CN109699280A - Combine harvester - Google Patents

Abstract

The present invention relates to combine harvesters.In the combine harvester that sheller unit and engine are equipped with state laterally side by side, not needing expansion engine accommodating space just can be avoided or inhibits by engine exhaust bring air pollution.In the top of engine (7) equipped with exhaust gas treatment device (34).Exhaust gas treatment device (34) carries out purified treatment to the exhaust from engine (7).

Description

Combine harvester

Technical field

The present invention relates to the combine harvesters that sheller unit and engine are equipped with state laterally side by side.

Background technique

Above-mentioned combine harvester because sheller unit and engine laterally side by side due to can lower configure engine.

In this combine harvester, previous to become such as flowering structure: the exhaust of engine is discharged if flowing only through muffler.

Citation

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2014-18104 bulletin

Subject to be solved by the invention

In the past, it especially in field, is easy due to combine harvester turning driving or reciprocal traveling Cause the exhaust of engine to deposit, therefore, because engine exhaust and make air be easy pollution.

Summary of the invention

The present invention provide it is a kind of can to avoid or inhibit combine harvester by engine exhaust bring air pollution.

Solution for solving the problem

Combine harvester of the invention is with state laterally side by side equipped with sheller unit and engine, wherein

In the top of the engine equipped with the gas exhaust treatment for carrying out purified treatment to the exhaust from the engine Device.

According to this structure, the exhaust from engine is by exhaust gas treatment device purified treatment.Due to exhaust gas treatment device position It is therefore, big when vertical view without expanding engine accommodating space in order to configure exhaust gas treatment device in the top of engine It is small.Even if not needing to be significantly expanded in addition, being expanded yet.

Therefore, there is no need to expand engine accommodating space or less expand engine accommodating space just can be avoided or Inhibit by engine exhaust bring air pollution.

In the present invention, it is preferred to be, equipped with the cover for covering from above the exhaust gas treatment device.

According to this structure, exhaust gas treatment device easily becomes high temperature because of the purified treatment of engine exhaust, even if but straw The dust such as stalk crumb are flown upward, and the dust such as the stalk flown upward bits can also be avoided to fall on the exhaust gas treatment device of high temperature using cover.

In the present invention, it is preferred to be, discharge using the exhaust gas treatment device treated exhaust exhaust pipe with it is described Exhaust gas treatment device connection is formed with the openings for exhaust pipe perforation in the top plate portion of the cover, and the exhaust pipe passes through Lead to the openings to extend upwards.

According to this structure, since exhaust pipe penetrates through the openings of top plate portion, can strongly shorten exhaust pipe from exhaust The length that processing unit extends, and it is possible to configure the exhaust outlet of exhaust pipe higher.Can use shorter exhaust pipe will be by Exhaust gas treatment device purified treatment is simultaneously hoisted discharge with the exhaust that high temperature is discharged.

In the present invention, it is preferred to be, in the cover equipped with by dashing forward upwards in the exhaust pipe from the openings The exhaust pipe cover portion of the periphery covering of part out.

According to this structure, slave cover even in exhaust pipe part protruding to the outside also can use exhaust pipe cover portion It is covered, in case exposing the temperature due to exhaust from exhaust gas treatment device is easy the part risen.

In the present invention, it is preferred to be, it is empty equipped with the outside that can be taken into outside air in the middle part of the exhaust pipe Gas introduction part, the outside air introduction part be provided to it is in the exhaust pipe, with the cover compared to the close engine The part of side and with the cover compared to the part of the side of the separate engine.

According to this structure, the exhaust for being discharged from exhaust gas treatment device and exhaust pipe being utilized to guide to outlet is passing through row The outside air introduction part of the side of close engine in tracheae and the outside air introduction part of the side far from engine Each when, be directed to internal air from the outside of exhaust pipe using outside air introduction part and be mixed into exhaust, Therefore, even if becoming high temperature because of purified treatment from the exhaust that exhaust gas treatment device is discharged, the cooling of the air that can also be mixed into and Discharge.

In the present invention, it is preferred to be, in the cover equipped with from body, all around side covers the exhaust gas treatment device Side cover portion.

According to this structure, it can not only prevent the dust such as stalk bits from falling on exhaust gas treatment device, but also can use side To prevent dust from body, all around direction enters exhaust gas treatment device to cover portion.

In the present invention, it is preferred to be, in the side of the side opposite with the sheller unit of the engine, equipped with Towards the engine blow Air Blast fan, the side cover portion equipped with: by the engine the threshing fill It sets the threshing side cover portion of the part covering of side and covers the fan of the Air Blast fan from the side opposite with the engine There is hole portion in side cover portion equipped with what can be divulged information in threshing side cover portion and the fan side cover portion.

It according to this structure, is acted on by the air-supply of Air Blast fan, air has hole portion from the outer of cover via fan side cover portion Portion is directed to internal and generates wind, and the wind of generation is by engine and exhaust gas treatment device and having via threshing side cover portion Hole portion blows to the outside of cover, therefore, can carry out to engine and exhaust gas treatment device air-cooled.

In the present invention, it is preferred to be to be taken off equipped with storage using the sheller unit in the top of the engine The grain box of grain treated grain, the case bearing support supported to the grain box are stood up to the sheller unit And the rack that the engine is supported, the cover are supported on the case bearing support.

According to this structure, the bearing part that the firm case bearing support supported to grain box is used as to cover can use Simple support structure carry out supporting cover securely.

In the present invention, it is preferred to be, the sheller unit and the engine are on body left and right directions with laterally side by side State is equipped with, and is being leaned on the position of rear side equipped with the intercooler of the engine than the engine, is being matched in the cover The rear portion cover portion that the exhaust gas treatment device and the engine are covered from rear side is had, in the rear portion cover portion equipped with confession First through portion of the connection hose perforation that the engine and the intercooler are linked, first through portion are equipped with There is the protruding part of the shape along the connection hose.

According to this structure, intercooler is located at the position that rear side is leaned on than engine, and intercooler and engine are connected Therefore first through portion of the rear portion cover portion in the connection hose perforation cover of knot can be equipped with intercooler in the external of cover And strongly shorten the length of connection hose.

Even if having biggish outer diameter for the connection hose of engine combustion air circulation and to pass through for connection hose The size of the first logical through portion becomes larger, and can also reinforce rear portion cover using protruding part, so that rear portion cover portion has intensity.

In the present invention, it is preferred to be, the sheller unit and the engine are on body left and right directions with laterally side by side State is equipped with, and is being leaned on the position of front side equipped with air cleaner than the engine, is being covered in the cover equipped with from front side The front cover portion of the air cleaner and the engine, in the front cover portion equipped with for by the engine and institute State the second through portion of the air supply hose perforation of air cleaner connection.

According to this structure, air cleaner is located at the position that front side is leaned on than engine, and air cleaner and engine are connected The through portion of front cover portion in the air supply hose perforation cover of knot, therefore, can cover it is external be equipped with air cleaner and Strongly shorten the length of air supply hose.

In the present invention, it is preferred to be, in the side of the side opposite with the sheller unit of the exhaust gas treatment device, Equipped with the sensor for the state for detecting the exhaust gas treatment device.

According to this structure, easily with respect to exhaust disposal plant side locating for the sheller unit opposite side towards sensing Device is stretched out one's hand, and therefore, is easy overhaul sensor, repair.

In the present invention, it is preferred to be, the sheller unit and the engine are on body left and right directions with laterally side by side State is equipped with, also, the exhaust gas treatment device is equipped with length direction along state in the front-back direction, and discharge utilizes the row The Flash Gas Compression Skid System exhaust pipe that treated is vented, it is opposite with the sheller unit in the rear portion of the exhaust gas treatment device Side side connection, the exhaust pipe stretches from the exhaust gas treatment device to body lateral outer side along body left and right directions It erects after out, and then extends forward upward, and extending upward than the engine by the position of front side.

According to this structure, it can use extremely short exhaust pipe and the exhaust being discharged from exhaust gas treatment device be discharged to than starting Machine leans on front side and the position more against the top than engine.

In the present invention, it is preferred to be, discharge utilizes the exhaust of the exhaust gas treatment device exhaust pipe that treated is vented The part of mouth side extends upward and is bent in such a way that the exhaust outlet is towards horizontal direction.

According to this structure, since exhaust outlet is towards horizontal direction, the exhaust being discharged from exhaust outlet is in the horizontal direction It being discharged, the dust etc. near exhaust outlet is blown away in the horizontal direction, so, dust and rainwater etc. are not easily accessed exhaust Pipe.

In the present invention, it is preferred to be to be taken off equipped with storage using the sheller unit in the top of the engine The grain box of grain treated grain, the exhaust gas treatment device configuration is in the sky by the grain box and engine encirclement Between.

According to this structure, can will be filled as the dead space by grain box and the space of engine encirclement as gas exhaust treatment The configuration space set, therefore, although equipment exhaust gas treatment device, body will not enlargement.

In the present invention, it is preferred to be, the combine harvester is equipped with the grain that will be stored in the grain box to outside The cereal grain-discharging device of discharge, in the top of the engine equipped with the hydraulic of the driving source as the cereal grain-discharging device Formula actuator, the combine harvester equipped with the cover for covering from above the engine and the exhaust gas treatment device, It is described cover equipped with by working oil leak from the actuator guide to overlook when and the engine and exhaust place Manage the guide portion of the nonoverlapping position of device.

According to this structure, cover is used as guiding mechanism and guide structure can be obtained with simple structure, and it is possible to utilize Guide portion avoids the working oil leaked from hydraulic actuator from falling and is attached on engine or exhaust gas treatment device.

Detailed description of the invention

Fig. 1 is the whole right side view for indicating combine harvester.

Fig. 2 is the whole top view for indicating combine harvester.

Fig. 3 is the rearview for indicating grain box, sheller unit and engine.

Fig. 4 is the right side view for indicating power part.

Fig. 5 is the rearview for indicating power part.

Fig. 6 is the top view for indicating the top plate portion of cover.

Fig. 7 is the rearview for indicating the rear portion cover portion of cover.

Fig. 8 is the main view for indicating the front cover portion of cover.

Fig. 9 is the left side view for indicating the threshing side cover portion of cover.

Figure 10 is the right side view for indicating the fan side cover portion of cover.

Figure 11 is the cross-sectional view of rear portion cover portion.

Description of symbols

4 racks

7 engines

14 sheller units

15 grain boxes

16 cereal grain-discharging devices

21 casees bearing supports

31 hydraulic actuators (hydraulic motor)

32 hydraulic actuators (hydraulic cylinder)

33 air cleaners

34 exhaust gas treatment devices

35 Air Blast fans

36 covers

36A top plate portion

The side 36B cover portion

40 air supply hoses

41 intercoolers

42 connection hoses (the first connection hose)

43 connection hoses (the second connection hose)

47 sensors

49 exhaust pipes

49 parts T

50 exhaust outlets

53 outside air introduction parts

54 front cover portions

55 rear portion cover portions

56 threshing side cover portions

56H has hole portion

57 fan side cover portions

58H has hole portion

60 openings

61 exhaust pipe cover portions

62 first through portions (the first gas supply through portion)

63 second through portions (the second gas supply through portion)

The space S

Specific embodiment

Hereinafter, being illustrated based on the drawings embodiments of the present invention.Fig. 1 is the whole side view for indicating combine harvester Figure.Fig. 2 is the whole top view for indicating combine harvester.When being illustrated to embodiment, Fig. 1 and shown in Fig. 2 It is the direction definition of " F " is the front direction of travel machine body 1, the direction definition of " B " is travel machine body 1 rear direction, shown in Fig. 2 The direction definition of " L " is the left direction of travel machine body 1, the right direction that the direction definition of " R " is travel machine body 1.

(overall structure of combine harvester)

As shown in Figure 1, 2, combine harvester has equipped with pair of right and left front vehicle wheel 2 and pair of right and left rear wheel 3 Travel machine body 1.The front vehicle wheel 2 of left and right can drivingly be supported on the front of rack 4.Pair of right and left rear wheel 3 can turn to ground It is supported on the rear portion of rack 4, utilizes power steering gear progress steering operation (not shown).It is arranged in the front of travel machine body 1 There is Drive Section 5.Drive Section 5 is covered by cabin 6.It is provided with to have by the position of rear side in the ratio Drive Section 5 of travel machine body 1 and start The power part 8 of machine 7.In the right lateral side portion of travel machine body 1, it is provided with from travel machine body right lateral side side and covers power part 8 and case The lower side cover K1 of bearing support 21.Lower side cover K1 is arranged to be opened and closed.Portion in travel machine body 1, that rear side is leaned on than engine 7 Position is provided with cooling device portion 9.Harvesting conveying device 10 is supported in the front of rack 4.Harvesting conveying device 10 has: slave Delivery section 11 that the front of frame 4 can be stretched out with swinging up and down forwards and be supported on delivery section 11 projecting end receipts Cut portion 12.Swinging operation is carried out to delivery section 11 by the expanding-contracting action by lift cylinders 13, thus across decline job state Descending operation is carried out to harvesting portion 12 with non-job state is risen.There is sheller unit 14 in the rear support of rack 4.It is filled in threshing 14 top is set equipped with grain box 15.In sheller unit 14 equipped with cereal grain-discharging device 16.Grain box 15 and cabin 6 it Between be provided with from travel machine body right lateral side side covering cereal grain-discharging device 16 longitudinal discharger portion 16a upper side cover K2.On Side cover K2 is arranged to be opened and closed.

In the combine harvester, by making harvesting portion 12 drop to decline job state and making traveling machine in this state Body 1 travels, and thus allows for the harvesting of rice, wheat etc..That is, in harvesting portion 12, using rotation winder 17 to Harvesting device 18 pulls out upright stalk, and the root of upright stalk is cut off and carried out the harvesting of upright stalk by harvesting device 18, benefit Delivery section 11 is supplied to by stalk is gathered in auger 19.The entire part from root to spike for gathering in stalk utilizes delivery section 11 It is supplied to sheller unit 14 and carries out threshing processing.The threshing grain as obtained from carrying out threshing processing is defeated using device 20 of winnowing It is sent to grain box 15 and is stored.Stored threshing grain is discharged using cereal grain-discharging device 16 from grain box 15.

(structure of grain box 15)

As shown in Figure 2,3, grain box 15 across the state of the top of sheller unit 14 and the top of engine 7 to be equipped with. Linking part 15a is formed in the lower part of the right end side of grain box 15.Linking part 15a is supported on case bearing support 21 via support shaft 22 The supporting part 21a for the front and back having.Case bearing support 21 by the frame unit that will extend along the front-rear direction of travel machine body 1, along row Sail the frame unit of the left and right directions extension of body 1 and along combinations such as the newel frame parts of up and down direction extension of travel machine body 1 And it constitutes, and stand up rack 4 in the right lateral side side of sheller unit 14.Grain box 15 is supported via support shaft 22 and case Frame 21 is supported on rack 4, using the central spindle P for the support shaft 22 that will extend along the front-rear direction of travel machine body 1 as swing pivot energy Enough states gone up and down across decline storage posture and rising discharge posture are supported, and the decline storage posture is grain box 15 left side has decreased to the posture near the top plate portion of sheller unit 14, described to rise the left side that discharge posture is grain box 15 Wall is located at the posture of the position higher than right side wall 15b.The lower part and case bearing support 21 of lift cylinders 23 and grain box 15 link.Grain The descending operation of case 15 is carried out by the expanding-contracting action of lift cylinders 23.

Sliding slot 25 is supported with via support shaft 24 in the right-hand end of grain box 15.Sliding slot 25 is fulcrum shaft with support shaft 24 It can be supported with swinging up and down.Shrinking connecting-rod 26 and sliding slot 25 and grain box 15 link.Operate drag-line 27 inhaul 27a with The motion arm 26a of shrinking connecting-rod 26 and the drag-line linking part 15c connection of grain box 15.Motion arm 26a and inhaul 27a are via bullet Spring 28 links.When grain box 15 stores posture changing posture to decline, inhaul 27a is stretched operation, motion arm 26a utilization Drag-line 27 is operated to sliding slot uplifted side by swinging operation, so that sliding slot 25 be made to ramp up storage posture changing posture.In sliding slot 25 When ramping up storage posture changing posture, the grain outlet 29 for being formed in the right side wall 15b of grain box 15 is blocked by sliding slot 25. When grain box 15 ramps up discharge posture changing posture, inhaul 27a is released operation, and motion arm 26a is by sliding slot 25 Weight declines side oscillation to sliding slot, so that sliding slot 25 be made to use posture changing posture to decline.Become decline in sliding slot 25 to use When posture, grain outlet 29 is opened, the threshing grain flowed out from grain outlet 29 by sliding slot 25 guide and towards traveling machine The right lateral outer side of body 1 flows down.By the way that grain box 15 is ramped up discharge posture changing posture, so that threshing grain is arranged from grain 29 outflow of outlet can take out threshing grain from grain box 15.

(structure of cereal grain-discharging device 16)

As shown in Figure 1, 2, cereal grain-discharging device 16 has: to exist along the setting of the posture of the up and down direction of travel machine body 1 Longitudinal discharger portion 16a between grain box 15 and cabin 6 and from the upper end of longitudinal discharger portion 16a to level The lateral discharger portion 16b that direction is stretched out.Longitudinal discharger portion 16a and transverse direction discharger portion 16b are by helical feed Device is constituted.Screw is discharged in the conveying top portion of longitudinal discharger portion 16a and the bottom being arranged in the inside of grain box 15 The delivery terminal portion of 30 (referring to Fig.1) is via connection shell connection.The spiral of hydraulic motor 31 and longitudinal discharger portion 16a fill It sets and linkedly links.Hydraulic cylinder 32 and the transport tube of longitudinal discharger portion 16a linkedly link.Longitudinal discharger portion 16a Using hydraulic cylinder 32 relative to connection shell carry out rotation process so that transverse direction discharger portion 16b to use posture or It stores posture and carries out posture changing, described using under posture, the transverse direction discharger portion 16b is towards the right side of travel machine body 1 Lateral outer side is stretched out, and under the storage posture, the transverse direction discharger portion 16b is with towards the posture before and after travel machine body In the top of the right end side of grain box 15.Cereal grain-discharging device 16 is driven using the hydraulic motor 31 as fluid pressure type actuator Move grain discharge state, and using the hydraulic cylinder 32 as fluid pressure type actuator with to use posture or storage posture carry out appearance The mode of gesture change is driven.Hydraulic motor 31 is provided to the right lateral side of in 7 top of engine, longitudinal discharger portion 16a The position of side.Hydraulic cylinder 32 be provided to it is in the top of engine 7, than longitudinal discharger portion 16a by travel machine body laterally inboard Position.

When taking out threshing grain from grain box 15 using cereal grain-discharging device 16, grain box 15 is ramped up into discharge posture Change posture is so that threshing grain flow to bottom discharge screw 30.In this case, no matter grain box 15 ramps up discharge How is the posture changing of posture, and sliding slot 25 is all locked in rising storage posture in advance in order to avoid sliding slot 25 is become to decline using posture More posture maintains the state for blocking grain outlet 29.

(structure of power part 8)

As shown in Figure 4,5, in power part 8, in addition to having engine 7, be also equipped with engine air cleaner 33, Exhaust gas treatment device 34, Air Blast fan 35 and cover 36.

As shown in Figure 2,3, engine 7 is provided to than sheller unit 14 by the position of the right lateral side of travel machine body 1.Engine 7 become the state support of the direction of the left and right directions along travel machine body 1 with the direction of output shaft 7b (referring to Fig. 7) in rack 4. Positional relationship between engine 7 and sheller unit 14 becomes following positional relationship: engine 7 and sheller unit 14 are in traveling machine Become state laterally side by side on the left and right directions of body 1.

As shown in figure 4, air cleaner 33 is provided to along the lateral state of travel machine body 1 than starting with length direction Machine 7 leans on the position of front side, and supported portion part 37 supports.Bearing part 37 is supported by case bearing support 21.In air cleaner 33 Lateral one end be formed with intake section 33a.Air inlet pipe 38 is connect with intake section 33a.As shown in Fig. 1,2,4, air inlet pipe 38 from Intake section 33a extends between grain box 15 and cabin 6 upward.Pre-filtering sky is installed in the upper end of air inlet pipe 38 Air cleaner 39.Be formed in air cleaner 33 discharge unit 33b and engine 7 front formed booster portion 7a into Gas portion is connected via air supply hose 40.The discharge unit of booster portion 7a and be provided to cooling device portion 9 and be located at leaned on than engine 7 The introduction part of the intercooler 41 of the position of rear side is linked using the first connection hose 42.The discharge unit of intercooler 41 and The intake section of engine 7 is linked using the second connection hose 43.

Air above travel machine body is attracted to first in pre-filtering air cleaner 39, then from pre-filtering air filter Clear device 39 is attracted in air cleaner 33 via air inlet pipe 38.In pre-filtering air cleaner 39 and air cleaner 33 Middle progress dust removes that treated air, is attracted to via air supply hose 40 in booster portion 7a and by compression processing.Pressure Contracting treated air is fed into intercooler 41 and cooled processing via the first connection hose 42.After cooling treatment Air is attracted in engine 7 via the second connection hose 43 as combustion air.

As shown in figure 4, engine 7 and being provided to cooling device portion 9 and being located at and start than engine 7 by the position of rear side The cooling radiator 44 of machine is linked using a pair of of cooling water loop hose 45.Engine cooling water is recycled via a pair of of cooling water Hose 45 recycles between engine 7 and radiator 44, and the cooling of engine 7 is carried out using the engine cooling water of circulation.

(structure of exhaust gas treatment device 34)

As shown in Figure 3,4, exhaust gas treatment device 34 is equipped with length direction along the state in the front-back direction of travel machine body 1 In the top of engine 7.Exhaust gas treatment device 34 is configured at the space S surrounded by grain box 15 and engine 7.Gas exhaust treatment dress Set 34 tops that engine 7 is supported on via the bearing part (not shown) of front and back.

As shown in figure 4, the side opposite with sheller unit 14 of exhaust gas treatment device 34 side equipped with sensor 47.Sensor 47 is arranged at the supporting part bearing of exhaust gas treatment device 34.Such as the concentration of the nitrogen oxides contained in exhaust The state of equal exhaust gas treatment devices 34 is detected using sensor 47.Purification control is output to by the detection information that sensor 47 obtains Device (not shown) is controlled using the purification that the amount of injection of urea water is adjusted in purification control apparatus.

As shown in Figure 4,5, the lower part in the front of exhaust gas treatment device 34 is formed with exhaust and imports canister portion 34a.Exhaust The exhaust portion for importing canister portion 34a and engine 7 is connected via ingress pipe 48.It is in the rear portion of exhaust gas treatment device 34 and de- The side of the opposite side of grain device 14 is formed with exhaust discharge canister portion 34b.Exhaust pipe 49 is connect with exhaust discharge canister portion 34b.

As shown in Figure 4,5, exhaust pipe 49 equipped with: from exhaust be discharged lateral outer side edge of the canister portion 34b to travel machine body 1 Travel machine body 1 left and right directions extend the portion 49a of square tube lateral out；It is stood upward from the projecting end of square tube portion 49a lateral out The standing pipe portion 49b risen；The preceding height just extended out of the upper end of standing pipe portion 49b upward the transverse direction of front and travel machine body 1 The inclination pipe portion 49c of low state afterwards；And the projecting end being located at than engine 7 by the position of front side from inclination pipe portion 49c The pipe portion 49d upward extended between grain box 15 and cabin 6 upward.That is, exhaust pipe 49 is from exhaust gas treatment device 34 to body Lateral outer side erects upward after stretching out along body left and right directions, and then extends forward, and then in the position for leaning on front side than engine 7 The place of setting extends upward.

As shown in Fig. 1,5,6, upward, the upper end of pipe portion 49d is formed with exhaust outlet 50.The top of pipe portion 49d is curved upward Exhaust outlet 50 is converted into towards horizontal direction and inward-facing rear.Pipe portion upward is covered equipped with from peripheral side in pipe portion 49d upward The upper exhaust pipe shield 51 on the top 49d.The multiple ventilations for being able to carry out the heat dissipation of pipe portion 49d upward are formed in upper exhaust pipe shield 51 Hole.In pipe portion 49d upward equipped with the bracket 52 linked via connecting member (not shown) and cabin 6.Upward pipe portion 49d via Bracket 52 and connecting member are supported on cabin 6.

As shown in Figure 4,5, two positions in the flow direction of exhaust gases of inclination pipe portion 49c are formed with outside air and import Portion 53.In the outside air introduction part 53 at two positions, in the end 53a of the outlet pipe portion of flow direction of exhaust gases upstream side End is formed in into the state of the inside of the end 53b of the outlet pipe portion in flow direction of exhaust gases downstream side, also, in gap In the state of between portion 53a, 53b, both ends 53a, 53b become dual structure.By along with exhaust from upstream side The injection effect of the outlet pipe portion flowing of outlet pipe portion downstream, air outside exhaust pipe 49 by end 53a, The mutual gap 53b is directed to the inside of exhaust pipe 49.Imported air is mixed into the internal flow in exhaust pipe 49 In exhaust.

The exhaust being discharged from engine 7 is directed to exhaust gas treatment device 34 via ingress pipe 48 and is cleaned processing.That is, In exhaust gas treatment device 34, imported exhaust is cleaned processing using as the urea water of an example of reducing agent, at purification Exhaust after reason becomes the exhaust for reducing nitrogen oxides.That is, urea water injection is made into exhaust it hydrolyze and generate ammonia, make The nitrogen oxides for including in ammonia and exhaust is chemically reacted and is reduced to nitrogen and water, to make the nitrogen oxides for including in exhaust It reduces.Exhaust after purified treatment is discharged to exhaust pipe 49 from exhaust gas treatment device 34, is directed into exhaust using exhaust pipe 49 Mouthfuls 50 and be discharged in the horizontal direction from exhaust outlet 50 in the top of travel machine body 1.It is being located at the middle part of exhaust pipe 49 In the outside air introduction part 53 at two positions, the air outside exhaust pipe 49 is mixed into the row flowed in exhaust pipe 49 In gas, the cooling that is exhausted by air.As a result, by the exhaust after 34 purified treatment of exhaust gas treatment device in temperature ratio from exhaust Processing unit 34 be discharged when temperature it is low in the state of from exhaust outlet 50 be discharged.

As shown in Figure 2,3, Air Blast fan 35 is provided in the side of the side opposite with sheller unit 14 of engine 7, should Air Blast fan 35 can be rotatably supported at the side of engine 7.

(structure of cover 36)

As shown in Figure 4,5, cover 36 has top plate portion 36A and side cover portion 36B.Top plate portion 36A and side cover portion 36B branch It holds in the frame unit for constituting case bearing support 21, cover 36 is supported on case bearing support 21.Side cover portion 36B has: covering and arranges from front side The front cover portion 54 on the top of Flash Gas Compression Skid System 34 and engine 7 and exhaust gas treatment device 34 and engine 7 are covered from rear side Top rear portion cover portion 55.Side cover portion 36B has threshing side cover portion 56, and the threshing side cover portion 56 is by exhaust gas treatment device 34 Sheller unit side part and engine 7 top sheller unit side part covering.Side cover portion 36B has fan side Cover portion 57, the part which covers side locating for the Air Blast fan 35 of exhaust gas treatment device 34 (are filled with threshing Set the part of the opposite side in side) and engine 7 top Air Blast fan 35 locating for side part (with sheller unit side The part of opposite side), and Air Blast fan 35 is covered from the side opposite with engine 7.

Engine 7 and exhaust gas treatment device 34 are covered from above by the top plate portion 36A of cover 36.34 He of exhaust gas treatment device The top of engine 7 is covered by the side cover portion 36B of cover 36 from the side all around of travel machine body 1.Can use cover 36 prevents The dust such as stalk bits are fallen on engine 7 and exhaust gas treatment device 34 from top and the dust such as stalk bits are on the right side of preceding rear left Into exhaust gas treatment device 34 and engine 7.

Air Blast fan 35 is configured to be blown by the power drive of engine 7 towards engine 7.As shown in Fig. 5,10, Fan side cover portion 57 is equipped with the intake section 58 entered for Air Blast fan 35.There is hole portion equipped with what can be divulged information in intake section 58 58H.As shown in Fig. 4,5,9, there is hole portion 56H equipped with what can be divulged information at three positions in threshing side cover portion 56.

It is acted on by the air-supply of Air Blast fan 35, the air of travel machine body lateral outer side has hole portion 59 via lower side cover K1 (referring to Fig.1) and fan side cover portion 57 has hole portion 58H to be attracted to the inside of cover 36 and generate wind, and the wind of generation is in cover 36 It is flowed around internal engine 7 and exhaust gas treatment device 34 towards sheller unit side, and by threshing side cover portion 56 There is external outflow of the hole portion 56H to cover 36.Engine 7 and exhaust gas treatment device 34 are by the air-supply carried out by Air Blast fan 35 And it is cooled.Engine 7 and exhaust gas treatment device 34 are cleaned by the air-supply carried out by Air Blast fan 35.

As shown in Figure 4,5, openings 60 are formed in the top plate portion 36A of cover 36.Inner utilization of the exhaust pipe 49 from cover 36 Inclination pipe portion 49c penetrates through openings 60 and reaches the outside of cover 36 and extend upwards.From it is in the upper surface of top plate portion 36A, Position near openings 60 has been provided projectingly exhaust pipe cover portion 61 upward.In the inclination pipe portion 49c of exhaust pipe 49 from The periphery of the part 49T outstanding upwards of openings 60 is covered by exhaust pipe cover portion 61, in case part 49T outstanding exposes.

As shown in Figure 4,5, the flow direction of exhaust gases upstream in the outside air introduction part 53 at two positions of exhaust pipe 49 The outside air introduction part 53 of side, be provided to it is in exhaust pipe 49, compared with the top plate portion 36A of cover 36 close to engine 7 one The part of side.The outside air in the flow direction of exhaust gases downstream side in the outside air introduction part 53 at two positions of exhaust pipe 49 Introduction part 53 is provided to the part of side in exhaust pipe 49, compared with the top plate portion 36A of cover 36 far from engine 7.Exhaust The periphery of the outside air introduction part 53 in flow direction downstream side is covered by exhaust pipe cover portion 61.

As shown in Fig. 4,7, rear portion cover portion 55 in cover 36 is equipped with that there are two the first gas supply through portions 62 (to be equivalent to the One through portion 62).First connection hose 42 penetrates through the first gas supply perforation of the side in two first gas supply through portions 62 Portion 62.Second connection hose 43 penetrates through the first gas supply through portion 62 of another party in two first gas supply through portions 62. As shown in Fig. 7,11, in two the first gas supply with through portion 62 equipped with the protruding part 66 inserted for connection hose 42,43.It is convex Play the annular for the shape that component 66 is formed as along connection hose 42,43.Rear portion cover portion 55 is reinforced using protruding part 66.It is convex Component 66 is played to be formed and bending the end of the first gas supply of rear portion cover portion 55 through portion 62.

As shown in Fig. 4,8, the front cover portion 54 in cover 36 (is equivalent to second to pass through equipped with the second gas supply through portion 63 Logical portion 63).The perforation of air supply hose 40 second gas supply through portion 63.

As shown in Fig. 4,7,9, rear portion cover portion 55 and threshing side cover portion 56 in cover 36 are penetrated through equipped with cooling water Portion 64.The cooling water loop hose 45 of a side in a pair of of cooling water loop hose 45 penetrates through the cooling water of rear portion cover portion 55 with passing through Logical portion 64.The cooling water loop hose 45 of another party in a pair of of cooling water loop hose 45 penetrates through the cooling in threshing side cover portion 56 Water through portion 64.

As shown in Fig. 6,7,10, in cover 36 equipped with the guide portion 65 of motor.Specifically, guide portion 65 is arranged in cover Fan side cover portion 57 in 36 towards above.The cross-sectional shape of guide portion 65 is formed as upwardly opening flute profile.Fan side cover Portion 57 towards being above the inclined surface of low early and high after state, the guide surface of guide portion 65 is the inclined surface of low early and high after state.? Working oil from hydraulic motor 31 leak in the case where, the working oil of leakage falls on guide portion 65.The work of guide portion 65 is fallen on The low early and high afterly inclined guide surface of oily directed section 65 guides and 1 front side of travel machine body that flow in guide portion 65 Position 65a is simultaneously fallen from position 65a, and position 65a is nonoverlapping with engine 7 and exhaust gas treatment device 34 when overlooking Position.From engine 7 and exhaust gas treatment device 34 to travel machine body 1 when the working oil leaked from hydraulic motor 31 falls on vertical view Front side deviate position, without falling on engine 7 and exhaust gas treatment device 34.As guide portion, remove working oil To the front side direction of travel machine body 1 guide guide portion 65 except, can also using by working oil to travel machine body 1 lateral out The guide portion of side direction guidance.

Although not shown, it but on cover 36, in addition to the guide portion 65 of motor, is further equipped with and blocks from the leakage of hydraulic cylinder 32 Working oil and when directing it to vertical view with engine 7 and the hydraulic cylinder of the nonoverlapping position of exhaust gas treatment device 34 Guide portion.

As shown in figure 8, the front cover portion 54 in cover 36 is made of a cover member, and it is provided in the transverse direction of case bearing support 21 The inside of frame unit 21b.

As shown in fig. 7, the rear portion cover portion 55 in cover 36 be configured to be divided into upper cup portion 55a, middle cover portion 55b and under Cover portion 55c.Cooling water through portion 64 is formed across upper cup portion 55a and middle cover portion 55b.Two gas supply with through portion 62 across Middle cover portion 55b and lower cup portion 55c and formed.

As shown in Figure 10, the fan side cover portion 57 in cover 36 is configured to be divided into upper cup portion 57a and lower cup portion 57b. In lower cup portion 57b equipped with intake section 58.As shown in Fig. 5,7,10, the lower part of intake section 58 equipped with downwardly facing opening 58a with And guard block 58b.The front-rear direction length of downwardly facing opening 58a is longer than the front-rear direction length of guard block 58b.

As shown in figure 9, the threshing side cover portion 56 in cover 36 is configured to upper cup portion 56a, preceding lower cup portion before being divided into 56b, rear upper cup portion 56c, rear middle cover portion 56d and rear lower cup portion 56e.Cooling water with through portion 64 across rear upper cup portion 56c and Afterwards middle cover portion 56d and formed.There is hole portion 56H to be provided to preceding upper cup portion 56a, preceding lower cup portion 56b and rear lower cup portion 56e.

As shown in fig. 6, the top plate portion 36A in cover 36 be configured to be divided into front left cover portion 36c, front right cover portion 36d with And rear cover portion 36e.As shown in Fig. 4,6, openings 60 and exhaust pipe cover portion 61 are provided to front left cover portion 36c.

Each company of being utilized respectively of front cover portion 54, rear portion cover portion 55, threshing side cover portion 56 and fan side cover portion 57 Knot bolt links and can be opened and closed with case bearing support 21.All cover portions and case bearing support 21 can also be linked using using welding Structure.Alternatively, it is also possible to using such as flowering structure: the cover portion being opened and closed will be needed to link with case bearing support 21 using binder bolt, And the cover portion for not needing opening and closing is linked with case bearing support 21 using welding.

(other embodiments)

(1) in the above-described embodiment, it shows as exhaust gas treatment device 34 using using as an example of reducing agent Urea water exhaust is carried out purified treatment exhaust gas treatment device example, but can also be filled using following gas exhaust treatment Set: it is the purification exhaust that particulate material reduces that the diesel particulate in exhaust, which is collected filter and collects and be cleaned processing,.

(2) in the above-described embodiment, show across the top of sheller unit 14 and the top of engine 7 and equipped with The example of grain box 15, but can also be using such as flowering structure: across the position and engine 7 deviateed from the top of sheller unit 14 Top and be equipped with grain box 15.Alternatively, it is also possible to only be provided in the structure of 7 top of engine using grain box 15.

(3) in the above-described embodiment, the example equipped with cover 36 is shown, but also can be in a manner of not having cover 36 Implement.

(4) in the above-described embodiment, the example of the structure of the top plate portion 36A using the perforation of exhaust pipe 49 cover 36 is shown Son, but can also be using the structure of the part other than the top plate portion in perforation cover 36.

(5) in the above-described embodiment, the example equipped with Air Blast fan 35 is shown, but also can be not have air-supply The mode of fan 35 is implemented.

(6) in the above-described embodiment, it shows intercooler 41 and radiator 44 is provided in than engine 7 rearward The example of the position of side, but can also be provided in and implement than engine 7 by any position such as front side or horizontal side.In addition, also can It is enough to be implemented in a manner of not having intercooler 41.

(7) in the above-described embodiment, it shows air cleaner 33 and is provided in the example for leaning on the position of front side than engine 7 Son, but can also be provided in and implement than engine 7 by any positions such as horizontal side or rear sides.

(8) in the above-described embodiment, the exhaust outlet 50 for showing exhaust pipe 49 is configured to the example towards horizontal direction, But the structure towards any directions such as tops can also be used.

(9) in the above-described embodiment, the example equipped with front vehicle wheel 2 and rear wheel 3 is shown, but can also be had Crawler travel device or the mobile devices for combining wheel and small-sized caterpillar belt mobile devices.

Industrial applicibility

The present invention is not limited to ordinary combine harvesters, can be applied to half-feed combine harvester.

Claims (15)

1. a kind of combine harvester, with state laterally side by side equipped with sheller unit and engine, wherein

In the top of the engine equipped with the exhaust gas treatment device for carrying out purified treatment to the exhaust from the engine.

2. combine harvester as described in claim 1, wherein

The combine harvester is equipped with the cover for covering from above the exhaust gas treatment device.

3. combine harvester as claimed in claim 2, wherein

Discharge is connect using the exhaust gas treatment device exhaust pipe that treated is vented with the exhaust gas treatment device,

The openings for exhaust pipe perforation are formed in the top plate portion of the cover,

The exhaust pipe penetrates through the openings and extends upwards.

4. combine harvester as claimed in claim 3, wherein

In the cover equipped with the row that will be covered in the exhaust pipe from the periphery of openings part outstanding upwards Tracheae cover portion.

5. combine harvester as described in claim 3 or 4, wherein

The exhaust pipe middle part equipped with the outside air introduction part that can be taken into outside air,

The outside air introduction part is provided in the exhaust pipe, the close engine compared with the cover side Partially and with the cover compared to the part of the side of the separate engine.

6. the combine harvester as described in any one of claim 2~5, wherein

In the cover equipped with from body, all around side covers the side cover portion of the exhaust gas treatment device.

7. combine harvester as claimed in claim 6, wherein

In the side of the side opposite with the sheller unit of the engine, sent equipped with what is blown towards the engine Wind fan,

In the side cover portion equipped with the threshing side cover that covers the part of the sheller unit side in the engine Portion and the fan side cover portion that the Air Blast fan is covered from the side opposite with the engine,

There is hole portion equipped with what can be divulged information in threshing side cover portion and the fan side cover portion.

8. the combine harvester as described in any one of claim 2~7, wherein

In the top of the engine equipped with storage using the grain box of sheller unit progress threshing treated grain,

The case bearing support supported to the grain box is stood up to the sheller unit and engine progress The rack of bearing,

The cover is supported on the case bearing support.

9. the combine harvester as described in any one of claim 2~8, wherein

The sheller unit and the engine are equipped on body left and right directions with state laterally side by side,

Leaning on the position of rear side equipped with the intercooler of the engine than the engine,

It covers described equipped with the rear portion cover portion for covering the exhaust gas treatment device and the engine from rear side,

In the rear portion cover portion equipped with for by the of the engine and the connection hose perforation of intercooler connection One through portion,

Protruding part of first through portion equipped with the shape along the connection hose.

10. the combine harvester as described in any one of claim 2~9, wherein

The sheller unit and the engine are equipped on body left and right directions with state laterally side by side,

Leaning on the position of front side equipped with the air cleaner of the engine than the engine,

It covers described equipped with the front cover portion for covering the exhaust gas treatment device and the engine from front side,

In the front cover portion equipped with for by the of the engine and the air supply hose perforation of air cleaner connection Two through portions.

11. such as combine harvester according to any one of claims 1 to 10, wherein

In the side of the side opposite with the sheller unit of the exhaust gas treatment device, equipped with the detection gas exhaust treatment The sensor of the state of device.

12. the combine harvester as described in any one of claim 1~11, wherein

The sheller unit and the engine are equipped on body left and right directions with state laterally side by side, also, the exhaust Processing unit is equipped with length direction along state in the front-back direction,

Discharge is using the exhaust gas treatment device exhaust pipe that treated is vented, in the rear portion of the exhaust gas treatment device The side of the side opposite with the sheller unit connects,

The exhaust pipe erects upward after stretching out from the exhaust gas treatment device to body lateral outer side along body left and right directions, And then extend forward, and extending upward than the engine by the position of front side.

13. the combine harvester as described in any one of claim 1~12, wherein

Discharge using the exhaust gas treatment device treated exhaust exhaust pipe exhaust-port-side portion extend upward and with The exhaust outlet is bent towards the mode of horizontal direction.

14. the combine harvester as described in any one of claim 1~13, wherein

In the top of the engine equipped with storage using the grain box of sheller unit progress threshing treated grain,

The exhaust gas treatment device configuration is in the space by the grain box and engine encirclement.

15. combine harvester as claimed in claim 14, wherein

The cereal grain-discharging device that the combine harvester is discharged equipped with the grain that will be stored in the grain box to outside,

In the top of the engine equipped with the fluid pressure type actuator of the driving source as the cereal grain-discharging device,

The combine harvester equipped with the cover for covering from above the engine and the exhaust gas treatment device,

The cover equipped with when working oil leak from the actuator is guided to vertical view with the engine and described The guide portion of the nonoverlapping position of exhaust gas treatment device.