JP6307320B2 - General purpose combine - Google Patents

Description

  The present invention relates to a general-purpose combine capable of harvesting multiple types of crops.

  There is known a general-purpose combine that performs threshing and sorting by putting all the cut stems into a threshing portion (for example, see Patent Document 1). This kind of general-purpose combine has many types of crops that can be harvested compared to self-decomposing combine, and is used for harvesting, for example, soybean, buckwheat, wheat, rice, and the like.

  The general-purpose combiner is provided with one or a plurality of crop-specific adjustment elements that are adjusted for each crop to be harvested in order to support a plurality of types of crops. For example, crops include rotation speed settings for barrels and tangs, whether automatic control is used / not used, automatic control condition settings, receiving nets with different meshes, and bottom plates with different holes. Included in another adjustment factor.

JP-A-10-215644

  By the way, the general purpose combine shown by patent document 1 is equipped with the control means which keeps the height of the airframe to the target height while keeping the left-right inclination angle of the airframe at the target angle, and the target according to the type of crop to be harvested. It is configured to change the height. According to such a general-purpose combiner, when harvesting soybeans with large irregularities in the field compared to rice and wheat, by increasing the target ground height of the aircraft, the bottom surface of the aircraft and the bottom of the cutting unit can be brought into contact with the ground. It can be avoided.

  However, in soybean, there is a fruit (sheath) not only on the tip side like rice and wheat but also near the root of the stock, so it is necessary to reduce the cutting height of the cutting part. Therefore, even if the aircraft's target ground height is set higher, if the pretreatment section tilts left or right according to the left / right inclination of the aircraft, the pretreatment section contacts the ground and trims mud, causing dirt. There was an inconvenience. On the other hand, when the cutting height of the preprocessing unit is set high, there is a problem that uncutting occurs.

The present invention was created in order to solve these problems in view of the above circumstances, and the invention of claim 1 is a general-purpose combine capable of harvesting rice, wheat and soybeans. The horizontal control means for maintaining the horizontal inclination angle of the machine body at a predetermined angle, the automatic cutting height control means for automatically controlling the cutting height of the cutting part, and the control parameters of the horizontal control means are changed according to the type of crop. Control parameter changing means, the control parameter changing means uses the automatic cutting height control means when harvesting soybeans , changes the control parameters of the automatic cutting height control means so as not to use when harvesting rice and wheat, and soy The general-purpose combine is characterized in that the control parameter of the horizontal control means is changed so that the responsiveness of the horizontal control means at the time of harvesting is higher than the responsiveness at the time of harvesting rice and wheat.
The invention according to claim 2 is the general-purpose combine according to claim 1, wherein the control parameter changing means changes a reaction speed of the horizontal control means.
The invention according to claim 3 is the general-purpose combine according to claim 1, wherein the control parameter changing means changes the operating speed of the horizontal control means.
The invention according to claim 4 is the general purpose combine according to claim 1, wherein the control parameter changing means changes the sensitivity of the horizontal control means.

According to the invention of claim 1, the control parameter of the horizontal control means is changed so that the responsiveness of the horizontal control means at the time of soybean harvesting is higher than the responsiveness at the time of harvesting rice and wheat. Even if the cutting height is set low so that there is no leftover during harvesting, the left and right inclinations of the aircraft and the cutting part can be quickly corrected to avoid contact with the ground of the cutting part due to the left and right inclinations. In addition, mud cutting can prevent generation of dirt and uncut residue.
According to the invention of claim 2, the responsiveness of the horizontal control means can be enhanced by changing the reaction speed of the horizontal control means.
According to the invention of claim 3, the responsiveness of the horizontal control means can be enhanced by changing the operating speed of the horizontal control means.
According to the invention of claim 4, the responsiveness of the horizontal control means can be enhanced by changing the sensitivity of the horizontal control means.

It is a side view of a general purpose combine. It is a top view of a general purpose combine. It is a figure which shows the structure of a cutting height sensor, (A) is a principal part top view of a cutting part, (B) is a principal part side view of a cutting part. It is a side view which shows the internal structure of a threshing part. It is a sectional side view of a rocking sorter. It is a side view of a rocking sorter. It is a transmission diagram which shows the transmission structure of a general purpose combine. It is a figure which shows a barrel driving case, (A) is a plane sectional view of a barrel driving case, (B) is a sectional side view of a barrel driving case. It is a top view of an operation part. (A) is a plan view of a cutting height adjustment dial, (B) is a plan view of a switch panel. It is a comparison table | surface which shows the combination pattern of the adjustment element according to crops. It is a figure which shows the most horizontal spiral bottom plate which is one of the adjustment elements according to crops, (A) is a perspective view which shows the most horizontal spiral bottom plate with a hole, and (B) is the most horizontal spiral bottom plate without a hole. It is a perspective view shown. It is a figure which shows a driving | running | working part, (A) is a side view of the driving | running | working part which shows a vehicle height lowered state, (B) is a side view of the driving | running | working part which shows a vehicle height raising state. It is a block diagram which shows the input / output of a control part. It is a flowchart which shows a main routine. It is a flowchart which shows the crop discrimination control 1. It is a flowchart which shows the crop discrimination control 2. 3 is a flowchart showing automatic control switching 1; 3 is a flowchart showing automatic control switching 2; 3 is a flowchart showing automatic control switching 3; It is a flowchart which shows engine load warning control. It is a flowchart which shows fan forward / reverse control. It is operation | movement explanatory drawing of fan normal / reverse rotation control. It is a flowchart which shows take-in reel control. It is action | operation explanatory drawing of a take-in reel control. It is a flowchart which shows horizontal control. It is a table | surface figure which shows the control parameter of horizontal control.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2, reference numeral 1 denotes a general-purpose combiner, and the general-purpose combine 1 includes a cutting unit 2 that cuts off the stems and a threshing unit 3 that threshs and sorts the grains from the stems that are put into the whole basket. , A grain tank 4 for storing the selected grain, a discharge auger 5 for discharging the grain in the grain tank 4 to the outside of the machine, a post-processing unit 6 for post-processing the threshed waste, and operation A driving unit 7 on which a person gets on and a crawler type traveling unit 8 are provided.

  The cutting unit 2 includes a header 9 that is connected to the front end of the machine body so as to be able to move up and down, a divider 10 that weeds uncut stems at the front end of the header 9, a cutting blade 11 that cuts off uncut stems, A reel 12 for scooping the cut stem and the cut stem, an auger 13 for collecting the scraped stem to a predetermined position in the width direction, and transporting the stem to the threshing unit 3 by the auger 13 And the feeder 14 which throws all the straw into the threshing part 3 is comprised.

  As shown in FIG. 3, a cutting height sensor 15 is provided at the bottom of the cutting unit 2 to detect the cutting height of the stalks by the cutting unit 2. The cutting height sensor 15 of the present embodiment includes a pair of left and right grounding type detection bodies 16 that rotate up and down according to the cutting height, and a potentiometer 17 that detects the rotation angle of each grounding type detection body 16. The detected value is used in automatic cutting height control for automatically controlling the cutting height of the cutting unit 2. The automatic cutting height control in the general-purpose combine 1 is usually effective when harvesting beans and is not used when harvesting rice or wheat.

  That is, when cutting the beans, if the cutting unit 2 thrusts into the ground, mud is cut together to cause dirt, so automatic cutting height control is used to avoid this. And since the field of beans has cocoons, a wide grounding type detector 16 is used.

  On the other hand, it is possible to use automatic cutting height control even when harvesting rice or wheat, but because the ground contact detector 16 is wide, it is difficult to detect cutting height with high accuracy in contact with the remaining crop. For some reason, the automatic cutting height control is rarely used for harvesting rice and wheat. Therefore, the use / non-use of the automatic cutting height control can be used as a crop discrimination element.

  As shown in FIG. 4, the threshing unit 3 includes a handling chamber 18 into which all the cutting stalks are put, and a sorting chamber 19 that is disposed below the handling chamber 18 and receives the grains leaked from the handling chamber 18. The grain selected in the sorting room 19 is transferred to the grain tank 4 through the first cerealing device 20.

  The handling chamber 18 is disposed along the lower side of the handling barrel 22 by hooking and rotating the stems with the handle 21 protruding from the outer periphery, and the grains that have been shattered by rubbing with the stems are crushed. A receiving network 23 to be leaked and a dust discharge port 24 for discharging the waste reaching the terminal end of the handling chamber 18 without leaking from the receiving network 23 are provided.

  The sorting chamber 19 collects the first thing, the swing sorter 25 that swings and sorts the grains that have leaked from the receiving net 23, the red pepper 26 that raises the sorting wind in front of the swing sorter 25, and the like. The first horizontal spiral 27 and the second horizontal spiral 28 for recovering the second thing are provided. The first thing recovered by the first horizontal spiral 27 is the grain tank via the first cerealing device 20. The second product that has been transferred to 4 and collected by the second horizontal spiral 28 is returned to the inside of the handling chamber 18 or the swinging sorter 25 via the second cerealing device 29.

  The swing sorter 25 includes a grain pan 30 that sequentially conveys the grains that have leaked from the receiving net 23, a chaff sheave 31 that sifts and sorts the grains behind the grain pan 30, and a grain that has leaked from the chaff sheave 31. Further, it is a swing assembly provided with a grain sieve 32 for screening and is reciprocally swung continuously at a predetermined cycle by a swing mechanism (not shown).

  As shown in FIGS. 5 and 6, the chaff sheave 31 includes a plurality of fins 31 a arranged in parallel at a predetermined interval in the front-rear direction. Each fin 31a is inclined in a front-rear and a rear-high state, and the sorted matter is caused to leak from the gaps between the fins 31a while the sorted matter is transferred rearward as the swinging sorter 25 swings. The sort that has leaked here is collected as the first item via the Glen sieve 32, and the sort that has not leaked is collected as the second item. Each fin 31a is configured to be able to rotate back and forth with the upper end side as a fulcrum, and is connected to a fin drive motor 34 via a cam mechanism 33, and each fin 31a is driven by the fin drive motor 34. The gap (fin opening) between the fins 31a in the chaff sheave 31 can be changed based on the angle change of 31a. Then, by performing automatic sorting control for automatically increasing / decreasing the fin opening according to the amount of the sorted matter (detected value of the sorted matter amount detecting means), the amount of the sorted matter leaked from the chaff sheave 31 and the second reduced sort. The balance of the quantity is made appropriate, and it becomes possible to perform a highly accurate sorting process.

  As shown in FIG. 7, the general-purpose combiner 1 includes an engine 35 that generates traveling power and work power. The power of the engine 35 is the cutting unit 2, the threshing unit 3, the discharge auger 5, and the post-processing unit 6. And it is transmitted to the traveling unit 8.

  A handling cylinder drive case 36 is interposed in the power transmission path from the engine 35 to the handling cylinder 22 of the threshing unit 3, and the handling cylinder according to the switching operation of the handling cylinder shift lever 37 in the handling cylinder drive case 36. The rotational speed of 22 can be switched between two stages of high speed / low speed. Incidentally, as shown in FIG. 8, the cylinder drive case 36 includes an input pulley 38 for inputting engine power, a bevel gear 39 for changing the direction of the power, and a transmission gear that shifts in accordance with the operation of the cylinder transmission lever 37. 40, a high speed gear 41 and a low speed gear 42 with which the transmission gear 40 selectively meshes, and an output pulley 43 that outputs the shifted power to the handling cylinder 22.

  The power transmission path from the engine 35 to the reel 12 of the cutting unit 2 is provided with a reel rotation adjusting HST 44 composed of a hydrostatic continuously variable transmission mechanism (HST). Accordingly, the rotation speed of the reel 12 is adjusted. The shiftable range of the reel rotation adjustment HST 44 includes a zero point (rotation stopped state), and when the vehicle starts, the rotation speed of the reel 12 can be gradually increased from the zero point. Yes.

  As shown in FIG. 9, the driver 7 has a driver's seat 45 on which the driver is seated, a multi-lever 46 and a liquid crystal monitor 47 disposed in front of the driver's seat 45, and a main driver disposed on the left side of the driver's seat 45. A shift lever 48, an auxiliary shift lever 49, a switch panel 50, a cutting height adjustment dial 56, and the like are provided.

  The liquid crystal monitor 47 can display various types of information related to the general-purpose combine 1, and according to the operation of the operation buttons 47a to 47d provided on one side, the display contents can be switched and various settings can be changed (for example, harvested crops). Can be set). Further, as shown in FIG. 10A, the cutting height adjustment dial 56 can adjust the cutting height of the cutting unit 2, and enters automatic cutting height control for automatically controlling the cutting height of the cutting unit 2. / Also used as a cutting tool.

  Further, as shown in FIG. 10B, the switch panel 50 includes a crop changeover switch 50a for setting the type of crop to be harvested (rice, wheat, soybean, etc.), and a selection for adjusting the fin opening of the chaff sheave 31. A dial 50b, a reel rotation adjustment dial 50c for adjusting the rotation speed of the reel 12, a horizontal changeover switch 50d for switching a horizontal control mode (airframe horizontal mode, ground horizontal mode), and the like are provided.

  The general-purpose combine 1 includes a plurality of crop adjustment elements that are adjusted for each crop to be harvested in order to support a plurality of types of crops. For example, in the general-purpose combine 1 of the present embodiment, as shown in FIGS. 11 and 12, the rotation speed of the handling cylinder 22, the replacement of the receiving mesh 23 with different meshes, and the bottom plates with different holes (feeder house bottom plates) 51, exchange of the most horizontal spiral bottom plate 52, first cerealing device bottom plate 53, second cerealing device bottom plate 54, second horizontal census bottom plate 55), use / non-use of automatic cutting height control, crop changeover switch 50a And the dial value of the sorting dial 50b are included in the crop-specific adjustment elements. A plurality of parts (receiving nets, bottom plates, etc.) that need to be replaced for each crop are prepared in advance as a crop kit by a manufacturer or the like, and are provided to the user as needed.

  And when harvesting rice and wheat, the rotation speed of the handling cylinder 22 is high, the receiving net 23 is for rice and wheat, and the bottom plates (feeder house bottom plate 51, most horizontal spiral bottom plate 52, most cerealing device bottom plate) 53, No. 2 cerealing device bottom plate 54, No. 2 horizontal spiral bottom plate 55) without holes, automatic cutting height control not used, crop changeover switch 50a switching position of “rice” or “wheat”, sorting dial 50b Harvest is performed with the dial value set to “5” or “4”.

  When harvesting soybeans, the rotation speed of the barrel 22 is low, the receiving net 23 is for soybeans, bottom plates (feeder house bottom plate 51, first horizontal spiral bottom plate 52, first cerealing device bottom plate 53, second Graining machine bottom plate 54, No. 2 horizontal spiral base plate 55) with holes, automatic cutting height control is used, crop change switch 50a switch position is “soybean”, selection dial 50b dial value is “10” Do. Note that the crop-specific adjustment elements and the types of crops are not limited to those described above, and appropriate combination patterns can be set in combination for various crops and crop-specific adjustment elements. In addition, although it is possible to detect the types for all of the adjustment elements for each crop described, the types may be detected only for some of the adjustment elements for each crop due to cost constraints.

  Traditionally, when harvesting different crops, a general-purpose combine that requires manual adjustment of multiple crop-specific adjustment factors can result in harvest loss or clogging due to incorrect adjustments or forgetting adjustments. .

  Therefore, the general combine 1 according to the embodiment of the present invention determines whether or not the adjustment state detecting means for detecting the adjustment state of the crop-specific adjustment element and the detected adjustment state of the crop-specific adjustment element are appropriate. And an adjustment failure alarm means for providing an alarm when it is determined to be inappropriate. If it does in this way, generation | occurrence | production of the harvest loss and clogging by adjustment failure can be prevented.

  Moreover, the general purpose combine 1 of this embodiment is provided with a crop changeover switch 50a for setting a crop to be harvested according to a driver's operation, and the adjustment failure alarm means has an adjustment state of the detected adjustment element for each crop. Then, it is determined whether or not the adjustment state of the crop set by the crop changeover switch 50a is appropriate, and an alarm is issued when it is determined that it is not appropriate. In this way, it is possible to provide an appropriate alarm based not only on poor adjustment of the crop-specific adjustment elements, but also on multiple judgments including erroneous operation of the crop changeover switch 50a and forgetting to operate.

  In addition, this invention can be implemented also with the general purpose combiner which is not provided with the crop changeover switch 50a. For example, a combination pattern of detected adjustment states related to a plurality of crop-specific adjustment elements is compared with a combination pattern of appropriate adjustment states related to a plurality of crops stored in advance, and the detected combination pattern matches any stored combination pattern If not, an alarm is given that the current combination pattern is inappropriate. In this way, it is possible to determine the adjustment failure of the adjustment element for each crop regardless of the presence or absence of the crop changeover switch 50a, and perform an appropriate alarm. The adjustment state detection means and the adjustment failure alarm means will be described in detail in the description after FIG.

  As shown in FIG. 13, the traveling unit 8 includes a pair of left and right crawler traveling devices 57. The crawler traveling device 57 includes a ring body such as a drive sprocket 58, an idler 59, an upper wheel 60, a plurality of lower wheels 61, and a crawler 62 suspended around these wheel bodies. The airframe is caused to travel according to the drive rotation of the drive sprocket 58 and the tension of the crawler 62 is adjusted by the idler 59. Here, the drive sprocket 58 and the upper wheel 60 are supported on the body frame 63 side, and the idler 59 and the lower wheel 61 are supported on the track frame 64 side.

  Between the body frame 63 and the track frame 64, a body lifting mechanism 65 that lifts and lowers the body with respect to the ground surface of the traveling unit 8 is provided. The airframe elevating mechanism 65 according to the present embodiment swings in the front-rear direction according to the hydraulic expansion and contraction operation of the pair of front and rear connecting links 66 and 67 that connect the track frame 64 to the airframe frame 63 so as to be movable up and down. An elevating hydraulic cylinder includes a moving operating arm 69, a front connecting rod 70 that connects the operating arm 69 to the front connecting link 66, and a rear connecting rod 71 that connects the operating arm 69 to the rear connecting link 67. When 68 is hydraulically expanded and contracted, a pair of front and rear connecting links 66 and 67 are interlocked with the operating arm 69 to swing in the front-rear direction, so that the airframe is raised and lowered with respect to the ground contact surface of the traveling unit 8.

  In the general-purpose combine 1 of the present embodiment, the pair of left and right crawler travel devices 57 each include a body lifting mechanism 65, and the left and right lifting hydraulic cylinders 68 included in each body lifting mechanism 65 are expanded and contracted in the same direction to connect the body. A function of moving up and down in parallel to the ground and a function of tilting the aircraft to the left and right by expanding or contracting one of the lifting hydraulic cylinders 68 or expanding and contracting the left and right lifting hydraulic cylinders 68 in the contralateral direction are realized. .

  By the way, the general-purpose combine 1 of this embodiment has an engine room (not shown) on the right side of the machine body, where the engine 35, an engine rotation adjusting motor 72 (see FIG. 14), and a radiator (not shown). A cooling fan (not shown) and the like are arranged. The outer portion of the engine room is covered with an engine cover (not shown) having a large number of ventilation holes, and the cooling fan takes in outside air through the ventilation holes of the engine cover. In this engine cover, as the outside air is taken in by the cooling fan, debris accumulates on the outer surface side, and the amount of outside air taken in decreases, and overheating may occur. In particular, when harvesting wheat that is harvested in high-temperature seasons, or when harvesting soybeans where the engine cover may be clogged extensively due to sticking of large leaves, compared to when harvesting rice. Overheating tends to occur. Accordingly, the general purpose combine 1 of this embodiment includes a cooling fan drive HST 73 (see FIG. 14) that can rotate the cooling fan forward and backward, and periodically deposits on the engine cover by driving the cooling fan in reverse. The function to blow off is realized.

  As shown in FIG. 14, the general-purpose combine 1 is provided with a control unit 74 configured by a microcomputer or the like. On the input side of the control unit 74, in addition to the cutting height sensor 15 (adjustment state detection means), the crop changeover switch 50a, the selection dial 50b, the reel rotation adjustment dial 50c, the horizontal changeover switch 50d, and the cutting height adjustment dial 56, A handling cylinder rotation switching detection switch 75 (adjustment state detecting means) for detecting the rotation switching state of the handling cylinder 22, a plurality of crop kit detection switches 76 for detecting the type of the receiving net 23 and the bottom plates 51 to 55, and left and right Cylinder potentiometers 76 and 77 for detecting the expansion / contraction state of the elevating hydraulic cylinder 68, a reel rotation sensor 78 for detecting the rotation speed of the reel 12, a vehicle speed sensor 79 for detecting the vehicle speed, and a layer of the sort in the swing sorter 25. A layer thickness sensor 80 for detecting the thickness and an engine rotation sensor 81 (engine load detecting means) for detecting the engine speed are connected. In addition to the fin drive motor 34, the reel rotation adjustment HST 44, the liquid crystal monitor 47, the engine rotation adjustment motor 72, and the cooling fan drive HST 73, an alarm sound is output to the output side of the control unit 74. Alarm buzzer 82, mowing lift valve 84 for moving the hoisting / lowering cylinder 83 for raising / lowering the mowing unit 2, hydraulic hoisting / lowering valve 84, left hoisting / lowering valve 85 for hydraulic hoisting / lowering of the left hoisting / lowering hydraulic cylinder 68, and hydraulic hoisting / lowering hydraulic cylinder 68. A right raising / lowering valve 86 is connected. The crop kit detection switch 76 of the present embodiment is a contact type switch that detects the type of the receiving net 23 and the bottom plates 51 to 55 based on the presence or absence of the notch K as shown in FIG. Alternatively, a magnetic sensor may be used. Further, an IC chip (for example, RFID) is provided on the receiving net 23 and the bottom plates 51 to 55, and the type of the receiving net 23 and the bottom plates 51 to 55 is determined based on information read from the IC chip. Also good.

  The control unit 74 of the present embodiment includes software (program and storage data) that realizes various controls in cooperation with hardware, and the processing procedure will be described with reference to FIG.

  As shown in FIG. 15, in the main routine of the control unit 74, it is determined whether or not the adjustment state of the adjustment element for each crop is appropriate, and crop determination control (S 1) that performs notification when it is determined that the adjustment state is not appropriate. Automatic control switching (S2) for switching automatic control (control mode) according to the harvested crop, engine load alarm control (S3) for notifying overload when the engine load is equal to or higher than a judgment value, and a cooling fan Fan forward / reverse rotation control (S4) for periodically rotating in reverse direction, take-up reel control (S5) for controlling the rotation of the reel 12, and horizontal control (S6) for performing horizontal body control and ground horizontal control are executed. .

  FIG. 16 shows the crop discrimination control 1 suitable for a model not equipped with the liquid crystal monitor 47, and FIG. 17 shows the crop discrimination control 2 suitable for a model equipped with the liquid crystal monitor 47.

  As shown in FIG. 16, in the crop discrimination control 1, first, various adjustment state detection means (a barrel rotation switching detection switch 75, a crop kit detection switch 76, a cutting height sensor 15, a selection dial 50 b, a crop switching switch 50 a, etc.) After the detection signal is read (S11), the combination pattern of the detected adjustment state relating to the plurality of crop-specific adjustment elements is compared with the combination pattern of the appropriate adjustment state relating to the plurality of crops stored in advance (S12). Next, the presence / absence of a matching combination pattern is determined (S13). If this determination result is present, it is determined that the crop is a matching pattern (S14), but if there is no matching combination pattern, It is determined that the combination pattern is inappropriate, and an alarm is given by the alarm buzzer 82 (S15: adjustment failure notification means). According to such crop discrimination control 1, it is possible to perform harvesting work in an appropriate adjustment state according to the type of crop, and it is possible to cope with a case where the crop changeover switch 50a is set incorrectly. .

  As shown in FIG. 17, in the crop discrimination control 2, first, various adjustment state detection means (handling rotation switching detection switch 75, crop kit detection switch 76, cutting height sensor 15, sorting dial 50b, crop switching switch 50a, etc.) After the detection signal is read (S21), the combination pattern of the detected adjustment state relating to the plurality of crop-specific adjustment elements is compared with the combination pattern of the appropriate adjustment state relating to the plurality of crops stored in advance (S22). Next, it is determined whether or not there is a matching combination pattern (S23). If this determination result is present, it is determined that the crop has a matching pattern (S24), and the crop is displayed on the liquid crystal monitor 47 (S24). S25) If there is no matching combination pattern, it is determined whether or not there is a crop selection operation on the liquid crystal monitor 47 (S26). Since this judgment result at the first time is not present, a crop selection screen is displayed on the liquid crystal monitor 47 (S27), and an alarm buzzer 82 warns that the current combination pattern is inappropriate (S28: adjustment failure notification means) ). If the crop selection operation of the liquid crystal monitor 47 is determined in a state where there is no matching combination pattern, the combination pattern of the adjustment state suitable for the selected crop is read (S29), and the combination pattern of the adjustment state that has been detected is read. (S30), and the comparison result is displayed on the liquid crystal monitor 47 (S31). According to such a comparison result display, it is easy to identify an inappropriate adjustment element.

  18 shows an automatic control switch 1 suitable for a model that does not include the liquid crystal monitor 47 and the crop changeover switch 50a. FIG. 19 shows an automatic control suitable for a model that does not have the liquid crystal monitor 47 but has the crop changeover switch 50a. FIG. 20 shows an automatic control switch 3 suitable for a model having the liquid crystal monitor 47 and the crop switch 50a.

  As shown in FIG. 18, in automatic control switching 1, the presence / absence of the above-described matching pattern is determined (S41). If this determination result is present, it is determined that the crop has a matching pattern (S42). The discriminating crop is set in the mode (S43), and automatic control suitable for the discriminating crop is executed. On the other hand, if it is determined that there is no matching pattern, the process returns to the upper routine as it is.

  As shown in FIG. 19, also in the automatic control switching 2, the presence / absence of the above-mentioned matching pattern is determined (S51), and if this determination result is present, it is determined that the crop has the matching pattern (S52). The discriminating crop is set in the control mode (S53), and automatic control suitable for the discriminating crop is executed. On the other hand, if it is determined that there is no matching pattern, the detection signal of the crop changeover switch 50a is read (S54), and the crop (switchable crop) specified based on the detection signal is provisionally set to the control mode ( S55). However, since the patterns do not match, the alarm by the above-described crop discrimination control is continued.

  As shown in FIG. 20, also in the automatic control switching 3, the presence / absence of the above-mentioned matching pattern is determined (S61), and if this determination result is present, it is determined that the crop has the matching pattern (S62). The discriminating crop is set in the control mode (S63), and automatic control suitable for the discriminating crop is executed. On the other hand, if it is determined that there is no matching pattern, it is determined whether or not there is a crop selection operation on the liquid crystal monitor 47 (S64). If it is determined that there is no crop selection operation, the detection signal of the crop changeover switch 50a is read (S65), and the crop (switchable crop) specified based on the detection signal is provisionally set to the control mode. (S66). However, since the patterns do not match, the alarm by the above-described crop discrimination control is continued. If it is determined that there is a crop selection operation, the designation signal on the crop selection screen is read (S67), and the crop (designated crop) specified based on the detection signal is provisionally set to the control mode. (S68). However, since the patterns do not match, the alarm by the above-described crop discrimination control is continued.

  As shown in FIG. 21, in the engine load alarm control, the control mode is determined (S71). If it is determined that the control mode is “rice / wheat”, the load alarm level (determination value) is increased. In addition to setting (S72: judgment value changing means), the engine output is set high (S73). On the other hand, when it is determined that the control mode is "soybean", the load alarm level (judgment value) is set low. (S74: judgment value changing means), the engine output is set low (S75). After setting the load alarm level and the engine output, an alarm is issued based on engine load detection exceeding the set load alarm level (for example, whether or not the amount of decrease in engine speed is greater than or equal to a determination value). A load warning (S76: overload notification means) and engine output adjustment (S77) for adjusting the engine output to the set output are executed.

  According to such engine load warning control, since the overload is notified when the engine load is equal to or higher than the determination value, the determination value is changed according to the type of the crop. Overload notification can be performed, and as a result, crop clogging can be determined at the initial stage based on overload notification according to the type of crop, and serious troubles can be avoided. In addition, since the judgment value when harvesting soybeans was set lower than the judgment value when harvesting rice and wheat, it was accompanied by crop clogging in harvesting soybeans that had a smaller threshing load than rice and wheat. An increase in engine load can be determined at an early stage, and this can be notified.

  Further, if the engine output is the same, the driving torque of the handling cylinder 22 increases when the handling cylinder rotation is switched to low speed during soybean cutting, and the handling cylinder 22 rotates even if the inside of the handling chamber 18 is somewhat clogged. As a result, when the engine load alarm sounds, the clogging situation in the handling chamber 18 deteriorates, and there is a possibility that the trouble of cleaning increases, or the handling cylinder shaft may be damaged before the alarm sounds. In the embodiment of the present invention, however, The above problem can be solved by lowering the engine load alarm level. Further, by reducing the engine output, it is possible to suppress an increase in driving torque and to prevent the clogging situation from deteriorating.

  As shown in FIG. 22, in the fan forward / reverse control, the control mode is determined (S81). If it is determined that the control mode is “wheat / soybean”, as shown in FIG. On the other hand, when the control mode is determined to be “rice”, a short time T1 is set to the reverse rotation operation cycle of the cooling fan, as shown in FIG. (S83). With such fan forward / reverse control, when harvesting wheat that is harvested in high-temperature seasons, or when harvesting soybeans where the engine cover may be blocked extensively due to sticking of large leaves, Since the reverse rotation cycle of the cooling fan is shortened, the occurrence of overheating can be suppressed.

  As shown in FIG. 24, in the take-up reel control, the control mode is determined (S91). If it is determined that the control mode is “rice / wheat”, the rice / wheat mode shown in FIG. While controlling the rotation of the reel 12 (S92: reel rotation control means), if it is determined that the control mode is “soybean”, the rotation of the reel 12 is controlled in the soybean mode shown in FIG. 25 (S93: reel rotation). Control means). That is, in the reeling reel control, as shown in FIG. 25, in principle, the rotation speed of the reel 12 is controlled in conjunction with the vehicle speed, and the reel rotation is stopped when the machine is stopped. Even when starting, the reel rotation speed is controlled in conjunction with the vehicle speed.When harvested crops are rice and wheat, the reel rotation speed is increased to the predetermined rotation speed according to the start of the aircraft, and the control shifts to the vehicle speed synchronization control at a predetermined vehicle speed or higher. Let This kind of scraping reel control not only can suppress the threshing of potatoes when the aircraft starts (starting cutting), but also when the rice and wheat are harvested, there is a lack of scraping when the aircraft starts. It can be eliminated and the stability at the beginning of cutting can be improved. In the present embodiment, not only when the aircraft starts, but also in the full vehicle speed range, the reel rotation speed of soybeans and other soy beans is lower than the reel rotation speed of rice and wheat so as to further suppress the grain shattering. ing.

  As shown in FIG. 26, in the horizontal control, the control mode is determined (S101). When it is determined that the control mode is “rice / wheat”, the control parameters for rice / wheat shown in FIG. Is selected (S102: control parameter changing means), on the other hand, if it is determined that the control mode is “soybean”, the control parameters for soybean shown in FIG. 27 are selected (S103: control parameter changing means). After selecting the control parameters, the aircraft horizontal control (S104: horizontal control means) that maintains the horizontal tilt angle of the aircraft at a predetermined angle based on the absolute horizontal reference, or the horizontal tilt angle of the aircraft is maintained at a predetermined angle with respect to the ground. The ground level control (S105) is selectively executed.

  As shown in FIG. 27, in horizontal control at the time of soybean harvesting, the control parameters are changed so that the responsiveness is higher than when harvesting rice and wheat. For example, the delay timer speed is shortened to increase the horizontal control reaction speed, the elevating hydraulic cylinder 68 is extended to increase the horizontal control operation speed, or the cylinder operation amount with respect to the sensor output is increased to increase the horizontal control speed. By increasing the sensitivity of control, the responsiveness of horizontal control is increased. According to such horizontal control, even when the height of cutting is set low so that there is no uncut portion when soybeans are harvested, the left and right inclinations of the aircraft and the cutting unit 2 are quickly corrected, and the cutting due to the left and right inclinations is performed. The contact of the part 2 with the ground can be avoided, and as a result, generation of dirt and uncut residue can be prevented by cutting mud.

  A general-purpose combiner 1 capable of harvesting a plurality of types of crops, configured as described above, wherein the horizontal control means for maintaining the horizontal inclination angle of the aircraft at a predetermined angle, and the control parameters of the horizontal control means as the type of crop Control parameter changing means that changes according to the control parameter changing means, the control parameter changing means of the horizontal control means so that the responsiveness of the horizontal control means at the time of soybean harvesting is higher than the responsiveness at the time of harvesting rice and wheat Since the control parameter is changed, even when the cutting height is set low so that there is no uncut portion when harvesting soybeans, the left and right inclinations of the airframe and the cutting part 2 are quickly corrected, and the cutting part 2 accompanying the left and right inclinations. The contact with the ground can be avoided, and as a result, the generation of dirt and the uncut residue can be prevented by cutting mud.

  Further, the control parameter changing means can improve the responsiveness of the horizontal control means by changing the reaction speed of the horizontal control means.

  Further, the control parameter changing means can improve the responsiveness of the horizontal control means by changing the operating speed of the horizontal control means.

  Further, the control parameter changing means can improve the responsiveness of the horizontal control means by changing the sensitivity of the horizontal control means.

  The general combine 1 according to the present embodiment includes a plurality of crop-specific adjustment elements that are adjusted for each crop to be harvested, an adjustment-state detecting unit that detects an adjustment state of the crop-specific adjustment elements, and adjustment of the detected crop-specific adjustment elements. It is provided with an adjustment failure notification means for determining whether or not the state is appropriate and notifying it when it is determined not to be appropriate, so that while performing the harvesting operation in an appropriate adjustment state according to the type of crop, Horizontal control can be executed with responsiveness according to the type, and as a result, it is possible to perform harvesting work with high quality and low grain loss.

DESCRIPTION OF SYMBOLS 1 General purpose combine 2 Mowing part 3 Threshing part 4 Grain tank 7 Driving | running | working part 8 Traveling part 12 Reel 35 Engine 50a Crop change switch 51 Feeder house bottom plate 52 The most horizontal spiral bottom plate 53 The most cerealing device bottom plate 54 The second cerealing device Bottom plate 55 Second horizontal spiral bottom plate 57 Crawler traveling device 68 Elevating hydraulic cylinder 74 Control unit 76 Crop kit detection switch 78 Reel rotation sensor 79 Vehicle speed sensor 81 Engine rotation sensor 82 Alarm buzzer

Claims (4)

A general-purpose combine that can harvest rice, wheat and soybeans ,
Horizontal control means for maintaining the right / left tilt angle of the aircraft at a predetermined angle;
Automatic cutting height control means for automatically controlling the cutting height of the cutting part;
Control parameter changing means for changing the control parameter of the horizontal control means according to the type of crop,
The control parameter changing means uses the automatic cutting height control means when harvesting soybeans , changes the control parameters of the automatic cutting height control means so that it is not used when harvesting rice and wheat, and the horizontal control means when harvesting soybeans. A general-purpose combine characterized by changing the control parameters of the horizontal control means so that the responsiveness is higher than the responsiveness when harvesting rice and wheat.   The general-purpose combine according to claim 1, wherein the control parameter changing means changes a reaction speed of the horizontal control means.   The general-purpose combine according to claim 1, wherein the control parameter changing means changes the operating speed of the horizontal control means. The general-purpose combine according to claim 1, wherein the control parameter changing means changes the sensitivity of the horizontal control means.

Images