Combine

Abstract

To provide a combine capable of maintaining efficiency of reaping work in a predetermined range without depending on an operator's work experience.SOLUTION: A controller (40) of a steering part (5) compares a total time from the start of a travelling device (2) to the stop of driving of a discharge auger (8) with a first reference time, which is a previous total time stored in the controller (40), and if the total time is longer than the first reference time, the controller executes a warning display on a monitor (11) of the steering part (5).SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a combine harvester equipped with a continuously variable transmission that increases or decreases the rotational speed of an engine. [Background technology]

[0002] In conventional combine harvesters, a technique is known for increasing or decreasing the traveling speed of the traveling device and the reaping speed of the reaper by operating a speed change lever in accordance with the state of the field and the planting condition of the stalks (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-191835 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the technology of Patent Document 1, the efficiency of the mowing work varies greatly depending on the worker's work experience, and generally, there is a risk that workers with little work experience will take longer to mow.

[0005] Therefore, an object of the present invention is to provide a combine harvester that can maintain the efficiency of harvesting work within a predetermined range regardless of the working experience of the operator. [Means for solving the problem]

[0006] The present invention which has solved the above problems is as follows. That is, the invention described in claim 1 is a combine harvester in which a traveling device (2) is provided under a machine frame (1) on which an engine (E) is mounted, a reaping device (3) for reaping stalks is provided in front of the machine frame (1), a threshing device (4) for threshing and sorting grains from the stalks is provided on the rear left side of the reaping device (3), a control section (5) on which an operator sits is provided on the rear right side of the reaping device (3), a grain tank (7) for storing grains is provided behind the control section (5), and a discharge auger (8) for discharging grains to the outside is provided behind the grain tank (7), The controller (40) of the steering section (5) compares the total time from when the traveling device (2) is started to when the drive of the discharge auger (8) is stopped with a first reference time, which is the previous total time stored in the controller (40), and if the total time is longer than the first reference time, displays a warning on the monitor (11) of the steering section (5).

[0007] The invention described in claim 2 is a combine described in claim 1, in which the first reference time is calculated by multiplying the previous total time by a first correction coefficient (K1) based on the lodging state of the stalks and a second correction coefficient (K2) based on the inclination angle of the body frame (1).

[0008] The invention described in claim 3 is the combine harvester described in claim 1, in which the controller (40) compares a stop time during which the traveling device (2) is stopped with a second reference time, which is a previous stop time stored in the controller (40), and if the stop time is longer than the second reference time, displays the warning to the effect that the operation of the engine (E) will be stopped.

[0009] The invention described in claim 4 is the combine harvester described in claim 1, in which the controller (40) compares a simple running time during which the traveling device (2) is traveling and the drive of the reaping device (3) and the threshing device (4) is stopped with a third reference time, which is the previous simple running time stored in the controller (40), and if the simple running time is longer than the third reference time, displays the warning to increase the running speed of the traveling device (2).

[0010] The invention described in claim 5 is a combine described in claim 4, in which the third reference time is calculated by multiplying the previous simple running time by a first correction coefficient (K1) based on the lying state of the stalks and a second correction coefficient (K2) based on the inclination angle of the body frame (1).

[0011] The invention described in claim 6 is the combine harvester described in claim 1, in which the controller (40) compares the reaping operation time during which the traveling device (2) is traveling and the reaping device (3) and the threshing device (4) are operating with a fourth reference time, which is the previous reaping operation time stored in the controller (40), and if the reaping operation time is longer than the fourth reference time, displays the warning to increase the traveling speed of the traveling device (2), the reaping speed of the reaping device (3), and the threshing speed of the threshing device (4).

[0012] The invention described in claim 7 is a combine described in claim 6, in which the fourth reference time is calculated by multiplying the previous harvesting work time by a first correction coefficient (K1) based on the lying state of the stalks and a second correction coefficient (K2) based on the inclination angle of the body frame (1).

[0013] The invention described in claim 8 is the combine harvester described in claim 1, in which the controller (40) compares a discharge time during which the traveling device (2) stops traveling and the discharge auger (8) is driven to discharge grains to the outside with a fifth reference time, which is the previous discharge time stored in the controller (40), and if the discharge time is longer than the fifth reference time, displays the warning to increase the discharge speed of the discharge auger (8).

[0014] The invention described in claim 9 is the combine harvester described in claim 1, further comprising: a continuously variable transmission (30) for increasing or decreasing the output rotation of the engine (E) provided in a transmission path between the engine (E) and the traveling device (2); a harvesting clutch (32) provided in a transmission path between the continuously variable transmission (30) and the harvesting device (3); a threshing clutch (33) provided in a transmission path between the engine (E) and the threshing device (4); and a discharge clutch (34) provided in a transmission path between the engine (E) and the discharge auger (8). The operation unit (5) is further provided with an engine control switch (15) for increasing or decreasing the output rotation of the engine (E), a speed change lever (21) for increasing or decreasing the output rotation of the continuously variable transmission (30), a harvesting and de-coupling lever (26) for connecting and disconnecting the harvesting clutch (32) and the threshing clutch (33), and a discharge lever (27) for connecting and disconnecting the discharge clutch (34). Effect of the Invention

[0015] According to the invention described in claim 1, the controller (40) of the operating unit (5) compares the total time from the start of the traveling device (2) to the stop of the drive of the discharge auger (8) with a first reference time, which is the previous total time stored in the controller (40), and if the total time is longer than the first reference time, a warning is displayed on the monitor (11) of the operating unit (5). This allows the worker to objectively determine whether the mowing work is being performed more efficiently than the previous mowing work, and even a worker with little work experience can maintain the efficiency of the mowing work within a specified range.

[0016] According to the invention described in claim 2, in addition to the effects of the invention described in claim 1, the first reference time is calculated by multiplying the previous total time by a first correction coefficient (K1) based on the lying state of the stalks and a second correction coefficient (K2) based on the inclination angle of the machine frame (1). Therefore, it is possible to more objectively judge whether the current harvesting work is being performed more efficiently than the previous harvesting work by taking into account the lying state of the stalks in the field, etc.

[0017] According to the invention recited in claim 3, in addition to the effects of the invention recited in claim 1, the controller (40) compares the stop time during which the traveling device (2) is stopped with a second reference time, which is the previous stop time stored in the controller (40), and if the stop time is longer than the second reference time, displays a warning to the effect that the operation of the engine (E) will be stopped. Therefore, the engine (E) is stopped to shorten the stop time, and exhaust gas emission can be suppressed.

[0018] According to the invention of claim 4, in addition to the effects of the invention of claim 1, the controller (40) compares the simple running time during which the traveling device (2) is traveling and the drive of the reaping device (3) and the threshing device (4) is stopped with a third reference time, which is the previous simple running time stored in the controller (40), and if the simple running time is longer than the third reference time, a warning display is given to increase the running speed of the traveling device (2), so that the grain can be quickly approached to the discharge vehicle that discharges the grain.

[0019] According to the invention described in claim 5, in addition to the effect of the invention described in claim 4, the third reference time is calculated by multiplying the previous simple running time by the first correction coefficient (K1) based on the fallen state of the stalks and the second correction coefficient (K2) based on the inclination angle of the machine frame (1), so that the machine can approach the unloading vehicle more quickly by taking into account the inclination angle of the machine frame (1), etc.

[0020] According to the invention of claim 6, in addition to the effects of the invention of claim 1, the controller (40) compares the reaping operation time during which the traveling device (2) is traveling and the reaping device (3) and the threshing device (4) are operating with a fourth reference time, which is the previous reaping operation time stored in the controller (40), and if the reaping operation time is longer than the fourth reference time, a warning is displayed to increase the traveling speed of the traveling device (2), the reaping speed of the reaping device (3), and the threshing speed of the threshing device (4). This makes it possible to efficiently perform reaping operation and shorten the reaping operation time.

[0021] According to the invention described in claim 7, in addition to the effects of the invention described in claim 6, the fourth reference time is calculated by multiplying the previous harvesting work time by a first correction coefficient (K1) based on the lying state of the stalks and a second correction coefficient (K2) based on the inclination angle of the machine frame (1), so that harvesting work can be performed more efficiently by taking into account the lying state of the stalks in the field, etc.

[0022] According to the invention of claim 8, in addition to the effects of the invention of claim 1, the controller (40) compares the discharge time during which the traveling device (2) stops traveling and the discharge auger (8) is driven to discharge grains to the outside with a fifth reference time, which is the previous discharge time stored in the controller (40), and if the discharge time is longer than the fifth reference time, a warning is displayed to increase the discharge speed of the discharge auger (8). This makes it possible to efficiently perform the discharge work and shorten the discharge time.

[0023] According to the invention of claim 9, in addition to the effects of the invention of claim 1, a continuously variable transmission (30) for increasing or decreasing the output rotation of the engine (E) is provided in the power transmission path between the engine (E) and the traveling device (2), a reaping clutch (32) is provided in the power transmission path between the continuously variable transmission (30) and the reaping device (3), a threshing clutch (33) is provided in the power transmission path between the engine (E) and the threshing device (4), and a discharge clutch (34) is provided in the power transmission path between the engine (E) and the discharge auger (8). The operating section (5) is provided with an engine control switch (15) for increasing or decreasing the output rotation of the engine (E), a speed change lever (21) for increasing or decreasing the output rotation of the continuously variable transmission (30), a reaping / de-threshing lever (26) for connecting and disconnecting the reaping clutch (32) and the threshing clutch (33), and a discharge lever (27) for connecting and disconnecting the discharge clutch (34), so that the traveling speed of the traveling device (2) and the reaping speed of the reaping device (3), etc. can be easily increased or decreased. [Brief description of the drawings]

[0024] [Figure 1] FIG. [Diagram 2] FIG. [Diagram 3]FIG. [Figure 4] 3 is a transmission diagram of the output rotation of the engine. [Diagram 5] FIG. 2 is a connection diagram of a controller. [Figure 6] FIG. 13 is an explanatory diagram of a method for evaluating harvesting work. [Figure 7] FIG. 13 is an explanatory diagram of a method for evaluating harvesting work. [Figure 8] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] As shown in Figures 1 to 3, the combine harvester has a traveling device 2 consisting of a pair of left and right crawlers that travel on the soil surface on the underside of a body frame 1, a harvesting device 3 that harvests stalks in the field is provided on the front side of the body frame 1, a threshing device 4 that threshes and sorts the harvested stalks is provided on the rear left side of the harvesting device 3, and a control unit 5 on which an operator rides is provided on the rear right side of the harvesting device 3.

[0026] An engine room 6 for storing the engine E is provided below the control unit 5, a grain tank 7 for storing the threshed and sorted grains is provided behind the control unit 5, and a discharge auger 8 for discharging the stored grains to the outside is provided behind the grain tank 7.

[0027] A front panel 10 is provided in front of the cockpit of the control section 5, and a side panel 20 is provided to the left of the cockpit.

[0028] A touch panel monitor 11 that displays the traveling speed of the combine harvester and the like is provided on the left side of the front panel 10, and an operating lever 12 that controls the rotation of the traveling device 2 and the raising and lowering of the harvesting device 3 is provided on the right side. A start switch 13 that starts the engine E is provided between the monitor 11 and the operating lever 12, and an engine control switch 15 that increases or decreases the output rotation of the engine E is provided above the start switch. In addition, a parking brake 14 that stops the traveling device 2 is provided on the left side of the lower side of the front panel 10. The operating position of the operating lever 12 is measured by an angle sensor such as a potentiometer attached to the lower part of the operating lever 12, and the depression amount of the parking brake 14 is measured by an angle sensor 14S such as a potentiometer attached to the lower part of the parking brake 14.

[0029] A main speed change lever (referred to as "speed change lever" in the claims) 21 for operating the continuously variable transmission 30 is provided at the front of the side panel 20, and a sub-speed change lever 22 for operating a transmission 31 for increasing or decreasing the output rotation of the continuously variable transmission 30 is provided behind the main speed change lever 21, and a lodging switch 23 for slowing down the traveling speed of the traveling device 2 when many of the stalks are lying down is provided on the left side of the main speed change lever 21.

[0030] A reaping / detaching lever 26 for engaging and disengaging the reaping clutch 32 and the threshing clutch 33 is provided behind the sub-speed change lever 22, and an angle measuring device 24 such as a gyroscope for measuring the tilt angles in the front-rear and left-right directions of the machine frame 1, and a positioning device 25 for receiving information from a positioning satellite or a base station are provided on the left side of the sub-speed change lever 22. This makes it possible to identify the field where the combine is performing reaping work and to easily compare the total time described below with the previous total time, etc. The machine frame 1 is provided with a pitching cylinder 1A for returning the inclined posture to a horizontal posture when the inclination angle in the front-rear direction becomes equal to or greater than a predetermined value, and a rolling cylinder 1B for returning the inclined posture to a horizontal posture when the inclination angle in the left-right direction becomes equal to or greater than a predetermined value.

[0031] A discharge lever 27 for operating the connection and disconnection of the discharge clutch 34 is provided on the left side of the cutting / removal lever 26 .

[0032] When the main speed change lever 21 is in the neutral position, the output rotation of the continuously variable transmission 30 becomes zero. When the main speed change lever 21 is tilted from the neutral position to the front side tilt position, the rotation direction of the output rotation of the continuously variable transmission 30 becomes forward rotation, which is the same as the rotation direction of the output rotation of the engine E. When the tilt angle of the front side tilt position is increased, the output rotation of the continuously variable transmission 30 is increased, and when the tilt angle of the front side tilt position is decreased, the output rotation of the continuously variable transmission 30 is decreased. When the main speed change lever 21 is tilted from the neutral position to the rear side tilt position, the rotation direction of the output rotation of the continuously variable transmission 30 becomes reverse rotation, which is opposite to the rotation direction of the output rotation of the engine E. When the tilt angle of the rear side tilt position is increased, the output rotation of the continuously variable transmission 30 is increased, and when the tilt angle of the rear side tilt position is decreased, the output rotation of the continuously variable transmission 30 is decreased. The operating position of the main speed change lever 21 is measured by an angle sensor 21S, such as a potentiometer, attached to the lower part of the main speed change lever 21.

[0033] When the sub-speed change lever 22 is in the rear tilted position, the output rotation of the transmission 31 is not increased or decreased. When the sub-speed change lever 22 is in the front tilted position from the rear tilted position, the output rotation of the transmission 31 is increased. The operating position of the sub-speed change lever 22 is measured by an angle sensor such as a potentiometer attached to the lower part of the sub-speed change lever 22.

[0034] When the mowing / threshing lever 26 is in the forward tilted position, the mowing clutch 32 is disengaged from the threshing clutch 33. When the mowing / threshing lever 26 is in the rearward tilted position, the mowing clutch 32 is engaged with the threshing clutch 33. When the mowing / threshing lever 26 is in a neutral position which is between the forward tilted position and the rearward tilted position, the mowing clutch 32 is disengaged and the threshing clutch 33 is engaged. The operating position of the mowing / threshing lever 26 is measured by an angle sensor 26S, such as a potentiometer, attached to the bottom of the mowing / threshing lever 26.

[0035] When the discharge lever 27 is tilted forward, the discharge clutch 34 is disengaged. When the discharge lever 27 is tilted backward, the discharge clutch 34 is engaged. The operating position of the discharge lever 27 is measured by an angle sensor 27S, such as a potentiometer, attached to the lower part of the discharge lever 27.

[0036] <Engine output rotation transmission diagram> 4, the output rotation of the engine E is transmitted to the continuously variable transmission 30 provided on the transmission path L1. The output rotation of the engine E transmitted to the continuously variable transmission 30 is accelerated or decelerated and its rotation direction is switched within the continuously variable transmission 30, and then output to the output shafts 35 and 36.

[0037] The output rotation output to the output shaft 35 is transmitted to the transmission 31, where it is accelerated or decelerated by the multiple gears within the transmission 31, and output to the output shaft 37, and the output rotation output to the output shaft 36 is transmitted to the harvesting device 3 via the harvesting clutch 32 to drive the lifting device, etc.

[0038] The output rotation output to the output shaft 37 is transmitted to the traveling device 2 to rotate the pair of left and right crawlers.

[0039] The output rotation of the engine E is transmitted to the threshing device 4 via a threshing clutch 33 provided in the transmission path L2 to rotate the threshing drum, etc.

[0040] The output rotation of the engine E is transmitted to the discharge auger 8 via a discharge clutch 34 provided on the transmission path L3 to rotate the conveying spiral and the like.

[0041] <Controller connection diagram> As shown in FIG. 5, the controller 40 is formed from a processing unit 41 consisting of a CPU etc., a memory unit 42 consisting of a ROM, a RAM, a hard disk drive, a flash memory etc., a timer 43, and a communication unit 44 for data communication with the outside.

[0042] The processing unit 41 compares the working time of the mowing work with the working time of the previous mowing work stored in the memory unit 62, and issues a warning or the like if the working time of the mowing work is longer than the working time of the previous mowing work.

[0043] The memory unit 42 stores the work time of the previous harvesting work, the correction coefficient K inputted in advance from the monitor 11, and the like.

[0044] The timer 43 measures the elapsed time T from when the engine E is started until the discharge of grains is completed.

[0045] The communication unit 44 transmits and receives driving information and the like to and from positioning satellites and base stations.

[0046] The input side of the controller 60 is connected, via a specified input interface circuit, to the start switch 13 which starts the engine E, an angle sensor 14S which measures the amount of depression of the parking brake 14, an angle sensor 21S which measures the operating position of the main speed change lever 21 which controls the acceleration / deceleration of the output rotation of the continuously variable transmission 30, a tilting switch 23 which reduces the traveling speed of the traveling device 2, an angle measuring device 24 which measures the inclination angle of the machine frame 1, an angle sensor 26S which measures the operating position of the mowing / threshing lever 26 which connects the mowing clutch 32 and the threshing clutch 33, etc., and an angle sensor 27S which measures the operating position of the discharge lever 27 which connects the discharge clutch 34, etc.

[0047] The output side of the controller 60 is connected via a specified output interface circuit to a pitching cylinder 1A that keeps the fore-aft direction of the aircraft frame 1 in a horizontal position, a rolling cylinder 1B that keeps the left-right direction of the aircraft frame 1 in a horizontal position, and a monitor 11 that displays warnings.

[0048] <Evaluation method for harvesting work> 6 and 7, in step S1, the processing unit 41 of the controller 40 determines whether or not the engine E is started. If it is determined that the start switch 13 for starting the engine E has been pressed, the process proceeds to step S2, and if it is determined that the start switch 13 has not been pressed, step S1 is repeated.

[0049] In step S2, the processing unit 41 starts the timer 43A and proceeds to step S3. The timer 43A measures a total time, which is the sum of the stop time measured by the timer 43B, the simple running time measured by the timer 43C, the reaping operation time measured by the timer 43D, and the discharge time measured by the timer 43D.

[0050] In step S3, the processing unit 41 judges whether the traveling device 2 is traveling or not. If it is judged that the measurement value of the angle sensor 14S, which measures the amount of depression of the parking brake 14 that stops the traveling device 2 from traveling, indicates that the parking brake 14 is depressed, the process proceeds to step S4, and if it is judged that the measurement value of the angle sensor 14S does not indicate that the parking brake 14 is depressed, the process proceeds to step S7.

[0051] It is also possible to use the measurement value of angle sensor 21S, which measures the operating posture of main speed change lever 21 that operates continuously variable transmission 30, instead of the measurement value of angle sensor 14S. If it is determined that the measurement value of angle sensor 21S indicates the neutral posture, the process proceeds to step S4, and if it is determined that the measurement value of angle sensor 21S indicates the forward tilt posture, the process proceeds to step S7.

[0052] In step S4, the processing unit 41 starts the timer 43B, and the process proceeds to step S5. The timer 43B measures the travel stop time during which the travel device 2 is stopped.

[0053] In step S5, the processing unit 41 judges whether the traveling device 2 is traveling or not. If it is judged that the measurement value of the angle sensor 14S, which measures the amount of depression of the parking brake 14 that stops the traveling device 2 from traveling, indicates that the parking brake 14 is being depressed, the processing unit 41 repeats step S5, and if it is judged that the measurement value of the angle sensor 14S does not indicate that the parking brake 14 is being depressed, the processing unit 41 proceeds to step S6.

[0054] In step S6, the processing unit 41 stops the timer 43B and proceeds to step S7. The measurement value of the timer 43B is stored in the storage unit 42 together with the field 50.

[0055] In step S7, the processing unit 41 starts the timer 43C and proceeds to step S8. The timer 43C measures the simple travel time during which the traveling device 2 travels with the driving of the reaping device 3, the thresher 4, and the discharge auger 8 stopped. For example, as shown in Fig. 8, this is the time during which the combine harvester travels along a moving path 52 that moves away from a reaping path 51 and toward a transport vehicle 55 such as a truck parked outside the field 50 in order to discharge grains stored in a grain tank 7 of the combine harvester that has been performing reaping work in the field 50. The moving path 53 and the reaping path 54 shown by the dashed lines indicate the paths after the grains are discharged.

[0056] In step S8, the processing unit 41 determines whether the reaping device 3 and the threshing device 4 are operating. If it is determined that the measurement value of the angle sensor 26S, which measures the operating position of the mowing / removal lever 26, indicates that the mowing clutch 32 and the threshing clutch 33 are connected, proceed to step S9, and if it is determined that the measurement value of the angle sensor 26S indicates that at least the mowing clutch 32 or the threshing clutch 33 is disconnected, step S8 is repeated.

[0057] In step S9, the processing unit 41 stops the timer 43C and proceeds to step S10. The measurement value of the timer 43C is stored in the storage unit 42 together with the field 50.

[0058] In step S10, the processing unit 41 starts the timer 43D, and the process proceeds to step S11. The timer 43D measures the reaping operation time during which the reaping device 3 and the threshing device 4 are driven to perform the reaping operation.

[0059] In step S11, the processing unit 41 determines whether the discharge auger 8 is driven. If it is determined that the measurement value of the angle sensor S27 that measures the operating attitude of the discharge lever 27 indicates that the discharge clutch 34 is engaged, the process proceeds to step S12, and if it is determined that the measurement value of the angle sensor S27 indicates that the discharge auger 8 is disengaged, step S11 is repeated.

[0060] In step S12, the processing unit 41 stops the timer 43D and proceeds to step S 13. The measurement value of the timer 43B is stored in the memory unit 42 together with the field 50.

[0061] In step S13, the processing unit 41 starts the timer 43E and proceeds to step S14. The timer 43E measures the discharge time during which the discharge auger 8 is driven to discharge the grains stored in the grain tank 7 to the external transport vehicle 55.

[0062] In step S14, the processing unit 41 determines whether or not the drive of the discharge auger 8 has stopped. If it is determined that the measurement value of the angle sensor 27S indicates that the discharge clutch 34 is released, the process proceeds to step S15, and if it is determined that the measurement value of the angle sensor S27 indicates that the discharge clutch 34 is engaged, step S14 is repeated.

[0063] In step S15, the processing unit 41 stops the timer 43E, and proceeds to step S16. The measurement value of the timer 43E is stored in the storage unit 42 together with the field 50.

[0064] In step S16, the processing unit 41 stops the timer 43A, and proceeds to step S17. The measurement value of the timer 43A is stored in the storage unit 42 together with the field 50.

[0065] In step S17, processing unit 41 compares the measurement value of timer 43A with a reference time (the "first reference time" in the claims) obtained by multiplying the measurement value of the previous timer 43A stored in memory unit 42 by correction coefficient K1,2. If the measurement value of timer 43A is less than or equal to the reference time, the process proceeds to step S18, and if the measurement value of timer 43A is greater than the reference time, the process proceeds to step S19. Note that if the farm field in which the reaping operation is being performed is large and the grain discharge operation needs to be performed several times, it is preferable to compare the total of the measurement values ​​of timer 43A for several times with the total of the measurement values ​​of the previous timer 43A for several times.

[0066] The correction coefficient ("first correction coefficient" in the claims) K1 is a coefficient for correcting the lodging state of the culms. When the lodging switch 23 is not pressed, the correction coefficient K1 is set to 1, and when the lodging switch 23 is pressed, the correction coefficient K1 is input in advance from the monitor 11, and is preferably set to 1.2 to 1.4. This makes it possible to objectively determine whether the current reaping work is being performed more efficiently than the previous reaping work, taking into account the lodging state of the culms in the field.

[0067] The correction coefficient ("second correction coefficient" in the claims) K2 is a coefficient for correcting the inclination angle in the front-rear or left-right direction due to the muddyness of the field. When the measurement value of the angle measuring device 24 is equal to or less than a predetermined inclination angle, the correction coefficient K2 is set to 1, and when the measurement value of the angle measuring device 24 is greater than the predetermined inclination angle, the correction coefficient K2 is preferably set to 1.1 to 1.2, which is the correction coefficient inputted in advance from the monitor 11. This makes it possible to objectively determine whether the current reaping work is being performed more efficiently than the previous reaping work, taking into account the muddyness of the field. Also, when the measurement value of the angle measuring device 24 is greater than the predetermined inclination angle, the processing unit 41 drives the pitching cylinder 1A and the rolling cylinder 1B to reduce the inclination angle.

[0068] In step S18, the processing unit 41 displays on the monitor 11, for example, that the reaping work is being performed efficiently, and the measured value of the reaping work should be saved in the memory, and the process returns to step S1. Also, if the timer 43A is 10% or more shorter than the reference time, it is preferable to display a message such as, "Stop the engine E and take a rest." This allows the worker to objectively determine whether the current reaping work is being performed more efficiently than the previous reaping work. Note that if the field in which the reaping work is being performed is large and it is necessary to perform the grain discharge work several times,

[0069] In step S19, the processing unit 41 compares the measurement value of the timer 43B with a reference time (the "second reference time" in the claims) which is the previous timer 43B stored in the memory unit 42. If the measurement value of the timer 43B exceeds the reference time, the process proceeds to step S20, and if the measurement value of the timer 43B is equal to or less than the reference time, the process proceeds to step S21. Note that if the farm field in which the reaping operation is being performed is large and it is necessary to perform the grain discharge operation several times, it is preferable to compare the total of the measurement values ​​of the timer 43B for several times with the total of the measurement values ​​of the previous timer 43B for several times.

[0070] In step S20, the processing unit 41 displays a warning on the monitor 11, for example, to stop the engine E to suppress the exhaust of combustion gas, and the process proceeds to step S21. This allows the operator to stop the engine E, shorten the stop time, and suppress the emission of exhaust gas.

[0071] In step S21, the processing unit 41 compares the measurement value of the timer 43C with a reference time (the "third reference time" in the claims) obtained by multiplying the measurement value of the previous timer 43C stored in the memory unit 42 by a correction coefficient K1,2. If the measurement value of the timer 43C exceeds the reference time, the process proceeds to step S22, and if the measurement value of the timer 43C is equal to or less than the reference time, the process proceeds to step S23. Note that if the farm field in which the reaping operation is being performed is large and it is necessary to perform the grain discharge operation several times, it is preferable to compare the total of the measurement values ​​of the timer 43C for several times with the total of the measurement values ​​of the previous timer 43C for several times.

[0072] In step S22, the processing unit 41 displays a warning on the monitor 11, for example, to increase the speed of the continuously variable transmission 30 to increase the traveling speed of the traveling device 2 on the movement path 53 toward the transfer vehicle 55, and then proceeds to step S23. This allows the worker to move quickly on the movement path 53.

[0073] In step S23, the processing unit 41 compares the measurement value of the timer 43D with a reference time (the "fourth reference time" in the claims) obtained by multiplying the previous timer 43D value stored in the memory unit 42 by the correction coefficient K1,2. If the measurement value of the timer 43D exceeds the reference time, the process proceeds to step S24, and if the measurement value of the timer 43D is equal to or less than the reference time, the process proceeds to step S25. Note that if the farm field in which the reaping operation is being performed is large and it is necessary to perform the grain discharge operation several times, it is preferable to compare the total of the measurement values ​​of the timer 43D for several times with the total of the measurement values ​​of the previous timer 43D for several times.

[0074] In step S24, the processing unit 41 displays a warning on the monitor 11, such as, for example, to increase the speed of the continuously variable transmission 30 to increase the traveling speed of the traveling device 2 and the reaping speed of the reaping device 3, and to increase the output rotation of the engine E to increase the threshing speed of the threshing device 4, and then proceeds to step S25. This allows the operator to operate the main speed change lever 21 to a forward tilt position to increase the traveling speed of the traveling device 2 and the reaping speed of the reaping device 3, thereby shortening the reaping work time.

[0075] In step S25, the processing unit 41 compares the measurement value of the timer 43E with the reference time (the "fifth reference time" in the claims) of the previous timer 43E stored in the memory unit 42. If the measurement value of the timer 43E exceeds the reference time, the process proceeds to step S26, and if the measurement value of the timer 43E is equal to or less than the reference time, the process returns to step S1. Note that if the farm field in which the reaping operation is being performed is large and it is necessary to perform the grain discharge operation several times, it is preferable to compare the sum of the measurement values ​​of the timer 43D for several times with the sum of the measurement values ​​of the previous timer 43D for several times.

[0076] In step S26, the processing unit 41 displays a warning on the monitor 11, for example, to increase the output rotation of the engine E to increase the discharge speed of the discharge auger 8, and then returns to step S1. This allows the operator to increase the output rotation of the engine E via the engine control switch 15 or the like, thereby increasing the output rotation of the conveying spiral of the discharge auger 8 and shortening the discharge time. [Explanation of symbols]

[0077] 1 Aircraft frame 2 Running gear 3 Reaping device 4. Threshing Equipment 5. Control Unit 7. Glentank 8. Discharge Auger 11 Monitor 15 Engine control switch 21 Main gear shift lever (gear shift lever) 26 Mowing lever 27 Eject lever 30 Continuously variable transmission 32 Harvesting clutch 33 Threshing Clutch 34 Discharge clutch 40 Controller E-Engine K1 correction coefficient (first correction coefficient) K2 correction coefficient (second correction coefficient)

Claims

1. A combine harvester comprising: a traveling device (2) provided under a machine frame (1) on which an engine (E) is mounted; a reaping device (3) for reaping stalks provided in front of the machine frame (1); a threshing device (4) for threshing and sorting grains from the stalks provided on the rear left side of the reaping device (3); a control section (5) for an operator to ride on provided on the rear right side of the reaping device (3); a grain tank (7) for storing grains provided behind the control section (5); and a discharge auger (8) for discharging grains to the outside provided behind the grain tank (7), The controller (40) of the steering unit (5) compares a total time from the start of the traveling device (2) to the stop of the drive of the discharge auger (8) with a first reference time, which is a previous total time stored in the controller (40), When the total time is longer than a first reference time, a warning is displayed on a monitor (11) of the operating section (5).

2. A combine harvester as described in claim 1, wherein the first reference time is calculated by multiplying the previous total time by a first correction coefficient (K1) based on the lodging state of the stalks and a second correction coefficient (K2) based on the inclination angle of the body frame (1).

3. The controller (40) compares a stop time during which the traveling device (2) is stopped with a second reference time, which is a previous stop time stored in the controller (40), 2. The combine harvester according to claim 1, wherein, when the stop time is longer than a second reference time, the warning display is performed to inform the user that the operation of the engine (E) will be stopped.

4. The controller (40) compares a simple running time during which the traveling device (2) is traveling and the driving of the reaping device (3) and the threshing device (4) is stopped with a third reference time, which is a previous simple running time stored in the controller (40), 2. The combine harvester according to claim 1, wherein, when the simple running time is longer than a third reference time, the warning display is performed to instruct the user to increase the running speed of the traveling device (2).

5. A combine harvester as described in claim 4, wherein the third reference time is calculated by multiplying the previous simple running time by a first correction coefficient (K1) based on the lying state of the stalks and a second correction coefficient (K2) based on the inclination angle of the body frame (1).

6. The controller (40) compares the reaping operation time during which the traveling device (2) is traveling and the reaping device (3) and the threshing device (4) are operating with a fourth reference time, which is a previous reaping operation time stored in the controller (40), A combine harvester as described in claim 1, wherein when the harvesting operation time is longer than a fourth reference time, a warning display is given to increase the traveling speed of the traveling device (2), the harvesting speed of the harvesting device (3), and the threshing speed of the threshing device (4).

7. A combine harvester as described in claim 6, wherein the fourth reference time is calculated by multiplying the previous harvesting work time by a first correction coefficient (K1) based on the fallen state of the stalks and a second correction coefficient (K2) based on the inclination angle of the body frame (1).

8. The controller (40) compares a discharge time during which the traveling device (2) stops traveling and the discharge auger (8) is driven to discharge grains to the outside with a fifth reference time which is a previous discharge time stored in the controller (40), 2. The combine harvester according to claim 1, wherein, when the discharge time is longer than a fifth reference time, the warning display is performed to instruct the discharge speed of the discharge auger (8) to be increased.

9. a continuously variable transmission (30) for increasing or decreasing the output rotation of the engine (E) is provided in a transmission path between the engine (E) and the traveling device (2); A mowing clutch (32) is provided in a transmission path between the continuously variable transmission (30) and the mowing device (3); A threshing clutch (33) is provided in a transmission path between the engine (E) and the threshing device (4). A discharge clutch (34) is provided in a transmission path between the engine (E) and the discharge auger (8); 2. The combine harvester according to claim 1, wherein the control section (5) is provided with an engine control switch (15) for increasing or decreasing the output rotation of the engine (E), a speed change lever (21) for increasing or decreasing the output rotation of the continuously variable transmission (30), a harvesting / threshing lever (26) for connecting and disconnecting the harvesting clutch (32) and the threshing clutch (33), and a discharge lever (27) for connecting and disconnecting the discharge clutch (34).

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