JP5998678B2 - Combine - Google Patents

Description

  The present invention relates to a combine equipped with a feed chain for supplying cereal meal to a threshing apparatus.

  Conventionally, in order to simplify the assembly transmission mechanism and facilitate assembly, a transmission mechanism is provided which branches into a transmission path for transmitting the rotation of the engine to the traveling device and a transmission path for transmission to the reaping device and the threshing device (patented) Document 1), a transmission mechanism (Patent Document 2) that branches into a transmission path that transmits the rotation of the engine to the traveling device and the reaping device and a transmission path that transmits to the threshing device has been proposed.

Japanese Patent Laid-Open No. 5-199812 Japanese Patent Laid-Open No. 11-253039

  However, in the transmission mechanism of Patent Document 1, since the rotation transmitted to the feed chain that supplies the cereal to the reaping device and the threshing device is output from a common hydraulic continuously variable transmission, the drive speed of the feed chain Cannot be set independently with respect to the driving speed of the reaping device, and the supply rate of the cereal to the threshing device cannot be optimized.

  Further, the transmission mechanism of Patent Document 2 does not include a configuration that changes the conveyance speed according to the amount of cereals that the feed chain conveys, and there is a possibility that cereals may be clogged in the feed chain.

  Therefore, the main problem of the present invention is to eliminate such problems.

  The present invention that has solved the above problems is as follows.

The invention according to claim 1 includes a reaping device (4) that is disposed in front of an airframe frame (1) on which an engine (62) is mounted, and that conveys planted cereals to the rear, and the reaping device (4). A combiner comprising a threshing device (3) disposed rearward and threshing the harvested cereal mash, and a feed chain (12B) for supplying cereal to the handling room (50) of the threshing device (3), the engine ( 62) the first hydraulic continuously variable transmission (66) for continuously changing the rotation of the rotation and transmitting it to the reaping device (4); and the feed chain (12B) for continuously changing the rotation of the engine (62). A second hydraulic continuously variable transmission (10) for transmission to the transmission, a transmission actuator (10C) for shifting the output rotation of the second hydraulic continuously variable transmission (10), and the first hydraulic continuously variable transmission A speed sensor (11) for detecting the output rotation speed of (66) ) And a control device (100) for operating the speed change actuator (10C) in accordance with the speed detected by the speed sensor (112), and the grain straw conveyed by the mowing device (4) or the feed chain (12B) When the amount of the culm is detected by the culm amount sensor (116, 117, 118) for detecting the amount, the output rotation of the second hydraulic continuously variable transmission (10) is automatically increased. Then, after the first set time (D1) has elapsed from the time when the amount of the culm detected by the culm amount sensor (116, 117, 118) decreases below a predetermined amount, the second hydraulic continuously variable transmission ( output rotation of 10) are combined, characterized in that it has a configuration that slows down automatically.

Invention, when a state where the cereal by稈量sensor (116, 117, 118) of a predetermined amount or more culms is detected has continued during the second set time (D2), said engine according to claim 2 The combine according to claim 1, wherein transmission of rotation from the 62 to the reaping device (4) and the feed chain (12B) is stopped .

The invention according to claim 3 is provided with a pinch ridge (12A) that is disposed opposite to the conveying action portion of the feed chain (12B) and is urged toward the feed chain (12B), and the grain amount sensor The combine according to claim 1 or 2, wherein the amount of movement of the clamping rod (12A) to the side away from the feed chain (12B) is detected by (116) .

The invention according to claim 4 is a combine according before KiKoku稈量sensor (116) in claim 3 arranged in a portion of the cutting device (4) side in Kyoji杆(12A).

According to invention of Claim 1 , the 1st path | route (A) which transmits rotation of an engine (62) to a threshing apparatus (3) and a feed chain (12B), and a cutting device ( 4) Since the second path (B) for transmission is provided, the drive speed of the feed chain (12B) can be set independently of the speed of the cutting device (4). The harvested cereal meal can be supplied to the threshing device (3).

  Further, when the amount of the culm more than a predetermined amount is detected by the culm amount sensor (116, 117, 118) that detects the amount of the culm being conveyed, the output rotation of the second hydraulic continuously variable transmission (10). Since the speed of the feed chain (12B) is automatically increased, the feed chain (12B) is driven at an appropriate speed according to the amount of the cereal conveyed by the feed chain (12B), thereby reducing clogging of the cereal and improving the efficiency of the threshing operation. Can be increased.

Then , after the first set time (D1) has elapsed from the time when the amount of the culm detected by the culm amount sensor (116, 117, 118) has decreased below a predetermined amount, the second hydraulic continuously variable transmission ( Since the output rotation of 10) is automatically decelerated, clogging of the cereals at the takeover part with the lower conveying device than the feed chain (12B) can be reduced, and the transportation of the cereals is facilitated. Can do.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the invention, the second state is a state in which a predetermined amount or more of the culm is detected by the culm amount sensor (116, 117, 118). If it continues for the set time (D2), the transmission of rotation from the engine (62) to the mowing device (4) and the feed chain (12B) is stopped, so that an excess amount of cereals is removed from the threshing device (3 ) Can be prevented from being clogged with cereals and damaging each drive unit.

According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2 , the grain amount sensor (116) is separated from the feed chain (12B) of the sandwiching basket (12A). Since the amount of movement to the side is detected, it is possible to detect the amount of cereals conveyed by the feed chain (12B) with high accuracy, and between the feed chain (12B) and the holding basket (12A). When a foreign substance other than cereals is caught between the threshing devices, damage to the threshing device (3) due to the foreign substance can be reduced.

According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, the culm amount sensor (116) is disposed at a portion of the clamping ridge (12A) on the reaping device (4) side. Therefore, the change in the amount of cereal supplied to the feed chain (12B) is detected at the upper part of the feed chain (12B) and the output rotation of the second hydraulic continuously variable transmission (10) is detected. Therefore, the conveyance can be facilitated and the threshing capacity of the threshing device (3) can be further enhanced.

It is a left view of a combine. It is a top view of a combine. It is a principal part left view of a threshing apparatus. It is principal part sectional drawing of a threshing apparatus. It is a principal part front view of a combine. It is a principal part front view of a combine. It is attachment explanatory drawing of the hydraulic type continuously variable transmission for feed chains. (A) of the hydraulic continuously variable transmission for feed chains is an enlarged sectional view, and (b) is an enlarged side view. It is a principal part transmission mechanism figure of a combine. It is a block diagram of a control apparatus. It is a graph which shows a control aspect. It is a graph which shows a control aspect.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, although the direction is shown and demonstrated for convenience for easy understanding, the configuration is not limited by these.

  As shown in FIGS. 1 and 2, the combine is provided with a traveling device 2 including a pair of left and right crawlers for traveling on the soil surface below the machine frame 1, and threshing / sorting on the upper left side of the machine frame 1. A threshing device 3 is provided, and a reaping device 4 is provided in front of the threshing device 3 to harvest cereal grains in the field. The grain threshed and selected by the threshing device 3 is stored in a Glen tank 5 provided on the right side of the threshing device 3, and the stored grain is discharged to the outside by the discharge cylinder 7. In addition, an operation seat 6 on which an operator rides is provided on the upper right side of the body frame 1, and an engine room 8 on which an engine 62 is mounted is provided below the operation seat 6.

(Reaping device)
The reaping device 4 is attached to a reaping frame 30 that is a main frame formed by a post-reaping frame 28 and a reaping transmission case 29 that is laterally provided at the front end of the post-reaping frame 28 in the left-right direction. The base part of the post-cutting frame 28 is attached to a portion that is biased to the right side of the horizontal transmission cylinder 36 that is pivotally supported on the upper part of a pair of left and right suspension stands 35, 35 erected on the body frame 1. .

  The reaping device 4 includes a weed culm 31 for weeding a planted cereal stalk provided at the lower part on the front side, a pulling device 32 for causing a lying planted cereal stalk provided at the rear of the weed culm 31, and a pulling device The cutting blade device 33 that cuts the root of the planted culm provided at the lower part of the rear 32, and the harvesting cereal provided at the rear of the pulling device 32 and the cutting blade device 33 on one side of the threshing device 3 And a conveying device 34 that conveys toward the provided threshing portion conveying device 12. The conveying device 34 includes a stock source conveying device 34 </ b> A that conveys the stock source side of the harvested cereal rice bran, and a tip conveying device 34 </ b> B that conveys the tip side, and from the conveying device 34 to the threshing portion conveying device 12. In order to prevent the fall of the cereal grains when taking over, the inner part (right side part) of the front end part of the threshing part transport apparatus 12 is supported from the rear end part of the transport apparatus 34 to the front end part of the handling chamber 50. A body 37 is provided.

  As shown in FIGS. 3 to 5, the left suspension base 35 is attached to the upper side of a base 35 </ b> A erected on the body frame 1. A front shaft on the left side of the suspension base 35 is provided with a fixed shaft 35 </ b> B extending in the vertical direction for rotatably supporting the base portion of the lateral transmission frame 35 </ b> C that pivotally supports the left side portion of the lateral transmission cylinder 36. Further, in order to easily perform maintenance / inspection work of devices such as the weed cage 31 and the pulling device 32 of the mowing device 4 by rotating the horizontal transmission cylinder 36 about the fixed shaft 35B, the horizontal transmission frame 35C includes: It is formed in an arc shape having a convex portion downward from the base portion to the distal end portion when viewed from the front.

  The right suspension base 35 is attached to the upper side of a base 35 </ b> A erected on the body frame 1. A support member 35 </ b> D that pivotally supports the right side portion of the lateral transmission cylinder 36 is attached to the upper end portion of the suspension base 35. The support member 35D includes a front support member and a rear support member that are divided into substantially semicircular arcs. When the right side portion of the lateral transmission cylinder 36 is pivotally supported, the lateral transmission cylinder 36 is rotated about the fixed shaft 35B in order to engage the front and rear support members and perform maintenance of the cutting device 4 or the transmission 65. When the mowing device 4 is moved to the left side, the front and rear support members are disengaged and the lateral transmission cylinder 36 is pulled forward. In addition, in order to increase the rigidity against deformation of the left and right suspension bases 35, 35, a connecting frame 35E is installed at an intermediate portion in the vertical direction of the left and right suspension bases 35, 35.

  The rotation of the engine 62 is transmitted to the traveling hydraulic continuously variable transmission 66 via a pulley 66B supported by the input shaft of the traveling hydraulic continuously variable transmission 66, and is transmitted to the traveling hydraulic continuously variable transmission 66. The transmitted rotation is supported by the right end portion of the lateral transmission shaft 36A housed in the lateral transmission cylinder 36 via a pulley (not shown) supported by the output shaft of the traveling hydraulic continuously variable transmission 66. It is transmitted to the pulley 36A and rotates the lateral transmission cylinder 36 and the lateral transmission shaft 36A. The rotation transmitted to the lateral transmission shaft 36 </ b> A is transmitted to the pulling device 32, the cutting blade device 33, the conveying device 34, etc. of the reaping device 4 through transmission shafts (not shown) housed in the frames 27 and 28. Is done.

  The rotation of the engine 62 is transmitted to the traveling hydraulic continuously variable transmission 66 via a pulley 66B supported by the input shaft of the traveling hydraulic continuously variable transmission 66, and the traveling hydraulic continuously variable transmission for traveling. The rotation transmitted to 66 is transmitted to the left and right crawlers of the traveling device 2 via the transmission 65.

(Threshing device)
As shown in FIG. 4, the threshing device 3 includes a handling chamber 50 for threshing the cereal at the upper part on the front side, and a sorting chamber (sorting unit) for sorting the threshed grains below the handling chamber 50. 51 is provided.

  In the handling chamber 50, a handling cylinder 55 having a plurality of teeth is supported on a handling cylinder shaft that is pivotally supported by the front and rear walls 50A and 50C. A cereal supply port 26A is opened at the lower left side of the front wall 50A of the handling chamber 50, a handling port 26B is opened along the handling cylinder 55 at the lower side of the left wall 50B, and the lower left side of the rear wall 50C. The evacuation port 26C is opened. Further, on the left side of the handling chamber 50, a threshing section transporting device 12 is provided in parallel along the handling opening 26B so as to sandwich the cereal stock and transport it backwards. The completed sorghum cereal is taken over by a sewage transporting device 58 provided at the rear of the threshing unit transporting device 12 and further transported rearward, and then cut by a pair of scouring cutters 59 and discharged to the outside. .

  A swing sorting device 52 is provided in the upper part of the sorting chamber 51, and a lower part of the sorting chamber 51 includes a first tang 53 A for blowing air to a sheave in front of the swing sorting device 52, and a swing sorting device. Kernel 53B that collects the spilled grain, the second tang 53C that blows air to the sheave at the rear of the oscillating sorter, and the cereals that are attached to the branch stem that leaks from the sway sorter A second receiving rod 53D for collecting the (second item) is installed in order from the front side. The grain recovered by the first receiving box 53B is transferred to the Glen tank 5 by the first transfer spiral 53b installed in the first receiving box 53B, and the grains and the like recovered by the second receiving box 53D are two. It is transferred to the second processing chamber by a second transfer spiral 53d built in the number receiving basket 53D.

  The rear part on the right side of the handling chamber 50 communicates with the dust treatment chamber. Inside the dust treatment chamber, a dust treatment cylinder 57 having screw blades on its outer peripheral surface is pivotally supported in the front-rear direction. A second processing chamber for processing and reducing the second product is provided on the front side of the chamber. In the second processing chamber, a second processing cylinder 56 having intermittent spiral blades on the outer peripheral surface is pivotally supported. In addition, a dust exhaust fan 48 is provided on the upper rear side of the oscillating sorting shelf to suck and discharge the waste generated during threshing and sorting.

(Threshing part transport device)
As shown in FIGS. 3 and 6 and the like, the threshing section transporting device 12 includes a clamping rod 12A located on the upper side and a feed chain 12B located on the lower side. The clamping rod 12A is urged toward the feed chain 12B by the urging means 14 such as a spring with respect to the upper cover 50D of the handling chamber 50. The feed chain 12B is wound around and driven by tensioning wheels 17B and 17B rotatably supported on the front and rear ends of the upper chain rail 18A, and a drive sprocket 17A provided between the tensioning wheels 17B and 17B. Is an endless chain. The working side feed chain 12B mounted on the upper chain rail 18A clamps the holding basket 12A and the grain base in the process of moving backward from the front side.

  In a side view, the sandwiching trough 12A is provided with a slope that rises rearward along the handling opening 26B from the grain supply port 26A to the discharge opening 26C of the handling chamber 50. The upper chain rail 18A on which the feed chain 12B on the working side is mounted tilts rearward and upward from the front front end of the horizontal shaft transmission cylinder 36 and then gently tilts rearward and forward of the grain supply port 26A of the handling chamber 50. After arriving, it faces and rises backward along the handling opening 26B from the grain supply port 26A of the handling chamber 50 to the discharge opening 26C, facing the holding bowl 12A. Then, after extending horizontally from the discharge port 26C, it tilts backward and reaches the rear end behind the front end of the tip conveying device 34A. The lower chain rail 18B on which the non-working-side feed chain 12B is mounted is inclined upward from the front end above the counter shaft 71 that transmits the rotation of the engine 62 to the drive sprocket 17A and reaches the rear end. The rear end of the lower chain rail 18B is provided in front of the rear extending wheel 17B and below the discharge port 26C.

  A guide 18D for guiding the non-operating feed chain 12B to a drive sprocket 17A provided below the front end of the lower chain rail 18B is detachably attached to the front end of the lower chain rail 18B. . The guide 18D is provided above the counter shaft 71 and has a substantially quarter circle shape. In addition, it is preferable to provide a cover (not shown) above the guide 18D in order to prevent the counter shaft 71 and the like from being soiled by dropping of oil or the like.

  On the lower side of the lower chain rail 18B, an upper chain rail 18A and a rail support member (support frame) 19 that supports the lower chain rail 18B are provided by a rail connecting plate 18C. That is, the feed chain 12 </ b> B is supported by the rail support member 19. In addition, the upper chain rail 18A and the connecting plate 18E connected to the lower chain rail 18B prevent the sawdust falling from the feed chain 12B being transported from the rice straw from dropping into the drive unit of the sorting chamber 51. A sawdust guide plate (not shown) is attached.

  As shown in FIGS. 3 and 5, the front end portion of the rail support member 19 is attached to a plate 19 </ b> A attached to a bracket 19 </ b> B by bolts or the like, and the bracket 19 </ b> B is fixed to a fixed shaft 35 </ b> B provided on the left suspension base 35. It is rotatably attached to the upper and lower ends.

  In order to prevent interference with the feed chain hydraulic continuously variable transmission (hydraulic continuously variable transmission) 10 and the like, the rail support member 19 has a feed chain hydraulic continuously variable transmission from the front end in a side view. After extending rearward between the 10 input shafts 10A and the output shaft 68B of the gear box 68, it is bent approximately 90 degrees in front of the transmission motor 10C and extends upward. Then, after extending the front of the counter shaft 71 upward, it tilts upward from the lower side of the guide 18D along the lower side of the lower chain rail 18B, and substantially extends in the front-rear direction of the lower chain rail 18B. It reaches the center.

  As a result, when the maintenance and inspection of the feed chain 12B, the feed chain hydraulic continuously variable transmission 10 and the like are performed, the rail support member 19 is rotated about the fixed shaft 35B, so that the rear portion of the feed chain 12B. Can be easily performed by separating the threshing from the main body of the threshing device 3.

  In a side view, the front tensioning wheel 17B is provided in the vicinity of the front of the horizontal shaft transmission cylinder 36 that transmits the rotation of the engine 62 to the cutting device 4, as shown in FIG. It is provided in the vicinity of the rear of the front end portion of the tip conveying device 34A. The drive sprocket 17A is disposed between the front and rear tensioning wheels 17B and 17B in the front-rear direction and is biased toward the front tensioning wheel 17B. The drive sprocket 17A and the feed shaft 12B The counter shaft 71 that transmits the rotation of the engine 62 is positioned substantially at the center. Further, in the vertical direction, it is located at the approximate center of the rail support member 19 extending rearward for supporting the counter shaft 71 and the lower chain rail 18B and the like. Further, a tension sprocket 17C is provided between the front tensioning wheel 17B and the drive sprocket 17A. The base is supported by a drive shaft 68D described later.

  Thus, after the feed chain 12B moves upward from the drive sprocket 17A, it moves along the tension sprocket 17C to reach the front tensioning wheel 17B, and from the front tensioning wheel 17B to the upper chain rail 18A. The upper side moves toward the rear tensioning wheel 17B. Thereafter, the feed chain 12B moves from the rear tensioning wheel 17B toward the front lower chain rail 18B, and then moves from the rear end of the lower chain rail 18B to the upper side of the lower chain rail 18B with the front guide 18D. Then, it moves along the guide 18D and reaches the drive sprocket 17A.

  As shown in FIG. 6, the rotation of the engine 62 is transmitted to the feed chain hydraulic continuously variable transmission 10 through the counter shaft 71, and after being accelerated and decelerated by the key box 68, the driving of the threshing section transport device 12 is driven. It is transmitted to the output shaft 68B connected to the sprocket 17A.

  Both side portions of the counter shaft 71 are pivotally supported by a pair of support members 80 erected forward at the center of the front wall 50A of the threshing device 3 in the vertical direction. The rotation of the engine 62 is transmitted to the counter shaft 71 via a pulley 71 </ b> A supported on the right end portion of the counter shaft 71.

  The rotation transmitted to the counter shaft 71 is transmitted to the handling cylinder 55 via the pulley 71C and the belt 92 supported on the left side of the pulley 71A, and on the right side of the pulley 71E supported on the left end portion of the counter shaft 71. It is transmitted to the input shaft 10A of the feed chain hydraulic continuously variable transmission 10 via the supported pulley 71D, belt 93, and the like. The rotation transmitted to the input shaft 10A of the feed chain hydraulic continuously variable transmission 10 is transmitted to the gear box 68 via the output shaft 10B as shown in FIG. And transmitted to the output shaft 68B. The rotation transmitted to the output shaft 68B is transmitted to the drive sprocket 17A of the feed chain 12A via the coupling 68C. The drive sprocket 17A is rotatably supported by the drive shaft 68D.

  The drive shaft 68D is supported by a plate 19C attached to the right side of the rail support member 19, and when the rail support member 19 is rotated with respect to the fixed shaft 35B, the output shaft 68B by the coupling 68C and the drive sprocket 17A. The connection is released, and the rotation of the engine 62 is not transmitted to the drive sprocket 17A, so that the feed chain 12B, the guide 18D, etc. can be exchanged safely.

  As shown in FIG. 7, the carrier box 68 is attached to the right side surface of the rear plate 11 </ b> B that is erected forward at a portion biased to the lower side in the vertical direction of the front wall 50 </ b> A of the threshing device 3. Further, in order to effectively use the space on the front side of the threshing device 3, a feed chain hydraulic continuously variable transmission 10 is attached to the left side surface of the carrier box 68. Furthermore, the feed chain hydraulic continuously variable transmission A transmission motor 10 </ b> C that rotates the trunnion shaft of the feed chain hydraulic continuously variable transmission 10 is attached to the rear side of the motor 10. The feed chain hydraulic continuously variable transmission 10 and the carrier box 68 can be attached to the body frame 1, and the transmission motor 10 </ b> C can be attached to the carrier box 68.

  The transmission motor 10 </ b> C shifts the feed chain hydraulic continuously variable transmission 10 in conjunction with the driving speed of the cutting device 4. Specifically, the speed of rotation output from the traveling hydraulic continuously variable transmission 66 and transmitted to the reaping device 4 is detected, and the transmission motor 10C is operated in accordance with the rotational speed.

  The front end portion of the rear plate 11B and the rear end portion of the front plate 11A provided in the connection frame 35E of the left and right suspension bases 35 and 35 are connected by loosely inserted pins in order to reduce vibration. The rear portion of the rear plate 11B is connected to a bracket on the counter shaft 71 side by fastening means such as a bolt.

  On the left side of the right base 35A, as shown in FIG. 6, in order to shorten the hydraulic system path, hydraulic system paths such as the feed chain hydraulic continuously variable transmission 10 and the traveling hydraulic continuously variable transmission 66 are provided. A control valve 9A for controlling the opening and closing of the control valve 9A is provided. On the right side of the control valve 9A is an oil tank 9B for supplying oil to the feed chain hydraulic continuously variable transmission 10, the traveling hydraulic continuously variable transmission 66, and the like. Is provided.

  In order to effectively utilize the space below the front of the threshing device 3 and prevent the feed chain 12B, the belt 93 and the like from interfering with each other when the feed chain 12 rotates, the input shaft 10A of the feed chain hydraulic continuously variable transmission 10 is provided. The output shaft 10B and the output shaft 68B of the gear box 68 are provided vertically so as to be vertical.

  In order to prevent hydraulic pressure loss, the input shaft 10 of the pump portion of the feed chain hydraulic continuously variable transmission 10 is provided below the output shaft 10B to control the feed chain hydraulic continuously variable transmission 10 and control. The valve 9A and the hydraulic path are shortened.

  In order to facilitate winding of the feed chain 12B, it is provided above the output shaft 68B of the gear box 68 and the output shaft 10B of the hydraulic continuously variable transmission 10 for feed chain, and the length of the feed chain 12B is shortened. Yes.

(Transmission mechanism)
Next, the transmission mechanism of this embodiment will be described. As shown in FIG. 9, the rotation of the engine 62 includes a first path A transmitted to the feed chain hydraulic continuously variable transmission 10 and a second path B transmitted to the travel hydraulic continuously variable transmission 66. And is branched and transmitted to the third path C transmitted to the gear box 39 in front of the Glen tank 5.

  In the first path A transmitted to the feed chain hydraulic continuously variable transmission 10, the rotation of the engine 62 is performed by the pulley 70 </ b> A supported by the crankshaft 70, the belt 90, and the pulley 71 </ b> A supported by the countershaft 71. Is transmitted to the counter shaft 71 via The first path A is provided with a threshing clutch 90 </ b> A that connects and blocks transmission downstream of the belt 90.

  The rotation of the counter shaft 71 is transmitted to the second processing drum 56 and the dust removal processing drum 57 via the pulley 71B, the belt 91 and the like, and the handling drum 55 and the waste transporting device via the pulley 71C and the belt 92 and the like. 58 is transmitted. 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 by the input shaft 10A of the feed chain hydraulic continuously variable transmission 10. Further, the counter shaft 71 is rotated through the pulley 71E supported on the left side of the pulley 71D and the belt 94 through the first tang 53A, the first transfer spiral 53b, the second tang 53C, the second transfer spiral 53d, the dust discharge. It is transmitted to the fan 48, the swing sorting device 52, and the waste cutter 59.

  The rotation of the input shaft 10 </ b> A is transmitted to the gear box 68 via the output shaft 10 </ b> B, and after being increased / decreased by a plurality of gears 68 </ b> A built in the gear box 68, the rotation is performed on the output shaft 68 </ b> B supported by the gear box 68. Be transmitted.

  The gear box 68 is provided with a feed chain speed sensor 68F that measures the rotational speed of the gear 68E provided in the output shaft 10B of the feed chain hydraulic continuously variable transmission 10.

  The rotation of the output shaft 68B is transmitted to the drive shaft 68D via the coupling 68C, and is transmitted to the feed chain 12B via the drive sprocket 17A supported on the left end of the drive shaft 68D. In order to easily rotate the feed chain 12B around the fixed shaft 35B provided upright on the left suspension base 35, the left end of the output shaft 68B is more than the left end of the counter shaft 71 as shown in FIG. Also extends to the left, and the drive sprocket 17A is also supported on the left side of the pulley 71E.

  A main transmission lever 16 for remotely operating the traveling hydraulic continuously variable transmission 66 is provided on the left side of the operation seat 6, and a transmission 65 is provided on the rear side of the main transmission lever 16 according to the lying state of the planted cereal. A sub-transmission lever 15 is provided for switching the stepped sub-transmission device provided in the transmission mechanism. The main transmission lever 16 is provided with a speed increasing switch 16A and a speed reducing switch 16B for remotely operating the feed chain hydraulic continuously variable transmission 10. When the acceleration switch 16A is pressed and held for about 2 seconds or longer, the rotation of the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 can be changed to the maximum rotation speed, and the acceleration switch 16A is pressed for about 1 second. Then, the rotation of the output shaft 10B can be increased stepwise. Similarly, when the deceleration switch 16B is pressed and held for about 2 seconds or more, the rotation of the output shaft 10B of the feed chain hydraulic continuously variable transmission 10 can be changed to the minimum rotational speed, and the deceleration switch 16B is shortened by about 1 second. When pushed, the rotation of the output shaft 10B can be reduced stepwise. The speed increasing switch 16A and the speed reducing switch 16B are collectively referred to as a speed change switch S.

  In the second path B transmitted to the traveling hydraulic continuously variable transmission 66, the rotation of the engine 62 is caused by the pulley 70B supported by the crankshaft 70, the belt 96, and the traveling hydraulic continuously variable transmission 66. This is input to the traveling hydraulic continuously variable transmission 66 through a pulley 66B supported by the input shaft.

  The rotation of the input shaft of the traveling hydraulic continuously variable transmission 66 is transmitted to the transmission 65 via the output shaft of the traveling hydraulic continuously variable transmission 66 and is accelerated and decelerated by a plurality of gears built in the transmission 65. After that, the vehicle is transmitted to the traveling device 2 via left and right axles 65A that are pivotally supported by the transmission 65 and drive wheels 65B that are fixed to the front end of the axle 65A. In addition, the rotation of the output shaft of the traveling hydraulic continuously variable transmission 66 is performed from the output shaft 65C that is output from a portion of the transmission path in the transmission 65 that is closer to the auxiliary transmission than the auxiliary transmission device to the tip of the output shaft 65C. Is transmitted to a pulley 36B supported on the right end of the lateral transmission shaft 36A via an output pulley 65D and a transmission belt 65E. As a configuration for urging the tension roller to the transmission belt 65E, a cutting clutch 65F is configured.

  That is, the rotation of the engine 62 transmitted to the input shaft of the traveling hydraulic continuously variable transmission 66 is increased and decelerated by the traveling hydraulic continuously variable transmission 66 and then branched. 2, and the other is transmitted to the pulling device 32 of the reaping device 4, the conveying device 34, etc. via the lateral transmission shaft 36 </ b> A, so the traveling speed of the traveling device 2 and the pulling device 32 of the reaping device 4 The pull-up speed and the transport speed of the transport device 34 are determined with a certain relationship. For example, when the traveling speed of the traveling device 2 is increased, the pulling speed of the pulling device 32 of the reaping device 4 and the conveying device 34 are also increased, and when the traveling speed of the traveling device 2 is decreased, the reaping device 4. The pulling speed of the pulling device 32 and the conveying device 34 are also low.

  Further, in the transmission path in the transmission 65, left and right side clutch gears 65H are pivotally supported so as to be engaged and disengaged on both left and right side portions of the center gear 65G provided on the lower side of the auxiliary transmission. . Claw clutch type left and right side clutches 65I are formed between the center gear 65G and the left and right side clutch gears 65H, respectively. The left and right side clutches 65I mesh with left and right axle gears 65K attached to the bases of the left and right axles 65A.

  The left and right side clutches 65I are separated from the center gear 65G by sliding the side clutch gear 65H in the left-right direction by a shifter (not shown) that is operated by a left-right tilting operation of a steering lever disposed in front of the operation seat 6. By doing so, the transmission is cut off.

  In addition, the left and right side clutches 65I are linked so as to be shut off in conjunction with the depression operation of the scratching pedal disposed on the front lower side of the operation seat 6.

  As a result, one side of the field is trimmed to the edge, the main transmission lever 16 is operated to the neutral position, the vehicle is stopped, and the left and right side clutches 65I are disconnected by depressing the brake pedal. When the main transmission lever 16 is again operated forward, the output shaft 65C is driven by the output of the traveling hydraulic continuously variable transmission 66, and the cutting device 4 is driven via the cutting clutch 65F. At this time, since the left and right side clutches 65I are disengaged, the traveling device 2 is not driven forward and maintains a stopped state. With this configuration, the planted cereal while still in the reaping device 4 can be reaped by operating the take-up pedal and the main transmission lever 16 in a state where the reaper has been cut and stopped.

In the third path C that is transmitted to the discharge spiral 39A of the Glen tank 5, the rotation of the engine 62 is caused by the pulley 70C supported by the crankshaft 70, the belt 97, the gear box 39, and the like below the Glen tank 5. Is transmitted to a discharge spiral 39A provided in The rotation of the discharge spiral 39 </ b> A is transmitted to an auger spiral 39 </ b> B housed in a discharge cylinder 7 provided behind the Glen tank 5.
(Control device)
Next, the control device of this embodiment will be described.

As shown in FIG. 10, the output rotational speeds of the traveling hydraulic continuously variable transmission 66 and the feed chain hydraulic continuously variable transmission 10 are controlled by a control device 100.
On the input side of the control device 100, an engine rotation sensor 110 that detects the rotation speed of the engine 62, a traveling speed sensor 111 that detects the traveling speed of the aircraft by the traveling device 2, and a driving speed of the reaping device 4 are detected. A cutting drive speed sensor (speed sensor) 112, a feed chain speed sensor 68F that detects the drive speed of the feed chain 12B, a cylinder rotation sensor 114 that detects the rotation speed of the cylinder 55, and a driving load of the cylinder 55 ( A handling cylinder load sensor 115 for detecting the handling torque of the handling cylinder), a sandwiching rod sensor 116 for detecting the quantity of the culm conveyed by the feed chain 12B, and the amount of culm that is transferred from the conveying device 34 to the feed chain 12B. A takeover guide sensor 117 to be detected, a squeezing pinch culm sensor 118 for detecting the amount of cereals conveyed by the squeezing and conveying device 58, and a swing selection A sheave opening sensor 119 for detecting the opening of the sieve device 52, threshing depth sensor 120 for detecting the threshing depth of culms supplied to threshing chamber 50 is connected.

Further, on the output side of the control device 100, a speed change motor (feed chain HST speed change motor) 11C that changes the output rotation of the feed chain hydraulic continuously variable transmission 10 and an output of the travel hydraulic continuously variable transmission 66 are provided. A traveling HST transmission motor 131 that changes the rotation is connected to an engine power shut-off means 132 that stops transmission of driving force from the engine 62 to the cutting device 4 and the feed chain 12B.
Note that the sandwiching candy sensor 116, the takeover guide sensor 117, and the rejection nipping sensor 118 are the grain amount sensors of the present invention. Then, the amount of cereal per unit time is calculated from the amounts detected by these sensors, that is, the distances retracted from the respective transport devices by the transport cereal and the drive speed of the transport device.
The clamping rod sensor 116 moves in the vertical direction (the direction in which the clamping rod 12A approaches and separates from the feed chain 12B) of the biasing device 14 at the front end of the biasing device 14 that biases the clamping rod 12A toward the feed chain 12B. Is detected. The takeover guide sensor 117 detects the rotation angle of the takeover guide extended from the vicinity of the conveying device 34 toward the front portion of the rear feed chain 12B.
Further, the squeezing / pinch culling sensor 118 is opposed to the lower part, which is the transporting action side of the squeezing / conveying device 58, and clamps the culm.
Further, the cutting drive speed sensor 112 detects the rotational speed of the output shaft 65C to which the driving force from the traveling hydraulic continuously variable transmission 66 is output. The cutting drive speed sensor 112 only needs to be able to detect the drive speed at any part of the drive path from the traveling hydraulic continuously variable transmission 66 to the lateral transmission shaft 36A.
Further, the engine power shut-off means 132 stops the transmission of the driving force by stopping the engine 62. Instead of this, a form in which the reaping clutch 65F and the threshing clutch 90A are shut off may be employed, and any form for stopping the driving of the reaping device 4 and the feed chain 12B may be employed.
(Control mode)
The feed chain 12 </ b> B is driven while being shifted according to the driving speed of the cutting device 4. Specifically, the cutting device 4 is driven to increase / decrease following the increase / decrease of the traveling speed of the machine body, and the driving speed of the feed chain 12B is changed following the increase / decrease of the driving speed of the cutting device 4. As shown in the graph of the traveling speed V of the machine body and the driving speed U of the cutting device 4 and the feed chain 12B shown in FIG. The speed is changed at Fs1. Further, when the amount of the culm detected by the culm amount sensors 116, 117, 118 is equal to or greater than the predetermined amount m1, the speed change line of the feed chain 12B is a speed change line that is faster than the first speed change line Fs1. The second shift line Fs2 is changed.
When the driving speed of the reaping device 4 is less than the speed corresponding to the traveling speed v1, the feed chain 12B is driven at a predetermined speed u1.
FIG. 12 shows a control mode of the feed chain 12B driving speed when the driving speed of the reaping device 4 is constant, and the amount of the culm detected by the culm amount sensors 116, 117, 118 is a predetermined amount m1 or more. Is driven at a speed u3 that is faster than the speed u2 in the case of less than the predetermined amount m1, and the amount of cereal detected by the cereal amount sensors 116, 117, 118 changes from the predetermined amount m1 or more to less than that, After the first set time D has elapsed from that point, the speed returns to u3. Note that the speed u2 is the speed on the first shift line Fs1 in FIG. 11, and the speed u3 is the speed on the second shift line Fs2.
Moreover, when the state in which the amount of cereals more than predetermined amount is detected by the cereal amount sensors 116, 117, 118 continues for the 2nd setting time (D2), it drives from the engine 62 to the cutting device 4 and the feed chain 12B. Stop power transmission.
In addition, when the rotational speed detected by the engine rotation sensor 110 is reduced due to the cutting conveyance load or the threshing load during the cutting operation, the drive speed of the feed chain 12B is increased for a certain time.
Further, when the driving load detected by the barrel load sensor 115 increases, the driving speed of the feed chain 12B is increased for a certain time.
Further, the drive speed of the feed chain 12B is increased as the handling depth detected by the handling depth sensor 120 becomes the deep handling side.

DESCRIPTION OF SYMBOLS 1 Airframe 3 Threshing device 4 Mowing device 10 Hydraulic continuously variable transmission for feed chain (2nd hydraulic continuously variable transmission)
12A Clamping rod 12B Feed chain 50 Handling chamber 55 Handling cylinder 62 Engine 66 Traveling continuously variable transmission (first hydraulic continuously variable transmission)
100 Control device 112 Cutting drive speed sensor (speed sensor)
116 Claw sensor (grain sensor)
117 Takeover guide sensor (grain amount sensor)
118 Exclusion pinch sensor (grain sensor)
D1 first set time D2 second set time

Claims (4)

A cutting device (4) disposed in front of the machine body frame (1) carrying the engine (62) and transporting the planted cereal to the rear of the cutting, and disposed behind the cutting device (4), A combiner comprising a threshing device (3) for threshing and a feed chain (12B) for supplying cereals to the handling room (50) of the threshing device (3), wherein the rotation of the engine (62) is steplessly performed A first hydraulic continuously variable transmission (66) that changes speed and transmits it to the mowing device (4), and a second hydraulic type that continuously changes the rotation of the engine (62) and transmits it to the feed chain (12B). A step transmission (10), a transmission actuator (10C) that changes the output rotation of the second hydraulic continuously variable transmission (10), and an output rotation speed of the first hydraulic continuously variable transmission (66) A speed sensor (112) to detect and the speed sensor ( 12) A control device (100) that operates the speed change actuator (10C) according to the detection speed of 12), and the amount of the culm that detects the culm amount conveyed by the reaping device (4) or the feed chain (12B) When the sensor (116, 117, 118) detects more than a predetermined amount of the culm, the output rotation of the second hydraulic continuously variable transmission (10) is automatically increased, and the culm amount sensor ( 116, 117, 118), the output rotation of the second hydraulic continuously variable transmission (10) is automatically performed after the first set time (D1) has elapsed since the time when the amount of the culm detected by the controller 116, 117, 118) has decreased below a predetermined amount. Combine, characterized in that the manner you deceleration configuration. When the state in which a predetermined amount or more of culms is detected by the grain稈量sensor (116, 117, 118) has continued during the second set time (D2), said engine (62) from the cutting unit (4 ) And the feed chain (12B) . The combine according to claim 1 configured to stop transmission of rotation to the feed chain (12B) . The feed chain (12B) is disposed opposite to the conveying action portion, and includes a clamping rod (12A) biased toward the feed chain (12B), and the clamping rod (116) The combine according to claim 1 or 2, wherein the amount of movement of 12A) away from the feed chain (12B) is detected . Combine of claim 3 which is disposed before KiKoku稈量sensor (116) to the site of the cutting device (4) side in Kyoji杆(12A).