JP2011152093A - Grain unloader - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grain unloader capable of smoothly transferring grains from a grain lifting tube 4 to the side of a fixed conveyance tube 6. <P>SOLUTION: The grain unloader includes a grain unloading auger G including: the grain lifting tube 4 having a first helix 4b for grain transfer which vertically extends and operates in association with a fifth helix 10b for grain transfer disposed at the bottom within a grain tank 3; and a horizontal conveyance tube 5 having a second helix 5b for grain transfer which horizontally transfers the grains in association with the first helix 4b within the grain lifting tube 4. The termination part of the first helix 4b within the grain lifting tube 4 is formed in the shape of a dual helix, thereby preventing the grains to be transferred from the grain lifting tube 4 to the horizontal conveyance tube 5 from being stuck at the transfer part between the helices so as to improve the conveyance efficiency of the grains in the horizontal conveyance tube 5 better than before. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a grain discharging apparatus such as a combine or a grain-only transport vehicle.

  As disclosed in the prior invention of the present applicant (Japanese Patent Application Laid-Open No. 20001-340014), the conventional combine grain discharging apparatus is configured to store the grain in the lateral direction at the bottom of the Glen tank that temporarily stores the grain. A bottom spiral is provided for conveying, and the grain is conveyed in the longitudinal direction in connection with the bottom spiral, and the cereal cylinder that can be swiveled around the vertical axis, and the grain in the lateral direction in connection with the cereal cylinder. It is configured to provide a threshing auger that includes a fixed conveyance cylinder and a movable conveyance cylinder that are conveyed, can be moved up and down and zoomed in the length direction.

  And in order to arrange the auger outlet at the position to be threshed at the time of threshing work, the whipping tube is turned, the fixed conveyance cylinder and the movable conveyance cylinder are moved up and down, and the movable conveyance cylinder is zoomed out or zoomed out. Further, when the cerealing operation is not performed, such as during the cutting operation or when traveling on the road, the movable transfer cylinder is shortened to be seated and stored in the auger receiver on the combine.

JP 2001-340014 A

In the combine described in Patent Document 1, the grain conveyed to the cereal cylinder by the bottom spiral provided in the lower part of the Glen tank is laterally moved from the cereal cylinder by the respective spirals in the fixed conveyance cylinder and the movable conveyance cylinder. It is conveyed to.
At this time, it can not be said that the transfer of the grain from the lifting kernel to the fixed conveyance cylinder side of the cerealing auger is smoothly performed, and clogging has occurred in the spiral transfer portion. It is an object of the present invention to provide a grain discharging device that can smoothly carry over and carry over the grain from the whipped cylinder of the cerealing auger to the fixed conveying cylinder.

The problems of the present invention are solved by the following configuration.
The invention according to claim 1 is a grain tank (3) for temporarily storing the grain obtained by threshing the cereal, and a grain transporter disposed at the bottom of the grain tank (3). Flour cylinder (4) having five spirals (10b) and a first spiral (4b) for grain transportation extending in the longitudinal direction, operating in conjunction with the fifth spiral (10b) for grain transportation; A horizontal conveying cylinder (2b) having a second helix (5b) for conveying the grain in the horizontal direction in conjunction with the first helix (4b) for conveying the grain in the whipped cylinder (4) 5) In the grain discharging apparatus provided with the cerealing auger (G) including, the terminal part of the first spiral (4b) for conveying the grain in the whipping cylinder (4) is a double helix. This is a grain discharging device.

  The invention according to claim 2 is characterized in that the end portion of the first spiral (4b) for conveying the grain in the milling cylinder (4) is used as the second spiral (5b) for conveying the grain in the horizontal conveying cylinder (5). The grain discharging apparatus according to claim 1, wherein the grain discharging apparatus is arranged so as to overlap with a starting end portion of.

  Invention of Claim 3 provided the blade | wing plate (4d) in the terminal part of the double helix in the 1st helix (4b) for grain conveyance in a whipping kernel (4), The grain discharging apparatus according to 1 or 2.

  The invention according to claim 4 arranges the 4th spiral axis (10a) for grain conveyance in the bottom part in a Glen tank (3), and the 5th spiral (10b) for grain conveyance around it, and this grain The terminal end of the fifth helix (10b) for grain conveyance and the start end of the first helix (4b) for grain conveyance in the milled cylinder (4) are orthogonal to each other in a side view, and Providing a plurality of blades (10c) with an equal mounting angle around the axis of the fourth spiral shaft (10a) for transferring the grain of the grain transfer part from the 5 helix (10b) to the milled cylinder (4) The grain discharging apparatus according to any one of claims 1 to 3.

  According to invention of Claim 1, since the terminal part of the 1st spiral 4b for the grain conveyance in the whipping cylinder 4 was made into the double helix, the grain sent to the horizontal conveyance cylinder 5 from the mashing cylinder 4 Is not clogged by the spiral hand-over part, and the grain conveyance efficiency in the horizontal conveyance cylinder 5 is improved as compared with the prior art.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the end portion of the first spiral 4b for conveying the grain in the whipping cylinder 4 is used as the grain conveying of the horizontal conveying cylinder 5. By overlapping with the second helix 5b for use, the grain conveying action portion of the first helix 4b and the second helix 5b becomes larger, and the grain conveying efficiency is improved as compared with the prior art.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the blade plate 4d is attached to the terminal end side of the first spiral 4b for transporting the grains in the milling cylinder 4. Therefore, it is possible to reduce the return of the grains conveyed from the first spiral 4b in the whipping cylinder 4, and the blade 4d jumps out the grains, so that the grains are conveyed in the horizontal conveying cylinder 5. The efficiency of the system is improved compared to the prior art.

  According to invention of Claim 4, in addition to an effect in invention of Claim 1 thru | or 3, the terminal part of the 5th helix 10b for grain conveyance and the grain conveyance in the whipping cylinder 4 Axis of the first spiral 4b for use in conveying the grain, and the axis of the fourth helical shaft 10a for conveying the grain of the grain takeover part from the fifth spiral 10b for conveying the grain to the milling cylinder 4 Since a plurality of blades 10c are provided at equal mounting angles around the grain, when the grain discharge of the grain auger G is stopped while the grain is being discharged from the grain tank 3, the grain harvesting operation is performed. A space in which the grains falling from the whipping cylinder 4 do not enter can be secured around the fifth helix 10b, and the restart of the grain auger G can be facilitated with a smaller load than in the past.

It is a left view of the combine of embodiment of this invention. It is a figure explaining the structure of the auger part for harvesting of the combine of FIG. It is a block diagram of the grain conveyance part around the Glen tank seen from the body side of the combine of FIG. It is an enlarged view of the internal structure of the terminal part of the spiral in the whipping cylinder of FIG. 3, and a horizontal conveyance cylinder vicinity. It is an enlarged view of the internal structure of the terminal part of a spiral in the cereal cylinder of the modification of FIG. 3, and a horizontal conveyance cylinder vicinity. It is the modification which attached the blade | wing to the terminal part side of the spiral in the cereal cylinder of FIG. It is an enlarged view of the internal structure of the terminal part of the spiral in the cereal cylinder of the modification of FIG. It is a figure which shows the internal structure of the terminal part of the spiral of the Glen tank bottom part of another Example of this invention, the inside of a whipping cylinder, and a horizontal conveyance cylinder vicinity. It is the figure which looked at the whipping cylinder of FIG. 8 from the bottom face of the combine. It is an engine control block diagram of a combine using the common rail diesel engine of the Example of this invention. It is a figure which shows the relationship of the engine output with respect to the engine speed based on the engine control CPU of FIG. It is an engine control block diagram of a combine using the common rail diesel engine of the Example of this invention. It is a perspective view of the spiral simple substance of the combine grain reduction auger of FIG. It is the perspective view seen from another angle of the spiral single-piece | unit of the harvesting auger of the combine of FIG. It is a perspective view which comprises the expansion-contraction spiral of the state in which the several spiral single-piece | unit of the combine graining auger of FIG. 1 was mutually separated most. It is a perspective view which comprises the expansion-contraction spiral of the state with which the some spiral single-piece | unit of the combine grain reduction auger of FIG.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a left side view of a combine according to the present invention, and FIG. 2 is a diagram for explaining the structure of an auger portion for threshing the combine. Referring to FIGS. 1 and 2, the function of the combine is outlined. explain.

  The combine is provided with a cockpit 40 on the chassis 2 having the crawler 1, and the operator steers and cuts the harvested culm by the operator's seat 40. After being transported by the supply and transport device, the threshing device 37 for threshing this, the Glen tank 3 for storing the threshed grain, and the fifth spiral 10b for grain transportation provided at the bottom of the Glen tank 3 are discharged backward. It is comprised from the grain reduction auger G etc. which convey the grain to be carried out of the combine.

  The grain auger G is connected to the rear end portion of the fifth spiral 10b for conveying the grain and is connected to the cereal cylinder 4 and the cereal cylinder 4 that are transported upward, and the lateral conveyance that conveys the grain in the lateral direction. The cylinder 5 includes a fixed conveyance cylinder 6 whose length is connected to the horizontal conveyance cylinder 5 and a movable conveyance cylinder 7 which can change the length connected to the fixed conveyance cylinder 6. An auger discharge port 9 is provided at the distal end of the movable transfer cylinder 7. The connecting portion of the fixed conveyance cylinder 6 with the horizontal conveyance cylinder 5 is rotatable around the horizontal conveyance cylinder 5.

  The combine shown in FIG. 1 has a pair of left and right crawlers 1 molded into an endless belt made of a flexible material such as rubber at the bottom of the chassis 2, and the crawler 1 slightly sinks in wet fields as well as dry fields. A cutting device 34 is mounted on the front of the chassis 2, and an engine 43 (FIG. 10), a grain tank 3, a threshing device 37, and a cockpit are mounted on the upper part of the chassis 2. 40.

  The grain stored in the grain tank 3 of the combine is discharged from the fifth spiral 10b for transporting the grain. The fifth spiral 10b for transporting the grain is pivoted to the bottom of the grain tank 3 as shown in FIG. The starting end side is connected to the transmission shaft 11 outside the machine via the clutch device 12, the terminal end side is extended to the lower part of the milling cylinder 4, and is attached to the interior first spiral shaft 4 a. The first spiral 4b is connected to the starting end.

And the cerealing auger G is connected to the upper side of the above-mentioned whipping cylinder 4, and the fixed conveying cylinder 6 that is rotatably connected to the horizontal conveying cylinder 5 but does not expand and contract in the spiral axis direction, Although it is comprised from the movement conveyance cylinder 7 connected to this, the structure is demonstrated concretely below.
FIG. 3 is a configuration diagram of the grain transport unit around the Glen tank as seen from the side of the machine body. A horizontal conveying cylinder 5 is connected to the top of the whipping cylinder 4, a fixed cylinder 6 is connected to the tip of the horizontal conveying cylinder 5, and the fixed cylinder 6 rotates around the second helical shaft 5 a of the horizontal conveying cylinder 5. It is free to move. FIG. 4 shows an enlarged view of the inner structure in the vicinity of the terminal end of the first spiral 4b and the horizontal conveying cylinder 5 in the whipping cylinder 4 of FIG.

  A second bevel gear 5c and a third bevel gear 5d are provided at both ends of the second spiral shaft 5a of the horizontal conveying cylinder 5, and a first bevel gear 4c is also provided at the terminal end of the first spiral axis 4a of the milling cylinder 4. The first bevel gear 4c meshes with the second bevel gear 5c at one end of the second helical shaft 5a. The third bevel gear 5 d at the other end of the second spiral shaft 5 a of the horizontal transport cylinder 5 is meshed with the fourth bevel gear 6 c at the end of the third spiral shaft 6 a of the fixed transport cylinder 6.

  Here, as shown in the block diagram of the grain conveying unit around the Glen tank in FIGS. 3 and 4, one of the first spirals 4b in the takeover part of the first spiral shaft 4a of the milled cylinder 4 with the horizontal conveying cylinder 5 is shown. When the portion is formed in a double helix configuration with the first helical shaft 4a as the center, the grains sent from the whipping cylinder 4 to the horizontal conveying cylinder 5 are not clogged by the spiral takeover part, and the grains in the horizontal conveying cylinder 5 The transport efficiency is improved as compared with the prior art.

5 shows an enlarged view of a modification of the internal structure in the vicinity of the end portion of the first helix 4b and the horizontal conveying cylinder 5 in the whipping cylinder 4 of FIG. A part of the first spiral 4b of the takeover portion with the horizontal transport cylinder 5a of 4a is configured to have a double spiral configuration around the first spiral axis 4a and overlapped with the second spiral 5b of the horizontal transport cylinder 5. May be.
In this case, the grain conveying action portion of the overlapped first spiral 4b and second spiral 5b is larger, and the grain conveying efficiency is improved as compared with the conventional one.

  Moreover, as shown in FIG. 3, while making a part of 1st spiral 4b of the inheritance part with the horizontal conveyance cylinder 5 of the 1st spiral axis 4a of the cerealing cylinder 4 into a double spiral structure centering on the 1st spiral axis 4a, It can also be set as the structure which does not overlap with the 2nd helix 5b of the horizontal conveyance cylinder 5. FIG. In this case, it becomes possible to keep the distance between the upper part of the first spiral 4b of the milling cylinder 4 and the second spiral 5b of the horizontal conveying cylinder 5 appropriately, and the terminal end of the first spiral axis 4a of the milling cylinder 4 By making the part a double helix, the grain conveyance capability is improved, so that satisfactory grain conveyance can be performed without overlapping.

  As shown in FIG. 6, by attaching a blade 4 d to the terminal end side of the first spiral 4 b in the whipping cylinder 4, the return of the grains conveyed from the first spiral 4 b in the whipping cylinder 4 is reduced. Moreover, since the blade 4d jumps out the grain by attaching the blade 4d to the first spiral 4b in the whipping cylinder 4, the efficiency of the grain conveyance in the horizontal conveyance cylinder 5 is conventional. More improved.

  When the rotation trajectory of the blade 4d provided on the terminal end side of the first helix 4b of the whipping cylinder 4 is arranged so as to partially overlap with the rotation trajectory of the second helix 5b of the horizontal conveying cylinder 5, the grain due to the helix Since there is no space without the transporting action, the grain transporting efficiency can be improved as compared with the prior art, and the grain discharge time can be shortened.

  Contrary to the configuration shown in FIG. 6, the first spiral 4 b of the cereal cylinder 4 as shown in FIG. 7 is an enlarged view of the internal structure in the vicinity of the end part of the first spiral 4 b in the cereal cylinder 4 and the horizontal conveying cylinder 5. The rotation trajectory of the blade 4d provided on the terminal end side may be arranged so as not to overlap the rotation trajectory of the second spiral 5b of the horizontal conveyance cylinder 5. In this case, the distance between the upper part of the first spiral 4b of the whipping cylinder 4 and the second spiral 5b of the horizontal conveying cylinder 5 can be kept moderate, and the grains sent by the blades 4d are transferred to the horizontal conveying cylinder. In order to suppress rebounding by the second second spiral 5b, the grain conveyance efficiency can be improved as compared with the prior art.

  Moreover, in the structure shown in the figure which looked at the inside of the whipping cylinder 4 of FIG. 8 from the side of a combine, and the figure which looked at the whipping cylinder 4 of FIG. 9 from the bottom face of the combine, all the 1st spirals 4b in the whipping cylinder 4 are two. Further, the diameter of the fifth helix 10b for conveying the grain is the same as the diameter of the first helix 4b in the whipping cylinder 4, and the end portion of the fifth helix 10b for conveying the grain and the mashing cylinder 4 is arranged so as to be orthogonal to the start end of the first spiral 4b for conveying the grain in a side view, and is the end of the fifth spiral 10b for conveying the grain on the side of the milling cylinder 4, Four blades 10c were provided on the fourth helical shaft 10a for conveying the grains at an equal mounting angle around the axis of the fourth helical shaft 10a for conveying the grain of the grain takeover part to the kernel 4.

In the configuration in which one or two blades 10c are equally arranged around the fourth spiral shaft 10a for conveying the grain in the conventional grain take-up portion to the milled cylinder 4, the grain discharge from the glen tank 3 When the cereal harvesting operation is stopped by stopping the discharge of the cereal auger G on the way, the grain is fully filled in the terminal end of the fifth spiral 10b for conveying the grain at the bottom of the Glen tank, There was a bug that could not be started.
However, by adopting the configuration shown in FIG. 8, the space separated by the fifth spiral 10b for grain conveyance and the blade 10c around the fifth spiral 10b for grain conveyance at the bottom of the Glen tank, that is, the cereal A space in which the grains falling from the cylinder 4 do not enter can be secured, the above-mentioned problems can be solved, and the grain conveyance efficiency from the fifth spiral 10b for grain conveyance to the helix of the milled cylinder 4 has been conventionally More improved.

Next, the fixed conveyance cylinder 6 and the movable conveyance cylinder 7 will be described.
The fixed conveyance cylinder 6 has a base connected to a horizontal conveyance cylinder 5 connected to the top of the cereal cylinder 4, a distal end portion is provided to extend outwardly, and is provided in the cylinder for third grain conveyance. It is set as the structure which conveys the grain inherited from the whipping cylinder 4 with the spiral 6b.

  The movable conveyance cylinder 7 is provided with an auger discharge port 9 opened at the tip, and the base side is inserted and fitted from the distal side of the fixed conveyance cylinder 6 to be slidably connected. Further, as shown in FIG. 2, the fourth helix 7a for conveying the grain has a front end bearing at a position above the auger discharge port 9 and a rear portion extending toward the fixed conveying cylinder 6 in the movable conveying cylinder 7. A transmission shaft 16 slidably inserted into the third spiral shaft 6 a for conveying the grain is provided on the shaft, and a large number of spiral single members 17 (FIG. 13) are slidably fitted to the transmission shaft 16. Thus, the distance between each other can be adjusted.

  In addition, as shown in FIG. 2, the expansion / contraction drive device 23 is forced to connect the base end portion of the auger expansion / contraction spiral shaft 25 to the expansion / contraction drive motor 24 installed at the upper position of the cereal cylinder 4 via the reduction device. It is configured to drive. The moving device 26 is provided so as to be forcibly moved in the axial direction via a transmission pin engaged with the helical groove of the auger expansion / contraction helical shaft 25, and is integrated with the base side of the fixed conveying cylinder 6. Are connected to each other.

  As shown in FIG. 2, the expansion / contraction drive device 23 is provided with limit sensors S1 and S2 on the most contracted side and the most expanded side of the grain auger G, respectively, and the moving device 26 uses the limit sensor S1 or the limit sensor S2. When reaching the value, the expansion / contraction drive motor 24 is automatically stopped.

  Further, although the position of the front end portion of the movable transport cylinder 7 can be variously changed, the position of the front end portion of the grain auger G is often stored in the auger receiver 35 at an intermediate position of the length of the zoom auger.

  The expansion / contraction drive motor 24 is driven in the forward or reverse direction based on an ON operation of a switch (extension / contraction switch) provided on an operation panel (not shown) of the cockpit 40, and is auger expansion / contraction spiral shaft 25. Is configured such that when the auger expansion / contraction spiral shaft 25 rotates in the forward direction, the movable transfer cylinder 7 is extended via the engaged moving device 26, and when it rotates in the reverse direction, it is forcibly moved in the reduction direction. It is said.

  In this way, the moving conveyance cylinder 7 is expanded and contracted along the fixed conveyance cylinder 6 in a state of being fitted to the fixed conveyance cylinder 6, and the position of the auger discharge port 9 at the distal end is set at the base of the cerealing auger G. It is set as the structure which can select the fall position of a grain by keeping away from, or approaching, and adjusting with respect to the whipping cylinder 4. FIG.

  In FIG. 2, the elevating hydraulic cylinder 27 raises and lowers the cerealing auger G, and the auger turning motor 28 is provided on the outer peripheral portion of the whipping cylinder 4 that meshes with the turning gear 29 provided on the rotating shaft thereof. The milling cylinder 4 is turned via

  As shown in FIG. 2, the support roller 31 is pivotally provided below the base position of the movable transport cylinder 7 so as to support the peripheral surface of the fixed transport cylinder 6 while rolling. Further, a guide wheel 32 is provided above the base position of the movable transfer cylinder 7, and a guide rail (not shown) for guiding the guide wheel 32 is provided in the longitudinal direction of the fixed transfer cylinder 6.

  When the combine configured as described above is advanced while being operated, the planted cereal is harvested by the reaping device 34 (FIG. 1) as the combine operation, and then conveyed to the start end of the threshing device 37, and the feed chain. The threshing is selected while being conveyed at 38. The grain that has been threshed and sorted by the threshing device 37 is temporarily stored in the Glen tank 3, and when the grain in the Glen tank 3 is full, the grain auger G is detached from the auger receiver 35, and the grain The grain is discharged from the auger G to the loading platform such as a truck.

  At this time, when the position of the auger discharge port 9 is short, the movable transfer cylinder 7 is extended so that the grain is discharged further. Moreover, the moving conveyance cylinder 7 is expanded and contracted so that the grains are uniformly discharged to the truck bed. In this way, when the grain in the Glen tank 3 has been discharged, the cereal auger G is stored in the auger receiver 35 again.

The 4th helix 7a for the grain conveyance of the movement conveyance cylinder 7 shown in FIG. 2 consists of the several spiral single-piece 17 made from a synthetic resin.
FIG. 13 is a perspective view of the spiral simple substance 17. FIG. 14 shows a perspective view of the single helix 17 viewed from another angle. FIG. 15 shows a side view of the fourth spiral 7a for transporting the grain that is the most distant from each other while the plurality of spiral single members 17 are connected to each other. FIG. However, the side view which comprises the 4th spiral 7a for the grain conveyance of the state which mutually approached is shown.

  As shown in FIGS. 13 and 14, the single helix 17 has a cylindrical bearing boss 18 that is slidably fitted to the transmission shaft 16 (FIG. 15) and is supported and fixed to the outer circumferential surface thereof. It comprises a spiral-shaped spiral body 20 that goes around the outer circumference of the boss 18 and a spacer 19 for connecting the spiral body 20 to the bearing boss 18. The spacer 19 is connected to both ends of the bearing boss 18, and the spiral body 20 is connected and fixed to substantially both ends of the outer peripheral surface thereof. The spacer 19 constitutes a connection portion for connecting and fixing the spiral body 20 to the bearing boss 18, and is configured to be able to move away from and approach each other while connecting the plurality of spiral single members 17.

  Therefore, the spacer 19 has a spiral shape so as to make one round of the outer periphery of the bearing boss 18 like the spiral body 20, and as shown in FIG. In some cases, the thick portions 19a (FIG. 13) of the spacers 19 adjacent to each other can be engaged with each other. Further, as shown in FIG. 13, the length A of the bearing boss 18 is about half of the length B of the spacer 19, and the inner diameter of the spacer 19 is slightly larger than the outer diameter of the bearing boss 18. As shown in FIG. 16, when the spiral body 20 is closest to the adjacent spiral body 20, the spiral single body 17 can be brought close to the adjacent bearing boss 18 so that there is no gap. At this time, the grains between the outer periphery of the bearing boss 18 and the inner periphery of the spacer 19 can escape from the hole 19b provided in the spacer 19 to the outside.

  In a combine equipped with a conventional diesel engine, the grain discharge time is determined by the number of rotations of the auger spiral at the time of grain discharge. It was consuming energy.

  Therefore, as shown in the control block of FIG. 10, when the common rail diesel engine 43 is mounted and the grain is discharged from the grain auger G, the fuel injection amount of the common rail diesel engine 43 is reduced so that the injection 46 is reduced. Therefore, it is possible to maintain the engine speed without reducing the fuel injection amount and generating unnecessary horsepower, so that useless energy is not consumed.

  At this time, if it is determined that the engine speed detection value from the engine speed sensor (= engine load sensor) 42 is lower than a preset reference value, an engine control configuration for reducing the number of ignition cylinders of the common rail diesel engine 43 may be adopted. it can.

  If it is determined that the detected value of the engine speed from the engine speed sensor (= engine load sensor) 42 is lower than a preset reference value, the number of ignition cylinders in the engine control configuration for reducing the number of ignition cylinders of the common rail diesel engine 43 is set. If the engine load sensor 42 determines that the engine load is lower than a preset reference value (the same value as the reference value) even after the reduction, the engine control CPU 44 performs control to reduce the fuel injection amount of the engine 43. Thus, by reducing the number of ignition cylinders and further reducing the fuel injection amount, the number of revolutions of the engine 43 can be maintained without generating unnecessary horsepower, and useless energy is not consumed.

In the engine speed control configuration shown in FIG. 10, the engine control CPU 44 sends the fuel injection amount from the injector 46, the engine speed from the engine speed sensor (= engine load sensor) 42, and the cylinder position sensor of the engine 43 to be used. The cylinder position to be used from 47 (the cylinder is stopped so that the interval of the ignition timing becomes average) is input, and further, the clutch device 12 (FIG. 2) for discharging the grain from the grain auger G An ON / OFF signal of the grain discharge switch 48 for operation control is input to the combine CPU 50. An engine load signal from the combine CPU 50 created based on the on / off signal of the grain discharge switch 48 is input to the engine control CPU 44, and the engine control CPU 44 controls the engine speed according to the load during the auger operation.
FIG. 11 shows the relationship of the engine output to the engine speed based on the engine control CPU 44, and shows the relationship of the high fuel injection amount.

  Since the sensor 42 for detecting the engine load is provided by adopting the above configuration, when the kernel is discharged from the grain auger G, the fuel injection amount of the common rail diesel engine 43 is reduced, and the engine load sensor 42 is If it is determined that the engine load is lighter than the preset standard load, the number of ignition cylinders of the engine 43 can be reduced.

  Also, in a combine equipped with a conventional diesel engine, the rotation speed of the threshing device 37 at the time of harvesting the cereal must be kept constant even at low speed work. I use it. However, setting the engine close to full rotation generates unnecessary horsepower, and wastes energy.

  Therefore, the threshing load sensor 52 for detecting the rotation speed of the barrel and the threshing sensor 53 for detecting the operation of the threshing clutch (not shown) are provided in the threshing device 37 by the configuration shown in the control block of FIG. If the sensor 52 determines that the load is lighter than a preset reference value, the fuel injection amount of the common rail diesel engine 43 can be reduced. At this time, even if the fuel injection amount is reduced, if it is determined by the load detection signal of the threshing load sensor 52 that the threshing load based on the rotation speed of the barrel is lighter than the set value, engine control for reducing the number of cylinders may be performed. it can.

  In this way, by installing the common rail diesel engine 43, the injection 46 can be easily controlled. Therefore, by reducing the fuel injection amount and reducing the number of cylinders, the rotational speed of the engine 43 can be reduced without generating unnecessary horsepower. It can be maintained and wasteful energy is not consumed.

If it is determined that the detection value of the threshing load sensor 52 is lower than a preset load reference value, the engine control configuration is configured to reduce the number of firing cylinders of the common rail diesel engine 43 based only on the detection value of the threshing load sensor 52. You can also. Further, if it is determined that the detected value of the threshing load sensor 52 is lower than the preset reference value even if the number of ignition cylinders is further reduced, the fuel injection amount of the common rail diesel engine 43 can be reduced.
Thus, by reducing the number of ignition cylinders and reducing the fuel injection amount, the number of revolutions of the engine 43 can be maintained without generating unnecessary horsepower, and useless energy is not consumed.

  Conventionally, the auger discharge clutch device 12 and the threshing clutch (not shown) are manually operated independently. However, when the auger discharge clutch is engaged, the threshing clutch is automatically turned off. When the device 12 is turned off and the threshing clutch is configured to automatically enter, when the threshing auger G is activated and the grain is discharged, the threshing device 37 does not operate and is safe. Moreover, wasteful energy consumption can be eliminated by operating the threshing device 37 for the first time when the grain is not discharged from the cereal auger G.

DESCRIPTION OF SYMBOLS 1 Crawler 2 Chassis 3 Glen tank 4 Flouring cylinder 4a 1st spiral shaft 4a
4b 1st spiral 4c for grain transport 4c 1st bevel gear 4d vane plate 5 horizontal transport cylinder 5a 2nd spiral shaft 5b 2nd spiral 5c for grain transport 2nd bevel gear 5d 3rd bevel gear 6 fixed transport cylinder 6a 3rd spiral Axis 6b Third spiral 6c for grain conveyance 4th bevel gear 7 Moving conveyance cylinder 7a Fourth spiral 9 for grain conveyance Auger outlet 10a Fourth spiral axis 10b for grain conveyance Fifth spiral for grain conveyance 10c Blade 11 Transmission shaft 12 Clutch device 16 Transmission shaft 17 Spiral unit 18 Bearing boss 19 Spacer 19a Spacer thick portion 19b Hole 20 Helical body 23 Telescopic driving device 24 Telescopic driving motor 25 Auger telescopic helical shaft 26 Moving device 27 Lifting hydraulic cylinder 28 auger turning motor 29 turning gear 30 drive gear 31 support roller 32 guide wheel 34 mowing device 35 auger receiver 37 threshing device 38 Feed chain 40 Pilot seat 42 Engine load detection sensor 43 Engine 44 Engine control CPU
46 Injector 47 Cylinder position sensor 48 Discharge switch 50 Combine CPU
53 Threshing clutch sensor 52 Threshing load sensor G Threshing auger S1, S2 Limit sensor

Claims (4)

A Glen tank (3) for temporarily storing the grains obtained by threshing the cereal, a fifth spiral (10b) for conveying the grains arranged at the bottom of the Glen tank (3), A whipping cylinder (4) having a first spiral (4b) extending in the longitudinal direction that operates in conjunction with the fifth helix (10b) for conveying the grain, and the whipping cylinder (4) Graining auger (5) including a horizontal conveying cylinder (5) having a second spiral (5b) for conveying the grain in a lateral direction in conjunction with the first spiral (4b) for conveying the grain G) with a grain discharging device comprising:
A grain discharging apparatus characterized in that the end of the first spiral (4b) for transporting the grains in the milled cylinder (4) is a double helix.   The end part of the first helix (4b) for conveying the grain in the milled cylinder (4) is overlapped with the starting end of the second helix (5b) for conveying the grain of the horizontal conveying cylinder (5). The grain discharging apparatus according to claim 1, wherein the grain discharging apparatus is arranged.   Kernel discharge according to claim 1 or 2, characterized in that a vane (4d) is provided at the end of the double helix in the first helix (4b) for conveying the kernel in the whipping cylinder (4). apparatus.   The 4th spiral axis (10a) for grain conveyance is arranged in the bottom part in a Glen tank (3), and the 5th spiral (10b) for grain conveyance is arranged around it, and the 5th spiral for grain conveyance ( The end part of 10b) and the first end part of the first spiral (4b) for conveying the grain in the cereal cylinder (4) are orthogonally crossed in a side view, and the cereal is raised from the fifth spiral (10b) for conveying the grain. A plurality of blades (10c) are provided at equal mounting angles around the axis of the fourth spiral shaft (10a) for transferring the grain of the grain transfer part to the tube (4). The grain discharging apparatus according to any one of 3.

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