JP2017006087A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester constituted at a low cost by simplifying a power transmission structure of a threshing cylinder or a reaper part.SOLUTION: The combine harvester includes: a threshing cylinder input mechanism 90 for transmitting drive force of a counter shaft 73 to a threshing cylinder input shaft 72, where the threshing cylinder input mechanism 90 is disposed at one end in an engine 7 side of the counter shaft 73 to which the drive force from the engine 7 is transmitted; and a reaper input mechanism 100 for transmitting the drive force of the threshing cylinder input shaft 72 to a reaper input shaft 89, where the reaper input mechanism 100 is disposed at the other end of the counter shaft 73 in the opposite side of the one end in the engine 7 side where the threshing cylinder input mechanism 90 is disposed.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a combine equipped with a reaping part for reaping uncut cereal grains in a field and a threshing part for threshing grains of the harvested cereal grains.

  Conventionally, a traveling machine body having a traveling part and a driver seat, a cutting part having a cutting blade, a threshing part having a handling drum, a feeder house for supplying a harvested cereal to the threshing part from the cutting part, and an engine for driving each part And a grain sorting mechanism that sorts the threshing product of the threshing section, and there is a technique for continuously harvesting and threshing uncut cereal grains in the field (see Patent Documents 1 to 8). In addition, there is a technique for providing a counter shaft extending from the left and right sides of the threshing portion to the other side of the threshing so as to penetrate the threshing portion in the left and right direction through the lower portion of the handling cylinder, and above and above the counter shaft. There is a technique in which a handling cylinder input shaft arranged in the left-right direction of the traveling machine body is arranged in front of the cylinder (see Patent Documents 1 to 8). Furthermore, there is also a technique for removing the clogs and the like in the feeder house by rotating the harvesting part forward to harvest the grain culm in the field and by reversing the harvesting part (see Patent Document 2).

Japanese Utility Model Publication 2-49050 JP 2013-51932 A JP 61-104722 A Japanese Patent Laid-Open No. 11-266661 Japanese Patent No. 5492315 JP-A-2015-91259 Japanese Patent No. 5486446 JP 2013-240290 A

  In the prior arts disclosed in Patent Document 2 and Patent Documents 4 to 7, a handling cylinder input mechanism and a reaper are provided at the other end of the counter shaft (the left side of the traveling machine body) opposite to the one end part on the engine side (the right side of the traveling machine body). Since the input mechanism is arranged, many drive belts are concentrated on the other end of the counter shaft (the left side of the traveling machine), and the power transmission structure of the barrel or reaper cannot be simplified. There is. In the prior art disclosed in Patent Document 8, a handling cylinder input mechanism and a cutting input mechanism are arranged at one end of the counter shaft on the engine side (right side of the traveling machine body). The belts are concentrated and there is a problem that the power transmission structure of the handling cylinder or the cutting part cannot be simplified. In the prior art disclosed in Patent Document 2, since the cutting forward / reverse switching case is disposed on the cutting input shaft of the feeder house, there is a problem that the power transmission structure of the front rotor and the supply conveyor cannot be simplified. In the prior arts disclosed in Patent Documents 5 to 7, since the cutting input forward rotation mechanism and the cutting input reverse rotation mechanism are arranged separately on the left and right sides of the feeder house, the power transmission structure of the feeder input of the feeder house is simplified. There are problems such as being unable to do so. Note that the conventional structure using both the wind sorting tang shaft and the counter shaft has a problem that the rotational speed of the wind sorting tang cannot be easily changed.

  Therefore, the present invention seeks to provide a combine that has been improved by examining these current conditions.

  In order to achieve the object, the combine of the invention according to claim 1 includes a threshing portion provided with a handling drum, a traveling machine body equipped with an engine and a driving portion, and a cutting portion is provided in front of the threshing portion, The engine is disposed in the operating unit, and a counter shaft extending from the left and right sides of the threshing unit to the left and right sides of the threshing unit is provided so as to penetrate the threshing unit in the left-right direction through the lower part of the barrel. In a combine in which a cylinder input shaft arranged in a lateral direction of the traveling machine body is arranged above the counter shaft and in front of the cylinder, the cylinder that transmits the driving force of the counter shaft to the cylinder input shaft. A reaping mechanism that includes an input mechanism, the handling cylinder input mechanism is disposed at one end of the counter shaft to which the driving force from the engine is transmitted, and the driving force of the handling cylinder input shaft is transmitted to the cutting input shaft. With input mechanism, front The threshing drum input mechanism arranged engine side end portion is obtained by placing the cutting input mechanism to the other end of the counter shaft on the opposite side.

  A second aspect of the present invention is the combine according to the first aspect, further comprising a feeder house that supplies the harvested cereal to the threshing section, and a left-right-direction cutting input shaft that drives a supply conveyor in the feeder house. The driving force transmitted from the engine to the one end of the counter shaft on the engine side, from the other end of the counter shaft on the opposite side of the engine, through the cutting forward / reverse switching case or the front rotor, It is configured to transmit to the cutting input shaft.

  According to a third aspect of the present invention, there is provided the combine according to the second aspect, wherein the front rotor is pivotally supported by a front rotor shaft facing left and right, and the engine side end portion of the front rotor shaft is coupled to the cutting portion from the engine side. A driving force is transmitted, and a cutting forward / reverse rotation switching case is disposed on the left and right other end of the front rotor shaft opposite to the engine, and from the other end of the counter shaft on the opposite side of the engine. The driving force of the engine is transmitted to the cutting forward / reverse switching case.

  According to a fourth aspect of the present invention, in the combine according to the first aspect, a driving force input from the engine to one end of the counter shaft is provided with a left and right handling cylinder input shaft on the front side of the threshing portion. To the engine-side one end of the barrel input shaft, and the grain sorting mechanism for sorting the grain after threshing from the left and right other ends on the counter shaft opposite to the engine or the harvesting The driving force of the engine is transmitted to the part.

  The invention according to claim 5 is the combine according to claim 1, wherein a handle cylinder input shaft is provided on the front side of the threshing portion, the handle cylinder input shaft is arranged in the lateral direction of the traveling machine body, The handle cylinder is pivotally supported by the handle cylinder shaft to be arranged, and the driving force transmitted from the engine to the engine side one end portion of the counter shaft is transmitted to the engine side one end portion of the handle cylinder input shaft. A front end side of the handling cylinder shaft is connected to a left and right other end portion of the cylinder input shaft opposite to the engine via a bevel gear mechanism.

  According to the first aspect of the present invention, the threshing unit including the handling cylinder, the traveling machine body including the engine and the driving unit, the cutting unit is provided in front of the threshing unit, and the engine is provided in the driving unit. And a countershaft extending from the left and right sides of the threshing portion to the left and right sides of the threshing portion are provided so as to penetrate the threshing portion in the left-right direction through the lower part of the handling cylinder, above the countershaft, And, in a combine where a handling cylinder input shaft arranged in the left-right direction of the traveling machine body is arranged in front of the handling cylinder, a handling cylinder input mechanism that transmits the driving force of the counter shaft to the handling cylinder input shaft is provided, The handling cylinder input mechanism is disposed at one end of the counter shaft to which the driving force from the engine is transmitted, and a cutting input mechanism for transmitting the driving force of the handling cylinder input shaft to the cutting input shaft is provided, Air cylinder input mechanism is installed Since the cutting input mechanism is disposed at the other end of the counter shaft on the side opposite to the one end on the gin side, a drive belt can be distributed and arranged at both ends of the counter shaft, The power transmission structure of the part can be simplified and can be configured at low cost. In addition, by providing a counter shaft separately from the tang shaft for wind selection, the rotation speed of the tang for wind selection can be easily changed without considering the rotation speed of the barrel or cutting part, etc. It is possible to easily improve the performance.

  According to the invention described in claim 2, the feeder house for supplying the harvested cereal meal to the threshing section, and the left and right cutting input shaft for driving the supply conveyor in the feeder house, the counter shaft from the engine The driving force transmitted to the engine side one end of the engine is transmitted from the other end of the counter shaft on the side opposite to the engine to the cutting input shaft via the cutting forward / reverse switching case or the front rotor. Since it is comprised, the power transmission structure of a front rotor or the said cutting part (supply conveyor) can be simplified, and it can comprise at low cost. It is possible to quickly remove clogging at the feed start end of the feeder house (supply conveyor) or the handling port (front rotor) of the threshing unit.

  According to the invention described in claim 3, the front rotor is pivotally supported on the front rotor shaft facing left and right, and the driving force of the engine is transmitted from the one end portion on the engine side of the front rotor shaft to the cutting portion. A cutting forward / reverse switching case is disposed on the left and right other end of the front rotor shaft opposite to the engine, and a cutting forward / reverse switching case is provided from the other end of the counter shaft on the opposite side of the engine. Since it is configured to transmit the driving force of the engine, a power transmission structure for transmitting the cutting driving force from the engine to the cutting unit (supply conveyor) can be simplified and configured at low cost.

  According to the invention described in claim 4, a front and rear handling cylinder input shaft is provided on the front side of the threshing portion, and the driving force transmitted from the engine to the engine side one end of the counter shaft is transmitted to the handling cylinder input shaft. The engine driving force is applied to the grain sorting mechanism for sorting the grain after threshing from the other left and right ends opposite to the engine in the countershaft or to the reaping part. Therefore, it is possible to simplify the power transmission structure of the grain selection mechanism or the reaping part and to reduce the cost. A counter shaft can be provided separately from the tang shaft for wind selection, and the rotation speed of the tang for wind selection can be changed without considering the rotation speed of the handling cylinder or cutting part, etc. Can be improved.

  According to the invention described in claim 5, a handling cylinder input shaft is provided on the front side of the threshing portion, the handling cylinder input shaft is arranged in the lateral direction of the traveling machine body, and the handling cylinder shaft arranged in the longitudinal direction of the traveling machine body The driving cylinder is pivotally supported, and the driving force transmitted from the engine to the engine side one end of the counter shaft is transmitted to the engine side one end of the cylinder input shaft, and the engine in the cylinder input shaft and Is configured to connect the front end side of the barrel to the opposite left and right end portions via a bevel gear mechanism, so that the power transmission structure of the barrel can be simplified and the barrel input can be simplified. A handling cylinder drive case for arranging the shaft can be configured compactly, and can be configured at low cost.

It is a left view of the combine which shows 1st Embodiment of this invention. It is a right view of the combine. It is a top view of the combine. It is a perspective view of the threshing part seen from diagonally forward. It is a drive system figure of the combine. It is left side explanatory drawing of a threshing part. FIG. 7 is an enlarged explanatory view of FIG. 6. It is left side explanatory drawing of an engine part. FIG. 8 is an enlarged explanatory diagram of FIG. 7. It is a drive system diagram of the combine which shows 2nd Embodiment. It is a drive system diagram of the combine which shows 3rd Embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments embodying the present invention will be described with reference to the drawings (FIGS. 1 to 9) applied to an ordinary combine. 1 is a left side view of the combine, FIG. 2 is a right side view thereof, and FIG. 3 is a plan view thereof. First, the general structure of the combine will be described with reference to FIGS. In the following description, the left side in the forward direction of the traveling machine body 1 is simply referred to as the left side, and the right side in the forward direction is also simply referred to as the right side.

  As shown in FIGS. 1 to 3, the ordinary combine in the embodiment includes a traveling machine body 1 supported by a pair of left and right crawler belts 2 made of rubber crawlers as a traveling portion. At the front part of the traveling machine body 1, a mowing unit 3 for taking in unharmed cereals such as rice (or wheat, soybeans or corn) is mounted by a single-acting lifting hydraulic cylinder 4 so as to be adjustable up and down. ing.

  On the left side of the traveling machine body 1 is mounted a threshing unit 9 for threshing the harvested cereal meal supplied from the harvesting unit 3. In the lower part of the threshing unit 9, a grain sorting mechanism 10 for performing swing sorting and wind sorting is arranged. A driver's cab 5 on which an operator is boarded is mounted on the front right side of the traveling machine body 1. An engine 7 as a power source is disposed on the cab 5 (below the driver seat 42). Behind the cab 5 (on the right side of the traveling machine body 1), a grain tank 6 for taking the grain from the threshing unit 9 and a grain for discharging the grain in the grain tank 6 toward the truck bed (or container, etc.) A discharge conveyor 8 is arranged. The grain discharge conveyor 8 is tilted toward the outside of the machine so that the grains in the grain tank 6 are carried out by the grain discharge conveyor 8.

  The mowing unit 3 includes a feeder house 11 that communicates with the handling port 9 a at the front of the threshing unit 9, and a horizontally long bucket-shaped grain header 12 that is provided continuously at the front end of the feeder house 11. A scraping auger 13 (platform auger) is rotatably supported in the grain header 12. A take-up reel 14 with a tine bar is disposed above the front portion of the take-up auger 13. A clipper-shaped first cutting blade 15 is disposed in front of the grain header 12. Left and right weed bodies 16 are provided to project from the left and right sides of the front part of the grain header 12. In addition, a supply conveyor 17 is installed in the feeder house 11. A beater-feeding beater 18 (front rotor) is provided on the feed end side (handle 9a) of the supply conveyor 17. The lower surface portion of the feeder house 11 and the front end portion of the traveling machine body 1 are connected via a lifting hydraulic cylinder 4, and the cutting portion 3 moves up and down using a cutting input shaft 89 (feeder house conveyor shaft) described later as a lifting fulcrum. The hydraulic cylinder 4 is moved up and down.

  With the above configuration, the tip side of the uncut grain culm between the left and right weed bodies 16 is scraped by the scraping reel 14, and the base side of the uncut grain culm is cut by the first cutting blade 15. By the rotational drive of 13, the harvested cereal grains are collected near the entrance of the feeder house 11 near the center of the grain header 12 in the lateral width. The whole amount of the harvested cereal meal of the grain header 12 is conveyed by the supply conveyor 17 and is configured to be input to the handling port 9 a of the threshing unit 9 by the beater 18. The grain header 12 is provided with a horizontal control hydraulic cylinder (not shown) that rotates about the horizontal control fulcrum shaft, and the grain header 12 is adjusted by the horizontal control hydraulic cylinder to adjust the horizontal inclination of the grain header 12. 12 and the first cutting blade 15 and the take-up reel 14 can be supported horizontally with respect to the field scene.

  Moreover, as shown in FIG. 1, FIG. 3, the handling cylinder 21 is rotatably provided in the handling chamber of the threshing part 9. A handling cylinder 21 is pivotally supported on a handling cylinder shaft 20 extended in the front-rear direction of the traveling machine body 1. On the lower side of the handling cylinder 21, a receiving net 24 for allowing the grains to leak is stretched. In addition, a spiral screw blade-shaped intake blade 25 projects outward in the radial direction on the outer peripheral surface of the front portion of the handling cylinder 21.

  With the above-described configuration, the harvested cereal mash introduced from the handling port 9a by the beater 18 is conveyed toward the rear of the traveling machine body 1 by the rotation of the handling cylinder 21 and is, for example, between the handling cylinder 21 and the receiving net 24. Kneaded and threshed. The threshing of grains or the like smaller than the mesh of the receiving net 24 leaks from the receiving net 24. The sawdust and the like that do not leak from the receiving net 24 are discharged from the dust outlet 23 at the rear of the threshing portion 9 to the field by the conveying action of the handling cylinder 21.

  A plurality of dust feed valves (not shown) for adjusting the conveying speed of shed grains in the handling chamber are pivotally mounted on the upper side of the handling cylinder 21 so as to be rotatable. By adjusting the angle of the dust feed valve, the conveying speed (residence time) of threshing in the handling chamber can be adjusted according to the variety and properties of the harvested cereal. On the other hand, the grain sorting mechanism 10 disposed below the threshing unit 9 includes a rocking sorter 26 for specific gravity sorting having a grain pan, a chaff sheave, a grain sheave, a Strollac, and the like.

  Further, as the grain sorting mechanism 10, a blower fan-shaped tongue 29 for supplying sorting wind to the swing sorting board 26 is provided. The threshing that has been threshed by the handling cylinder 21 and leaked from the receiving net 24 is caused by the specific gravity sorting action of the swing sorter 26 and the wind sorting action of the blower fan-shaped tang 29, so No.), a mixture of grain and straw (second thing such as grain with branches), and wastes are selected and extracted.

  A first conveyor mechanism 30 and a second conveyor mechanism 31 are provided on the lower side of the swing sorter 26 as the grain sorting mechanism 10. The grain (first thing) dropped from the swing sorter 26 by the sorting of the swing sorter 26 and the blower fan-shaped tongue 29 is collected in the grain tank 6 by the first conveyor mechanism 30 and the cereal conveyor 32. The The mixture of grains and straw (second product) is returned to the sorting start end side of the swing sorting plate 26 through the second conveyor mechanism 31 and the second reduction conveyor 33 and is re-sorted by the swing sorting plate 26. The The sawdust and the like are configured to be discharged from the dust outlet 23 at the rear of the traveling machine body 1 to the field.

  Further, as shown in FIGS. 1 to 3, the cab 5 is provided with a control column 41 and a driver seat 42 on which an operator sits. The steering column 41 includes an accelerator lever 40 that adjusts the rotational speed of the engine 5, a control lever 43 that changes the course of the traveling machine body 1, a main transmission lever 44 and a sub-transmission lever 45 that switch the moving speed of the traveling machine body 1, A cutting clutch lever 46 for driving or stopping the cutting unit 3 and a threshing clutch lever 47 for driving or stopping the threshing unit 9 are arranged. A sunshade roof body 49 is attached to the front upper surface side of the Glen tank 6 via a sun visor support 48 so that the sunshade roof body 49 covers the upper side of the cab 5.

  As shown in FIGS. 1 and 2, left and right track frames 50 are arranged on the lower surface side of the traveling machine body 1. The track frame 50 includes a drive sprocket 51 that transmits the power of the engine 7 to the crawler belt 2, a tension roller 52 that maintains the tension of the crawler belt 2, a plurality of track rollers 53 that hold the ground side of the crawler belt 2 in a grounded state, An intermediate roller 54 that holds the non-grounding side of the crawler belt 2 is provided. The front side of the crawler belt 2 is supported by the drive sprocket 51, the rear side of the crawler belt 2 is supported by the tension roller 23, the ground side of the crawler belt 2 is supported by the track roller 53, and the non-ground side of the crawler belt 2 is supported by the intermediate roller 54 To be configured.

  Next, the drive structure of the combine will be described with reference to FIGS. As shown in FIG. 5, a transmission hydraulic linearly variable continuously variable transmission 64 having a traveling hydraulic pump and a hydraulic motor (not shown) is provided in the mission case 63. The engine 7 is mounted on the upper right side of the front part of the traveling machine body 1, and the mission case 63 is arranged on the front part of the traveling machine body 1 on the left side of the engine 7. An output shaft 65 protruding leftward from the engine 7 and a mission input shaft 66 protruding leftward from the mission case 63 are connected via an engine output belt 67. In addition, a charge pump 68 that drives the lifting hydraulic cylinder 4 and the like and a cooling fan 69 are arranged in the engine 7, and the charge pump 68 and the cooling fan 69 are driven by the engine 7.

  Further, a steering swing hydraulic continuously variable transmission 70 having a traveling hydraulic pump and a hydraulic motor (not shown) is provided in the mission case 63, and a straight hydraulic continuously variable transmission 64 and a swing hydraulic continuously variable transmission are connected via a mission input shaft 66. While the engine 7 output is transmitted to 70, the output of the straight hydraulic continuously variable transmission 64 and the turning hydraulic continuously variable transmission 70 is controlled by the control lever 43, the main transmission lever 44 and the sub transmission lever 45, and the straight hydraulic continuously variable The left and right crawler belts 2 are driven via the transmission 64 and the turning hydraulic continuously variable transmission 70 to travel and move in the field.

  Furthermore, as shown in FIGS. 4 to 9, a handling cylinder drive case 71 that pivotally supports the front end side of the handling cylinder shaft 20 is provided. A barrel driving case 71 is disposed on the front side of the threshing unit 9. A handling cylinder input shaft 72 for driving the cutting unit 3 and the handling cylinder 21 is supported by a handling cylinder drive case 71. Moreover, the counter shaft 73 penetrated in the right and left of the threshing part 9 is provided. A working unit input pulley 83 is provided at the right end of the counter shaft 73. The right end portion of the counter shaft 73 is connected to the output shaft 65 of the engine 7 via a threshing clutch 84 that also serves as a tension roller and a working unit drive belt 85.

  As shown in FIGS. 4 to 9, the threshing machine housing column 34 is erected on the upper surface side of the front part of the threshing unit 9 among the upper surface side of the traveling machine body 1, and the middle of the threshing machine housing column 34 provided on the front side of the threshing unit 9. The counter bearing body 35 is provided in the portion. A counter shaft 73 is rotatably supported on the counter bearing body 35. A counter shaft 73 is arranged in the left-right direction of the traveling machine body 1. That is, the engine 7 is arranged on the cab 5 as an operation unit, and the countershaft 73 extending from the left and right sides of the threshing unit 9 to the other side of the threshing portion 9 passes through the lower part of the handling cylinder 21 and moves the threshing unit 9 left and right. It is provided so as to penetrate in the direction. Further, a handling cylinder input shaft 72 extending in the left-right direction of the traveling machine body 1 is disposed above the counter shaft 73 and in front of the handling cylinder 21.

  In addition, the cylinder input mechanism 90 that transmits the driving force of the counter shaft 73 to the cylinder input shaft 72 includes cylinder driving pulleys 86 and 87 and a cylinder driving belt 88, and the driving force from the engine 7 is transmitted. A cylinder input mechanism 90 (cylinder driving pulleys 86 and 87 and a cylinder driving belt 88) is disposed at one end of the counter shaft 73 on the engine 7 side. Further, the cutting input mechanism 100 that transmits the driving force of the barrel input shaft 72 to the cutting input shaft 89 includes the cutting drive pulleys 106 and 107 and the cutting drive belt 114, and the engine 7 side on which the barrel input mechanism 90 is disposed. The cutting input mechanism 100 (the cutting drive pulleys 106 and 107 and the cutting drive belt 114) is disposed at the other end of the counter shaft 73 on the side opposite to the one end.

  Further, as shown in FIG. 7, a cutting support frame body 36 is installed on the upper surface side of the front part of the threshing machine housing column 34 on the upper surface side of the traveling machine body 1. A cutting input shaft 89 is pivotally supported on the front side of the cutting support frame 36 via the cutting bearing body 37 in the left-right direction of the traveling machine body 1, and at the inside of the cutting support frame 36 via a beater shaft 82. The beater 18 is rotatably supported. Further, the forward / reverse switching case 121 is attached to the left outer surface of the cutting support frame 36, and the barrel driving case 71 is attached to the upper surface side of the cutting support frame 36.

  On the other hand, a cutting input shaft 89 facing left and right for driving the supply conveyor 17 in the feeder house 11 is provided. The cutting drive force transmitted from the engine 7 to one end of the counter shaft 73 on the engine 7 side is transferred from the other end of the counter shaft 73 opposite to the engine 7 to the forward / reverse transmission shaft 122 of the cutting forward / reverse switching case 121. To communicate. The beater shaft 82 is driven via the forward bevel gear 124 or the reverse bevel gear 125 of the cutting forward / reverse switching case 121. Further, the cutting drive force is transmitted to the cutting input shaft 89 from the beater shaft 82 on which the beater 18 is pivotally supported.

  That is, as shown in FIGS. 4 to 9, the beater 18 is pivotally supported on the beater shaft 82 facing left and right, and the driving force of the engine 7 is transmitted from the one end of the beater shaft 82 to the cutting portion 3. The cutting forward / reverse rotation switching case 121 is disposed on the left and right other end of the beater shaft 82 opposite to the engine 7, and the cutting forward / reverse switching case is provided from the other end of the counter shaft 73 on the opposite side of the engine 7. The driving force of the engine 7 is transmitted to 121.

  Moreover, as shown in FIGS. 4 to 9, a handling cylinder input shaft 72 facing left and right is provided on the front side of the threshing section 9, and the driving force transmitted from the engine 7 to one end of the counter shaft 73 on the engine 7 side is used as the handling cylinder input. The shaft 72 is transmitted to one end portion on the engine 7 side, and a barrel input shaft 72 is provided on the front side of the threshing portion 9. The barrel input shaft 72 is disposed in the lateral direction of the traveling machine body 1, and is disposed in the longitudinal direction of the traveling machine body 1. The handle cylinder 21 is pivotally supported on the handle cylinder shaft 20 and the front end side of the handle cylinder shaft 20 is connected to the left and right other ends of the handle cylinder input shaft 72 opposite to the engine 7 via a bevel gear mechanism 75. The driving force of the engine 7 is transmitted from the other left and right end portions of the counter shaft 73 opposite to the engine 7 to the grain sorting mechanism 10 that sorts the grain after threshing or the cutting unit 3.

  The right end of the barrel input shaft 72 is connected to the right end of the counter shaft 73 on the side close to the engine 7 via the barrel driving pulleys 86 and 87 and the barrel driving belt 88. A front end side of the handling cylinder shaft 20 is connected to a left end portion of the handling cylinder input shaft 72 extending in the left-right direction via a bevel gear mechanism 75. The power of the engine 7 is transmitted from the right end portion of the counter shaft 73 to the front end side of the barrel shaft 20 via the barrel input shaft 72, and the barrel 21 is rotationally driven in one direction. On the other hand, the left end portion of the counter shaft 73 on the side away from the engine 7 is connected to the left end portion of the hot shaft 76 on which the blower fan-shaped hot spring 29 is pivoted, via the hot drive pulleys 101 and 102 and the hot drive belt 103. Are connected. The power of the engine 7 is transmitted from the left end portion of the counter shaft 73 to the left end portion of the tang shaft 76, and the tang 29 is rotated in one direction.

  Furthermore, the left end of the Karatsu shaft 76 is connected to the left end of the first conveyor shaft 77 of the first conveyor mechanism 30 and the left end of the second conveyor shaft 78 of the second conveyor mechanism 31 via the conveyor drive belt 111. The parts are connected. The left end portion of the second conveyor shaft 78 is connected to the left end portion of the crank-shaped swing drive shaft 79 pivotally supported by the rear portion of the swing sorting plate 26 via the swing sorting belt 112. That is, the threshing clutch 84 is controlled to be turned on and off by the operation of the threshing clutch lever 47 by the operator. Each part of the grain sorting mechanism 10 and the handling cylinder 21 are driven by an operation of turning on the threshing clutch 84.

  The cereal conveyor 32 is driven via the first conveyor shaft 77, and the first selected grain of the first conveyor mechanism 30 is collected in the glen tank 6. The second reduction conveyor 33 is driven via the second conveyor shaft 78, and the second selected grain (second product) mixed with the sawdust from the second conveyor mechanism 31 is moved to the upper side of the swing sorter 26. Returned to Further, in a structure in which a dust spreader spreader (not shown) is provided in the dust outlet 23, the left end portion of the Karatsu shaft 76 is connected to the spreader via the spreader drive pulley 104 and the spreader drive belt 105.

  On the other hand, a beater shaft 82 that pivotally supports the beater 18 is provided. A forward / reverse switching case 121 is arranged at the left end of the beater shaft 82 on the side away from the engine 7. A forward / reverse transmission shaft 122 and a forward / reverse switching shaft 123 are provided in the forward / reverse switching case 121 while the left end of the beater shaft 82 is inserted into the forward / reverse switching case 121. The beater shaft 82 and the forward / reverse transmission shaft 122 are arranged on substantially the same axis. The left end portion of the forward / reverse transmission shaft 122 is connected to the left end portion of the counter shaft 73 via the mowing drive pulleys 106 and 107, the mowing drive belt 114, and the mowing clutch 115 (tension pulley).

  As shown in FIG. 5, a cutting input shaft 89 is provided as a conveyor input shaft that pivotally supports the feed terminal side of the supply conveyor 17. A header drive shaft 91 is rotatably supported on the right side rear side of the grain header 12. The header drive shaft 91 extended in the left-right direction via the cutting drive chain 116 and the sprockets 117, 118, and 119 on the beater shaft 82, the right end of the beater shaft 82, and the right side of the cutting input shaft 89 Connect the ends. A scraping shaft 93 that pivotally supports the scraping auger 13 is provided. An intermediate portion of the header drive shaft 91 is connected to the right end portion of the drive shaft 93 via a drive drive chain 92.

  A reel shaft 94 that pivotally supports the take-up reel 14 is also provided. The intermediate portion of the header drive shaft 91 is connected to the right end portion of the reel shaft 94 via an intermediate shaft 95 and reel drive chains 96 and 97. The first cutting blade 15 is connected to the right end portion of the header drive shaft 91 via a first cutting blade drive crank mechanism 98. By the turning-on / off operation of the cutting clutch 242, the feed conveyor 17, the auger 13, the take-up reel 14, and the first cutting blade 15 are driven and controlled, and the tip side of the uncut grain culm in the field is continuously cut. It is configured to take.

  As shown in FIG. 5, the forward rotation bevel gear 124 integrally formed with the forward / reverse transmission shaft 122, the reverse rotation bevel gear 125 rotatably supported on the cutting input shaft 89, and the reverse rotation bevel gear 125 are connected to the forward rotation bevel gear 124. An intermediate bevel gear 126 is installed in the forward / reverse switching case 121. The intermediate bevel gear 126 is always meshed with the forward bevel gear 124 and the reverse bevel gear 125. On the other hand, a slider 127 is slidably supported on the beater shaft 82 by a spline engagement shaft. The slider 127 is configured to be detachably engageable with the forward rotation bevel gear 124 via the claw clutch-shaped forward rotation clutch 128, and the slider 127 is engaged with the reverse rotation bevel gear 125 via the claw clutch-shaped reverse rotation clutch 129. It is configured to be detachably engageable.

  Further, the forward / reverse switching shaft 123 for sliding the slider 127 is provided, and the forward / reverse switching arm 130 is provided on the forward / reverse switching shaft 123, and the forward / reverse switching arm 130 is operated by operating the forward / reverse switching lever 212 (forward / reverse operation tool). , The forward / reverse switching shaft 123 is rotated, the slider 127 is brought into and out of contact with the forward bevel gear 124 or the reverse bevel gear 125, and the forward bevel gear 124 or the reverse rotation via the forward clutch 128 or the reverse clutch 129. The slider 127 is selectively locked to the bevel gear 125, and the cutting input shaft 89 is connected to the forward / reverse transmission shaft 122 in the forward rotation connection or the reverse rotation connection.

  As shown in FIG. 5, the right end portion of the auger drive shaft 58 is connected to the output shaft 65 of the engine 7 via an auger clutch 56 and an auger drive belt 57 each having a tension pulley shape. The front end side of the lateral feed auger 60 at the bottom of the Glen tank 6 is connected to the left end portion of the auger drive shaft 58 via a bevel gear mechanism 59. A vertical feed auger 62 of the grain discharge conveyor 8 is connected to the rear end side of the horizontal feed auger 60 via a bevel gear mechanism 61. Moreover, the grain discharge lever 55 which turns on and off the auger clutch 56 is provided. A grain discharge lever 55 is attached to the front surface of the Glen tank 6 behind the driver seat 42 so that the operator can operate the grain discharge lever 55 from the driver seat 42 side.

  As shown in FIGS. 1, 2, and 4, a clipper-shaped second cutting blade 133 having substantially the same length as the first clipper-shaped cutting blade is provided. In addition, a left frame 134, a right frame 135, and a center frame 136 are provided as second cutting blade frames for mounting the second cutting blade 133 on the traveling machine body 1. A second cutting blade base 137 is fixed to the front end side of the left frame 134, the right frame 135, and the center frame 136, thereby constituting a second cutting blade mechanism 132.

  Left and right grounding housings 138 are provided at both ends of the second cutting blade base 137. The 2nd cutting blade 133 is attached between the left and right grounding housings 138 of the 2nd cutting blade base 137 so that reciprocation is possible. On the other hand, the base end side of the right frame 135 is rotatably supported on the cab frame of the traveling machine body 1 via the right bearing body. Further, the base end side of the central frame 136 is rotatably supported on the front frame of the traveling machine body 1 via the support frame body 140.

  As shown in FIG. 5, a second blade driving mechanism 171 that transmits a driving force from the forward / reverse switching case 121 to the second blade 133 is provided. The second cutting blade drive mechanism 171 includes a second cutting blade drive shaft 172 that transmits a driving force to the second cutting blade 133, and an eccentric rotation shaft 174 that is connected to the second cutting blade drive shaft 172 via the bevel gear mechanism 173. The second cutting blade drive crank mechanism 175 is connected to the eccentric rotation shaft 174. One end side of the second cutting blade drive shaft 172 is inserted into the forward / reverse switching case 121, the intermediate bevel gear 126 is engaged with the second cutting blade drive shaft 172, and forward / reverse transmission is transmitted via the intermediate bevel gear 126. A second cutting blade drive shaft 172 is connected to the shaft 122.

  The second blade driving crank mechanism 175 includes an eccentric rotating body 177 provided on the eccentric rotating shaft 174, a swing rotating shaft 178 connected to the eccentric rotating body 177, and a swing driving arm 179 connected to the swing rotating shaft 178. The push-pull rod 180 that connects the second cutting blade 133 to the swing drive arm 179 is provided. Instead of the second cutting blade drive shaft 172 and the bevel gear mechanism 173, a pair of sprockets and a transmission chain for connecting the eccentric rotation shaft 174 to the forward / reverse transmission shaft 122 are provided, and forward / reverse rotation is performed via the sprocket and the transmission chain. The second cutting blade 133 driving force may be transmitted from the transmission shaft 122 to the second cutting blade driving crank mechanism 175.

  With the above configuration, the one-way rotation of the eccentric rotation shaft 174 is converted into the swing rotation of the swing rotation shaft 178 (reciprocating rotation that rotates forward and backward within a certain range), and the swing drive arm 179 is swung. The second cutting blade 133 is slid back and forth through the push-pull rod 180, and the residue (the side of the culm stock) immediately after being cut by the first cutting blade 15 is removed by the second cutting blade 133. It is configured to cut and reduce the height of the stock that remains in the field.

  Further, a cylindrical transmission frame 181 in which the second cutting blade drive shaft 172 is provided and a square box-shaped bevel gear case 182 in which the bevel gear mechanism 173 is provided are provided. One end side of the transmission frame 181 is detachably fastened to the forward / reverse switching case 121, and a bevel gear case 182 is detachably fastened to the other end side of the transmission frame 181. That is, the left frame 134 is supported on the forward / reverse switching case 121 via the eccentric rotating shaft 174, the bevel gear case 182, and the transmission frame 181. The second blade driving crank mechanism 175 is disposed in a second blade driving cover 185 that is detachably supported on the left frame 134.

  With the above configuration, the cutting unit 3 is driven by the operation of engaging the cutting clutch 115, whereby the second cutting blade 133 is operated together with the first cutting blade 15, and the tip of the uncut grain culm in the field by the first cutting blade 15. The side is cut off, the tip side of the grain pod is brought into the threshing unit 9 from the feeder house 11, and the grain is taken out from the grain sorting mechanism 10 to the grain tank 6. On the other hand, the stumps (residues) remaining on the traces of the cereal crops harvested by the first cutting blade 15 are appropriately cut at the height by the second cutting blades 133, and the stumps remaining on the field after the harvesting work (stock sources) ) Are aligned to a substantially constant height. By reducing the height of the stumps remaining in the field after the harvesting work, the post-treatment work (cultivation work, etc.) of the field can be improved.

  Next, with reference to FIG. 10, the drive structure of the combine (threshing part 9) which shows 2nd Embodiment is demonstrated. As shown in FIG. 10, a red shaft 76 is connected to the counter shaft 73 via a continuously variable transmission belt mechanism 221. The continuously variable transmission belt mechanism 221 includes continuously variable transmission pulleys 222 and 223 and a continuously variable transmission belt 224. Depending on the amount of swarf (dust) falling from the lower side of the barrel 21 to the grain sorting mechanism 10 or the sorting situation such as the wetness of the cereal, the operation of a governor lever (not shown) 29) The rotational speed of 29) is increased or decreased to change the selection air volume (selection air speed) of the tang 29, so that the selection performance of the grain selection mechanism 10 can be maintained within an appropriate range. In this case, the first conveyor shaft 77, the second conveyor shaft 78, and the sorting drive shaft 79 are connected to the counter shaft 73 via the conveyor drive belt 111, and the spreader drive belt 105 is connected to the counter shaft 73 via the spreader drive pulley 104. Regardless of the change in the rotation speed of the carp 29, the rotation speeds of the swing sorter 26, the first conveyor 30, the second conveyor 31 and the like are always maintained constant. ing.

  Next, with reference to FIG. 11, the drive structure of the combine (threshing part 9) which shows 3rd Embodiment is demonstrated. As shown in FIG. 11, a tang shaft 76 is connected to the counter shaft 73 via a constant speed rotating belt mechanism 231. Via the constant speed rotating belt mechanism 231, the power of the engine 7 is transmitted from the right end portion of the counter shaft 73 close to the engine 7 to the right end portion of the Karatsu shaft 76. Similar to the drive structure of the carp 29 shown in FIG. 5, the constant speed rotating belt mechanism 231 has a carrot driving belt 103 with the carrot driving pulleys 101 and 102 for constant speed rotation. The carp 29 is configured to rotate at a constant speed in one direction.

  Further, as shown in FIG. 11, a sorting input shaft 232 that is rotatably supported on the same axis as the rod shaft 76 is provided, and the sorting input shaft 232 is provided at the left end of the rod shaft 76 on the side away from the engine 7. Deploy. The left end portion of the counter shaft 73 on the side away from the engine 7 is connected to the selection input shaft 232 via the selection drive pulleys 233 and 234 and the selection drive belt 235. On the other hand, a conveyor drive belt is attached to the left end of the first conveyor shaft 77 of the first conveyor mechanism 30, the left end of the second conveyor shaft 78 of the second conveyor mechanism 31, and the left end of the swing drive shaft 79. A sorting input shaft 232 is connected to the grain sorting mechanism 10 via the sorting input shaft 232.

  In other words, the tang 29 is driven independently through the constant speed rotating belt mechanism 231 and the swing sorter is selected according to the type or property of the harvested crop (rice, wheat, rapeseed, beans, corn, etc.). 26, the first conveyor mechanism 30 or the second conveyor mechanism 31 can be driven regardless of the drive speed. On the other hand, the driving speed of the swing sorter 26 or the first conveyor mechanism 30 or the second conveyor mechanism 31 can be set regardless of the driving speed of the carp 29. The driving speed of the grain sorting mechanism 10 can be appropriately maintained according to the type or nature of the harvested crop (rice, wheat, rapeseed, beans, corn, etc.), and the sorting performance of the grain sorting mechanism 10 can be improved.

  As shown in FIG. 1 to FIG. 9, a threshing unit 9 having a handling cylinder 21, a traveling machine body 1 on which an engine 7 and a cab 5 as a driving unit are mounted, and a reaping unit 3 at the front of the threshing unit 9 are provided. The engine 7 is disposed on the cab 5 and the countershaft 73 extending from the left and right sides of the threshing portion 9 to the other side of the threshing portion 9 passes through the lower portion of the handling cylinder 21 and penetrates the threshing portion 9 in the left-right direction. Provided, in the combine in which the handling cylinder input shaft 72 arranged in the left-right direction of the traveling machine body 1 is arranged above the counter shaft 73 and in front of the handling cylinder 21, the counter shaft 73 is driven by the handling cylinder input shaft 72. A handling cylinder input mechanism 90 for transmitting force is provided, and the handling cylinder input mechanism 90 is disposed at one end of the counter shaft 73 to which the driving force from the engine 7 is transmitted. Is input to the cutting input shaft 89. Provided, it is arranged an input mechanism 100 reaper the other end of the counter shaft 73 on the side opposite to the engine 7 side end portion thresher input mechanism 90 is arranged. Accordingly, it is possible to disperse the drive belts (the working unit drive belt 85, the handling cylinder driving belt 88, and the cutting drive belt 114) at both ends of the counter shaft 73, and to simplify the power transmission structure of the handling cylinder 21 or the cutting unit 3. Can be configured at low cost. In addition, by providing the counter shaft 73 separately from the wind sorting rod 76, the rotation speed of the wind sorting tongue 29 can be easily changed without considering the rotation speed of the handling cylinder 21 or the cutting unit 3. It is possible to easily improve the grain sorting performance.

  As shown in FIG. 4 to FIG. 9, a feeder house 11 that supplies the harvested cereal meal to the threshing unit 9, and a left and right cutting input shaft 89 that drives the supply conveyor 17 in the feeder house 11 are provided. The driving force transmitted to one end of the engine 7 side in 73 is cut from the other end of the counter shaft 73 on the side opposite to the engine 7 via the cutting forward / reverse switching case 121 or the front rotor (beater 18). It is configured to be transmitted to the input shaft 89. Therefore, the power transmission structure of the beater 18 or the cutting unit 3 (supply conveyor 17) as a front rotor can be simplified and can be configured at low cost. It is possible to quickly remove clogs at the feed start end of the feeder house 11 (feed conveyor 17) or the handling port 9a (beater 18) of the threshing unit 9.

  As shown in FIGS. 4 to 9, the beater 18 is pivotally supported on a beater shaft 82 as a front rotor shaft facing left and right, and the driving force of the engine 7 is transmitted from one end of the beater shaft 82 to the cutting unit 3. At the same time, the cutting forward / reverse rotation switching case 121 is disposed at the left and right other end opposite to the engine 7 in the beater shaft 82, and the cutting forward / reverse switching is performed from the other end of the counter shaft 73 opposite to the engine 7. The case 121 is configured to transmit the driving force of the engine 7 to the case 121. Therefore, the power transmission structure for transmitting the cutting driving force from the engine 7 to the cutting unit 3 (supply conveyor 17) can be simplified and can be configured at low cost.

  As shown in FIGS. 4 to 9, a handling cylinder input shaft 72 facing left and right is provided on the front side of the threshing section 9, and the driving force transmitted from the engine 7 to one end of the counter shaft 73 on the engine 7 side is used as the handling cylinder input shaft 72. Is transmitted to the engine 7 side one end portion of the counter 7 and the counter shaft 73 on the opposite side from the engine 7 to the grain sorting mechanism 10 or the reaping portion 3 for sorting the grain after threshing. The driving force is transmitted. Therefore, the power transmission structure of the grain sorting mechanism 10 or the cutting unit 3 can be simplified and can be configured at low cost. A counter shaft 73 can be provided separately from the wind sorting shaft 76 for wind sorting, and the rotation speed of the wind sorting rice cake 29 can be changed without considering the rotation speed of the handling cylinder 21 or the cutting part 3, etc. Sorting performance can be improved easily.

  As shown in FIGS. 4 to 9, a handling cylinder input shaft 72 is provided on the front side of the threshing portion 9, the handling cylinder input shaft 72 is arranged in the lateral direction of the traveling machine body 1, and the handling cylinder shaft 20 arranged in the longitudinal direction of the traveling machine body 1. The driving force transmitted from the engine 7 to the engine 7 side one end portion of the counter shaft 73 from the engine 7 is transmitted to the engine 7 side one end portion of the handling cylinder input shaft 72, and at the handling cylinder input shaft 72. The front end side of the cylinder barrel 20 is connected to the left and right other ends opposite to the engine 7 via a bevel gear mechanism 75. Therefore, the power transmission structure of the handling cylinder 21 can be simplified, and the handling cylinder drive case 71 for arranging the handling cylinder input shaft 72 can be configured compactly and can be configured at low cost.

1 traveling machine body 3 mowing part 5 cab (operating part)
7 Engine 9 Threshing section 10 Grain sorting mechanism 11 Feeder house 17 Supply conveyor 18 Beater (front rotor)
20 Handle cylinder 21 Handle cylinder 72 Handle cylinder input shaft 73 Counter shaft 75 Bevel gear mechanism 82 Beater shaft (front rotor shaft)
89 Cutting input shaft 90 Handle input mechanism 100 Cutting input mechanism 121 Forward / reverse switching case

Claims (5)

A threshing unit provided with a handling cylinder; a traveling machine body equipped with an engine and an operation unit; a cutting unit provided at a front part of the threshing unit; the engine is disposed in the operation unit; A countershaft extending from the left side to the left and right sides is provided so as to pass through the threshing portion in the left-right direction through the lower side of the handling cylinder, and above the countershaft and in front of the handling cylinder. In the combine where the handling cylinder input shaft arranged in the left-right direction is arranged,
A handling cylinder input mechanism for transmitting the driving force of the counter shaft to the handling cylinder input shaft is provided, and the handling cylinder input mechanism is disposed at one end of the counter shaft to which the driving force from the engine is transmitted, A cutting input mechanism that transmits the driving force of the barrel input shaft to the cutting input shaft, and the cutting shaft is disposed at the other end of the counter shaft on the opposite side of the engine-side one end where the barrel input mechanism is disposed; A combine characterized by an input mechanism.   A driving force transmitted from the engine to one end of the counter shaft on the engine side, including a feeder house that supplies the threshing portion to the threshing portion, and a left and right cutting input shaft that drives a supply conveyor in the feeder house. 2 is transmitted from the other end of the countershaft opposite to the engine to the cutting input shaft through a cutting forward / reverse switching case or a front rotor. Combine as described.   The front rotor is pivotally supported on a left-right front rotor shaft, and the driving force of the engine is transmitted from the one end portion on the engine side of the front rotor shaft to the cutting portion, and the front rotor shaft is opposite to the engine. The cutting forward / reverse rotation switching case is arranged at the other left and right end portions, and the driving force of the engine is transmitted from the other end portion of the counter shaft on the opposite side to the engine to the cutting forward / reverse rotation switching case. The combine according to claim 2.   The threshing unit is provided with a left and right handling cylinder input shaft, and the driving force transmitted from the engine to the engine side one end of the counter shaft is transmitted to the engine side one end of the handling cylinder input shaft. The counter shaft is configured to transmit the driving force of the engine to the grain selection mechanism for selecting the grain after threshing or the reaping part from the left and right other ends opposite to the engine. The combine according to claim 1.   A handling cylinder input shaft is provided on the front side of the threshing portion, the handling cylinder input shaft is arranged in the lateral direction of the traveling machine body, the handling cylinder is pivotally supported on the handling cylinder axis arranged in the longitudinal direction of the traveling machine body, and the engine The driving force transmitted to the engine side one end portion of the counter shaft is transmitted to the engine side one end portion of the handling cylinder input shaft, and bevel gears are provided to the left and right other end portions on the opposite side of the handling cylinder input shaft from the engine. The combine according to claim 1, wherein the combiner is configured to connect the front end side of the handling cylinder shaft through a mechanism.

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