CN1993038A - Combine harvester - Google Patents

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

Combine

Technical field

The present invention relates to combine.

Background technology

A scheme of present combine is, have the threshing portion and the sorting portion that harvested paddy stalk are carried out threshing to carrying out sorting through the grain after this threshing portion threshing, the position is provided with the sorting body under the threshing cylinder that is arranged on threshing portion, this sorting body is arranged in the sorting portion, front portion at this sorting body is provided with entry table, simultaneously, glume-shell screen (for example, with reference to TOHKEMY 2000-139183 communique) is set in the rear position of this entry table.

And, on entry table, be provided with a plurality of from the guide body of right-hand end towards inboard rear extension, by each guide body, the grain that leaks down of right side of deflection entry table is directed near the central portion of entry table, so that utilize this entry table to carry out the gravity separation of grain well.

But, when utilizing threshing portion that the good crop of the percentage of thresh is carried out threshing, as mentioned above, even will temporarily be partial to the grain that entry table leaks down by the guide body guiding, because the amount of the grain that leaks down on the bias is big, therefore near the guiding of guide body central portion is not enough, has the problem that can not guarantee to guarantee well by entry table grain to be carried out gravity separation.

And, under threshing cylinder, lay and receive net (Shou Net), grain is drained on the entry table by this reception net, but because this width of mesh that receives net is just the same, therefore barbed grain (thorn さ り grain) is not easy, and has the problem that can not carry out the sorting of this barbed grain expeditiously.

Summary of the invention

Therefore, the invention provides a kind of combine, have the threshing portion and the sorting portion that harvested paddy stalk are carried out threshing to carrying out sorting through the grain after this threshing portion threshing, it is characterized in that, grain flowed down that guide body is provided in the threshing cylinder that is arranged at threshing portion and between the sorting body that is arranged under this disengaging cylinder in the sorting portion, simultaneously, this grain flows down guide body to have grain and flows down guide surface, this grain flow down guide surface to the grain channeling conduct of leaking down through the threshing cylinder threshing, make near its central portion that flows to the sorting body.

And the following feature that constitutes of the present invention is as follows.

(1) grain flows down the plate shape that guide body forms direction extension forwards, backwards, is formed with grain in the above and flows down guide surface, simultaneously, makes this grain flow down the inclined plane of guide surface formation to the central portion side decline inclination of sorting body.

(2) a kind of combine, has the threshing portion that harvested paddy stalk is carried out threshing, with sorting portion to carrying out sorting through the grain after this threshing portion threshing, it is characterized in that, lay reception net (Shou Net at the lower position that is arranged at the threshing cylinder in the threshing portion), simultaneously, this receives net and form mesh boundary line portion on roughly 2/3rds the position of front and back width, make the width of mesh of the rear portion reception net form adult at the rear that is positioned at this mesh boundary line portion, form the width of mesh that receives the net form adult greater than the front portion in the place ahead that is positioned at this mesh boundary line portion, mesh boundary line portion is configured in the place ahead of the initial end that is arranged at the glume-shell screen on the sorting body, receive the grain that the net form adult leaks down by the entry table reception that is arranged on the sorting body by the front portion, carry out gravity separation by this entry table, simultaneously, utilize the sorting wind that flows towards the top from the below of glume-shell screen from preposition fan (プ レ Off ァ Application), the grain that leaks down by rear portion reception net form adult is carried out the wind sorting.

Description of drawings

Fig. 1 is the end view of combine of the present invention.

Fig. 2 is the side-looking key diagram of function bilge construction on the frame of this combine of expression.

Fig. 3 is the side-looking key diagram of the threshing portion and the sorting portion of this combine.

Fig. 4 is the side-looking key diagram of threshing portion.

Fig. 5 is the front view of this threshing portion.

Fig. 6 is the expansion vertical view that receives net.

Fig. 7 be cut threshing portion a part face key diagram.

Fig. 8 be cut threshing portion a part overlook key diagram.

Fig. 9 is the vertical view (a) of expression baffle and the key diagram of end view (b).

Figure 10 is the key diagram of overlooking of prime mover portion and sorting portion.

Figure 11 is the side-looking key diagram of exhaust flow path organizator.

Figure 12 is the vertical view (a) of expression side divider and the key diagram of end view (b).

Figure 13 is the vertical view (a) of expression fuel tank and the key diagram of end view (b).

Embodiment

A illustrated in figures 1 and 2 is a combine of the present invention, this combine A is arranged on frame 2 the caterpillar portion 1 of travelling of pair of right and left, on 1, but on the leading section of the left side of this frame 2, reaping part 4 and delivery section 5 are installed by harvesting framework 3 free lifting ground, front portion, left side on this frame 2 is provided with paddy stalk handover portion 6, threshing portion 7 and sorting portion 8, simultaneously, discharge stalk handling part 9 is set at the rear portion, on the other hand, front portion on the right side of frame 2 is provided with Drive Section 10, lower position at this Drive Section 10 is provided with prime mover portion 11, and dustproof portion 12 is set in the right side of this Drive Section 10 location (outside location), and in the rear position of this Drive Section 10 suction portion 13 is set, grain storage portion 14 is set in the rear position of this suction portion 13.

Like this, receive harvested cereal culm, by delivery section 5 harvested paddy stalk is transported to the paddy stalk handover portion 6 of back upper place then by reaping part 4, hand over to this paddy stalk handover portion 6, clamp paddy stalk root by this paddy stalk handover portion 6, simultaneously, rearward transfer with the state that the fringe head is inserted in the threshing portion 7.

At this moment, the fringe head of paddy stalk is by 7 threshings of threshing portion, and simultaneously, the grain after the threshing carries out sorting by sorting portion 8, only the essence grain is transported in the grain storage portion 14 to store.

And the paddy stalk after the threshing is transported to discharge stalk handling part 9 as discharging stalk, cuts off, discharges processing at this discharge stalk handling part 9.

At this, in the present embodiment, shown in Fig. 1 and Figure 12 (a) and (b), side (being the left side in the present embodiment) rearward end from a side of reaping part 4 (being the left side in the present embodiment) leading section to frame 2, the shape installation side nearside divider 80 that bloats with outside side, make the paddy stalk of not harvesting leave the guiding rearward of fuselage, one side by this side divider 80 one sides, below describe with reference to the structure of Figure 12 (a) and (b) with regard to side divider 80.In addition, Figure 12 (a) is the key diagram of overlooking of side divider 80, and Figure 12 (b) is the end view of side divider 80.

[explanation of side divider 80]

Promptly, shown in Figure 12 (a) and (b), side divider 80 have the side that is arranged on reaping part 4 (being left side side in the present embodiment) anterior nearside divider organizator 81, be arranged on frame 2 a side (being left side side in the present embodiment) rear portion nearside divider organizator 82 and be arranged on anterior nearside divider organizator 81 and rear portion nearside divider organizator 82 between middle nearside divider organizator 83, this centre nearside divider organizator 83 will be relayed on the rear portion nearside divider organizator 82 by the not harvested cereal culm that guides along anterior nearside divider organizator 81.

And shown in Figure 12 (a) and (b), anterior nearside divider organizator 81 is formed by the supporting slice 85 of organizator main leaf 84 and this organizator main leaf 84 of supporting.

Organizator main leaf 84 bends to convex by bar-shaped outside side with direction extension forwards, backwards and forms, via anterior pivot suspension sheet 86, utilize axis leading section 84a pivot to be propped up the front portion, left side that is connected harvesting framework 3 towards the anterior pivot backing pin 87 of fore-and-aft direction, simultaneously, rearward end 84b is arranged on the side of the front portion, left side of frame 2.

The bar-shaped outside side that supporting slice 85 extends direction forwards, backwards bends to convex and forms, leading section 85a pivot is propped up the left side pars intermedia that is connected harvesting framework 3 via back pivot supporting slice 88, utilization towards the rear portion of fore-and-aft direction pivot backing pin 89, simultaneously, supporting slice 85 continuously is provided with, forms one up to rearward end 85c along the medial surface of above-mentioned organizator main leaf 84 from pars intermedia 85b.

Like this, anterior nearside divider organizator 81 can freely be shifted one's position on the use location (a) of stretching out from reaping part 4 outside sides and the reception position (b) of provoking along the side of this reaping part 4.

And shown in Figure 12 (a) and (b), organizator main leaf 90 that rear portion nearside divider organizator 82 is extended by direction forwards, backwards and the front and rear portions supporting slice 91,92 that supports the front and rear portions of this organizator main leaf 90 form.

Organizator main leaf 90 is by the leading section 90a and inwardly square respectively crooked formation of rearward end 90b of the straight square tube sheet of direction extension forwards, backwards.90c is a pars intermedia.

Anterior supporting slice 91 forms the clavate of direction extension to the left and right, outboard end 91a is arranged on continuously the leading section 90a of above-mentioned organizator main leaf 90, and medial end 91b can be inserted the anterior sliding guidance body 93 of logical tubular with being free to slide, this front portion sliding guidance body 93 is arranged on the front portion, left side of frame 2.

Rear support sheet 92 forms the clavate of direction extension to the left and right, above-mentioned outboard end 92a is arranged on continuously on the pars intermedia 90c of above-mentioned organizator main leaf 90, and medial end 92b can be inserted the rear portion sliding guidance body 94 of logical tubular with being free to slide, this rear portion sliding guidance body 94 is arranged on the rear portion, left side of frame 2.

Like this, rear portion nearside divider organizator 82 the use location (c) of stretching out from frame 2 outside sides and with the approaching reception position (d) of this frame 2 on can laterally be free to slide mobile (sideslip is moved), convertible position.

And (c) locates form to strengthen structure to rear portion nearside divider organizator 82 in the use location, and this reinforcement structure also can be used as operating personnel and takes the step of operating and play a role.

And shown in Figure 12 (a) and (b), organizator main leaf 95 that pars intermedia nearside divider organizator 83 is extended by direction forwards, backwards and the front and rear portions supporting slice 96,97 that supports the front and rear portions of this organizator main leaf 95 form.

The bar-shaped outside side that organizator main leaf 95 extends direction forwards, backwards bends to convex and forms, its be configured to up to be in the roughly the same position of rear portion nearside divider organizator 82 till approaching with frame, pars intermedia 95a is arranged on the top of leading section 90a of the organizator main leaf 90 of the rearward end 84b of organizator main leaf 84 of anterior nearside divider organizator 81 and rear portion nearside divider organizator 82, simultaneously, when overlooking and these parts form coincidence status at above-below direction, at least each nearside divider organizator 81 when overlooking, 82,83 organizator main leaf 84,90,95 is continuous on fore-and-aft direction, the not harvested cereal culm along anterior nearside divider organizator 81 guiding can be relayed to rear portion nearside divider organizator 82.

And, anterior nearside divider organizator 81 and rear portion nearside divider organizator 82, no matter take which kind of posture between use location (a), (c) and reception position (b), (d), the organizator main leaf 84 of all being arranged at least anterior nearside divider organizator 81 when overlooking overlaps with organizator main leaf 95 parts of pars intermedia nearside divider organizator 83 and organizator main leaf 90 a part of coincidences of the organizator main leaf 95 of pars intermedia nearside divider organizator 83 and rear portion nearside divider organizator 82.

Anterior supporting slice 96 forms the clavate of direction extension to the left and right, and the front portion with outboard end 96a is arranged on organizator main leaf 95 continuously simultaneously, is fixedly installed on medial end 96b the front portion of frame 2.

Rear support sheet 97 forms the clavate of direction extension to the left and right, and the pars intermedia with outboard end 97a is arranged on organizator main leaf 95 continuously simultaneously, is fixedly installed on medial end 97b the front portion of frame 2.

Like this, since pars intermedia nearside divider organizator 83 can with by along the not harvested cereal culm of anterior nearside divider organizator 81 guiding, be relayed to rear portion nearside divider organizator 82, therefore, can be with by along the unobstructed ground of not harvested cereal culm of anterior nearside divider organizator 81 guiding and hand over to rear portion nearside divider organizator 82 effectively, can prevent from effectively harvested cereal culm not can not be handed over to unobstructedly on the rear portion nearside divider organizator 82 and jammed existing problem.

At this moment, pars intermedia nearside divider organizator 83 be made into up to be in the roughly the same position of the rear portion nearside divider organizator 82 that is arranged on reception position (d) till approaching with frame 2, simultaneously, fixedly install, therefore only (a), (c) and reception position (b), (d) enterprising line position conversion get final product in the use location as required respectively with anterior nearside divider organizator 81 and rear portion nearside divider organizator 82, identical with the complicated and simple degree of the operation of existing side divider, and can be unobstructed and effectively not harvested cereal culm rearward guide.

And, anterior nearside divider organizator 81 and rear portion nearside divider organizator 82, no matter in the use location (a), (c) and reception position (b), (d) take which kind of posture between, all be arranged to organizator main leaf 95 part coincidences of the organizator main leaf 84 of anterior nearside divider organizator 81 and pars intermedia nearside divider organizator 83 when overlooking at least, and the organizator main leaf 95 of pars intermedia nearside divider organizator 83 overlaps with organizator main leaf 90 parts of rear portion nearside divider organizator 82, therefore, can be unobstructed and effectively not harvested cereal culm rearward guide according to the order of the organizator main leaf 90 of organizator main leaf 95 → rear portion nearside divider organizator 82 of organizator main leaf 84 → pars intermedia nearside divider organizator 83 of anterior nearside divider organizator 81.

Its result can prevent the problem that harvested cereal culm not blocks, can not be guided unobstructedly in the junction of each organizator main leaf 84,90,95 effectively.

Below, carry out more specific description with regard to each structure of above-mentioned threshing portion 7, sorting portion 8, discharge stalk handling part 9, Drive Section 10 and prime mover portion 11.

[explanation of threshing portion 7]

Promptly, as shown in Figure 4 and Figure 5, in threshing portion 7, threshing cylinder 21 is arranged in the threshing chamber 20, simultaneously, the position is laid and is received net 22 under this threshing cylinder 21, as shown in Figure 7, process chamber 38 in abutting connection with the right side side that is arranged on threshing chamber 20, will be handled cylinder 23 and will be arranged in this process chamber 38, simultaneously, this processing cylinder 23 is arranged on the rear position, right side of threshing cylinder 21.

And, threshing cylinder 21 is given prominence on the outer peripheral face of the columnar threshing cylinder body 24 of fore-and-aft direction at axis a plurality of threshing teeth 25 is set, end, front and back at this threshing cylinder body 24, forward and backward end wall 26,27 is set respectively, make the central portion of axis towards threshing cylinder fulcrum 28 these forward and backward end walls 26,27 of perforation of fore-and-aft direction, this threshing cylinder 21 is erected between the front and back walls 29,30 of threshing cylinder 20 by above-mentioned threshing cylinder fulcrum 28 free to rotately.

And, receive net 22 by the front see the reception net support plate 31 that forms semicircular arc be laid on threshing cylinder body 24 under, as shown in Figure 6, on roughly 2/3rds the position of front and back width, form mesh boundary line portion 32, make the rear portion at the rear that is positioned at this mesh boundary line portion 32 receive the size of the mesh 34 of net form adult 33, receive the size of the mesh 36 of net form adult 35 greater than the front portion in the place ahead that is positioned at this mesh boundary line portion 32.The 37th, the notch that is communicated with processing cylinder 23.

Promptly, the rear portion receives the left and right sides width W 1a of the mesh 34 of net form adult 33, form with the left and right sides width W 2a of the anterior mesh 36 that receives net form adult 35 roughly the same, simultaneously, the rear portion front and back width W 1b that receives the mesh 34 of net form adult 33 forms 1.2 times～1.5 times the size of the front and back width W 2b of the anterior mesh 36 that receives net form adult 35.

At this, shown in the chain-dotted line P among Fig. 4, mesh boundary line portion 32 is arranged on more the place ahead of the initial part of glume-shell screen 54, this glume-shell screen 54 is arranged on the sorting body 50 described later, utilization be arranged on the sorting body 50 before, rear side entry table 52,53 receptions receive the grain that net form adult 35 leaks down by the front portion, before utilization is somebody's turn to do, rear side entry table 52,53 when carrying out gravity separation, utilization is flowed towards the top from the below of glume-shell screen 54, from sorting wind, carry out the wind sorting to receive the grain that net form adult 33 leaks down by the rear portion as second windmill 57 of preposition fan (プ レ Off ァ Application).

Like this, because can receive net form adult 35 by the front portion drains on the entry table 52,53 of forward and backward side simple grain, and carry out gravity separation by 52,53 pairs of simple grains of entry table of this forward and backward side, simultaneously, can receive net form adult 33 by the rear portion, utilize the sorting wind that flows towards the top from the below of glume-shell screen 54 that barbed grain is carried out the wind sorting from second windmill 57, therefore, can improve the efficiency of separation.

And, as Fig. 3, Fig. 7 and shown in Figure 8, grain being flowed down guide body 40 be arranged between threshing cylinder 21 and the sorting body 50, described threshing cylinder 21 is arranged in the threshing portion 7; Described sorting body 50 under this threshing cylinder 21, be arranged in the sorting described later portion 8.

That is, as Fig. 3, Fig. 7 and shown in Figure 8, grain flows down guide body 40, constitutes by forming tetragonal tabular guide body main leaf 41 that direction forwards, backwards extends and the installation edge portion 42 that is formed on the upper end edge portion of this guide body main leaf 41.

And, utilize construction bolt 43 that the bottom that edge portion 42 is installed in the right side wall 20a of threshing chamber 20 will be installed, make guide body main leaf 41 sagging skewedly towards interior side-lower, simultaneously, limit, the lower end 41a of portion of this guide body main leaf 41 is arranged on the top, right side of sorting body 50 described later, with grain flow down guide surface 41b be formed on this guide body main leaf 41 above so that channeling conduct, make near the grain that leaks down by above-mentioned threshing cylinder 21 threshings flows down the central portion that guide surface 41b flows to sorting body 50 along this grain.

And, make the 41c of end edge portion of guide body main leaf 41 be positioned near the rearward end of rear side entry table 53 or near the leading section of glume-shell screen 54.

And, with the forward and backward ora terminalis portion approximate right angle of guide body main leaf 41 turn back, form and strengthen hold concurrently brace 41c, 41c, the anterior reinforcement brace 41c that holds concurrently is connected with the antetheca 29 of threshing chamber 20.

Like this, owing to can flow down guide surface 41b by being arranged on the grain that grain between threshing cylinder 21 and the sorting body 50 flows down guide body 40, the grain that guiding is leaked down by above-mentioned threshing cylinder 21 threshings runs down near the central portion of sorting body 50, therefore, even under the many situations of the amount of grain, also can guarantee the efficiency of separation of sorting body 50 well.

At this moment, grain flows down the plate shape that guide body 40 forms direction extension forwards, backwards, be formed with grain in the above and flow down guide surface 41b, simultaneously, this grain is flowed down guide surface 41b form, form simple, small-sized structure because grain is flowed down guide body 40, therefore to the inclined plane of the central portion side decline inclination of sorting body 50, can increase the degree of freedom that the position is set that this grain flows down guide body 40, can be arranged on simply on the position that needs.

And, owing to make the 41c of end edge portion of guide body main leaf 41 be positioned near the rearward end of rear side entry table 53 or near the leading section of glume-shell screen 54, therefore, can be on the whole width of front side entry table 52 and rear side entry table 53, utilize grain to flow down guide surface 41b guiding grain to flow down.

And, pars intermedia at guide body main leaf 41 forms connection notch 44, this notch 44 is cut into trapezoidal upward and forms from the bottom, this connection is communicated with the secondary thing return port 45 of the bottom of the right side wall 20a that is formed at threshing chamber 20 at left and right directions with notch 44, and secondary grain is turned back on the sorting body 50 with notch 44 by being communicated with from this secondary thing return port 45.

[explanation of sorting portion 8]

Promptly, as Fig. 3, Fig. 4 and shown in Figure 8, in sorting portion 8, with sorting body 50 can before and after be configured in threshing cylinder 21 that is arranged at above-mentioned threshing portion 7 and the lower position of handling cylinder 23 with freely swinging, receive through above-mentioned threshing cylinder 21 and the threshing object that supply comes after handling cylinder 23 threshings by sorting body 50, and divide to hank and reclaim the one-level thing (one-level grain) of usefulness and divide the secondary thing of selecting for use (secondary grain) again.

And, for sorting body 50, front side entry table 52 and rear side entry table 53 are arranged on with having step difference the front portion of sorting framework 51, glume-shell screen 54 is arranged on the rear position of this rear side entry table 53, stalk tooth bar 55 is arranged on the rear position of this glume-shell screen 54, and grain sieve (not having diagram) is arranged on lower position.

And, be provided as second windmill 57 of preposition fan at the lower position of front side entry table 52, make between the step difference h of sorting wind to forward and backward side entry table 52,52 by this second windmill 57 and to act on, simultaneously, be provided as first windmill 58 of main fan at the lower position of rear side entry table 53, sorting wind is acted on the rear portion of the sorting body 50 at the more rear that is positioned at rear side entry table 53.

And, at the lower position of above-mentioned glume-shell screen 54, the one-level thing receiving slit 59 of direction extension to the left and right, reception one-level thing being set, the one-level things in this one-level thing receiving slit 59 reclaim by one-level thing recovery body (not having diagram), and are transported to grain storage portion 14.

And, lower position at above-mentioned stalk tooth bar 55, the secondary thing receiving slit 60 of direction extension to the left and right, reception secondary thing is set, secondary thing in this secondary thing receiving slit 60 returns body (not having diagram) by the secondary thing and reclaims and send back on the front side entry table 52, carries out sorting once more by sorting body 50 then.

That is, the secondary thing returns the leading section of body, is communicated with secondary thing return port 45 at the right side wall 20a of threshing chamber 20 opening as described above, makes the secondary thing discharge, drop on the front side entry table 52 and return by this secondary thing return port 45.In Fig. 8, the 62nd, guide plate, the secondary thing after will returning by this guide plate 62 passes on, guides to center side.

Like this, owing to being turned back to, the secondary thing carries out sorting again on the front side entry table 52, therefore, grain and foreign material as the secondary thing are disperseed, and, when making these drop on the rear side entry table 53, act on by making between the step difference h of sorting wind from second windmill 57 to forward and backward side entry table 52,53, sorting grain and foreign material can improve sorting effectively.Its result can improve the rate of recovery of one-level thing.

And, as shown in Figure 9, between the left and right sides of sorting framework 51 sidewall 51a, 51a, leave the compartment of terrain at fore-and-aft direction and laterally set up a plurality of above-mentioned glume-shell screens 54, and this glume-shell screen 54 forwards, backwards direction freely swing, can be adjusted in the interval of the glume- shell screen 54,54 of fore-and-aft direction adjacency.

Promptly, shown in Fig. 9 (b), for glume-shell screen 54, by the pivot 54a of axis towards left and right directions, 54a is bearing in the side upper pivot left and right sides sidewall 51a of sorting framework 51, on the 51a, simultaneously, connecting pin 54b is arranged on the left-hand end bottom, the pivot 54a that connects the left side of each glume-shell screen 54 by the top connector 63 of direction extension forwards, backwards, on the other hand, the connecting pin 54b that connects each glume-shell screen 54 by the bottom connector 64 of direction extension forwards, backwards, by interlock body 65 interval adjusting rod 66 is connected on this connector 64, regulate bottom connector 64 by this interval adjusting rod 66 movably with respect to top connector 63 advance and retreat, can many grades of ground one regulate (having five grades in the present embodiment) each glume- shell screen 54,54 interval.

And adjusting rod 66 can carry out manual operation to interval adjusting rod 66 from foreign side by the outer side that the peristome 67a on the sidewall 67 that is formed on sorting portion 8 is arranged on this sidewall 67 at interval.The 68th, the transparent obturator of closed peristome 67a, the 69th, regulate guide body at interval.

At this, shown in Fig. 9 (a), the bottom 161 of the baffle 160 that will extend at fore-and-aft direction is installed in the front portion of bottom connector 64, simultaneously, the state that overlaps with the side of top connector 63 of the outside in the top 162 of this baffle 160 is arranged to is by this top 162, always can cover gap S in bottom connector 64 between generation when top connector 63 leaves.The 163rd, avoid anterior and interfere with recess, the 164th, avoid the rear portion to interfere and use recess.

Like this, always hide gap S, can prevent that grain from spilling to the outside to the left side of sorting body 50 foreign side and then by peristome 67a by this gap S by the top 162 that utilizes baffle 160.

[discharging the explanation of stalk handling part 9]

Promptly, as Fig. 1 and shown in Figure 2, discharge stalk handling part 9 and have the stalk of discharge handover body 70 and discharge stalk cutting knife 71, described discharge stalk is transferred body 70 and will be received, pass near central authorities gradually then as discharging stalk by the paddy stalk that paddy stalk handover portion 6 rearward transports; Described discharge stalk cutting knife 71 will be transferred the discharge stalk chopping that body 70 handovers come by discharging stalk.

[explanation of Drive Section 10]

That is, as shown in Figure 1, in Drive Section 10, will handle that stalk 73 is upright to be located on the anterior operation column 72, driver's seat 74 will be arranged on the rear position of this manipulation stalk 73, and sidepiece be operated column 75 be arranged on the left side location of this driver's seat 74.

[explanation of prime mover portion 11]

Promptly, as Fig. 1, Fig. 2 and shown in Figure 10, in prime mover portion 11, engine E is arranged in the engine room 76 of the below that is formed at above-mentioned driver's seat 74, above-mentioned suction unit 13 is connected with the air-breathing oral area (not having diagram) of this engine E, will be used for internal combustion by the outer gas that this suction unit 13 sucks, on the other hand at engine E, exhaust pathway organizator 78 is connected with the exhaust oral area 77 of this transmitter E, waste gas is discharged by this exhaust pathway organizator 78.

As Fig. 2, Figure 10 and shown in Figure 11, in exhaust pathway organizator 78, the bottom of exhausting stub tube 79 is connected with the exhaust oral area 77 of engine E, silencer 100 is connected with the upper end of this exhausting stub tube 79, the base end part (leading section) of exhaust long tube 101 is connected to form with this silencer 100, silencer 100 be arranged on engine E directly over the position, simultaneously, exhaust long tube 101 makes the outstanding opening of leading section (rearward end) downwards by the part of the frame 2 between grain storage portion 14 and sorting portion 8.

And, Figure 10 and shown in Figure 11, exhaust long tube 101 has long tube first half 102 and long tube latter half of 103, between the base end part (leading section) 106 of leading section (rearward end) 105 of this long tube first half 102 and long tube latter half of 103 the first cooling air suction portion 104 is set, this first cooling air suction portion 104 is arranged on as near second windmill 57 that is arranged at the preposition fan in the sorting portion 8.

At this, as shown in figure 11, in the first cooling air suction portion 104, first cooling air that forms umbrella shape is sucked guide body 107 to be installed on the leading section 105 of long tube first half 102, simultaneously, make the base end part 106 of long tube latter half of 103 chimeric, the cardinal extremity of this long tube latter half of 103 is arranged on first cooling air sucks in the guide body 107 with the outer peripheral face of the leading section 105 of long tube first half 102.

And, form the first cooling air suction portion 108, make between the outer peripheral face of inner peripheral surface that first cooling air sucks guide body 107 and the base end part 106 of long tube latter half of 103 and the outer peripheral face of the inner peripheral surface of the base end part 106 of long tube latter half of 103 and the leading section 105 of long tube first half 102 between be communicated with.The 114th, long tube first half support plate, the 115th, the latter half of support plate of long tube.

Like this, be pressed and delivered to the exhaust in the base end part 106 of long tube latter half of 103 by the leading section 105 from long tube first half 102, the first cooling air inlet passage 108 is depressurized, and outer gas is inhaled in the long tube latter half of 103 by this first cooling air inlet passage 108.

At this moment, near second windmill 57 that the first cooling air suction portion 104 is arranged on as preposition fan, therefore, from the first cooling air inlet passage 108 of this first cooling air suction portion 104, suction has attracted the state of tiny foreign material by second windmill 57 cooling air, can realize the cooling of exhaust, simultaneously, can not suck tiny foreign material.

Therefore, can prevent effectively that tiny foreign material from burning by the exhaust of high temperatureization and cause problems such as fire.

And, heat-insulated pipe 109 is entrenched in the outer peripheral face of long tube latter half of 103, the second cooling air suction portion 111 is arranged between the base end part 106 of the base end part 110 of this heat-insulated pipe 109 and long tube latter half of 103, this second cooling air suction portion 111 is arranged on as being arranged near second windmill 57 of the preposition fan in the sorting portion 8.

At this, as shown in figure 11, in the second cooling air suction portion 111, second cooling air that forms umbrella shape is sucked guide body 112 be installed on the leading section 106 of long tube latter half of 103, simultaneously, the cardinal extremity with heat-insulated pipe 109 is arranged in second cooling air suction guide body 112.

And, form the second cooling air suction portion 113, make between the outer peripheral face of inner peripheral surface that second cooling air sucks guide body 112 and the base end part 110 of heat-insulated pipe 109 and the outer peripheral face of the inner peripheral surface of the base end part 110 of heat-insulated pipe 109 and the leading section 106 of long tube latter half of 103 between be communicated with.The 116th, the guide body back-up ring, the 117th, the heat-insulated pipe support plate, the 118,119, the 120th, fixedly use carriage.

Like this, the second cooling air inlet passage 113 is depressurized by the exhaust of discharging from the front end opening 121 of long tube latter half of 103, and outer gas is inhaled in the heat-insulated pipe 109 by this second cooling air inlet passage 113.

At this moment, near second windmill 57 that the second cooling air suction portion 111 is arranged on as preposition fan, therefore, suck the cooling air that has attracted the state of tiny foreign material by second windmill 57 from the second cooling air inlet passage 113 of this second cooling air suction portion 111, can realize exhaust is cooled off, simultaneously, can not suck tiny foreign material.

Therefore, can prevent effectively that tiny foreign material from burning, causing the problem of fire by the exhaust of high temperatureization.

Figure 13 (a) be expression fuel tank 125 overlook key diagram, Figure 13 (b) is the back side key diagram of this fuel tank 125, below describes with regard to the mounting structure of this fuel tank 125.

[explanation of fuel tank 125]

That is, fuel tank 125 connects main fuel tank 126 by communicating pipes 128 and secondary fuel tank 127 forms.The 129th, fuel feeding oral area, the 130th, fuel feed pump, the 131st, filter.

And, with fuel tank support 132 detachables be installed on the part of frame 2, this frame 2 by will be to the left and right direction extend about extend front and back that framework forms the pair of right and left that sheet 135 crossbearers extend in direction forwards, backwards and extend the rear portion that framework forms sheet 133,134 and form, with above-mentioned fuel tank 125 detachables be installed on this fuel tank support 132.

At this, the dismounting frame shape 136 detachable ground crossbearers in blocks that fuel tank support 132 extends by direction to the left and right extend framework and form between the rearward end of sheet 133,134 in front and back, with the front and back Extendible flake 137 of many (being 4 in the present embodiment) direction extension forwards, backwards leave the compartment of terrain at left and right directions, detachable ground crossbearer forms between two frame shapes in blocks 135,136.

And, in dismounting frame shape in blocks 136, brace 138,139 is arranged on right and left end, make each brace 138,139 extend rear end face 140,141 butts that framework forms sheet 133,134 from the rear with coincidence status and front and back, simultaneously, connect by connecting bolt 142, the 143 detachable ground of axis towards fore-and-aft direction.

And, Extendible flake 137 erects, forms brace 144 upward with leading section before and after each, make this brace 144 from the rear with coincidence status with about extend the back butt that framework forms sheet 135, simultaneously, connect by the connecting bolt 145 detachable ground of axis towards fore-and-aft direction.

And, before and after each in Extendible flake 137, make rearward end 146 from the below below coincidence status and dismounting frame shape in blocks 136 butt, simultaneously, connect by the connecting bolt 147 detachable ground of axis towards above-below direction.

And, the rearward end that makes direction forwards, backwards extend, form to extend before and after the central portion of a part of frame 2 framework to form sheet 151 extends near the pars intermedia of dismounting frame shape in blocks 136, become coincidence status with being arranged on the brace 152 of this rearward end and the brace 153 of the pars intermedia that is arranged on dismounting frame shape in blocks 136 at the left and right directions butt, simultaneously, connect by the connecting bolt 154 detachable ground of axis towards left and right directions.

And, about extend framework and form on sheet 135 and the dismounting frame shape in blocks 136, two groups of relative with fore-and-aft direction respectively front and rear portions band braces 148,148,149,149 are set, fixed band 150,150 by direction extension forwards, backwards rides between each front and rear portions band brace 148,148,149,149, can utilize two fixed bands 150,150 from upper fixed main fuel tank 126.

And, each band brace 155,156 is extended front and back that framework forms the pars intermedia of sheet 151 and right side before and after the central portion and extends on the pars intermedia that framework forms sheet 134 relatively outstanding being arranged on of left and right directions, by will be to the left and right the fixed band 157 detachables ground that extends of direction ride between two band braces 155,156, can utilize this fixed band 157 from upper fixed pair fuel tank 127.The 158th, the band connecting bolt.

Like this, in that fuel tank 125 is unloaded when carrying out maintaining etc. from frame 2, pull down fuel tank support 132 according to following operating sequence.

(1) pulls down fixed band 150,150,157 in advance.

(2) then, pull down the brace 138,139 of dismounting frame shape in blocks 136 from the rear end face 140,141 of front and back elongation frame frame formation sheet 133,134, simultaneously, pull down the brace 153 of dismounting frame shape in blocks 136 from the brace 152 of central portion front and back extension framework formation sheet 151.

(3) from about extend the brace 144 that Extendible flake 137 before and after each is pulled down in back that framework forms sheet 135.

Like this, can be simply fuel tank support 132 be pulled down towards the back lower place from frame 2, can be carried out maintaining etc. simply by suitably main fuel tank 126 and secondary fuel tank 127 being unloaded from this fuel tank support 132 respectively.

(1) technical scheme 1 described the present invention is a kind of combine, have the threshing portion and the sorting portion that harvested paddy stalk are carried out threshing to carrying out sorting through the grain after this threshing portion threshing, grain flowed down that guide body is provided in the threshing cylinder that is arranged at threshing portion and between the sorting body that is arranged under this disengaging cylinder in the sorting portion, simultaneously, this grain flows down guide body to have grain and flows down guide surface, this grain flow down guide surface to the grain channeling conduct of leaking down through the threshing cylinder threshing, make near its central portion that flows to the sorting body.

Like this, owing to can flow down the guide surface channeling conduct by being arranged at the grain that grain between threshing cylinder and the sorting body flows down guide body, the grain that leaks down by the threshing cylinder threshing is flow near the central portion of sorting body, therefore, even under the many situations of the amount of grain, also can guarantee the efficiency of separation of sorting body well.

(2) in technical scheme 2 described the present invention, grain flows down the plate shape that guide body forms direction extension forwards, backwards, is formed with grain in the above and flows down guide surface, simultaneously, makes this grain flow down the inclined plane of guide surface formation to the central portion side decline inclination of sorting body.

Like this, form simple small-sized structure, therefore, can increase the degree of freedom that the position is set that this grain flows down guide body, can be arranged on simply on the position that needs because grain is flowed down guide body.

(3) in technical scheme 3 described the present invention, a kind of combine is provided, has the threshing portion that harvested paddy stalk is carried out threshing, with sorting portion to carrying out sorting through the grain after this threshing portion threshing, lay the reception net at the lower position that is arranged at the threshing cylinder in the threshing portion, simultaneously, this receives net and form mesh boundary line portion on roughly 2/3rds the position of front and back width, make the width of mesh of the rear portion reception net form adult at the rear that is positioned at this mesh boundary line portion, form the width of mesh that receives the net form adult greater than the front portion in the place ahead that is positioned at this mesh boundary line portion, mesh boundary line portion is configured in the place ahead of the initial end that is arranged at the glume-shell screen on the sorting body, receive the grain that the net form adult leaks down by the entry table reception that is arranged on the sorting body by the front portion, carry out gravity separation by this entry table, simultaneously, utilize the sorting wind that flows towards the top from the below of glume-shell screen from preposition fan, the grain that leaks down by rear portion reception net form adult is carried out the wind sorting.

Like this, can receive the net form adult by the front portion leaks down to entry table simple grain, and simple grain is carried out gravity separation by this entry table, simultaneously, can receive the net form adult by the rear portion, be used to barbed grain be carried out the wind sorting, therefore can improve the efficiency of separation since the sorting wind of the below of glume-shell screen mobile preposition fan towards the top.

Claims (3)

1. a combine has the threshing portion and the sorting portion to carrying out sorting through the grain after this threshing portion threshing that harvested paddy stalk are carried out threshing, it is characterized in that,

Grain flowed down that guide body is provided in the threshing cylinder that is arranged at threshing portion and between the sorting body that is arranged under this disengaging cylinder in the sorting portion, simultaneously, this grain flows down guide body to have grain and flows down guide surface, this grain flow down guide surface to the grain channeling conduct of leaking down through the threshing cylinder threshing, make near its central portion that flows to the sorting body.

2. combine as claimed in claim 1, it is characterized in that grain flows down the plate shape that guide body forms direction extension forwards, backwards, is formed with grain in the above and flows down guide surface, simultaneously, make this grain flow down the inclined plane of guide surface formation to the central portion side decline inclination of sorting body.

3. a combine has the threshing portion and the sorting portion to carrying out sorting through the grain after this threshing portion threshing that harvested paddy stalk are carried out threshing, it is characterized in that,

Lay the reception net at the lower position that is arranged at the threshing cylinder in the threshing portion, simultaneously, this receives net and form mesh boundary line portion on roughly 2/3rds the position of front and back width, make the rear portion at the rear that is positioned at this mesh boundary line portion receive the net form adult width of mesh, form the width of mesh that receives the net form adult greater than the front portion in the place ahead that is positioned at this mesh boundary line portion

Mesh boundary line portion is configured in the place ahead of the initial end that is arranged at the glume-shell screen on the sorting body, receive the grain that the net form adult leaks down by the entry table reception that is arranged on the sorting body by the front portion, carry out gravity separation by this entry table, simultaneously, utilize from the below of glume-shell screen the sorting wind from preposition fan mobile, the grain that leaks down by rear portion reception net form adult is carried out the wind sorting towards the top.

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