WO2016140320A1 - コンバイン - Google Patents

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Publication number
WO2016140320A1
WO2016140320A1 PCT/JP2016/056646 JP2016056646W WO2016140320A1 WO 2016140320 A1 WO2016140320 A1 WO 2016140320A1 JP 2016056646 W JP2016056646 W JP 2016056646W WO 2016140320 A1 WO2016140320 A1 WO 2016140320A1
Authority
WO
WIPO (PCT)
Prior art keywords
urea water
tank
exhaust gas
gas purification
case
Prior art date
Application number
PCT/JP2016/056646
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
梶原　康一
翔太 國松
Original Assignee
ヤンマー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2015042041A external-priority patent/JP6489638B2/ja
Priority claimed from JP2015067565A external-priority patent/JP6602031B2/ja
Application filed by ヤンマー株式会社 filed Critical ヤンマー株式会社
Priority to KR1020197036537A priority Critical patent/KR102408297B1/ko
Priority to KR1020247011412A priority patent/KR20240051298A/ko
Priority to KR1020217005465A priority patent/KR102326721B1/ko
Priority to CN201680004192.0A priority patent/CN107249301B/zh
Priority to KR1020227044806A priority patent/KR102656750B1/ko
Priority to KR1020217036042A priority patent/KR102481560B1/ko
Priority to KR1020177024803A priority patent/KR102057380B1/ko
Publication of WO2016140320A1 publication Critical patent/WO2016140320A1/ja

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/12—Details of combines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F12/00—Parts or details of threshing apparatus
    • A01F12/60—Grain tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9431—Processes characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
    • 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
    • F01N3/02—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
    • 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]
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2067—Urea
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • 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
    • 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 combine such as a harvester that harvests cereals planted in a field and collects grains, or a combine such as a harvester that harvests cereals for feed and collects it as feed.
  • the present invention relates to a combine equipped with an exhaust gas purification device that removes particulate matter (soot, particulates) contained in the exhaust gas or nitrogen oxides (NOx) contained in the exhaust gas.
  • a diesel particulate filter case (hereinafter referred to as a DPF case) and a urea selective reduction catalyst are internally provided as exhaust gas purification devices (post-treatment devices) in the exhaust path of a diesel engine.
  • an SCR case exhaust gas purification devices (post-treatment devices) in the exhaust path of a diesel engine.
  • a combine has a structure in which an uncut grain culm in a field is cut by a cutting blade device, the harvested culm is transported to a threshing device by a cereal transporting device and threshed, and the grain is collected in a grain tank
  • the engine is mounted on the traveling machine body, and the DPF case is disposed in the horizontal posture on the upper surface side of the engine, and exhaust gas is discharged from the engine toward the DPF case.
  • an exhaust gas purification device (DPF case or SCR case) is installed on a traveling machine body located away from the engine, such as a truck, an installation space for the exhaust gas purification device can be easily secured. There is a problem that the exhaust gas temperature in the purification device tends to drop below a predetermined temperature.
  • the exhaust gas purification device when the exhaust gas purification device includes a urea selective reduction catalyst, the exhaust gas purification device is provided with a urea mixing chamber for mixing urea water with the exhaust gas, and urea water is supplied to the urea mixing chamber. It is necessary to let Therefore, when an exhaust gas purification device having a urea selective reduction type catalyst is installed, not only the exhaust gas purification device but also a urea tank for storing urea water to be supplied to the urea mixing chamber, or urea water in the urea water tank is exhausted. A urea water pump to be supplied to the purification device must also be installed.
  • the urea water may freeze in a low temperature environment, and the exhaust gas purification treatment may not function due to the freezing of the urea water, and the purification ability may be reduced due to a change in the urea water concentration.
  • the present invention seeks to provide an improved combine by examining these current conditions.
  • the present invention provides a reaping device, a threshing device, an engine that drives the reaping device or the threshing device, and an exhaust gas purification device that removes nitrogen oxides in the exhaust gas of the engine.
  • the exhaust gas purification device is installed at the rear of the engine room, and urea is added to the exhaust gas purification device.
  • a urea water supply device for supplying water is provided below the exhaust gas purification device.
  • the exhaust gas purification device is disposed at a position sandwiched between the engine room and the grain tank, and the urea water supply is provided at a position sandwiched between the grain tank and the threshing device.
  • a device may be arranged.
  • the cereal conveyor that conveys the first item selected by the threshing device to the grain tank, and the reduction that is conveyed to the selection unit of the threshing device to re-sort the second item selected by the threshing device. It may be provided with a conveyor, and the urea water supply device may be fixed to a side surface of the threshing device and sandwiched between the whipping conveyor and the reduction conveyor.
  • the grain tank is pivotally supported on the rear side so as to be rotatable to the outside of the machine body, and a urea water tank for storing urea water is disposed behind the grain tank, while a fuel tank for storing fuel is provided. It may be arranged behind the threshing device.
  • a urea water tank for storing urea water may be disposed at the lower part of the machine frame of the threshing device. Moreover, you may arrange
  • a urea water tank for storing urea water is placed on the lower side of the threshing device so as to overlap the fuel tank, and the water supply port of the urea water tank and the fuel supply port of the fuel tank are projected toward the outside of the threshing device. It may be provided.
  • the exhaust gas purifying device is constituted by a first case for removing particulate matter in the exhaust gas of the engine and a second case for removing nitrogen oxides in the exhaust gas of the engine,
  • the grain tank may have a recess on a surface facing the engine room, and the first case and the second case may be disposed in the recess of the grain tank.
  • the first and second cases may be arranged side by side with the longitudinal direction of each of the first and second cases as the front-rear direction.
  • the exhaust inlet of the second case is connected to the exhaust outlet of the first case via a urea mixing pipe, and the first and second cases are connected between the first and second cases.
  • the urea mixing tubes may be arranged in parallel.
  • the combine further includes a fixing member that integrally fixes the first case and the second case coupled in parallel, and the fixing member is supported by a support frame that is erected from the traveling machine body.
  • the exhaust gas purification device may be fixed.
  • the exhaust gas purification device may be fixed by supporting the fixing member on the support frame, the engine frame, and the threshing device upper surface.
  • the exhaust gas purifying device since the exhaust gas purifying device is disposed at the rear of the engine room, the operator contacts the exhaust gas purifying device that is at a high temperature while the exhaust gas purifying device can be disposed at a position close to the engine. Can be prevented. In addition, exhaust heat from the engine room can be guided to the exhaust gas purification device, so the exhaust gas purification device can be placed in a high-temperature environment necessary for exhaust gas purification, and a high purification effect is maintained in the exhaust gas purification device. According to the present invention, since the urea water supply device is arranged at a position below the exhaust gas purification device, it can be recirculated to the urea water tank via the urea water supply device without circulating the urea water after the engine is stopped.
  • the capacity of the grain tank can be secured by effectively using the space around the grain tank and arranging the exhaust gas purification device, the urea water supply device, and the urea water tank.
  • the urea water supply device can be disposed near the exhaust gas purification device, the urea water pipe connecting the urea water supply device and the exhaust gas purification device can be configured to be short, and the residual urea water in the pipe can be suppressed. Crystallization of water can be prevented beforehand.
  • the shape of the grain tank is required to secure a space for the urea water supply device. There is no need to change. Therefore, not only can the capacity of the grain tank be secured, but the shape of the grain tank is not complicated, and its design is facilitated.
  • the urea water supply device is disposed between the exhaust gas purification device and the urea water tank, the urea water pipe from the urea water tank to the exhaust gas purification device can be configured to be short. Further, by arranging the fuel tank and the urea water tank at the rear of the traveling machine body, the supply ports of the fuel and the urea water can be easily identified. Furthermore, by arranging the urea water tank in the vicinity of the rotation axis of the grain tank, the difference in piping distance based on the opening and closing of the grain tank can be reduced, so the urea water piping hinders the opening and closing operation of the grain tank. It will never be.
  • the urea water tank below the exhaust gas purification device and the urea water supply device, the urea water remaining in the urea water pipe or the like can be recirculated to the urea water tank. Further, by disposing the urea water tank on the lower side, the water supply position of the urea water tank can be set downward, facilitating water supply work.
  • the urea water tank can be installed compactly by utilizing the space around the threshing device, and the urea water piping between the urea water supply device and the urea water tank installed on the side of the threshing device can be configured to be short.
  • the urea water tank can be formed with a large capacity, and the urea water tank can be replenished with urea water during maintenance work such as around the grain tank or around the engine.
  • the urea water tank can be installed compactly by utilizing the installation space of the fuel tank. Further, the urea water tank can be supported by utilizing the support structure of the fuel tank. Furthermore, replenishment workability can be improved by bringing the fuel supply unit and the urea water supply unit close to each other.
  • FIG. 25 is a side view showing a configuration when the fuel tank and the urea water tank shown in FIG. 24 are separated. It is a front view (left side view of a combine) which shows the 2nd modification of the fuel tank and urea water tank of the combine.
  • FIGS. 1 to 3 the overall structure of the combine according to the embodiment in which the diesel engine is mounted will be described.
  • the left side in the forward direction of the traveling machine body 1 is simply referred to as the left side
  • the right side in the forward direction is also simply referred to as the right side.
  • a traveling machine body 1 supported by a pair of left and right traveling crawlers 2 as traveling portions is provided.
  • a 6-row mowing device 3 that takes in while harvesting cereals is mounted by a single-acting lifting hydraulic cylinder 4 so as to be movable up and down around the mowing pivot fulcrum shaft 4 a.
  • the A threshing device 5 having a feed chain 6 and a grain tank (Glen tank) 7 for storing grains taken out from the threshing device 5 are mounted on the traveling machine body 1 side by side.
  • the threshing device 5 is arranged on the left side of the traveling machine body 1, and the grain tank 7 is arranged on the right side of the traveling machine body 1.
  • a grain discharge conveyor 8 that can be turned via a vertical take-out conveyor 8 a is provided at the rear part of the traveling machine body 1, and the grains inside the grain tank 7 are tracked from the spear spout 9 of the grain discharge conveyor 8. It is configured to be discharged to a cargo bed or container.
  • An operation cabin 10 is provided on the right side of the reaping device 3 and on the front side of the grain tank 7.
  • a cabin rotation fulcrum shaft 10a is provided in the lower front portion of the driving cabin 10, and the lower portion of the front surface of the operation cabin 10 is pivotally supported on the traveling machine body 1 via the cabin rotation fulcrum shaft 10a.
  • the operation cabin 10 is movably installed, and the operation cabin 10 is configured to rotate forward about the cabin rotation fulcrum shaft 10a.
  • the steering handle 11, the driving seat 12, the main transmission lever 15, the auxiliary transmission lever 16, the threshing clutch lever 17 for turning on and off the threshing clutch, and the cutting clutch lever for turning on and off the cutting clutch 18 are arranged.
  • a diesel engine 14 as a power source is disposed in the traveling machine body 1 below the driver seat 12.
  • the operation cabin 10 is provided with a step on which an operator gets on, a handle column provided with a steering handle 11, a lever column provided with the levers 15, 16, 17, 18 and the like.
  • left and right track frames 21 are arranged on the lower surface side of the traveling machine body 1.
  • the track frame 21 includes a drive sprocket 22 that transmits the power of the engine 14 to the traveling crawler 2, a tension roller 23 that maintains the tension of the traveling crawler 2, and a plurality of track rollers that hold the ground side of the traveling crawler 2 in a grounded state. 24 and an intermediate roller 25 that holds the non-grounded side of the traveling crawler 2 are provided.
  • the driving sprocket 22 supports the front side of the traveling crawler 2
  • the tension roller 23 supports the rear side of the traveling crawler 2
  • the track roller 24 supports the grounding side of the traveling crawler 2
  • the intermediate roller 25 supports the non-traveling crawler 2. Support the ground side.
  • a fuel tank 31 for storing fuel to be supplied to the engine 14 is disposed at the left rear portion of the traveling machine body 1, and diesel fuel is supplied into the fuel tank 31 from the outside of the threshing device 5 on the left side. It is configured to be replenishable. That is, the fuel tank 31 is installed on the traveling machine body 1 at a position below the sewage cutter 65 at the rear of the threshing device 5, and the fuel filler 32 (see FIGS. 1 and 2) is connected to the left side of the threshing device 5. It is possible to refuel from the outside of the machine.
  • a clipper-type cutting blade device 52 that cuts a stock of uncut grain culm planted on a farm field is provided on a cutting frame 51 connected to a cutting rotation fulcrum shaft 4 a of the cutting device 3. Is provided. In front of the reaping frame 51, a stalk raising apparatus 53 for 6 stalks that raises an uncut cereal cultivated in the field is arranged. Between the culm pulling device 53 and the front end (feed start side) of the feed chain 6, a culm transporting device 54 that transports the chopped culm harvested by the cutting blade device 52 is arranged.
  • a weeding body 55 corresponding to 6 strips for weeding the uncut cereal cedar is provided in front of the lower part of the cereal habit raising device 53.
  • the reaping device 3 is configured to continuously shave the uncut cereal grains planted in the field.
  • the threshing device 5 includes a handling cylinder 56 for threshing threshing, a rocking sorter 57 that sorts the cereals falling below the handling cylinder 56, and a tang fan 58.
  • a processing cylinder 59 for reprocessing the threshing discharge taken out from the rear part of the cylinder 56 and a dust exhaust fan 60 for discharging dust at the rear part of the rocking sorter 57 are provided.
  • the cereals conveyed by the culm conveying device 54 from the reaping device 3 are inherited by the feed chain 6, carried into the threshing device 5, and threshed by the handling cylinder 56.
  • first conveyor 61 for taking out the grain (the first thing) sorted by the rocking sorter 57 and two branches such as a grain with branches and branches.
  • a second conveyor 62 for taking out the articles is provided.
  • the rocking sorter 57 is configured such that the cereal grains leaked from the receiving net 67 stretched below the handling cylinder 56 are rocked and sorted (specific gravity sorting) by the feed pan 68 and the chaff sheave 69. . Grains that fall from the swing sorter 57 are removed by the sorting air from the tang fan 58 and fall to the conveyor 61 first.
  • the grain taken out first from the conveyor 61 is carried into the grain tank 7 via the cereal conveyor 63 and collected in the grain tank 7.
  • the rocking sorter 57 is configured to drop a second thing such as a grain with a branch infarction from the chaff sheave 69 onto the second conveyor 62 by rocking sorting.
  • a sorting fan 71 for wind-selecting the second object that falls below the chaff sheave 69 is provided.
  • the dust and swarf in the grain are removed by the sorting air from the sorting fan 71 and dropped onto the second conveyor 62.
  • the terminal portion of the second conveyor 62 is connected to the upper surface side of the feed pan 68 via the reduction conveyor 66, and is configured to return the second product to the upper surface side of the swing sorting plate 57 and re-sort. Yes.
  • an exhaust chain 64 and an exhaust cutter 65 are disposed on the rear end side (feed end side) of the feed chain 6.
  • the waste passed through the feed chain 6 from the rear end side of the feed chain 6 (the straw from which the grain has been threshed) is discharged to the rear of the traveling machine body 1 in a long state, or the rear part of the threshing device 5
  • the waste cutter 65 is discharged to the lower rear of the traveling machine body 1.
  • the grain tank 7 includes a purification device installation recess 7 a having a shape in which the front left side is cut out, and a grain discharge conveyor installation recess 7 b in a front-rear groove shape on the left side of the upper surface, The center of the left side surface is provided with a recessed portion 7c for setting up a cereal conveyor in a shape having a step along the vertical direction.
  • a space is provided behind the engine room 97, and an exhaust gas purifying device 74 is disposed.
  • the grain discharge conveyor 8 having its tip accommodated in the conveyor support is stored along the recess 7b for setting the grain discharge conveyor.
  • a cereal conveyor 63 is fixed to the groin conveyor installation recess 7c on the left side of the grain tank 7 along the cereal conveyor installation recess 7c, and is provided above the cereal conveyor installation recess 7c. Connected at the receiving port.
  • the grain discharge conveyor 8 is rotatably supported on the upper end side of the vertical take-out conveyor (vertical feed conveyor) 8 a, and is thrown on the feed end side of the grain discharge conveyor 8.
  • a mouth 9 is provided.
  • the transverse feed conveyor 8b is arranged in the front-rear direction at the bottom of the grain tank 7, and the lower end (base end) side of the vertical take-out conveyor 8a is connected to the rear end of the transverse feed conveyor 8b.
  • the machine outside bottom plate 7d and the machine inside bottom plate (not shown) are provided at the bottom of the grain tank 7, and the machine outside bottom plate 7d and the machine inside bottom plate are inclined toward the transverse feed conveyor 8b, so that the grains inside the grain tank 7 are provided.
  • the transverse feed conveyor 8b is extended along the front and back of the bottom of the grain tank 7, and conveys the grain flowing down along the bottom plate of the grain tank 7 to the rear vertical take-out conveyor 8a.
  • the vertical take-out conveyor 8a is connected to the rear end of the transverse feed conveyor 8b that protrudes from the rear end surface of the grain tank 7, and extends upward along the grain tank 7 along the rear end surface of the grain tank 7. .
  • the vertical take-out conveyor 8a is erected on the rear side of the grain tank 7 by connecting the lower end (base end) side to the transverse feed conveyor 8b and fixing the upper part to the rear end face of the grain tank 7. Further, the lower end of the vertical take-out conveyor 8a is supported on the traveling machine body 1 so that the grain tank 7 can be moved laterally around the axis line of the vertical take-out conveyor 8a toward the outside of the machine.
  • the rear surface is configured to be openable.
  • a rear cover 30 that covers the periphery of the vertical take-out conveyor 8a is detachably provided behind the grain tank 7, and a bottom cover body 165 is detachably provided on the outer surface of the machine-side bottom plate 7d of the grain tank 7. Yes.
  • a first case 75 diesel particulate filter (DPF) that removes particulate matter in the exhaust gas of the diesel engine 14 and urea selective catalytic reduction (SCR) that removes nitrogen oxides in the exhaust gas of the diesel engine 14
  • a second case 229 as a system is provided.
  • a diesel oxidation catalyst 79 and a soot filter 80 are installed in the first case 75.
  • an SCR catalyst 232 for urea selective catalyst reduction and an oxidation catalyst 233 are provided in the second case 229.
  • the first case 75 has an inlet side case 76 and an outlet side case 77.
  • a diesel oxidation catalyst 79 such as platinum that generates nitrogen dioxide (NO 2 ) is disposed inside the inlet case 76.
  • a soot filter 80 having a honeycomb structure for continuously oxidizing and removing the collected particulate matter (PM) at a relatively low temperature is disposed.
  • an SCR catalyst 232 and an oxidation catalyst 233 are arranged in series in the movement direction of the exhaust gas in the second case 229.
  • the SCR catalyst 232 and the oxidation catalyst 233 in the second case 229 are configured to reduce nitrogen oxides (NOx).
  • the first case 75 and the second case 229 are formed in a long cylindrical shape extending long in the left-right direction of the machine body.
  • a purification inlet pipe 81 for taking in the exhaust gas and a purification outlet pipe 82 for discharging the exhaust gas are provided on both cylindrical sides of the first case 75 (one end side and the other end side in the exhaust gas movement direction).
  • an SCR inlet pipe 236 for taking in the exhaust gas and an SCR outlet pipe 237 for discharging the exhaust gas are provided on both sides of the second case 29 (one end side and the other end side in the exhaust gas movement direction).
  • a supercharger 118 for forcibly sending air to the diesel engine 14 is disposed at the exhaust gas outlet (exhaust manifold 117) of the diesel engine 14.
  • the purification inlet pipe 81 is connected to the exhaust gas outlet side of the supercharger 118 via the exhaust connection pipe 119, and the exhaust gas of the diesel engine 14 is introduced into the first case 75.
  • a urea mixing pipe 239 for connecting the SCR inlet pipe 236 is connected to the purification outlet pipe 82, and exhaust gas is introduced from the first case 75 into the second case 229 through the urea mixing pipe 239.
  • the exhaust gas outlet side of the supercharger 118 and the exhaust connection pipe 119 are connected by a bellows-like connection pipe 98 that can be bent and extended, and the engine 14 vibration on the supercharger 118 side is connected to the exhaust connection pipe 119 side. It is constituted so that it is not transmitted to.
  • the purification outlet pipe 82 and the urea water injection section 240 of the urea mixing pipe 239 are bolted so as to be detachable by a pipe flange.
  • the inlet side case 76 and the outlet side case 77 are detachably connected by bolt fastening of a plurality of thick plate-like intermediate flange bodies 84, and the outlet side case 77 can be separated to perform disassembly maintenance of the soot filter 80. It is composed.
  • a tail pipe 83 is connected to the SCR outlet pipe 237 to open an exhaust gas outlet of the tail pipe 83 toward the upper side of the fuselage, and the exhaust gas of the diesel engine 14 (each cylinder) is supplied to the turbocharger.
  • urea water in a urea water tank 174 which will be described later, is mixed with the exhaust gas. 229 and introduced into the machine from the tail pipe 83.
  • particulate matter (PM) contained in the exhaust gas of the diesel engine 14 is collected by the soot filter 80 in the first case 75 and continuously oxidized by nitrogen dioxide (NO 2 ). Removed.
  • the content of carbon monoxide (CO) and hydrocarbon (HC) in the exhaust gas of the diesel engine 14 is reduced.
  • urea water is injected from the urea water injection nozzle body of the urea water injection unit 240 into the exhaust gas from the diesel engine 14 inside the urea mixing pipe 239, and the ammonia generated by hydrolysis is mixed.
  • the exhaust gas in the second case 229 is reduced in the content of nitrogen oxides (NOx) by the SCR catalyst 232 and the oxidation catalyst 233 for urea selective catalyst reduction.
  • the exhaust gas of the diesel engine 14 is purified by the first case 75 and the second case 229 and is discharged from the tail pipe 83 to the outside of the machine.
  • an engine room frame 91 as a body frame is erected on the traveling body 1 in front of the grain tank 7, and an engine room 97 is formed by the engine room frame 91.
  • the diesel engine 14 is mounted on the upper surface side of the traveling machine body 1, and the diesel engine 14 is installed inside the engine room 97.
  • cooling parts such as a water cooling radiator (not shown) and a cooling fan 115 are installed inside the engine room 97 on the side of the diesel engine 14.
  • the cooling fan 115 is configured to take in outside air from the outside right side of the combiner body toward a cooling component such as a radiator (not shown), while discharging the warm air of the diesel engine 14 toward the threshing device 5 side. Yes.
  • the right side, the back side, and the top side of the diesel engine 14 and the cooling parts are surrounded by the engine room frame 91, and the cooling fan 115 of the diesel engine 14 cools the engine room 97 from the outside right side of the engine room frame 91. While taking in outdoor air, the warm air after cooling the diesel engine 14 and the cooling parts is discharged toward the right side of the threshing device 5 as a working unit adjacent to the engine room frame 91 (engine room 97). is doing.
  • the engine room frame 91 includes a left square pipe-shaped column body 92, a right inverted U-shaped column body 93, and a square pipe-shaped horizontal frame 94 integrally fixed to both left and right column bodies 92, 93.
  • the square pipe-shaped horizontal frame 94 has one end connected to the upper end of the square pipe-shaped support body 92 and the other end connected to a square pipe-shaped frame 93 a fixed above the inverted U-shaped support body 93 and is fixed. .
  • rubber pressure contact legs (not shown) provided at the rear rear portion of the operation cabin 10 are brought into contact with the upper surfaces of the left and right cradles 96 of the horizontal frame 94 from above, so The rear part of the driving cabin 10 is supported so as to be able to contact and separate in the vertical direction.
  • the diesel engine 14 is installed in the engine room 97 formed by the bottom surface side of the operating cabin 10 and the engine room frame 91.
  • the conveyor support body 90 is provided in the upper end side of the left support
  • an air cleaner 123 for supplying outside air to the diesel engine 14 and a pre-cleaner 124 for taking the outside air into the air cleaner 123 are provided.
  • An air cleaner 123 is arranged on the right side of the exhaust gas purification device 74 in the upper surface of the engine room 97, and a pre-cleaner 124 is arranged on the right side in front of the grain tank 7 and above the engine room 97.
  • An air cleaner 123 is connected via 125. Combustion air is taken into the compressor case 118 a of the supercharger 118 of the diesel engine 14 from the precleaner 124 through the air cleaner 123.
  • the air cleaner 123 is positioned on the front right side of the exhaust gas purification device 74 by being fixed on the right side of the rear surface of the horizontal frame 94 of the engine room frame 91.
  • the turbocharger 118 is installed on the upper front side of the diesel engine 14 and is provided with a compressor case 118a containing a blower wheel on the right side and a turbine containing a turbine wheel on the left side.
  • a case 118b is provided.
  • the intake intake side provided at the right end of the compressor case 118 a communicates with the intake discharge side of the air cleaner 123 via the air supply pipe 120.
  • an exhaust outlet pipe 99 installed at the left end of the turbine case 118b is connected to an exhaust gas inlet (purification inlet pipe 81) of an exhaust gas purification device 74 as a post-treatment device via a bendable bellows-like exhaust introduction pipe 98. It connects with the exhaust connection pipe
  • the exhaust gas purification device 74 including the first case 75 and the second case 229, and the air cleaner 123 and the precleaner 124 are distributed to the left and right with respect to the engine 14 on the rear surface of the engine room frame 91.
  • the turbocharger 118 on the front surface of the engine 14 an air cleaner 123 and a pre-cleaner 124 serving as an intake system are disposed on the right compressor case 118a side, while an exhaust gas purification serving as an exhaust system is disposed on the left turbine case 119b side.
  • a device 74 is arranged.
  • the intake path and the exhaust path of the engine 14 including the supercharger 118 are divided and arranged on the left and right, the intake path and the exhaust path can be configured with short paths, and the exhaust path through which the high-temperature exhaust gas passes is also provided.
  • the intake path can be spaced apart.
  • the exhaust gas purification device 74 has a unit configuration in which a first case (DPF) 75 and a second case (SCR) 229 are connected in parallel by a case fixing body 231.
  • the first case 75 is detachably fixed with a plurality of fastening bands 85
  • the second case 229 is detachably fixed with a plurality of fastening bands 230. That is, both ends of the plurality of fastening bands 85 and 230 are bolted to the case fixing body 231 so that the first case 75 and the second case 229 are arranged in parallel on the case fixing body 231.
  • the exhaust gas purification device 74 is supported on the traveling machine body 1 by fixing the case fixing body 231 on which the first case 75 and the second case 229 are mounted on the support base 250.
  • the support base 250 is disposed below the purification device installation recess 7a provided on the front left side (threshing device 5 side) of the grain tank 7, and the exhaust gas purification device 74 is provided. It supports from the engine room 97 to the recessed part 7a for purification apparatus installation.
  • the support stand 250 is fixed at the right side of the machine housing frame right side of the threshing device 5, the front side is fixed at the engine room frame 97, and the right edge is erected from the traveling machine body 1.
  • the support column frame 251 the grain tank 7 is supported at an upper position in the recess 7 a for purifying device installation.
  • the front side of the support base 250 is connected to the horizontal frame 94 of the engine room frame 91 by connecting the other end of the bridging frame 252 having one end fixed on the back surface of the support base 250. 91.
  • the left edge of the support base 250 is connected to the right side of the upper surface of the threshing device 5 (the threshing upper surface frame on the upper right side of the threshing machine housing) via the assembly adjustment frame 253, thereby 5 is supported on the right side.
  • the right edge of the support base 250 is supported on the support frame 251 by being connected to the upper end of the support frame 251 via a horizontal frame 254.
  • the bridging frame 252 extends from the support base 250 toward the horizontal frame 94 at a position between the air cleaner 123 and the purification inlet pipe 81. Thereby, not only can a space for connection between the bellows-like exhaust introduction pipe 98 disposed below the horizontal frame 94 and the purification inlet pipe 81 of the first case 75 be secured, but also buffering with the air cleaner 123 can be prevented. Further, since the bridging frame 252 is disposed at a position between the intake path including the air cleaner 123 and the exhaust path connected to the first case 75, the influence of exhaust heat from the exhaust path on the air cleaner 123 is reduced. it can.
  • the grain tank 7 has a purification device installation recess 7a on the surface facing the engine room 97, and the purification device installation recess 7a of the grain tank 7 has a first An exhaust gas purifying device 74 by the case 75 and the second case 229 is arranged. Accordingly, the exhaust gas purification device 74 can be disposed between the grain tank 7 and the engine room 97 at a position close to the engine 14, but the worker is prevented from coming into contact with the exhaust gas purification device 74 that reaches a high temperature. it can. Further, since the exhaust heat from the engine room 97 can be guided to the exhaust gas purification device 74, the exhaust gas purification device 74 is disposed in a high temperature environment necessary for purification of the exhaust gas. The purification effect can be maintained.
  • the first case 75 and the second case 229 are horizontally supported from the threshing device 5 to the purification device installation recess 7a of the grain tank 7, and the first case 75 and the second case 229 are arranged in parallel.
  • the exhaust gas purification device 74 can be compactly arranged at a position higher than the engine 14, and high-temperature exhaust gas from the engine 14 is sent to the exhaust gas purification device 74.
  • the structure can be easily guided. Further, by disposing the exhaust gas purification device 74 at a high position, it is possible to prevent water generated due to condensation due to a temperature drop when the engine 14 is stopped from accumulating in the exhaust gas purification device 74.
  • the first case 75 and the second case 229 of the exhaust gas purification device 74 are connected in parallel by the case fixing body 231 and the urea mixing pipe is connected to the exhaust outlet of the first case 75.
  • the exhaust inlet of the second case 229 is connected via the 239, and the urea mixing pipe 239 is disposed between the first and second cases 75, 229 in parallel with the first and second cases 75, 229, respectively.
  • the exhaust gas purification device 74 can be compactly installed inside the purification device installation recess 7a in front of the grain tank 7 by configuring the first case, the second case, and the urea mixing tube in an integral unit structure. Therefore, while the installation space of the exhaust gas purification device 74 can be easily secured, the purification device installation recess 7a of the grain tank 7 can be made narrow so that the grain storage capacity of the grain tank 7 can be secured.
  • each of the first and second cases 75 and 229 of the exhaust gas purification device 74 is the front-rear direction, and the first and second cases 75 and 229 are juxtaposed side by side. It is arranged on the side. While disposing the first case 75 on the threshing device 5 side and disposing the second case 229 on the back side of the purifying device installation recess 7a of the grain tank 7, the second case 229 and the urea mixing tube 239 are placed on the grain.
  • the first case 75 can be disposed at a position close to the exhaust port of the engine 14 at the same time as it can be disposed so as to be covered with the tank 7.
  • the exhaust path from the engine 14 to the first case 75 is configured as a short path, and the regeneration process in the first case 75 can be maintained with high performance.
  • the second case 229 and the urea mixing pipe 239 can be disposed in a high temperature environment surrounded by the grain tank 7 behind the engine room 97, and at the same time, the urea water is prevented from freezing, and at the same time, the purification ability in the second case 229 is enhanced. Can be maintained.
  • a urea water tank 174 that stores urea water (urea aqueous solution for selective catalyst reduction) and a urea water supply device 175 that supplies urea water to the urea water injection unit 240 of the urea mixing pipe 239 are provided.
  • the urea water supply device 175 supplies the urea water in the urea water tank 174 to the urea water injection unit 240 of the urea mixing pipe 239, whereby the urea water is supplied from the urea water injection valve 178 of the urea water injection unit 240. Spray inside.
  • the urea water supply device 175 includes a urea water pump 171 that pumps the urea aqueous solution in the urea water tank 174 and a urea water supply electric motor 172 that drives the urea water pump 171.
  • the urea water supply device 175 is connected to the urea water injection valve 178 of the urea water injection unit 240 via the urea water injection pipe 177 and is connected to the urea water tank 174 with the urea water supply pipe 179 and the urea water return pipe 180. Is connected.
  • an engine controller 181 that executes fuel injection control of the diesel engine 14 and the like, and a urea injection controller 182 that controls the urea water supply device 175 or the urea water injection valve 178 are provided.
  • the urea water injection valve 178 is attached to the urea water injection unit 240 of the urea mixing pipe 239, and the urea aqueous solution is sprayed from the urea water injection valve 178 into the urea mixing pipe 239.
  • the urea water supplied into the urea mixing pipe 239 is configured to be mixed as ammonia in the exhaust gas from the first case 75 to the second case 229.
  • the urea water temperature sensor 183 of the urea water tank 174 and the urea water amount sensor 184 of the urea water tank 174 are connected to the urea injection controller 182, and the engine controller 181 and the urea injection controller 182 are connected to the diesel engine 14.
  • the urea water is supplied into the urea mixing pipe 239 at an appropriate time according to the operating condition.
  • the urea water supply device 175 is disposed between the threshing device 5 and the grain tank 7 and at a height position below the exhaust gas purification device 74. That is, the urea water supply device 175 is fixed at a position lower than the urea water injection valve 178. Therefore, after the urea water injection is stopped, the urea water remaining in the urea water injection pipe 177 or the like may be recirculated to the urea water supply device 175 due to the height difference between the urea water supply device 175 and the urea water injection valve 178. it can.
  • the exhaust gas purification device 74 is installed between the threshing device 5 and the grain tank 7 behind the engine room 97, and urea water supply for supplying urea water to the exhaust gas purification device 74 is provided.
  • the device 175 is provided below the exhaust gas purification device 74. Therefore, since the exhaust gas purification device 74 and the urea water supply device 175 can be arranged behind the engine room 97, freezing of the urea water can be prevented using the exhaust heat from the engine 14, and the quality deterioration of the urea water can be suppressed.
  • an exhaust gas purification device 74 is disposed at a position sandwiched between the engine room 97 and the grain tank 7 and is sandwiched between the grain tank 7 and the threshing device 5.
  • the urea water supply device 175 is disposed at the position.
  • the urea water supply device 175 is fixed to the right side of the threshing device 5 (the grain tank 7 side) and is sandwiched between the whipping conveyor 63 and the reduction conveyor 66. Yes. Thereby, since the urea water supply apparatus 175 can be arrange
  • the pipe (urea water injection pipe 177) can be configured to be short.
  • the exhaust gas purification device 74 and the urea water supply device 175 can be arranged in the exhaust heat air flow path formed between the threshing device 5 and the grain tank 7 behind the engine room 97. Therefore, the SCR system can be operated under an optimum temperature environment, such as prevention of freezing of urea water.
  • the urea water supply device 175 is fixed at a position on the front side of the cereal conveyor 63 and below the reduction conveyor 66. That is, the urea water supply device 175 is fixed to the right side surface of the threshing device 5, and is disposed below the reduction conveyor 66 and at a position between the red pepper fan 58 and the first conveyor 61. That is, the urea water supply device 175 is disposed at a position surrounded by the cereal conveyor 63 and the reduction conveyor 66 that intersect each other, and the cover body 58 a that covers the right suction port of the red pepper fan 58.
  • the grain tank 7 is installed without a mashing conveyor 63 and a reduction conveyor 66 without buffering. Therefore, the urea water supply device 175 can be fixed to the side of the threshing device 5 without buffering the grain tank 7 by arranging the urea water supply device 175 in the area surrounded by the cereal conveyor 63 and the reduction conveyor 66, and the grain It is not necessary to change the shape of the tank 7 and the capacity of the grain tank 7 can be secured.
  • the urea water supply device 175 may be installed at a position on the front side of the cereal conveyor 63 and below the reduction conveyor 66, and as indicated by a virtual line, By disposing at the same height position, it is disposed at a height position below the exhaust gas purification device 74.
  • the urea water supply device 175 may be installed on either the upper side or the lower side of the reduction conveyor 66 on the rear side from the cereal conveyor 63. Furthermore, in the case where the threshing conveyor 63 and the reduction conveyor 66 are arranged side by side on the right side surface of the threshing apparatus 5, a urea water supply device 175 is provided between the threshing conveyor 63 and the reduction conveyor 66. It may be installed.
  • the urea water tank 174 is disposed behind the grain tank 7 while the fuel tank 31 is disposed behind the threshing apparatus.
  • the fuel supply port 32 of the fuel tank 31 protrudes toward the left side
  • the water supply port 174a of the urea water tank 174 protrudes toward the right side.
  • the urea water tank 174 is provided with a water supply port 174a from the outside of the machine toward the rear (diagonally to the right), and is disposed vertically between the vertical take-out conveyor 8a and the rear cover 30.
  • the water supply port 174a protrudes from an opening (not shown) of the rear cover 30, and is configured to be accessible to the water supply port 174a from the outside of the machine.
  • the urea water tank 174 is arranged vertically with the longitudinal direction thereof being the vertical direction, and is fixed below the right edge (machine outer edge) of the rear end surface of the grain tank 7. Is done. Then, in order to project the water supply port 174a toward the right side opposite to the fuel supply port 32 directed to the left side of the traveling machine body 1, when performing the fuel supply operation to the fuel tank 31 or the water supply operation to the urea water tank 174, In addition, misjudgment between the oil supply port 32 and the water supply port 174a can be prevented.
  • the water supply port 174a protrudes obliquely rearward, the amount of wraparound of the water supply hose from the oil supply port 32 to the water supply port 174a can be reduced, and the oil supply operation and the water supply operation can be performed simultaneously.
  • a urea water tank 174 is vertically arranged around the vertical take-out conveyor (vertical feed conveyor) 8a behind the grain tank 7.
  • the urea water tank 174 is disposed inside the rear cover 30 and is arranged in parallel with the vertical take-out conveyor 8a.
  • the urea water tank 174 is connected to the grain tank 7 via a urea water supply pipe 179 and a urea water return pipe 180 that are piped between the threshing device 5 and the grain tank 7. It connects with the urea water supply apparatus 175 arrange
  • the exhaust gas purification device 74 is disposed around the front of the grain tank 7, the urea water supply device 175 is disposed on the side of the grain tank 7, and the urea water tank 174 is disposed on the grain tank 7. Arranged at the rear. That is, since the urea water supply device 175 is disposed between the exhaust gas purification device 74 and the urea water tank 174, the urea water pipes 177, 179, 180 from the urea water tank 174 to the exhaust gas purification device 74 can be configured to be short. .
  • the grain tank 7 is configured such that the rear part of the grain tank 7 is supported on the vertical take-out conveyor 8a, and can be moved laterally around the axis line of the vertical take-out conveyor 8a.
  • the right side surface of the threshing device 5 and the rear surface of the engine room 97 can be opened. Since the urea water tank 174 is installed in the vicinity of the vertical take-out conveyor 8 a, the connection portion between the urea water supply pipe 179 and the urea water return pipe 180 can be arranged near the rotation fulcrum of the grain tank 7.
  • the urea water supply pipe 179 and the urea water return pipe 180 are piped by bypassing the rear surface from the left side surface of the grain tank 7. Therefore, the pipe distance from the urea water tank 174 to the urea water supply device 175 is shortened when the grain tank 7 is opened compared to when the grain tank 7 is stored, and the difference in the pipe distance can be reduced by opening and closing the grain tank 7. .
  • the exhaust gas purification device 74 and the urea water supply device 175 behind the engine room 97 can be easily accessed, while the grain tank 7 is stored.
  • the exhaust gas purification device 74 and the urea water supply device 175 are inaccessible. Therefore, when storing the grain tank 7, it becomes impossible to contact the exhaust gas purification device 74 and the like that become hot during operation, so that the safety of the operator can be ensured and the grain can be used in various operations such as maintenance.
  • the exhaust gas purification device 74 and the urea water supply device 175 can be easily accessed.
  • the exhaust gas purification device 74 is disposed in the front periphery of the grain tank 7, the urea water supply device 175 is disposed on the side of the grain tank 7, and the urea water tank 174 is disposed. It is arranged behind the grain tank 7.
  • the fuel tank 31 and the urea water tank 174 are arranged on the left and right behind the traveling machine body 1 so that the fuel supply port 32 and the urea water supply port 174a can be easily distinguished from each other.
  • the urea water tank 174 is fixed to the bottom plate of the grain tank 7 in a horizontal position, and its rear end portion protrudes rearward from the grain tank 7. That is, the rear end portion of the urea water tank 174 is disposed in the vicinity of the connecting portion between the vertical take-out conveyor 8a and the transverse feed conveyor 8b.
  • the rear end portion of the urea water tank 174 is arranged on the left side of the grain tank 7 via the urea water supply pipe 179 and the urea water return pipe 180 that are piped between the threshing device 5 and the grain tank 7. And connected to the urea water supply device 175.
  • a tank support 173 is provided on the outer surface of the outside bottom plate 7 d of the grain tank 7, and a urea water tank is provided on the outside surface of the outside bottom plate 7 d of the grain tank 7 via the tank support 173.
  • 174 is supported.
  • a bottom cover body 165 is detachably provided on the outer surface of the machine tank bottom plate 7 d of the grain tank 7, and a urea water tank 174 is disposed on the machine inner side of the bottom cover body 165.
  • the water supply port 174a is arranged facing the right side (the outside of the machine).
  • the rear cover 30 is provided with an opening, and the water supply port 174a of the urea water tank 174 protrudes outward from the machine, thereby facilitating water supply work from outside the machine.
  • the rear end portion of the urea water tank 174 connected to the urea water supply pipe 179 and the urea water return pipe 180 is disposed in the vicinity of the rotation fulcrum of the grain tank 7.
  • the rear end portion of the urea water tank 174 is arranged on the left side of the grain tank 7 via the urea water supply pipe 179 and the urea water return pipe 180 that are piped between the threshing device 5 and the grain tank 7. And connected to the urea water supply device 175. Therefore, the pipe distance from the urea water tank 174 to the urea water supply device 175 is shortened when the grain tank 7 is opened compared to when the grain tank 7 is stored, and the difference in the pipe distance can be reduced by opening and closing the grain tank 7. .
  • the urea water supply device 175 is disposed between the threshing device 5 and the grain tank 7 and at a height position below the exhaust gas purification device 74. Further, the urea water supply device 175 is disposed at a position higher than the urea water tank 174 and is offset in the front-rear direction (or the left-right direction). That is, the urea water supply device 175 is fixed at a position higher than the urea water tank 174 and lower than the urea water injection valve 178.
  • the urea water injection valve 178 By disposing the urea water injection valve 178 at a higher position than the urea water supply device 175, after the urea water injection stops, the remaining urea water is removed due to the height difference between the urea water supply device 175 and the urea water injection valve 178. Then, it can be refluxed to the urea water supply device 175.
  • the urea water supply device 175 By disposing the urea water supply device 175 at a higher position than the urea water tank 174, the urea water remaining due to the difference in height between the urea water tank 174 and the urea water supply device 175 after the injection of urea water is stopped. Can be recirculated to the urea water tank 174. Therefore, as shown in FIG.
  • the urea water supply device 175 is arranged at a height position between the exhaust gas purification device 74 and the urea water tank 174, and is circulated by the urea water supply device 175 after the engine is stopped.
  • the urea water can be recirculated to the urea water tank 174 without causing the urea water return pipe 180 to be omitted.
  • a third embodiment of the present invention will be described with reference to FIGS.
  • the combine in this embodiment differs from the first and second embodiments in that a urea water tank 174 is disposed in the lower space of the threshing device 5.
  • the other configuration is the same as that of the combine in the first and second embodiments, and thus detailed description thereof is omitted, and the configuration related to the urea water tank 174 will be described below.
  • a urea water tank 174 is disposed at the lower part of the threshing machine frame 36 constituting the frame of the threshing device 5.
  • the urea water tank 174 can be installed in a compact manner by utilizing the space below the threshing machine frame 36, and the urea water tank 174 is formed in a large capacity so that maintenance work such as around the grain tank 7 or around the engine 14 can be performed.
  • the urea water tank 174 can be configured to be replenished with urea water.
  • the urea water supply device 175 is arranged on the right side surface (the grain tank 7 side) of the threshing device 5, and a piping path connecting the urea water tank 174 and the urea water supply device 175 (
  • the urea water supply pipe 179 and the urea water return pipe 180) can be configured to be short. Accordingly, the piping path from the exhaust gas purifying device 74 to the urea water tank 174 can be shortened, the urea water can be smoothly pumped through the pipes 177, 179, 180, and urea water based on recrystallization or freezing can be used. Quality degradation can be suppressed.
  • the exhaust gas purification device 74 is disposed between the threshing device 5 and the grain tank 7, the exhaust gas purification device 74, the urea water supply device 175, and the urea water are utilized by utilizing the space around the threshing device 5.
  • the tank 174 can be arranged in a compact manner, and the maintainability and assembly of the SCR system can be improved.
  • the urea water supply device 175 is fixed at a position higher than the urea water tank 174 and lower than the exhaust gas purification device 74. Therefore, after the urea water injection is stopped, the remaining urea water can be returned to the urea water tank 174 due to the height difference between the urea water tank 174 and the urea water supply device 175. Therefore, after the engine is stopped, the urea water can be recirculated to the urea water tank 174 without being circulated by the urea water supply device 175, and the urea water return pipe 180 can be omitted.
  • a urea water tank 174 is arranged on the lower surface side of the tang 37 in the lower part of the threshing machine frame 36. That is, by installing the urea water tank 174 at a position between the Kara fan 58 and the first conveyor 61, the urea water tank 174 is placed at a position offset on the lower side of the urea water supply device 175 in the left-right direction. Can be placed.
  • the urea water supply pipe 179 and the urea water return pipe 180 connected to the urea water tank 174 are arranged along the right side surface of the threshing device 5 vertically and along the lower side of the threshing machine frame 36 sideways. In this way, piping can be made short.
  • the urea water tank 174 can be disposed in the vicinity of the tang fan 58 that induces exhaust heat from the engine 14, and by using the exhaust heat from the engine 14, freezing and recrystallization of the urea water can be prevented.
  • the urea water tank 174 may be installed on the lower surface side of the first rod 38 or the second rod 39. That is, the urea water tank 174 may be disposed at a position between the first conveyor 61 and the sorting fan 71, or the urea water tank 174 may be disposed at a position behind the second conveyor 62. Thereby, the urea water tank 174 can be installed compactly using the space below the threshing machine frame 36.
  • the combine in this embodiment has arrange
  • the other configuration is the same as that of the combine in the third embodiment, and therefore detailed description thereof is omitted, and the configuration related to the urea water tank 174 will be described below.
  • a urea water tank 174 for storing urea water is disposed inside the side cover 41 that covers the left side of the threshing device 5.
  • the urea water tank 174 can be installed compactly by utilizing the space inside the side cover 41, and a piping path (urea) connecting the urea water supply device 175 disposed on the right side of the threshing device 5 (the grain tank 7 side)
  • the water supply pipe 179 and the urea water return pipe 180) can be configured to be short.
  • a urea water tank 174 is arranged on the left side of the fuel tank 31 in the side cover 41.
  • the urea water tank 174 is configured in an L shape that covers the rear side from the lower side of the left side surface of the fuel tank 31.
  • the urea water tank 174 is configured to surround the lower side and the rear side of the fuel filler port 32 projecting from the upper left side of the fuel tank 31 toward the outside of the machine (left side).
  • the urea water tank 174 is provided in the front-rear direction on the left side of the fuel tank 31 and has a shape in which a rear portion thereof protrudes upward.
  • the urea water tank 174 is provided with a water supply port 174a projecting toward the outer side (left side) of the rearward upward projecting portion.
  • the urea water tank 174 may be configured integrally with the side cover as in the modification shown in FIG.
  • the urea water tank 174 is provided with a tank portion 174c for storing urea water on the back side (fuel tank 31 side) of the side cover portion 174b that covers the entire left side surface of the fuel tank 31, while the side cover A water supply port 174a communicating with the tank portion 174c is provided on the front side of the portion 174b.
  • an opening 174d is provided in the non-installation area of the tank portion 174c of the side cover portion 174b, and the fuel filler port 32 of the fuel tank 31 is inserted through the opening 174d.
  • the connecting portion between the tank portion 174c, the urea water supply pipe 179, and the urea water return pipe 180 is configured to be detachable with a quick coupler or the like, so that the side cover integrated urea water tank 174 can be removed. .
  • the urea water tank 174 work such as maintenance and cleaning around the fuel tank 31 is facilitated, and by removing the urea water tank 174 and storing it, the urea water can be stored in an optimum temperature environment. Can manage.
  • a fifth embodiment embodying the present invention will be described with reference to FIGS.
  • the combine in the present embodiment differs from the third embodiment in that the urea water tank 174 behind the grain tank 7 is placed on the fuel tank 31.
  • the other configuration is the same as that of the combine in the third embodiment, and therefore detailed description thereof is omitted, and the configuration related to the urea water tank 174 will be described below.
  • the urea water tank 174 is overlapped with the fuel tank 31 and arranged below the threshing device 5, and the water supply port 174 a of the urea water tank 174 and the oil supply port 32 of the fuel tank 31 are connected to the threshing device 5. Projecting toward the outside of the machine. Thereby, since each supply port (fuel supply port 32 and water supply port 174a) of the fuel tank 31 and the urea water tank 174 can be arrange
  • urea water is placed behind the threshing device 5 and in the lower rear portion of the threshing machine frame 36 (second basket 39) and the rocking sorter 57 constituting the frame of the threshing device 5.
  • the urea water tank 174 to be stored is disposed so as to overlap the fuel tank 31.
  • a urea water tank 174 and a fuel tank 31 are arranged vertically on the inside of the side cover 41 that covers the left side of the threshing device 5, and the oil supply port 32 and the water supply port 174 a are connected to the outside of the machine from the opening of the side cover 41. Protruding.
  • the urea water tank 174 can be installed in a compact manner by utilizing the space behind the threshing device 5, and the piping path that connects the urea water supply device 175 disposed on the right side surface (the grain tank 7 side) of the threshing device 5.
  • Urea water supply pipe 179 and urea water return pipe 180 can be configured to be short.
  • the upper portion of the fuel tank 31 is tapered (a shape in which the front-rear width becomes narrower upward), and the urea water tank 174 is formed in a substantially inverted U shape.
  • the urea water tank 174 is installed on the fuel tank 31 such that the urea water tank 174 is shaped to match the upper surface of the fuel tank 31 so that the upper surface of the fuel tank 31 is covered with the lower surface of the urea water tank 174.
  • the urea water tank 174 is mounted on the fuel tank 31 so as to sandwich the fuel tank 31 forward and backward, and the urea water tank 174 is fixed on the fuel tank 31.
  • the urea water tank 174 is configured to be detachable from the fuel tank 31. At this time, the urea water tank 174 may be configured to be detachable by sliding the urea water tank 174 in the left-right direction with respect to the fuel tank 31, or the urea water tank 174 may be configured in the up-down direction with respect to the fuel tank 31. It may be fitted and detached. At this time, the connecting portion between the urea water tank 174, the urea water supply pipe 179, and the urea water return pipe 180 is configured to be detachable with a quick coupler or the like.
  • the urea water tank 174 by configuring the urea water tank 174 to be separable from the fuel tank 31, not only can the water be easily supplied by replacing the urea water tank 174, but the urea water tank 174 can be removed and stored after the work is completed. Prevents quality degradation.
  • the urea water tank 174 is disposed below the fuel tank 31, and the urea water tank 174 is disposed so as to be surrounded by the fuel tank. Since the fuel tank 31 surrounds the urea water tank 174, the fuel tank 31 functions as a heat insulation layer, and the heat retention effect in the urea water tank 174 can be improved, and the urea water stored in the urea water tank 174 is deteriorated. Can be suppressed.
  • a notch 31a is provided on the lower side of the left side of the fuel tank 31 (side surface provided with the fuel filler port 32), and a urea water tank 174 is fitted into the notch 31a.
  • the urea water tank 174 has a shape conforming to the cutout portion 31a of the fuel tank 31, and is disposed on the lower left side of the fuel tank 31.
  • the cutout portion 31a of the fuel tank 31 causes the upper surface of the urea water tank 174 and The right side is covered.
  • the fuel tank 31 is fixed to the traveling machine body 1 by a tank support (support belt) 33.
  • the fuel tank 31 is fixed by the tank support 33 at a position overlapping the storage position (formation position of the notch 31a) of the urea water tank 174, so that the urea water tank 174 is also driven by the tank support 33. 1 can be supported and fixed.
  • the tank support 33 is installed so that the tank support 33 is hung on the left end portion of the urea water tank 174, the urea water tank 174 is removed from the fuel tank 31 without removing the tank support 33. Can be separated.
  • the urea water tank 174 is disposed below the fuel tank 31, and the urea water tank 174 is disposed so as to be surrounded by the fuel tank, and then the urea water tank Let 174 be a shape having a convex portion 174x that protrudes above the water supply port 174a.
  • the convex portion 174x By providing the convex portion 174x extending to the upper side from the water supply port 174a, it is possible to secure a space where the urea water is not filled in a part of the convex portion 174x.
  • the volume of the urea water in the urea water tank 174 is prevented from exceeding the volume of the urea water tank 174, and the urea water tank 174 is prevented from being damaged. it can.
  • the left end portion of the urea water tank 174 has a shape protruding from the left end portion of the fuel tank 31 toward the outside of the machine (left side). That is, when the urea water tank 174 is fitted into the notch 31 a of the fuel tank 31, the left side surface of the urea water tank 174 is located on the left side of the left side surface of the fuel tank 31. Then, at the left end portion of the urea water tank 174, a convex portion 174x that protrudes above the water supply port 174a is provided at a position offset with respect to the fuel supply port 32 of the fuel tank 31, and the upper surface of the convex portion 174x is provided. Is provided with a breather 174y so that outside air can be taken in.
  • the convex portion 174x is not filled with water.
  • the upper part of the convex part 174x is always filled with air through the breather 174y. Therefore, even when the urea water in the urea water tank 174 is frozen, the volume increase of the frozen urea water can be accommodated in the space above the convex portion 174x, and the volume of the urea water tank 174 may be exceeded. Therefore, the urea water tank 174 can be prevented from being damaged.
  • a sixth embodiment embodying the present invention will be described with reference to FIGS.
  • the combine in this embodiment differs from the previous embodiments in that a urea water tank 174 is disposed between the front surface of the grain tank 7 and the rear surface of the engine room 97 and below the exhaust gas purification device 74.
  • the other configuration is the same as that of the combine in each of the previous embodiments, and thus detailed description thereof is omitted, and the configuration related to the urea water tank 174 will be described below.
  • a urea water tank 174 is disposed between the front surface of the grain tank 7 and the rear surface of the engine room 97 and below the exhaust gas purification device 74.
  • the urea water tank 174 is arranged with a water supply port 174a provided above the tank facing the outside of the machine (right side), and a urea aqueous solution is introduced into the urea water tank 174 from the outside of the machine between the grain tank 7 and the engine room 97. Is configured to be replenishable.
  • the urea water tank 174 is disposed on the right side of the threshing device 5 and is surrounded by the engine room frame 91, the right side surface of the threshing device 5, and the front surface of the grain tank 7.
  • the urea water tank 174 is disposed at a position for guiding the heated air passing through the engine room 97, the urea water tank 174 can be maintained at an appropriate temperature, and freezing of the stored urea water can be prevented. Furthermore, in order to arrange the fuel tank 31 and the urea water tank 174 on the left and right of the traveling machine body 1 and to project the water supply port 174a toward the right side opposite to the fuel filler port 32 toward the left side of the traveling machine body 1, When performing a fuel supply operation to the fuel tank 31 or a water supply operation to the urea water tank 174, erroneous determination between the fuel supply port 32 and the water supply port 174a can be prevented.
  • the urea water supply device 175 is disposed between the threshing device 5 and the grain tank 7 at a height position below the exhaust gas purification device 74. Further, the urea water supply device 175 is disposed at a position higher than the urea water tank 174 and is offset in the front-rear direction (or the left-right direction). That is, the urea water supply device 175 is fixed at a position higher than the urea water tank 174 and lower than the urea water injection valve 178.
  • the urea water remaining in the urea water injection pipe 177 or the like may be recirculated to the urea water supply device 175 due to the height difference between the urea water supply device 175 and the urea water injection valve 178. it can.
  • the urea remaining in the urea water supply device 175, the urea water supply pipe 179, the urea water return pipe 180, and the like due to the height difference between the urea water tank 174 and the urea water supply device 175 after the urea water injection is stopped. Water can also be refluxed to the urea water tank 174. Further, since the urea water tank 174 and the urea water supply device 175 are offset in the horizontal direction, maintenance work such as replacement of the filter of the urea water supply device 175 located higher than the urea water tank 174 is facilitated.
  • the grain tank 7 has a concave portion 7a for purification device installation with a shape in which the left side of the front face is cut out, a concave portion 7b for grain discharge conveyor installation with a groove shape in the front-rear direction on the left side of the upper surface, and a left side surface. It is provided with a cereal conveyor installation recess 7c having a shape with a step in the center in the vertical direction.
  • a space is provided behind the engine room 97, and an exhaust gas purification device 74 and a urea water tank 174 are disposed.
  • the grain discharge conveyor 8 having its tip accommodated in the conveyor support is stored along the recess 7b for setting the grain discharge conveyor.
  • a cereal conveyor 63 is fixed to the groin conveyor installation recess 7c on the left side of the grain tank 7 along the cereal conveyor installation recess 7c, and is provided above the cereal conveyor installation recess 7c. Connected at the receiving port.
  • the grain tank 7 is configured such that the rear part of the grain tank 7 is supported on the vertical take-out conveyor 8a, and can be moved laterally around the axis line of the vertical take-out conveyor 8a toward the outside of the machine.
  • the right side surface of the threshing device 5 and the rear surface of the engine room 97 can be opened. Therefore, the operator can easily access the SCR system by the exhaust gas purification device 74, the urea water tank 174, and the urea water supply device 175 behind the engine room 97 when the worker opens the grain tank 7 by lateral movement.
  • the SCR system is inaccessible.
  • FIG. 35 is an explanatory diagram of a first modification of the exhaust gas purification device 74 (first case 75 or second case 229) mounting structure.
  • first case 75 of the exhaust gas purification device 74 is arranged on the threshing device 5 side.
  • the case 75 and the second case 229 are supported by the case fixing body 231 so as to be adjacent to each other on the left and right, and the second case is disposed on the threshing device 5 side.
  • the long cylindrical first case 75, the second case 229, and the urea mixing tube 239 are supported in the front-rear direction, and the tail pipe 83 is disposed behind the second case 229 on the right side of the threshing device 5. Place and connect to SCR outlet tube 237.
  • the first case 75 and the second case 229 are juxtaposed side by side with the longitudinal directions of the first case 75 and the second case 229 of the exhaust gas purification device 74 being the front-rear direction.
  • the second case 229 is arranged on the threshing device 5 side. That is, in the first modified example, the second case 229 is arranged on the threshing device 5 side, while the first case 75 is arranged in the back (right back) of the purification device installation recess 7a of the grain tank 7,
  • One case 75 can be disposed so as to be surrounded by the grain tank 7 and the second case 229.
  • the 1st case 75 can be arrange
  • FIG. 36 is an explanatory diagram of a second modification of the exhaust gas purification device 74 (first case 75 or second case 229) mounting structure.
  • first case 75 and the second case 229 that are long in the front and rear are arranged side by side, but in the second modification shown in FIG. 36, they are connected in parallel.
  • the first case 75 and the second case 229 thus formed are supported by the case fixing body 231 so as to be adjacent to each other in the front-rear direction, and the urea mixing tube 239 is interposed between the cylindrical first case 75 and the second case 229 that are long on the left and right. Was placed.
  • the first case 75 is disposed on the front side of the second case 229 so as to be on the engine 14 side.
  • the second case 229 is arranged so that the SCR outlet pipe (exhaust outlet) 237 is on the left side, and the tail pipe 83 is arranged behind the second case 229 on the right side of the threshing device 5, and the SCR outlet pipe 237 is disposed.
  • the tail pipe 83 is connected.
  • the first case 75 and the second case 229 are juxtaposed in the front-rear direction, with the longitudinal directions of the first case 75 and the second case 229 of the exhaust gas purification device 74 being the left-right direction.
  • the first case 75 is arranged on the engine room 97 side. That is, in the second modification, the first case 75 is disposed on the engine 14 side, while the second case 229 is disposed on the grain tank 7 side.
  • the first case 75, the second case 229, and the urea mixing tube 239 can be installed compactly along the front surface of the grain tank 7, but the SCR outlet of the second case 229 is provided.
  • the tail pipe 83 on the right side of the threshing device 5 can be easily connected to the pipe (exhaust outlet) 237. Therefore, the 1st case 75 can be arrange
  • the purification inlet pipe 81 is provided on the right end side of the first case 75
  • the purification outlet pipe 82 is provided on the left end side of the first case 75
  • the right end side of the second case 229 is provided.
  • the SCR inlet pipe 236 is provided
  • the SCR outlet pipe 237 is provided on the left end side of the second case 229.
  • a cylindrical urea mixing tube 239 elongated in the left and right directions is extended in parallel between the first case 75 and the second case 229 that are long in the left and right directions and above the cases 75 and 229. ing.
  • the purification inlet pipe 81 is provided on the left end side of the first case 75
  • the purification outlet pipe 82 is provided on the right end side of the first case 75
  • the SCR inlet pipe 236 is provided on the left end side of the second case 229.
  • the SCR outlet pipe 237 may be provided on the right end side of the second case 229, and the connection from the engine 14 to the purification inlet pipe 81 of the first case 75 may be configured to be short.
  • a heat shield member may be disposed on the outer periphery of the exhaust gas purification device 74 in order to reduce the influence on the peripheral parts due to heat radiation from the exhaust gas purification device 74 serving as a heat source.
  • the heat from the exhaust gas purification device 74 is shut off by covering the upper surface and the left side surface (threshing device 5 side) of the exhaust gas purification device 74 with the purification device cover body 261 serving as a heat shield. While reducing the thermal influence on the threshing device 5, the temperature drop around the exhaust gas purification device 74 is suppressed. Further, as shown in FIG.
  • the purification device cover body 261 has a large number of holes opened in the side surface thereof, thereby suppressing the retention of air heated around the exhaust gas purification device 74, and the grain. It is possible to prevent the tank 7 from being excessively heated by the exhaust gas purification device 74.
  • the lock pin fixing frame 160 is extended from the upper right side of the machine housing frame of the threshing device 5, and the lock pin 161 for fixing and supporting the grain tank 7 is fixed to the upper end of the lock pin fixing frame 160.
  • a lock arm 162 is attached to the front surface of the grain tank 7, and when the grain tank 7 is stored in the storage position of the traveling machine body 1, the lock arm 162 is engaged with the lock pin 161.
  • a lock release lever (not shown) is attached to the front surface of the grain tank 7, the lock release lever is connected to the lock arm 162 via the linkage rod 163, and the lock arm 161 is operated from the lock pin 161 by the operation of the lock release lever. Is configured to be removable.
  • the rear part of the grain tank 7 is supported on the vertical take-out conveyor 8a, and by moving the lock arm 162 of the lock release lever, the grain tank 7 is moved laterally around the axis of the vertical take-out conveyor 8a toward the outside of the machine.
  • the threshing device 5 right side surface and the engine room 97 rear surface are configured to be openable.
  • the purifier cover body 261 is supported by the lock pin fixing frame 160, while the left side surface of the grain tank 7 is covered with a heat insulating material 260, thereby shielding the periphery of the exhaust gas purifier 74. It does not matter as a structure to heat. That is, the exhaust gas purification device 74 is covered with the heat insulating material 260 while part of the right side surface and the upper surface of the exhaust gas purification device 74 is covered with the purification device cover body 261 so as to cover the exhaust gas purification device. Heat from the device 74 can be shielded.
  • heat insulation is provided from the right edge of the support base 250 in addition to providing the heat insulating material 260.
  • the plate 262 may be extended toward the upper side of the exhaust gas purification device 74. That is, by providing the heat shield plate 262 between the left side surface of the grain tank 7 and the right side surface of the exhaust gas purification device 74, the heat shield plate 262 blocks the radiant heat from the exhaust gas purification device 74. It is possible to prevent the grain tank 7 from being heated by the exhaust gas purification device 74.
  • Threshing device Grain tank 10 Operating cabin 31 Fuel tank 14 Diesel engine 74 Exhaust gas purification device 75 First case 81 Purification inlet pipe (exhaust gas intake) 82 Purification outlet pipe (exhaust gas outlet) 83 Tail pipe 91 Engine room frame 92 Left column (back frame) 94 Horizontal frame (back frame) 97 Engine room 174 Urea water tank 175 Urea water supply device 229 Second case 236 SCR inlet pipe (exhaust gas intake) 237 SCR outlet pipe (exhaust gas outlet) 239 Urea mixing tube

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PCT/JP2016/056646 2015-03-04 2016-03-03 コンバイン WO2016140320A1 (ja)

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CN107249301A (zh) 2017-10-13
CN112056079A (zh) 2020-12-11
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KR20210136169A (ko) 2021-11-16
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KR102481560B1 (ko) 2022-12-26
KR102656750B1 (ko) 2024-04-11
KR20210024226A (ko) 2021-03-04
KR20170109058A (ko) 2017-09-27
CN112056080A (zh) 2020-12-11

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