KR101890173B1 - Exhaust structure for combine - Google Patents

Abstract

The present invention has been made in view of the above problems, it is an object of the present invention to provide an air conditioner which is provided with a preliminary mounting portion provided at the front portion of a traveling gas, an operating portion provided at the rear of the preliminary mounting portion, The exhaust gas is prevented from moving toward the operator of the operation section and the exhaust gas from the exhaust pipe is discharged to the outside through the entirety of the exhaust pipe, It is difficult to deposit mud.
The exhaust pipe XP passes obliquely upward between the threshing device 4 and the collecting part 5 from the exhaust discharge pipe 67A of the engine 60 and the exhaust outlet 70C of the exhaust pipe XP is discharged from the exhausted rice straw And an exhaust structure disposed above the treatment section 8 (54).
The present invention also provides a driving apparatus for a traveling vehicle, comprising a pre-loading unit provided in a front portion of a running vehicle, an operating unit provided in the rear of the pre-loading unit, a threshing unit juxtaposed laterally in the rear of the driving unit, The exhaust structure of the combine having the exhaust pipe for exhausting the exhaust gas from the engine installed in the downward direction is hard to move the exhaust gas toward the operator of the operation section and makes it difficult for the rice straw scum or mud to accumulate over the entire exhaust pipe.
The exhaust pipe XP is passed obliquely upward between the threshing device 4 and the recovery part 5 from the exhaust part 67 of the engine 60 and is supported by the housing 4S constituting the threshing device 4 And the exhaust structure was made.
It is also an object of the present invention to provide a hydraulic circuit of a hydraulic cylinder for lifting and lowering a cut-off portion in a compact manner, so as to make it easy to avoid dust adhesion of the operation valve.
A working oil tank 132 is attached to the front end portion of the base frame 103 and a backward falling portion for dropping the dust falling from the conveying path R for conveying the waste grains to the threshing device 104 toward the front of the base frame 103 And is disposed below the shoot 131. The upper end side of the working oil tank 132 protrudes upward from the base frame 103. The operating valve 142 for the hydraulic cylinder 130 is disposed at a position higher than the upper end 132B of the operating oil tank 132 below the backward chute 131. [

Description

Exhaust structure of combine {EXHAUST STRUCTURE FOR COMBINE}

The present invention relates to a driving apparatus for an automotive vehicle, which comprises a preloading unit installed at a front portion of a running vehicle, an operating unit provided at the rear of the preloading unit, a trolley unit arranged in the left- And an exhaust pipe for exhausting the exhaust gas from the engine. [0002] The present invention relates to an exhaust structure of a combine.

In addition, the present invention provides a driving apparatus for a vehicle, comprising: a preliminary mounting portion provided at a front portion of a traveling body; an operating portion provided at the rear of the preliminary mounting portion; a thrashing device juxtaposed laterally to the rear of the driving portion; And an exhaust pipe for exhausting the exhaust gas from the engine.

In addition, the present invention is characterized in that, in the front part of the base frame of the running vehicle, the preload frame is pivotally supported so as to be vertically movable, a hydraulic cylinder connected to the preliminary frame and the base frame for lifting and lowering the cut- To a combine equipped with a threshing device installed on the base frame so as to be supplied with cut grain from the mounting.

As prior art document information related to the exhaust structure of this kind of combine, there is Patent Document 1 described below. In the combine disclosed in Patent Document 1, the exhaust outlet of the exhaust pipe is disposed on the upper surface of the threshing device for the purpose of suppressing the exhaust gas of the engine from moving toward the operator of the operation portion.

In the combine described in Patent Document 1, the exhaust pipe has a linear front half portion extending in the front-rear direction in parallel with the crawler-type traveling device, and a substantially straight rear half portion extending in the vicinity of the rear end portion of the crawler- And the bent portion between the front half portion and the rear half portion is disposed adjacent to the duct for introducing the outside air into the threshing device by the sorting fan so that a part of the outside air introduced from the duct is introduced into the threshing device through the upper surface of the bending portion, So that it is difficult for the rice straw scraps to accumulate in the bent portion of the exhaust pipe.

As the combine described above, there has conventionally been one described in Patent Document 2, for example. In the combine described in Patent Document 2, a vehicle body frame as a body frame, a cutter conveying apparatus as a pre-attachment portion, a cutout frame as a pre-attachment frame, and a lift cylinder as a hydraulic cylinder are provided.

Japanese Patent Application Laid-Open No. 2008-206439 (paragraphs 0006-0010, Fig. 1) Japanese Patent Application Laid-Open No. 2007-117019

However, in the exhaust structure of the combine described in Patent Document 1, since the front half of the exhaust pipe is horizontally extended below the threshing device and the collecting portion, there is a possibility that the rice straw scum or mud may accumulate on the upper surface of the same portion.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an exhaust emission control device for an exhaust emission control device, which is capable of suppressing the exhaust gas of an engine from moving toward an operator of an operation section, To provide an exhaust structure of the combine which is difficult to be deposited.

Further, in the combine described above, when the operation valve for the hydraulic cylinder is disposed near the hydraulic cylinder so as to obtain a compact hydraulic circuit for the hydraulic cylinder, the support bar for the operation valve is supported by the base frame Even if the operating valve is not installed directly on the base frame, the operating valve is positioned near the traveling device mounted on the base frame, so that the vibration or soil scattered by the traveling device is attached to the operating valve .

The present invention is to provide a combine capable of compactly obtaining a hydraulic circuit and avoiding dust adhesion of the operation valve.

In the characteristic structure of the exhaust structure of the combine according to the present invention,

A recovery unit installed in a rear portion of the running unit, a trolley unit arranged in the left and right direction in the rear of the operation unit, and a recovery unit for recovering the curl, And an exhaust pipe for discharging the exhaust gas from the engine. The exhaust gas purifier of claim 1,

Wherein a rear end portion of the recovery portion is located forward of a rear end portion of the threshing device and the exhaust pipe is passed obliquely upward from the exhaust portion of the engine between the threshing device and the recovery portion, And the exhaust outlet of the exhaust pipe is located above the discharged straw treatment unit.

In the exhaust structure of the combine according to the above-described characterizing feature, since the exhaust pipe passes obliquely upward between the thrashing device and the recovery part from the exhaust part of the engine, the exhaust pipe is arranged at a sufficiently higher position than the crawler type traveling device, It is possible to obtain the effect that the rice straw scum is hardly accumulated over the entire exhaust pipe. In addition, since the exhaust outlet of the exhaust pipe is disposed above the exhausted rice straw processing portion, the tendency of the exhaust gas of the engine to move toward the operator of the operation portion is also suppressed, and the rice straw debris discharged from the exhausted rice straw processing portion is relatively The situation of meeting the high temperature exhaust is suppressed.

In the present invention, it is preferable that the exhaust pipe has a bent portion, and the bent portion is provided with an introducing portion for introducing outside air into the inside of the exhaust pipe.
In the present invention, it is preferable that the introduction portion is located above the threshing device.
In the present invention, it is preferable that the exhaust pipe has a first pipe portion on the exhaust side of the engine and a second pipe portion extending rearward from the vicinity of the end portion of the first pipe portion.
In the present invention, it is preferable that the first pipe portion extends up to the upper portion of the threshing device.
In the present invention, it is preferable that the first tube portion extends rectilinearly obliquely upward and the second tube portion extends rectilinearly obliquely upward with a gentle gradient than the first tube portion.
In the present invention, it is preferable that an introduction portion for introducing outside air into the exhaust pipe is provided in the continuous installation portion of the first pipe portion and the second pipe portion.
In the present invention, the reducing treatment section for reducing the curling of the water No. 2 to the sorting section of the threshing device is formed to protrude toward the collecting section side on the side of the collecting section of the threshing device, It is suitable if it passes through the position that bypasses above the processing section.
In the present invention, the grain machine for feeding the curled grains thrown by the threshing device to the upper portion of the collecting portion is installed upright from the lower side of the side of the collecting portion of the threshing device, and the first tube portion, And is arranged so as to intersect with the grain machine.
In the present invention, it is preferable that the second tube portion is disposed below the height of the ceiling portion of the collection portion.
In contrast to the configuration in which the second tube portion reaches the height of the ceiling portion of the collecting portion or the height of the ceiling portion exceeds the height of the ceiling portion, the operator who operates the collecting portion or the curved discharge auger or the like inadvertently refers to the second tube portion Concern is suppressed.
In the present invention, it is preferable that the gravity device for feeding the curled grains thrown by the threshing device to the upper portion of the collecting portion is installed upright from the lower side of the side of the collecting portion of the threshing device, It is suitable if it is supported by a stay connected to the housing of the apparatus.
With this structure, at least one stance is shared between the exhaust pipe and the supply cylinder, because a part of the exhaust pipe is supported by the housing of the threshing apparatus by using a stay connecting a part of the supply cylinder to the housing of the threshing apparatus. It is possible to reduce the number of parts for installing the threshing device, and also to simplify the structure near the side of the threshing device.
In the present invention, the reducing treatment section for reducing the curling of the water No. 2 to the sorting section of the threshing device is formed on the side of the collecting section of the threshing device so as to protrude toward the collecting section side, It is preferable that the gap space for avoiding interference between the threshing apparatus and the reduction processing section and the gap space for allowing the passage of the exhaust pipe are formed successively.
With this structure, it is possible to avoid interference of the recovery section with the reduction processing section and the exhaust pipe of the threshing device, and also to simplify the outer shape of the housing of the recovery section, and the natural flow of curling in the recovery section is not hindered.

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Further, the characteristic structure of the exhaust structure of the combine according to the present invention is that,

A recovery unit installed in a rear portion of the running unit, a trolley unit arranged in the left and right direction in the rear of the operation unit, and a recovery unit for recovering the curl, And an exhaust pipe for exhausting exhaust gas from the engine,

A gravity device for supplying the curled grains tumbled by the threshing device to the upper portion of the collecting portion is provided by being raised from the lower side of the side of the collecting portion of the threshing device and subjected to a reduction treatment Wherein the reducing unit is disposed so as to protrude toward the recovery unit on the side of the recovery unit of the threshing unit and the reducing unit is disposed to pass between the threshing unit and the balancing unit, And a return passage that passes through a space enclosed by the grain machine and the reduction processing section and is passed obliquely upward between the threshing device and the recovery section from the exhaust part of the engine and is supported by the housing constituting the threshing device .

In the exhaust structure of the combine according to the above-described characterizing feature, since the exhaust pipe passes obliquely upward between the thrasher and the recovering portion from the exhaust portion of the engine, the exhaust outlet of the exhaust pipe is disposed apart from the operation portion, And the exhaust pipe is arranged at a position sufficiently higher than the crawler type traveling device because the exhaust pipe is passed obliquely upward between the threshing device and the recovery part from the exhaust part of the engine. The effect of arranging the apparatus or the recovery section is that it is difficult for the rice straw debris to be accumulated over the entire exhaust pipe. Further, since the exhaust pipe is supported by the housing constituting the threshing device, compared with the structure in which the exhaust pipe is supported by the housing constituting the collecting portion, the collecting portion can be constructed to be freely swingable around the longitudinal axis relative to the traveling vehicle or the threshing device So that a combine which can be easily maintained for a grazing device installed between the threshing device and the recovery part can be obtained.

In the present invention, it is preferable that an overflow portion that bulges to the threshing device side is provided on the upper portion of the recovery portion, and the upper portion of the exhaust pipe is covered by the bulging portion.
In the present invention, it is preferable that the exhaust pipe is supported by a stay that connects the gravity device to the housing of the threshing device in a region surrounded by the threshing device, the gravity device, and the reduction processing section.
In the present invention, it is preferable that the exhaust pipe has a bent portion, and the bent portion is provided with an introducing portion for introducing outside air into the inside of the exhaust pipe.
In the present invention, it is preferable that the introduction portion is located above the threshing device.
In the present invention, it is preferable that the collecting portion is provided with a recessed portion recessed into a side away from the threshing device in plan view, and the introduction portion is located in the recessed portion as viewed in plan.
In the present invention, it is preferable that the vicinity of the introduction part of the exhaust pipe is supported by a stay connected to the housing of the threshing device.
In the present invention, it is preferable that the exhaust pipe has a first pipe portion on the exhaust side of the engine and a second pipe portion extending rearward from the vicinity of the end portion of the first pipe portion.
In the present invention, it is preferable that the first pipe portion extends up to the upper portion of the threshing device.
In the present invention, it is preferable that an introduction portion for introducing outside air into the exhaust pipe is provided in the continuous installation portion of the first pipe portion and the second pipe portion.
In the present invention, the front portion of the first tube portion is supported by a first stay connected to the housing of the threshing device, and the rear portion of the first tube portion is connected to a second And a front portion of the second tube portion is supported by a third stay connected to the housing of the threshing apparatus and an intermediate portion of the second tube portion is supported by a fourth stay connected to the housing of the threshing apparatus If you are fit.
In the present invention, it is preferable that a plurality of brackets fixed to the exhaust pipe, and the bracket disposed at the rear of the vehicle at most represents a plate-like shape extending in the vehicle width direction, by a plurality of bolts spaced apart in the width direction It is suitable if it is connected to the fourth stay.
In the present invention, it is preferable that the exhaust pipe is extended so as to bypass the reduction processing section upward.
With this configuration, the exhaust pipe is disposed in a narrow space located above the reduction processing unit so as to be sandwiched between the threshing unit and the recovery unit, thereby realizing a combine having a compact structure.
In the present invention, it is preferable that a gap space for avoiding interference between the threshing apparatus and the reduction processing section and a gap space for allowing passage of the exhaust pipe are formed continuously on the side surface of the collecting section.
With this structure, it is possible to avoid interference of the recovery section with the reduction processing section and the exhaust pipe of the threshing device, and to simplify the outer shape of the housing of the recovery section, and the natural flow of the curling in the recovery section is not hindered.
In the present invention, it is preferable that the reducing treatment section includes a semispherical conveying section set up from the threshing apparatus and a transverse conveyance section extending forward from the longitudinal end of the conveying section in the forward and backward directions, And passes through the threshing device.

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 The present invention also relates to an airbag apparatus comprising a preliminary part supported on a front portion of a base frame of a running vehicle so that the preliminary frame can be pivotally lifted and lowered, a hydraulic cylinder connected to the preliminary frame and the base frame for raising and lowering the cut- And a threshing device installed on the base frame so as to supply cut grain from the preliminary part,

Wherein a working oil tank is disposed at a front end portion of the base frame and a dust falling down from a conveying path for conveying the waste grained base to a threshing device is disposed below a backing chute for dropping toward the front of the base frame, Side frame is protruded upward from the base frame,

The operating valve for the hydraulic cylinder is disposed below the bobbin chute at an arrangement height higher than the upper end of the operating oil tank.

According to the configuration of the first aspect of the present invention, while the dust escaping from the conveyance path for the sorted grains is prevented from dropping onto the operation valve by the escape chute, the operation valve is separated upward from the gas- And it is possible to make it difficult for the dust scattered by the traveling device to reach the operation valve. Even when the operating oil tank and the operating valve approach each other and the flow path between the operating oil tank and the operating valve can be shortened and the operating valve is separated from the hydraulic cylinder and the flow path between the operating valve and the hydraulic cylinder becomes long, The entire oil passage can be made not so long.

Therefore, the hydraulic circuit for the hydraulic cylinder can be obtained in an extremely compact state avoiding an excessively long time due to the separation between the operation valve and the base frame, as well as failure or malfunction due to dust adhesion of the operation valve It can be obtained in a difficult and high quality state.

In the second invention, the operating valve is disposed so as to be offset from the center of the working oil tank in the transverse direction of the working oil tank to the transversely outward side of the traveling gas.

According to the configuration of the second aspect of the present invention, it is possible to easily reach the operating valve from the lateral outer side of the running vehicle.

Therefore, it is possible to make it convenient to check and replace the operating valve easily and efficiently from the lateral side of the running vehicle.

In the third invention, a support member extending from the upper portion of the working oil tank in the gas-phase direction and supporting the operation valve at an extended end thereof is provided.

According to the configuration of the third aspect of the present invention, it is possible to provide the support member which is only upwardly extended from the working oil tank, and the operation valve can be disposed above the base frame at a distance larger than the length of the support member.

Therefore, it is possible to obtain inexpensively the adoption of the support member which only extends from the working oil tank, which is easy to avoid attachment of scattered dust from the traveling device to the operation valve.

1 is an entire left side view of a combine having an exhaust structure according to the present invention.
2 is an entire right side view of a combine having an exhaust structure according to the present invention.
3 is an overall plan view of a combine having an exhaust structure according to the present invention.
Fig. 4 is a side view of a right main part mainly showing an exhaust structure according to the present invention. Fig.
5 is a cross-sectional view showing the vicinity of the boundary between the threshing device and the recovery section;
6 is a perspective view showing an installation structure of two pipe portions constituting an exhaust pipe;
7 is a longitudinal sectional view mainly showing a first pipe portion of an exhaust pipe.
8 is a longitudinal sectional view showing a second pipe portion of the exhaust pipe.
9 is a cross-sectional view taken along line IX-IX in Fig. 7 showing a first tube portion.
10 is a cross-sectional view taken along a line XX in Fig. 8 showing a second tube portion.
11 is a cross-sectional view showing an exhaust structure according to another embodiment;
12 is a side view showing the entire combine.
13 is a plan view showing the entire combine.
14 is a plan view showing a traveling gas.
Fig. 15 is a side view showing a cut-out portion. Fig.
16 is a side view showing the arrangement of the operating oil tank and the operating valve.
17 is a perspective view showing a vicinity of an entrance of an operation unit;
Fig. 18A is a longitudinal front elevational view showing a state of use of the lowering and lowering of the elevating step, and Fig. 18B is a longitudinal front elevational view showing the elevating and retracting state of the elevating step. Fig.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[Overall composition of combine]

The combine shown in Figs. 1 and 2 is an example of a combine having an exhaust structure according to the present invention. This combine is generally called a decoupling combine, and includes a base frame 1 formed in a frame shape by each pipe member or the like. A pair of left and right crawler type traveling devices 2 are provided under the base frame 1 Respectively. The front and left front portions of the base frame 1 are provided with a cutter conveying device 3 (an example of a preloading portion) connected in a lifting and pivoting manner and a boarding operation portion 14 An example of a part) is provided. A driving unit 6 is disposed below the boarding operation unit 14. [ In the rear of the boarding operation section 14, a threshing device 4 and a graining storage device 5 (an example of a recovery section) for collecting the curled grains thrown by the threshing device 4 are provided side by side. As described later, in the present embodiment, the graining storage device 5 is constituted by the grain tank 51, but it may be constituted by a packing hopper (not shown).

[Configuration of Gas Frame]

As shown in Fig. 3, on the base frame 1, the balancing device 4 is disposed on the left rear portion and the balancing device 4 is disposed on the left rear portion while being distributed to both sides of the left and right main frames (not shown) A curved storage device 5 is mounted on the rear part and a driving part 6 is provided on the right front part.

The auger 52 for the discharge of the curled product of the curled-state storage device 5 is disposed at the right rear end of the base frame 1 and the driving unit 6 ).

[Configuration of Cutting and Transporting Apparatus]

As shown in Figs. 1 and 2, a tubular pre-loading frame 26 also serving as a transmission case is connected to the cut waste conveying device 3 in a forward downward inclined posture. A tubular drive case 28 is connected to the front end of the preload frame 26 in a laterally long posture. In addition, the pre-loading frame 26 is provided with a standing device 21 for standing upright grain bobbins in a predetermined cutting posture, a clipper-type cutting device 22 for cutting the base of standing upright grain bobbins, And a grain bundle conveyance device 23 that conveys the feed chain 30 to the leading end of the feed chain 30 provided at the lateral outer side of the device 4 is connected.

[Composition of the driving section]

In the driving unit 6 according to the present invention, the engine muffler 67 (an example of the exhaust unit) is provided at an upper portion in the vicinity of the center in the lateral direction of the base body, and is provided below the side panel 15b described later. Thereby, it is difficult for the rice straw scraps and the like to fall on the engine muffler 67. The engine muffler 67 is provided with an exhaust discharge pipe 67A for guiding the exhaust from the engine 60 to the exhaust pipe XP. The exhaust gas discharge pipe (67A) is formed in a bent shape toward the upper rear direction of the inclination.

[Configuration of Auger for Grain Release]

As shown in Figs. 1 to 3, a grain auger 52 for discharging the grain in the grain tank 51 to the outside of the combine is provided at the rear of the grain tank 51. As shown in Fig. The auger 52 for waste grain discharge has a longitudinal section 52A for conveying the curled paper upward from the bottom of the grain tank 51 and a longitudinally extending shaft 52Y for rotating the grain tank 51 at the upper end of the longitudinal section 52A An intermediate portion 52J pivotally supported around the intermediate portion 52J and a transverse portion 52B elongated transversely from the intermediate portion 52J. The transverse section 52B is configured to pivot around the transverse axis X with respect to the intermediate section 52J. The relief operation of the transverse section 52B is performed by the hydraulic drive type extensible cylinder 5S provided between the longitudinal section 52A and the transverse section 52B. In the rest state of the auger 52 for aeration, the middle portion of the horizontal portion 52B can be supported and fixed on the auger pedestal 52H provided in front of the threshing device 4. [

A pair of inclined surfaces 51a and 51b are arranged on the bottom of the grain tank 51 so as to face each other and a second lateral conveyance screw SF4 is disposed at the deepest position where these inclined surfaces 51a and 51b cross each other, As shown in Fig.

The curl in the grain tank 51 is first sent backward by the second lateral feed screw SF4 to be fed to the longitudinal portion 52A outside the grain tank 51 and subsequently to the inside of the longitudinal portion 52A A third paper feed screw SF5 disposed in the horizontal portion 52B and a third lateral feed screw SF6 disposed in the horizontal portion 52B are discharged from the auger 52 for discharging the grain, And the like. The second transverse feed screw SF4 is driven to rotate by the output from the driving unit 6 and the rotational force is transmitted to the third paper feed screw SF5 and the third transverse feed screw SF6 through the bevel gear .

[Configuration of boarding operation part]

2, the boarding operation section 14 is provided with a driver's seat 14S, a front panel 15a, and a side panel 15b. The front panel 15a is provided with a steering operation lever 18 for performing a steering operation of the gas. On the other hand, the side panel 15b is provided with a shift lever 17 for performing forward / backward shift operation of the base. An air cleaner 62a communicating with the intake chamber of the engine 60 is disposed behind the backrest of the driver's seat 14S and a pre-cleaner 62b is disposed above the air cleaner 62a have.

Each of the right and left crawler type traveling devices 2 swings the shift lever 17 provided in the riding operation section 14 in the forward and backward directions to change the stepless speed change operation by the constant hydraulic type stepless speed change device The forward / backward switching operation can be performed. Further, by operating the steering operation lever 18 provided in the boarding operation section 14 to swing in the left-right direction, it is possible to perform the straight-ahead state by the gear type transmission in the mission case (not shown), the left- So that it is possible to switch the state of the flashing state.

The output from the driving unit (6) is transmitted to the pre-loading frame (26) through the shift by the hydrostatic stepless speed changer. This power is transmitted to the plurality of stand-up devices 21, the clipper-type cutting device 22, and the grain conveyor 23 and the like. As a result of this driving force, a plurality of minute grass pieces (24) equiped at the front end portion of the body are divided into upright grain bins with the running of the base, and each standing device (21) The cutting unit 22 cuts the bottom side of the upright grain bands standing up and the rear side treading machine 4 is shifted from the standing position to the side lying down position .

In addition, when it is desired to change the cutting speed largely according to the condition of the field or the conditions of the crest of the crest, as well as the stepless shift by the above-described hydrostatic stepless transmission, the dedicated gear- (Not shown) configured by a low-speed two-speed shifting operation.

[Configuration of Thresher and Grain Tank]

The main casing 4S constituting the threshing device 4 is provided with a feed chamber 4A in which the bottom end of the grain barrel to be conveyed by the feed chain 30 is supported, (See Fig. 4) which is rotationally driven around the axial center of the front and rear by the power from the engine.

The processed material separated from the grain bank in the feeding chamber 4A is selected by a receiving net 31 protruding along the lower portion of the feeding chamber 4A and the processed material dropped in the net 31 is fed 4A of the sorting section 4B disposed at the lower end of the sorting section 4B and the processed material which has not dropped from the nib 31 is taken out from the feeding port at the end of the feeding section 4A, The drop is supplied to the middle part.

The processed material falling and supplied to the sorting unit 4B is received by the long swing sorting case 32 forward and backward. The processed material is oscillated and conveyed backward by the swing sorting case 32, And sieve is sieved by a rough picking chive sheave, a grain sorting grain sorting, a picking rack for dropping, a straw rack, and the like (all not shown). In addition, the screen wind which flows backward and upward from the tuyeres (33) provided at the front end portion of the sorting section is supplied to the processed products falling down selectively, and the light straw stains and dust contained in the treated products are scattered backward .

The corn grain is selected and collected in the first recovery unit 34 and the second crop in the second recovery unit 36 so that the straw straw that does not fall in the straw rack is discharged to the delivery port 4C at the rear end of the sorting unit, As shown in FIG. The curled water of the No. 1 water recovered in the No. 1 recovery part 34 is laterally transported to the outside of the machine by the first lateral transporting screw SF1 and then lifted by the screw type grain machine 35 And the second material recovered to the No. 2 recovery unit 36 is transported laterally by the second lateral transporting screw SF7 and then transported to the screw type reduction unit 37 To the front portion of the swing sorting case 32 to receive the re-sorting process.

As shown in Fig. 5, the grain machine 35 is constituted by incorporating a first paper feeding screw SF2 in a feed cylinder 35T connected and fixed in a standing posture on the lateral outer side of the machine, The lower end of the feed screw SF2 and the end of the first lateral feed screw SF1 are interconnected and connected through a transmission mechanism (not shown). The curled grit sent to the first transverse feed screw SF1 is delivered to the first paper feed screw SF2 to be lifted, and the lifted curled paper is fed to the rotation of the feed port 35M formed at the upper end of the first paper feed screw SF2 Is discharged and stored in the grain tank 51 by the vane 35F (see Fig. 4).

The reducing device 37 is constituted by incorporating a second paper feeding screw SF3 in a feed cylinder 37T connected to and fixed in an upright posture and corresponding to an end of the feed cylinder 37T, And a discharge case 38 incorporating a rotary vane 38B for discharging the curled-leaf to the front portion of the sorting portion 4B. The discharge case 38 is located outside the right side wall of the main casing 4S of the threshing apparatus 4 and the discharge port of the discharge case 38 is open in all directions. The right side wall corresponding to the discharge port is provided with a reducing guide plate 39 which is larger toward the discharge case 38 and projected obliquely outwardly. The discharge port of the discharge case 38 is provided with a reduction guide plate 39 To the rear opening end portion of the rear end portion. Thus, the second item conveyed upward by the second paper feeding screw SF3 is forwardly discharged from the discharging case 38 by the rotating vane 38B at the upper end of the second paper feeding screw SF3, And is scattered and supplied to the front portion of the sorting section 4B along the reduction guide plate 39. [

A blower fan 40 made of a transverse fan is horizontally disposed at a position above the rear portion of the sorting portion 4B from the rear of the feeder 4A and a blown dust blown from the end portion of the middle chamber 4A, Or straw straw debris or selective wind, the dust and debris that have been blown up above the rear portion of the sorting section 5 are sucked into the discharge fan 40 and forcedly discharged to the rear of the apparatus. An exhausted rice straw transfer device 41 is disposed above the vacuum fan 40. An exhausted rice straw taken out from the supply chamber 4A is led from the feed chain 30 to the discharged straw transfer device 41, And is fed to the exhaust straw rack cutter device 54 (an example of the discharged rice straw processing section 8) connected to the upper part of the rear end of the threshing device 4 to be finely cut.

A lid 55 capable of closing the opening 54A of the discharged straw straw cutter device 54 is provided on the upper portion of the discharged straw straw cutter device 54 so as to be swingable by an electric motor. When the lid 55 is opened as shown by the solid line, the discharged rice straw, which is carried to the rear end portion of the discharged rice straw transfer device 41, is fed through the opening 54A to the discharged straw straw cutter device 54, It is cut and discharged downward. On the other hand, when the lid 55 is closed, the discharged rice straw falling down from the rear end of the discharged rice straw transfer device 41 is dropped downward and downward along the inclined upper surface of the lid 55.

As shown in Fig. 3, the grain tank 51 constituting the grained storage device 5 is provided around the longitudinal axis Y provided at the rear portion of the grain tank 51, (Represented by a solid line) and a maintenance position (indicated by a two-dot chain line) in which the front side is protruded to the right side outside of the base frame 1 and the rear side of the engine 60 or the right side wall of the threshing device 4 is opened So as to be swingable and displaceable. The grazing device 35 is held at a predetermined position on the side of the threshing device 4 regardless of the swinging displacement of the graining tank 51. The grazing tank 35 is positioned at the upper end of the grazing device 35 And the formed curled-straw feed port 35M is connected to and spaced from the grain tank 51. The grain tank 51 is configured to be capable of holding a position at a working position and a maintenance position by a lock mechanism (not shown).

The feed cylinder 35T of the grain machine 35 is vertically extended from the main casing 4S of the threshing device 4 to the grain tank 51 side. A groove-shaped recessed portion 51V extending upward and downward for accommodating most of the feeder tube 35T of the grain machine 35 at the working position is formed on the side surface.

[Configuration of exhaust structure]

4 and the like, the exhaust pipe XP is branched from the exhaust discharge pipe 67A of the engine muffler 67 (an example of the exhaust part) in the left and right direction of the base, and the threshing device 4 and the grain tank 51, A first tube portion 68 extending linearly up to a height exceeding the ceiling portion of the threshing device 4 and a second tube portion 68 extending from the rear end of the first tube portion 68 to the first tube portion 68 And a second tube portion 70 extending in a straight line in a slant upward direction with a gentle gradient.

The first tube portion 68 and the second tube portion 70 are arranged so as to be in an inverted V shape when viewed from the side, and as shown in Fig. 3, they are formed in a substantially straight shape As shown in FIG. More specifically, as viewed in plan, the second tube portion 70 is disposed slightly inclined from the connection point to the rear end portion of the first tube portion 68 extending in the front-rear direction to slightly backward and rightward of the gas.

The first tube portion 68 is relatively urgent so that the entire second tube portion 70 is located behind the feed tube 35T of the grazing device 35 and above the height of the ceiling portion of the threshing device 4 And passes through the position where the reducing guide plate 39 of the reducing device 37 is sufficiently bypassed upward.

5, a recessed portion 51C is formed on the side surface facing the threshing device 4 of the grain tank 51 so as to be spaced apart from the threshing device 4, Two continuous gap spaces S1 and S2 are formed between the grain tank 51 and the threshing device 4 by the concave portion 51C in the vertical position. The downward gap space S1 is occupied by the reduction guide plate 39 and allows the exhaust pipe XP to pass through the gap space S2 adjoining above the gap space S1.

The second tube portion 70 is disposed below the height of the ceiling portion 51A of the grain tank 51 over the entire length. The exhaust outlet 70C located at the rear end of the second tube portion 70 is disposed above the exhausted rice straw processing portion 8 (54), and is disposed so as not to protrude from the outer shape of the combine Is disposed on the front side of the rear end of the straw straw cutter device (54).

3, in the stored state of the curled discharge auger 52 in which the horizontal portion 52B is supported by the auger pedestal 52H, most of the second tube portion 70 Is overlapped with the horizontal portion 52B of the auger 52 for curled discharge.

The first tube portion 68 has a first inner tube 68A having a relatively small diameter and a first outer tube 68B covering the entire length of the first inner tube 68A from the outer periphery. Likewise, the second tube portion 70 also has a second inner tube 70A of a relatively small diameter and a second outer tube 70B that covers most of the length of the second inner tube 70A from the outer periphery. 9 and 10, the first outer tube 68B is disposed substantially evenly spaced over the entire circumference with respect to the first inner tube 68A, and the second outer tube 70B is also spaced from the second inner tube 70A, And are spaced substantially evenly around the entire circumference.

At the front end of the first inner pipe 68A, a first funnel-shaped portion 68R having a larger diameter toward the engine 60 is provided. A short continuous installation auxiliary pipe 68F is installed at the rear end of the first inner pipe 68A and extends obliquely upwardly with a gentle gradient relative to the first inner pipe 68A.

The rear end of the exhaust discharge pipe 67A and the front end of the first funnel-shaped portion 68R of the first inner pipe 68A are arranged so as to partially overlap each other along the axial center of the exhaust pipe XP. In this overlapping portion, the annular gap formed between the rear end of the exhaust discharge pipe 67A and the front end of the first funnel-shaped portion 68R is formed by the ejector effect based on the negative pressure generated in the exhaust pipe XP And constitutes a first introduction portion E1 to be introduced into the first inside pipe 68A.

The second funnel-shaped portion 70R is also provided at the front end portion of the second inner pipe 70A so as to become larger in diameter toward the engine 60. [ The front end portion of the second funnel-shaped portion 70R and the continuous installation auxiliary pipe 68F of the first pipe portion 68 are arranged to overlap each other along the axis of the exhaust pipe XP. The front end of the first funnel portion 68, that is, the front end of the continuous funnel auxiliary pipe 68F and the second funnel portion 70R, which is the front end portion of the second pipe portion 70, The annular gap formed between the portions constitutes a second introduction portion E2 for introducing the outside air into the inside of the second inside pipe 70A based on the negative pressure generated in the exhaust pipe XP.

The front end of the first outer tube 68B is welded to a portion of the outer circumferential surface of the first funnel-shaped portion 68R extending from the first inner tube 68A. On the other hand, the rear end of the first outer tube 68B is welded to the front surface of the bracket 68J welded in a radially outward direction from the outer periphery of the vicinity of the rear end of the first inner tube 68A.

The front end of the second outer tube 70B is welded to a part of the outer circumferential surface of the second funnel-shaped portion 70R extending from the second inner tube 70A. The rear end portion of the second outer tube 70B is welded to the outer surface of the front surface of the bracket 70J welded radially outward from the outer periphery of the vicinity of the rear end of the second inner tube 70A.

The exhaust pipe 67A and the first pipe portion 68 of the engine muffler 67 are continuously provided in a substantially straight line and the axial center of the second pipe portion 70 is also 45 degrees The exhaust from the engine muffler 67 smoothly flows through the exhaust pipe XP and the exhaust pipe XP does not generate a local temperature rise.

By providing the first inlet E1 and the second inlet E2 as described above, the outside air is sucked from the annular gap provided in the first inlet E1 and the second inlet E2 to the exhaust pipe XP , The exhaust temperature can be lowered.

Particularly, since the second introduction portion E2 is not located in a closed space sandwiched by the threshing device 4 and the grain tank 51 but in a space above the ceiling portion of the threshing device 4, Is introduced into the second inner tube (70A) of the tube portion (70).

Protective covers 72 and 73 are provided on the first tube portion 68 and the second tube portion 70, respectively. The protective covers 72 and 73 are formed so that a plurality of round holes are formed in a punching metal shape so as to prevent the first tube portion 68 and the second tube portion 70 from being cooled by surrounding air, And brackets 72B and 73B welded to the outer circumferential surface of the second outer tube 70B by bolt nuts or the like.

Each of the protective covers 72 and 73 has an arc shape in cross section and has a generally cylindrical shape and has a substantially half area of the outer peripheral surfaces of the first tube portion 68 and the second tube portion 70, Respectively. Therefore, when the operator swings the grain tank 51 to the maintenance position, the exhaust pipe XP is opened together with the right side wall of the threshing device 4, but the exhaust pipe XP from the operator, (72, 73). It is to be noted that the exhaust pipe XP passes through the clearance between the grazing device 35 extending in the vertical direction and the right wall of the threshing device 4 and at the position corresponding to the rear of the grazing device 35, ) Is omitted.

The protective covers 72 and 73 are distances between the first inner pipe 68A and the first outer pipe 68B or a distance exceeding the interval between the second inner pipe 70A and the second outer pipe 70B, (68B) and the second outer tube (70B). The protective covers 72 and 73 are not limited to a punched metal shape, and may be, for example, a mesh shape.

The exhaust pipe XP is supported so as to be substantially equidistant from both side surfaces of the grain tank 51 and the threshing device 4. [ The exhaust pipe XP is not in the form of the grain tank 51 but in the vicinity of the longitudinal axis Y of the threshing device 4 so that the grain tank 51 can be freely swung between the working position and the maintenance position around the longitudinal axis Y. [ And is supported on the side surface. More specifically, the exhaust pipe XP is supported through four stays 80A, 78A, 80B and 80C fixed to the side surface of the threshing device 4. [

More specifically, with respect to the front portion of the first pipe portion 68 of the exhaust pipe XP, a small first plate bracket 82A welded to the front end of the first outer pipe 68B is attached to the front end of the threshing device 4, Is fixed to the vertical surface of the L-shaped first stay 80A with a screw (V). The outer diameter of the male screw portion of the screw V is set to be smaller than the outer diameter of the male screw portion of the screw V in the first bracket 82A so that the position near the front end of the first tube portion 68 can be finely adjusted in accordance with the positional change of the rear end portion of the exhaust discharge pipe 67A Two through holes H of an inner diameter that are sufficiently larger than the through holes H are formed vertically in parallel.

A small second plate bracket 82B welded to the first outer tube 68B is screwed to the L-shaped auxiliary bracket 82C having a cross section in the rear portion of the first tube portion 68, The bracket 82C is screwed to the vertical surface near the middle of the second stay 78A on the front side of the two stays 78A and 78B provided on the side surface of the threshing device 4, It is fixed. Two mounting through-holes formed in the second stay 78A are also formed vertically.

A slightly larger third bracket 82D having an L-shaped cross section welded to the front end portion of the second outer tube 70B is screwed to the side of the threshing device 4 with respect to the front portion of the second tube portion 70 And is screwed to the horizontal surface of the third stay 80B having an L-shaped cross section. The two mounting through holes formed in the third stay 80B are formed in the front and rear along the advancing direction of the combine.

A slightly larger fourth bracket 82E having an L-shaped section welded to the rear of the second tubular portion 70 near the middle in the longitudinal direction of the second outer tube 70B is provided on the side of the threshing device 4 And is screwed to the horizontal plane of the fourth stay 80C having a U-shaped cross section opened downward. The two mounting through holes formed in the fourth stay 80C are formed side by side in the transverse direction intersecting with the advancing direction of the combine.

[Other Embodiments]

In the above-described embodiment, the linear first tube portion 68 and the second tube portion 70 are provided so as to extend obliquely upward in different gradients when viewed from the side, so that between the tube portions 68 and 70 And is extended so as to include one bent joint portion. However, the present invention is not limited to such a configuration, and a joint may be further provided in the middle of the first tube portion 68 to constitute three linear tube portions as a whole, and three linear tube portions, Or a configuration in which all of the different gradients or both of the gradients are extended obliquely upward with the same gradient. In this case, it is possible, although not necessary, to install the lead in a new joint.

The second tube portion 70 is not inclined when viewed from the side of the first tube portion 68 that is extended in the upward direction of the inclination, It may be constructed so as to extend in the inclined downward direction when viewed.

The exhaust pipe XP extends from the exhaust portion of the engine 60 to the exhaust outlet 70C of the exhaust pipe XP disposed above the exhaust straw RZ processing portion 8, It is also possible to extend in a straight line with a constant gradient as viewed from the side of the trolley unit 4 and the collecting unit 5 so as to be passed obliquely upward.

It is preferable that the exhaust pipe XP be inclined upward from the exhaust portion of the engine 60 to the exhaust outlet 70C of the exhaust pipe XP disposed above the exhaust straw RZ processing portion 8 It is also possible to form the convex portion on the upper side or the convexly curved portion on the lower side so as to pass between the threshing device 4 and the collecting portion 5 in an inclined upward direction. In this case, the exhaust pipe XP may extend in a curved shape over substantially the entire length. However, the first pipe portion 68 and the third pipe portion, which extend in a straight line, may be connected by a curved second pipe portion Maybe.

The first tube portion 68 and the second tube portion 70 in a linear shape are arranged in a straight line in the forward or backward direction or in the oblique forward and backward directions when viewed from the plane or the second tube portion 70 But may be arranged in a state of being inclined from the connection point to the rear end portion of the first tube portion 68 in a plan view to the left rear side of the base body.

<6> In a case where the exhaust pipe XP is installed in any form as shown in the above, it is possible to divide the exhaust pipe XP into several pipe portions along the longitudinal direction, but a single pipe may be used without being divided. Further, in the case of dividing, the introduction portion may be provided on all or a part of the intermediate joint portion, but it is also possible to form the introduction portion in the joint portion.

As shown in FIG. 11, the portion of the second tube portion 70 described in the above embodiment may be omitted, and the exhaust tube XP may be formed of only the first tube portion 68 . In this case, the exhaust pipe XP is passed obliquely upward between the threshing device 4 and the collecting part 5 from the engine muffler 67 (exhaust part), and the exhaust outlet 68C passes through the ceiling part of the threshing device 4 And is open from above. Here again, the exhaust pipe (XP) 68 is supported by the housing 4S constituting the threshing device 4. [ More specifically, the exhaust pipe (XP) 68 includes first and second stays 80A and 78A fixed to the housing 4S and first and second brackets 82A and 82B provided on the first tube portion 68 , And is supported by the housing 4S by the auxiliary bracket 82C. The portion of the exhaust pipe (XP) 68 which extends upward from the ceiling portion of the threshing device 4 is located between the transfer tube 35T of the gravity device 35 and the housing 4S, It covers the part excluding the part.

It is also possible to carry out in the form of a combine which does not have the discharged rice straw processing section 8 such as the discharge straw rack cutter device 54.

In the following, embodiments of the present invention will be described with reference to the drawings.

12 is a side view showing the entire combine according to the embodiment of the present invention. 13 is a plan view showing the entire combine according to the embodiment of the present invention. As shown in these drawings, the combine according to the embodiment of the present invention has a pair of left and right crawler type traveling devices 101 and 101, and also includes a driving part 102 and a driving part 102 positioned on the lateral one end side of the gas front part, A tread portion 120 connected to the front end portion of the base frame 103 of the traveling base and a tread portion 120 arranged side by side in the transverse direction of the running frame on the rear side of the base frame 103, And comprises a device 104 and a grapefruit tank 105.

This combine harvests rice and barley.

That is, the engine 111 is disposed on the lower side of the driving seat 102a in the driving unit 110, and the traveling gas is a traveling vehicle in which the output of the engine 111 is running on the front end of the gas frame 103 Is transmitted to the crawler drive wheel body 101a of the pair of traveling devices 101, 101 via the left and right travel devices 106 (see Fig. 14), thereby driving the pair of traveling devices 101, 101 .

The preload unit 120 has a preload frame 121 supported on a front portion of the base frame 103 so as to be able to move up and down about an elevation axis P so that the preload frame 121 can be swung 130 so that the six working apertures 122 arranged in the transverse direction of the running vehicle are lowered at the front end of the preloading portion 120 in the vicinity of the ground, And ascends and descends to a rising non-working position that rises high from the ground. The preloading unit 120 is operated to descend to the lowering work position and the traveling gas is run in this state so that the upright grain bands are divided by the jet holes 122 into the object to be cut and the object to be cut off, And simultaneously feeds the cut grain bundle to the threshing device 104.

The threshing device 104 feeds the bottom side of the cut grain bundle from the preloading section 120 by the threshing feed chain 104a and feeds the tail end side of the cut grain band to the feed room (not shown) To perform a threshing process. The grape tanks 105 are taken out of the threshing device 104 to store the threshing lips supplied by the grazing device 107. The threshing lips stored in the grapefruit tank 105 are carried out by the grainy drainage auger 108 communicating with the return port located at the rear portion of the grapefruit tank 105. [

The driving unit 110 will be described.

As shown in Fig. 14, the engine 111 is mounted with the output shaft 111a in a transverse posture along the transverse direction of the traveling vehicle. And a cooling radiator 112 is provided at a position located transversely outside the running vehicle with respect to the engine 111. [ The air outside the engine bonnet 114 is sucked into the engine bonnet 114 by the blowing action of the cooling fan 113 that is rotationally driven by the engine 111 to generate cooling wind to cool the radiator 112 and discharges the cooling air that has exited the cooling radiator 112 toward the lateral side of the traveling gas opposite to the side where the cooling radiator 112 is located through the circumference of the engine 111. [ Reference numeral 115 in Fig. 14 denotes a muffler for an engine.

The preloading unit 120 will be described.

As shown in Figs. 12, 13 and 15, the preload unit 120 is provided with the preliminary frame 121 and six nozzle holes 122, and also travels on the rear side of the nozzle hole 122 A clipping type cutting device 124 in the transverse direction of the traveling vehicle positioned at the rear of the standing device 123 and a cutting device 124 disposed in a position above the cutting device 124, And a transport device 126 extending from the rear side of the raking device 125 to near the starting end of the hoisting feed chain 104a.

The preload frame 121 is mounted on an upper portion of a top portion 127 of the running vehicle in the vertical direction of the running vehicle provided on the front portion of the base frame 103 to be swingable around the elevation axis P, And six branching levers 121b extending in the forward direction of the traveling gas from the front end of the main frame 121a and spaced apart from each other by a predetermined distance in the transverse direction of the traveling gas.

The six minute initials 122 are distributed and supported at the tip ends of the six minute branching levers 121b. Each of the milling cutters 122 introduces an upright grain band to be cut into an upstanding path 128 formed by a pair of milling levers 121b and 121b adjacent to the rear of the milling cutter 122. [ Each standing device 123 stands upright standing grains introduced into the corresponding standing route 128. The raking device 125 is constituted by arranging a plurality of endless rotating type raking belts 125a extending in all directions from above the cutting device 124 in the transverse direction of the running vehicle, The lower side of the upright grain bands standing up by the upper end of the take-up reel is hooked and conveyed in the backward direction by the corresponding raking belt 125a, and is raked and supplied to the cutting device 124. [ The cutting device 124 cuts the base of the upright grain band supplied by the raking belt 125a while standing by each standing device 123.

The conveying device 126 is provided with a bottom side fitting support conveying portion 126a extending from above the cutting device 124 to the vicinity of the conveying start end portion of the threshing feed chain 104a and a tilting conveying portion 126b extending from above the end portion of the raking belt 125a End side engaging and conveying portion 126b leading to the vicinity of the conveying end portion of the feed chain 104a and is made by the cutting device 124 and is fed by the raking belt 125a, By the engaging support conveyance of the bottom side by the bottom side fitting support conveying portion 126a and the hook supporting conveyance by the bottom side engaging and conveying portion 126b of the bottom end side, And is posteriorly shifted to the side posture by the claw end side engaging / conveying portion 126b at the conveying end portion by the claw end side of the claw conveying portion 126b to feed the culled grains in a sideways posture to a threshing feed And it supplies it to the leading-end part of the transport (104a). When the cut grain barrel is fed to the threshing feed chain 104a in a side-lying posture, the tail end side of the cut grain barrel is received and supported by a guide plate 129 made of a rubber plate (see Figs. 12 and 16) 104 to the inlet bottom plate 104b.

16, a deflection chute 131 made of a rubber plate is disposed above the base frame 103 from a support portion 104c provided on the back side of the inlet bottom plate 104b of the threshing device 104, And is provided so as to extend in all directions. The backward chute 131 is positioned below the guide plate 129 and in the forward downward position on the lower side of the conveying path R for conveying the cut grain bundle toward the threshing feed chain 104a by the conveying device 126, The dust such as the cut rice straw dropped from the conveying path R is dropped toward the front of the base frame 103 to prevent the dust from falling down to the front end of the base frame 103 and the hydraulic cylinder 130 and the vicinity thereof . A cutout 131a is formed in the backward chute 131 so as to avoid the support body 133 in the support portion 127 in the right and left intermediate portions in the front portion thereof as indicated by the two- .

A structure for lifting and lowering the preload unit 120 will be described.

15 and 16, the support portion 127 for supporting the pre-installation frame 121 is mounted on the front end portion of the base frame 103 in an operation oil tank (not shown) disposed above the hydraulic cylinder 130 And a supporting body 133 of a casting agent fixed by connecting bolts on the upper portion of the working oil tank 132. [ The supporting body 133 is provided with a supporting body 133a and an opening and closing supporting piece 133b which are vertically openable and closable in the supporting body 133a. The connecting cylinder portion 121c extending in the transverse direction of the body is pivotally supported by the support body 133a and the opening and closing support piece 133b so as to be rotatable about the elevation shaft center P. [ An inclined surface 132A inclined forwardly downward to support the support body 133 and an inclined surface 132B inclined downward and rearward supporting the support member 141 are formed on the upper portion of the working oil tank 132, 132 are formed in a pointed mountain shape in an upward direction in which dust is hard to accumulate.

The hydraulic cylinder 130 includes a cylinder connecting portion 121d provided in the main frame 121a of the preload frame 121 and a cylinder connecting portion 103b provided with a bracket on the front portion of the base frame 103, Respectively. The hydraulic cylinder 130 is connected to an operation valve 142 which is supported by a support member 141 below the discharge chute 131.

The operating valve 142 is provided with an operating lever 145 (see Figs. 12 and 13) disposed in the front of the operating seat 102a in the operating portion 102 and swinging in the forward and backward directions of the traveling gas, State and the falling state. When the operation valve 142 is switched to the raised state, the operating fluid supplied from the working oil tank 132 by the hydraulic pump (not shown) assembled in the case of the mission 106 is supplied to the hydraulic cylinder 130 The hydraulic cylinder 130 is operated to the extension side, and the hydraulic cylinder 130 operates the preload part 120 to the upward side. When the operation valve 142 is switched to the lowered state, the operating oil is discharged from the hydraulic cylinder 130 to operate the hydraulic cylinder 130 to the short axis side, and the hydraulic cylinder 130 is lowered .

14, the operating oil tank 132 is disposed on the lateral side of the driving unit 110 so as to hit the engine cooling wind discharged from the driving unit 110, And is supported by the base frame 103 in such a manner that the base frame 103 is disposed below the backward chute 131 over the entire length in the lateral direction of the base. The upper end side of the working oil tank 132 protrudes upward from the base frame 103. The working oil tank 132 is formed into a long shape in the transverse direction of the traveling gas. The transversely lateral side end portion 132a of the working oil tank 132 slightly enters the inside of the traveling gas with respect to the transverse lateral portion rim 103a of the base frame 103. [

16, the operating valve 142 for controlling the hydraulic cylinder 130 is located at a position spaced upward from the base frame 103, so that scattered dust from the traveling device 101 is difficult to reach And is disposed at an arrangement height higher than the upper end 132b of the working oil tank 132. [ In this embodiment, the lower portion of the operation valve 142 is disposed at the same height as the upper end of the notch 131a of the backward chute 131 or at a higher height than the upper end.

That is, the operation valve 142 extends obliquely upward and backward from the upper portion (the inclined surface 132B) of the working oil tank 132 so as to be shorter than the case extending from the gas frame 103, And the operation valve device 140 is supported at the extending end of the valve body 140. [ The operation valve 142 includes a valve casing 144 fixed to the support member 141 by a connecting bolt and a sliding spool assembled to the valve casing 144 so as to be slidable in the forward and backward directions of the traveling gas Consists of. The support member 141 can be disposed to follow the backward chute 131 so that the operation valve device 140 can be moved in the upward direction and the backward direction from the operating oil tank 132. [ The arrangement height of the operation valve device 140 can be set high while avoiding collision with the backward chute 131.

The operating valve 142 is disposed in the vicinity of the center 132c of the working oil tank 132 in the transverse direction of the working oil tank 132, And is positioned at a position offset from the center of the transverse direction 132c in the lateral direction of the traveling gas.

The operation valve device 140 includes an operation valve 142 for controlling the hydraulic cylinder 130 and two operation device operation valves 143 and 143. [ The two operation device control valves 143 and 143 are provided with a valve casing 144 which is the same as the valve casing 144 constituting the operation valve 142 and a valve casing 144 which is provided in the valve casing 144, And a slidable spool which is assembled as much as possible.

The two operation device control valves 143 and 143 are switched and controlled by rolling control means (not shown) operating based on the detection result by a tilt sensor (not shown) that detects the tilt of the running vehicle , One of the operation valves 143 is operated by operating a rolling cylinder (not shown) provided in the left traveling device 101 to move the track frame 101b (see Fig. 12) The other of the operation valves 143 is moved to the left and right of the frame 103 so as to adjust the posture of the traveling device 101 on the left side relative to the base frame 103, The track frame 101b of the right traveling device 101 is moved up and down with respect to the base frame 103 by operating a cylinder (not shown) so that the right side of the traveling device 101 with respect to the base frame 103 The posture adjustment is performed.

That is, the two operation valves 143 and 143 are switched and controlled by the rolling control means to change the ground height on the right and left sides of the base frame 103 to adjust the posture of the base frame 103 to approximately Keep it horizontal.

The vicinity of the driving part of the traveling vehicle will be described.

17 is a perspective view showing the vicinity of the entrance of the operation section 102. Fig. As shown in this drawing, elevation steps 152 and 153 of two upper and lower stages are provided below the bottom 151 of the operation part located at the entrance 150 of the operation part 102. [

The elevating step 152 on the upper side is fixed to the lower side of the through hole 155 formed to insert a toe on the transverse side wall plate 154 of the traveling base.

The lower stage elevating step 153 is configured such that a connecting member 158 provided on the front and rear sides of the elevating step 153 is pivotally supported by a supporting member 160 provided on the outer surface side of the base frame 103 And the pin hole 158a of the connecting member 158 is formed into an elongated hole so as to be capable of swinging in the lowered use state and the upwardly retracted state.

18 (a) is a front elevation of a longitudinal section showing the lowering use state of the lowering step 153. Fig. As shown in this figure, the lower step-up step 153 is pulled out laterally outward of the traveling vehicle so that the pivot support pin 161 is positioned at one end of the pin hole 158a and the pivot support pin 161 Downward about the axis of the shaft. The end face 153a on the proximal end side of the lifting step 153 is brought into contact with and supported by the stopper portion 162 provided on the support member 160 so that the lifting step 153 is in the lowered use state do. That is, the elevating step 153 is a horizontal mounting posture horizontally extending from the supporting member 160 horizontally outward in the transverse direction of the traveling vehicle, and in the horizontal mounting posture against the load applied to the step surface 153b, 162, respectively.

18 (b) is a longitudinal elevation front view showing the lifted state of the lifting step 153 on the lower side. As shown in this figure, when the lower step 153 is raised from the lowered use state to the axial center of the pivot support pin 161, the elevation step 153 is moved in the long hole shape of the pin hole 158a So that the pivot support pin 161 is positioned at the other end of the pin hole 158a. The distal end portion 158b of the connecting member 158 enters between the pivot support pin 161 and the outer surface of the base frame 103 and comes into contact with and supports the outer surface of the base frame 103, (153) is in the raised and retracted state. That is, the elevating step 153 is in an upward mounting posture extending from the supporting member 160 in the upward direction of the traveling body, and is held by the gas frame 103 in the upward mounting posture against the weight of the elevating step 153 .

The inner step material 157 supported by the front and rear side edges of the outer frame step material 156 of the elevating step 153 is attached to the lower step side elevating step 153 as shown in Figs. And the internal step material 157 is constituted by an angle member. The mounting posture of the angle member constituting the internal step material 157 is set such that one of the base plate portions 157a extends along the thickness direction of the elevation step 153 and the other base plate portion 157b Is set to the mounting posture located on the back side of the elevating step 153 in a state of extending from the base portion 157a of the elevating step 153 toward the proximal end side of the elevating step 153, (157c).

That is, when the lifting step 153 is pivoted by the toes of the lifting step 153, the foot is slipped on the footing edge 157c, thereby preventing the foot from slipping and shifting the lifting step 153 Smooth and accurate.

A driving unit provided at the front of the running vehicle, an operating unit provided at the rear of the preload unit, a threshing unit and a curled-up recovering unit juxtaposed in the left and right direction in the rear of the driving unit, a discharged straw handling unit provided at the rear of the threshing unit, And an exhaust pipe for exhausting the exhaust gas from an engine provided in a lower portion of the exhaust pipe. The exhaust gas purifier of the present invention can be used for both the main exhaust type and the common exhaust type.

The present invention is also applicable to a combine having a threshing device 104 for inserting only the distal end of a cut grain bobbin into a feed chamber, and also to a combine having a threshing device for feeding the whole feed from the base to the end of the bobbin have.

E2: 2nd entry (entrance)
S1: Clearance space
S2: Clearance space
XP: Exhaust pipe
1: a gas frame (traveling gas)
3: Cutting conveyor (Ex.)
4: Thresher
4B:
4S: Main casing (housing)
5: Grain storage device (collection part)
8: Exhaust Rice Straw Processing Section
14: Boarding operation section (operation section)
32: Shake sorting case
35: grain machine
37: Reducing device (reduction processing part)
37T: Feeder (send the end)
39: Reduction guide plate (transverse conveyance unit)
51: Grain tank (recovery part)
51A: ceiling
51C:
54: Exhausted rice straw cutting device (discharged rice straw processing part)
60: engine
67: Engine muffler (exhaust part)
67A: Exhaust discharge pipe
68: first pipe section (exhaust pipe)
70: Second tube (exhaust pipe)
70C: Exhaust outlet
78A: Second stay (stay)
80C: Fourth stay (stay)
82A: first bracket (bracket)
82B: second bracket (bracket)
82D: Third bracket (bracket)
82E: Fourth bracket (bracket)
103: airframe frame
104: Thresher
120: Example mounting
121: Example mounting frame
130: Hydraulic cylinder
131: Bounce Suit
132: Working oil tank
132b: upper end of the working oil tank
132c: center of working oil tank
141: Support member
142: Operation valve
R: Return path

Claims (27)

A recovery unit installed in a rear portion of the running unit, a trolley unit arranged in the left and right direction in the rear of the operation unit, and a recovery unit for recovering the curl, And an exhaust pipe for discharging the exhaust gas from the engine. The exhaust gas purifier of claim 1,
A rear end portion of the recovery portion is located forward of a rear end portion of the threshing device,
The exhaust pipe is passed obliquely upward from the exhaust part of the engine between the threshing device and the recovery part,
A portion of the exhaust pipe located rearwardly of the rear end of the recovery portion is located above the threshing device,
And an exhaust outlet of the exhaust pipe is located above the exhausted rice straw processing unit. The method according to claim 1,
Wherein the exhaust pipe has a bent portion,
Wherein the bending portion is provided with an introduction portion for introducing outside air into the inside of the exhaust pipe. 3. The exhaust structure of a combine according to claim 2, wherein the introduction portion is located above the threshing device. The exhaust system according to any one of claims 1 to 3, wherein the exhaust pipe has a first pipe portion on the exhaust side of the engine and a second pipe portion extending rearward from the vicinity of the end portion of the first pipe portion , The exhaust structure of the combine. 5. The exhaust structure of a combine according to claim 4, wherein the first pipe portion extends to the upper side of the threshing device. 5. The method of claim 4,
Wherein the first tube portion extends rectilinearly obliquely upward,
Wherein the second tube portion is linearly extended upward obliquely at a gradient gentler than the first tube portion. 5. The exhaust structure of a combine according to claim 4, wherein an introduction portion for introducing outside air into the exhaust pipe is provided in the continuous installation portion of the first pipe portion and the second pipe portion. 5. The apparatus according to claim 4, characterized in that a reducing treatment section for reducing the curling of the water No. 2 to the sorting section of the threshing device is formed on the side of the collecting section side of the threshing device so as to protrude toward the collecting section side,
Wherein the first pipe portion passes through a position bypassing the upper portion of the reduction processing portion. 5. The threshing device according to claim 4, wherein the gravity device for supplying the curled grains thrown by the threshing device to the upper portion of the collecting portion is installed upright from a lower side of the collecting portion side of the threshing device,
Wherein the first tube portion is disposed so as to intersect with the grain apparatus as viewed from the side. The exhaust structure of a combine according to claim 4, wherein the second tube portion is disposed below a height of a ceiling portion of the collection portion. The apparatus according to any one of claims 1 to 3, wherein the grain machine for feeding the curled grains thrown by the threshing device to the upper part of the collecting part is installed upright from the lower side of the collecting part side of the threshing device,
Wherein the exhaust pipe is supported on a stay connecting the gravity device to the housing of the threshing device. The water purifier according to any one of claims 1 to 3, wherein a reducing treatment portion for reducing the curling of the water No. 2 to the sorting portion of the threshing device is formed on the side of the recovery portion side of the threshing device so as to protrude toward the recovery portion side ,
Wherein a clearance space for avoiding interference between the threshing device and the reduction processing section and a clearance space for permitting the passage of the exhaust pipe are formed successively on a side surface of the housing of the recovery section. A recovery unit installed in a rear portion of the running unit, a trolley unit arranged in the left and right direction in the rear of the operation unit, and a recovery unit for recovering the curl, And an exhaust pipe for exhausting exhaust gas from the engine,
A gravity device for feeding the curled grains thrown by the threshing device to the upper portion of the collecting portion is installed upright from a lower side of the collecting portion side of the threshing device,
A reducing processing unit for reducing the curl of the water of the second water to the sorting unit of the threshing apparatus is provided on the side of the collecting unit side of the threshing apparatus,
Wherein the reduction processing unit is arranged to pass between the threshing device and the grain machine,
The exhaust pipe is passed obliquely upward between the threshing device and the recovery part from the exhaust part of the engine in a state where the exhaust pipe passes through a space surrounded by the threshing device, the gravity device and the reduction processing part, The exhaust structure of the combine is supported by a housing constituting the device. 14. The apparatus according to claim 13, wherein a bulge portion which bulges to the threshing device side is provided on an upper portion of the collecting portion,
And the upper portion of the exhaust pipe is covered by the bulged portion. 15. The stapler according to claim 13 or 14, wherein the exhaust pipe is supported by a stay which connects the gravity device to the housing of the threshing device in a region surrounded by the threshing device, the grazing device, and the reduction processing section , The exhaust structure of the combine. 15. The air conditioner according to claim 13 or 14, wherein the exhaust pipe has a bent portion,
Wherein the bending portion is provided with an introduction portion for introducing outside air into the inside of the exhaust pipe. 17. The exhaust structure of a combine according to claim 16, wherein the introduction portion is located above the threshing device. 17. The apparatus according to claim 16, wherein the collecting portion is provided with a recessed portion recessed into a side spaced from the threshing device in plan view,
Wherein the introduction portion is located at the concave portion in plan view. 17. The exhaust structure of a combine according to claim 16, wherein the vicinity of the inlet portion of the exhaust pipe is supported by a stay connected to the housing of the threshing device. The exhaust structure of a combine according to claim 13 or 14, wherein the exhaust pipe has a first pipe portion on the exhaust side of the engine and a second pipe portion extending rearward from the vicinity of the end of the first pipe portion. 21. The exhaust structure of a combine according to claim 20, wherein the first pipe portion extends up to the upper portion of the threshing device. 21. The exhaust structure of a combine according to claim 20, wherein an introduction portion for introducing outside air into the exhaust pipe is provided in the continuous installation portion of the first pipe portion and the second pipe portion. 21. The apparatus of claim 20, wherein the front portion of the first tube portion is supported by a first stay connected to a housing of the threshing device,
A rear portion of the first tube portion is supported by a second stay connecting the gravity device to the housing of the threshing device,
A front portion of the second tube portion is supported by a third stay connected to a housing of the threshing device,
And an intermediate portion of the second tube portion is supported by a fourth stay connected to the housing of the threshing device. 24. The exhaust system according to claim 23, further comprising a plurality of brackets fixed to the exhaust pipe,
The brackets disposed at the rear of the vehicle at most represent a plate extending in the vehicle width direction,
And is connected to the fourth stay by a plurality of bolts spaced apart in the width direction. 15. The exhaust structure of a combine according to claim 13 or 14, wherein the exhaust pipe is extended so as to bypass the reduction processing section upward. The exhaust gas recirculation device according to claim 13 or 14, further comprising: a side surface of the recovery unit, wherein a gap space for avoiding interference between the threshing apparatus and the reduction processing unit and a gap space for allowing the passage of the exhaust pipe are continuously formed Exhaust structure. 15. The conveyor apparatus according to claim 13 or 14, wherein the reduction processing section includes a follower conveying section provided upright from the threshing apparatus, and a transverse conveying section extending forward from the longitudinal end of the conveying section in the forward and backward directions,
Wherein the transverse conveyance portion is passed between the grazing machine and the threshing device.

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