TW201401999A - Combined harvester - Google Patents

Abstract

The present invention provides a combined harvester capable of optimizing the speed of feeding grain culms to a threshing device. The combined harvester is configured as the following structure: a hydraulic stepless transmission device (10) is disposed for driving a feeding chain (12B) instead of a driving device (2) and a harvesting device (4); the front side of the threshing device (3) is configured with a secondary shaft (71) having a transverse machine body; power is transmitted from the output shaft (70) of an engine (62) to the machine body interior part of the secondary shaft (71), and the power is then transmitted from the machine body outer part of the secondary shaft (71) to the input shaft (10A) of the hydraulic stepless transmission device (10). Further, also made is a structure for power transmission from the secondary shaft (71) to the threshing device, and a threshing clutch (90A) is disposed for power transmission connection and disconnection from the output shaft (70) of the engine (62) to the secondary shaft (71).

Description

Combine harvester

The present invention relates to a combine that includes a supply chain for supplying grain stalks harvested by a harvesting device to a threshing device.

In the past, in order to simplify the transmission mechanism of the combine harvester and to facilitate assembly thereof, a transmission mechanism has been proposed in which a branch is used to transmit the rotation of the engine to the traveling path of the traveling device, and a transmission path to the harvesting device and the threshing device. A transmission mechanism provided in a manner (Patent Document 1); a transmission mechanism that is provided to transmit a rotation of the engine to a transmission path of the traveling device and the harvesting device, and a transmission path that is transmitted to the threshing device (Patent Document 2).

Prior art literature

Patent literature

Patent Document 1: Japanese Patent Laid-Open No. Hei 5-199812

Patent Document 2: Japanese Patent Laid-Open No. Hei 11-253039

However, since the transmission mechanism of Patent Document 1 outputs the rotation of the supply chain that supplies the grain stalk to the harvesting device and the threshing device from the common hydraulic stepless transmission, the supply chain cannot be independently set for the driving speed of the harvesting device. Drive speed, there is no way to move the grain stalk to the threshing device The problem of proper supply speed. In addition, since the rotational speed of the hydraulic stepless transmission is increased or decreased and protruded toward the inside of the output shaft of the gearbox of the supply chain, there is a change in the number of components from the gearbox to the transmission mechanism of the supply chain. There are many problems such as space saving of setting space.

Further, since the transmission mechanism of Patent Document 2 is transmitted from the screening unit of the threshing apparatus to the supply chain via the stepless transmission, there is a problem that the transmission efficiency of the supply chain is low.

Therefore, the main object of the present invention is to solve this problem.

The present invention which solves the above problems is as follows.

The invention of claim 1 is a combine harvester having a harvesting device 4 at a front portion of a body having a traveling device 2, a threshing device 3 at a rear of the harvesting device 4, and a transfer device on the left and right sides of the threshing device 3 The grain stalks harvested by the harvesting device 4 are supplied to the supply chain 12B of the threshing apparatus 3, and the combine is characterized in that it is provided to drive the supply chain 12B without driving the traveling device 2 and the harvesting device 4 The hydraulic stepless speed change device 10 is provided with a counter shaft 71 in the left-right direction of the machine body on the front side of the threshing apparatus 3, and transmits power from the output shaft 70 of the engine 62 to the inner side portion of the sub-shaft 71, from the sub-shaft 71. The outer side of the body transmits power to the input shaft 10A of the hydraulic stepless transmission 10.

The invention of claim 2, wherein the combine harvester according to claim 1 is configured to transmit power from the counter shaft 71 to the threshing device 3, and to provide the structure. The threshing clutch 90A that connects and disconnects the power from the output shaft 70 of the engine 62 to the counter shaft 71 is connected.

According to the invention of claim 3, the combine harvester according to claim 2 is configured to transmit power from the inner side of the body of the countershaft 71 to the processing cylinder 55 provided in the threshing apparatus 3, from the countershaft. The outer side portion of the body of the 71 transmits power to the screening portion 51 provided on the threshing device 3.

The invention of claim 3, wherein the counter shaft 71 and the hydraulic stepless transmission 10 are supported by the front wall 50A of the threshing apparatus 3.

The invention of claim 3, wherein the combiner according to claim 4 is provided with a harvesting support table 35 for supporting the harvesting device 4 at a front portion of the body, and the harvesting support table 35 and the threshing device 3 are coupled by a support frame 11B. The front wall 50A supports the hydraulic stepless transmission 10 on the support frame 11B.

The invention according to claim 5, wherein the gearbox 68 including the second output shaft 68B for driving the supply chain 12B is attached to the right side portion of the support frame 11B, and the hydraulic type is The stepless speed change device 10 is attached to the left side portion of the above-described support frame 11B.

According to a seventh aspect of the invention, in the third aspect of the invention, the combination of the upper and lower fixed shafts 35B rotatably supports the supply chain 12B to the outside of the machine body, and the supply chain 12B is wound around the supply chain. A coupling that connects and disconnects the second output shaft 68B and the drive sprocket 17A is disposed between the drive sprocket 17A of 12B and the second output shaft 68B. 68C, when the supply chain 12B is rotated to the outside of the machine body, the second output shaft 68B is separated from the drive sprocket 17A, and when the supply chain 12B is rotated toward the inside of the machine body, the second The output shaft 68B is coupled to the drive sprocket 17A.

The combine according to any one of claims 1 to 7, further comprising a control device 85 capable of performing a supply chain transport speed VF and harvesting of the supply chain 12B The harvesting and conveying speed VH of the device 4 is synchronized, and the harvesting and threshing mode for shifting the hydraulic stepless transmission 10 and the manual mode for maintaining the supply chain conveying speed VF at a predetermined conveying speed.

According to a third aspect of the invention, the control device (85), in the harvesting and threshing mode, when the harvesting and transporting speed VH is equal to or greater than a preset first set value VH1, The ratio of the amount of change in the supply chain transport speed VF to the amount of change in the harvesting transport speed VH is set to be larger than the case where the harvesting transport speed VH is lower than the first set value VH1.

According to a third aspect of the invention, the control device 85, in the harvesting and threshing mode, the feed chain transport speed VF is a harvest transport speed VH higher than the first set value VH1. When the second set value VH2 or more is set in advance, the supply chain transport speed VF is maintained at a predetermined third set value VF2.

The effects of the present invention are as follows.

According to the invention of claim 1, the supply chain is driven by the hydraulic stepless transmission 10 that does not drive the traveling device 2 and the harvesting device 4. Since 12B, the driving speed of the supply chain 12B can be set independently of the driving speed of the harvesting device 4, and an appropriate amount of harvested grain stalk can be supplied to the threshing apparatus 3 by the supply chain 12B.

According to the invention of the second aspect of the invention, in addition to the effects of the invention described in the first aspect, the threshing clutch 90A that connects and disconnects the transmission of the power from the output shaft 70 of the engine 62 to the counter shaft 71 is provided. The transfer of the power to the threshing apparatus 3 and the hydraulic stepless speed change device 10 is interrupted by the threshing clutch 90A.

According to the invention of claim 3, in addition to the effects of the invention described in claim 2, the power is transmitted from the inner side of the body of the countershaft 71 to the processing cylinder 55, and the outer side of the main body of the countershaft 71 is oriented. Since the screening unit 51 and the hydraulic stepless transmission 10 transmit power, the transmission structure of the threshing apparatus 3 can be simplified, and the size of the combine harvester can be reduced.

According to the invention of claim 4, in addition to the effects of the invention described in claim 3, the sub-shaft 71 and the hydraulic stepless transmission 10 are supported by the front wall 50A of the threshing apparatus 3, and the counter shaft 71 can be prevented. The deformation and durability are improved, and the transmission efficiency can be improved.

According to the invention of claim 5, in addition to the effects of the invention described in claim 4, the hydraulic stepless transmission 10 can be supported by the support frame 11B that connects the harvesting support 5 and the front wall 50A of the threshing apparatus 3 .

According to the invention of claim 6, in addition to the effects of the invention described in claim 5, the gearbox 68 including the second output shaft 68B for driving the supply chain 12B and the hydraulic stepless transmission 10 can be respectively mounted. They are mounted on the left and right sides of the support frame 11B and supported.

According to the invention of claim 7, in addition to the effects of the invention described in the above claim 6, the second output shaft 68B and the drive sprocket are provided in the case where the supply chain 12B is rotated to the outside of the machine body. 17A is separated, and when the supply chain 12B is rotated toward the inside of the machine body, the second output shaft 68B is connected to the drive sprocket 17A. Therefore, power is not transmitted to the supply chain 12B during maintenance and inspection of the supply chain 12B. It can improve the safety of maintenance and repair work.

According to the invention of claim 8, in addition to the effects of the invention described in any one of the above claims 1 to 7, the supply chain transport speed VF is synchronized with the harvesting transport speed VH in the harvesting and threshing mode. In the mode, the supply chain transport speed VF can be maintained at a predetermined transport speed.

According to the invention of claim 9, in addition to the effect of the invention described in the claim 8, when the harvesting and transporting speed VH is equal to or greater than a predetermined first set value VH1, the amount of change in the supply chain transport speed VF can be relatively The ratio of the amount of change in the harvesting conveyance speed VH is set to be larger than the case where the harvesting conveyance speed VH is lower than the first set value VH1.

According to the invention of claim 10, the supply chain transport speed VF is equal to or greater than a second set value VH2 set in advance as the harvest transport speed VH higher than the first set value VH1, in addition to the effect of the invention described in the claim 9. In this case, the supply chain transport speed VF can be maintained at a predetermined third set value VF2.

1‧‧‧ body frame

2‧‧‧Traveling device

3‧‧‧ threshing device

4‧‧‧ Harvesting device

5‧‧‧ Grain Container

7‧‧‧ discharge cylinder

8‧‧‧ engine room

10‧‧‧Hydraulic stepless speed changer for supply chain (hydraulic stepless speed changer)

12‧‧‧Degranulation conveying device

14‧‧‧Enhancement Agency

15‧‧‧Auxiliary shift lever

16‧‧‧Main shift lever

19‧‧‧Track support components (support frame)

20‧‧‧Narrow rail

22‧‧‧扒搂 pedal

28‧‧‧ Post-harvest frame

29‧‧‧Retraction drive housing

30‧‧‧Reap frame

31‧‧‧Sub-grass

32‧‧‧ Pull up device

33‧‧‧ Harvesting tool device

34‧‧‧Transporting device

35‧‧‧suspension table (harvest support table)

36‧‧‧Transverse drive

37‧‧‧Support

38‧‧‧ bracket

39‧‧‧ Gearbox

41‧‧‧ front side panel

42‧‧‧ rear side panel

43‧‧‧ rear auxiliary clamp

44‧‧‧ bracket

45‧‧‧Speed pedal

46‧‧‧Mode switch

48‧‧‧Dust exhaust fan

50‧‧‧Processing room

51‧‧‧ screening room (screening department)

52‧‧‧Shake screening device

53‧‧‧Wind sorter

55‧‧‧Processing cylinder

56‧‧‧Second processing cylinder

57‧‧‧Dust treatment cylinder

58‧‧‧Draining rice straw conveying device

59‧‧‧Exhaust rice straw cutting machine

62‧‧‧ Pull up device

65‧‧‧ axle

66‧‧‧Hydraulic stepless speed changer for driving

68‧‧‧ Gearbox

70‧‧‧ crankshaft (output shaft)

71‧‧‧Auxiliary shaft

80‧‧‧Support members

85‧‧‧Control device

90‧‧‧With

91‧‧‧With

92‧‧‧With

93‧‧‧With

94‧‧‧With

96‧‧‧With

97‧‧‧With

10A‧‧‧ input shaft

10B‧‧‧ Output shaft

10C‧‧‧First variable speed motor

10c‧‧‧ Gears of the first variable speed motor 10C

10D‧‧‧ Pulley

10E‧‧‧Second variable speed motor

10e‧‧‧ Gears of the second variable speed motor 10E

10F‧‧‧ pivot

10G‧‧‧ sector gear

10S‧‧‧Supply chain speed sensor

11A‧‧‧ front side panel

11B‧‧‧ rear side panel (support frame)

12A‧‧‧Clamping rod

12B‧‧‧Supply chain

12C‧‧‧Clip lever

16A‧‧‧Speed switch

17A‧‧‧Drive sprocket

17B‧‧‧Set round

17C‧‧‧Temperature sprocket

17D‧‧‧Winding prevention board

18A‧‧‧Upper chain track

18B‧‧‧Lower chain track

18C‧‧‧Track Link Plate

18D‧‧‧guides

18E‧‧‧Link Board

19A‧‧‧ board

19C‧‧‧ board

20A‧‧‧ front side

20B‧‧‧ rear side

26A‧‧‧ grain stalk supply

26B‧‧‧With treatment port

26C‧‧‧Excretion of rice straw

34A‧‧‧Snail transfer device

34B‧‧‧Snail transfer device

34C‧‧‧Grain stalk sensor

34S‧‧‧Transport speed sensor

35A‧‧‧Base

35B‧‧‧Supply chain rotation axis

35C‧‧‧Drive Frame

35D‧‧‧Support members

35E‧‧‧Linked Framework

36A‧‧‧Transverse drive shaft

36B‧‧‧ Pulley

39A‧‧‧Draining spiral

39B‧‧‧Auger

41A‧‧‧Working Department

41B‧‧‧Axis

41C‧‧‧Bottom limiter

42A‧‧‧ front side

42B‧‧‧ rear side

43A‧‧‧Support members

44A‧‧‧Axis

44C‧‧‧Upper Limiter

46A‧‧‧Terminal Department

4A‧‧‧Frame

50A‧‧‧ front and rear walls

50B‧‧‧ left wall

50C‧‧‧ front and rear walls

50D‧‧‧Processing cover

53A‧‧‧First air sorter

53b‧‧‧One transfer spiral

53B‧‧‧One time to undertake the flow cell

53C‧‧‧Second air sorter

53d‧‧‧Second transfer spiral

53D‧‧‧Secondary bearing flow cell

65A‧‧‧ axle

65B‧‧‧ drive wheel

65C‧‧‧ Output shaft

65D‧‧‧Output pulley

65E‧‧‧ drive belt

65F‧‧‧Harvest clutch

65G‧‧‧Center gear

65H‧‧‧ side clutch gear

65I‧‧‧ side clutch

66B‧‧‧ Pulley

66S‧‧‧Travel speed sensor

68A‧‧‧ Gears

68B‧‧‧ Output shaft (second output shaft)

68C‧‧‧Coupling

68D‧‧‧ drive shaft

68G‧‧‧Rotary Sensor

6A‧‧‧Speed dial

6B‧‧‧ mode switch

6C‧‧‧Reverse switch

6D‧‧‧stop switch

70A‧‧‧ Pulley

70B‧‧‧ Pulley

70C‧‧‧ Pulley

71A‧‧‧ Pulley (input pulley)

71B‧‧‧ Pulley

71C‧‧‧ Pulley

71D‧‧‧ Pulley

71E‧‧‧ Pulley

90A‧‧‧ threshing clutch

97A‧‧‧Drainage clutch

9A‧‧‧Control valve

9B‧‧‧ fuel tank

VF‧‧‧Transport speed (supply chain transport speed)

VF2‧‧‧ second set value (third set value)

VH‧‧‧Transport speed (harvesting speed)

VH1‧‧‧ first set value

VH2‧‧‧ second set value

Figure 1 is a left side view of the combine.

Figure 2 is a plan view of the combine harvester.

Figure 3 is a left side view of the main part of the threshing apparatus.

Fig. 4 is a cross-sectional view showing the main part of the threshing apparatus.

Fig. 5 is a front elevational view of the main part of the combine harvester.

Fig. 6 is a front elevational view of the main part of the combine.

Fig. 7 is an explanatory view of the installation of the hydraulic stepless transmission of the supply chain.

Fig. 8 (a) is an enlarged cross-sectional view showing a hydraulic stepless speed change device for a supply chain, and Fig. 8 (b) is an enlarged side view thereof.

Figure 9 is a diagram showing the transmission mechanism of the main part of the combine.

Fig. 10 is a connection diagram of a control device.

Fig. 11 is an explanatory diagram of a first driving method of the supply chain.

Fig. 12 is an explanatory diagram of a second driving method of the supply chain.

Fig. 13 is an explanatory diagram of a first stopping method of the supply chain.

Fig. 14 is an explanatory diagram of a second stop method of the supply chain.

Fig. 15 is a left side view of the main part of the conveying device.

Fig. 16 is a plan view of a main part of the conveying device.

Fig. 17 is a left side view of the manual lever during a normal harvesting and threshing operation.

Figure 18 is a left side view of the manual lever during manual operation.

Figure 19 is a left side view of the manual lever.

Fig. 20 is an explanatory view showing the mounting of the hydraulic stepless speed change device for another supply chain.

detailed description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In addition, for the sake of easy understanding, the direction will be described for convenience, but the configuration is not limited thereto.

As shown in FIGS. 1 and 2, the combine is provided with a traveling device 2 below the body frame 1, and the traveling device 2 is composed of a pair of left and right crawler belts for traveling on the soil surface, and is provided on the upper left side of the body frame 1. The threshing apparatus 3 which performs threshing and screening is provided in the front of the threshing apparatus 3, and the harvesting apparatus 4 which collects the grain stalk of a farmland. The grain which is threshed by the threshing apparatus 3 and sorted is stored in the grain container 5 provided in the right side of the threshing apparatus 3, and the grain which is stored is discharged to the outside by the discharge cylinder 7. Further, an operator's seat 6 for the operator to ride is provided on the upper right side of the body frame 1, and an engine room 8 on which the engine 62 is mounted is provided below the operator's seat 6.

(harvesting device)

The harvesting device 4 is attached to a harvesting frame 30 which is a main frame which is provided by the harvesting frame 28, the harvesting drive casing 29 which is disposed laterally in the left-right direction at the front end portion of the harvesting frame 28, and along the harvesting drive casing 29. A joint frame 29A that is erected in the vertical direction is formed. The base of the post-harvest frame 28 is mounted at a portion biased to the right side of the lateral drive cylinder 36, and the lateral drive cylinder 36 is rotatably supported by a pair of left and right suspension frames (harvest support tables) 35 that are erected on the body frame 1. The upper part of 35.

The harvesting device 4 includes: a grass separating rod 31 that is separately planted with grain stalks disposed at a lower portion of the front side; a pulling device 32 that pulls up the fallen grain planting stalks disposed behind the grass dividing rod 31; and is disposed behind the pulling device 32 underside of The harvesting cutter device 33 that cuts the rice straw that grows the grain stems; and the threshing portion conveying device 12 that is disposed behind the pulling device 32 and the harvesting cutter device 33 and that collects the grain stems on the side of the threshing device 3 Transfer device 34. The conveying device 34 is configured by a rice straw conveying device 34A on the rice straw side that conveys the grain stems, and a panicle conveying device 34B on the side of the conveying pan, and in order to prevent the transfer from the conveying device 34 to the threshing portion conveying device 12 In the inner side portion (right side portion) of the front end portion of the threshing portion conveying device 12, the support member 37 is provided at the front end portion of the conveying device 34 to the front end portion of the processing chamber 50.

As shown in Fig. 15, at the rear end portion of the frame 4A of the harvesting device 4, a bracket 38C for mounting the front side auxiliary grip lever and a grain stalk sensor 34C for detecting the amount of deformation of the front side auxiliary grip lever are provided. Bracket 38D. Further, the front end portion of the frame 4A is attached to the coupling frame 29A which is erected on the left side of the harvesting transmission casing 29 of the harvesting frame 30, and is inclined forwardly from the front portion toward the rear portion, and the rear end portion faces the front side of the supply chain 12B.

The front auxiliary clamp lever has an upper auxiliary clamp lever and a lower auxiliary clamp lever which are constituted by a spring plate or the like. The front end portion of the upper auxiliary grip lever is attached to the bracket 38C to which the end portion of the frame 4A is attached by a connecting member such as a bolt, and the rear end portion extends toward the beginning end portion of the supply chain 12B. Further, in order to cover the upper auxiliary grip lever from the lower side, the front end portion of the lower auxiliary grip lever is attached to the bracket 38C to which the end portion of the frame 4A is attached by a connecting member such as a bolt, and the rear end portion is extended to the grip. The front side of the rod 12A.

Further, the width of the upper auxiliary clamp lever and the lower auxiliary clamp lever in the left-right direction is formed to be smaller than the width of the supply chain 12B in the left-right direction, and the lower side is auxiliary. The auxiliary grip levers are placed between the left and right outer plates of the supply chain 12B.

The grain stalk sensor 34C is attached to the bracket 38D to which the end portion of the frame 4A is attached by a joint member such as a bolt. Further, as shown in Fig. 15, the grain stalk sensor 34C preferably has two grain stalk sensors 34C, 34C arranged side by side in the front-rear direction on the bracket 38D.

The grain stalk sensor 34C disposed on the front side detects the presence or absence of the grain stalk transferred from the conveying device 34 to the supply chain 12B. In other words, when there is a grain stalk that is transferred from the conveying device 34 to the supply chain 12B, the rear end portion of the upper auxiliary holding lever moves upward, and the rear end portion of the upper auxiliary holding lever presses the grain stalk disposed on the front side. Detector 34C. On the other hand, in the case where there is no grain stalk, the rear end portion of the upper auxiliary nip lever is maintained in a state of being extended toward the beginning end portion of the supply chain 12B.

The grain stalk sensor 34C disposed on the rear side detects clogging of the grain stalk transferred from the conveying device 34 to the supply chain 12B. In other words, when the grain stem transferred from the conveying device 34 to the supply chain 12B is clogged on the front side of the supply chain 12B, the rear end portion of the lower auxiliary grip lever is moved upward, and the middle portion of the lower auxiliary grip lever is pressed. A grain stalk sensor 34C disposed on the rear side. On the other hand, in the case where there is no clogging of the grain stalk, the rear end portion of the lower auxiliary nip lever is maintained in a state of being placed on the upper side of the supply chain 12B. Further, it is preferable to switch the conveying speed of the supply chain 12B in accordance with the output value of the grain stalk sensor 34C disposed on the rear side.

As shown in Figs. 15 and 16, at the end of the frame 4A, a rear auxiliary grip bar (auxiliary grip lever) 43 for holding the grain stalk conveyed from the transport device 34 to the supply chain 12B together with the supply chain 12B is provided; Change to the configuration described later in The mode switch 6B that processes the head cover 50D operates the manual limit plate 40 that operates the mode switch 46 that performs the normal harvesting and threshing operation and the manual work.

The front end portion of the rear auxiliary clamp lever 43 composed of a spring plate or the like is rotatably supported by a shaft 44A which is attached to the frame 44 to which the terminal end of the frame 4A is attached so as to extend in the left-right direction. The end portion extends rearward along the lower side of the grip lever 12C and extends to the rear side of the front end portion of the grip lever 12C. The width of the rear side auxiliary grip lever 43 in the left-right direction is formed to be smaller than the width of the supply chain 12B in the left-right direction, and the rear side auxiliary grip lever 43 is placed between the left and right outer plates of the supply chain 12B. Further, the shaft 44A is disposed in parallel with the drive shaft 68D of the drive supply chain 12B and the support shaft of the tension pulley 17B.

Further, in the maintenance and inspection work of the supply chain 12B or the like, after the process cylinder cover 50D is opened and the clamp lever 12C is moved upward, the rear auxiliary clamp lever 43 can be the shaft 44A in order to secure a wide maintenance and inspection work space. It is counterclockwise when viewed from the left side of the body.

The manual restricting plate 40 has a front side plate 41 and a rear side plate 42 which is formed in a substantially uniform cross section. The front end portion of the rear side plate 42 is slidably supported by a shaft 41B extending in the left-right direction, which is attached to the rear end portion of the front side plate 41, and has a substantially I-shaped cross section.

The front end portion of the front side plate 41 is rotatably supported by a shaft 44 that supports the front end portion of the rear side auxiliary grip bar 43, and a semicircular arc-shaped working portion 41A is attached to the outer surface of the left side plate of the front end portion. Its press is installed at A mode switch 46 below the front side of the shaft 44A of the bracket 44. Further, a shaft 41B extending in the left-right direction that supports the front end portion of the rear side plate 42 in a rocking manner is attached between the both side plates of the rear end portion of the front side plate 41. Further, in the present embodiment, the front side plate 41 and the rear side auxiliary holding lever 43 are supported on the same shaft 44A, but they may be supported on different shafts.

As shown in FIGS. 17 to 19, the working portion 41A is formed in a semi-arc shape toward the front side (in the state shown in FIG. 17, an arc shape from a position of 6 o'clock toward a 12 o'clock position), the semicircular arc The center of the shape is located at a position shifted from the axis of the shaft 44A (in the state shown in Fig. 17, with respect to the upper side of the front side of the shaft 44A). Further, as shown in FIG. 17, when the manual restricting plate 40 is in the restricted state, the working portion 41A prevents the lower side portion of the working portion 41A from coming into contact with the terminal portion 46A of the mode switch 46 in the working portion. The lower side portion of the 41A is disposed at a constant interval from the terminal portion 46A of the mode switch 46. As shown in Fig. 18, when the manual restricting plate 40 is in an unrestricted state, the upper side portion of the working portion 41A is disposed. The terminal portion 46A of the mode switch 46 is in contact, and the upper portion of the operating portion 41A presses the terminal portion 46A of the mode switch 46.

Further, as the manual restricting plate 40 swings in the counterclockwise direction, the interval between the upper side portion of the working portion 41A and the terminal portion 46A of the mode switch 46 is narrowed, and the upper side portion of the working portion 41A presses the terminal portion of the mode switch 46 more strongly. 46A.

Further, the shape of the working portion 41A is not limited to the above-described shape, and may be a shape that is formed in a quarter arc shape (an arc shape from 9 o'clock to 12 o'clock) toward the front side, and the shape is 1 /4 arc-shaped center ratio axis 44A The axis of the axis is shifted to the front side; the front side is formed into a quarter-arc shape (an arc shape of 9 o'clock to 12 o'clock) and a straight portion inclined from the lower end portion of the arc to the front portion and the lower portion, and the lower portion is made The shape of the /4 arc-shaped center is shifted from the axial center of the shaft 44A to the front side.

In the case where the front side plate 41 is pivoted in the counterclockwise direction when viewed from the left side of the shaft 44A and is switched from the normal harvesting and threshing work to the manual operation, even when the traveling device 2 is traveling When the vibration or the like is transmitted to the front side plate 41, the distance between the terminal portion 46A of the mode switch 46 and the working portion 41A of the front side plate 41 is also narrowed by causing the front side plate 41 to swing counterclockwise about the axis 44A. The terminal portion 46A of the mode switch 46 is reliably pressed and maintained in an ON state.

On the other hand, when the front side plate 41 is oscillated clockwise from the left side of the machine body around the shaft 44A, and switching from the manual operation to the normal harvesting and threshing operation is performed, the detection of the mode switch 46 can be performed. The state gradually changes from the ON state to the OFF state.

In addition, when switching from a normal harvesting and threshing operation to a manual operation, in order to maintain the safety of the auxiliary worker, the operator is warned by a monitor or the like placed in front of the operator's seat 6.

As the mode switch 46, a detection sensor that detects switching from a normal harvesting and threshing operation to a manual operation mode or the like by using the contact between the terminal portion 46A of the mode switch 46 and the working portion 41A of the front side plate 41 can be used. However, in order to prevent the instability of the detection state (ON/OFF state) caused by the vibration generated by the running of the traveling device 2 or the like, when the terminal portion 46A of the mode switch 46 is displaced by a predetermined distance or more, a case is applied. When the above pressing is determined, it is preferable to use a displacement sensor or a pressure sensitive sensor that detects switching from a normal harvesting and threshing operation to a manual operation mode or the like.

When the displacement sensor is used as the mode switch 46, an output value corresponding to the amount of displacement in which the terminal portion 46A is pressed by the operating portion 41A can be output.

As described above, when the displacement sensor is used as the mode switch 46, the mode switch 46 corresponding to the rocking position of the front side plate 41 that performs switching from the normal harvesting and threshing operation to the manual operation is set in advance by the control device 85. The displacement amount (threshold value A) of the terminal portion 46A and the displacement amount (threshold value B) of the terminal portion 46A of the mode switch 46 corresponding to the rocking position of the front side plate 41 for switching from the manual work to the normal harvesting and threshing operation, Even when the vibration caused by the running of the traveling device 2 or the like is significantly changed by the soil surface, the switching of the work can be easily changed by changing the threshold values A and B, and the work can be stably switched.

The front end portion of the rear side plate 42 is slidably supported by the shaft 41B attached to the rear end portion of the front side plate 41, and the front side portion 42A inserted into the inner side of the front side plate 41 is formed in a substantially I-shaped cross section from the rear of the front side plate 41. The cross section of the rear side portion 42B extending toward the rear side is also formed in a substantially I-shape.

In the normal harvesting and threshing operation, the manual restricting plate 40 is swayed clockwise about the shaft 44A to cover the rear side auxiliary grip bar 43 formed between the rear end of the frame 4A and the front end portion of the grip lever 12C. In the restricted state of the upper space, in the manual operation, the manual restricting plate 40 is opened in the counterclockwise direction about the shaft 44A and is open to be formed on the rear side between the rear end of the frame 4A and the front end portion of the grip lever 12C. Auxiliary clamp lever 43 The unrestricted state of the square space.

That is, it is a structure that is switched to the restricted state in which the manual restricting plate 40 is rotated in the downward direction, and the interval between the rear portion of the manual restricting plate 40 and the front portion of the clamp lever 12A is reduced, and the manual direction is restricted. The supply chain 12B supplies grain stalks; this unrestricted state is that the manual restriction plate 40 is rotated in the upward direction, and the interval between the rear portion of the manual restriction plate 40 and the front portion of the clamp rod 12A is enlarged, allowing the grain stalk to be manually supplied to the supply chain 12B.

In the restricted state, the front side plate 41 extends rearward from the shaft 44A and covers the upper end portion of the supply chain 12B in plan view, and the rear side plate 42 extends rearward from the front side plate 41 to reach the front end portion of the grip lever 12C. Rear, it is disposed on the left side of the supply chain 12B. Further, when viewed from the side, the front side plate 41 is gently inclined forward from the shaft 44A toward the rear, and the rear side plate 42 is gently inclined forward from the front side plate 41 toward the rear toward the rear, and reaches the front end portion of the grip lever 12C. The rear.

The front side panel 41 maintains a posture in a restricted state by the lower side stopper 41C provided at the intermediate portion thereof abutting against the upper edge of the support member 43A provided at the base of the auxiliary grip lever 43, and the rear side panel 42 passes through the rear side panel 42 The front end portion abuts against the rear portion of the front side plate 41 to maintain the posture in the restricted state. Further, in order to improve the safety of the auxiliary worker, the front end of the front side plate 41 is preferably disposed on the front side of the front end of the supply chain 12B, and is preferably disposed on the upper side of the conveyance device 34 as compared with the prevention of scattering of dust or the like. The rear end of the front dust cover 49A is disposed on the rear side.

Further, in order to prevent the extension from the body, it is preferable to dispose the right side of the front side plate 41 on the rear side disposed on the upper side of the conveying device 34. The left end side of the cover 49B is located further inside. Further, as shown in FIG. 17, the rear side plate 42 can be swung around the shaft 41A of the rear end portion of the front side plate 41, and the manual restricting plate 40 can be swung in the vertical direction without removing the rear side dust cover 49B.

In the unrestricted state, the front side plate 41 extends obliquely from the shaft 44A toward the front front high and then downward when viewed from the side, and the rear side plate 42 extends substantially horizontally from the shaft 41B of the front side plate 41 toward the front. The front side panel 41 maintains an unrestricted posture by abutting the upper surface of the front side panel 41 with the upper side stopper 44C which is erected on the bracket 44, and the rear side panel 42 passes the upper surface and the front side of the rear side portion 42B of the rear side panel 42. The rear portion of the side plate 41 abuts to maintain the posture in an unrestricted state. In addition, in order to prevent fluctuations in the restricted state posture and the unrestricted state posture of the front side plate 41 caused by the propagation of vibration or the like, it is easy to shake the front side plate 41, and it is preferable to connect the transfer device 34 by the spring-like spring across the shaft 44A. The left side of the rear portion and the front side panel 41 and the front side panel 41 are urged in a restricted state posture and an unrestricted state posture.

In order to maintain the posture of the grain stalk transferred from the conveying device 34 to the threshing portion conveying device 12, the auxiliary conveying device is disposed on the upper surface of the support body 37 opposed to the smear conveying device 34B or on the right side of the lower surface. .

In order to convey the wheat straw of the grain stalk transferred from the stalk transfer apparatus 34B to the supply chain 12B, the auxiliary conveyance apparatus is provided with the belt which has the protrusion which moves from the front side to the back side. Further, it is preferable that the rotation of the sub-shaft 71, which will be described later, is transmitted to the auxiliary conveyance via the output shaft 10B of the hydraulic-type stepless speed change device (the "hydraulic type stepless speed change device" in the request item) 10 of the supply chain. The apparatus is such that the moving speed of the belt with the projections and the like is the same as the moving speed of the supply chain 12B. In addition, instead of the hydraulic chain type stepless speed change device (hydraulic type stepless speed change device) 10 for the supply chain, the hydraulic mechanical type stepless speed changer using the combined static oil type stepless speed changer and the planetary gears may be used. .

As shown in FIGS. 3 to 5, the left suspension table 35 is mounted on the upper side of the base 35A which is erected on the body frame 1. At the front portion of the left side of the suspension table 35, there is provided a supply chain rotating shaft 35B extending in the up and down direction to rotatably support the base of the lateral transmission frame 35C, wherein the base shaft of the transmission frame 35C supports the lateral transmission The left side of the barrel 36. In addition, in order to rotate the lateral drive cylinder 36 around the supply chain rotation shaft 35B, the maintenance and inspection work of the weeding lever 31 of the harvesting device 4, the apparatus 32, and the like are easily performed, and the lateral transmission frame 35C is formed on the front side. In the observation, an arc shape having a convex portion from the base portion to the front end portion is observed. Further, as will be described later, the threshing portion conveying device 12 that transports the grain stalk also rotates around the supply chain rotating shaft 35B.

The suspension table 35 on the right side is mounted on the upper side of the base 35A that is erected on the body frame 1. A support member 35D that supports the right side portion of the lateral drive cylinder 36 is attached to the upper end portion of the suspension table 35. The support member 35D is composed of a front side support member and a rear side support member that are divided into a substantially semi-arc shape. In the case where the shaft supports the right side portion of the lateral drive cylinder 36, the front and rear side support members are engaged, and the lateral drive cylinder 36 is rotated about the fixed shaft 35B for the maintenance of the harvesting device 4 or the transmission 65, and the harvesting is performed. When the device 4 is moved to the left side, the front and rear support structures are released. The cooperation of the pieces pulls the lateral drive cylinder 36 forward. In addition, in order to increase rigidity such as deformation of the left and right suspension stages 35 and 35, the connection frame 35E is placed in the intermediate portion of the left and right suspension stages 35 and 35 in the vertical direction.

The rotation of the engine 62 is transmitted to the traveling hydraulic stepless transmission 66 via the pulley 66B supported on the input shaft of the traveling hydraulic stepless transmission 66, and is transmitted to the hydraulic type stepless transmission 66 for traveling. The rotation is transmitted to the pulley 36B that is supported at the right end portion of the lateral transmission shaft 36A of the lateral transmission cylinder 36 via a pulley (not shown) supported on the output shaft of the traveling hydraulic stepless transmission 66, thereby The lateral drive cylinder 36 and the transverse drive shaft 36A are rotated. Further, the rotation of the transmission to the lateral transmission shaft 36A is transmitted to the pulling device 32 of the harvesting device 4, the harvesting cutter device 33, the conveying device 34, and the like via a transmission shaft (not shown) built in the frame 28.

Further, the rotation of the engine 62 is transmitted to the traveling hydraulic type stepless speed change device 66 via the pulley 66B supported on the input shaft of the traveling hydraulic stepless speed change device 66, and is transmitted to the hydraulic type stepless speed change for traveling. The rotation of the device 66 is transmitted to the left and right crawlers of the traveling device 2 via the transmission 65.

(granulation device)

As shown in FIG. 4, the threshing apparatus 3 is provided with the processing chamber 50 which performs the threshing of the grain stalk in the upper part of the front side, and the screening chamber (screening part) 51 which screens the grain after threshing on the lower side of the process chamber 50.

In the processing chamber 50, a processing cylinder 55 having a plurality of processing teeth is supported on a processing cylinder shaft supported on the front and rear walls 50A, 50C. and, A grain stalk supply port 26A is opened in the lower left portion of the front wall 50A of the processing chamber 50, a processing port 26B is opened in the lower portion of the left wall 50B along the processing cylinder 55, and a discharge straw stalk 26C is opened in the lower left portion of the rear wall 50C. In addition, the threshing portion conveying device 12 that transports the rice straw of the grain stalk along the processing port 26B and transports it to the rear is arranged in the left side of the processing chamber 50, and the discharged rice straw grain after the threshing conveyed by the threshing portion conveying device 12 is finished. The stalk is transferred to the discharge rice straw conveying device 58 provided in the rear of the threshing portion conveying device 12, and further conveyed backward, and then cut by a pair of discharge rice straw cutters 59 and discharged to the outside.

A shaking screening device 52 is disposed at an upper portion of the screening chamber 51. In the lower portion of the screening chamber 51, a first air sorting machine 53A that conveys air to a sieve of a front portion of the shaking screening device 52 is disposed in order from the front side; a primary receiving trough 53B of the grain leaked from the device; a second air sorting machine 53C that transports air to the sieve at the rear of the shaking screening device; and recovering the grain attached to the branching stem and the like that is leaked from the shaking screening device (two The second secondary receiving trough 53D. The grain recovered by the primary receiving launder 53B is transferred to the grain container 5 by the primary transfer screw 53b built in the primary receiving launder 53B, and the grain or the like recovered by the secondary receiving launder 53D is built in the secondary receiving launder. The secondary transfer screw 53d of 53D is transferred to the secondary processing chamber.

The rear portion of the right side of the processing chamber 50 communicates with the dust-removing treatment chamber, and inside the dust-removing chamber, a dust-removing treatment cylinder 57 is supported in the front-rear direction, and the dust-removing treatment cylinder 57 is provided with a spiral blade body on the outer peripheral surface. The front side of the dust treatment chamber is provided with a secondary treatment chamber for treating and reducing the secondary material. A secondary processing cylinder 56 is supported on the inner shaft of the secondary processing chamber, and the secondary processing cylinder 56 is external The peripheral surface has intermittent spiral blades. In addition, a dust exhaust fan 48 that sucks out the outside of the machine, such as rice stalk debris generated during the threshing and screening, is disposed on the upper side of the rear side of the shaking screen.

(Threshing unit conveying device)

As shown in FIGS. 3 and 6 and the like, the threshing portion conveying device 12 includes a grip bar 12A located on the upper side and a supply chain 12B located on the lower side. The clamp rod 12A urges the processing cylinder cover 50D of the processing chamber 50 toward the supply chain 12B side by an urging mechanism 14 such as a spring. The supply chain 12B is an endless chain that is driven to be wound around the set wheels 17B, 17B and the drive sprocket 17A, wherein the set wheels 17B, 17B are rotatably supported at the front and rear ends of the upper chain track 18A, respectively, and the drive chain The wheel 17A is disposed between the setting wheels 17B, 17B. The supply chain 12B on the active side placed on the upper side chain rail 18A sandwiches the clamp rod 12A and the rice straw of the grain stalk during the movement from the front side toward the rear side.

Further, in order to prevent the conveyed grain stalk from being wound around the end portion of the supply chain 12B or the like, it is preferable to use the idle sprocket provided with the winding preventing plate 17D at both side portions of the rear set pulley 17B.

In order to facilitate the manual operation of the manual worker, the speed adjustment of the supply chain 12B (the supply chain conveyance speed in the request item) VF1 is improved, and the workability is improved, and the speed adjustment scale is provided on the side surface of the processing cylinder cover 50D. Disk 6A. Further, in order to efficiently adjust the speed of the speed VF of the supply chain 12B in accordance with the amount of the manual grain stalk, the speed dial 6A is disposed around the rear side auxiliary grip lever 43 on which the manual grain stalk is placed, or is intended to be seated. The operator on the operating seat 6 can effectively assist the unskilled auxiliary operator, and the speed dial 6A can also be disposed on the side panel of the operating seat 6.

Further, a speed adjustment pedal 45 for speed adjustment of the speed VF of the supply chain 12B during manual operation may be provided on the body frame 1 in front of the threshing apparatus 3 together with the speed dial 6A or in place of the speed dial 6A. .

When viewed from the side, the clamp rod 12A is disposed to be inclined from the grain stalk supply port 26A of the process chamber 50 to the discharge rice straw port 26C before the treatment port 26B is lowered low. The upper chain rail 18A of the supply chain 12B on the side of the load side is inclined from the front end of the front side of the horizontal shaft drive cylinder 36, and then tilted gently from the front to the rear and then to the grain stalk supply port 26A of the processing chamber 50. After the front side, the grain stalk supply port 26A to the discharge rice straw port 26C of the processing chamber 50 are inclined from the grain stalk supply port 26A of the processing chamber 50 to the front side of the processing port 26B. Then, after extending from the discharged rice straw mouth 26C to the rear level, the front height and the low ground are inclined to reach the rear end of the front end portion of the ear tip conveying device 34B. In addition, in order to easily change the length of the front-back direction of the threshing part conveying apparatus 12 which changes the number of harvesting lines of the harvesting apparatus 4, it is preferable that the upper side chain rail 18A is a division structure which can divide in the front-back direction.

The lower chain rail 18B on which the supply chain 12B on the inactive side is placed is tilted from the front end above the front shaft 71 above the rotation of the drive sprocket 17A to drive the engine 62, and is inclined to the rear end. Further, the rear end of the lower side chain rail 18B is disposed in front of the rear side of the installation wheel 17B and is discharged below the rice straw mouth 26C.

A guide 18D is detachably attached to a front end portion of the lower chain rail 18B, and the guide 18D guides the supply chain 12B on the non-active side to a drive sprocket disposed lower than the front end portion of the lower chain rail 18B. 17A. The guide 18D is provided above the counter shaft 71 and formed in a substantially 1/4 circular shape. Further, in order to prevent contamination of the counter shaft 71 or the like due to dropping of oil or the like, it is preferable to provide a cover (not shown) above the guide 18D.

On the lower side of the lower side chain rail 18B, a rail supporting member (supporting frame) 19 that supports the upper side chain rail 18A and the lower side chain rail 18B by the rail connecting plate 18C is provided. That is, the supply chain 12B is supported by the rail support member 19. Further, a rice straw chip guide plate (not shown) is attached to the coupling plate 18E connected to the upper chain rail 18A and the lower chain rail 18B, and the rice straw chip guiding plate prevents the grain stem from being transported from the supply chain. The straw scum falling down from 12B falls to the driving portion of the above-described screening chamber 51.

As shown in Figs. 3 and 5, the front end portion of the rail supporting member 19 is attached to a plate 19A which is attached to the bracket 19B by bolts or the like, and the bracket 19B is rotatably attached to the suspension table 35 on the left side. The upper and lower ends of the fixed shaft 35B. Further, when the supply chain 12B is rotated about the supply chain rotation shaft 35B, in order to reduce the front end portion of the supply chain 12B from entering the inside of the machine body, the rear side of the installation wheel 17B on the front side of the winding supply chain 12B is erected. The supply chain rotating shaft 35B.

In order to prevent interference with the hydraulic-type stepless speed change device (hydraulic stepless speed change device) 10 or the like for the supply chain, the rail support member 19 is hydraulically supplied to the supply chain from the front end portion toward the rear side when viewed from the side. After the input shaft 10A of the speed change device 10 extends between the output shaft (second output shaft) 68B of the gear case 68, the shift motor 10C is bent forward by approximately 90 degrees and extends upward. Further, after extending in the front direction of the counter shaft 71, the lower side of the lower chain rail 18B is lowered from the lower side of the guide member 18D to the lower side. It is inclined and reaches the center portion of the lower side chain rail 18B in the front-rear direction.

When maintenance and inspection of the supply chain 12B, the supply chain hydraulic stepless transmission 10, and the like are performed, the support member 19 is rotated about the fixed shaft 35B, and the rear portion of the supply chain 12B is threshed. The main body of the device 3 is separated and is easy to carry out. In addition, in order to facilitate the maintenance and inspection of the supply-type hydraulic stepless transmission 10, the supply chain rotation shaft 35B is erected on the front side of the front portion of the hydraulic chain type stepless transmission 10 for the supply chain.

When viewed from the side, as shown in FIG. 3, the front side tension wheel 17B is provided in the vicinity of the front side of the horizontal shaft drive cylinder 36 that transmits the rotation of the engine 62 to the harvesting device 4, and the rear side set wheel 17B is disposed in the ear. The vicinity of the rear end of the front end portion of the transport apparatus 34A is slightly moved. The drive sprocket 17A is disposed between the tension pulleys 17B and 17B on the front and rear sides in the front-rear direction and on the side of the front pulley 19B, and is located on the horizontal shaft transmission cylinder 36 and the rotation of the engine 62 to the supply chain 12B. The center of the counter shaft 71 is substantially. Further, in the vertical direction, the sub-shaft 71 is substantially at the center of the rail supporting member 19 that extends rearward of the support lower chain rail 18B or the like. Further, a tension sprocket 17C whose base is supported by a drive shaft 68D to be described later is provided between the front side pulley 17B and the drive sprocket 17A.

As a result, the supply chain 12B moves upward from the drive sprocket 17A, and then moves along the tension sprocket 17C to reach the front side of the installation wheel 17B, and the front side of the extension wheel 17B is on the upper side of the upper side chain rail 18A toward the rear side. The wheel 17B is set to move. Then, after the supply chain 12B is moved from the rear side of the installation wheel 17B toward the front lower side chain rail 18B, from the rear side of the lower chain rail 18B The end is moved along the guide 18D and reaches the drive sprocket 17A after the upper side guide member 18D of the lower side chain rail 18B is moved.

As shown in FIG. 6, the rotation of the engine 62 is transmitted to the supply chain hydraulic stepless transmission 10 via the counter shaft 71, and after the gearbox 68 is increased or decreased, the drive is transmitted to the drive sprocket of the threshing portion conveying device 12. 17A connected output shaft 68B.

The both side shafts of the counter shaft 71 are supported by a pair of support members 80 that are erected toward the front in the center portion of the front wall 50A of the threshing apparatus 3 in the vertical direction. The rotation of the engine 62 is transmitted to the counter shaft 71 via a pulley (input pulley) 71A supported at the right end portion of the counter shaft 71.

The rotation of the transmission to the counter shaft 71 is transmitted to the process cylinder 55 via the pulley 71C, belt 92 supported on the left side of the pulley 71A, and via the pulley 71D, belt 93 on the right side of the pulley 71E supported at the left end of the counter shaft 71. Then, it is transmitted to the input shaft 10A of the hydraulic stepless transmission 10 for the supply chain. The rotation of the input shaft 10A of the hydraulic-type stepless speed change device 10 for transmission to the supply chain is transmitted to the gear case 68 via the output shaft 10B as shown in Fig. 8, and is increased and decreased by the gear of the gear case 68, and then transmitted to the output shaft. 68B. The rotation of the transmission to the output shaft 68B is transmitted to the drive sprocket 17A of the supply chain 12B via the coupling 68C. Further, the drive sprocket 17A is rotatably supported on the drive shaft 68D.

The drive shaft 68D is supported on the plate 19C attached to the right side of the support frame 19, and when the support frame 19 is rotated with respect to the supply chain rotation shaft (fixed shaft) 35B, the output shaft 68B using the coupling 68C is released. With the connection of the drive sprocket 17A, the rotation of the engine 62 is not transmitted to the drive chain The wheel 17A can safely replace the supply chain 12B, the guide 18D, and the like. Further, instead of the coupling 68C that connects the output shaft 68B and the drive shaft 68D, a clutch or a dog clutch that is opposed to the end portions of the output shaft 68B and the drive shaft 68D may be provided.

As shown in Fig. 7, the gear case 68 is attached to the right side surface of the rear side plate (support frame) 11B which is provided to the front side of the front wall 50A of the threshing apparatus 3 and which is located lower than the front side. Further, in order to effectively utilize the space on the front side of the threshing apparatus 3, the supply chain hydraulic stepless speed change device 10 is attached to the left side surface of the gear case 68, and after the supply chain hydraulic type stepless speed change device 10 is provided The first shift motor 10C that rotates the pivot 10F of the hydraulic stepless transmission 10 of the supply chain is attached to the side.

Further, as shown in FIG. 20, the first shift motor 10C that rotates the pivot 10F of the supply chain hydraulic stepless transmission 10 can be arranged side by side on the rear side of the supply chain hydraulic stepless transmission 10. And a second shifting motor 10E having a larger output than the first shifting motor 10C and rotating the pivot 10F at a high speed.

The front end portion of the sector gear 10G supported on the pivot shaft 10F at the base end portion is fitted to the gear 10c of the first shift motor 10C mounted on the body frame 1, and the gear 10e of the second shift motor 10E. The first shifting motor 10C is driven to rotate the pivot 10F in the normal harvesting mode, and the second shifting motor 10E is driven to rotate the pivot 10F in the manual mode. Further, in the harvest mode, the second shifting motor 10E is free to rotate, and in the manual mode, the first shifting motor 10C is free to rotate.

The oil pressure type stepless speed change device 10 and the gear box 68 for the supply chain can be used. The first shift motor 10C and the second shift motor 10E may be attached to the gear case 68 or may be attached to the body frame 1. Instead of the pump unit including the input shaft 10A and the motor unit including the output shaft 10B, the supply chain may be integrated. The hydraulic type stepless speed change device 10 uses a hydraulic type stepless speed change device for a supply chain in which the pump portion and the motor portion are divided.

Further, the first shifting motor 10C is shifted in accordance with the driving speed of the harvesting device 4 to shift the hydraulic chain type stepless transmission 10 for the supply chain. Specifically, it is preferable to detect the speed of the rotation that is output from the traveling hydraulic stepless transmission 66 and transmitted to the harvesting device 4, and to operate the first shifting motor 10C based on the rotational speed.

In order to reduce the vibration, the front end portion of the rear side plate 11B and the rear end portion of the front side plate 11A provided on the joint frame 35E of the left and right suspension tables 35 and 35 are connected by loosely inserted pins. Further, the rear portion of the rear side plate 11B is coupled by a bracket such as a bracket on the counter shaft 71 side and a bolt. Further, a harvesting position sensor 36S that detects the rotational position of the rear frame 28 in the vertical direction is provided on the lower side of the lateral transmission shaft 36A.

As shown in Fig. 6, in order to shorten the hydraulic system passage, a hydraulic system such as a hydraulic stepless transmission 10 for controlling the supply chain and a hydraulic stepless transmission 66 for traveling is provided on the left side of the base 35A on the right side. The control valve 9A that opens and closes the passage is provided with a tank 9B that supplies oil to the supply chain hydraulic stepless transmission 10, the traveling hydraulic stepless transmission 66, and the like on the right side of the control valve 9A.

In order to effectively utilize the space on the lower side of the front side of the threshing apparatus 3, it is possible to prevent interference of the supply chain 12B, the belt 93, and the like when the supply chain 12 rotates, and supply The input shaft 10A and the output shaft 10B of the hydraulic hydraulic stepless transmission 10 and the output shaft 68B of the gear case 68 are disposed in a vertically aligned state.

In order to prevent the pressure loss of the hydraulic pressure, the input shaft 10A of the pump portion of the hydraulic chain type stepless transmission 10 of the supply chain is disposed below the output shaft 10B to shorten the hydraulic chain type stepless transmission 10 for the supply chain. , control valve 9A and oil pressure path.

In order to facilitate the winding of the supply chain 12B, the output shaft 68B of the gear case 68 is disposed above the output shaft 10B of the hydraulic chain type stepless transmission 10 of the supply chain to shorten the length of the supply chain 12B.

(narrow rail)

As shown in Fig. 2, on the left side (unharvested side) of the combine, a narrow guide rail 20 that can be switched to an extended posture that protrudes to the outside of the combine and a storage posture that is stored inside is provided along the side portion.

The narrow guide rail 20 is composed of a front side portion 20A and a rear side portion 20B that are coupled in an indirect state, and the front end portion of the front side portion 20A is rotatably pivotally supported at the front end portion of the grass-dividing frame on the rear side of the leftmost herb body 31, and thereafter The rear end portion of the side portion 20B is movably supported in the front-rear direction by a support member provided at a side portion on the left side of the body frame 1. Further, the narrow guide rail 20 can be switched to the extended posture and the stored posture by a switching mechanism (not shown) having a link structure.

Further, when the mode switch 6B is connected and the normal harvest mode is switched to the manual mode, the narrow guide rail 20 is maintained in the storage posture in order to prevent the auxiliary worker who performs the manual operation from coming into contact with the narrow guide rail 20.

(transmission mechanism)

Next, the transmission mechanism of the present embodiment will be described. As shown in FIG. 9, the rotation of the engine 62 is branched into a first path A that is driven to the hydraulic chain type stepless transmission 10 of the supply chain, and a second path B that is driven to the hydraulic-type stepless transmission 66 for traveling. The third path C that is driven by the gear box 39 in front of the grain container 5 is driven.

In the first path A that is transmitted to the hydraulic chain type stepless transmission 10 for the supply chain, the rotation of the engine 62 is supported on the counter shaft 71 via the pulley 70A, the belt 90 supported on the crankshaft (output shaft) 70, and the belt 70. The pulley 71A is driven to the counter shaft 71. Further, a threshing clutch 90A is provided on the first path A, and the threshing clutch 90A connects and disconnects the transmission to the downstream side of the belt 90.

The rotation of the counter shaft 71 is transmitted to the secondary processing cylinder 56 and the dust exhaust processing cylinder 57 via the pulley 71B, the belt 91, and the like, and is transmitted to the processing cylinder 55 and the discharge rice straw conveying device 58 via the pulley 71C, the belt 92, and the like. Further, the rotation of the counter shaft 71 is transmitted to the input shaft 10A via the pulley 71D, the belt 93, and the pulley 10D supported on the input shaft 10A of the supply chain hydraulic stepless transmission 10. Further, the rotation of the counter shaft 71 is transmitted to the first air sorter 53A, the primary transfer screw 53b, the second air sorter 53C, the secondary transfer screw 53d, and the dust discharge via the pulley 71E and the belt 94 supported on the left side of the pulley 71D. The fan 48, the shake screening device 52, and the rice straw cutter 59 are discharged.

The rotation of the input shaft 10A is transmitted to the gear case 68 via the output shaft 10B, and is increased and decreased by the plurality of gears 68A built in the gear case 68, and then transmitted to the output shaft 68B of the shaft supported on the gear case 68.

In addition, a supply chain speed sensor 10S is provided in the gear box 68, which is provided for The chain speed sensor 10S measures the rotational speed of the gear 68A provided on the output shaft 10B of the hydraulic chain type stepless transmission 10 for the supply chain.

The rotation of the output shaft 68B is transmitted to the drive shaft 68D via the coupling 68C, and is transmitted to the supply chain 12B via the drive sprocket 17A supported by the left end of the drive shaft 68D. Further, in order to allow the supply chain 12B to be easily rotated about the fixed shaft 35B that is erected on the left suspension table 35, as shown in Fig. 5, the center of the supply chain rotation shaft 35B is placed closer to the center of the supply chain 12B. The supply chain rotating shaft 35B is vertically extended in the vertical direction on the inner side of the body. As shown in FIG. 6, the left end of the output shaft 68B extends further to the left than the left end of the counter shaft 71, and is supported by the drive sprocket 17A and The pulley 71E is further to the left.

On the left side of the operating seat 6, there is provided a main shift lever 16 for remotely operating the hydraulic shift type stepless transmission 66, and a rear shift lever 15 is provided on the rear side of the main shift lever 16, the auxiliary shift lever 15 The stepped sub-transmission device provided on the transmission mechanism in the transmission 65 is switched in accordance with the lodging state of the planting grain stalk. The main shift lever 16 is provided with a speed increasing switch 16A and a speed reducing switch 16B for remotely operating the hydraulic chain type stepless transmission 10 for the supply chain. When the speed increase switch 16A is pressed for a long period of time for about 2 seconds or longer, the rotation of the output shaft 10B of the supply chain hydraulic stepless speed change device 10 can be changed to the highest rotation speed, and if the speed increase switch 16A is short. When the ground is pressed for about one second, the rotation of the output shaft 10B can be made stepwise. Similarly, when the deceleration switch 16B is pressed for a long period of time for about 2 seconds or longer, the rotation of the output shaft 10B of the hydraulic chain type stepless transmission 10 of the supply chain can be changed to the minimum rotation speed, and if the deceleration switch 16B is short. When the ground is pressed for about one second, the rotation of the output shaft 10B can be made stepwise to a low speed. The speed increase switch 16A and the speed reduction switch 16B are collectively referred to as a speed change switch S. Further, a main shift lever position sensor 16S that measures the shift position of the main shift lever 16 is provided at a lower portion of the main shift lever 16, and a shift position of the sub shift lever 15 is measured at a lower portion of the sub shift lever 15. A sub-shift lever position sensor 15S.

In the second path B that is driven to the hydraulic shift type stepless transmission 66, the rotation of the engine 62 is supported by the hydraulic stepless shifting device via the pulley 70B and the belt 96 supported on the crankshaft 70. The pulley 66B on the input shaft of 66 is input to the hydraulic hydraulic stepless transmission 66.

The rotation of the input shaft of the hydraulic-type stepless transmission 66 for traveling is transmitted to the transmission 65 via the output shaft of the traveling hydraulic stepless transmission 66, and is built in the plurality of gear increase/decelerations of the transmission 65, via The shaft supports the left and right axles 65A on the transmission 65 and the drive wheels 65B fixed to the front end portion of the axle 65A to be driven to the traveling device 2. Further, the rotation of the output shaft of the traveling hydraulic stepless transmission 66 is attached to the output shaft 65C of the portion on the upstream side of the auxiliary transmission from the transmission path in the transmission 65 via the front end of the output shaft 65C. The output pulley 65D and the belt 65E are transmitted to the pulley 36B supported at the right end of the lateral transmission shaft 36A. The harvesting clutch 65F is configured as a structure for biasing the tension roller to the above-described belt 65E.

That is, the rotation of the engine 62 that is transmitted to the input shaft of the hydraulic stepless transmission 66 for traveling is increased or decreased by the hydraulic type stepless transmission 66 for traveling. The speed-rear branching, one of which is supported by the left and right axles 65A of the transmission 65 via the shaft, and the crawler belt of the traveling device 2, and the other is transmitted to the pulling device 32 of the harvesting device 4, the conveying device 34, etc. via the lateral transmission shaft 36A, so that the vehicle is driven. The traveling speed V of the apparatus 2, the pulling speed of the pulling device 32 of the harvesting device 4, and the conveying speed of the conveying device 34 (the harvesting conveying speed in the request item) VH are determined in a fixed relationship. For example, when the traveling speed V of the traveling device 2 is high, the pulling speed of the pulling device 32 of the harvesting device 4 and the conveying speed VH of the conveying device 34 are also high, and the traveling speed V of the traveling device 2 is low. In the case, the pulling speed of the pulling device 32 of the harvesting device 4 and the conveying speed VH of the conveying device 34 are also low. Further, a travel speed sensor 66S and a transport speed sensor 34S that measure the rotational speed are provided on the axle 65A and the lateral drive shaft 36A, respectively.

In the transmission path in the transmission 65, the right and left side clutch gears 65H are axially supported by the right and left side portions of the sun gear 65G provided on the downstream side of the auxiliary transmission. A claw clutch type right and left side clutch 65I is formed between the sun gear 65G and the right and left side clutch gears 65H. The right and left axle gears attached to the base of the left and right axles 65A are meshed with the right and left side clutches 65I.

The left and right side clutches 65I are slid in the left-right direction by the moving device (not shown) that is operated by the right and left tilting operation of the steering lever disposed in front of the operating seat 6, and the side clutch gear 65H is slid in the left-right direction. The gear 65G is disengaged and becomes a transmission disconnected state.

Further, the left and right side clutches 65I are interlocked with the stepping operation of the pedals disposed on the bottom plate on the front lower side of the operation seat 6, and when the pedals 22 are stepped on, the sun gear 65G and the side clutch gears 65H pass through the left and right sides. The side clutch 65I is disengaged, and the rotation of the engine 62 is not transmitted to the axle 65A. On the other hand, when the stepping of the pedal 22 is released, the sun gear 65G and the side clutch gear 65H are engaged by the left and right side clutches 65I, and the rotation of the engine 62 is transmitted to the axle 65A.

When the farmland is harvested to the field head, the main shift lever 16 is operated to the neutral position and stopped, the pedal 22 is stepped on, and the engagement of the sun gear 65G and the side clutch gear 65H is released by the side clutch 65I, and the axle 65A is stopped. Turn.

When the main shift lever 16 is operated again on the forward side in a state where the combine harvester is stopped, the output shaft 65C is driven by the output of the traveling hydraulic stepless transmission 66, and the harvesting device 4 passes through the harvesting clutch 65F. driven. At this time, since the right and left side clutches 65I are turned off, the traveling device 2 does not perform forward driving and maintains the parking state. With this configuration, in the state of being harvested and stopped, the planting grain stalk entering the harvesting device 4 can be harvested by the operation of the pedal 22 and the main shift lever 16.

Further, the harvesting clutch 65F can also be interlocked with the stepping operation of the pedal 22 . That is, when the pedal 22 is stepped on, the output shaft 65C of the transmission 65 and the lateral transmission shaft 36A of the harvesting device 4 are connected via the harvesting clutch 65F, and the harvesting device 4 is driven. On the other hand, when the stepping of the pedal 22 is released, the output shaft 65C of the transmission 65 and the lateral transmission shaft 36A of the harvesting device 4 are released by the harvesting clutch 65F. The connection is stopped to stop the driving of the harvesting device 4.

In the case where the farmland is harvested to the field head, the main shift lever 16 is operated to the neutral position and stopped. When the combine pedal is stopped, when the pedal 22 is stepped on, the harvesting device 4 is driven. At this time, since the main shift lever 16 is moved to the neutral position, the traveling device 2 does not perform the forward drive but maintains the parking state.

With respect to the third path C that is transmitted to the discharge screw 39A of the grain container 5, the rotation of the engine 62 is transmitted to the grain container 5 via the pulley 70C, the belt 97, the gear box 39, and the like supported on the crank shaft 70. The lower discharge spiral 39A. Further, the rotation of the discharge screw 39A is transmitted to the auger 39B of the discharge cylinder 7 provided behind the grain container 5. Further, the third path C is provided with a discharge clutch 97A that connects and disconnects the transmission of the comparison belt 97 to the downstream side of the transmission.

(supply chain stop and stop method)

Next, a method of driving and stopping the supply chain 12B of the present embodiment will be described. As shown in FIG. 10, on the input side of the control device 85 provided on the operating seat 6, a traveling speed sensor 66S that detects the speed V of the traveling device 2 is connected via a predetermined input interface circuit; and the conveying of the harvesting device 4 is detected. The transport speed sensor 34S of the speed VH of the device 34; the supply chain speed sensor 10S that detects the speed VF of the supply chain 12B of the threshing portion transport device 12; and the sub-shift lever position sensing for detecting the rod position of the sub-shift lever 15 The acceleration/deceleration switches 16A and 16B for increasing or decreasing the speed VF of the supply chain 12B provided on the main shift lever 16, and the increase and decrease of the speed VF of the supply chain 12B provided on the side surface of the processing cylinder cover 50D. Speed scale The disk 6A; the mode switch 6B for switching to the manual mode; the reverse switch 6C for inverting the supply chain 12B from the rear side toward the front side; and the grain stalk sensor 34C for detecting the presence or absence of the grain stalk conveyed on the supply chain 12B And a stop switch 6D provided on the side surface of the processing cylinder cover 50D for emergency stop of the drive of the supply chain 12B. On the other hand, on the output side, a first shift motor 10C that drives the pivot 10F of the supply-type hydraulic stepless transmission 10 in the normal harvest mode is connected via a predetermined output interface circuit; and in the manual mode. The second shift motor 10E of the pivot 10F of the hydraulic stepless transmission 10 for the supply chain is driven.

Further, the mode switch 6B is not limited to a switch that the operator manually operates. In other words, in order to prevent the posture of the grain stalk moving from the end portion of the conveying device 34 of the harvesting device 4 to the beginning end portion of the supply chain 12B, the manual restricting plate 40 that is rocked in the vertical direction is provided at the end portion of the conveying device 34. A rear side auxiliary grip lever 43 is provided on the lower side of the manual restricting plate 40. When switching to the manual mode, in order to manually place the grain stalk on the rear auxiliary grip lever 43 and the supply chain 12B, the manual restricting plate 40 is swung upward from the center 44A, and is restricted from the restricted state to the unrestricted state. State switching. The mode switch 46 that is turned ON/OFF in conjunction with the operation of shaking the manual limit plate 40 can be used as the mode switch 6B.

<First driving method of supply chain>

Fig. 11 shows a first driving method of the speed VF of the supply chain 12B. The horizontal axis represents the traveling speed V of the traveling device 2 detected by the traveling speed sensor 66S, and V1 and V2 are the first and second set values of the traveling speed V. left The vertical axis on the side indicates the speed VF of the supply chain 12B detected by the supply chain speed sensor 10S, VF1 and VF2 are the first and second set values of the speed VF of the supply chain 12B, and the vertical axis on the right side indicates the transport speed. The speeds VH, VH1, and VH2 of the transport device 34 detected by the sensor 34S are the first and second set values of the transport speed VH, and the travel speeds V of the travel devices V and VH1 and VH2 are the first and second set values V1. The speed at V2 corresponds to.

Further, the solid line indicates the speed VF of the supply chain 12B, and the broken line indicates the speed VH of the conveying device 34.

First, the control device 85 determines whether or not the input of the mode switch 6B is present. When it is determined that there is no input of the mode switch 6B, the control device 85 determines whether or not the speed VH of the transport device 34 (the input value from the transport speed sensor 34S) is It is lower than the first set value VH1.

When it is determined that the speed VH of the transport device 34 is lower than the first set value VH1, as shown in the first state, the speed VF of the supply chain 12B is controlled to the speed calculated by the following Equation 1. Further, the conveyance speed VH of the conveyance device 34 is changed with respect to the traveling speed V of the traveling device 2 by the shift section bit set by the sub shift lever 15.

Equation 1 VF=K×V

Where K=VH1/V1

On the other hand, when it is determined that the speed VH of the transport device 34 is equal to or higher than the first set value VF1, the speed VF of the supply chain 12B is controlled to be calculated by the following Equation 2 as shown in the second state. speed.

Equation 2 VF=VF1+1.5~2.5×K×(V-V1)

Where K=(VH2-VH1)/(V2-V1)

Next, the control device 85 determines whether or not the speed VF of the supply chain 12B (the input value of the supply chain speed sensor 10S) is lower than the second set value VH2 of the transport device 34.

When it is determined that the speed VF of the supply chain 12B is lower than the second set value VH2 of the transport device 34, as shown in the second state, the speed VF of the supply chain 12B is controlled to the speed calculated by Equation 2.

On the other hand, when it is determined that the speed VF of the supply chain 12B is equal to or higher than the second set value VH2 of the transport device 34, the speed VF of the supply chain 12B is maintained at the second level as indicated by the third state. Set value (the third set value of the request item) VF2.

Further, when the traveling speed V of the traveling device 2 detected by the traveling speed sensor 66S exceeds the maximum speed V2 within a predetermined time range, it is preferable to operate by a monitor or the like disposed in front of the operating seat 6. Warning.

<Second driving method of supply chain>

Fig. 12 shows a second driving method of the speed VF of the supply chain 12B. The solid line indicates the speed VF of the supply chain 12B, and the broken line indicates the speed VH of the conveying device 34. The same members as those of the first driving method are denoted by the same reference numerals, and the description thereof will not be repeated.

First, the control device 85 determines that there is an input of the mode switch 6B, and when it is determined that there is no input of the mode switch 6B, the speed VF of the supply chain 12B in the first to third states described above is maintained.

On the other hand, when it is determined that the input of the mode switch 6B is present, the speed VF of the supply chain 12B is controlled to the speed calculated by the following Equation 3. Further, the speed VF of the supply chain 12B can be increased or decreased in the range of 10 to 20% by the speed dial 6A, and in the case where the grain stalk is placed on the supply chain 12B by manual operation, it is preferable to operate the speed control. The dial 6A accelerates the speed VF of the supply chain 12B.

Equation 3 VF=0.25~0.5×VH1

<First stop method of supply chain>

Fig. 13 shows a first stopping method of the supply chain 12B driven by the first driving method.

Starting from the upper side of Fig. 13, the first stage indicates the operation state of the stop switch 6D, and the second stage indicates the pivot 10F of the supply type hydraulic stepless transmission 10 for increasing and decreasing the rotational speed of the transmission to the supply chain 12B. The positional condition, the third segment represents the speed VF of the supply chain 12B. In addition, the fourth stage of FIG. 13 shows the driving state of the engine 62, and the lowermost stage shows the speed VH of the conveying device 34 provided in the harvesting device 4 driven in conjunction with the traveling device 2.

First, the control device 85 determines whether or not there is an input of the stop switch 6D. When it is determined that the input of the switch 6D is not stopped, the supply chain 12B is driven by the first driving method.

On the other hand, when it is determined that there is an input of the stop switch 6D, the first shift motor 10C connected to the pivot 10F of the hydraulic stepless transmission 10 of the supply chain is driven, and the rotational position of the pivot 10F is neutral. Position turn The rotation of the output shaft 10B of the hydraulic stepless transmission 10 of the supply chain is stopped. Thereby, the driving force to the supply chain 12B is cut off, and the rotation of the supply chain 12B is stopped.

When it is determined that there is an input of the stop switch 6D, the engine 62 is stopped and the rotation to the traveling hydraulic stepless transmission 66 is interrupted, and the conveyance device 2 and the conveyance device 4 are stopped. The rotation of the device 34.

In order to stop the supply chain 12B more quickly, it is preferable to rotate the pivot 10F beyond the neutral position and to rotate to a position slightly on the reverse side.

<Second stop method of supply chain>

Fig. 14 shows a second stopping method of the supply chain 12B driven by the second driving method. It is to be noted that the same members as those in the first stop method are denoted by the same reference numerals, and the description thereof will not be repeated.

First, the control device 85 determines whether or not there is an input of the stop switch 6D. When it is determined that the input of the switch 6D is not stopped, the supply chain 12B is driven by the second drive method.

On the other hand, when it is determined that there is an input of the stop switch 6D, the second shift motor 10E connected to the pivot 10F of the hydraulic stepless transmission 10 for the supply chain is driven to rotate the pivot 10F. The position is rotated to the neutral position, and the rotation of the output shaft 10B of the hydraulic chain type stepless transmission 10 of the supply chain is stopped. Thereby, the driving force to the supply chain 12B is cut off, and the rotation of the supply chain 12B is stopped.

When it is determined that there is an input of the stop switch 6D, the engine 62 is stopped and cut off to the traveling hydraulic type stepless speed change device 66. The rotation of the moving device 2 stops the rotation of the conveying device 34 provided on the harvesting device 4.

In order to make the supply chain 12B emergency stop, the second shift motor 10E is set such that the reduction ratio is larger than the first shift motor 10C used in the first stop method, and the pivot shaft 10F is rotated by the first shift motor 10C. The pivot 10F can be rotated at a high speed. Further, in order to stop the supply chain 12B more quickly, it is preferable to rotate the pivot shaft 10F beyond the neutral position to a position slightly closer to the reverse side, and the rotation sensor 68G detects that the rotation of the output shaft 10B is stopped and detects again. After the output shaft 10B is rotated, or the rotation of the output shaft 10B is detected again, after 1 to 2 seconds, the pivot 10F is rotated from the reverse side position to the neutral position.

In order to remove the grain stalk or the like that is clogged between the supply chain 12B and the gripping lever 12C, the reverse rotation switch 6C is operated to switch the rotation direction of the supply chain 12B. In this case, in order to prevent the reverse rotation of the unexpected supply chain 12B and improve the safety of the auxiliary worker, when the reverse switch 6C is operated only, the supply chain 12B is driven to be reversed, or the auxiliary worker is allowed to leave the combined harvesting. At the time of the machine, the reverse switch 6C is operated, and after 1 to 2 seconds, the supply chain 12B is driven to reverse, or to notify the surrounding co-operator of the reverse state of the supply chain 12B, preferably in the supply chain 12B. The alarm sounds when it is reversed.

Further, when the engine 62 is restarted after the operation stop switch 6D is stopped, the supply chain 12B, the engine 62, and the like are stopped, it is necessary to cancel the mode switch 6B and switch to the normal harvest mode.

Industrial availability

The present invention can be applied to agricultural work vehicles.

10‧‧‧Hydraulic stepless speed changer for supply chain (hydraulic stepless speed changer)

39‧‧‧ Gearbox

48‧‧‧Dust exhaust fan

52‧‧‧Shake screening device

55‧‧‧Processing cylinder

56‧‧‧Second processing cylinder

57‧‧‧Dust treatment cylinder

58‧‧‧Draining rice straw conveying device

59‧‧‧Exhaust rice straw cutting machine

62‧‧‧ Pull up device

65‧‧‧ axle

66‧‧‧Hydraulic stepless speed changer for driving

68‧‧‧ Gearbox

70‧‧‧ Output shaft

71‧‧‧Auxiliary shaft

90‧‧‧With

91‧‧‧With

92‧‧‧With

93‧‧‧With

94‧‧‧With

96‧‧‧With

97‧‧‧With

10A‧‧‧ input shaft

10D‧‧‧ Pulley

10S‧‧‧Supply chain speed sensor

12B‧‧‧Supply chain

17A‧‧‧Drive sprocket

34S‧‧‧Transport speed sensor

36A‧‧‧Transverse drive shaft

36B‧‧‧ Pulley

39A‧‧‧Draining spiral

39B‧‧‧Auger

53A‧‧‧First air sorter

53b‧‧‧One transfer spiral

53C‧‧‧Second air sorter

53d‧‧‧Second transfer spiral

65A‧‧‧ axle

65B‧‧‧ drive wheel

65C‧‧‧ Output shaft

65D‧‧‧Output pulley

65E‧‧‧ drive belt

65F‧‧‧Harvest clutch

66B‧‧‧ Pulley

66S‧‧‧Travel speed sensor

68A‧‧‧ Gears

68B‧‧‧ Output shaft

68C‧‧‧Coupling

68D‧‧‧ drive shaft

70A‧‧‧ Pulley

70B‧‧‧ Pulley

70C‧‧‧ Pulley

71A‧‧‧ Pulley

71B‧‧‧ Pulley

71C‧‧‧ Pulley

71D‧‧‧ Pulley

71E‧‧‧ Pulley

90A‧‧‧ threshing clutch

97A‧‧‧Drainage clutch

Claims (10)

A combine harvester comprising a harvesting device (4) at a front portion of a body having a traveling device (2), a threshing device (3) behind the harvesting device (4), and a left and right of the threshing device (3) One side is provided with a supply chain (12B) for transferring the grain stalks harvested by the harvesting device (4) and supplied to the threshing apparatus (3), and the combine is characterized in that it is provided not to drive the traveling device ( 2) the harvesting device (4) is a hydraulic stepless transmission (10) that drives the supply chain (12B), and a countershaft (71) in the left-right direction of the body is provided on the front side of the threshing device (3). An output shaft (70) of the engine (62) transmits power to an inner side portion of the sub-shaft (71), and an input shaft of the hydraulic stepless transmission (10) from an outer side portion of the sub-shaft (71) (10A) Passing power. The combine harvester according to claim 1 is configured to transmit power from the counter shaft (71) to the threshing device (3), and is provided from the output shaft (70) of the engine (62) to the counter shaft ( 71) Power transmission connection and disconnected threshing clutch (90A). The combine harvester according to claim 2 is configured to transmit power from the inner side of the body of the counter shaft (71) to the processing cylinder (55) provided on the threshing apparatus (3), from the above-mentioned sub The outer side of the body of the shaft (71) transmits power to the screening unit (51) provided on the threshing apparatus (3). The combine harvester according to claim 3, wherein the counter shaft (71) and the hydraulic stepless shifting device (10) are supported by the front wall (50A) of the threshing device (3). A combine harvester according to claim 4, wherein a harvesting support table (35) for supporting the harvesting device (4) is provided at a front portion of the body, and the harvesting support table (35) and the threshing are connected by a support frame (11B). The front wall (50A) of the device (3) supports the hydraulic stepless shifting device (10) on the support frame (11B). A combine harvester according to claim 5, wherein a gear case (68) including a second output shaft (68B) for driving the supply chain (12B) is attached to a right side portion of the support frame (11B), The hydraulic stepless speed change device (10) is attached to the left side portion of the above-described support frame (11B). The combine harvester according to the above-mentioned item 6 is configured such that the supply chain (12B) is rotatably supported to the outside of the machine body with the fixed shaft (35B) in the up-down direction as the center, and the supply chain is wound ( A coupling (68C) for connecting and disconnecting the second output shaft (68B) and the drive sprocket (17A) between the drive sprocket (17A) of 12B) and the second output shaft (68B) is provided When the supply chain (12B) is rotated to the outside of the machine body, the second output shaft (68B) is separated from the drive sprocket (17A), and the supply chain (12B) is rotated toward the inside of the machine body. Next, the second output shaft (68B) is connected to the drive sprocket (17A). The combine harvester according to any one of claims 1 to 7, further comprising a control device (85) capable of performing a supply chain transport speed (VF) of the supply chain (12B) The harvesting and conveying speed (VH) of the harvesting device (4) is synchronized, and the harvesting and threshing mode for shifting the hydraulic stepless transmission (10) and the supply chain conveying speed (VF) are maintained at a predetermined conveying speed. Manual mode. The combine harvester according to claim 8, wherein the control device (85), in the harvesting and threshing mode, when the harvesting conveyance speed (VH) is equal to or greater than a predetermined first set value (VH1), The ratio of the amount of change in the supply chain transport speed (VF) to the amount of change in the harvesting conveyance speed (VH) is set to be larger than the case where the harvesting conveyance speed (VH) is lower than the first set value (VH1). The combine harvester according to claim 9, wherein the control device (85) in the harvesting and threshing mode has a supply transport speed (VF) that is higher than the first set value (VH1) When (VH) is equal to or greater than the preset second set value (VH2), the supply chain transport speed (VF) is maintained at a predetermined third set value (VF2).