WO2006011209A1

WO2006011209A1 - Combine

Info

Publication number: WO2006011209A1
Application number: PCT/JP2004/010818
Authority: WO
Inventors: Haremitsu Inagaki; Tomoyoshi Hirose; Jyunya Sakata; Yasuhiro Naohara; Masaaki Oda
Original assignee: Yanmar Co., Ltd.; Seirei Industry Co., Ltd.
Priority date: 2004-07-29
Filing date: 2004-07-29
Publication date: 2006-02-02
Also published as: CN1993038A; KR101137789B1; JPWO2006011209A1; CN100488352C; KR20070035579A; JP4556014B2

Abstract

A combine capable of securing excellent sorting efficiency by a sorter even when the amount of grains is large, comprising a threshing part threshing reaped cereal stalks and a sorting part sorting the grains threshed by the threshing part. A grain flow-down guide body is disposed between a threshing cylinder installed in the threshing part and the sorter installed in the sorting part just below the threshing cylinder. The grain flow-down guide body comprises a grain flow-down guide face guiding the grains threshed by the threshing cylinder and leaking down to flow down to the center part of the sorter. Thus, even if the amount of the grainsis large, the excellent sorting efficiency by the sorter can be secured.

Description

Specification

Connoin technology

[0001] The present invention relates to a combine.

Background art

[0002] Conventionally, as one form of combine, there has been a threshing unit that includes a threshing unit that threshs the cereal mash that has been harvested and a sorting unit that screens grains threshed by the threshing unit. The sorting body provided in the sorting section is arranged at a position directly below the handling cylinder provided in the container, a feed pan is provided at the front of the sorting body, and a chaff sheave is provided at the rear position of the feed pan (for example, (See JP 2000-139183 A).

[0003] And, on the feed pan, there are provided a plurality of guide bodies extending from the right end portion toward the inner rear side, and the grains that have been leaked to the right side of the feed pan by each guide body, Guided to the center of the feed pan, the grain selection with the feed pan is performed well.

Disclosure of the invention

[0004] However, when threshing a crop with a good threshing rate by the threshing section, even if it tries to guide the grain once leaked to the feed pan as described above, it will be biased and leaked. Due to the large amount of grain that has been produced, there is a problem that the guide near the center by the guide body becomes insufficient, and the specific gravity selection of the grain by the feed pan cannot be ensured satisfactorily.

[0005] In addition, a force that stretches the receiving net directly below the barrel and causes the grains to leak onto the feed pan through the receiving net. The mesh size of the receiving net is the same. for it has summer hardly beat sticks grains leakage, there problem force ^s that selection of the force Cal is tumbled grains can not be performed efficiently.

[0006] Therefore, in the present invention, in a combine equipped with a threshing unit for threshing the harvested cereal and a selection unit for selecting the grains threshed by the threshing unit, the combine is provided in the threshing unit. A grain flow guide body is disposed between the handling cylinder and the sorting body provided in the sorting section directly below the handling cylinder, and the grain flow guide body is threshed by the handling cylinder and leaked. Select the grain to come The present invention provides a combine characterized by comprising a grain flow guide surface for guiding the flow toward a separate central portion.

[0007] The present invention is also characterized by the following configurations.

[0008] (1) The grain flow guide body is formed in a plate shape extending in the front-rear direction, the grain flow plan inner surface is formed on the upper surface, and the grain flow guide surface is moved to the central portion side of the sorting body. It has become a downward slope.

[0009] (2) In a combine comprising a threshing unit for threshing the harvested cereal and a selection unit for selecting the grains threshed by the threshing unit, a position directly below the handling cylinder provided in the threshing unit The receiving network is stretched at the same time, and the receiving network forms a mesh boundary line at a position that is approximately two-thirds of the front-rear width, and the rear receiving network forming body positioned behind the mesh boundary line. The mesh size is formed to be larger than the mesh size of the front receiving mesh forming body positioned in front of the mesh boundary line portion, and the mesh boundary line portion is the start end portion of the chief sieve provided on the sorting body. The grain that has been placed in front of it and leaked through the front receiving net forming body is received by a feed pan provided on the selecting body, and the specific gravity is selected by the feed pan and the rear receiving net is formed. The pre-flow that flows through the body from the bottom to the top of the chief sheave. It has to be wind sorted by sorting wind from.

Brief Description of Drawings

FIG. 1 is a side view of a combine according to the present invention.

FIG. 2 is an explanatory side view showing the functional part configuration on the fuselage frame of the combine.

[FIG. ₃ ] Side view of the threshing section and sorting section of the combine.

[FIG. 4] Side view of the threshing section.

[Figure 5] Front view of the threshing section.

[Fig. 6] An exploded plan view of the receiving network.

FIG. 7 is a partially cutaway front explanatory view of a threshing portion.

[FIG. 8] A partially cutaway plan view of a sorting body.

FIG. 9 is an explanatory view showing a plan view (a) and a side view (b) of the shield.

FIG. 10 is an explanatory plan view of a motor unit and a sorting unit.

FIG. 11 is an explanatory side view of the exhaust flow path forming body. FIG. 12 is an explanatory view showing a plan view (a) and a side view (b) of the side divider.

FIG. 13 is an explanatory view showing a plan view (a) and a side view (b) of the fuel tank.

BEST MODE FOR CARRYING OUT THE INVENTION

[0011] A shown in Figs. 1 and 2 is a combine according to the present invention. The combine A is provided with a fuselage frame 2 on a pair of left and right crawler type traveling sections 1, 1, and A mowing unit 4 and a transport unit 5 are attached to the front end of the left side via a mowing frame 3 so as to be movable up and down, and a cereal transfer unit 6, a threshing unit 7 and a sorting unit 8 are arranged on the left front side of the machine frame 2. In addition, a waste disposal unit 9 is disposed at the rear, an operation unit 10 is disposed at the front part on the right side of the fuselage frame 2, and a prime mover unit 11 is disposed below the operation unit 10. In addition, a dustproof part 12 is provided at the right side position (outer side position) of the operating part 10, and an intake part 13 is provided at a rear position of the operating part 10, and a grain is provided at a rear position of the intake part 13. A reservoir 14 is provided.

[0012] In this way, the culm is cut by the reaping unit 4, and the cereal mash 1 "is transported by the transport unit 5 to the rear cereal transporting unit 6 to be transferred to the same cereal transporting unit 6. The cereals are handed over, and the cereal stock is clamped by the cereal masher 6 and transferred to the rear with the tip inserted into the threshing unit 7.

[0013] At this time, the head of the cereal is threshed by the threshing unit 7, and the threshed grain is sorted by the sorting unit 8, and only the fresh grains are transported to the grain storage unit 14 and stored. It is doing so.

[0014] The threshed cereal is transported to the waste disposal unit 9 as waste, and is shredded and discharged by the waste disposal unit 9.

[0015] Here, in the present embodiment, as shown in Figs. 1 and 12 (a) and 12 (b), one side of the body frame 2 from the front end of one side of the cutting unit 4 (left side in the present embodiment). Side divider 80 is attached to the side (left side in this embodiment) rear end so as to bulge outward, and the side divider 80 guides the uncut cereals backward while separating them from the fuselage. The configuration of the side divider 80 will be described below with reference to FIGS. 12 (a) and 12 (b). 12 (a) is a plan view of the side divider 80, and FIG. 12 (b) is a side view of the side divider 80.

[0016] [Description of side divider 80]

That is, as shown in FIGS. 12 (a) and 12 (b), the side divider 80 The front divider forming body 81 arranged on the left side in the present embodiment, the rear divider forming body 82 arranged on one side of the body frame 2 (the left side in the present embodiment), and the front divider forming body 81. And an intermediate divider forming body 83 disposed between the rear divider forming body 82 and the intermediate divider forming body 83, the uncut grain guided along the front divider forming body 81. The kite is relayed to the rear divider forming body 82.

Then, as shown in FIGS. 12 (a) and 12 (b), the front divider forming body 81 is formed from a forming body piece 84 and a support piece 85 that supports the forming body piece 84. Yes.

[0018] The formed body piece 84 is formed by bending a rod-like piece extending in the front-rear direction into a convex arc shape outwardly, and the front-rear piece 86 is inserted in the front left part of the cutting frame 3 via the front pivot piece 86. The front end 84a is pivotally connected by a front pivot pin 87 oriented in the direction, and the rear end 84b is arranged on the left front side of the fuselage frame 2.

[0019] The support piece 85 is formed by bending a rod-like piece extending in the front-rear direction into a convex arc shape outward, and the front-rear direction is interposed in the middle part on the left side of the cutting frame 3 via the rear pivot piece 88. The front end 85a is pivoted and connected by the rear pivot pin 89, and is connected and integrated along the inner surface of the formed body piece 84 from the midway 85b to the rear end 85c. ing.

[0020] In this way, the front divider forming body 81 has a use position (a) projecting outward from the cutting part 4 and a storage position (b) bounced up along the side surface of the cutting part 4. ) And position changeable.

[0021] Further, as shown in FIGS. 12 (a) and 12 (b), the rear divider forming body 82 supports the formed body piece 90 extending in the front-rear direction and the front and rear portions of the formed body piece 90. The front and rear support pieces 91 and 92 are formed.

[0022] The formed body piece 90 is formed by bending a front end portion 90a and a rear end portion 90b of a straight square pipe piece extending in the front-rear direction inwardly. 90c is a midway part.

[0023] The front support piece 91 is formed in a bar shape extending in the left-right direction, and an outer end 91a is connected to the front end 90a of the formed body piece 90, while the left front of the body frame 2 The inner end portion 91b is slidably passed through the cylindrical front sliding guide body 93 provided in FIG.

[0024] The rear support piece 92 is formed in a bar shape extending in the left-right direction, and an outer end 92a is connected to the middle part 90c of the formed body main piece 90, while being provided at the left rear part of the body frame 2. Cylindrical The inner end portion 92b is slidably inserted into the rear sliding guide body 94.

[0025] In this way, the rear divider forming body 82 is laterally slid and moved between the use position (c) projecting outward from the fuselage frame 2 and the storage position (d) close to the fuselage frame 2. (Horizontal slide movement) can be freely changed so that the position can be changed.

[0026] Moreover, the rear divider forming body 82 has a strong structure so as to function as a step in which an operator can get on and work at the use position (c).

Further, as shown in FIGS. 12 (a) and 12 (b), the intermediate part divider forming body 83 supports the forming body piece 95 extending in the front-rear direction and the front and rear portions of the forming body piece 95. It is formed from the rear support piece 96,97.

[0028] The formed body main piece 95 is formed by bending a rod-like piece extending in the front-rear direction into an outwardly convex arc shape, and is arranged close to the airframe frame to substantially the same position as the rear divider forming body 82. The middle portion 95a is disposed above the rear end portion 84b of the formed body piece 84 of the front divider forming body 81 and the front end portion 90a of the formed body piece 90 of the rear divider forming body 82. These are superposed in the vertical direction in plan view, and at least in plan view, the formed body pieces 84, 90, 95 of the divider forming bodies 81, 82, 83 are continuous in the front-rear direction. Thus, the force S for relaying the uncut grain culm guided along the front divider forming body 81 to the rear divider forming body 82 can be achieved.

[0029] In addition, both the front divider forming body 81 and the rear divider forming body 82 can take any posture between the use position (a) (c) and the storage position (b) (d). At least in a plan view, the formed body piece 84 of the front divider forming body 81 and the formed body piece 95 of the intermediate divider forming body 83 are partially polymerized, and the formed body of the intermediate divider forming body 83. The main piece 95 and the formed main piece 90 of the rear divider forming body 82 are arranged so as to partially overlap.

[0030] The front support piece 96 is formed in a rod shape extending in the left-right direction, and an outer end portion 96a is continuously provided at the front portion of the formed body piece 95, and an inner end portion is provided at the front portion of the body frame 2. 96b is fixed.

[0031] The rear support piece 97 is formed in a bar shape extending in the left-right direction, and an outer end 97a is continuously provided in the middle of the formed body piece 95, and an inner end 97b is provided at the front of the body frame 2. Are fixed. In this way, the intermediate divider forming body 83 is capable of relaying the uncut grain culm guided along the front divider forming body 81 to the rear divider forming body 82. Therefore, the uncut grain culm guided along the front divider forming body 81 can be smoothly and surely handed over to the rear divider forming body 82, and the uncut grain culm is smoothly transferred to the rear divider forming body 82. It is possible to reliably prevent the conventional problem of being caught without being caught.

[0033] At this time, the intermediate divider forming body 83 is disposed close to the body frame 2 up to substantially the same position as the rear divider forming body 82 disposed at the storage position (d) and is fixedly installed. Operation with the conventional side divider is possible by simply changing the part divider forming body 81 and the rear divider forming body 82 to the use position (a) (c) and the storage position (b) (d) as required. The effort is not changed, and the uncut cereal can be guided smoothly and reliably backward.

[0034] Moreover, both the front divider-forming body 81 and the rear divider-forming body 82 have any posture between the force use position (a) (c) and the storage position (b) (d). In addition, at least in a plan view, the formed body piece 84 of the front divider forming body 81 and the formed body piece 95 of the intermediate divider forming body 83 are partially polymerized, and the formed body piece of the intermediate divider forming body 83 95 and the formed part piece 90 of the rear divider forming body 82 are arranged so as to partially overlap, so that the uncut cereals are formed from the formed body piece 84 of the front divider forming body 81 → the middle part divider. The formed body piece 95 of the formed body 83 is smoothly and reliably guided rearward along the formed body piece 90 of the rear divider forming body 82 in order.

[0035] As a result, it is possible to reliably prevent the occurrence of a problem that the uncut grain cereal is caught at the joint portions of the formed body pieces 84, 90, 95 and is not guided smoothly.

[0036] Hereinafter, each configuration of the above-described threshing unit 7, sorting unit 8, exclusion processing unit 9, operation unit 10, and prime mover unit 11 will be described more specifically.

[0037] [Description of Threshing Unit 7]

That is, as shown in FIGS. 4 and 5, the threshing unit 7 has a handling cylinder 21 disposed in the handling chamber 20, and a receiving net 22 is stretched directly below the handling cylinder 21. As shown in FIG. 7, a processing chamber 38 is provided adjacent to the right side of the processing chamber 20, and a processing cylinder 23 is disposed in the processing chamber 38. It is arranged at the right rear position. [0038] The handling cylinder 21 is provided with a large number of teeth 25 protruding from the outer peripheral surface of a cylindrical handling body 24 with the axis line in the front-rear direction. Front 'rear end walls 26 and 27 are provided, and the front and rear end walls 26 and 27 are penetrated by a barrel support shaft 28 with the axis line in the front-rear direction in the center of the front and rear end walls 26 and 27. Between the walls 29 and 30, the above-mentioned handling cylinder support shaft 28 is rotatably installed.

[0039] Further, the receiving net 22 is stretched directly below the handling cylinder main body 24 via a receiving net support frame 31 formed in a semicircular arc shape when viewed from the front, and as shown in FIG. A mesh boundary portion 32 is formed at approximately two-thirds of the width, and the size of the mesh 34 of the rear receiving mesh forming body 33 located behind the mesh boundary portion 32 is defined as the mesh boundary portion 32. It is formed larger than the size of the mesh 36 of the front receiving net forming body 35 positioned further forward. 37 is a notch communicating with the processing cylinder 23.

That is, the left and right width Wla of the mesh 34 of the rear receiving net forming body 33 is formed substantially the same as the left and right width W2a of the mesh 36 of the front receiving net forming body 35 and the rear receiving net forming body 33 The front-rear width Wlb of the mesh 34 is formed to be 1.2 to 1.5 times larger than the front-rear width W2b of the mesh 36 of the front receiving net forming body 35.

[0041] Here, as shown by a one-dot chain line P in FIG. 4, the mesh boundary line portion 32 is arranged in front of the start end portion of the chaff sheave 54 provided in the sorting body 50 described later to form a front receiving net. Grains that have leaked through the body 35 are received by the front / rear feed pans 52, 53 provided in the selection body 50, and are subjected to specific gravity selection by the front / rear feed pans 52, 53 and the rear receiving Grains that have leaked through the net-forming body 33 are subjected to wind sorting by the sorting wind from the second tang 57 as pre-fan that flows upward from below the chaff sheave 54.

[0042] In this way, the single grains are caused to leak onto the front / rear feed pans 52, 53 by the front receiving net forming body 35, and the single grains are made to have a specific gravity by the front / rear feed pans 52, 53. In addition to sorting, the rear receiving mesh forming body 33 enables the wind to be sorted by the sorting wind from the second Kara 57 that flows from the bottom to the top of the chaff sheave 54, thus improving the sorting efficiency. It is possible to make S.

Further, as shown in FIGS. 3, 7 and 8, a handling cylinder 21 provided in the threshing section 7 and a sorting body 50 provided in the sorting section 8 described below immediately below the handling cylinder 21 are provided. In the meantime, the grain flow guide 40 Is arranged.

That is, as shown in FIG. 3, FIG. 7, and FIG. 8, the grain flow guide body 40 includes a guide body piece 41 formed in a rectangular plate shape extending in the front-rear direction, and the guide body piece. It is formed from a mounting edge 42 formed on the upper edge of 41.

[0045] Then, the mounting edge 42 is attached to the lower portion of the right side wall 20a of the handling chamber 20 with the mounting bolt 43, and the guide body main piece 41 is suspended downward inwardly, and the guide body main piece The lower end edge 41a of 41 is arranged above the right side of the sorting body 50, which will be described later, and a grain flow guide surface 41b is formed on the upper surface of the guide piece 41, along the grain flow guide surface 41b. Thus, the grain that has been threshed and leaked by the barrel 21 is guided to flow toward the center of the sorting body 50.

In addition, the rear end edge portion 41 c of the guide body piece 41 is positioned near the rear end portion of the rear feed pan 53 or near the front end portion of the chaff sheave 54.

[0047] Further, the front and rear end edges of the guide body main piece 41 are folded substantially at right angles to form reinforcing and connecting pieces 41c and 41c, and the front reinforcing and connecting piece 41c is provided in the handling chamber 20. Connected to front wall 29.

[0048] In this way, the grain flow guide surface 41b of the grain flow guide body 40 disposed between the handle cylinder 21 and the sorting body 50 is threshed by the handle cylinder 21 and leaked. Since the grain can be guided to flow toward the center of the sorting body 50, the sorting efficiency by the sorting body 50 can be ensured satisfactorily even when the amount of grain is large.

[0049] At this time, the grain flow guide body 40 is formed in a plate shape extending in the front-rear direction, the grain flow guide surface 41b is formed on the upper surface, and the grain flow guide surface 41b is selected as the sorting body 50. Since the grain flow guide body 40 has a simple structure and a compact configuration, the degree of freedom of the arrangement position of the grain flow guide body 40 is increased. It can be enlarged and can be easily placed at the required position.

[0050] In addition, the rear end edge portion 41c of the guide body main piece 41 is positioned in the vicinity of the rear end portion of the rear feed pan 53 or in the vicinity of the front end portion of the chaff sheave 54. In addition, the grain can be flowed and guided by the grain flow guide surface 41b over the entire width of the rear feed pan 53.

[0051] Further, in the middle part of the guide body main piece 41, a trapezoidal notch is formed above the lower end part. A communication cutout 44 is formed, and the communication cutout 44 is communicated in the left-right direction with a second return port 45 formed in the lower portion of the right side wall 20a of the handling chamber 20, thereby The second grain is reduced from the reduction port 45 through the communication cutout 44 so as to be reduced onto the sorting body 50.

[0052] [Description of Sorting Unit 8]

That is, as shown in FIGS. 3, 4 and 8, the sorting unit 8 has a sorting body 50 disposed in a position below the handling cylinder 21 and the processing cylinder 23 provided in the threshing unit 7 so as to be swingable back and forth. The sorting body 50 receives the threshing that is threshed and supplied by the handling cylinder 21 and the processing cylinder 23 and collects the first item for recovery (first grain) and the second item for re-sorting (second item). Grain) and sort.

[0053] In the sorting body 50, a front feed pan 52 and a rear feed pan 53 are provided at the front portion of the sorting frame 51 with a step, and a chaff sheave 54 is provided at a rear position of the rear feed pan 53. The Strollac 55 is disposed at the rear position of the chaff sheave 54, and the Glen sheave (not shown) is disposed at the lower position.

[0054] Further, a second tang 57 as a pre-fan is disposed at a position below the front feed pan 52, and the second tang 57 forms a sorting wind between the steps h of the front and rear feed pans 52, 53. At the same time, the first tang 58 as a main fan is arranged below the rear feed pan 53, and the sorting wind acts on the rear of the sorting body 50 located behind the rear feed pan 53. I try to let them.

[0055] In the lower position of the chaff sheave 54, a first object receiving rod 59 that extends in the left-right direction and receives the first object is disposed. Items are collected by the first material collection body (not shown) and transported to the threshing storage unit 14.

[0056] Further, a second object receiving rod 60 that extends in the left-right direction and receives the second object is disposed at a lower position of the Strollac 55. The second product is recovered by a second product reductant (not shown), reduced on the front feed pan 52, and re-sorted by the sorter 50.

That is, the leading end of the second reducing body is connected to the second reducing port 45 opened in the right side wall 20a of the handling chamber 20 as described above, and is connected to the front feed pan 52 through the second reducing port 45. The second item is released on top of it and dropped for reduction. In FIG. 8, 62 is a guide piece, and the second product reduced by the guide piece 62 is transferred and guided to the center side. [0058] In this way, the second product is reduced on the front feed pan 52 and re-sorted, so that the second grain and dust are collected on the front feed pan 52. When the particles are dispersed and further dropped onto the rear feed pan 53, the sorting air from the second tang 57 is applied between the steps h of the front and rear feed pans 52, 53, so that the grains and The dust can be reliably sorted out, and the sorting performance can be improved. As a result, the recovery rate of the first item can be improved.

[0059] Further, as shown in FIG. 9, the above-described chaff sheave 54 includes left and right side walls of the sorting frame 51.

Between 51a and 51a, a large number of them are horizontally mounted with an interval in the front-rear direction and can be swung freely in the front-rear direction, so that the interval between the chaff sheaves 54, 54 adjacent in the front-rear direction can be adjusted.

That is, the chaff sheave 54 has left and right side walls of the sorting frame 51 as shown in FIG. 9 (b).

51a, 51a is pivotally supported by pivots 54a, 54a with the upper side ends oriented in the left-right direction, and a connecting pin 54b is provided at the lower left end, so that the left pivot 54a of each chaff sheave 54 is forward and rearward. The connecting pin 54b of each chaff sheave 54 is connected by the lower connecting body 64 extending in the front-rear direction, and the interval adjusting lever 66 is interlocked to the connecting body 64 via the interlocking body 65. Then, the lower connecting body 64 is moved forward and backward with respect to the upper connecting body 63 by the same distance adjusting lever 66, and the intervals between the chaff sheaves 54, 54 are integrated into a plurality of stages (in this embodiment, five stages). ) Can be adjusted.

[0061] In addition, the distance adjusting lever 66 can be disposed on the outer side of the side wall 67 through an opening 67a formed in the side wall 67 of the sorting section 8, and the distance adjusting lever 66 can be manually operated from the outside. Try to be able to do it. 68 is a transparent closing body for closing the opening 67a, and 69 is a distance adjusting guide body.

Here, as shown in FIG. 9 (a), a lower part 161 of the shielding body 160 extending in the front-rear direction and an upper part 162 of the shielding body 160 are attached to the front part of the lower coupling body 64. Is arranged on the side of the upper connecting body 63 so as to be in an inner / outer polymerization state, and the upper part 162 causes a gap S generated between the two from the left side when the lower connecting body 64 is separated from the upper connecting body 63 from the left side. It can be shielded at all times. Reference numeral 163 denotes a front interference avoidance recess, and 164 denotes a rear interference avoidance recess. [0063] In this way, by always shielding the gap S by the upper part 162 of the shield 160, the grain is discharged to the outside of the left side of the sorting body 50 through the gap S and further to the outside through the opening 67a. Is prevented.

[Description of Exclusion Processing Unit 9]

That is, as shown in FIG. 1 and FIG. 2, the waste disposal unit 9 receives the grain transported backward by the grain transporting unit 6 as waste and transports it gradually toward the center 70. And a waste cutter 71 that shreds waste transported by the waste transport body 70.

[Description of Driving Unit 10]

That is, as shown in FIG. 1, the driving unit 10 has the steering lever 73 installed on the front operation column 72, and the driver's seat 74 is disposed behind the steering lever 73. Install a side operation column 75 on the left side.

[Description of Motor Unit 11]

That is, as shown in FIGS. 1, 2, and 10, the prime mover 11 has the engine E disposed in an engine room 76 formed below the driver's seat 74 and an intake port (not shown) of the engine E. And the intake air passage 13 is connected to the exhaust port 77 of the engine E, while the outside air taken in through the intake air portion 13 is used for combustion in the engine E. The exhaust gas is exhausted through the exhaust path forming body 78 by being connected.

[0067] As shown in FIGS. 2, 10, and 11, the exhaust path forming body 78 connects the lower end of the exhaust short pipe 79 to the exhaust port 77 of the engine E, and the upper end of the exhaust short pipe 79. A muffler 100 is connected to the exhaust muffler 100, and the base end (front end) of the exhaust long pipe 101 is connected to the muffler 100. The muffler 100 is disposed immediately above the engine E, and the exhaust long pipe 101 has an opening with its front end (rear end) protruding downward from the part of the machine body frame 2 located between the grain storage unit 14 and the sorting unit 8.

As shown in FIG. 10 and FIG. 11, the exhaust long pipe 101 includes a long pipe front half 102 and a long pipe rear half 103, and a front end (rear end) of the long pipe front half 102 is provided. ) The first cooling air suction part 104 is provided between 105 and the base end part (front end part) 106 of the long pipe rear part 103, and the first cooling air suction part 104 is arranged in the vicinity of the second tang 57 as a prefan provided in the sorting section 8.

Here, as shown in FIG. 11, the first cooling air suction portion 104 is attached with a first cooling air suction guide body 107 formed in an umbrella shape at the front end portion 105 of the long tube front half 102 and is long. By fitting the proximal end portion 106 of the long tube rear half portion 103 to the outer peripheral surface of the distal end portion 105 of the tube front half portion 102, the tube long half portion

The base end of 103 is arranged in the first cooling air suction guide body 107.

[0070] Then, between the inner peripheral surface of the first cooling air suction guide body 107 and the outer peripheral surface of the base end portion 106 of the long tube rear half portion 103, and within the base end portion 106 of the long pipe rear half portion 103. A first cooling air suction path 108 is formed in which the peripheral surface communicates with the outer peripheral surface of the front end portion 105 of the long tube front half 102. Reference numeral 114 is a long tube first half stage, and 115 is a long tube second half stage.

In this way, the first cooling air suction path 108 is depressurized by the exhaust gas fed from the distal end portion 105 of the long tube first half portion 102 into the proximal end portion 106 of the long tube second half portion 103, and the first The outside air is sucked into the long pipe latter part 103 through the cooling air suction passage 108.

[0072] At this time, since the first cooling air suction portion 104 is disposed in the vicinity of the second tang 57 as a prefan, the first cooling air suction passage 108 of the first cooling air suction portion 104 is The cooling air with the small dust sucked in by the second hot spring 57 is sucked in, and the exhaust can be cooled, and the small dust is not sucked.

[0073] Therefore, it is possible to surely prevent the problem that a fire occurs due to the combustion of the dust due to the exhaust gas heated at high temperature.

[0074] Further, a heat insulating pipe 109 is fitted on the outer peripheral surface of the long pipe rear half 103, and the base end of the heat insulating pipe 109 is fitted.

A second cooling air suction part 111 is provided between 110 and the base end part 106 of the long pipe rear part 103.

2 The cooling air suction part 111 is arranged in the vicinity of the second tang 57 as a prefan provided in the sorting part 8.

Here, as shown in FIG. 11, the second cooling air suction portion 111 is attached with a second cooling air suction guide body 112 formed in an umbrella shape at the distal end portion 106 of the long tube rear half portion 103 and is insulated. The base end of the pipe 109 is disposed in the second cooling air suction guide body 112.

[0076] Then, between the inner peripheral surface of the second cooling air suction guide body 112 and the outer peripheral surface of the base end portion 110 of the heat insulating tube 109, and the inner peripheral surface and the long tube of the base end portion 110 of the heat insulating tube 109. A second cooling air intake passage 113 is formed that communicates with the outer peripheral surface of the base end portion 106 of the rear half portion 103. 116 is a guide body retaining ring 117 is a heat insulating tube stage, and 118, 119, 120 are fixing brackets.

[0077] In this way, the second cooling wind suction passage 113 is depressurized by the exhaust gas discharged from the tip opening 121 of the long pipe rear half portion 103, and the outside air is insulated through the second cooling wind suction passage 113. 109 is inhaled.

[0078] At this time, since the second cooling air suction part 111 is disposed in the vicinity of the second tang 57 as the prefan, the second cooling air suction part 111 of the second cooling air suction part 111 is The cooling air with the small dust sucked in by the second hot spring 57 is sucked in, and the exhaust can be cooled, and the small dust is not sucked.

[0079] Therefore, it is possible to reliably prevent a problem that a small dust is burned by exhaust gas heated at a high temperature to cause a fire.

FIG. 13 (a) is an explanatory plan view of the fuel tank 125, FIG. 13 (b) is an explanatory rear view of the fuel tank 125, and the mounting structure of the fuel tank 125 will be described below.

[0081] Description of fuel tank 125

That is, the fuel tank 125 is formed by connecting the main tank 126 and the sub tank 127 via the communication pipe 128. 129 is an oil filler port, 130 is an oil supply pipe, and 131 is a filter.

[0082] Then, one of the body frame 2 formed by laterally extending a left and right extended frame forming piece 135 extending in the left and right direction at the rear part of the pair of left and right front and rear extended frame forming pieces 133 and 134 extending in the front and rear direction. A tank support 132 is detachably attached to the tank, and the fuel tank 125 is detachably attached to the tank support 132.

Here, the tank support part 132 detachably mounts a detachable frame forming piece 136 extending in the left-right direction between the rear end portions of the front and rear extension frame forming pieces 133 and 134, and both frame forming pieces

A plurality of (four in this embodiment) front and rear extension pieces 137 extending in the front-rear direction between 135 and 136 are formed by being detachably mounted horizontally with a space in the left-right direction.

The detachable frame forming piece 136 is provided with connecting pieces 138 and 139 at the left and right end portions, and the connecting pieces 138 and 139 are connected to the rear end face portions 140 and 141 from the rear side to the rear end surface forming portions 133 and 134 from the rear. While being brought into contact with the polymerized state, it is detachably connected by connecting bolts 142 and 143 having axial lines directed in the front-rear direction.

[0085] Each of the front and rear extension pieces 137 has a front end portion raised upward to form a connection piece 144. The binding piece 144 is brought into contact with the rear surface of the left and right extension frame forming piece 135 in a superposed state from the rear, and is detachably connected by a connecting bolt 145 having an axis line in the front-rear direction.

[0086] In addition, each of the front and rear extension pieces 137 has the rear end 146 brought into contact with the lower surface of the detachable frame forming piece 136 in a downward force polymerization state, and is attachable / detachable by a connecting bolt 147 whose axis is directed vertically. It is connected.

[0087] Further, the rear end of the central front / rear extension frame forming piece 151 that extends in the front / rear direction to form a part of the fuselage frame 2 is extended to the vicinity of the middle part of the detachable frame forming piece 136. The connecting piece 152 provided at the end and the connecting piece 153 provided in the middle part of the detachable frame forming piece 136 are brought into contact with each other in a superposed state in the left-right direction, and are detachable by a connecting bolt 154 with the axis line directed in the left-right direction. Connect to

[0088] In addition, the front / rear belt connecting pieces 148, 148, 149, and 149, which are opposed to each other in the front-rear direction, are provided on the left and right extension frame forming pieces 135 and the detachable frame forming pieces 136, respectively. The main tank 126 is fixed from above by the fixing belts 150, 150 by extending the fixing belts 150, 150 extending in the front-rear direction between the connecting pieces 148, 148, 149, 149.

[0089] Then, belt connecting pieces 155, 156 are provided to project in the middle of the middle front / rear distraction frame forming piece 151 and the middle of the right front / rear distraction frame forming piece 134 so as to face each other in the left-right direction. A fixing belt 157 extending in the left-right direction is detachably hung between the belt connecting pieces 155 and 156 so that the sub tank 127 can be fixed from above by the fixing belt 157. Reference numeral 158 denotes a belt connecting bolt.

In this way, when the fuel tank 125 is removed from the fuselage frame 2 and maintenance is performed, the tank support portion 132 is removed according to the following procedure.

[0091] (1) Remove the fixing belts 150, 150, 157 in advance.

(2) Next, the connecting pieces 138, 139 of the detachable frame forming piece 136 are removed from the rear end surface portions 140, 141 of the front and rear extension frame forming pieces 133, 134, and the connecting piece 153 of the detachable frame forming piece 136 is removed. Is removed from the connecting piece 152 of the front and rear extension frame forming piece 151.

[0093] (3) The connecting piece 144 of each of the front and rear extension pieces 137 is removed from the rear surface of the left and right extension frame forming pieces 135. [0094] In this way, the tank support 132 can be easily removed rearward and downward from the fuselage frame 2, and the main tank 126 and sub tank 127 can be removed from the tank support 132 as appropriate. Maintenance can be performed.

Industrial applicability

[0095] (1) In the present invention described in claim 1, in a combine comprising: a threshing unit for threshing the cereal mash that has been removed; and a selection unit for selecting the grain threshed by the threshing unit In addition, a grain flow guide body is disposed between the handling cylinder provided in the threshing section and the sorting body provided in the sorting section directly below the handling cylinder. A grain flow guide surface is provided for guiding the grains that have been threshed and leaked by the barrel to flow toward the center of the sorting body.

[0096] In this way, the grain flow guide surface of the grain flow guide disposed between the handling cylinder and the sorting body allows the grain that has been threshed and leaked by the handling cylinder to flow through the sorting body. Since it can be guided to flow closer to the center, it is possible to ensure a good sorting efficiency by the sorter even when the amount of grains is large.

(2) In the present invention according to claim 2, the grain flow guide body is formed in a plate shape extending in the front-rear direction, the grain flow guide surface is formed on the upper surface, and the grain flow guide is provided. The surface is inclined to the center of the sorting body.

[0098] In this way, the grain flow guide body has a simple structure and is compactly configured, so the degree of freedom of the arrangement position of the grain flow guide body can be increased, and the required position can be increased. It can be arranged easily.

[0099] (3) In the present invention according to claim 3, in a combine comprising a threshing unit for threshing the lump of cereal removed and a selection unit for selecting the grain threshed by the threshing unit In addition, a receiving net is stretched at a position directly below the handling cylinder provided in the threshing section, and the receiving net forms a mesh boundary line at a position that is approximately two-thirds of the front and rear width. The mesh size of the rear receiving net forming body positioned rearward is larger than the mesh size of the front receiving net forming body positioned further forward than the mesh boundary line portion, and the mesh boundary line portion is Arranged in front of the starting end of the chief sheave provided in the sorting body, the grains leaking through the front receiving net forming body are received by the feed pan provided in the sorting body, and the specific gravity is sorted by the feed pan. And the rear receiver Grains that have leaked through the net former are wind-sorted by the sorting wind from the prefan that flows from the bottom to the top of the chief sheave.

In this way, the single grains are allowed to flow down on the feed pan by the front receiving net forming body, and the single grains are subjected to specific gravity selection by the feed pan. The sorting efficiency can be improved because the wind can be sorted by the sorting wind from the pre-fan that flows upward.

Claims

The scope of the claims

[1] A combine equipped with a threshing section for threshing the cereal mash that has been picked up and a sorting section for selecting the grain threshed by the threshing section,

A grain flow guide body is disposed between the handling cylinder provided in the threshing unit and the sorting body provided in the sorting unit directly below the handling cylinder. A combine comprising a grain flow guide surface for guiding the grain that has been threshed and leaked to flow toward the center of the sorting body.

[2] The grain flow guide body is formed in a plate shape extending in the front-rear direction, the grain flow guide surface is formed on the upper surface, and the grain flow guide surface is inclined downward toward the center of the sorting body. The combine according to claim 1, wherein the combine has an inclined surface.

[3] A combine equipped with a threshing unit for threshing the IJ-trimmed cereal grains and a sorting unit for selecting the threshed grains by the threshing unit,

A receiving net is stretched at a position directly below the handling cylinder provided in the threshing section, and the receiving net forms a mesh boundary line at a position approximately two-thirds of the front and rear width. And the mesh size of the rear receiving net forming body positioned rearward is larger than the mesh size of the front receiving net forming body positioned in front of the mesh boundary line,

The mesh boundary line part is arranged in front of the start end of the chief sieve provided on the sorting body, and the grains leaking through the front receiving net forming body are received by a feed pan provided on the sorting body. In addition, the specific gravity was selected by the feed pan, and the grains leaking through the rear receiving net forming body were wind-sorted by the sorting wind from the pre-fan flowing from the bottom to the top of the chief sheave. Combine that features.