連通し、前記タンク本体内の還元剤の貯留量を目視確認するための管状のゲージ部材と、
を備え、
前記タンク本体には、補給口から還元剤を補給可能であり、
前記ゲージ部材は、前記タンク本体を構成する複数の壁面のうち第1壁面において、前記タンク本体の底板に対して傾斜して設けられ、
前記補給口と前記ゲージ部材とは、平面視において、前記第1壁面に沿った方向に並んで配置される、
還元剤タンク。 - 前記ゲージ部材は、前記第1壁面の幅方向の中央部に位置し、
前記補給口は、平面視で、前記第1壁面の幅方向の前記タンク本体の端部側に位置する、請求項1に記載の還元剤タンク。 - 前記補給口から補給された還元剤を前記タンク本体内に案内する案内筒、
をさらに備え、
前記ゲージ部材は、前記第1壁面において外方に突出して設けられ、
前記案内筒は、前記タンク本体の上面から上方かつ前記ゲージ部材が突出する方向に向かって延びる、請求項1または2に記載の還元剤タンク。 - 前記ゲージ部材の上端は、前記タンク本体の上端より下側に位置する、請求項1から3のいずれかに記載の還元剤タンク。
- 請求項1から4のいずれかに記載の還元剤タンクと、
前記第1壁面の外方に位置する作業プレートと、
を備え、
前記作業プレートは、前記ゲージ部材よりも上側であって、前記補給口よりも下側に位置する、
作業車両。 - 前記還元剤タンクと前記作業プレートとは、平面視において並んで配置される、請求項5に記載の作業車両。
- 前記還元剤タンクを覆うように前記還元剤タンクの上方に配置されるタンクカバーをさらに備え、
前記タンクカバーと作業プレートとは、全体として階段状に形成されている、
請求項5又は6に記載の作業車両。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/237,188 US9027688B2 (en) | 2013-09-27 | 2013-09-27 | Reducing agent tank and work vehicle |
KR1020157013984A KR101628798B1 (ko) | 2013-09-27 | 2013-09-27 | 환원제 탱크 및 작업 차량 |
CN201380002457.XA CN103797192B (zh) | 2013-09-27 | 2013-09-27 | 还原剂箱及作业车辆 |
JP2013547749A JP5501537B1 (ja) | 2013-09-27 | 2013-09-27 | 還元剤タンク、及び作業車両 |
PCT/JP2013/076326 WO2015045113A1 (ja) | 2013-09-27 | 2013-09-27 | 還元剤タンク、及び作業車両 |
DE112013000191.8T DE112013000191B4 (de) | 2013-09-27 | 2013-09-27 | Reduktionsmittelbehälter und Arbeitsfahrzeug |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2013/076326 WO2015045113A1 (ja) | 2013-09-27 | 2013-09-27 | 還元剤タンク、及び作業車両 |
Publications (1)
Publication Number | Publication Date |
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WO2015045113A1 true WO2015045113A1 (ja) | 2015-04-02 |
Family
ID=50671616
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PCT/JP2013/076326 WO2015045113A1 (ja) | 2013-09-27 | 2013-09-27 | 還元剤タンク、及び作業車両 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9027688B2 (ja) |
JP (1) | JP5501537B1 (ja) |
KR (1) | KR101628798B1 (ja) |
CN (1) | CN103797192B (ja) |
DE (1) | DE112013000191B4 (ja) |
WO (1) | WO2015045113A1 (ja) |
Cited By (1)
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JP2017071911A (ja) * | 2015-10-05 | 2017-04-13 | 住友建機株式会社 | ショベル |
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WO2013137169A1 (ja) * | 2012-03-16 | 2013-09-19 | 日立建機株式会社 | 建設機械 |
CN104136690B (zh) * | 2013-04-26 | 2016-01-20 | 株式会社小松制作所 | 推土机 |
CN105637149B (zh) * | 2013-10-08 | 2019-06-21 | 住友建机株式会社 | 挖土机 |
JP6240784B2 (ja) * | 2013-12-19 | 2017-11-29 | ボルボ トラック コーポレイション | 自動車のシャーシ上に取り付けられる排ガス処理システム |
JP5949793B2 (ja) * | 2014-01-17 | 2016-07-13 | コベルコ建機株式会社 | 建設機械 |
JP6241374B2 (ja) | 2014-06-25 | 2017-12-06 | コベルコ建機株式会社 | 建設機械 |
CN104364140B (zh) * | 2014-06-30 | 2016-10-12 | 株式会社小松制作所 | 作业车辆 |
CN104395182B (zh) * | 2014-08-25 | 2017-03-01 | 株式会社小松制作所 | 作业车辆 |
US9828743B2 (en) | 2014-08-25 | 2017-11-28 | Komatsu Ltd. | Bulldozer |
JP6307019B2 (ja) * | 2014-11-28 | 2018-04-04 | 日立建機株式会社 | 建設機械 |
JP6495082B2 (ja) * | 2015-04-17 | 2019-04-03 | 日立建機株式会社 | 建設機械 |
JP6320977B2 (ja) * | 2015-09-16 | 2018-05-09 | 株式会社日立建機ティエラ | 小型の建設機械 |
WO2016060279A1 (ja) * | 2015-10-28 | 2016-04-21 | 株式会社小松製作所 | 作業車両 |
WO2017043300A1 (ja) * | 2016-08-22 | 2017-03-16 | 株式会社小松製作所 | 作業車両 |
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- 2013-09-27 WO PCT/JP2013/076326 patent/WO2015045113A1/ja active Application Filing
- 2013-09-27 KR KR1020157013984A patent/KR101628798B1/ko active IP Right Grant
- 2013-09-27 US US14/237,188 patent/US9027688B2/en not_active Expired - Fee Related
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CN103797192B (zh) | 2015-10-21 |
DE112013000191B4 (de) | 2017-08-24 |
CN103797192A (zh) | 2014-05-14 |
JPWO2015045113A1 (ja) | 2017-03-02 |
KR101628798B1 (ko) | 2016-06-09 |
US9027688B2 (en) | 2015-05-12 |
DE112013000191T5 (de) | 2015-06-18 |
US20150090511A1 (en) | 2015-04-02 |
KR20150076247A (ko) | 2015-07-06 |
JP5501537B1 (ja) | 2014-05-21 |
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