JP7152336B2 - combine - Google Patents

Description

The present invention relates to a combine having a grain tank for storing threshed grain.

Conventionally, as disclosed in Patent Document 1, for example, in order to detect the storage height of grains in the grain tank in stages, a plurality of storage amount detection sensors are arranged on the inner surface of the grain tank at predetermined intervals in the vertical direction. There is known a combine harvester in which a display monitor having a display lamp that lights up in response to detection by a storage amount detection sensor is arranged in an operating section in the operator's cab. In the combine harvester configured in this way, the display lamp of the display monitor lights up according to the grain storage height detected by the storage amount detection sensor, so that the operator of the combine can see that the grain in the grain tank is full. It is possible to recognize how much is stored for

Further, for example, as disclosed in Patent Document 2, a weight detection sensor such as a load cell is provided at the bottom of the grain tank, and the grain weight in the grain tank is calculated based on the measurement value of this weight detection sensor, A combine harvester is known in which the grain weight is displayed on a display monitor arranged in an operation unit.

Japanese Patent No. 4067889 JP 2017-18014 A

However, the combine described in Patent Document 1 detects the storage height of grains in stages by the storage amount detection sensor arranged in a vertical direction, so the operator of the combine can detect the full amount of the grain tank. Although it is possible to recognize the storage ratio of grains to grains, it is not possible to recognize how much the storage amount in the grain tank is relative to the loading capacity of the truck that transports and stores the grains. In addition, the combine disclosed in Patent Document 2 is designed to display the weight (unit: kilogram) of the amount of grain stored on the display monitor, and the loading amount (unit: : liters), it is difficult for an inexperienced operator to intuitively understand the difference between the two.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a combine harvester that solves the above-described problems by indicating the storage amount of grains in the grain tank in terms of volume.

The present invention comprises a harvesting unit (4) for harvesting grain stalks in a field,
a threshing unit (6) for threshing the culms harvested by the harvesting unit (4);
A grain tank (8) for storing grains threshed in the threshing unit (6);
A pile height detection sensor (39) for detecting the pile height of grains stored in the grain tank (8);
machine body position measuring means (52) for measuring the position of the traveling machine body in the field;
Control means (51) for calculating the storage volume of grains stored in the grain tank (8) based on the measured value of the pile height detection sensor (39);
display means (65) for displaying the storage volume;
A communication device (71) that outputs data to an external terminal (72) ,
The control means (51) calculates the area of the harvested land, which has already been cut, and the uncut land, which has not yet been cut, at the stage when the outer circumference cutting work of the field is completed, and detects the accumulation height. It is possible to calculate an overall predicted yield of the entire field based on the yield of the already harvested land measured by the sensor (39), and to display the overall predicted yield on the display means (65) in a volume display. capable of outputting data to the external terminal (72) via the communication device (71);
It is characterized by

For example, referring to FIG. 10, there is provided a notification means (66) for notifying that the storage volume calculated by the control means (51) reaches a preset volume.

For example, referring to FIG. 7, a moisture sensor (50) for detecting the moisture content of the grains stored in the grain tank (8),
The control means (51) calculates the storage weight based on the calculated storage volume of the grain and the moisture content of the grain detected by the moisture sensor (50), and displays the storage weight on the display device (65). to display.

For example, referring to FIG. 5, an agitating device (46) is provided for smoothing the piled state of the grains stored in the grain tank (8).

The reference numerals in parentheses above are for comparison with the drawings, but do not limit the configuration of the present invention.

According to the present invention according to claim 1, a pile height detection sensor for detecting the pile height of the grains stored in the grain tank is provided, and the control means controls the inside of the grain tank based on the measured value of the pile height detection sensor. , and the calculated storage volume is displayed on the display means, the operator of the combine can exchange the amount of grain stored in the grain tank and the loading amount of the truck on the same basis. error can be reduced.

According to the present invention according to claim 2, since the notification means is provided for notifying that the storage volume of the grain tank calculated by the control means reaches the preset volume, for example, the grains can be loaded into the transport vehicle. When the amount of loading is limited, an error can be reduced compared to the case of intuitively harvesting by notifying when the amount of storage corresponding to the amount of loading is reached.

According to the third aspect of the present invention, the storage weight is calculated based on the calculated storage volume of the grain and the moisture content of the grain detected by the moisture sensor, and the storage weight is displayed on the display device. Not only can the amount of grain stored in the tank and the load of the truck be exchanged on the same basis, but the weight of the grain in the grain tank can be displayed for added convenience.

According to the fourth aspect of the present invention, since the grain tank is provided with a stirrer that smoothes the piled state of the grains stored in the grain tank, the control unit can calculate the storage volume with high accuracy.

The side view which shows the general-purpose combine which concerns on this Embodiment. The top view which shows a grain tank and its peripheral part. AA sectional view of FIG. 2 showing a grain tank and its surroundings. FIG. 4 is a cross-sectional view taken along line BB in FIG. 3, showing the grain tank and its surroundings; CC sectional view of FIG. 4 showing the grain tank and its surroundings. The block diagram of the control part with which a combine is equipped. 4 is a flowchart showing the control flow of the entire prediction process by the control unit; 4 is a flowchart showing a control flow of fuel warning processing; 4 is a flowchart showing a control flow of fueling alarm processing; The flowchart which shows the control flow of a grain alarm process. 4 is a flowchart showing a control flow of data output processing; Explanatory drawing of a yield map. Explanatory drawing of the measurement screen displayed on a display screen. Explanatory drawing of the work screen displayed on a display screen.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. A combine harvester 1 according to the present embodiment is a general-purpose combine harvester, and as shown in FIG. A reaping unit 4 for reaping grain culms in a field is provided in front of the traveling machine body 3 so as to be able to move up and down. An operation unit 5 is provided. On the other side of the traveling machine body 3, a threshing unit 6 for threshing the culms harvested and transported by the reaping unit 4 is provided, and below the threshing unit 6, sorted threshed material is sorted. A sorting unit 7 is provided for the selection. A grain tank 8 for storing the grains sorted by the sorting unit 7 is arranged behind the operation unit 5, and the grains stored in the grain tank 8 are stored behind the grain tank 8. A discharge auger 9 is provided for discharging out of the machine. In the present embodiment, the front direction X in which the operator seated on the operation unit 5 of the combine 1 placed horizontally faces is defined as the front, and the front, rear, left, and right directions are defined based on this direction.

An engine (not shown) is provided in the right front portion of the traveling body 3, and the power generated by the engine is branched into power for the traveling system and power for the working system. The power of the traveling system is transmitted to the left and right crawler-type traveling devices 2, and the power of the working system is transmitted to the reaping unit 4 via a reaping clutch (not shown), and a threshing clutch (not shown). It is transmitted to the threshing part 6, the grain tank 8, etc. through. The reaping unit 4 has a reel 10 extending in the horizontal direction, a movable mechanism (not shown) supporting the reel 10 so as to be movable in the vertical direction and the front-rear direction, a reciprocating cutting blade 11 and a feeder 13 having a feeder conveyor 12 . . Grain stalks in the field that are raked by the rotating reel 10 are cut by the cutting blade 11 and conveyed to the threshing section 6 by the feeder conveyor 12 .

The threshing part 6 includes a threshing chamber 14 into which the culms harvested by the reaper 4 are thrown, and a threshing cylinder supported rotatably in the threshing chamber 14 and having a spiral guide plate 15a attached to its outer peripheral surface. The guide plate 15a is provided with a plurality of projecting teeth 15b for hooking grain culms and rotating them together with the threshing drum 15. As shown in FIG. The culms thrown into the handling chamber 14 are rotated together with the handling cylinder 15 by the handling teeth 15b, and are threshed by being rubbed against a receiving net (not shown) while being transported to the rear side of the machine body. It falls into the sorting section 7 through the net.

The sorting unit 7 includes a swing sorting body 16 disposed below the drum 15, a winnow fan 17 for blowing sorting air from the lower front side of the swing sorting body 16 to the upper rear side, and A blower fan 18 is provided. The swing sorting body 16 has a two-stage structure with upper and lower chaff sieves. It is sorted by wind into a thing and a second thing. After dropping into the first helix 19, the first one is transported into the grain tank 8 via a lifting transport tube (not shown) and stored therein. After falling onto the second helix 20, the second product is returned to the oscillating sorter 16 via a return conveying cylinder (not shown).

2 is a plan view showing the grain tank 8 and its surroundings, FIG. 3 is a cross-sectional view along AA in FIG. 2, FIG. 4 is a cross-sectional view along B-B in FIG. 3, and FIG. 5 is a cross-sectional view along C-C in FIG. is. As shown in these figures, a discharge spiral 21 is rotatably provided in the deepest part inside the grain tank 8 so as to extend along the front-rear direction. By the rotation of the discharge spiral 21, the grains stored in the deepest part of the grain tank 8 are transported toward the rear portion of the grain tank 8, and are carried out from the lower rear portion of the grain tank 8 to the outside of the grain tank 8. is discharged overboard by a discharge auger 9 having a longitudinal conveying spiral (not shown) for lifting the

A grain-raising conveyor 22 is arranged between the threshing section 6 and the grain tank 8 , and the grain-raising conveyor 22 has a power transmission case 23 and a horizontal spiral tube 24 . Inside the power transmission case 23, there are a shaft-rotating pulley (not shown) and a belt (not shown) which is operated by the rotation of the pulley and extends from the lower part of the threshing part 6 to the upper part of the grain tank 8. etc. are provided.

A cylindrical horizontal spiral tube 24 is provided so as to protrude from the upper end of the power transmission case 23 toward the inside of the grain tank 8 through the side wall near the upper portion of the grain tank 8 . The horizontal spiral tube 24 has a horizontal spiral 26 provided therein and integrally spirally formed around a horizontal spiral shaft 25, and a discharge port that opens rearward on the cylindrical surface at the terminal end of the horizontal spiral tube 24. 27, a scraping plate 28 provided at the tip of the horizontal spiral 26, arranged so as to be close to the inner surface of the horizontal spiral cylinder 24 and fixed to the horizontal spiral 26; and a rotation sensor 29 that converts the amount of rotation of the spiral 26 into an electrical signal.

The grains threshed in the threshing unit 6 are lifted by a belt from the bottom of the threshing unit 6 to the top of the grain tank 8 inside the power transmission case 23, and the grains move inside the horizontal spiral cylinder 24 by the rotation of the horizontal spiral 26. The grains are conveyed to the right into the tank 8 , and are scattered into the grain tank 8 from the outlet 27 by the scraping plate 28 that rotates integrally with the horizontal spiral 26 . The discharge port 27 is formed in a predetermined range from the lower part to the upper part of the horizontal helical cylinder 24, and when the scraping plate 28 rotates clockwise in the right side view, the discharge port 27 extends from the lower part to the rear side. The inside of the grain tank 8 is configured so that the grains are spread widely.

The grain tank 8 has a front plate 30, a front plate 31, a right plate 32, a left plate 33, and a top plate 34. The front surface of the grain tank 8 has a substantially constant cross-sectional area in a predetermined range in the vertical direction. , a rear surface, a left surface, a right surface, and an upper surface, and a lower surface is closed with a first bottom plate 35 and a second bottom plate 36 to form a box shape. The front plate 30 and the top plate 34 are formed with a maintenance hole 37 that can be opened and closed for checking the inside of the grain tank 8 . Both the first bottom plate 35 and the second bottom plate 36 are formed of substantially planar sheet metal extending in the front-rear direction, and are at a predetermined angle with each other so that the lower surface of the grain tank 8 faces the discharge spiral 21 . It is arranged so as to incline downward. That is, the front plate 30, the front plate 31, the first bottom plate 35, and the second bottom plate 36 are formed so that the cross-sectional area gradually decreases downward, and the rotation of the discharge spiral 21 causes the bottom plate to reach the deepest part of the grain tank 8. When the stored grains are conveyed rearward, the upper grains are sequentially gathered in the discharge spiral 21 along the slopes of the first bottom plate 35 and the second bottom plate 36 . A plurality of reinforcing plates 38 made of sheet metal or the like are provided inside the grain tank 8 in order to prevent the grain tank 8 from being deformed by the weight of the stored grains.

The grain tank 8 is provided with a grain detection unit (reserved amount detection means) 39 capable of detecting the piled height (reserved amount) of the grains stored inside the grain tank 8 . The grain detection unit 39 includes a unit attachment/detachment plate 40 that closes a unit attachment/detachment opening 34a that opens in the top plate 34 of the grain tank 8, and connects the lower surface of the unit attachment/detachment plate 40 and the first bottom plate 35 of the grain tank 8. A detection base 41, a plurality of microswitches 42 arranged from the vicinity of the lower end of the detection base 41 to the vicinity of the upper end of the detection base 41, a relay portion 43 placed on the upper surface of the unit attaching/detaching plate 40, and the detection base 41. and a detection cover 45 that covers the front surface from the lower end to the upper end.

The microswitch 42 has a disk-shaped diaphragm 42a made of elastic material such as rubber, and a contact switch (not shown) arranged in front of the diaphragm 42a for detecting deformation of the diaphragm 42a. However, in the grain undetected state, the center of the front surface of the diaphragm 42a is arranged close to the contact switch. The microswitches 42 are arranged to form a first vertically aligned row and a second vertically aligned row, the second row being aligned with the first row. are provided parallel and adjacent to each other. In addition, the microswitches 42 in the second row are arranged in a zigzag pattern on the detection base 41 such that the height of the microswitches 42 in the second row is the height between two vertically adjacent microswitches 42 in the first row. are placed in In addition, one diaphragm 42a in the first row partially overlaps the other diaphragm 42a in the vertically adjacent second row in the horizontal direction, and in the portion where the cross-sectional area of the grain tank 8 is the largest, , the two diaphragms 42a are arranged so that they partially overlap each other in the vertical direction as well.

The volume inside the grain tank 8 between the horizontal plane passing through the lower end of the grain tank 8 and the horizontal plane passing through the center of the diaphragm 42a of the microswitch 42 arranged at the bottom is vertically increased. It is arranged so as to be substantially the same as the volume between the horizontal planes passing through the centers of any adjacent diaphragms 42a. That is, in the range where the cross-sectional area of the grain tank 8 is constant, the vertical spacing between the vertically adjacent diaphragms 42a is substantially constant, and in the range where the cross-sectional area gradually decreases downward , and the vertically adjacent diaphragms 42a are arranged such that the vertical interval between them gradually increases downward.

The microswitch 42 is electrically connected to a relay section 43 via a wire harness (not shown), and the relay section 43 is connected to a control section which will be described later. When the rear surface of the diaphragm 42a is pushed forward by the grains stored in the grain tank 8, the contact switch is pushed by the displacement of the diaphragm 42a and becomes energized, and the operation signal is relayed via the wire harness. It is output to the unit 43 . Here, since a plurality of microswitches 42 are arranged vertically on the detection base 41 inside the grain tank 8, the contact switch of any one of the microswitches 42 arranged at a desired height is energized. The storage amount of grains can be detected with high accuracy based on whether or not there are grains. In addition, the microswitches 42 are arranged so that the vertical interval increases as the cross-sectional area of the grain tank 8 gradually decreases in the range where the cross-sectional area gradually decreases downward. Even if the area is uneven in the vertical direction, the resolution for detecting the grain storage amount can be made substantially constant over the top and bottom of the grain tank 8, and the microswitches 42 are arranged without waste according to the desired resolution. can do.

The grain tank 8 is provided with an agitating device 46 for smoothing the sedimentation of the grains stored inside the grain tank 8 . The stirring device 46 has a rotating shaft 47 arranged vertically in the grain tank 8 , a plurality of stirring rods 48 provided on the rotating shaft 47 , and a motor 49 provided on the top plate 34 . , and the rotating shaft 47 rotates with the motor 49 as a driving source. A plurality of stirring rods 48 are provided at predetermined intervals along the axial direction of the rotating shaft 47 , and the respective stirring rods 48 are arranged at intervals of 90 degrees around the rotating shaft 47 . A moisture sensor 50 for detecting the moisture content of the grain is provided at the inner bottom of the grain tank 8, and the moisture sensor 50 is arranged on the second bottom plate 36 located near the discharge spiral 21. there is

The combine 1 according to the present embodiment is equipped with a body position detection sensor (GNSS: body position measuring means) that receives radio waves (data) from GPS satellites, and measures the position of the traveling body 3 by GPS. It is possible. Further, on the traveling machine 3 side, based on the position of the traveling machine 3 measured by the GPS measurement system and the storage amount of the grain tank 8 measured by the microswitch 42, etc. A control unit 51 for calculating is provided. The configuration and processing contents of the control unit 51 will be described in detail below with reference to FIGS. 6 to 14. FIG.

FIG. 6 is a block diagram of the controller 51. The controller 51 is composed of a microcomputer including a CPU, ROM, RAM, and the like. As shown in FIG. 6, on the input side of the control unit 51, the machine body position detection sensor (GNSS) 52, the vehicle speed sensor 53 for detecting the vehicle speed of the traveling machine body 3, and the cutting clutch for detecting the on/off state of the cutting clutch. A sensor 54, a threshing clutch sensor 55 for detecting on/off of the threshing clutch, a grain culm sensor 56 and a sorting layer thickness sensor 57 provided in the sorting unit 7, and a discharge auger 9 arranged in the operation operation unit 5. A grain discharge switch 58 for turning on and off the operation, a measurement start switch 59 and a measurement end switch 60 arranged in the operation operation unit 5 for instructing the start and end of measurement, and a fuel for detecting the remaining amount of fuel in the fuel tank. A detection sensor 61, a storage height detection sensor (microswitch 42) and a moisture sensor 50 provided in the grain tank 8, and a crop to be sorted from rice, wheat, soybeans, etc. arranged in the operation operation unit 5. A crop setting dial 62 for setting, a storage target adjustment switch 63 for setting the increase or decrease of the storage target value, and a storage target alarm switch 64 for turning on/off the alarm operation are connected.

The output side of the control unit 51 is connected to a display device 65 arranged in the driving operation unit 5 for displaying the output from the control unit 51, and a notification device 66 including an alarm buzzer, an alarm lamp, and the like. . The display device 65 includes a liquid crystal panel 67 having a display screen and a touch panel 68 attached to the display screen of the liquid crystal panel 67. A touch input signal from the touch panel 68 can be input to the control unit 51. there is The control unit 51 also has a storage device 69 for storing various data, a timer 70, and a communication device 71. The communication device 71 allows the base station and other workers/assistants to It is capable of communicating with an external terminal 72 such as a personal computer.

FIG. 7 is a flowchart showing a control flow of prediction processing by the control unit 51. As shown in FIG. As shown in FIG. 7, after reading data in step S1, the control unit 51 checks whether or not the measurement flag is "0" in step S2. In S3, it is checked whether or not there is a measurement start command. A measurement start command is issued by turning on the measurement start switch 59 , but it is also possible by touch input on the touch panel 68 . If there is a measurement start command in step S3, the process proceeds to step S4, switches the measurement flag from "0" to "1", and then returns to the start. Accordingly, when there is a measurement start command, the process proceeds from step S1 to step S5 via step S2, and in step S5, it is checked whether or not the measurement flag is "1".

If the measurement flag is "1" in step S5, the process proceeds to step S6 to check whether or not the cutting operation has been completed. This reaping work is to reap the outer circumference of the field with the combine 1, and it is judged that the reaping is completed after making one round of the field. Then, when it is determined in step S6 that the repeated cutting has been completed, the process proceeds to step S7 and the agricultural field division estimation process is executed. In this farm field section estimation process, the machine body position detection sensor 52 (GPS measurement system) measures the travel locus when the outer circumference of the farm field is reaped, and the shape, dimensions, area, etc. of the farm field are calculated based on the travel locus. , to mesh the field.

When the farm field division estimation process of step S7 ends, the process proceeds to step S8, switches the measurement flag from "1" to "2", and then returns to step S1. As a result, when the mowing operation that makes one round of the outer circumference of the field is completed, the process proceeds from step S2 to step S5 via step S9, and it is checked in step S9 whether or not there is a measurement end command. If it is determined in step S9 that there is no measurement end command (NO), the process proceeds to step S10 and mesh processing is executed. In this mesh processing, based on the running trajectory when the field is re-harvested, the entire field is divided into already-harvested land (the part that has been harvested) and uncut land (the part that has not been harvested). A yield map as shown in FIG. 12 is created by dividing the fields, and after displaying this yield map on the display screen of the liquid crystal panel 67, the progress is calculated based on the area of already harvested land with respect to the area of the entire field. As shown in FIG. 13, the area of the entire field, the area of the already-cut land, the area of the un-cut land, and the progress (%) are displayed as a measurement screen on the display screen of the liquid crystal panel 67 in step S19. be.

When the mesh processing in step S10 ends, the process proceeds to step S11 and the yield prediction processing is executed. In this yield prediction process, based on the actual grain yield of the harvested land detected by the microswitch 42 of the grain detection unit 39 (reserved amount detection means) provided in the grain tank 8, After calculating the harvest amount per unit area (mesh), the predicted yield of the uncut land is calculated based on the area ratio of the uncut land and the uncut land. Then, the total predicted yield of the entire farm field is calculated by adding the actual yield of the already-cut land and the predicted yield of the uncut land. As shown in FIG. 13, the overall predicted yield of the entire farm field, the actual yield of already-cut land, and the expected yield of uncut land are displayed as a measurement screen on the display screen of the liquid crystal panel 67 in step S19. be.

When the yield prediction process of step S11 ends, the process proceeds to step S12 and the fuel prediction process is executed. In this fuel prediction process, after calculating the fuel consumption per unit area (mesh) of the already-cut land based on the actual fuel consumption of the already-cut land in the cutting work from the detection value of the fuel detection sensor 61, A predicted fuel consumption of the uncut land is calculated based on the area ratio of the cut land and the uncut land. Then, the predicted fuel consumption of the entire field is calculated by adding the actual fuel consumption of the already-cut land and the predicted fuel consumption of the uncut land. As shown in FIG. 13, the predicted fuel consumption of the entire field, the actual fuel consumption of the already-cut land, and the predicted fuel consumption of the uncut land are displayed as a measurement screen on the display screen of the liquid crystal panel 67 in step S19. Is displayed.

When the fuel prediction process of step S12 is completed, the process proceeds to step S13 and the number of times of discharge prediction process is executed. In this discharge number prediction process, based on the tank capacity of the grain tank 8 and the predicted uncut harvest amount (volume) of the uncut land calculated in the yield prediction process in step S11, until the harvesting work of the entire field is completed, Calculate the number of discharge times of the grain tank 8 required for . Based on the actual amount of harvest per unit area of the already harvested land and the work time required for the harvesting work of the already harvested land, it is also possible to determine how long the grain tank 8 can be harvested until it is full. Calculate expected time. As shown in FIG. 13, the number of times the grain tank 8 is discharged and the expected next discharge time are displayed as a measurement screen on the display screen of the liquid crystal panel 67 in step S19.

After completion of the number-of-discharges prediction process in step S13, the process proceeds to step S14 and the work time prediction process is executed. In this work time prediction process, after calculating the work time per unit area (mesh) from the actual data of the harvested land, the estimated work time of the uncut land is calculated based on the area ratio of the harvested land and the uncut land. do. Here, when calculating the predicted work time for the uncut land, the number of discharges (predetermined time x number of times) calculated in the prediction process of the number of discharges in step S13 may be taken into account. can be reduced. Then, the estimated work time for the entire field is calculated by adding the actual work time for the already-cut land and the estimated work time for the uncut land. Calculate As shown in FIG. 13, the predicted work time for the entire field, the actual work time for the already harvested land, the predicted work time for the uncut land, and the predicted work completion time are measured on the display screen of the liquid crystal panel 67 in step S19. displayed as a screen.

When the working time prediction process of step S14 ends, the process proceeds to step S15 and the storage volume calculation process is executed. In this storage volume calculation process, a correlation table that associates the relationship between the height and volume of the grain tank 8 is stored in the storage device 69 of the control unit 51. Based on the measured value of the switch 42 and the storage volume of the grain is calculated. Also, based on the moisture content of the grain detected by the moisture sensor 50 and the set value of the crop setting dial 62, the calculated storage volume of the grain is converted into storage weight. Calculation of the storage volume and storage weight of these grains is always performed during harvesting work in the field, and as shown in FIG. weight conversion (kg)" is displayed on the work screen of the liquid crystal panel 67. In the present embodiment, based on the storage volume calculated in the storage volume calculation processing, the overall predicted yield of the entire field calculated in the yield prediction processing in step S11, the actual yield of the already cut land, the uncut yield The predicted yield of the land is displayed in volume (liters).

When the stored volume calculation process of step S15 ends, the process proceeds to step S16 to execute the fuel warning process. FIG. 8 is a flowchart showing the control flow of fuel warning processing. As shown in FIG. 8, in this fuel warning process, first, in step S161, actual data of already-harvested land obtained using the detection value of the fuel detection sensor 61 (actual fuel consumption during traveling of already-harvested land). Calculate the fuel consumption per unit area (mesh) based on Next, the process proceeds to step S162, and after calculating the predicted fuel consumption required to harvest the uncut land based on the fuel consumption per unit area, the process proceeds to step S163, and the actual fuel consumption of the already cut land is calculated. By summing the consumption amount and the predicted fuel consumption amount of the uncut land, the predicted fuel consumption amount required to harvest the entire field is calculated. As shown in FIG. 13, the actual fuel consumption of the already-cut land, the predicted fuel consumption of the uncut land, and the predicted fuel consumption of the entire field are displayed as a measurement screen on the display screen of the liquid crystal panel 67 in step S19. Is displayed. Next, the process proceeds from step S163 to step S164 to determine whether or not the predicted fuel consumption required for harvesting the uncut land is sufficient for the remaining amount of fuel in the fuel tank. If it is less than the remaining amount of fuel in the tank (YES), the process proceeds to step S165 to display "OK" on the measurement screen of the liquid crystal panel 67, and if the estimated fuel consumption exceeds the remaining amount of fuel in the fuel tank. (NO), the process proceeds to step S166 to display the character "NG" on the measurement screen of the liquid crystal panel 67. FIG. The display of "OK" or "NG" is performed in step S19.

When the fuel warning process in step S16 ends, the process proceeds to step S17 and the refueling warning process is executed. FIG. 9 is a flow chart showing the control flow of the refueling warning process. As shown in FIG. 9, in this fueling alarm process, first, in step S171, based on the actual data of the already harvested land obtained using the detection values of the microswitch 42 and the fuel detection sensor 61, After calculating the harvested amount and the fuel consumption amount, in step S172, based on the harvested amount and the fuel consumption amount per unit area, the required fuel consumption amount required until the grain tank 8 is full is calculated. do. Next, in step S173, it is determined whether or not the remaining amount of fuel is insufficient for the required fuel consumption calculated in step S172.

In step S173, if the required fuel consumption amount is insufficient for the remaining amount of fuel (YES), the process proceeds to step S174 to check whether or not the grain tank 8 is being discharged. Then, when it is determined in step S174 that the grain is being discharged, the process proceeds to step S175, and "fueling alarm" is displayed on the work screen of the liquid crystal panel 67 shown in FIG. A refueling alarm for prompting refueling is notified by ringing. Note that the actual notification of the refueling warning is performed in step S19. If it is determined in step S173 that the required fuel consumption amount is insufficient for the remaining amount of fuel (YES), the condition for the grain discharge state in step S174 is omitted, and the process proceeds directly to step S175. You may make it alert|report a refueling warning.

Further, in the control flow of the refueling warning process shown in FIG. 9, it is possible to change the processing contents of steps S172 and S173 as described below. That is, in step S172, the remaining area (grain tank full reference value) is calculated as to how much area can be harvested until the grain tank 8 becomes full, and how much more area can be harvested before the fuel tank becomes empty. After calculating the remaining area (fuel tank full reference value) whether the area can be harvested, in step S173, it is determined whether at least one of the grain tank full reference value and the fuel tank full reference value exceeds the refueling alarm judgment value. is determined, and if the determination value for the refueling warning is exceeded (YES), the process may proceed to step S175.

When the fueling warning process in step S17 ends, the process proceeds to step S18 and the grain warning process is executed. FIG. 10 is a flow chart showing the control flow of grain alarm processing. As shown in FIG. 10, in this grain alarm process, first, in step S181, it is determined whether or not the grain tank 8 is full based on the detection value of the microswitch 42, and if the grain tank 8 is full ( YES), the process proceeds to step S182, and by displaying the characters "grain full warning" on the work screen of the liquid crystal panel 67 shown in FIG. 8 is full.

On the other hand, if it is determined in step S181 that the grain tank 8 is not full (NO), the process proceeds to step S183 to check whether or not the storage target alarm switch 64 is ON. If it has been turned on (YES), the process proceeds to step S184. Then, in step S184, it is determined whether or not the amount of storage in the grain tank 8 has reached the storage target value set by the storage target adjustment switch 63. If the storage target value has been reached (YES), the process proceeds to step S185. 14, or by sounding the alarm buzzer of the notification device 66, the grain tank 8 reaches the storage target value. An alert to that effect is notified. Note that the actual notification of steps S182 and S185 is performed in step S19.

When the grain warning process of step S18 ends, the process proceeds to step S19, executes the data output process, and then returns to the start. FIG. 11 is a flowchart showing the control flow of data output processing. As shown in FIG. 11, in this data output process, first, in step S191, it is checked whether or not the data output condition is satisfied. Display data is output to the liquid crystal panel 67 of the display device 65 arranged in the driving operation unit 5 . Further, in step S193, data is output from the communication device 71 to the external terminal 72. FIG. The above data output condition is that a timer that repeatedly counts becomes 0, or a specific event such as turning is performed. That is, data output is performed at regular time intervals or each time a specific event is performed.

In step S9 of FIG. 7, when it is determined that there is a measurement end command (YES), the process proceeds to step S20, and after data is stored as field data in the storage device 69 of the control unit 51, the process proceeds to step S21. After switching the measurement flag from "2" to "0", it returns to the start. Note that the measurement end command is issued by turning on the measurement end switch 60. In addition to this, when the mesh of the yield map shown in FIG. It is also possible to end the measurement at the point in time when the Further, the control unit 51 repeats the processing of steps S10 to S19 until it is determined in step S9 that there is a measurement end command. For this reason, as the combine 1 advances the harvesting work of the field, the actual data of the already harvested land (for example, the harvested area, the amount of grain harvested, the amount of fuel consumed, the working time, etc.) increases, and the error in the predicted calculation value increases. It gradually converges into a smaller size. This allows sequential data updates to provide more accurate predicted calculations.

As described above, the combine harvester 1 according to the present embodiment measures the traveling locus when the outer circumference of the field is reaped by the machine body position detection sensor 52 mounted on the traveling machine body 3, and based on this performance data. After calculating the field area of the harvested land and the uncut land, calculate the total predicted yield of the entire field based on the yield of the harvested land measured by the grain detection unit 39 (microswitch 42), Since the overall predicted yield is displayed on the display device 65 (liquid crystal panel 67) arranged in the operation control unit 5, the operator of the combine harvester 1 can instantly grasp the yield of the entire field from the display screen. It is possible to efficiently arrange a transport vehicle for transporting and storing the grains in the grain tank 8.

Also, based on the tank capacity of the grain tank 8 and the predicted uncut yield of the uncut land, the number of discharge times of the grain tank 8 required until the mowing work of the entire field is completed is calculated, and the number of discharge times is displayed. Since the information is displayed on the device 65, the operator can grasp the number of times the grain tank 8 has been discharged, and the subsequent work can be made more efficient.

In addition, the predicted work time required for the cutting work of the uncut land is calculated based on the work time required for the cutting work of the already cut land, and the predicted work time is displayed on the display device 65. It is possible to predict the end time and consider the work after that.

In addition, since the predicted work time is calculated taking into account the number of times the grain tank 8 is discharged (required time x number of times), errors in the predicted work time can be reduced.

Further, since data is output from the communication device 71 of the control unit 51 to the external terminal 72, information can be shared with the base station, the truck driver, other workers and assistants.

In addition, the combine 1 of the present embodiment includes a grain detection unit 39 (a pile height detection sensor) that detects the pile height of the grains stored in the grain tank 8, and the grain detection unit 39 measures Based on the value, the storage volume in the grain tank 8 is calculated, and the calculated storage volume is displayed on the display device 65 (liquid crystal panel 67) arranged in the operation unit 5, so that the operator of the combine can see the inside of the grain tank. The storage amount of grains and the loading amount of the truck can be exchanged on the same basis, and the error between the two can be reduced.

In addition, when the storage volume of the grain tank 8 reaches a preset volume, this is notified by the operation of an alarm buzzer or an alarm lamp of the notification device 66. When the amount of loading is limited, an error can be reduced compared to the case of intuitively harvesting by notifying when the amount of storage corresponding to the amount of loading is reached.

Further, the storage weight is calculated based on the calculated storage volume of the grains and the moisture content of the grains detected by the moisture sensor 50, and the storage weight is displayed on the display device 65. Not only can the storage amount of grains and the loading amount of the truck be exchanged on the same basis, but also the weight of the grains in the grain tank 8 can be displayed to improve convenience.

In addition, since the agitating device 46 is provided over the top and bottom of the grain tank 8 and the grains stored in the grain tank 8 are smoothed by the agitating device 46, the control unit 51 increases the storage volume. It can be calculated with high accuracy.

In addition, the combine 1 of the present embodiment measures the actual reaping traveling locus when performing the perimeter reaping work of the field by the machine body position detection sensor 52 mounted on the traveling machine body 3, and based on this actual data, After calculating the field area of the uncut land, the predicted fuel consumption of the uncut land is calculated based on the fuel consumption of the already cut land obtained using the detection value of the fuel detection sensor 61, and this predicted fuel Since the consumption amount is displayed on the display device 65 (liquid crystal panel 67), the operator of the combine harvester can accurately grasp the amount of fuel required for the remaining uncut land, thereby improving the efficiency of subsequent work. can be done. In addition, since the predicted fuel consumption of uncut land is calculated based on the actual fuel consumption of already-cut land, the predicted fuel consumption that matches the field conditions can be easily calculated without the need for complicated arithmetic processing. be able to.

In addition, an informing device 66 capable of informing the operator is provided, and when the peripheral mowing work is completed, the remaining amount of fuel in the fuel tank is compared with the predicted fuel consumption of the uncut land, and the amount of remaining fuel is compared with the predicted fuel consumption. When the amount of fuel is insufficient, the fact is notified by the operation of the alarm buzzer or the alarm lamp of the notification device 66, so that the operator can surely recognize the shortage of fuel.

It also has a grain detection unit 39 (microswitch 42) that detects the storage amount of the grain tank 8, and the grain tank 8 becomes full based on the harvested amount of the already harvested land measured by this grain detection unit 39. The required fuel consumption is calculated until the required fuel consumption is calculated, and when the remaining amount of fuel is insufficient for the required fuel consumption, the notification device 66 notifies the user. 8 is filling up).

Further, at the timing of discharging the grains in the grain tank 8, the notification device 66 issues a refueling alarm based on the predicted fuel consumption amount and the required fuel consumption amount. Work can be performed, and work efficiency can be improved.

It should be noted that the storage amount detection means of the grain tank 8 is not limited to the grain detection unit 39 as in the present embodiment, as long as it can detect the grain storage height over the top and bottom of the grain tank 8. Luckily, it is also possible to use an ultrasonic sensor or the like instead of the microswitch 42 .

Reference Signs List 1 combine 3 traveling machine body 4 reaping unit 5 operation operation unit 6 threshing unit 8 grain tank 9 discharge auger 39 grain detection unit (accumulation height detection sensor)
42 Microswitch 46 Stirrer 50 Moisture sensor 51 Control unit (control means)
52 aircraft position detection sensor 61 fuel detection sensor 62 crop setting dial 65 display device (display means)
66 notification device (notification means)
67 liquid crystal panel (display means)

Claims (4)

a harvesting unit for harvesting grain stalks in a field;
a threshing unit for threshing the culms harvested by the harvesting unit;
a grain tank for storing grains threshed in the threshing unit;
A pile height detection sensor that detects the pile height of grains stored in the grain tank;
machine body position measuring means for measuring the position of the traveling machine body in the field;
Control means for calculating a storage volume of grains stored in the grain tank based on the measured value of the pile height detection sensor;
display means for displaying the storage volume;
A communication device that outputs data to an external terminal ,
The control means calculates the area of the harvested land that has already been harvested and the uncut land that has not yet been harvested at the stage when the outer periphery of the field has been harvested, and is measured by the accumulation height detection sensor. a total predicted yield of the entire farm field is calculated based on the harvested yield of the already harvested land, and the overall predicted yield can be displayed on the display means in a volume display, and the external terminal via the communication device; data can be output to
A combine characterized by: a notification means for notifying when the storage volume calculated by the control means reaches a preset volume;
A combine according to claim 1. A moisture sensor that detects the moisture content of the grains stored in the grain tank,
The control means calculates a stored weight based on the calculated stored volume of the grain and the moisture content of the grain detected by the moisture sensor, and displays the stored weight on the display means.
A combine according to claim 1. Equipped with a stirring device that smoothes the accumulated state of the grains stored in the grain tank,
A combine according to claim 1.

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