JP5102636B2 - Combine - Google Patents

Description

  The present invention relates to a combine harvester that harvests cereals planted in a field and collects grains, or a combine such as feed combine that harvests cereals for feed and collects it as feed, and more particularly, a cutting blade device It is related with the combine which act | operated by the electric motor the corn straw conveyance means for conveying the grain mash from which a stock origin is cut | disconnected by this.

Conventionally, a combiner cuts the stock of uncut cereal planted in a field with a cutting blade device, conveys the cereal to a threshing device by a cereal conveying device as a cereal conveying means, and The cereal is threshed and the grains are collected. As shown in Patent Document 1, the reaping device is configured to operate by the driving force from the engine. Further, a configuration in which a cutting blade device is driven by an electric motor (for example, see Patent Document 2) and a configuration in which a cereal conveying device (scraper) is driven by an electric motor (for example, see Patent Document 3) are also known.
JP 2004-97038 A JP-A 63-258510 Japanese Patent Laid-Open No. 7-177813

  As shown in Patent Document 1, the prior art can operate the cutting blade device and the culm transport device at a speed synchronized with the moving speed (vehicle speed) of the traveling machine body when the culm transport device is operated by the engine. However, for example, when the traveling speed (vehicle speed) of the traveling machine body is constant, the operating speed of the cereal carrying device becomes too fast by slowing down the operating speed of the cereal raising device, When the operating speed is increased, the operating speed of the grain feeder becomes relatively slow, and when cutting a soft corn that tends to bend (plumbing) etc., or the amount of grain at the tip is increased or decreased. In this case, there is a problem that the tip side is delayed or accelerated with respect to the stock side of the cereal and the transport posture of the cereal is disturbed. In particular, in a combine that supplies a threshing device with the tip side of the harvested cereal rice cake in which the stock is sandwiched by the feed chain, the tip side of the harvested cereal rice cake is supplied to the threshing device in a posture slightly ahead of the stock source. The threshing performance of the threshing device is maintained, but, for example, when the tip side of the harvested cereal cocoon is transported later than the stock source side, the harvested cereal rice cake is supplied to the threshing device in a posture preceded by the stock source side, There is a problem that the cereal cake of a predetermined length becomes shallowly handled, and unhandled or broken rice easily occurs.

  In addition, as shown in Patent Document 3, when driving the cereal conveying device (scraper) by an electric motor, the cereal conveying device does not operate at a vehicle speed synchronization speed synchronized with the vehicle speed, so that the cereal conveying device conveys it. There is a problem that the conveying posture of the cereal is disturbed or the cereal is clogged.

  The purpose of the present invention is to provide a threshing posture in which the tip side of the chopped cereal culm is slightly ahead of the stock even if the operating speed of the culm pulling device is changed in relation to the properties of the uncut cereal culm planted in the field. The harvested culm can be transported so as to provide a combine that can improve the transport performance of the cereal transporting means.

  In order to achieve the above object, a combine according to a first aspect of the present invention includes a traveling machine body having a traveling unit that is operated by an engine, a culm pulling device that takes in cereals planted in a field, and a planting in a field. A combine comprising: a cutting blade device that cuts the stock of the cereal that has been cut; and a cereal transporting means that sandwiches and transports the cereal that has been cut by the cutting blade device. Provided is an electric motor for conveying drive that operates, and an elevating speed sensor that detects an operating speed of the grain raising device, and changes the rotational speed of the electric motor for conveying drive based on the detection result of the eliciting speed sensor. It is configured to control.

  The invention according to claim 2 is that, in the combine according to claim 1, the electric motor for driving the conveyance drive is automatically subjected to deceleration control in association with the operation speed of the grain raising device being slowed down, The conveyance drive electric motor is configured to automatically perform speed increase control in association with an increase in the operating speed of the grain raising apparatus.

  A third aspect of the present invention provides the combine according to the first aspect, wherein a cutting transmission means for changing an operating speed of the cutting blade device, a pulling transmission means for changing an operating speed of the grain raising apparatus, The pulling selection means for switching and operating the cutting speed change means or the pulling speed change means according to the cutting conditions of the uncut grain culm planted in the field, and the transport drive electric motor in relation to the operating speed of the culm pulling apparatus. And a trigger interlocking means for turning on and off the automatic control in which the motor automatically increases or decreases the speed.

  According to the invention which concerns on Claim 1, the traveling machine body provided with the driving | running | working part which operate | moves with an engine, the culm raising apparatus which takes in the cereal planted in the farm field, and the stock company of the cereal planted in the farm field In a combine comprising: a cutting blade device for cutting; and a corn straw transporting means for holding and transporting the corn straw whose stock has been cut by the cutting blade device, an electric motor for transport driving that operates the corn straw transporting means And a pulling speed sensor for detecting an operating speed of the grain raising apparatus, and configured to change and control the rotation speed of the electric motor for driving the conveyance based on the detection result of the pulling speed sensor. Therefore, for example, in the purging work of an overgrown culm in which an uncut culm planted in a field is lying forward toward the front of the traveling aircraft, even if the operating speed of the culm pulling device is changed, Begin feeding of grain feeder Inherit portion of the side, or disturbance of the conveying posture of culms cutting in feed end Inherit portion of the side or the like, or the occurrence of culm spill or 稈詰Ri in those taking over part or the like can be reduced. Accordingly, it is possible to improve the cereal conveying performance of the cereal conveying means and the feed chain. Further, regardless of the nature of the uncut grain culm planted in the field, the chopped grain culm is transported by the grain culm transporting means so that the tip side of the harvested corn shear is in a threshing posture slightly ahead of the stock. Therefore, for example, it is possible to prevent unhandled or broken rice from occurring in the threshing device.

  According to the invention which concerns on Claim 2, on the other hand, while the operating speed of the said grain raising apparatus becomes slow, the said drive motor is automatically decelerated and the operating speed of the said grain raising apparatus The speed of the electric motor for driving the conveyance is automatically controlled in association with the increase in the speed of the rice cake. Even if the carrying posture changes to the tip delayed posture or the tip leading posture, the culm conveying speed of the cereal conveying means is automatically changed by the change of the raising speed, and the It is possible to maintain the proper transport posture. Therefore, it is possible to easily prevent a disordered conveying posture of the harvested cereal in the inheriting portion on the feeding start end side or the succeeding portion on the feeding end side of the cereal conveying means. Even if the posture of the uncut grain culm in the harvesting operation is either an overturned cocoon or an upright cocoon, it is possible to easily prevent disturbance of the transporting posture of the chopped cereal that is nipped and transported by the culm transporting means. .

  According to the invention which concerns on Claim 3, the cutting transmission means which changes the operating speed of the said cutting blade apparatus, the raising transmission means which changes the operating speed of the said grain raising apparatus, and the uncut grain planted in the field The pulling selection means for switching the cutting transmission means or the pulling speed changing means according to the cutting condition of the heddle, and the conveyance drive electric motor is automatically The cutting blade is provided with an interlocking means for turning on and off the automatic control for decelerating. While the device or the culm pulling device can be operated at an appropriate speed, the culm transporting speed of the culm transporting means is properly maintained, the inheriting part on the feed start end side of the pallet transporting means, or the feed end Like conveying position of culms cutting the resumption unit such disturbance may easily prevented. In addition, even if the operator determines the change in the cutting conditions of the uncut grain halves and operates the above-described interlocking means, even if the cutting conditions of the uncut grain cereals change in a complicated manner, the control that follows can be easily performed. It is possible to maintain the speed at which the harvested cereals are conveyed properly.

  DESCRIPTION OF EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings. FIG. 1 is a left side view of the combine, FIG. 2 is a plan view of the combine, FIG. 3 is a side view of the cutting blade device and the culm conveying device, and FIG. 5 is a drive system diagram of the combine, FIG. 6 is a drive system diagram of the mission case, the counter case, etc., and FIG. 7 is a functional block diagram of a control circuit of the cereal transport means (vertical transport chain). The overall structure of the combine will be described with reference to FIGS. 1 and 2. In the following description, the left side in the traveling direction of the traveling machine body 1 is simply referred to as the left side, and the right side in the traveling direction is also simply referred to as the right side.

  The combine according to the present embodiment includes a traveling machine body 1 supported by a pair of left and right traveling crawlers 2 as traveling portions. At the front part of the traveling machine body 1, a six-row mowing device 3 that takes in while harvesting cereals is mounted by a single-acting lifting hydraulic cylinder 4 so as to be movable up and down around the mowing rotation fulcrum shaft 4a. Yes. A threshing device 5 having a feed chain 6 and a grain tank 7 for storing grains taken out from the threshing device 5 are mounted on the traveling machine body 1 side by side. In this embodiment, the threshing device 5 is disposed on the left side in the traveling direction of the traveling machine body 1, and the grain tank 7 is disposed on the right side in the traveling direction of the traveling machine body 1. A swivelable discharge auger 8 is provided at the rear part of the traveling machine body 1, and the grains inside the grain tank 7 are discharged from the throat throw opening 9 of the discharge auger 8 to a truck bed or a container. ing. An operation cabin 10 is provided on the right side of the reaping device 3 and on the front side of the grain tank 7.

  In the driving cabin 10, there are disposed a steering handle 11, a driving seat 12, a main transmission lever 42, a sub transmission lever 43, and a work clutch lever 44 for turning on and off the threshing clutch and the mowing clutch. Although not shown, the driving cabin 10 is provided with a step on which an operator gets on, a handle column provided with the steering handle 11, and a lever column provided with the levers 42, 43, 44 and the like. An engine 14 as a power source is disposed in the traveling machine body 1 below the driver seat 12.

  As shown in FIGS. 1 to 4, left and right track frames 21 are arranged on the lower surface side of the traveling machine body 1. The track frame 21 includes a drive sprocket 22 that transmits the power of the engine 14 to the traveling crawler 2, a tension roller 23 that maintains the tension of the traveling crawler 2, and a plurality of track rollers that hold the ground side of the traveling crawler 2 in a grounded state. 24 and an intermediate roller 25 that holds the non-grounded side of the traveling crawler 2 are provided. The driving sprocket 22 supports the front side of the traveling crawler 2, the tension roller 23 supports the rear side of the traveling crawler 2, the track roller 24 supports the grounding side of the traveling crawler 2, and the intermediate roller 25 supports the non-traveling crawler 2. The ground side will be supported.

  A clipper-type cutting blade device 222 is provided below the cutting frame 221 connected to the cutting rotation fulcrum shaft 4a of the cutting device 3 so as to cut the stock of uncut grain cereal (cereal culm) planted in the field. ing. In front of the mowing frame 221, a stalk raising apparatus 223 for six stalks that raises an uncut cereal cultivated in the field is disposed. Between the culm pulling device 223 and the front end (feed start side) of the feed chain 6, a culm conveying device 224 that conveys the chopped culm harvested by the cutting blade device 222 is arranged. In addition, in front of the lower part of the grain raising apparatus 223, a weeding body 225 corresponding to six strips for weeding the uncut grain rice planted in the field is provided. While the traveling crawler 2 is driven by the engine 14 and moved in the field, the uncut grain culms planted in the field are continuously harvested by the harvesting device 3.

  Next, the structure of the reaping device 3 will be described with reference to FIGS. 3 and 4. As shown in FIGS. 3 and 4, the cutting frame 221 includes a cutting input case 16 that is rotatably supported by the bearing stand 15 on the front end side of the traveling machine body 1, and a vertical extension that extends forward from the cutting input case 16. A transmission case 18, a horizontal transmission case 19 extending in the left-right direction on the front end side of the vertical transmission case 18, and a weeding frame 20 for six strips connected to the horizontal transmission case 19 are formed. A six-part weed body 225 supported on the front end side of the weed frame 20 is disposed. A cutting input shaft 17 for a cutting culm to which power from the engine 14 is transmitted is incorporated in a cutting input case 16 that is horizontally mounted in the horizontal direction of the machine body.

  The grain raising device 223 has a pulling case 29 for six strips having a plurality of raising tines 28 for raising an uncut grained rice chopped by the weed board 225. The grain feeder 224 includes left and right right star wheels 30R and left and right right scooping belts 31R that squeeze the stock side of the two right-side grains introduced from the pulling case 29 for the two right-hand sides, and the left side Left and right left star wheels 30L and left and right left scooping belts 31L that scrape the stock side of the left two cereal grains introduced from the two pulling cases 29, and the center introduced from the two pulling cases 29 in the center It has left and right central star wheels 30C and left and right central rake belts 31C that rake up the stock side of the cereals for two strips.

  The cutting blade device 222 is scraped by the right star wheel 30R and the left and right right take-up belts 31R, the left star wheel 30L and the left and right left take-up belts 31L, the center star wheel 30C, and the left and right center take-up belts 31C. It has clipper-shaped left and right cutting blades 32 for cutting the stocks of the cereal grains.

  In addition, the cereal carrying device 224 is configured to carry the right stock former transport chain 33R that feeds back the stock side of the right two reaped harvested rice straw that has been raked by the right two star wheels 30R and the take-up belt 31R. And left stock transport that joins the stock side of the left two strips of harvested cereal that has been raked by the left two star foils 30L and the scraping belt 31L to the transport end of the right stock transport chain 33R In the middle of transporting the right stock transport chain 33R by transporting the stock side of the chain 33L, the central two portions of the star foil 30C and the central two strips of the harvested cereal rice bran 31C. A central stock transport chain 33C to be merged. By the left and right and center stock transport chains 33R, 33L, and 33C, the stock side of the harvested cereal grains for 6 lines is joined to the transport end of the right stock transport chain 33R.

  The grain feeders 224 are fed from a right conveying base chain 33R, a vertical conveying chain 34 that serves as a grain conveying means that inherits the stock side of the harvested cereals for six strips, and fed from the conveying terminal end of the vertical conveying chain 34. Auxiliary stock source transport chains 35 and 36 as auxiliary transport means for transporting the stock source side of the harvested cereals for six strips are provided at the transport start end of the chain 6. From the vertical conveyance chain 34, the stock side of the harvested cereals for 6 ridges is conveyed to the conveyance start end portion of the feed chain 6 through the auxiliary stock source conveyance chains 35 and 36.

  The grain culm transporting device 224 is transported by the right stalk transporting tine 37R that transports the head of the harvested stalks for the two right-hand ridges transported by the right stock transporting chain 33R and the left stock transporting chain 33L. Left tip transport tine 37L that transports the tip of the harvested cereals for the left two strands, and central tip transport tine that transports the tip of the harvested cereals for the central two strips transported by the central stock transport chain 33C 37C and a rear tip transporting tine 38 that transports the tip side of the cut grain cereals for six strips transported by the vertical transport chain 34. The tip side of the harvested cereal cocoons for the six strips harvested by the reaping device 3 is transported into the handle barrel 226 of the threshing device 5.

  Next, the drive structure will be described with reference to FIG. As shown in FIG. 5, a pulling lateral transmission shaft 48 is connected to the cutting input shaft 17 via a longitudinal transmission shaft 40, a lateral transmission shaft 41, and a left conveying drive shaft 69 which will be described later. The pulling lateral transmission shaft 48 is connected to the pulling tine drive shaft 45 of each pulling case 29 for six lines. A pulling case 29 is erected on the rear side of the weeding body 225 and above the weeding frame 20. The pulling tine chain 28 a provided with a plurality of pulling tines 28 is driven via the pulling tine drive shaft 45 and the pulling lateral transmission shaft 48.

  As shown in FIG. 5, the left and right cutting blades 32 are connected to the lateral transmission shaft 41 via the left and right crankshafts 52a and 52b. The left and right cutting blades 32 are configured to be driven synchronously via the lateral transmission shaft 41. The cutting blade device 222 is divided at the central portion of the cutting width for six lines to form the left and right cutting blades 32, and the left and right cutting blades 32 are reciprocated in opposite directions, and left and right generated by the reciprocating movement. The vibration (inertial force) of the cutting blade 32 can be offset.

  As shown in FIG. 5, one end of the vertical transmission shaft 40 in the vertical transmission case 18 is connected to the cutting input shaft 17. One end side of the lateral transmission shaft 41 in the lateral transmission case 19 is connected to the other end side of the longitudinal transmission shaft 40. The rotational force of the cutting input shaft 17 is transmitted from the vertical transmission shaft 40 and the horizontal transmission shaft 41 to each drive unit of the cereal conveyance device 224.

  That is, the right conveyance drive shaft 62 is connected to the vertical transmission shaft 40. Via the vertical transmission shaft 40 and the right transport drive shaft 62, the right stock former transport chain 33R and the right tip transport tine 37R, the right star wheel 30R and the right take-up belt 31R are driven. Further, the auxiliary stock former transport chains 35 and 36 and the rear tip transport tine 38 are driven via the vertical transmission shaft 40 and the rear transport drive shaft 54.

  As shown in FIG. 5, a vertical conveyance drive electric motor 92 that drives a vertical conveyance chain 34 as a cereal conveyance means so as to be able to switch between forward and reverse rotations is provided. The vertical conveyance drive shaft 63 is driven by the vertical conveyance drive electric motor 92. The vertical conveying chain 34 is driven via the.

  Further, a left transport drive shaft 69 is connected to the left end side of the lateral transmission shaft 41. The left stock former transfer chain 33L and the left tip transfer tine 37L, the left star wheel 30L, and the left take-up belt 31L are driven via the left transfer drive shaft 69. Further, the central transmission drive shaft 75 is connected to the lateral transmission shaft 41, and the central stock transport chain 33C and the central tip transport tine 37C, the central star wheel 30C, and the central scraping belt 31C are connected via the central transport drive shaft 75. Is configured to be driven.

  Next, with reference to FIG.1 and FIG.2, the structure of the threshing apparatus 5 is demonstrated. As shown in FIG. 1 and FIG. 2, the threshing device 5 includes a handling cylinder 226 for threshing threshing, a rocking sorter 227 for sorting out shed matter falling below the handling cylinder 226, and a tang fan 228. A processing cylinder 229 that reprocesses the threshing waste taken out from the rear part of the handling cylinder 226 and a dust exhaust fan 230 that discharges dust at the rear part of the swing sorter 227 are provided. In addition, the rotating shaft core line of the handling cylinder 226 extends along the conveying direction of the cereal by the feed chain 6 (in other words, the traveling direction of the traveling machine body 1). The stock source side of the corn straw conveyed from the reaping device 3 by the corn straw conveying device 224 is inherited by the feed chain 6 and is nipped and conveyed. Then, the tip side of the cereal cocoon is carried into the handling chamber of the threshing device 5 and threshed by the handling drum 226.

  On the lower side of the swing sorter 227, a first conveyor 231 that takes out the grain (first thing) sorted by the swing sorter 227, and a second that takes out a second thing such as a grain with a branch raft. A conveyor 232 is provided. The two conveyors 231 and 232 of this embodiment are arranged in the order from the front side in the traveling direction of the traveling machine body 1 to the upper surface side of the traveling machine body 1 above the rear part of the traveling crawler 2 in a side view in order of the first conveyor 231 and the second conveyor 232. It is installed.

  The swing sorter 227 is configured such that the cereals that have leaked from the receiving net 237 stretched below the handling cylinder 226 are peristally sorted (specific gravity sorting) by the feed pan 238 and the chaff sheave 239. The grains falling from the rocking sorter 227 are removed by the sorting air from the red pepper fan 228, and fall first on the conveyor 231. A cereal conveyor 233 extending in the vertical direction is connected to a terminal portion of the first conveyor 231 that protrudes outward from one side wall (right side wall in the embodiment) of the threshing device 5 near the grain tank 7. . The grain taken out first from the conveyor 231 is carried into the grain tank 7 via the cereal conveyor 233 and collected in the grain tank 7. In addition, along the inclination of the rear surface of the grain tank 7, the raising conveyor 233 is erected on the rear side of the grain tank 7 in a backward inclined posture in which the upper end side of the raising conveyor 233 is inclined backward.

  Further, the swing sorter 227 is configured to drop a second thing such as a grain with a branch infarction from the chaff sheave 239 onto the second conveyor 232 by peristaltic sorting (specific gravity sorting). A sorting fan 241 for wind-selecting the second thing falling below the chaff sheave 239 is provided. As for the second thing that has fallen from the chaff sheave 239, dust and swarf in the grain are removed by the sorting air from the sorting fan 241 and dropped onto the second conveyor 232. The terminal portion of the second conveyor 232 that protrudes outward from one side wall near the grain tank 7 in the threshing device 5 crosses the cereal conveyor 233 and extends in the front-rear direction through the feed conveyor 238. The second item is returned to the upper surface side of the feed pan 238 and re-sorted.

  On the other hand, a waste chain 234 is disposed on the rear end side (feed end side) of the feed chain 6. The slag passed from the rear end side of the feed chain 6 to the sewage chain 234 (the slag from which the grain has been threshed) is discharged to the rear of the traveling machine body 1 in a long state, or the rear side of the threshing device 5 After being cut to a suitable length by the waste cutter 235 provided on the rear, the machine is discharged to the lower rear side of the traveling machine body 1.

  Next, the drive structure of the reaping device 3, the threshing device 5, the feed chain 6, the waste chain 234, the waste cutter 235, etc. will be described with reference to FIGS. As shown in FIGS. 5 and 6, the output shaft 70 projects from the front side and the rear side of the engine 14. The traveling input shaft 84 of the transmission case 71 is connected to the output shaft 70 on the front side of the engine 14 via a universal joint 83, and the rotational driving force of the engine 14 is transmitted from the front output shaft 70 to the transmission case 71 for shifting. After that, the left and right traveling crawlers 2 are transmitted to the left and right traveling crawlers 2 via the left and right axles 72, and the left and right traveling crawlers 2 are driven by the rotational force of the engine 14.

  As shown in FIG. 5, a radiator cooling fan 73 for cooling the engine 14 and a generator 89 for supplying power for operating the above-described electric motor 92 and the like are provided. A fan drive shaft 88 that supports a cooling fan 73 is connected to the output shaft 70 on the rear side of the engine 14. The fan drive shaft 88 is connected to the input shaft of the generator 89. The cooling fan 73 and the generator 89 are driven by the rotational driving force of the engine 14. In addition, a discharge auger drive shaft 76 is connected to the output shaft 70 on the rear side of the engine 14, and the discharge auger 8 is driven via the discharge auger drive shaft 76 by the rotational drive force from the engine 21, The grain is configured to be discharged into a container or the like.

  Further, a threshing drive shaft 77 that transmits the rotational driving force from the engine 14 to the handling cylinder 226 and the processing cylinder 230 is provided. A threshing drive shaft 77 is connected to the output shaft 70 on the rear side of the engine 14 via a tension roller type threshing clutch 78 and a threshing drive belt 79. The threshing drive shaft 77 is connected to a handling cylinder shaft 80 that supports the processing cylinder 226 and a processing cylinder shaft 81 that supports the processing cylinder 230. The handling cylinder 226 and the processing cylinder 230 are configured to rotate at a substantially constant rotational speed by the rotational force of the engine 14 at a substantially constant rotational speed. A sorting input shaft 82 is connected to the threshing drive shaft 77. Due to the rotational force of the engine 14 at a substantially constant rotational speed, the swinging sorter 227, the Kara fan 228, the first conveyor 231, the second conveyor 232, the sorting fan 241, and the dust exhaust fan 230 are substantially passed through the sorting input shaft 82. It is configured to rotate at a constant rotational speed.

  As shown in FIG. 6, the transmission case 71 has a hydraulic continuously variable transmission mechanism 96 for traveling main transmission having a pair of traveling hydraulic pumps and traveling hydraulic motors, and a pair of swing hydraulic pumps and swing hydraulic motors. A hydraulic continuously variable transmission mechanism 97 for turning is provided. The traveling hydraulic pump of the hydraulic continuously variable transmission mechanism 96 for traveling main transmission and the swing hydraulic pump of the swinging hydraulic continuously variable transmission mechanism 97 are connected to the traveling input shaft 84 of the transmission case 71 and driven. It is configured as follows. A PTO shaft 98 is disposed on the mission case 71. The PTO shaft 98 is driven by a traveling hydraulic motor of a hydraulic continuously variable transmission mechanism 96 for traveling main transmission. One end side of the PTO shaft 98 protrudes from the transmission case 71 to the left outer side.

  As shown in FIG. 6, on the left side of the engine 14, a counter gear case 99 is provided on the traveling machine body 1 on the front side of the threshing device 5. The counter gear case 99 is connected to the threshing drive shaft 77, the selection input shaft 82 connected to the threshing drive shaft 77, the vehicle speed tuning shaft 100 connected to the PTO shaft 98, and the selection input shaft 82 or the vehicle speed tuning shaft 100. A mowing transmission shaft 101, a mowing driving shaft 102 connected to the mowing input shaft 17, and a feed chain driving shaft 103 that drives the feed chain 6 are arranged.

  As shown in FIG. 6, a one-way clutch 105 that transmits the vehicle speed tuning rotational force of the vehicle speed tuning shaft 100 is provided on the vehicle speed tuning shaft 100 in the counter gear case 99. A cutting transmission shaft 101 is coupled to the vehicle speed tuning shaft 100 via a cutting transmission mechanism 108 and a one-way clutch 105. The cutting transmission mechanism 108 includes a low speed side transmission gear 106 and a high speed side transmission gear 107. The low speed side transmission gear 106 or the high speed side transmission gear 107 is selectively engaged with the cutting transmission shaft 101 by a cutting speed change operation means (not shown) for performing low speed, neutral (zero rotation) and high speed cutting speed changes. The tuning shaft 100 is configured to transmit a cutting shift output to the cutting transmission shaft 101 via the cutting transmission mechanism 108.

  As shown in FIG. 6, the cutting transmission shaft 101 is connected to the selection input shaft 82 via the constant rotation mechanism 111. The constant rotation mechanism 111 includes a low speed side constant rotation gear 109 and a high speed side constant rotation gear 110. A cutting drive shaft 102 is connected to the cutting transmission shaft 101 via a torque limiter 104. A rotation output at a constant rotational speed necessary for maintaining the cutting operation is transmitted from the sorting input shaft 82 to the cutting transmission shaft 101 through the low-speed constant rotation gear 109. Therefore, the cutting input shaft 17 can be operated at a constant rotational speed from the low-speed constant rotating gear 109 regardless of the moving speed of the traveling machine body 1 to maintain the cutting operation, and the direction change workability on the headland in the field can be improved. It can be improved.

  Further, a rotation output at a constant rotational speed that is faster than the maximum speed of the vehicle speed synchronization output from the vehicle speed tuning shaft 100 and the high speed side transmission gear 107 is transmitted from the sorting input shaft 82 to the cutting transmission shaft 101 via the high speed side constant rotation gear 110. Will be. Therefore, the cutting input shaft 17 can be operated at a constant rotational speed from the high-speed side constant rotating gear 110 that is faster than the maximum speed of the vehicle speed synchronization output, and the efficiency of cutting the fallen cedar can be improved. It is to be noted that the cutting input shaft 17 is actuated by a rotational force equal to or less than the torque set by the torque limiter 104 to prevent the cutting blade 32 and the like from being damaged.

  As shown in FIGS. 5 and 6, the speed change mechanism 30 is disposed on the left conveyance drive shaft 69 described above. The pulling speed change mechanism 30 includes a low speed gear 55, a standard gear 56, and a high speed gear 57. In the case of a standard normal mowing operation in which an uncut grain culm planted in a field is upright or semi-inverted, the operation position of the auxiliary transmission lever 43 is the harvesting operation speed position, and the shifting position of the cutting transmission mechanism 108 is the low-speed transmission gear. At the trimming standard output (low speed) position 106, the gear shift position of the pulling speed change mechanism 30 is set to the pulling standard output (medium speed) position of the standard gear 56.

  In addition, in the case of an overturning mowing operation in which an uncut grain culm planted in the field is lying in the forward direction and the tip side of the harvested cereal is transported extremely late from the stock, the operation of the auxiliary transmission lever 43 is operated. The position is the harvesting work speed position, the shift position of the cutting transmission mechanism 108 is the standard cutting output (low speed) position of the low speed side transmission gear 106, and the transmission position of the transmission mechanism 30 is set to the high speed gear 57. It is configured to be set to. In addition, in the case of a complete fall cutting operation in which the uncut grain culms planted in the field are almost completely fallen over, the fall over purging operation is also set.

  Further, when the uncut grain culm planted in the field is lying down toward the traveling machine body 1 and the tip side of the uncut grain culm tends to rise, the operation position of the auxiliary transmission lever 43 is harvested. At the working speed position, the cutting position of the cutting transmission mechanism 108 is set to the cutting standard output (low speed) position of the low speed side transmission gear 106, and the shifting position of the raising transmission mechanism 30 is set to the raising low speed output position of the low speed gear 55. It is configured as follows. In addition, when harvesting cereal grains that are easy to thresh and cereal grains that frequently lose stock, it is also set to lay down.

  Further, in the case of the surrounding mowing work that cuts the cocoon at the time of low speed movement, the operation position of the sub-shift lever 43 is the harvesting work speed position, and the shifting position of the cutting speed change mechanism 108 is the high speed output of the high speed side transmission gear 107. At the position, the shift position of the pulling mechanism 30 is set to the pulling standard output (medium speed) position of the standard gear 56. In that case, it is comprised so that the operating speed of the grain raising apparatus 223 may become high speed | velocity compared with the case of the above-mentioned fall pursuit. It should be noted that the surrounding mowing operation is also set in the case of a complete fall mowing operation in which an uncut cereal culm planted in a field is almost completely lying down or a cutting operation in which the volume of cereal husks to be threshed is large.

  The counter gear case 99 is provided with a feed chain tuning mechanism 112 having a planetary gear type transmission structure that connects the feed chain drive shaft 103 to the selection input shaft 82. The rotational output of the sorting input shaft 82 is shifted in proportion to the rotational speed of the cutting transmission shaft 101 by the feed chain tuning mechanism 112 and transmitted to the feed chain drive shaft 103. That is, by operating the feed chain 6 via the feed chain tuning mechanism 112, the feed chain is secured while ensuring the minimum rotational speed (constant rotational speed from the low-speed constant rotational gear 109) necessary for conveying the cereal. The cereal conveyance speed of 6 can be changed in synchronization with the vehicle speed.

  Next, conveyance speed control of the reaping device 3 of this embodiment, the culm pulling device 223, the vertical conveyance chain 34 as the culm conveying means, and the like will be described. FIG. 7 is a functional block diagram of transport speed control means such as the vertical transport chain 34, and includes a work controller 282 such as a microcomputer having a ROM storing a control program and a RAM storing various data. As shown in FIG. 7, on the input side of the work controller 282 constituted by a microcomputer, a work switch 273 that detects the drive of the threshing device 5 and the like, and the culm (uncut grain culm) of the culm pulling device 223. Alternatively, a culm sensor 287 that detects the culm (cut culm) of the culm conveying device 224, a vehicle speed sensor 285 that detects the moving speed of the traveling machine 1, and a rotative rotation sensor that detects the rotational speed of the chopping input shaft 17. 288, a conveyance speed setting dial 262 for steplessly adjusting the output rotation speed of the vertical conveyance drive electric motor 92 (the operation speed of the vertical conveyance chain 34), and the minimum output rotation speed (vertical rotation of the vertical conveyance drive electric motor 92). A low-speed rotation setting device 266 as a minimum rotation number setting device for setting a minimum operating speed of the transfer chain 34 and a maximum output rotation number (vertical transfer chain 34) of the electric motor 92 for vertical transfer driving. The maximum operating speed) high speed setter 267 as the highest rotational speed setter for setting, and connects the vertical conveyance rotation sensor 312 for detecting an output rotational speed of the vertical conveyor driving electric motor 92.

  As shown in FIG. 7, a vertical conveyance driver 302 that operates the vertical conveyance drive electric motor 92 is connected to the output side of the work controller 282. An electric motor 92 for vertical conveyance driving and a vertical conveyance driver 302 are connected to a generator 89 driven by the engine 14, and the electric motor 92 for vertical conveyance driving is configured to be operable by using the generator 89 as a power source. As a result, based on the detection result of the vehicle speed sensor 285 and the set value of the conveyance speed setting dial 262 as a speed change dial, the vertical conveyance driving electric motor 92 can be automatically controlled to increase or decrease, so that Regardless of the nature, etc., the harvested cereal can be transported so that the tip side of the harvested cereal is in a threshing position slightly ahead of the stock, and for example, it is prevented from being left unhandled or broken in the threshing device 5 In addition, it is possible to reduce disturbances in the conveying posture of the harvested culm, and to improve the cereal conveying performance of the vertical conveying chain 34, the feed chain 6 and the like as the cereal conveying means.

  That is, based on the detection result of the cutting rotation sensor 288 that detects the vehicle speed synchronization speed of the cutting device 3 that changes in synchronization with the moving speed (vehicle speed) detected by the vehicle speed sensor 285 and the set value of the transport speed setting dial 262, The output rotation speed of the vertical transfer driving electric motor 92 is automatically controlled. During the automatic control of the output rotational speed of the vertical transport driving electric motor 92, the operator manually operates the transport speed setting dial 262 to give priority to the automatic control of the output rotational speed of the vertical transport driving electric motor 92. The output speed of the transport drive electric motor 92 is changed so that the transport speed of the vertical transport chain 34 can be adjusted. As a result, since the conveyance speed of the vertical conveyance chain 34 can be changed by manual operation of the conveyance speed setting dial 262, the operation of the conveyance speed setting dial 262 allows the conveyance of the cereal while the operator observes the posture of the culm during conveyance. Following the change in posture, the conveying speed of the vertical conveying chain 34 can be quickly changed, and the conveying posture of the cereal can be easily corrected.

  In addition, the automatic control of the output rotation speed of the vertical transfer driving electric motor 92 is performed by the work controller 282 automatically storing the vertical transfer speed setting value set by the manual rotation operation of the transfer speed setting dial 262, so that the rotation speed is low. Between the minimum number of rotations set by the setting device 266 and the maximum number of rotations set by the high-speed rotation setting device 267, based on the vertical conveyance speed setting value and the detection result of the cutting rotation sensor 288, the vertical conveyance The output rotational speed of the drive electric motor 92 is changed. As a result, a work controller 282 is provided as a means for storing a manual setting value of the transport speed of the vertical transport chain 34 set by manual operation of the transport speed setting dial 262, and automatically increases based on the detection result of the vehicle speed sensor 285. The rate of change of the conveying speed of the vertical conveying chain 34 that is decelerated or decelerated can be changed by the manually set value of the conveying speed of the vertical conveying chain 34, so that the conveying speed adapted to the properties of the cereal can be maintained. In addition, the conveying speed of the vertical conveying chain 34 can be changed in synchronization with the moving speed of the traveling machine body 1 and the movement posture of the cereals generated when the vertical conveying chain 34 is operated at the vehicle speed synchronizing speed can be reduced. It can be easily reduced, and the grain conveying performance of the vertical conveying chain 34 and the feed chain 6 can be improved.

  As shown in FIG. 7, on the input side of the work controller 282, there is a pulling speed sensor 291 that detects the number of rotations of the pulling lateral transmission shaft 48 (operation speed of the grain raising device 223), and the shift of the pulling transmission mechanism 30. A trigger interlock switch 292 that changes the output rotation speed of the electric motor 92 for vertical conveyance driving in relation to the position, and a work mode of either normal cutting work, overturning trimming work, overturning trimming work, or surrounding cutting work. The trigger selection switch 293 selected by the operator's situation determination is connected. Further, on the output side of the work controller 282, a cutting gear shift actuator 294 such as a solenoid for switching the cutting gear shift mechanism 108, a pulling gear shift actuator 295 such as a solenoid for switching the pulling gear shift mechanism 30, and a pull selection switch 293 are selected. A pull-up pattern display 296 that displays the selected operation mode is connected.

  That is, when the normal cutting operation mode is selected by operating the pulling selection switch 293 with the pulling interlock switch 292 turned on, the cutting gear shift actuator 294 and the pulling gear shift actuator 295 are activated, The mowing transmission mechanism 108 and the raising transmission mechanism 30 are switched to the standard speed. In addition, when the overturning mowing work mode is selected by operating the pulling selection switch 293, the cutting speed change actuator 294 and the pulling speed change actuator 295 are operated, and the cutting speed change mechanism 108 is kept at the standard speed. The shift mechanism 30 is configured to be switched to the high speed side.

  As described above, when the pulling speed change mechanism 30 is switched to the standard speed or the high speed side, the vertical conveying speed setting value set by the conveying speed setting dial 262 is corrected based on the pulling speed sensor 291 value. It is configured as follows. As a result, in relation to the drive speed of the culm pulling device 223, the output rotational speed of the vertical transport drive electric motor 92 is changed, the culm transport speed of the vertical transport chain 34 is changed, and the rear tip transport tine 38 is changed. Therefore, it is possible to prevent the stock side of the cereals conveyed by the vertical conveying chain 34 from being delayed or preceded by the tip side of the cereals conveyed by.

  In addition, the structure provided with the threshing device 5 which needs to be always driven at a constant rotational speed to maintain the threshing / sorting performance, in other words, the transmission structure in which the output of the constant rotational speed from the engine 14 is transmitted to the threshing device 5. Therefore, since the engine 14 is operated so as to maintain a substantially constant rotational speed at the maximum output state, the generator 89 can be driven at an optimal rotational speed by the output from the engine 14. That is, the proper output of the generator 89 necessary for the operation of the electric motor 92 for driving the vertical conveyance is reliably maintained, so that the vertical conveyance is performed at a constant rotation speed suitable for cutting the stock of the cereal planted in the field. The drive electric motor 92 can be operated.

  Next, FIG. 8 is a flowchart of the conveyance speed control. With reference to FIG. 8, the conveying operation | work of the harvested grain mash which operates the electric motor 92 for a vertical conveyance drive is demonstrated. When the work switch 273 is on (S1yes), the culm sensor 287 is on (S2yes), and the trigger interlock switch 292 is on (S3yes), the trigger selection switch 293 is operated to select the normal cutting work mode. By doing so (S4yes), the cutting speed change actuator 294 and the pulling speed change actuator 295 are operated, and the cutting speed change mechanism 108 and the pulling speed change mechanism 30 are switched to the standard speed (S5). The normal mowing operation is carried out to harvest the typical cereal.

  Further, when the pulling selection switch 293 is operated to select the overturning mowing work mode (S6yes), the cutting gear shift actuator 294 and the pulling gear shifting actuator 295 are operated, and the cutting gear shifting mechanism 108 is set to the standard speed. Switching and pulling up and switching the speed change mechanism 30 at a high speed (S7), and carrying out an overturning mowing operation for cutting the cereals that have fallen in the forward direction.

  Further, when the pulling selection switch 293 is operated to select the lying down mowing work mode (Yes in S8), the cutting gear shift actuator 294 and the pulling gear shifting actuator 295 are operated to switch the cutting gear shift mechanism 108 at high speed. In addition, the shifting mechanism 30 is raised and switched to the standard speed (S9), and a lying-down mowing operation is carried out to mow the cereal that has fallen toward the traveling machine body 1 side.

  Further, when the pulling selection switch 293 is operated to select the surrounding mowing work mode (S10yes), the cutting speed change actuator 294 and the pulling speed change actuator 295 are operated to switch the cutting speed change mechanism 108 to the standard speed. In addition, the transmission mechanism 30 is raised and switched to a low speed (S11), and a surrounding mowing operation is carried out to mow the cocoon kernels.

  In the normal mowing operation in step 5 or the overturning mowing operation in step 7, the pulling speed sensor 291 value is read (S12), and then the detection value of the vehicle speed sensor 285, the detection value of the cutting rotation sensor 288, The set value of the conveyance speed setting dial 262 is read (S13). The conveyance speed (vehicle speed synchronization speed) of the vertical conveyance chain 34 is calculated from the pulling speed sensor 291 value, the detection value of the vehicle speed sensor 285, the detection value of the cutting rotation sensor 288, and the setting value of the conveyance speed setting dial 262. (S14).

  That is, the set value of the conveyance speed setting dial 262 is corrected by the value of the pulling speed sensor 291. Therefore, in the speed control of the vertical conveyance driving electric motor 92, which will be described later, the vertical conveyance driving electric motor 92 is automatically decelerated and controlled in accordance with the decrease in the operating speed of the grain raising apparatus 223. The cereal conveyance speed of the chain 34 becomes slow. On the other hand, in association with an increase in the operating speed of the culm pulling device 223, the vertical transport driving electric motor 92 is automatically controlled to increase in speed, and the culm transport speed of the vertical transport chain 34 is increased. As a result, even if the operating speed of the culm pulling device 223 changes, the posture of the culm transported by the vertical transport chain 34 is properly maintained.

  On the other hand, when the pulling interlock switch 292 is on (S3yes), the pulling shift actuator 294 and the pulling shift actuator are selected by operating the pulling selection switch 293 and selecting the lying down mowing work mode (S8yes). 295, the cutting transmission mechanism 108 is switched to the high speed side, and the transmission transmission mechanism 30 is switched to the standard speed (S9), and the uncut cereal planted in the field is laid down toward the traveling machine body 1 side. Do the lying down mowing work.

  Further, when the surrounding mowing work mode is selected (S10yes), the cutting gear shift actuator 294 and the pulling speed change actuator 295 are operated, the cutting gear shift mechanism 108 is switched to the standard speed, and the pulling speed change mechanism 30 is slowed down. Switch to the side (S11), and perform a surrounding mowing operation to mow the cocoon kernel at low speed.

  As described above, when the lying-down mowing work in step 9 or the surrounding mowing work in step 11 is being performed, or when the trigger interlock switch 292 is not on (S3no), the pulling speed sensor 291 value is read. Absent. That is, when the overturning mowing work in step 9 or the surrounding mowing work in step 11 is being performed, or when the interlocking switch 292 is not turned on (S3no), the detected value of the vehicle speed sensor 285 and the cutting rotation sensor 288 are detected. And the setting value of the conveyance speed setting dial 262 are read (S13), the pulling speed sensor 291 value, the detection value of the vehicle speed sensor 285, the detection value of the cutting rotation sensor 288, and the conveyance speed setting. From the set value of the dial 262, the transport speed (vehicle speed synchronization speed) of the vertical transport chain 34 is calculated (S14).

  For example, when an upside-down chopped culm and an overlaid culm are mixed and a situation in which a lying-down reaping operation in step 9 or a surrounding reaping operation in step 11 is likely to be complicated is performed, or an interlocking switch is triggered. When a malfunction occurs by turning on 292, the operator can manually change the rotation speed of the electric motor 92 for vertical conveyance drive by manually operating the conveyance speed setting dial 262 based on the visual observation of the operator. For example, even in a cutting operation under special conditions such as a cutting operation of a grain cocoon completely lying in a field or a surrounding cutting operation for cutting a cocoon of a cocoon, the vertical transfer chain 34 is operated at a speed suitable for the cutting operation. Can be operated.

  Further, during the harvesting operation for harvesting the cereals planted in the farm field, the rotational speed of the harvesting input shaft 17 detected by the harvesting rotation sensor 288 increases as the moving speed of the traveling machine body 1 is accelerated. In that case, the output rotational speed of the vertical transport driving electric motor 92 detected by the vertical transport rotation sensor 312 is relatively lower than the rotational speed of the cutting input shaft 17, and the cereal grains transported by the vertical transport chain 34. The stock market side is late and the tip side is in a transport posture. Conversely, when the traveling speed of the traveling machine 1 is reduced and the output rotational speed of the vertical transport driving electric motor 92 becomes relatively higher than the rotational speed of the cutting input shaft 17, the vertical transport chain 34 It becomes a conveyance posture in which the stock side of the cereal bowl conveyed by is preceded and the tip side is delayed.

  The detection value of the vertical conveyance rotation sensor 312 is read (S15), and the conveyance speed of the vertical conveyance chain 34 calculated in step 14 is compared with the detection value (actual conveyance speed) of the vertical conveyance rotation sensor 312. It is determined whether the transport speed of the transport chain 34 should be increased (S16) or whether the transport speed of the vertical transport chain 34 should be decreased (S21). When it is determined that the transport speed of the vertical transport chain 34 should be increased (S16yes), speed increase control for increasing the transport speed of the vertical transport chain 34 is executed (S17). As a result, the conveyance speed of the vertical conveyance chain 34 is accelerated in proportion to the movement speed of the traveling machine body 1, and the vertical conveyance chain 34 can be operated at a speed synchronized with the vehicle speed. 34 is not too slow, the posture of the cereals conveyed by the vertical conveying chain 34 is delayed on the stock side and the tip side is not preceded, and the cereals are clogged or being conveyed during the conveyance. It is possible to prevent the cereals from being disturbed in the conveying posture and improve the conveying performance of the vertical conveying chain 34 and the auxiliary conveying chains 35 and 36.

  When the conveyance speed of the vertical conveyance chain 34 is increased by the speed increase control (S17) described above, the maximum operating speed setting value of the vertical conveyance chain 34 of the high-speed rotation setting device 267 is read (S18). When the conveyance speed of the vertical conveyance chain 34 matches the maximum operating speed setting value of the high-speed rotation setting device 267 and it is determined that the vertical conveyance chain 34 is operating at high speed (S19yes), the vertical conveyance chain 34 is kept constant. The rotation control is executed (S20). Even if the moving speed (vehicle speed) of the traveling machine body 1 is further increased, the conveyance speed of the vertical conveyance chain 34 is maintained at the set value of the high-speed rotation setting device 267 by the constant rotation control (S20) of the vertical conveyance chain 34. . That is, since the vertical conveyance chain 34 is configured to operate at a speed equal to or lower than the rotational speed set by the high-speed rotation setting device 267, even when the moving speed (vehicle speed) of the traveling machine body 1 is extremely high, The conveying speed of the vertical conveying chain 34 does not become too fast, and it is possible to prevent the vertical conveying chain 34 (vertical conveying driving electric motor 92) from operating in an overloaded state. Damage to the transport chain 34 can be reduced.

  On the other hand, during the harvesting operation for harvesting the cereals planted in the field, the rotational speed of the harvesting input shaft 17 detected by the harvesting rotation sensor 288 is reduced by reducing the moving speed of the traveling machine body 1. In that case, the output rotational speed of the vertical transport driving electric motor 92 detected by the vertical transport rotation sensor 312 is higher than the rotational speed of the cutting input shaft 17, and the stock side of the cereals transported by the vertical transport chain 34 is Prior to that, the tip side is delayed.

  When the rotational speed of the cutting input shaft 17 is compared with the output rotational speed of the vertical transport driving electric motor 92, it is determined that the vertical transport driving electric motor 92 needs to be decelerated (S21yes). Deceleration control is performed to decelerate the conveyance driver 302 and decelerate the conveyance speed of the vertical conveyance chain 34 (S22). As a result, the conveyance speed of the vertical conveyance chain 34 is reduced in proportion to the moving speed (vehicle speed) of the traveling machine body 1 by the deceleration control (S22), and the vertical conveyance chain 34 can be operated at a speed synchronized with the vehicle speed. The transport speed of the vertical transport chain 34 does not become too fast compared to the movement speed of 1, and the posture of the cereals transported by the vertical transport chain 34 is not delayed by the head side and the tip side is delayed. It is possible to prevent clogging of grain halves on the way or disturbance of the conveyance posture of corn straw during conveyance, and the conveyance performance of the vertical conveyance chain 34 and auxiliary conveyance chains 35 and 36 can be improved.

  When the conveyance speed of the vertical conveyance chain 34 is decelerated by the above-described deceleration control (S22), the minimum operating speed setting value of the vertical conveyance chain 34 of the low-speed rotation setting device 266 is read (S23). When it is determined that the vertical transport chain 34 is operating at a low speed because the vertical transport chain 34 operates at a low speed, the transport speed of the vertical transport chain 34 matches the minimum operating speed setting value of the low speed rotation setting device 266 (S24yes), constant rotation control (S20) of the vertical conveyance chain 34 is executed. Therefore, even if the moving speed (vehicle speed) of the traveling machine body 1 is further decelerated, the conveyance speed of the vertical conveyance chain 34 is maintained at the set value of the low-speed rotation setting device 266 by the constant rotation control (S20) of the vertical conveyance chain 34. The That is, since the vertical conveyance chain 34 can be operated at a speed equal to or higher than the rotational speed set by the minimum rotational speed setting unit 266, even when the traveling speed (vehicle speed) of the traveling machine body 1 is extremely slow, The conveyance speed does not become too slow, the cereals during conveyance can be prevented from being clogged, and the conveyance performance of the vertical conveyance chain 34 and the auxiliary conveyance chains 35 and 36 can be maintained.

  As described above, the vertical conveyance drive electric motor 92 that operates the vertical conveyance chain 34, the cutting rotation sensor 288 that detects the input rotation speed to the cutting blade device 222, and the rotation speed of the vertical conveyance drive electric motor 92. And a conveyance speed setting dial 262 capable of changing the speed, and the operator manually operates the conveyance speed setting dial 262 while controlling the number of rotations of the electric motor 92 for vertical conveyance drive based on the detection result of the cutting rotation sensor 288. Since the output rotation speed of the driving electric motor 92 is changed to adjust the conveying speed of the vertical conveying chain 34, the vertical conveying chain 34 is adjusted at a speed suitable for the characteristics of the cereal planted in the field. And the conveyance performance of the vertical conveyance chain 34 can be improved. For example, even if the harvesting work is performed under special conditions such as the harvesting operation of the grain straw lying on the field, the transport speed of the vertical transport chain 34 is adjusted to a speed suitable for the harvesting work of the lying grain straw. it can. Further, for example, in a combine that sandwiches and conveys the cereal stock by the feed chain 6 and supplies it to the threshing device 5, it is possible to prevent the cereal head side from being delayed and conveyed, so the required power of the threshing device 5 or threshing Loss etc. can be reduced.

  Further, as a low speed rotation setting device 266 as a minimum rotation number setting device for setting the minimum rotation number of the electric motor 92 for vertical conveyance driving, and as a maximum rotation number setting device for setting the maximum rotation number of the electric motor 92 for vertical conveyance driving. The high-speed rotation setting device 267 is provided, and the output of the electric motor 92 for vertical conveyance drive between the minimum rotation number set by the low-speed rotation setting device 266 and the maximum rotation number set by the high-speed rotation setting device 267. Since the rotational speed can be changed, even when the traveling speed (vehicle speed) of the traveling machine body 1 is extremely low, the transport speed of the vertical transport chain 34 is not too slow, and the Can prevent clogging. Further, even when the traveling speed (vehicle speed) of the traveling machine body 1 is extremely high, the transport speed of the vertical transport chain 34 does not become too fast, and it is possible to prevent the transport posture of the cereals being transported from being disturbed.

  On the other hand, an electric motor 92 for vertical conveyance driving that operates the vertical conveyance chain 34 and a culm sensor 287 as a cutting end sensor that detects the end of reaping of the cereals are provided. When detected by the culm sensor 287, the vertical conveying chain 34 can be configured to operate at a high speed. In this case, when the amount of culm conveyed by the vertical conveying chain 34 is reduced, the vertical conveying chain 34 Due to the high-speed operation of the chain 34, the grain conveying action of the vertical conveying chain 34 can be properly maintained, and spillage or clogging can be prevented from occurring on the conveying terminal side (the grain transferring part) of the vertical conveying chain 34, etc. The transport performance of the vertical transport chain 34 can be improved.

  As described above, the vertical conveyance drive electric motor 92 that operates the vertical conveyance chain 34, the vehicle speed sensor 285 that detects the moving speed of the traveling machine body 1, and the conveyance that speeds up or decelerates the vertical conveyance drive electric motor 92. A speed setting dial 262, and based on the detection result of the vehicle speed sensor 285 and the set value of the transport speed setting dial 262, the vertical transport driving electric motor 92 is automatically controlled to increase or decrease, By operating the conveyance speed setting dial 262, the operator can convey the harvested cereal so that the tip side of the harvested cereal is in a threshing posture slightly ahead of the stock, for example, In the threshing device, it is possible to prevent unhandled residue or breakage of the cocoon from occurring, and to reduce the disorder of the conveying posture of the harvested cereal culm.

  As described above, the conveyance speed setting dial 262 is disposed on the main transmission lever 42 that changes the moving speed of the traveling machine body 1, and the conveyance speed of the vertical conveyance chain 34 is changed by manual operation of the conveyance speed setting dial 262. Since it is configured, the operator can operate the conveyance speed setting dial 262 with the finger of the hand that grips the main shift lever 42 while visually checking the posture of the corn straw during conveyance, and the vertical conveyance follows the change in the conveyance posture of the corn straw. The conveying speed of the chain 34 can be changed quickly, and the conveying posture of the cereal can be easily corrected.

  As described above, the work controller 282 is provided as means for storing the manual setting value of the transport speed of the vertical transport chain 34 set by the manual operation of the transport speed setting dial 262, and automatically based on the detection result of the vehicle speed sensor 285. Since the rate of change of the conveying speed of the vertical conveying chain 34 that is increased or decreased at a high speed is changed by the manually set value of the conveying speed of the vertical conveying chain 34, the conveying speed adapted to the characteristics of the cereal and the like Can be maintained, but the conveyance speed of the vertical conveyance chain 34 can be changed in synchronism with the moving speed (vehicle speed) of the traveling machine body 1 and is generated when the vertical conveyance chain 34 is operated at the vehicle speed synchronization speed. It is possible to easily reduce disturbances in the conveying posture of the cereals to be performed.

  Next, a second embodiment of the present invention will be described with reference to FIG. As shown in FIG. 9, a pulling drive electric motor 95 is provided instead of the pulling speed change mechanism 30 shown in FIG. An output shaft of the pulling drive electric motor 95 is connected to the pulling lateral transmission shaft 48, and the grain raising device 223 is operated by the pulling drive electric motor 95. Similarly to the vertical conveyance driving electric motor 92 of the above-described embodiment, the pulling driving electric motor 95 is connected to the work controller 282 via a pulling driving driver (not shown). Similar to the embodiment shown in FIGS. 7 and 8, the work controller is based on the detection results of the vehicle speed sensor 285, the cutting rotation sensor 288, the pulling speed sensor 291, or the selection of the work mode by the pulling selection switch 293. In accordance with a command output from 282, the rotation speed of the vertical conveyance drive electric motor 92 and the rotation speed of the pulling drive electric motor 95 are automatically controlled.

  That is, the rotational speed of the pulling drive electric motor 95 is automatically determined by the selection of the moving speed (vehicle speed) of the traveling machine body 1 detected by the vehicle speed sensor 285 or the work mode of the pull selection switch 293. By changing the rotation speed of the pulling drive electric motor 95, the rotation speed of the vertical conveyance drive electric motor 92 is automatically changed in conjunction with the change. As in the first embodiment, the operation of the vertical conveying chain 34 is performed based on the detection result of the pulling speed sensor 291 that detects the number of rotations of the pulling lateral transmission shaft 48 in accordance with the change in the operating speed of the grain raising device 223. The speed is changed. Therefore, even if the operating speed of the culm pulling device 223 is changed, it is possible to prevent the posture of the culm conveyed by the vertical transport chain 34 from being disturbed. Moreover, it is possible to prevent clogging from occurring in the grain culm inheriting portion of the vertical conveyance chain 34.

  As is clear from the above description and FIGS. 1, 7, and 8, the traveling machine body 1 including the traveling unit 2 that is operated by the engine 14, and the culm pulling device 223 that captures the culm planted in the field. A cutting blade device 222 that cuts the stock of the cereal planted in the field, and a vertical transport chain 34 as a cereal transporting means that sandwiches and transports the cereal that has been cut by the cutting blade device 222 The combine that is provided is provided with a vertical conveyance drive electric motor 92 that operates the vertical conveyance chain 34 and a pulling speed sensor 291 that detects the operating speed of the grain raising apparatus 223, and the detection result of the pulling speed sensor 291 is provided. Therefore, for example, an uncut mushroom planted in a farm is lying down toward the front of the traveling machine body 1 because the rotational speed of the electric motor 92 for vertical conveyance driving is controlled to change. Aoi Even when the operating speed of the grain raising device 223 is changed in a mowing operation or the like, the conveyance posture of the harvested grain culm in the inheritance part on the feed start end side or the succession part on the feed end side of the vertical conveyance chain 34, or Occurrence of spillage and clogging at these inherited parts can be reduced. Therefore, the grain conveying performance of the vertical conveying chain 34 and the feed chain 6 can be improved. Further, regardless of the nature of the uncut grain culm planted in the field, the chopped cereal is transported by the vertical transport chain 34 so that the tip side of the cropped cereal is in a threshing posture slightly ahead of the stock. Therefore, for example, it is possible to prevent the threshing device 5 from being left unhandled or broken.

  As apparent from the above description and FIGS. 7 and 8, the vertical conveying drive electric motor 92 is automatically decelerated and controlled while the operating speed of the culm pulling device 223 is slow. Since the longitudinal conveyance drive electric motor 92 is automatically controlled to increase in speed in association with the increase in the operating speed of the pulling device 223, the change of the pulling speed of the grain pulling device 223 is changed. Even if the raising conveyance posture of the uncut corn straw changes to the tip delayed posture or the tip leading posture, the change of the raising speed automatically changes the corn straw conveying speed of the vertical conveying chain 34, and the vertical conveyance. The conveying posture of the cereals by the chain 34 can be properly maintained. Therefore, it is possible to easily prevent a disordered conveying posture of the harvested cereal in the inheriting portion on the feed start end side, the succeeding portion on the feed end side, or the like of the vertical transport chain 34. Even if the posture of the uncut grain cocoon in the harvesting operation is either the overturned cocoon or the upright cocoon, it is possible to easily prevent the conveyance posture of the chopped cereal grain held and conveyed by the vertical conveyance chain 34 from being disturbed.

  As is clear from the above description and FIGS. 7 and 8, a cutting speed change actuator 294 as a cutting speed change means for changing the operating speed of the cutting blade device 222, and a pulling speed change that changes the operating speed of the grain raising device 223. A pulling speed change actuator 295 as a means, a pulling selection switch 293 as a pulling selection means for switching the cutting speed change actuator 294 or the pulling speed change actuator 295 according to the cutting conditions of the uncut grain culm planted in the field, Incorporated with a trigger interlocking switch 292 as a trigger interlocking means for turning on and off the automatic control in which the vertical transport driving electric motor 92 automatically increases or decreases speed in relation to the operating speed of the grain raising apparatus 223 Therefore, it is caused by the operator's judgment and the selection switch 293 is operated to cut the reaper of the uncut grain culm. While the cutting blade device 222 or the culm pulling device 223 can be operated at an appropriate speed, the culm transport speed of the vertical transport chain 34 is properly maintained, and the feed start side of the vertical transport chain 34 It is also possible to easily prevent disturbances in the conveying posture of the harvested cereals at the inheriting part of the stub or the succeeding part on the feed end side. In addition, even if the operator changes the cutting condition of the uncut grain halves and operates the interlock switch 292, even if the cutting condition of the uncut grain cereals changes in a complicated manner, the control that follows it can be easily performed. It is possible to maintain the conveyance speed of the harvested cereal meal properly.

It is a side view of the combine for 6-saw cutting of 1st Embodiment of this invention. It is the same top view. It is side surface explanatory drawing of a cutting blade apparatus and a grain haul conveying apparatus. It is a plane explanatory view of a cutting blade device and a cereal conveyance device. It is a drive system diagram of a combine. It is drive system diagrams, such as a mission case and a counter case. It is a functional block diagram of the control circuit of the grain straw transporting means. It is a flowchart of the conveyance speed control of a cereal conveyance means. It is drive system diagrams, such as a grain raising apparatus which shows 2nd Embodiment.

Explanation of symbols

1 traveling machine body 2 traveling crawler (traveling section)
14 Engine 34 Vertical transfer chain
92 Electric motor for vertical conveyance drive 222 Cutting blade device 223 Grain raising device 291 Pulling speed sensor 292 Pulling interlock switch (raising interlocking means)
293 Pull-up selection switch (trigger selection means)
294 Cutting gear shift actuator (cutting gear shifting means)
295 Pulling-up speed change actuator

Claims (3)

A traveling machine body provided with a traveling unit that is operated by an engine, a cereal haul pulling device that takes in cereals planted in a field, a cutting blade device that cuts a stock of cereals planted in a field, and the cutting blade In a combine comprising a corn straw transporting means for sandwiching and transporting the corn straw whose stock has been cut by an apparatus,
An electric motor for conveying drive for operating the cereal conveying means and an elevating speed sensor for detecting the operating speed of the cereal havoking device are provided, and the electric motor for conveying drive is based on the detection result of the eliciting speed sensor. A combine configured to change and control the rotation speed of the motor.   The conveyance drive electric motor is automatically decelerated in connection with the operation speed of the cereal pulling device being slowed, while the conveyance is being made in connection with the increase in the operation speed of the cocoon pulling device. The combine according to claim 1, wherein the drive electric motor is configured to automatically perform speed increase control.   The cutting speed change means for changing the operating speed of the cutting blade device, the pulling speed changing means for changing the operating speed of the grain raising apparatus, and the cutting speed changing means or the cutting speed changing means according to the cutting conditions of the uncut rice grains planted in the field A trigger selection means for switching the trigger transmission means, and a trigger for turning on and off the automatic control for automatically increasing or decreasing the speed of the conveyance drive electric motor in relation to the operating speed of the grain raising apparatus. The combine according to claim 1, further comprising interlocking means.

Images