JP2000037134A - Normal type combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the maintenance of the cereal grain tank and the threshing part in a normal type combine harvester equipped with the grain tank over the threshing part. SOLUTION: In this combine harvester, a grain tank 8 for storing the threshed cereal grains is arranged over a threshing part 4, and the bottom exclusion auger 13g, of the grain tank 8 is set to the right-most edge of the machine body in the longitudinal direction and the cereal tank 8 is made rotatable in both right and left directions around the auger shaft 140 of the bottom exclusion auger 139.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conventional combine harvester in which cereals such as rice, wheat, beans, etc., harvested in a reaping unit, are all fed into a threshing unit via a feeder house and threshed.

[0002]

In a structure in which a grain tank is provided above the threshing section for the purpose of making the machine compact, the tank is usually fixed and the maintenance work of the grain tank and the threshing section is easy. There was an inconvenience that it could not be performed.

Further, in the conventional structure in which the grain tank is rotated and opened to the outside of the machine, there is a trouble such as removing the transmission belt each time the tank is rotated, so that the tank can be easily rotated. There was an inconvenience.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a grain tank for storing thresh grains above a threshing section, and a bottom discharge auger for grain discharge of the grain tank is disposed in the front-rear direction of the rightmost end of the fuselage. In a very compact body configuration in which a grain tank is provided rotatably around the auger axis of the bottom discharge oat and is equipped with a grain tank above the threshing unit, the grain tank is made easily rotatable. It is intended to make tanks and maintenance work easier, and to make it easier to reduce the weight and rigidity of the aircraft.

Further, an auger shaft of a vertical discharge auger to which a bottom discharge auger is operatively connected and an output shaft of a bevel case are connected via a chain transmission mechanism, and an output shaft of the engine is belt-driven to an input shaft of the bevel case. By connecting via a mechanism, the drive transmission mechanism of the auger is avoided from the radiator and other accessory parts of the engine, so there is no need to remove the belt etc. each time the grain tank rotates, and the grain count is extremely simple with a small number of parts Rotate the tank,
This improves workability such as maintenance and inspection work in grain tanks and threshing units.

[0006] Further, a fryer for charging the grains from the threshing unit is disposed at the left and right opposite ends to the bottom of the grain tank, and the outlet of the fryer is inclined in the front-rear direction. Providing a good rotation of the grain tank by rotating the grain tank without having to remove the parts between the grain cylinder and the like each time, and preventing the grain from leaking from the mouth of the grain cylinder Is what you do.

Further, a lifting cylinder is provided outside a power drive system for transmitting the output of the engine to each drive unit, and a power drive system such as a transmission belt from the engine is brought close to the threshing side plate. An object of the present invention is to reduce the amount of offset from the bearing member to reduce the size and weight of the bearing member.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. Fig. 1 is an overall side view of the combine, Fig. 2
Is a plan view of the same, in which (1) is a machine base equipped with a traveling crawler (2) on a track frame (3), and (4) is a large diameter and a small diameter 2 whose axes are orthogonal to the traveling direction of the body. A threshing section provided with two screw-shaped first and second handling cylinders (5) and (6) and an oscillating sorter (7), and (8) is arranged above the threshing section (4) to provide a threshing cylinder (9). Threshing section (4)
(10) is an upper carry-out auger that is provided on the right side of the fuselage to take out the grains in the grain tank (8), and (11) is disposed behind the grain tank (8) and has an engine ( An engine room in which 12) is provided, and a driving operation in which a driver's seat (14) and a steering handle (15) are provided in a driver's cab (16) and disposed above the front of the threshing unit (4). , (17) are left and right worker stepping steps arranged on both left and right sides of the cab (16), and (18) is equipped with a hydraulic lifting cylinder (19) at the front of the lower part of the threshing unit (4) so that it can be raised and lowered. Reaper

The cutting section (18) is connected to a grain cutting header (20) for taking in uncut grain culm and substantially at the rear center of the header (20) to cut the cut grain culm into a threshing section (4). And a feeder house (21) for feeding to the cereal, and a reel (22) for retrieving uncut stalks, a reciprocating drive type cutting blade (23), and stalk skewer o (24). The feeder house (21) is provided on a header (20), and is disposed below the driver's cab (16) so as to be displaced to the left from the driver's seat (14) in the center of the driver's cab (16). The harvested culm taken into the feeder house (21) is fed to the left side of the threshing unit (4) via a supply chain conveyor (25) provided in the feeder house (21) to perform threshing.

As shown in FIGS. 4 to 6, a handling chamber (26) is formed above the threshing unit (4), and the handling cylinder shafts (27) and (28) perpendicular to the traveling direction are coaxial. The first and second screw-type first and second handle cylinders (5) and (6) of large and small diameters to be supported by the first and second handle cylinders (5) and (6) are provided in the front and rear of the handling chamber (26) so as to be substantially full left and right. A beater (2) for transferring grain stalks between the feed chain conveyor (25) and the feed end of the feed chain conveyor (25).
A beater chamber (31) formed between the rear end of the feeder house (21) and the handling port (30) on the left side of the handling chamber (26) is provided with handle cylinder shafts (27) and (28). The beater shaft (32) of the beater (29) is supported in parallel, and the entire amount of the harvested grain culm taken into the header (20) is transferred from the feeder house (21) to the beater room (31), and the threshing unit ( 4).

The first and second receiving nets (33) and (3) are provided below the first and second handling cylinders (5) and (6) of the threshing unit (4).
4) and a swing sorter (7) below the receiving nets (33) and (34).
A first feed pan (35) located below the receiving nets (33) and (34), a sieve line (36) provided at the rear end of the feed pan (35), and a rear side of the sieve line (36). A swing sorter (7) is provided with a chaff sheave (37), a Glen sheave (38) stretched below a front portion of the chaff sheave (37), and first and second grain plates (39) and (40). The sorting board (7) is configured to swing and drive in the front-rear direction by rotation of the swing drive shaft (41) on the rear end side.

Further, the chaff sheave (37) and the Glen sheave (3) are disposed below the feed pan (35).
8) Karino (42), which feeds the sorting wind in the direction, and No. 1 gutter (43) and No. 1 conveyor (44), which receive the grains from the Glen Sheave (38) and send them to the fryer (9). The second reduct from the second grain plate (40), the second reductor cylinder (45)
2nd gutter (46) and 2nd conveyor (47) to send to
And the 3rd exit (48) facing the rear end of the swing sorter (7)
And the feed pan (35) with the grain of the first gutter (43) in the tank (8) and the second reduced product of the second gutter (46) with the feed pan (35).
Is transmitted to

Further, the sieving line (3) of the swing sorter (7) is used.
6) and the chaff sheave (37) are disposed behind the handle cylinder shaft (28) that is the axis of the second handle cylinder (6), and fall from the first and second receiving nets (33) and (34). Leakage, such as grain and dust, is directly transferred to the first conveyor (4) behind the second handling cylinder (6).
4) It is configured to prevent falling to the part and improve threshing accuracy.

As shown in FIG. 7, the first and second handle cylinder shafts (27) projecting outside the left side plate (4a) of the threshing unit (4).
(28) and the beater shaft (32) are linked to the output shaft (49) of the engine (12), and the second handle barrel shaft (28) is connected to the engine output shaft (49) by the pulleys (50) (5).
1) and directly linked via a belt (52), and the first handle cylinder shaft (27) is connected to the second handle cylinder shaft (28) via pulleys (53) (54) and a belt (55), In addition, a beater shaft (32) is connected to a first pulley shaft (27) by a pulley (5).
6) The gear (29) and the first and second handle cylinders (5) and (6) are linked to each other via the (57) and the belt (58) in a counterclockwise direction (the same direction) in a side view as shown in FIG. )
Is configured to rotate.

Further, the first handling cylinder shaft (27) and the beater shaft (3)
A belt tension type reaping clutch (59) is provided on a belt (58) that is interlocked with 2), and the clutch (59) is disengaged when a jam occurs in the first handling cylinder (5). , The supply of cereal stems from the beater (29) is stopped.

Further, sprockets (61) (6) are attached to a drive shaft (60) of a supply chain conveyor (25), which is a cutting input shaft protruding to the left outside of the feeder house (21).
The beater shaft (32) is interlocked and connected via the chain (2) and the chain (63) to drive the reaper (18) via the conveyor (25) and the drive shaft (60).

Still further, the first and second handling cylinders (5)
(6) A running counter shaft (64) is provided outside the threshing left side plate (4a) below and between the counter shaft (64) and the engine output shaft (49) via pulleys (65) and (66) and a belt (67). ), And pulleys (70) (71) and a belt (72) are attached to an input shaft (69) of a traveling transmission case (68) arranged in front of the machine (1).
The counter shaft (64) is interlockingly connected via the drive shaft so that the traveling crawler (2) is driven by the traveling output of the output shaft (73) of the transmission case (68).

Further, the conveyor shafts (44a) and (47a) of the first and second conveyors (44) and (47) projecting outward from the right side plate (4b) of the threshing unit (4) are connected to pulleys (74) and (7).
5) Via (76) and belt (77), and
The drive shaft (78) of 2) is interlockingly connected to the second handle shaft (28) outside the left side plate (4b) via pulleys (79) (80) and a belt (81), respectively. 1
No. 2 and No. 2 conveyors (44) and (47) are driven, and the swing drive shaft (41) is connected to pulleys (82) (8).
3) and the second conveyor shaft (47) via the belt (84).
The swing sorter (7) is configured to be driven in association with a).

As shown in FIGS. 5, 7 and 8, 2
2nd reduction cylinder (45) interlockingly connected to the number conveyor (47)
To the outer surface of the left threshing plate (4a) in a slanting manner with a front height and a low height, and also leave a space between the left thrust plate (4a) and a fluffing cylinder (9) interlockingly connected to the first conveyor (44). hand,
Grains from the No. 1 conveyor (44) are set up in a grain tank (8) which is set up substantially vertically outside the reduction cylinder (45) and each of the belts (52) and (67) and is arranged above the threshing unit (4). Is configured to be input.

As shown in FIGS. 9 to 13, the threshing unit (4) has first and second cylinders (5) and (6) at the upper portion between the left and right side plates (4a) and (4b), and swings at the lower portion. A sorting board (7) is provided, and the upper threshing width and the lower sorting width are formed to be the same width, and the first and second handling cylinders are left and right side plates (4a) (4b).
Spiral blades (87) and (88) having different spiral directions are wound around cylindrical body portions (85) and (86) having a length substantially equal to the width, and the right and left ends of the body portions (85) and (86) are wound. (87) (8
8) At the non-formed portion, three plate-shaped culm blades (89) and (90) are attached at equal intervals (120 ° intervals) in the circumferential direction.
In the handling cylinder (5), the cereal stalk fed from the handling port (30) is laterally fed to the communication gutter (91) at the right end, and the first handling cylinder is discharged by the drainage wings (89) in the communication gutter (91). The waste culm thrown out from (5) is passed to the second handling drum (6), and the inherited waste culm is laterally fed leftward in the second handling drum (6), and the waste culm at the left lateral feed end is passed. It is configured to discharge the culm behind the mouth (92).

As shown in FIG. 9, the pitch (P2) of the spiral blades (88) of the second handling cylinder (6) is larger than the pitch (P1) of the spiral blades (87) of the first handling cylinder (5). For example, each pitch P1 = 100 mm, P2 = 150
By using millimeters, in the first handling cylinder (5), the residence time of the cereal stalk is made longer to perform a long-hand handling action to promote threshing, while in the second handling cylinder (6), The first and second handling cylinders (5) and (6) are configured to increase the peripheral speed of the handling cylinder (6) so as to reduce unhandled and sting particles.
It is configured to improve the shedding performance due to

In addition, on the non-transport surface side of the spiral blades (87), (88), substantially equal intervals (α1), (α2) (first
Handling cylinder (5) α1 = 45 °, second handling cylinder (6) α2 = 60
In FIG. 12), the toothed teeth (93) and (94) each having a mountain-shaped tip are detachably fixed via bolts (95).
As shown in the figure, the front chevron portion of the toothing (93) of the first handling cylinder (5) has a suddenly rising left-right asymmetrical rising angle (φ1) and a sharply handling tooth surface (93a) and a small rising angle. Clearance angle (φ
2) A large loosely toothed surface (93b) is formed, and the threshing performance can be adjusted to be small or large by mounting the tooth handling (93) upside down. In addition, although the toothing (94) of the second handling cylinder (6) has a trapezoidal shape with a symmetrical tip angle portion, the same toothing (93) as the first handling cylinder (5) may be used.

First and second mesh frames (96) for receiving the receiving nets (33) and (34) of the first and second handling cylinders (5) and (6).
(97) is formed in a substantially semicircular shape, and as shown in FIG.
The mesh frame (9) is located above the gap between the handling cylinder (5) and the second handling cylinder (6).
6) The front and rear horizontal frames (98) for connecting the left and right side plates (4a) and (4b) to enable the (97) to be taken out.
The (99) position regulating pins (100a) and (100b)
The front end sides of the left and right first net frames (96) and the second net frame (97)
And the left and right side plates (4
a) An arc-shaped left mesh frame guide rail (101a) (101b), (102a) (102b) fixed to (4b).
The right and left mesh frame guide rails (101c) and (102c) support the outer peripheral edges of the left and right first and second mesh frames (96) and (97) from below, and the first and second handle cylinders (5) When removing the first and second handling cylinder covers (103) and (104) in (6), each guide rail (101a) (101b) (101)
c) By sliding the mesh frames (96) and (97) upward along the (102a) (102b) and (102c), the mesh frames (96) and (97) are taken out of the machine. ing.

The left and right mesh frame guide rails (101a)
(101b) (101c) ・ (102a) (102b)
(102c) is attached to the left and right side plates (4a) and (4b) via the long hole (105) and the bolt (106), and each of the guide rails (101a) (101b) (101c) (1)
02a) (102b) (102c) Handle cylinder shaft (27)
It is provided so that the mounting position can be adjusted in the radial direction around the center (28) to handle the welding cylinders (5) and (6) and the receiving nets (33) and (34) against welding distortion and variations of the net frames (96) and (97). ) Is configured to be adjusted and held constant.

Further, as shown in FIG. 12, the threshing front side plate (4c), which is the front wall of the handling room (26), and the first handling cylinder cover (1).
03) is formed in a circular arc with a constant radius (R), and the lower part of the threshing front side plate (4c) from the upper gap (a) between the front side plate (103c) and the first handling cylinder (5) is formed. Receiving network (3
A gap (107) in front of the handling chamber, which gradually narrows to the gap (b) between the third handling cylinder (3) and the first handling cylinder (5), is formed so as to prevent clogging of the culm during threshing. .

Further, a part of the receiving nets (33) and (34) inside the threshing right side plate (4b) is cut off to a certain width to open a communication port (108), and a communication gutter (91) having a flat bottom surface. Is formed in the communication port (108) to communicate the first handling chamber (26a) having the first handling cylinder (5) with the second handling chamber (26b) having the second handling cylinder (6). A smooth guide surface (91a) of the communication gutter (91) in a front-to-back and rear-to-height manner at an angle in a direction tangential to the first receiving net (33) and below the second handling cylinder shaft (28).
Is tilted, and the drainage culm which has been laterally fed to the right end of the first handling chamber (26a) by the first handling cylinder (5) is received by the communication gutter (91) into the rear second handling chamber (26b). It is configured to be carried in continuously.

As shown in FIGS. 19 and 20, the communication gutter (91) is divided at the front and rear ends, and is respectively provided between the first and second receiving nets (33) and (34) and the communication gutter (91). The first and second guide gutters (109) and (110) are provided. The first guide gutter (109) is fixed to the first net frame (96), and the guide surface (91a) of the communication gutter (91) is provided. And the guide surface (109) at the same inclination as that of
a), the second guide gutter (110) is fixed to the second net frame (97), and the guide surface (91) of the communication gutter (91) is provided.
(a), a guide surface (110a) is provided at a predetermined height (H2) lower than the guide surface (91a) and a communication gutter from the first handling chamber (26a) to the second handling chamber (26b). 91)
To allow smooth transfer of the culm through the stalk, and to enable easy removal of only the net frames (96) and (97) without removing the communication gutter (91). Make up.

The left side wall (1) of the communication port (108)
08a), the first and second mesh frames (96) and (97).
And the communication left side plate (96a) (97a) of the communication gutter (91)
(111) is also provided with steps (h1) and (h2).
The communication gutter (91) from the side plate (96a) of the second net frame (96)
In the state where the side plate (111) of the second net frame (97) is retracted to the left side of the constant step (h2) from the side plate (111) of the communication gutter (91) to the left side of the constant step (h1). The communication gutter (91) is provided so that the width of the communication gutter (91) becomes wider toward the drainage direction.
At the time of inheriting and transferring the grain culm to the second handling room (26b) via 1), it is configured such that the culm does not get caught on these side plates (96a), (111), and (97a) and the smooth carry-in is performed. I have.

As shown in FIGS. 10, 12, 13, and 14, the first and second handle cylinder covers (103) and (104) above the first and second handle chambers (26a) and (26b). The three sets of first and second dust valves (112) and (113) are provided on the back surface for guiding the culms in the right and left directions, respectively, and each of the three dust valves (112a) and (112b) is provided. (112
c), (113a), (113b) and (113c) are formed in substantially the same shape, respectively, and as shown in phantom lines in FIG. 30) and the first dust valve (112a) (113a) on the left and right sides above the communication port (108),
And the third dust valve (112b) (112c) / (113
b) It is provided so that the angle can be adjusted so that it can be opened (large feed) from (113c), and the take-up property on the inlet side of the first and second handling cylinders (5) and (6) is improved. .

Each dust valve (112a) (112b) (11
2c), (113a), (113b), and (113c) are provided so as to be rotatable around the center valve shafts (114) and (115). The first dust feed valves (112a) and (113a) are different from the valve shaft ( Handle the inlet side valve angle adjusting levers (116) and (117) to be integrally connected via the shell (114).
(104) The adjustment lever (11)
6) The first dust valve (112a) (113)
While adjusting the inclination angle of a), the valve shaft (114) is attached to the second dust valve (112b) on the first cylinder (5) side and the third dust valve (113c) on the second cylinder (6) side. )), The outlet side valve angle adjusting levers (118) and (119) integrally connected to each other are disposed outside the upper surfaces of the handle drum covers (103) and (104).
The second and third dust feed valves (112b) on the first handling cylinder (5) side
(112c) and between the second and third dust feed valves (113b) and (113c) on the side of the second cylinder (6).
3) The valve link (12) to be integrally connected in (104)
0) (121) is provided, and the outlet-side valve angle adjusting lever (1) is provided.
18) The second and third dust feed valves (12b) are operated by the operation (119).
(112c), (113b), and (113c) are configured to be adjusted to substantially the same appropriate inclination angle.

The adjustment lever (118) (1
19) The positioning rising pieces (118a) (119a)
Is bent to form a gate-shaped lever positioning member (122) (12) fixedly mounted on the handling drum cover (103) (104).
The rising pieces (118a) and (119a) are engaged with the positioning notches (122a) and (123a) of 3) to form the second
And the third dust valve (112b) (112c) / (113
b) It is configured to fix the position at the appropriate valve angle in (113c).

As shown in FIGS. 4 and 15, a feed pan (35) of an oscillating sorter (7) is disposed below the first and second handling cylinders (5) and (6), and the first and second handling cylinders (5) and (6) are arranged. 2nd handling cylinder (5) (6)
The grains falling from the receiving nets (33) and (34) are received by the feed pan (35), and the first conveyor (44) is arranged behind the second handling cylinder (6), and the feed pan (35) is placed behind the feed pan (35). The sieve line (36) and the chaff sheave (37) which are continuously provided are arranged behind the second handle cylinder shaft (28), so that grains and dust from the receiving net (6) of the second handle cylinder (6) are removed. The structure is such that the leaked material is prevented from directly falling on the first gutter (43), and the threshing accuracy is improved.

As shown in FIGS. 4, 9, 10, and 11,
At the position near the rear of the second receiving net (34) excluding the culm opening (92), a grain drop partition plate (124) for dropping grains onto the swinging sorter (7) is arranged. The partition plate (124) is provided vertically below a threshing top plate (124a) disposed at a position substantially at the same height as the handle cylinder shaft (28) behind the second handle cylinder (6). Leaks the receiving network (34),
The grains scattered toward the rear third opening (48) are dropped on the swinging sorter (7) by the partition plate (124),
It is configured to reduce grain loss and improve sorting accuracy.

As shown in FIGS. 9, 16 and 17, a middle side plate (125) serving as a right side plate of a beater chamber (31) is provided forwardly of the front side plate (4c) of the threshing unit (4) substantially in front of the left and right centers. The left and right ends of the beater shaft (32) are rotatably supported by the left side plate (4a) and the middle side plate (125).
Left and right rotation fulcrum shaft cases (127a) (127) for mounting both ends of the drive shaft (60) of the supply chain conveyor (25)
b) is rotatably supported via the metal (130) on the case receiving members (129a) (129b) of the left and right mounting frames (128a) (128b) for cutting the left and middle side plates (4a) (125). Thus, a mowing part (18) is provided in front of the threshing part (4) so as to be able to move up and down around the drive shaft (60).

The left and right widths of the feeder house (21) and the beater chamber (31) are substantially the same, and the threshing unit (4)
The width of the mounting frame (128a) (128b) is formed at approximately half the width of the
The upper and lower left and right connecting frames (131) and the pipe (132) on the front side are connected and supported to improve the support strength and rigidity of the mowing part (4).

As shown in FIGS. 17 and 18, an extra space (133) formed between the right outer side of the middle plate (125) and the front side of the threshing unit (4) has a lifting cylinder (19).
Hydraulic oil tank (13
4) and a hydraulic valve (135) interposed in a hydraulic circuit between the hydraulic device and the tank (134). The tank (29) in the surplus space (133) is located substantially to the right of the beater (29). 134) and a valve (135) above the tank (134) to provide an extra space (133).
Tank (134) and valve (135) that make effective use of
And the hydraulic circuit connecting between the tank (134) and the valve (135) is shortened.

Further, as shown in FIGS. 16 and 18, the threshing left and right side plates (4) below the beater (29) and the first handling cylinder (5) are provided.
a) (4b), a fuel tank (137) for storing engine fuel is provided in a surplus space (136) between the karino (42) and the transmission case (68), and the left and right side plates (4a) (4b) ) A tank (137) is provided to substantially fill the gap, and the cab (1) is provided outside the right side plate (4b).
6) By disposing an engine filler port (138) at a lower position below, to lower the center of gravity of the aircraft, to stabilize the left-right balance of the aircraft regardless of changes in the amount of stored fuel, and to facilitate refueling. It is composed.

As shown in FIGS. 5, 8 and 16, the grain tank (8) is disposed above the threshing unit (4), and the bottom discharge auger (139) for taking out the grains in the grain tank (8). )
Is disposed in the front-rear direction on the right outside of the threshing unit (4), and a grain tank (8) is rotatably provided on the right outside on the auger shaft (140) of the bottom discharge auger (139), so that the grain is The upper part of the threshing unit (4) can be opened when the tank (8) is turned to the right.

The front and rear bearing cases (141) and (142) supporting the pivot point of the grain tank (8) are attached to the horizontal right extending ends of the left and right connecting frames (131) and (143) before and after the threshing unit (4). At the same time, these frames (13
1) The right extending end of (143) and the machine frame below this machine are connected by front and rear reinforcing members (144) and (145) inclined in front view to reduce the weight of the tank support frame structure and improve the rigidity. It is configured as shown. Reference numeral (146) denotes a supporting frame provided on the left bottom portion of the grain tank (8), and when the grain tank (8) is stored, the regulating pin (147) at the lower end of the frame (146) is received by the receiving member (131) of the frame (131). 148) and the like to maintain the position.

As shown in FIGS. 5, 6, 21 and 22,
The bottom discharge auger (139) is provided in the engine room (1).
1) Linkedly connected to the vertical discharge auger (150) via the lower relay discharge auger (149), and connect the vertical discharge auger (150) to the right output shaft (49) of the engine (12) via the bevel case (151). The upper and lower discharge augers (1) connected to the auger (150) by being linked and connected to the vertical auger (150) by driving the engine output.
0) and (139). The input shaft (152) of the bevel case (151) and the right output shaft (49) of the engine (12) are connected to the pulleys (153) (154) and the belt (155). And the vertical output shaft (156) of the bevel case (151) and the auger shaft (157) of the vertical discharge auger (150) are connected to the sprocket (1).
58) By interlocking connection via (159) and chain (160), rotation of the grain tank (8) around the auger shaft (140) can be performed without removing the transmission belt each time. In addition, the number of these transmission parts is reduced to simplify the configuration and reduce the cost.

The bevel case (121) is located behind the radiator (161) and the oil cooler (162) provided on the right side of the engine (12), and the radiator (161) and the oil cooler (162) are arranged. While the engine output is transmitted to the avoided vertical discharge auger (150), as shown in FIGS.
A battery (163) is arranged in a surplus space between the first and second conveyors (47) so that the battery (163) can be easily connected to the engine (12) and compactly assembled.

As shown in FIGS. 5, 6, and 9, a frying cylinder (9) for charging the grains from the first conveyor (44) into the grain tank (8) is different from the bottom discharge auger (139). At the left outer position of the threshing unit (4) on the opposite side, the belt is disposed outside the belts (52) and (67) which are the power drive system of the engine (2), and the belts (52) and (67) are disposed on the left threshing plate. (4
a), the bearing (16) of the pulley (51)
The bearing (164) is reduced by reducing the offset amount from (4).
It is designed to reduce the size and weight of the device.

As shown in FIG. 23, the grain outlet (165) of the fryer (9) and the rear side plate portion (8a) of the grain tank (8) facing the outlet (165) are The bottom plate (165b) extends forward from the top plate (165a) of the spout (165), and the bottom plate (165b) is inserted into the grain tank (8). Mouth (16
6) Position a certain dimension (T) above the lower edge, and
A sealing member (168) attached around the outside of the container (65) via a mounting plate (167) is inserted into the inlet (166) of the tank (8).
The spout (165) and the input port (16)
6) The space is always sealed so that the grain can be put into a good tank (8) with no grain leakage, and it is not necessary to remove parts each time the tank (8) is rotated. 165), it is configured to perform good rotation without grain leakage.

The present invention is configured as described above,
In a normal combine equipped with two screw-shaped first and second handling cylinders (5) and (6) for threshing a harvested grain culm, between a feed terminal end of a feeder house (21) and a first handling cylinder (5). A beater (29) for inheriting the grain culm was arranged, and an attachment frame for the right side surface of the beater room (31) and the reaping portion was formed by the middle plate (125) provided substantially at the center of the threshing unit (4). As a result, the feeder house (21) and the first cylinder (5)
Even if the distance between them is large, the beater (29) prevents grain clogging on the way and improves the uptake of grains in the threshing unit (4), and also connects the middle side plate (125) to the beater room (31). It can be effectively used for the right side surface and the mounting frame of the mowing part (18), and can reduce the number of parts and the weight.

Further, the hydraulic oil tank (134) of various hydraulic devices is disposed outside the right side of the beater chamber (31), so that the hydraulic oil tank (134) can be compactly disposed in the extra space (133) on the right side of the beater. Can be equipped.

Further, a hydraulic valve (135) connected to the hydraulic oil tank (134) by piping is connected to the hydraulic oil tank (13).
4), the hydraulic valve (135) together with the hydraulic oil tank (134) can be compactly mounted in the extra space (133) on the right side of the beater, and the hydraulic oil tank (134) ) And the hydraulic valve (135) can be shortened to simplify the structure.

Further, since a clutch (59) is provided on a belt (58) for transmitting a driving force from the first cylinder (5) to the beater (29), for example, the first cylinder (5) or the like can be used. Even in the event of a grain jam,
By disengaging the clutch (59), the supply of grain to the first handling cylinder (5) is stopped, and prompt return can be promoted.

Further, by interlocking the beater (29) and the drive shaft (60) disposed in front of the beater (29) via a chain (63), the center distance between the beater (29) and the drive shaft (60) is increased. Even if is short, the chain (63) using a small-diameter sprocket or the like ensures that the necessary driving force is transmitted to the chain conveyor (25) and the cutting unit (18),
The mowing performance can be stably maintained.

Further, a beater (29) for transferring the grain stalk is provided between the feed end of the feeder house (21) and the first handling cylinder (5).
And the fuel tank (137) is disposed below the beater (29) and the first handling cylinder (5) and approximately in the center between the left and right threshing side plates (4a) and (4b). Even if the amount of stored fuel in the parentheses increases or decreases, without being affected by this, the center of gravity of the aircraft is lowered to stabilize the left-right balance of the aircraft, and the refueling port (138) is set at a low position to perform refueling work. It is possible to achieve simplification.

Further, in a normal combine having two screw-shaped first and second handling cylinders (5) and (6) orthogonal to the traveling direction, the spiral blade (87) on the outer periphery of the first handling cylinder (5) is used. ), The pitch (P2) of the spiral blades (88) on the outer periphery of the second handling cylinder (6) is made larger than the pitch (P1), so that the first handling cylinder (5) performs a long-time handling operation. ,
In addition to threshing more grains, the second handling cylinder (6) increases peripheral speed to reduce unhandled and sting grains,
Threshing performance can be improved.

Further, the dust sending valves (112a) and (112) having substantially the same shape and arranged above the handling chamber (26) of the handling cylinders (5) and (6)
b) (112c), (113a), (113b), (113)
c) is provided so that the valve angle can be adjusted by a separate operation between the inlet side of the handling chamber and the rest, so that the dust feeding valves (112a) and (113a) are opened at the intake of the handling cylinders (5) and (6). Side (large feed) to eliminate the return of grain, otherwise the dust valve (112b) (112c) · (113b) (113c)
Can be set to the closed side (small feed) to perform appropriate threshing work without leaving unhandled portions.

Further, a communication gutter (91) communicating between the handling chambers (26a) and (26b) of the first and second handling cylinders (5) and (6).
The front and rear ends are divided into guide gutters (109) and (110) of the first and second handling cylinders (5) and (6) to form the first and second handling cylinders.
The net frame (9) of the receiving nets (33) and (34) of the handling cylinders (5) and (6)
6) Since the guide gutters (109) and (110) are integrally provided in the (97), the receiving nets (33) and (34) and the net frame are kept while the communication gutter (91) remains in the handling room (26). (96)
(97) to enable easy unloading of the receiving network (3
3) It is possible to improve the efficiency of maintenance inspection work and the like by attaching and detaching (34).

Further, the communication gutter (91) is arranged within the width of the handling chamber (26) in which the first and second handling cylinders (5) and (6) are provided, so that the communication gutter (91) is moved to the threshing unit. (4) It is possible to reduce the size of the combine body by incorporating it in a compact manner.

Further, the guide gutter (10) of the first handling cylinder (5)
9) ・ Communication gutter (91) ・ Guidance gutter (11) for second handling cylinder (6)
By providing the heads (steps) (H1) and (H2) in the order of (0), even in a combined structure in which a plurality of gutters (109), (91), and (110) are connected, the flow of the culm is not obstructed. The culm is smoothly moved on the gutters (109), (91) and (110), and is moved from the first cylinder (5) to the second cylinder (6).
It can improve the succession of the culm to the culm.

Further, the guide gutter (109) of the first handling cylinder (5).
・ Communication gutter (91) ・ Guidance gutter (110) for second handling cylinder (6)
The steps (h1) and (h2) for increasing the width are provided on these side walls (108a) in this order, so that each gutter (10
9) Each gutter (109) when the culm moves on (91) (110)
(91) The culm can be smoothly guided by the side wall (108a) of (110) without obstructing the flow of the culm, and the succession of the culm can be improved.

Further, frame guide rails (101a) (101b) (101c) for supporting the net frames (96) (97).
(102a) (102b) (102c) are provided on the threshing side plates (4a) (4b), and the guide rails (10
1a) (101b) (101c) / (102a) (10
2b) By providing the (102c) so as to be movable in the center radial direction of the handling cylinders (5) and (6), the mesh frame (96)
The guide rails (101a), (101b) and (10) can be used even when it is necessary to adjust the gap between the handling cylinders (5) and (6) and the receiving nets (33) and (34) due to the welding distortion and variation of (97).
By adjusting the movements of 1c), (102a), (102b) and (102c), the gap can be easily and appropriately maintained, and the threshing accuracy can be stably maintained.

Further, the inner surfaces of the handling chamber (26) and the handling cylinder cover (104) in front of the first handling cylinder (5) are formed in an arc shape, and the handling cylinder cover (104) and the handling chamber (26) are formed. )
The gap (107) between the inner surface of the cylinder and the handling cylinder (5) is received by the receiving net (3).
By gradually narrowing the grain to 3), the first handling cylinder (5) and the receiving net (33) can be smoothly inserted without clogging the grain fed from the feeder house (21) to the first handling cylinder (5). It can be sent in the middle to stably maintain threshing performance.

Further, the feed pan (35) of the swing sorting machine (7) is provided below the first and second handling cylinders (5) and (6), and from the handling cylinder axis of the second handling cylinder (6). Swinging sorter behind (7)
The second chaff sheave (37)
Leakage such as grains and dust from the handling cylinder (6)
The first gutter (4) is prevented from falling onto the gutter (43).
It is possible to improve the sorting accuracy of the grain taken out in 3).

Further, a partition plate (12) for guiding the fall of kernels is provided behind a receiving net (34) provided below the second handling cylinder (6).
By providing 4), it is possible to reliably drop onto the oscillating sorter (7) with a single partition plate having a simple configuration without causing the leakage from the second handling cylinder (6) to fly outside the machine. Thus, grain loss can be reduced and sorting accuracy can be improved.

Further, the handle shaft (2) of the second handle cylinder (6)
8) and the output shaft (49) of the engine (12) are directly linked to each other via the belt (52),
The driving force from the engine (12) is transmitted to the second handling cylinder (6) by a minimum number of belts, and the installation space width of the belt (52) required to drive the second handling cylinder (6) is reduced,
It is possible to reduce the size of the machine by reducing the width of the machine.

Further, a grain tank (8) for storing threshing grains
Above the threshing unit (4), the bottom discharge auger (139) of the grain tank (8) is disposed in the front-rear direction at the rightmost end of the fuselage, and the auger shaft (14) of the bottom discharge auger (139) is provided.
Since the grain tank (8) is rotatable left and right around the center (0), the grain tank (8) can be easily installed in an extremely compact machine configuration in which the grain tank (8) is mounted above the threshing unit (4). This makes it possible to easily perform the maintenance and inspection work of the grain tank (8) and the threshing unit (4) by making it possible to perform a simple rotation, and it is also possible to easily reduce the weight and rigidity of the machine body.

Further, the auger shaft (157) of the vertical discharge auger (150) interlockingly connected to the bottom discharge auger (139).
And the output shaft (156) of the bevel case (151) are connected via a chain (160), and the output shaft (4) of the engine (12) is connected to the input shaft of the bevel case (151).
9) is connected via the belt (155), so that the drive transmission mechanism of the auger (150) such as the belt (155) and the chain (160) can be avoided from accessories of the engine (21) such as the radiator (161). Thus, it is not necessary to remove a belt or the like each time the grain tank (8) is rotated, and the grain tank (8) can be easily rotated with a very simple configuration with a small number of parts and a grain tank (8) The workability such as maintenance and inspection work in the threshing unit (4) can be improved.

Further, a frying cylinder (9) for charging the grains from the threshing unit (4) is disposed at the left and right end opposite to the bottom discharge auger (139) of the grain tank (8). When the grain tank (8) is rotated by raising the grain tank (8) by tilting the spout (165) of the grain cylinder (9) in the front-back direction,
A good rotation of the grain tank (8) without the hassle of having to remove parts and the like between each time, and preventing the grain from leaking from the spout (165) of the fryer (9). Can be done.

Further, by disposing the hoisting cylinder (9) outside the power drive system such as the belts (52) and (67) for transmitting the output of the engine (12) to each drive unit, the transmission belt (52) is provided. ) (67), the power drive system from the engine is brought close to the threshing side plate (4a), and these belts (52)
Bearing (1) of pulley (51) (66) supporting (67)
64) The amount of offset from the member can be reduced, and the size and weight of the bearing (164) member can be reduced.

[0065]

As is apparent from the above embodiments, the present invention provides a cereal tank (8) for storing threshing grains by a threshing unit (4).
Prepared above, the bottom discharge auger (13) of the grain tank (8)
9) is disposed in the front-rear direction of the rightmost end of the fuselage, and the grain tank (8) is provided so as to be rotatable left and right around the auger shaft (140) of the bottom discharge auger (139). (4) Maintenance work of the grain tank (8) and the threshing unit (4) by enabling the grain tank (8) to easily rotate in an extremely compact body configuration equipped with a grain tank (8) above. In this case, the weight and rigidity of the airframe can be easily increased.

The auger shaft (157) of the vertical discharge auger (150) interlockingly connected to the bottom discharge auger (139).
And the output shaft (156) of the bevel case (151) are connected via a chain (160) transmission mechanism, and the output shaft (49) of the engine (12) is connected to the input shaft of the bevel case (151) by a belt (155). ) Since it is connected via a transmission mechanism, the drive transmission mechanism of the auger (150) can be avoided from the accessory parts of the engine (12) such as the radiator (161), and each time the grain tank (8) rotates, The grain tank (8) is rotated with a very simple structure without removing belts and the number of parts is small, improving workability such as maintenance and inspection work in the grain tank (8) and threshing unit (4). That can be done.

Further, a frying cylinder (9) for charging the grains from the threshing unit (4) is disposed at the left and right opposite ends to the bottom discharge auger (139) of the grain tank (8). Since the outlet (165) of the cylinder (9) is provided to be inclined in the front-rear direction, it is troublesome to remove parts and the like between the grain tank (8) and the like at the time of rotation of the grain tank (8). In addition, the grain tank (8) can be favorably rotated while preventing the grain from leaking from the spout (165) of the fryer cylinder (9).

Further, since the fryer cylinder (9) is provided outside the power drive system (52) (67) for transmitting the output of the engine (12) to each drive unit, an engine such as a transmission belt is provided. The power drive systems (52) and (67) are brought closer to the threshing side plate to reduce the amount of offset of the drive systems (52) and (67) from the bearing (164) member. It is possible to reduce the size and weight of the member.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is an overall plan view of the combine.

FIG. 3 is an overall front view of the combine.

FIG. 4 is a sectional side view of a threshing unit.

FIG. 5 is a sectional plan view of a threshing unit.

FIG. 6 is a sectional plan view of a threshing unit.

FIG. 7 is an explanatory left side view of the threshing drive system.

FIG. 8 is an explanatory front view of a threshing unit.

FIG. 9 is an explanatory plan view of the handling body portion.

FIG. 10 is an explanatory side view of the handling body portion.

FIG. 11 is an explanatory side view of a communication gutter.

FIG. 12 is an explanatory side view of a first handling body portion.

FIG. 13 is an explanatory front view of the first handling body portion.

FIG. 14 is an explanatory plan view of a dust valve.

FIG. 15 is an explanatory view of a swing sorting board.

FIG. 16 is an explanatory right side view of the threshing unit.

FIG. 17 is an explanatory plan view of a beater unit.

FIG. 18 is an explanatory front view of a beater unit.

FIG. 19 is an explanatory diagram of a communication gutter.

FIG. 20 is an explanatory diagram of a communication gutter side plate portion.

FIG. 21 is a drive explanatory diagram of a vertical discharge auger.

FIG. 22 is an explanatory diagram of a bevel case portion.

FIG. 23 is an explanatory diagram of a mouthpiece of a fried grain.

FIG. 24 is an explanatory diagram showing a detached state of the receiving network.

[Explanation of symbols]

 (4) Threshing unit (8) Grain tank (9) Frying cylinder (12) Engine (49) Output shaft (52) (67) Belt (power drive system) (139) Bottom discharge auger (140) Auger shaft (150) ) Vertical discharge auger (151) Bevel case (156) Output shaft (157) Auger shaft (160) Chain

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shigeki Murata 1-32 Chayacho, Kita-ku, Osaka-shi Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Junichi Masano 1-32 Chayacho, Kita-ku, Osaka-shi Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Tomoyoshi Hirose 1-32 Chayacho, Kita-ku, Osaka City Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Koichi Kajihara 1-32, Chayacho, Kita-ku, Osaka Yanmar Agricultural Machinery (72) Inventor Munenori Miyamoto 1-32 Chaya-cho, Kita-ku, Osaka-shi Yanmar Agricultural Machinery Co., Ltd. F-term (reference) 2B396 JA04 JC08 KA02 KC05 KE02 KE06 KE07 LA07 LE02 LE03 LE18 LG12 LL05 LL08 LL13 LL14 LL17 LN02 LN07 LN12 LP03 LP08 LP12 LP17 LR02 LR08 LR13 LR19 MC01 MC07 MC12 ME06 ME09 MG05 MG07

Claims (4)

[Claims] 1. A grain tank for storing threshing grains is provided above a threshing unit, and a grain discharging bottom discharge auger of the grain tank is disposed in the front-rear direction of the rightmost end of the fuselage. A normal combine, characterized in that a grain tank is provided rotatable left and right. 2. An auger shaft of a vertical discharge auger to which a bottom discharge auger is interlocked and an output shaft of a bevel case are connected via a chain transmission mechanism, and an output shaft of the engine is belt-driven to an input shaft of the bevel case. The ordinary combine according to claim 1, wherein the combine is connected via a mechanism. 3. A fryer for feeding grains from a threshing unit is disposed at the left and right opposite ends of the bottom of a grain tank, and the outlet of the fryer is inclined in the front-rear direction. The ordinary combine according to claim 1, wherein the combine is provided. 4. The ordinary combine according to claim 3, wherein a fryer is disposed outside a power drive system for transmitting the output of the engine to each drive unit.