WO2015045106A1 - 作業車両 - Google Patents
作業車両 Download PDFInfo
- Publication number
- WO2015045106A1 WO2015045106A1 PCT/JP2013/076301 JP2013076301W WO2015045106A1 WO 2015045106 A1 WO2015045106 A1 WO 2015045106A1 JP 2013076301 W JP2013076301 W JP 2013076301W WO 2015045106 A1 WO2015045106 A1 WO 2015045106A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reducing agent
- agent tank
- guide member
- battery
- plate
- 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
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/15—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with additional electric power supply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
-
- 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
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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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/40—Working vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2270/00—Problem solutions or means not otherwise provided for
- B60L2270/10—Emission reduction
- B60L2270/12—Emission reduction of 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
- 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
-
- 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
-
- 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]
-
- 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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Definitions
- the present invention relates to a work vehicle.
- a work vehicle equipped with a selective catalytic reduction device has been proposed to treat exhaust gas from the engine.
- a hydraulic excavator described in Patent Literature 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 reductant tank is located near the battery, and the battery is covered with a battery cover.
- the operator may perform a replenishment operation in a state where the container for storing the reductant for replenishment is placed on the battery cover. If the reductant spills when replenishing the reductant from the replenishing container to the reductant tank, the spilled reductant flows to the battery side through the battery cover, and the reductant adheres to the battery. Problems arise.
- An object of the present invention is to prevent the reducing agent from adhering to the battery.
- the work vehicle includes a reducing agent tank, a battery, a reducing agent tank mounting member, a battery cover, a first guide member, and a second guide member.
- the battery is arranged side by side with the reducing agent tank.
- the reducing agent tank mounting member has a bottom plate and a partition plate. A reducing agent tank is placed on the bottom plate.
- the partition plate extends upward from the bottom plate and is located between the reducing agent tank and the battery.
- the battery cover has an upper plate and a side plate.
- the upper plate is located above the battery.
- the side plate extends downward from the side of the upper plate and is located between the reducing agent tank and the battery.
- the first guide member extends from the side plate toward the reducing agent tank. Further, the first guide member is inclined downward toward the reducing agent tank.
- the second guide member is disposed below the first guide member and is inclined downward toward the reducing agent tank. The first end of the second guide member is located closer to the battery than the tip of the first guide member.
- the reducing agent tends to spill into the portion of the upper plate of the battery cover on the reducing agent tank side. For this reason, when the reducing agent is spilled on the upper plate of the battery cover, the spilled reducing agent flows downward from the upper plate along the side plate.
- the first guide member extends from the side plate toward the reducing agent tank, and the second guide member is disposed below the first guide member. Further, both the first guide member and the second guide member are inclined downward toward the reducing agent tank.
- the reducing agent that has flowed downward through the side plate falls along the first guide member from the tip of the first guide member (end on the reducing agent tank side) to the second guide member, and toward the reducing agent tank side. Flowing.
- the reducing agent does not flow to the battery side, it is possible to prevent the reducing agent from adhering to the battery.
- the second end of the second guide member is located closer to the reducing agent tank than the partition plate. According to this configuration, the reducing agent that has dropped downward from the second end of the second guide member falls to the reducing agent tank mounting member and does not flow to the battery side. As a result, it is possible to prevent the reducing agent from adhering to the battery.
- the work vehicle further includes a partition member extending between the second guide member and the partition plate. According to this structure, it can prevent with the partition member that the reducing agent which fell to the reducing agent tank mounting member scatters to the battery side.
- the partition member hangs from the second guide member.
- the lower end of the partition member is located closer to the reducing agent tank than the partition plate and lower than the upper end of the partition plate. According to the partition member configured in this way, it is possible to more reliably prevent the reducing agent that has fallen on the reducing agent tank mounting member from scattering toward the battery.
- the partition member is made of rubber. According to this configuration, there is no fear that the partition member is distorted, and the partition member can be reduced in weight.
- the work vehicle includes a reducing agent tank, a battery, a reducing agent tank mounting member, a battery cover, and a first guide member.
- the battery is arranged side by side with the reducing agent tank.
- the reducing agent tank mounting member has a bottom plate and a partition plate.
- a reducing agent tank is placed on the bottom plate.
- the partition plate extends upward from the bottom plate and is located between the reducing agent tank and the battery.
- the battery cover has an upper plate and a side plate.
- the upper plate is located above the battery.
- the side plate extends downward from the side of the upper plate and is located between the reducing agent tank and the battery.
- the first guide member extends from the side plate toward the reducing agent tank. Further, the first guide member is inclined downward toward the reducing agent tank.
- tip of a 1st guide member is located in the reducing agent tank side rather than a partition plate.
- the reducing agent spilled on the battery cover flows downward along the side plate, and further drops along the first guide member from the front end of the first guide member.
- the tip of the first guide member is located closer to the reducing agent tank than the partition plate. For this reason, the reducing agent dropped downward from the tip of the first guide member falls to the reducing agent tank mounting member and does not flow to the battery side. As a result, it is possible to prevent the reducing agent from adhering to the battery.
- FIG. 6 is a side cross-sectional view of a right front portion of a vehicle main body according to Modification 2.
- 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, and a counterweight 9.
- 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 9 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 in this order 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. Exhaust gas is supplied to the diesel particulate filter device 21 from the engine 10 via 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 with a heater attached to the filter.
- 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 18 to be 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 side frame 31, and a second side 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 side frame 31 is arranged on one side in the vehicle width direction with respect to the center frame 30.
- the second side frame 32 is disposed on the other side in the vehicle width direction with respect to the center frame 30.
- the first side frame 31 is disposed on the right side of the center frame 30.
- the second side frame 32 is disposed on the left side of the center frame 30.
- the first side frame 31 has a shape extending in the vehicle front-rear direction.
- the first side frame 31 is disposed away from the center frame 30 in the vehicle width direction.
- the first side 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 side frame 32 has a shape extending in the vehicle front-rear direction.
- the second side frame 32 is spaced from the center frame 30 in the vehicle width direction.
- the second side 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 side 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 end edge fixed to the first side 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 18 (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 side frame 31 by welding or the like.
- a reducing agent tank 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 18 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 side 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 has an upper plate 65 and first to fourth side plates 61 to 64.
- the upper plate 65 has a rectangular shape and is located above the battery 17.
- the side plates 61 to 64 extend downward from the end edges of the upper plate 65.
- the first side plate 61 extends downward from the rear end edge of the upper plate 65 and is located between the reducing agent tank 18 and the battery 17. That is, the first side plate 61 is located behind the battery 17.
- the first side plate 61 corresponds to the side plate of the present invention.
- the second side plate 62 extends downward from the front edge of the upper plate 65
- the third side plate 63 extends downward from the left edge of the upper plate 65
- the fourth side plate 64 (see FIG. 1) is the right edge of the upper plate 65. Extending downward from The battery cover 60 is detachably attached to the revolving frame 27 by the second to fourth side plates 62 to 64 being removably attached to the revolving frame 27 directly or indirectly.
- the first side plate 61 is not attached to the turning frame 27. Specifically, the lower end portion of the first side 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 first side plate 61 and the battery placement member 40. Further, the first side plate 61 is located in front of the rear plate 42 of the battery placement member 40. That is, the first side 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 details of the periphery of the battery and the reducing agent tank.
- a first guide member 71 is attached to the first side plate 61.
- the first guide member 71 extends from the first side plate 61 toward the reducing agent tank 18 and is inclined downward.
- the first guide member 71 also extends in the vehicle width direction, and has substantially the same length as the first side plate 61 in the vehicle width direction.
- the first guide member 71 is formed by bending a single plate-like member (for example, a steel plate), and has an attachment portion 72 and an inclined portion 73.
- the attachment portion 72 is a portion fixed to the first side plate 61 and is fixed to the first side plate 61 by welding or the like.
- the inclined portion 73 extends from the lower end edge of the attachment portion 72 toward the reducing agent tank 8.
- the inclined portion 73 is inclined downward toward the reducing agent tank 8.
- a tip 731 that is an edge of the inclined portion 73 on the reducing agent tank 18 side is located directly above the partition plate 52 or closer to the reducing agent tank 18 than the partition plate 52.
- the reducing agent tank 18 includes a tank body 181 and a replenishing unit 182.
- the tank body 181 has a substantially rectangular parallelepiped shape, and stores a reducing agent therein.
- the tank body 181 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).
- the replenishment part 182 extends upward and toward the battery 17 from the upper part of the tank body 181.
- the replenishing part 182 has a cylindrical shape and has a lid part 183 at its tip.
- the lid 183 is removed, and the tank body 181 is replenished with the reducing agent via the replenishing part 182.
- the upper end of the replenishment part 182 is located at a position higher than the upper plate 65 of the battery case 60.
- a tank cover 80 is attached so as to cover the reducing agent tank 18. As shown in FIG. 8, a plurality of column portions are fixed to the turning frame 26. Specifically, the first pillar portion 33 extends upward from the first side frame 31. A second pillar portion 34 extending in the vertical direction is fixed to the center frame 30. The second column part 34 extends substantially parallel to the first column part 33.
- the tank cover 80 is supported by a plurality of pillar parts including the first pillar part 33 and the second pillar part 34.
- 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 18.
- 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 first side plate 61 of the battery cover 60. In addition, a gap is formed between the front plate 82 and the first side plate 61.
- the right plate 83 is located on the right side of the reducing agent tank 18, and the left plate 84 is located on the left side of the reducing agent tank 18.
- An opening is formed across the upper plate 81 and the front plate 82, and this opening 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 the replenishment part 182 is exposed by opening the opening / closing part 85.
- the second guide member 75 is disposed below the first guide member 71 and is inclined downward toward the reducing agent tank 18.
- the second guide member 75 extends across the first pillar portion 33 and the second pillar portion 34.
- the second guide member 75 is formed by bending a single plate-like member (for example, a steel plate), and includes an attachment portion 76 and an inclined portion 77.
- the attachment portion 76 is a portion attached to the first pillar portion 33 and the second pillar portion 34.
- the inclined portion 77 is a portion inclined upward from the upper end edge of the mounting portion 76 toward the front. That is, the inclined portion 77 is inclined downward toward the reducing agent tank 18.
- FIG. 9 is a side sectional view showing details of the periphery of the first guide member 71 and the second guide member 75.
- the inclined portion 77 of the second guide member 75 has a first end 771 and a second end 772 in a side view.
- the first end 771 of the second guide member 75 is located closer to the battery 17 than the tip 731 of the first guide member 71. For this reason, in plan view, the inclined portion 73 of the first guide member 71 and the inclined portion 77 of the second guide member 75 partially overlap each other.
- the second end 772 of the inclined portion 77 of the second guide member 75 is located closer to the reducing agent tank 18 than the partition plate 52 of the reducing agent tank mounting member 50. That is, the second end 772 is located between the partition plate 52 and the reducing agent tank 18 in the front-rear direction. For this reason, the second end 772 is located above the bottom plate 51 of the reducing agent tank mounting member 50.
- a partition member 91 is provided so as to extend between the second guide member 75 and the partition plate 52. Specifically, the partition member 91 hangs downward from the second end 772 side of the second guide member 75.
- the partition member 91 is made of rubber having a rectangular shape, and the length in the vehicle width direction is substantially the same as that of the second guide member 75.
- the upper end portion of the partition member 91 is fixed to the attachment portion 76 of the second guide member 75.
- the partition member 91 is fixed to the surface of the mounting portion 76 on the battery 17 side.
- the lower end 911 of the partition member 91 is located below the upper end 521 of the partition plate 52 of the reducing agent tank mounting member 50. That is, the lower end portion of the partition member 91 and the upper end portion of the partition plate 52 of the reducing agent tank mounting member 50 overlap each other in the vertical direction. Further, the lower end 911 of the partition member 91 is located closer to the reducing agent tank 18 than the partition plate 52.
- the replenishment container containing the reductant for replenishment is placed on the upper plate 65 (FIG. 6) of the battery case 60. Placed on. An operator also rides on the upper plate 65 of the battery case 60 to perform a replenisher replenishment operation. Next, the opening / closing part 85 of the tank cover 80 is opened to expose the replenishing part 182 of the reducing agent tank 18. Then, the lid 183 is removed, and the reducing agent is replenished from the replenishing container to the reducing agent tank 18.
- the excavator 100 according to the present embodiment has the following characteristics.
- the reducing agent that has flowed further downward along the second guide member 75 falls downward from the second end 772 of the second guide member 75.
- the reducing agent dropped downward from the second end 772 of the second guide member 75 falls to the reducing agent tank mounting member 50 and does not flow to the battery 17 side. As a result, it is possible to prevent the reducing agent from adhering to the battery 17.
- partition member 91 Since the partition member 91 is made of rubber, the partition member 91 is not distorted, and the partition member 91 can be reduced in weight.
- the distal end 731 of the first guide member 71 is located closer to the reducing agent tank 18 than the partition plate 52, but is not particularly limited thereto. That is, the tip 731 of the first guide member 71 may be located closer to the battery 17 than the partition plate 52.
- the first guide member 71 and the second guide member 75 are installed, and the reducing agent is guided to the reducing agent tank mounting member 50 by the two guide members.
- the two guide members 75 can be omitted.
- the hydraulic excavator according to Modification 2 does not include the second guide member and the partition member.
- the tip 731 of the first guide member 71 is located closer to the reducing agent tank 18 than the partition plate 52.
- the first guide member 71 is positioned in the above-described embodiment so that the reducing agent falling downward from the tip of the first guide member 71 more reliably falls on the reducing agent tank mounting member 50. It is preferable that it is located below.
- 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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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、第1ガイド部材71の先端731は、仕切板52よりも還元剤タンク18側に位置しているが、特にこれに限定されない。すなわち、第1ガイド部材71の先端731は、仕切板52よりもバッテリ17側に位置していてもよい。
上記実施形態では、第1ガイド部材71と第2ガイド部材75とが設置されており、この2つのガイド部材によって、還元剤を還元剤タンク載置部材50側へとガイドしているが、第2ガイド部材75を省略することもできる。例えば、図10に示すように、変形例2に係る油圧ショベルは、第2ガイド部材と仕切部材とを備えていない。そして、第1ガイド部材71の先端731は、仕切板52よりも還元剤タンク18側に位置している。なお、第1ガイド部材71の先端から下方へ落下する還元剤が、より確実に還元剤タンク載置部材50に落下するように、第1ガイド部材71は、上記実施形態において設置されていた位置よりも下方に位置していることが好ましい。
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。
18 還元剤タンク
50 還元剤タンク載置部材
51 底板
52 仕切板
60 バッテリカバー
61 第1側板
65 上板
71 第1ガイド部材
75 第2ガイド部材
Claims (6)
- 還元剤タンクと、
前記還元剤タンクと間隔をあけて並んで配置されるバッテリと、
前記還元剤タンクが載置される底板、及び前記底板から上方に延び前記還元剤タンクと前記バッテリとの間に位置する仕切板、を有する還元剤タンク載置部材と、
前記バッテリの上方に位置する上板、及び前記上板の側辺から下方に延び前記還元剤タンクと前記バッテリとの間に位置する側板を有するバッテリカバーと、
前記側板から前記還元剤タンクに向かって延び、下方に傾斜する第1ガイド部材と、
前記第1ガイド部材の下方に配置され、前記還元剤タンクに向かって下方に傾斜する第2ガイド部材と、
を備え、
前記第2ガイド部材は、前記第1ガイド部材の先端より前記バッテリ側に位置する第1端を有する、
作業車両。 - 前記第2ガイド部材は、前記仕切板より前記還元剤タンク側に位置する第2端をさらに有する、請求項1に記載の作業車両。
- 前記第2ガイド部材と前記仕切板との間を延びる仕切部材をさらに備える、請求項1又は2に記載の作業車両。
- 前記仕切部材は、前記第2ガイド部材から垂れ下がり、
前記仕切部材の下端は、前記仕切板よりも前記還元剤タンク側であり且つ前記仕切板の上端よりも下側に位置する、請求項3に記載の作業車両。 - 前記仕切部材は、ゴム製である、請求項3又は4に記載の作業車両。
- 還元剤タンクと、
前記還元剤タンクと間隔をあけて並んで配置されるバッテリと、
前記還元剤タンクが載置される底板、及び前記底板から上方に延び前記還元剤タンクと前記バッテリとの間に位置する仕切板、を有する還元剤タンク載置部材と、
前記バッテリの上方に位置する上板、及び前記上板の側辺から下方に延び前記還元剤タンクと前記バッテリとの間に位置する側板を有するバッテリカバーと、
前記側板から前記還元剤タンクに向かって延び、下方に傾斜する第1ガイド部材と、
を備え、
前記第1ガイド部材の先端は、前記仕切板よりも前記還元剤タンク側に位置する、
作業車両。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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US14/235,173 US8973692B1 (en) | 2013-09-27 | 2013-09-27 | Work vehicle having reducing agent tank, battery and partition plate positioned between tank and battery |
PCT/JP2013/076301 WO2015045106A1 (ja) | 2013-09-27 | 2013-09-27 | 作業車両 |
DE112013000147.0T DE112013000147B4 (de) | 2013-09-27 | 2013-09-27 | Arbeitsfahrzeug |
JP2013547748A JP5501536B1 (ja) | 2013-09-27 | 2013-09-27 | 作業車両 |
CN201380002285.6A CN104755713B (zh) | 2013-09-27 | 2013-09-27 | 作业车辆 |
KR1020157013968A KR101568768B1 (ko) | 2013-09-27 | 2013-09-27 | 작업 차량 |
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