CN102656990A

CN102656990A - Combine harvester

Info

Publication number: CN102656990A
Application number: CN2012101677689A
Authority: CN
Inventors: 正野润一
Original assignee: Yanmar Co Ltd
Current assignee: Yanmar Power Technology Co Ltd
Priority date: 2006-08-28
Filing date: 2007-08-27
Publication date: 2012-09-12
Anticipated expiration: 2027-08-27
Also published as: KR101473369B1; KR20130099235A; KR20130099234A; CN102656991B; JP4921893B2; WO2008026550A1; CN102656990B; CN101516178A; KR101419444B1; CN102656991A; KR20090055022A; CN101516178B; KR101473368B1; JP2008048704A

Abstract

A combine harvester having an exhaust device capable of efficiently discharging exhaust gas in a direction away from a machine body. The combine harvester has a grain tank (17) for containing hulls after harvesting, threshing, and sorting processes, and also has the exhaust device (41) constructed from a silencer (42), a tail pipe (61), etc., with one end of the exhaust device connected to an engine (34) mounted on the machine body and the other end extended between a threshing section (15) and the grain tank (17). The tail pipe (61) connected to an exhaust manifold (36) of the engine (34) on the upstream side of the exhaust device (41) is supported by support members (82, 83) arranged on the threshing section (15).

Description

Combine

The application is that to be called " combine ", international filing date be that August 27, international application no in 2007 are to be for PCT/JP2007/066575, national applications number dividing an application of 200780035648.0 application for a patent for invention to name.

Technical field

The present invention relates to a kind of combine, say in further detail, relate to the combining machine technology that exhaust apparatus is configured in body upper.

Background technology

In the past, the exhaust apparatus of combine was to pass underpart and be configured in body rear one side from engine, will be discharged at the body rear by the waste gas of engine producing.Exhaust apparatus comprises the muffler that reduces exhaust sound and (for example, with reference to the patent documentations 1) such as tail pipes of combustion gas.

But if exhaust apparatus such as muffler and tail pipe are configured in underpart, the mud of then rolling in the process of moving etc. hangs on the exhaust apparatus easily.If mud etc. hangs on the exhaust apparatus, then have following situation: mud etc. are because of being embraced to go into to adhere to be solidificated on muffler and the tail pipe, or mud etc. invades in the tail pipe.Particularly under the situation that combine goes in wetland, because mud etc., invade also increases such as the mud in the exhaust apparatus in large quantities attached on the exhaust apparatus, so the problem that exists the rideability of combine to reduce.

Therefore; The technology that exhaust apparatus is configured in the combine of body upper is also arranged, as the combine that possesses such exhaust apparatus, for example; Muffler is arranged in the engine room; To be configured in the body top with the tail pipe that above-mentioned muffler is being connected, the rear portion of above-mentioned tail pipe will be fixed on the top (for example, patent documentation 2) of shelling portion.In addition, such combine is arranged also: will be configured in the body top from waste pipe, will be fixed on the top of shelling portion, tail pipe is connected with above-mentioned muffler with the muffler that above-mentioned blast pipe is connected.

According to the combine that as above-mentioned, exhaust apparatus is configured in body upper, rolled-up in the process of moving mud etc. is difficult to hang on the exhaust apparatus, has prevented that quilt such as mud from embracing in the exhaust apparatus with mud etc. to invade in the exhaust apparatus.Therefore, can prevent because exhaust apparatus is embraced the reduction of the rideability of the combine that causes into intrusion such as mud etc. and mud.

Patent documentation 1: TOHKEMY 2005-261279 communique

Patent documentation 2: the real public clear 61-26130 communique of Japan

Summary of the invention

Invent problem to be solved

But under the situation of the combine that exhaust apparatus is configured in body upper, the part of exhaust apparatus protrudes in the top of combine.In addition, hang on the tail pipe, also need the height of tail pipe be arranged to height to a certain degree in order not make stalk bits or crop etc.Therefore, discharge the screw rod pitching, circle round if make because of carelessness, then might tail pipe with discharge screw rod and interfere, cause that both sides are out of shape, breakage.In addition; Under the situation of the combine that tail pipe is configured in body upper; Discharge screw rod and circle round and use if can make near the exhaust outlet ground of tail pipe and waste gas position contacting; The jet-black that is included in the waste gas is then also arranged easily attached to discharging on the screw rod, discharge the easy dirty problem in surface of screw rod.

The present invention is in view of such problem, and a kind of combine that possesses the exhaust apparatus of can be efficiently waste gas being discharged to the direction of leaving body is provided.

In order to solve the means of problem

The problem that the present invention will solve as previously discussed, below to describing for the means that solve this problem.

That is, in the present invention, combine possesses: the grain resettlement section of the paddy after storage harvesting, shelling, the sorting; One end is connected with the engine that carries on body; The other end extends setting between shelling portion and grain resettlement section; Comprise the exhaust apparatus of muffler and tail pipe etc., it is characterized in that: supporting the tail pipe that the upstream side at above-mentioned exhaust apparatus is connected with the discharge manifold of engine by being arranged on support unit in the shelling portion.

In addition, in the present invention, above-mentioned exhaust apparatus possesses: the muffler that in the engine room that is arranged on body the place ahead, is being connected with engine; Be connected with the downstream of above-mentioned muffler, be configured in the body top, eject tail pipe from the waste gas of engine; In above-mentioned engine room, be arranged on the above-mentioned tail pipe, the outer conductance that the outer gas in the engine room imports in the tail pipe is gone into portion.

In addition, in the present invention, with in vertical view, see from body all around the central portion mode of discharging to the bight, the outside, rear of above-mentioned shelling portion constitute the direction from the outlet combustion gas of above-mentioned tail pipe.

In addition, in the present invention, combine possesses: the grain resettlement section of the paddy after storage harvesting, shelling, the sorting; Can dispose rotationally freely at above-below direction and horizontal direction, discharge the discharge screw rod of paddy from above-mentioned grain resettlement section; One end is connected with the engine that carries on body; The other end extends setting between shelling portion and grain resettlement section; The exhaust apparatus that comprises muffler and tail pipe etc.; It is characterized in that: the outlet of above-mentioned tail pipe is configured in shelling portion top, makes and discharge the oblique rear of body that direction becomes the discharge screw rod opposition side when taking in.

In addition, in the present invention, the outlet of above-mentioned tail pipe the lateral transfer screw rod of the fore-and-aft direction substantial middle portion of the body discharge screw rod when taking in compare be configured in below.

In addition, in the present invention, protecting component is configured to the end of downstream side height than above-mentioned tail pipe, in vertical view, sees parallel with the discharge direction of tail pipe.

The effect of invention

As effect of the present invention, have like the effect shown in following.

In the present invention, because import the air draft from radiator, institute is so that the surface temperature reduction of tail pipe.In addition, prevented that dust from piling up to muffler pipe.In addition, because by the supporting of the few shelling portion of vibration, so, improved the durability of tail pipe.In addition, because the durability of tail pipe improves, so can use light material.

In addition, in the present invention, the mud of rolling in the process of moving etc. is difficult to hang on the exhaust apparatus, can prevent that quilt such as mud from embracing in exhaust apparatus or intrusion such as mud.Therefore, can prevent to embrace in exhaust apparatus or the reduction of the rideability of the combine that intrusion such as mud causes because of quilts such as mud.

In addition, because exhaust apparatus is configured in the top of body, so the waste gas of discharging from tail pipe is not blown on the ground of below of body, can prevent around combine, to roll dust etc. because of waste gas.

In addition; In engine room, be arranged on the tail pipe though outer conductance is gone into portion, the outer gas in the engine room is imported in the tail pipe, because the outer gas in the engine room has been removed stalk bits etc.; So, do not need conductance outside covering part to be set near going into the peristome of portion.Therefore, can simplify the structure that outer conductance is gone into portion, simplify the structure of exhaust apparatus.

In addition, in the present invention, can be to direction combustion gas away from pilot set and air entry.In addition, can obtain enough distances that waste gas can spread after discharging from tail pipe.

In addition, in the present invention, because to the top exhaust, so, mud can not take place be blocked in the phenomenon in the tail pipe.In addition, prevented that dust from flying upward from ground because of exhaust.In addition, because the structure of the underpart that goes becomes merely, so, also can in the wetland that body gets deeply stuck in, go.In addition, can will not discharge screw rod because of jet-black etc. and make dirty, exhaust can not rap around to suction side.And then exhaust can directly not blow to the operator.

In addition, in the present invention, when being deposited into garage etc., the front end of tail pipe can not be stuck.In addition, when depositing in, waste gas can not beaten on ceiling or wall etc., can it not made dirty.In addition, even when depositing in or after the end of job tarpaulin of rainproof usefulness is covered on whole machine body, the tarpaulin of rainproof usefulness can not contact with tail pipe yet, can be because of the tarpaulin of the burned rainproof usefulness of heat of tail pipe.

In addition, in the present invention, can prevent tail pipe and discharge the screw rod interference by protecting component.

Description of drawings

Fig. 1 is the unitary side view of combine.

Fig. 2 is the front view of combine.

Fig. 3 is the vertical view of combine.

Fig. 4 is the concise and to the point end view of exhaust apparatus.

Fig. 5 is the concise and to the point front view of exhaust apparatus.

Fig. 6 is the concise and to the point vertical view of exhaust apparatus.

Fig. 7 is the concise and to the point end view of the connecting portion of vertical conveying screw rod and lateral transfer screw rod.

Fig. 8 be the protective plate among Fig. 3 arrow P to view.

Fig. 9 is the end view of protective plate.

Figure 10 is the vertical view of protective plate.

Figure 11 is the cutaway view of protective plate.

Figure 12 (a) is the vertical view that existing outer conductance is gone into portion, (b) is make the upstream-side-end vertical view of going into portion of the outer conductance under the open condition obliquely.

Figure 13 is the stereogram of going into portion in the outer conductance that upstream-side-end is under the situation of cutting away a part step-likely.

Figure 14 (a) is the end view that the outer conductance under the situation of V word shape ground opening is gone into portion with upstream-side-end, (b) is its front view.

Figure 15 is the stereogram of exhaust apparatus of seeing from the P direction of Fig. 6 etc.

Figure 16 is the unitary side view of the related combine of second embodiment.

Figure 17 is the front view of the related combine of second embodiment.

Figure 18 is the vertical view of the related combine of second embodiment.

Figure 19 is the concise and to the point end view of the related exhaust apparatus of second embodiment.

Figure 20 is the concise and to the point front view of the related exhaust apparatus of second embodiment.

Figure 21 is the concise and to the point vertical view of the related exhaust apparatus of second embodiment.

Symbol description:

11: combine; 13: body; 15: shelling portion; 17: tanker; 21: discharge screw rod; 34: engine; 41: exhaust apparatus; 61: tail pipe; 63: end of downstream side; 90: protective plate.

Embodiment

Below, use figure describes embodiment of the present invention.

Embodiment 1

Use figure describes the related combine 11 of the first embodiment of the present invention.Fig. 1 is the unitary side view of combine 11, and Fig. 2 is the front view of combine 11, and Fig. 3 is the vertical view of combine 11; Fig. 4 is the concise and to the point end view of exhaust apparatus 41; Fig. 5 is the concise and to the point front view of exhaust apparatus 41, and Fig. 6 is the concise and to the point vertical view of exhaust apparatus 41, and Fig. 7 is the concise and to the point end view of the connecting portion of vertical conveying screw rod 22 and lateral transfer screw rod 23; Fig. 8 be the protective plate 90 among Fig. 3 arrow P to view; Fig. 9 is the end view of protective plate 90, and Figure 10 is the vertical view of protective plate 90, and Figure 11 is the cutaway view of protective plate 90; Figure 12 (a) is the vertical view that existing outer conductance is gone into portion 71; (b) be to make upstream-side-end 62 vertical view of going into portion 71 of the outer conductance under the open condition obliquely, Figure 13 is the stereogram of going into portion 71 in the outer conductance that upstream-side-end 62 is under the situation of cutting away a part step-likely, and Figure 14 (a) is the end view that the outer conductance under the situation of V word shape ground opening is gone into portion with upstream-side-end 62; (b) be its front view, Figure 15 is the stereogram of exhaust apparatus 41 grades seen from the P direction of Fig. 6.

At first, the overall structure to the related combine 11 of present embodiment describes.To shown in Figure 3, combine 11 is equipped with body (chassis) 13 on the crawler travel device 12 that supporting left and right sides crawler belt constitutes, be equipped with engine 34 on the anterior right side of this body 13 like Fig. 1.In the place ahead of body 13, be equipped with the driving force of engine 34 is delivered to the gearbox 31 of crawler travel device 12 through carrying out speed change, on gearbox 31, be provided with the axletree of the driving wheel of crawler travel device 12.In addition, be provided with reaping part 14,, be provided with sorting portion 16, be provided with the shelling portion 15 that possesses threshing cylinder and feeding chain 15a etc. on the top of sorting portion 16 in the left side of travel direction on the top of body 13 in the front portion of body 13.Right side on the top of body 13 is anterior, is provided with seat 19 and driver's cabin 18, is provided with the tanker 17 as the grain resettlement section at the rear portion, right side of body 13.In the bottom of tanker 17, be equipped with discharge conveyer 26 at fore-and-aft direction.Upright being provided with discharged screw rod 21 at the rear portion of tanker 17.The grain that is stored in the tanker 17 is transported to the rear by discharging conveyer 26, through discharging vertical conveying screw rod 22, the lateral transfer screw rod 23 of screw rod 21, from the outlet 24 of lateral transfer screw rod 23 leading sections to discharges such as trucies.In addition, above body 13, be provided with and prevent tail pipe 61 and the protecting component 81 of discharging screw rod 21 interference.And, on the lateral transfer screw rod 23 of discharging screw rod 21, protective plate 90 is installed at end of downstream side 63 approaching positions with tail pipe 61.

As shown in Figure 3, below the driver's cabin 18 in the place ahead of the body 13 of combine 11, be equipped with above-mentioned engine 34, this engine 34 is housed in the engine room 32.Engine room 32 by above covering, the engine chamber cap (not shown) of front, left and right side constitutes, the back is made up of engine room rear frame 33.On engine room 32, be provided with the peristome (not shown) of the outer gas that is used to be taken into cooling usefulness on the right side, to engine 34, be formed with the air-breathing path (not shown) that sets air cleaner and air suction silencer etc. from the rear lower of driver's cabin 18.

Below, exhaust apparatus 41 is described.As shown in Figure 4, exhaust apparatus 41 is connected with the discharge manifold 36 of engine 34, discharges waste gas after burning, and is the exhaust apparatus that reduces the exhaust sound of following burning.Exhaust apparatus 41 has muffler 42, tail pipe 61, outer conductance and goes into portion 71.

Above-mentioned muffler 42 is described.Above-mentioned muffler 42 is to be connected, to be used to reduce exhaust sound with the discharge manifold 36 of engine 34.As shown in Figure 4, muffler 42 is that cross sectional shape is roughly oval cylindrical body, near a sidepiece, is provided with the silencing end pipe 43 as waste gas outlet.Muffler 42 is configured in the engine room 32, above engine 34, is arranged on the position that the air draft of cooling fan 35 blowing.Because muffler 42 is arranged on the position that the air draft of cooling fan 35 blowing, so, can coolant exhaust muffler 42, simultaneously, can prevent that also dust from accumulating.In addition; As shown in Figure 5; Muffler 42 is to make the left and right directions of length direction towards body 13, and for discharge manifold 36 to the left direction of body 13 skew ground configuration, and connect with the mode that above-mentioned silencing end pipe 43 becomes the direct of travel left side of body 13.

Below above-mentioned tail pipe 61 is described.Above-mentioned tail pipe 61 is connected with the downstream of above-mentioned muffler 42, is what to be used to eject from the waste gas of engine 34.The global shape of tail pipe 61; Extremely shown in Figure 6 like Fig. 4; The upstream-side-end 62 of the part that is connected with the silencing end pipe 43 of muffler 42 from conduct is to the rear extension of body 13, and is then, crooked above body 13 at the rear of the breakthrough part of engine room rear frame 33; And extend in the left side to body 13; Then, rearward extend to the bending in the horizontal direction of the rear of body 13 once more, before and after main frame (shelling portion 15 or tanker 17), disposed the end of downstream side 63 of tail pipe 61 near the central authorities in the place that arrives between tanker 17 and the shelling portion 15.End of downstream side 63, in end view read fortune for horizontal plane to oblique upper with angle beta crooked (Fig. 4), and in vertical view read fortune for fore-and-aft direction to oblique left back (feeding chain side) with angle [alpha] crooked (Fig. 6).That is, with waste gas from end of downstream side 63 (exhaust outlet) the top of body 13 to lateral transfer screw rod 23 opposite sides oblique left back above the mode of discharging dispose.

In addition, shown in figure 15, above-mentioned tail pipe 61 is provided with the mode that the upper end of the outlet of the end of downstream side 63 that is positioned at the highest position becomes the position lower than the lower end of discharging screw rod 21.Through constituting in this wise, even just finish (engine stops) afterwards in operation, under the situation of the tarpaulin that covers rainproof usefulness on the whole machine body 100, the tarpaulin 100 of rainproof usefulness can not contact with tail pipe 61 yet, tarpaulin 100 that can burned rainproof usefulness.

As shown in Figure 4, above-mentioned tail pipe 61 is made up of outer tube 64 and interior pipe 65.In pipe 65 be connected with the silencing end pipe 43 of muffler 42, be the part that waste gas passes through, outer tube 64 be and interior pipe 65 between the part of formation heat insulation layer.Interior pipe 65 is made up of metal straight tube and bend pipe respectively with outer tube 64, and interior pipe 65 is inserted in the outer tube 64.What be inserted in interior pipe 65 in the outer tube 64 fixedly is on the inner face of outside and outer tube 64 of pipe 65 in modes such as welding means interior pipe fixed part being fixed on, and fixes with between interior pipe 65 and outer tube 64, guaranteeing predetermined gap.Gap portion in this between pipe 65 and the outer tube 64 is a heat insulation layer.Above-mentioned gap is communicated with to end of downstream side 63 from the upstream-side-end 62 of tail pipe 61.In addition, in the present embodiment,, also can make the mono-layer tube that only constitutes, perhaps can also make the pipe more than three layers at the arranged outside pipe by interior pipe 65 though tail pipe 61 has been made the bimetallic tube that is made up of outer tube 64 and interior pipe 65.

The shape of the end of downstream side 63 of tail pipe 61 is that the mode of the upstream side of the end that is positioned at outer tube 64, the end with interior pipe 65 constitutes, and in the end of downstream side 63 of tail pipe 61, it is poor to be provided with end position at the end position of outer tube 64 and interior pipe 65.In addition, following structure is made in the end of outer tube 64: through cutting off obliquely, the mode elongated with upper side is outstanding, and rainwater etc. are difficult to be immersed in the tail pipe 61.In the end of downstream side 63 of tail pipe 61, because it is poor to be provided with end position at the end position of outer tube 64 and interior pipe 65, so; If engine 34 work, waste gas is discharged from the downstream of interior pipe 65, so; Because the air-flow of waste gas; Between interior pipe 65 rear ends and outer tube 64, produce negative pressure, between outer tube 64 front ends and interior pipe 65 front portions, suck air, the air of generation downstream direction flows in the gap between interior pipe 65 and outer tube 64.Flow if in air, produce, then can carry out the ventilation of gap, the temperature of the air of gap rises and is suppressed lowly, and the insulation effect between interior pipe 65 and the outer tube 64 improves.Therefore, can suppress the rising of the surface temperature of outer tube 64 low,, also can prevent the influence of heat electric wiring etc. even electric wiring etc. is set near tail pipe 61 ground.In addition, can make rainwater etc. be difficult to be immersed in the tail pipe 61.

The tail pipe 61 of engine room 32 sides is in the shape of upstream-side-end 62; Be to constitute with the end nipple of interior pipe 65 mode from the upstream side of the end of outer tube 64; In the upstream-side-end 62 of tail pipe 61, it is poor to be provided with end position at the end position of outer tube 64 and interior pipe 65.In addition, the gap between interior pipe 65 and the outer tube 64 because in the upstream-side-end 62 of tail pipe 61 with outside gas be communicated with, so even immerse from the end of downstream side 63 of tail pipe 61 at rainwater etc. under the situation of coming in, water also can be discharged from upstream-side-end 62.Therefore, can prevent that rainwater etc. is immersed in the inner and engine 34 of muffler 42 through the gap between interior pipe 65 and the outer tube 64.

At this; Like Fig. 3 and shown in Figure 6; In vertical view, see; Tail pipe 61 is with near the host central, above the drum chamber of shelling portion 15 cover and the shape that disposes of the mode of discharging with angle [alpha] (below be called discharge direction α) to the left back with respect to the main frame direct of travel, and simultaneously, the end of downstream side 63 of tail pipe 61 is positioned near the host central.That is, tail pipe 61 is discharged to discharging direction α from end of downstream side 63 near host central.In addition, as shown in Figure 5, become to cover on the shape that the mode of discharging on angle γ ground disposes (below be called discharge direction γ) that is that height under the situation that turns to the top and open is in a ratio of the top with making drum chamber.

Therefore, because near host central, discharge from end of downstream side 63, so; As shown in Figure 3, can the size A up near main frame periphery (this is the left back bight of main frame) be obtained length, and; Because discharge to discharging direction α, so, can waste gas be discharged to the direction away from the operator; Can reduce the influence (specifically by waste gas blown, adhere to jet-black etc.) of waste gas, also can reduce waste gas the discharge screw rod that is positioned at the main frame right side and the influence of tanker to the operator.In addition, because compare to the top combustion gas,, can prevent to pollute so exhaust can not beaten on drum chamber's cover with the height that drum chamber cover is opened wide when maximum.In addition, preferably get below 30 degree towards the angle [alpha] of the discharge direction on the left of the main frame.

In addition, the outlet of above-mentioned tail pipe is arranged on than discharges on the low position of screw rod.Through constituting in this wise, shown in figure 15, even because under the situation that has covered rainproof cover on the main frame, cover can directly not contact with tail pipe yet, so, can prevent the cover damage.

Below above-mentioned outer conductance gone into portion 71 describe.Above-mentioned outer conductance is gone into portion 71, be outer gas is imported in the interior pipe 65 of tail pipe 61, is reduced the temperature of waste gas by outer gas.The silencing end pipe 43 that on the upstream-side-end 62 of tail pipe 61, is connecting muffler 42, outer conductance are gone into portion 71 and are formed the coupling part between muffler 42 and the tail pipe 61.If waste gas is through interior pipe 65 when engine 34 is worked, then because of the air-flow of waste gas, conductance is gone into portion's 71 generation negative pressure outside, and outer gas is gone into portion 71 from outer conductance peristome is attracted to interior pipe 65.

The upstream-side-end 62 of above-mentioned tail pipe 61 shown in Figure 12 (b), also can be made the structure of opening obliquely.In the past, shown in Figure 12 (a), because with respect to air draft from radiator; The cross section of upstream-side-end 62 is parallelly to be provided with (axle center with respect to outlet 43 and tail pipe 61 meets at right angles); So importing is poor from the efficient of the air draft of radiator, but shown in Figure 12 (b); Through make upstream-side-end 62 opening obliquely with respect to air draft, can efficiently air draft be transported in the tail pipe from radiator.

In addition, shown in figure 13, upstream-side-end 62 is cuts away a part step-likely, the lap of upstream-side-end 62 and outlet 43 is made the semicircle tubular, open side is set towards the radiator fan side, can more cooling air be directed in the tail pipe 61.

Constituting shown in addition, also can image pattern 14 suchly.That is, also can the lap of upstream-side-end 62 and outlet 43 be made and be the structure that V word shape roughly opens wide towards radiator fan side ground.Through constituting in this wise, can more cooling air be directed in the tail pipe 61.

In addition, as shown in Figure 6, outer conductance go into portion 71 be arranged on the approaching engine room 32 of muffler 42 in, and be arranged on the position that the air draft of cooling fan 35 blows to.Because blowing to outer conductance usually, the air draft of cooling fan 35 goes in the portion 71, so, can go into the air that portion 71 imports low temperature from outer conductance, simultaneously, can prevent that dust from accumulating in outer conductance and going into portion 71.

In addition, as shown in Figure 6, with the direction of union tail 61 and silencing end pipe 43 fore-and-aft direction as body 13.Through inserting silencing end pipe 43 in direction along the direction of vibration of engine 34, because the vibration of the silencing end pipe 43 that is caused by the vibration of engine 34 is consistent with direction of insertion, so, be difficult to contact with the interior pipe 65 of tail pipe 61.In order to prevent that silencing end pipe 43 and tail pipe 61 from interfering, the direction of insertion of silencing end pipe 43 is preferably along the direction of the big direction of the vibration of engine 34.

In addition; Made following structure because outer conductance is gone into portion 71: the silencing end pipe 43 that is arranged on the muffler 42 is inserted in the tail pipe 61; Between silencing end pipe 43 and tail pipe 61, guaranteed the gap, so, the flange of muffler 42 and tail pipe 61 need do not connected.Quality as the muffler 42 of vibrating body can not alleviate because do not need flange, because can reduce the vibration of muffler 42, so, can reduce the noise that causes because of vibration.

Below, the supporting of exhaust apparatus 41 is described.To shown in Figure 6, tail pipe 61 can be through

support unit

82,83 by 15 supportings of shelling portion like Fig. 4.As previously discussed, if with exhaust apparatus 41 configuration, be bearing in the top of body 13, then stalk bits etc. are difficult to savings on exhaust apparatus 41.In addition,, guaranteed the interval between tail pipe 61 and the shelling portion 15 fully,, also can prevent Yin Re and the influence that produces even at tail pipe 61 bottoms configurations electric wiring, filling neck etc. at the support that is arranged in shelling portion 15 of tail pipe 61.

Above-mentioned support unit 82 is supporting the vertical 61a of portion in the above-below direction extension of tail pipe.On the other hand, above-mentioned support unit 83 is supporting the transverse part 61b that extends in the horizontal direction of tail pipe.Because support at a plurality of positions, so, become more firmly by 15 supportings of shelling portion.In addition, in the present embodiment,, also can make the structure that supports more than the position at three though supporting at two positions by support unit.

Below describe discharging screw rod 21.As shown in Figure 1, discharge screw rod 21 and have vertical conveying screw rod 22 and lateral transfer screw rod 23.As shown in Figure 7, the root side of lateral transfer screw rod 23 can be connected with the top of vertical conveying screw rod 22 at above-below direction freely rotationally.At the sidepiece of vertical conveying screw rod 22, give prominence to and be provided with carriage 55, at the sidepiece of lateral transfer screw rod 23, outstanding being provided with carriage 56.End as the oil cylinder 51 of above-below direction driving mechanism can be installed on the above-mentioned carriage 55 freely rotatably, and the other end of oil cylinder 51 can be installed on the above-mentioned carriage 56 freely rotatably.Through stretching of oil cylinder 51, discharge screw rod 21 in the above-below direction pitching.In addition, on lateral transfer screw rod 23, be provided with the conduct rotary current potential meter 53 of angle detection mechanism up and down, detect the last lower angle of discharging screw rods 21 by rotary current potential meter 53.

As shown in Figure 7, at the middle part of above-mentioned vertical conveying screw rod 22, outer build-in is being decided horizontal gear 57.Be provided with executing agency 52 in body 13 sides, on the rotating shaft of executing agency 52, be provided with horizontal gear 58 as the horizontal direction driving mechanism.Horizontal gear 57 is meshing with horizontal gear 58, and through making executing agency's 52 actions, vertically conveying screw rod 22 and lateral transfer screw rod 23 circle round integratedly in the horizontal direction.Be provided with rotary current potential meter 54 coaxially with horizontal gear 58 as level angle testing agency.Detect the level angle of discharging screw rod 21 by rotary current potential meter 54.In addition, above-mentioned up and down angle detection mechanism and above-mentioned level angle testing agency except rotary current potential meter, also can use anglec of rotation testing agencies such as resolver, rotary encoder.

Below, protecting component 81 is described.Like Fig. 1 to Fig. 6 and shown in Figure 8, above the body 13 of combine 11, be provided with protecting component 81.Protecting component 81 is when discharging screw rod 21 near tail pipe 61, to discharge screw rod 21 can not prevent tail pipe 61 contiguously and discharge the parts that screw rod 21 is interfered with tail pipe 61.The installation site of protecting component 81 and shape are got such position and shape: obtained might be corresponding with the position that tail pipe 61 is interfered discharge screw rod 21 on after lower angle and the level angle; And; Discharging before screw rod 21 invades on this lower angle and level angle, lateral transfer screw rod 23 is compared elder generation and is contacted with protecting component 81 with tail pipe 61.

Specifically, protecting component 81 is with metal pipe or rod-like members or the band plate-like parts general curved one-tenth word of falling U shape ground formation.End with pipe; As shown in Figure 4; The lower position in the rear end of tail pipe 61, as shown in Figure 6, in the position of the specific length of having left the degree that exhaust can directly not get to from the rear end of tail pipe 61; Uprightly be arranged on regularly on the framework between tanker 17 and the shelling portion 15, and from then on framework extends in vertical direction to the top of body 13.And, as shown in Figure 5, from the position of the roughly the same height in rear end of tail pipe 61, bend to " く " word shape, extend to the oblique left back of body 13 and be provided with, formed horizontal protecting component 81a.Then, crooked downwards in the place of the rear portion of horizontal protecting component 81a arrival with the roughly the same height in upper end of tanker 17, extend in vertical direction, formed vertical protecting component 81b.Because vertical protecting component 81b is set downwards if continue to extend; Then can run into shelling portion 15; So; In front view, see to bend to roughly crank-like, in vertical view, see, be to extend downwards as the shape that roughly becomes straight line the lower end to be fixed on the mount pad on the side, right side that is arranged at shelling portion 15 with being provided with.

Like this, protecting component 81 is configured in the right back of exhaust apparatus 41, and horizontal protecting component 81a is configured in than on the high position, the upper end of the end of downstream side 63 of tail pipe 61.At this, like Fig. 4 and shown in Figure 8, tail pipe 61 sees in end view, be with respect to the body horizontal direction to the angled β in top (below be called discharge direction β) the shape that disposes of the mode of discharging.And protecting component 81 is configured to parallel with the discharge direction β of tail pipe 61.Specifically, the length direction of the horizontal protecting component 81a of protecting component 81 and the discharge direction β of tail pipe 61 are disposed abreast.In addition, (vertically protecting component 81b) is as shown in Figure 6 from the end of downstream side 63 of tail pipe 61 to the protecting component 81 of discharging direction β, in vertical view, sees to be spaced apart size B.

Therefore, as shown in Figure 8, though waste gas is discharged to discharging direction β from the end of downstream side 63 of tail pipe 61, this waste gas is not directly beaten on protecting component 81.On the other hand; The lateral transfer screw rod 23 of discharging screw rod 21 is being carried out under the situation of rotating operation; Even make lateral transfer screw rod 23 near protecting component 81; That is to say that even lateral transfer screw rod 23 is rotated to the upper left side along horizontal protecting component 81a from screw rod reception position (solid line shown in Figure 8), lateral transfer screw rod 23 is also moving with discharge direction β abreast; Even with the position contacting of horizontal protecting component 81a and vertical protecting component 81b, lateral transfer screw rod 23 also be between position (double dot dash line shown in Figure 8) more than size B.

In addition, as shown in Figure 6, protecting component 81 is configured to parallel with the discharge direction α of tail pipe 61.That is, as previously discussed, protecting component 81 sees it is the shape that roughly becomes " one " word in vertical view, and protecting component 81 sees that in vertical view the discharge direction α that is configured to tail pipe 61 is parallel.Therefore, can compactly protecting component 81 be configured on the body 13, can effectively utilize the space on the body 13.

Below protective plate 90 is described.Like Fig. 8 and shown in Figure 11, protective plate 90 is with the metallic plate bending of rectangle, cross sectional shape is formed the roughly shape of roughly descending demifacet of C word shape ground covering lateral transfer screw rod 23.In addition, protective plate 90 also can constitute cylindric, makes the structure of the whole periphery that covers lateral transfer screw rod 23.In addition, on protective plate 90, implemented the heat-resisting japanning of black, even be contained in jet-black in the waste gas attached on the protective plate 90, the surface contaminants of protective plate 90 is unshowy yet.In addition; Be not only protective plate 90; Near the end of downstream side 63 of whole outer surface through making lateral transfer screw rod 23 or the tail pipe 61 when taking in lateral transfer screw rod 23 colors are black or near the color of jet-black, also can make the dirt on protective plate 90 surfaces unshowy more.

Above-mentioned protective plate 90 is installed on the lateral transfer screw rod 23 of discharging screw rod 21.Specifically; Protective plate 90; Lateral transfer screw rod 23 in being in the position of taking in lateral transfer screw rod 23 be near position (top of the end of downstream side 63) end of downstream side 63 of tail pipe 61; Between lateral transfer screw rod 23 and protecting component 81, install with the following bottom of protective plate 90 and end of downstream side 63 mode in opposite directions of tail pipe 61.And the shape of protective plate 90 is not limited to present embodiment, as long as can cover near the position of the end of downstream side 63 of tail pipe 61.

At this; As shown in Figure 8; On the installation site of the protective plate 90 of lateral transfer screw rod 23, in radiation direction at interval, fixing a plurality of (being 6 in the present embodiment) long nuts (perhaps bolt) 91,91 through welding etc. with predetermined angular (roughly 90 degree) ...Likewise, protective plate 90 with long nut 91,91 ... On the position in opposite directions, offer bolt hole.That is, on lateral transfer screw rod 23, with the leading section and rearward end position in opposite directions of protective plate 90 on, fixing 6 long nuts 91,91 through welding etc..On the other hand, on protective plate 90, with the long nut 91,91 of lateral transfer screw rod 23 ... On the consistent location, be equipped with bolt hole.And, make the long nut inserting bolt 92,92 as one man of bolt hole and the lateral transfer screw rod 23 of protective plate 90 ..., protective plate 90 is installed on the lateral transfer screw rod 23.And the installation method of protective plate 90 is not limited to present embodiment, goes up as long as protective plate 90 can be fixed on horizontal protecting component 81a.

Through installing in this wise, shown in figure 11, between being mounted to respect to the outer peripheral face of lateral transfer screw rod 23, protective plate 90, between protective plate 90 and lateral transfer screw rod 23, forms gap 93 across the length of long nut 90.Therefore, between protective plate 90 and lateral transfer screw rod 23, form gap 93, the ability between is heat insulation, reduces heat from the conduction of protective plate 90 to horizontal conveying screw rod 23.In addition, also can be between the outer peripheral face of protective plate 90 and lateral transfer screw rod 23, to clamp heat-insulating material maybe with the double structure on the outer peripheral face of lateral transfer screw rod 23 that directly is sticked of the heat-insulating material with stable on heating buffer unit of doing.

And, like Fig. 8 and shown in Figure 10, discharge the lateral transfer screw rod 23 of screw rod 21, because operation, sometimes near protecting component 81.Promptly; Though can make lateral transfer screw rod 23 and the top of horizontal protecting component 81a and vertically the side of protecting component 81b is approaching; But at this, from the end of downstream side 63 of tail pipe 61 during to Fig. 8 and direction of arrow combustion gas shown in Figure 10, waste gas is covered by protective plate 90; So, can prevent to beat on the lateral transfer screw rod 23 of discharging screw rod 21.In addition, because protective plate 90 installs with the mode between lateral transfer screw rod 23 and protecting component 81, so, can prevent that protective plate 90 from bumping against on the protecting component 81, discharging lateral transfer screw rod 23 distortion of screw rod 21.

As previously discussed, the combine 11 that the present invention relates to possesses: the tanker 17 of the paddy after storage harvesting, shelling, the sorting; One end with carry be connected at the engine on the body 34, the other end extends setting between shelling portion 15 and tanker 17, comprise the exhaust apparatus 41 of muffler 42 and tail pipe 61 etc.; Wherein, supporting the tail pipe 61 that the upstream side at above-mentioned exhaust apparatus 41 is connected with the discharge manifold 36 of engine 34 by being arranged on

support unit

82,83 in the shelling portion 15.Through constituting in this wise, because import the air draft from radiator, institute is so that the surface temperature reduction of tail pipe 61.In addition, prevented that dust from piling up on muffler pipe.In addition, because by 15 supportings of the few shelling portion of vibration, so, improved the durability of tail pipe 61.In addition, because the durability of tail pipe 61 has improved, so, can use light material.

In addition, above-mentioned exhaust apparatus 41 possesses: the muffler 42 that in the engine room that is arranged on body the place ahead 32, is being connected with engine 34; Be connected with the downstream of above-mentioned muffler 42, be configured in the body top, eject tail pipe 61 from the waste gas of engine 34; In above-mentioned engine room 32, be arranged on the above-mentioned tail pipe 61, the outer conductance that the outer gas in the engine room 32 is imported in the tail pipe 61 is gone into portion 71.Through constituting in this wise, the mud of rolling in the process of moving etc. is difficult to hang on the exhaust apparatus 41, has prevented that quilt such as mud from embracing to exhaust apparatus 41 intrusions such as interior or mud.Therefore, can prevent to embrace in exhaust apparatus 41 or the rideability reduction of the combine 11 that intrusions such as mud causes because of quilts such as mud.

In addition, because exhaust apparatus 41 is configured in the top of body, so the waste gas of discharging from tail pipe 61 does not blow on the ground of below of body, can prevent around combine 11, to roll dust etc. because of waste gas.

In addition; In engine room 32, be arranged on the tail pipe 61 though outer conductance is gone into portion 71, the outer gas in the engine room 32 is imported in the tail pipe 61, because the outer gas in the engine room 32 has been removed stalk bits etc.; So, do not need conductance outside covering part to be set near going into the peristome of portion 71.Therefore, can simplify the structure that outer conductance is gone into portion 41, simplify the structure of exhaust apparatus.

In addition, will be from the discharge direction of the outlet 63 of above-mentioned tail pipe 61, with in vertical view, see from body all around the central portion mode of discharging to the bight, the outside, rear of above-mentioned shelling portion 15 constitute.Through constituting in this wise, can be to direction combustion gas away from pilot set and air entry.In addition, can obtain enough distances that waste gas can spread after discharging from tail pipe 61.

In addition, combine of the present invention possesses: the tanker 17 of the paddy after storage harvesting, shelling, the sorting; Can dispose, discharge the discharge screw rod 21 of paddy freely rotationally from above-mentioned tanker 17 at above-below direction and horizontal direction; One end with carry be connected at the engine on the body 34, the other end extends setting between shelling portion 15 and tanker 17, comprise the exhaust apparatus 41 of muffler 42 and tail pipe 61 etc.; Wherein, Be configured in shelling portion 15 tops with outlet 63, the mode of discharging direction and becoming the oblique rear of body of discharge screw rod 21 opposition sides when taking in is constituted above-mentioned tail pipe 61.

In addition, the outlet 63 of above-mentioned tail pipe 61, in the fore-and-aft direction substantial middle portion of body, the lateral transfer screw rod 23 of the discharge screw rod 21 when taking in is compared and is configured in the below.Through constituting in this wise, the front end of tail pipe 61 can not tangle when depositing garage etc. in.In addition, when depositing in, waste gas can not beaten on ceiling or wall etc., can it not made dirty.In addition, even when depositing in or after the end of job, the tarpaulin 100 of rainproof usefulness is covered on whole machine body, the tarpaulin 100 of rainproof usefulness can not contact with tail pipe 61 yet, can be because of the tarpaulin 100 of the burned rainproof usefulness of heat of tail pipe 61.

In addition, higher than the end of downstream side of above-mentioned tail pipe 61, see that in vertical view the discharge direction with tail pipe 61 disposes protecting component 81 abreast.Through constituting in this wise, can prevent tail pipe 61 and discharge screw rod 21 interference by protecting component.

Embodiment 2

Following use figure describes the second embodiment of the present invention.

Use figure describes the related combine of present embodiment.Figure 16 is the unitary side view of combine; Figure 17 is the front view of combine, and Figure 18 is the vertical view of combine, and Figure 19 is the concise and to the point end view of exhaust apparatus; Figure 20 is the concise and to the point front view of exhaust apparatus, and Figure 21 is the concise and to the point vertical view of exhaust apparatus.

At first, the overall structure to combine 111 describes.To shown in Figure 180, combine 111 is equipped with body (underframe) 113 on the crawler travel device 112 that supporting left and right sides crawler belt forms, be equipped with engine 134 (with reference to Figure 19) on the anterior right side of this body 113 like Figure 16.In the place ahead of body 113, be equipped with the driving force of engine 134 is delivered to the gearbox 131 (with reference to Figure 21) of crawler travel device 112 through speed change, on gearbox 131, be provided with the axletree of the driving wheel of crawler travel device 112.In addition; Be provided with reaping part 114 in the front portion of body 113; Top at body 113; Be provided with sorting portion 116 in the left side of travel direction, be provided with the shelling portion 115 that possesses threshing cylinder and feeding chain 115a etc. on the top of sorting portion 116, be equipped with first conveyer and second conveyer in the bottom of sorting portion 116.Front portion, right side on the top of body 113 is provided with seat 119, is provided with at the rear portion, right side of body 113 as temporary transient and stores paddy and to the top inhalator 117 of the grain resettlement section that pocket is discharged.Temporarily be stored in this top inhalator 117 through the tube 124 of winnowing from first conveyer by above-mentioned sorting portion 116 selected grain.In addition, turn back to the front portion of sorting portion 116 through secondary reduction device 120 from second conveyer.The bottom of inhalator 117 is provided with the outlet 117a that is used for to discharges such as pockets on above-mentioned top.In addition, on outlet 117a, be equipped with shutter,, therefore, can and close as required when changing pocket, can under obsolete situation, close through operating this shutter switch freely.In addition, the sidepiece at outlet 117a is equipped with the suspending rod that is used to hang pocket.

Shown in figure 18, the lower front at the body 113 of combine 111 is equipped with above-mentioned engine 134, and this engine 134 is housed in the engine room 132.Engine room 132 by above covering, the engine chamber cap (not shown) of front, left and right side constitutes, and the back is made up of engine room rear frame 133.On engine room 132, on the right side, be provided with the peristome (not shown) of the outer gas that is used to be taken into cooling usefulness, to engine 134, formed the air-breathing path (not shown) that sets air cleaner and air suction silencer etc. from the rear lower of seat 119.

Below, exhaust apparatus 141 is described.Shown in figure 19, exhaust apparatus 141 is the exhaust apparatus that are connected, discharge waste gas after burning with the discharge manifold 136 of engine 134, make the exhaust sound reduction of following outburst.Exhaust apparatus 141 has muffler 142, tail pipe 161, outer conductance and goes into portion 171.

Above-mentioned muffler 142 is described.Above-mentioned muffler 142 is to be connected, to be used to reduce exhaust sound with the discharge manifold 136 of engine 134.Shown in figure 19, muffler 142 is cylindrical body of cross sectional shape sub-elliptical, near a sidepiece, is provided with the silencing end pipe 143 as waste gas outlet.Muffler 142 is configured in the engine room 132, and on the position that the air draft that is arranged on cooling fan 135 above the engine 134 is being blown.Because muffler 142 is arranged on the position that the air draft of cooling fan 135 blowing, so, can coolant exhaust muffler 142, simultaneously, can prevent that also dust from accumulating.In addition; Shown in figure 20; Muffler 142 is to make the left and right directions of length direction towards body 113; And for discharge manifold 136 to the left direction of body 113 skew ground configuration, and the mode in left side that becomes the direct of travel of body 113 with above-mentioned silencing end pipe 143 connects.

Below above-mentioned tail pipe 161 is described.Above-mentioned tail pipe 161 is connected with the downstream of above-mentioned muffler 142, is what to be used to eject from the waste gas of engine 134.The global shape of tail pipe 161; Extremely shown in Figure 21 like Figure 19; The upstream-side-end 162 of the part that is connected with the silencing end pipe 143 of muffler 142 from conduct to the rear of body 113 to extension, then, crooked above body 113 at the rear of the breakthrough part of engine room rear frame 133; And extend in the left side to body 113; Then, rearward extend to the bending in the horizontal direction of the rear of body 113 once more, before and after main frame (shelling portion 115 or top inhalator 117), disposed the end of downstream side 163 of tail pipe 161 near the central authorities in the place that arrives between top inhalator 117 and the shelling portion 115.End of downstream side 163, in end view read fortune for horizontal plane to oblique upper with angle beta crooked (Figure 19), and in vertical view read fortune for fore-and-aft direction to oblique left back (feeding chain side) with angle [alpha] crooked (Figure 21).

In addition, above-mentioned tail pipe 161 the above-mentioned secondary reduction device 120 and the tube 124 of winnowing nearby to above configuration round.That is, above-mentioned tail pipe 161 be with to above approaching with the place ahead of secondary reduction device 120 front ends near the crooked position, near the position of horizontal direction rear extension, be configured in its side (direct of travel left side) up with the tube 124 approaching modes of winnowing.Like this, through the secondary reduction device 120 and the tube 124 of winnowing nearby dispose above-mentioned tail pipe 161, can the heat of waste gas be transmitted to the secondary reduction device 120 and tube 124 inside of winnowing, the moist material that heating is inner and make its drying reduces and stops up.

Shown in figure 19, above-mentioned tail pipe 161 is made up of outer tube 164 and interior pipe 165.In pipe 165 be connected with the silencing end pipe 143 of muffler 142, be the part that waste gas passes through, outer tube 164 be and interior pipe 165 between the part of formation heat insulation layer.Interior pipe 165 and outer tube 164 are made up of metal straight tube and bend pipe respectively, and interior pipe 165 is inserted in the outer tube 164.Being inserted in the fixing of interior pipe 165 in the outer tube 164, is on the inner face of outside and outer tube 164 of pipe 165 in the welding means interior pipe fixed part being fixed on, and fixes with between interior pipe 165 and outer tube 164, guaranteeing predetermined gap.Gap portion in this between pipe 165 and the outer tube 164 is a heat insulation layer.Above-mentioned gap is communicated with to end of downstream side 163 from the upstream-side-end 162 of tail pipe 161.In addition, in the present embodiment,, also can make the mono-layer tube that only constitutes, perhaps can make the pipe more than three layers at the arranged outside pipe by interior pipe 165 though tail pipe 161 has been made the bimetallic tube that is made up of outer tube 164 and interior pipe 165.

The shape of the end of downstream side 163 of tail pipe 161 is that the mode of the upstream side of the end that is positioned at outer tube 164, the end with interior pipe 165 constitutes, and in the end of downstream side 163 of tail pipe 161, it is poor to be provided with end position at the end position of outer tube 164 and interior pipe 165.In addition, following structure is made in the end of outer tube 164: through cutting off obliquely, upper side is outstanding with elongated mode, and rainwater etc. are difficult to be immersed in the tail pipe 161.In the end of downstream side 163 of exhaust tail 161, because it is poor to be provided with end position at the end position of outer tube 164 and interior pipe 165, so; If engine 134 work, waste gas is discharged from the downstream of interior pipe 165, so; Because the air-flow of waste gas; Between interior pipe 165 rear ends and outer tube 164, produce negative pressure, between outer tube 164 front ends and interior pipe 165 front portions, suck air, gap between interior pipe 165 and outer tube 164 produces the flowing of air of downstream direction.Flow if in air, produce, then can carry out the ventilation of gap, the temperature of the air of gap rises and is suppressed lowly, and the insulation effect between interior pipe 165 and the outer tube 164 improves.Therefore, can suppress the rising of the surface temperature of outer tube 164 low,, also can prevent the influence of heat electric wiring etc. even electric wiring etc. is set near tail pipe 161 ground.In addition, can make rainwater etc. be difficult to be immersed in the tail pipe 161.

The tail pipe 161 of engine room 132 sides is in the shape of upstream-side-end 162; Be to constitute with the end nipple of interior pipe 165 mode from the upstream side of the end of outer tube 164; In the upstream-side-end 162 of tail pipe 161, it is poor to be provided with end position at the end position of outer tube 164 and interior pipe 165.

In addition, above-mentioned tail pipe 161 is to cut off the cross section obliquely and form guiding parts in the shape of upstream-side-end 162.Be provided with the long side of this guiding parts and air draft mode in opposite directions from radiator.Through constituting in this wise, can increase outer gas import volume, realize that the surface temperature of tail pipe reduces.

In addition, the gap between interior pipe 165 and the outer tube 164 because the upstream-side-end 162 of tail pipe 161 with outside gas be communicated with, so, even immerse from the end of downstream side 163 of tail pipe 161 at rainwater etc. under the situation of coming in, also can be from upstream-side-end 162 discharge waters.Therefore, can prevent that rainwater etc. is immersed in muffler 142 inside or the engine 134 through the gap between interior pipe 165 and the outer tube 164.

At this; Shown in figure 18; See that in vertical view tail pipe 161 is with near the host central, above the drum chamber of shelling portion 115 cover and the shape that disposes of the mode of discharging with angle [alpha] (below be called discharge direction α) to the left back with respect to the main frame direct of travel; Simultaneously, the end of downstream side 163 of tail pipe 161 is positioned near the host central.That is, tail pipe 161 is discharged to discharging direction α from end of downstream side 163 near host central.In addition, shown in figure 21, become with make drum chamber cover on height under the situation that turns to the top and open to be in a ratio of the shape that the mode that is angle γ ground (below be called discharge direction γ) discharge of top disposes.

Therefore, because near host central, discharge from end of downstream side 163, so; Shown in figure 18, can the size A up near main frame periphery (this is the left back bight of main frame) be obtained length, and; Because discharge to discharging direction α, so, can waste gas be discharged to the direction away from the operator; Can reduce the influence (specifically by waste gas blown, adhere to jet-black etc.) of waste gas, also can reduce the influence of waste gas the top inhalator 117 that is positioned at the main frame right side to the operator.In addition, because compare to the top combustion gas,, can prevent to pollute so exhaust can not beaten on drum chamber's cover with the height that drum chamber cover is opened wide when maximum.In addition, towards the angle [alpha] of the discharge direction in main frame left side preferably below 30 degree.

Below above-mentioned outer conductance gone into portion 171 describe.Above-mentioned outer conductance is gone into portion 171, be outer gas is imported in the interior pipe 165 of tail pipe 161, is reduced the temperature of waste gas by outer gas.The silencing end pipe 143 that on the upstream-side-end 162 of tail pipe 161, is connecting muffler 142, outer conductance are gone into portion 171 and are formed the coupling part between muffler 142 and the tail pipe 161.If waste gas is through interior pipe 165 when engine 134 is worked, then because of the air-flow of waste gas, conductance is gone into portion's 171 generation negative pressure outside, and outer gas is gone into portion 171 from outer conductance peristome is attracted to interior pipe 165.

The upstream-side-end 162 of above-mentioned tail pipe 161 be basically with the general structure of the related upstream-side-end of first embodiment 62, also can above-mentioned upstream-side-end 162 be made Figure 12 (b), Figure 13, structure shown in Figure 14.

In addition, shown in figure 19, outer conductance go into portion 171 be arranged on the approaching engine room 132 of muffler 142 in, and be arranged on the position that the air draft of cooling fan 135 blows to.Because blowing to outer conductance usually, the air draft of cooling fan 135 goes in the portion 171, so, can go into the air that portion 171 imports low temperature from outer conductance, simultaneously, can prevent that dust from accumulating in outer conductance and going into portion 171.

In addition, shown in figure 20, with the direction of union tail 161 and silencing end pipe 143 fore-and-aft direction as body 113.Through inserting silencing end pipe 143 in direction along the direction of vibration of engine 134, because the vibration of the silencing end pipe 143 that is caused by the vibration of engine 134 is consistent with direction of insertion, so, be difficult to contact with the interior pipe 165 of tail pipe 161.In order to prevent that silencing end pipe 143 and tail pipe 161 from interfering, the direction of insertion of silencing end pipe 143 is preferably along the direction of the big direction of the vibration of engine 134.

In addition; Made following structure because outer conductance is gone into portion 171: the silencing end pipe 143 that is arranged on the muffler 142 is inserted in the tail pipe 161; Between silencing end pipe 143 and tail pipe 161, guaranteed the gap; So, need not connect the flange of muffler 142 and tail pipe 161.Quality as the muffler 142 of vibrating body can not alleviate because do not need flange, because can reduce the vibration of muffler 142, so, can reduce the noise that causes because of vibration.

Below, the supporting of exhaust apparatus 141 is described.To shown in Figure 21, tail pipe 161 can be through support unit 182,183,184 by 15 supportings of shelling portion like Figure 19.As previously discussed, if with exhaust apparatus 141 configuration, be bearing in the top of body 113, then stalk bits etc. are difficult to savings on exhaust apparatus 141.In addition,, guaranteed the interval between tail pipe 161 and the shelling portion 115 fully,, also can prevent Yin Re and the influence that produces even at tail pipe 161 bottoms configurations electric wiring, filling neck etc. at the support that is arranged in shelling portion 115 of tail pipe 161.

Be fixedly installed on support unit 182,183 on the right flank of above-mentioned shelling portion 115 and supporting the vertical 161a of portion that the above-below direction at tail pipe 161 extends.On the other hand, the top support unit 184 that is fixedly installed on the right side of above-mentioned shelling portion 115 is supporting the transverse part 161b that extends in the horizontal direction of tail pipe 161.Because support at a plurality of positions like this, so, become more firmly by 115 supportings of shelling portion.In addition, in the present embodiment,, also can make the structure with upper support at two below the position or four positions though supporting at three positions by support unit.

As previously discussed, the combine 111 that the present invention relates to possesses: the top inhalator 117 of the paddy after storage harvesting, shelling, the sorting; One end with carry be connected at the engine on the body 134, the other end extends setting between shelling portion 115 and top inhalator 117, comprise the exhaust apparatus 141 of muffler 142 and tail pipe 161 etc.; Wherein, supporting the tail pipe 161 that the upstream side at above-mentioned exhaust apparatus 141 is connected with the discharge manifold 136 of engine 134 by being arranged on support unit 182,183,184 in the shelling portion 115.Through constituting in this wise, because import the air draft from radiator, institute is so that the surface temperature reduction of tail pipe 161.In addition, prevented that dust from piling up on muffler pipe.In addition, because by 115 supportings of the few shelling portion of vibration, so, improved the durability of tail pipe 161.In addition, because the durability of tail pipe 161 has improved, so, can use light material.

In addition, above-mentioned exhaust apparatus 141 possesses: the muffler 142 that in the engine room that is arranged on body the place ahead 132, is being connected with engine 134; Be connected with the downstream of above-mentioned muffler 142, be configured in the body top, eject tail pipe 161 from the waste gas of engine 134; In above-mentioned engine room 132, be arranged on the above-mentioned tail pipe 161, the outer conductance that the outer gas in the engine room 132 is imported in the tail pipe 161 is gone into portion 171.Through constituting in this wise, the mud of rolling in the process of moving etc. is difficult to hang on the exhaust apparatus 141, has prevented that quilt such as mud from embracing to exhaust apparatus 141 intrusions such as interior or mud.Therefore, can prevent to embrace in exhaust apparatus 141 or the rideability reduction of the combine 111 that intrusions such as mud causes because of quilts such as mud.

In addition, because exhaust apparatus 141 is configured in the top of body, so the waste gas of discharging from tail pipe 161 does not blow on the ground of below of body, can prevent around combine 111, to roll dust etc. because of waste gas.

In addition; In engine room 132, be arranged on the tail pipe 161 though outer conductance is gone into portion 171; Outer gas in the engine room 132 is imported in the tail pipe 161; But because the outer gas in the engine room 132 have been removed stalk bits etc., so, do not need conductance outside covering part to be set near going into the peristome of portion 171.Therefore, can simplify the structure that outer conductance is gone into portion 141, simplify the structure of exhaust apparatus.

Utilize possibility on the industry

The present invention can be applied to exhaust apparatus is configured in the technology of combine of body upper.

Claims

1. combine, described combine possesses:

Shelling portion;

Be configured in the side of above-mentioned shelling portion, store the grain resettlement section of the paddy after harvesting, shelling, the sorting;

The exhaust apparatus of combustion gas when exhaust sound is reduced,

It is characterized in that: with the tail pipe of above-mentioned exhaust apparatus,, be configured between above-mentioned shelling portion and the grain resettlement section in the fore-and-aft direction substantial middle portion of body, simultaneously, to the body rear extension.

2. the combine of putting down in writing according to claim 1 is characterized in that: the tail pipe of above-mentioned exhaust apparatus is extended with being inclined upwardly.

3. the combine of being put down in writing according to claim 1 or 2; It is characterized in that: above-mentioned tail pipe from outlet; Arbitrary direction ground towards following scope is provided with, this scope be for the body direct of travel from the rear to only the tilted scope of direction of predetermined angular of arbitrary direction towards the left and right sides.

4. according to each combine put down in writing in the claim 1～3, it is characterized in that: above-mentioned tail pipe portion has halfway at least once changed acclivitous angle.

5. according to each combine put down in writing in the claim 1～4; It is characterized in that: above-mentioned tail pipe; Its upstream-side-end is extended to ground towards the rear for the body direct of travel; Crooked with the part that upstream-side-end is continuous with the mode that tilts towards the top, and then continuous part is crooked with the mode of rearward extending, and then continuous end of downstream side is crooked with the mode of comparing direction inclination to the left and right with part hereto.

6. according to each combine put down in writing in the claim 1～5, it is characterized in that: the end of downstream side of above-mentioned tail pipe, its cross section cuts off with being tilted, and the mode elongated with upper side is outstanding.

7. according to each combine put down in writing in the claim 1～6, it is characterized in that: near above-mentioned tail pipe, be provided with the protecting component of the lateral transfer screw rod interference that prevents and discharge screw rod.