WO2022124173A1

WO2022124173A1 - Combine, determination system, determination method, determination program, and recording medium

Info

Publication number: WO2022124173A1
Application number: PCT/JP2021/044187
Authority: WO
Inventors: 齊藤直; 林壮太郎; 堀高範; 植田圭一; 山岡京介
Original assignee: 株式会社クボタ
Priority date: 2020-12-11
Filing date: 2021-12-02
Publication date: 2022-06-16
Also published as: CN116419669A; KR20230118072A; JP2022093059A

Abstract

This combine comprises: a threshing device for threshing a crop; a grain tank for storing grain that has been obtained by the threshing device; a conveyance device for conveying, from the threshing device to the grain tank, the grain that has been obtained by the threshing device; a flow rate measurement device 81A for measuring the flow rate Fv1 of the grain conveyed by the conveyance device; a yield reception unit 85 for receiving a specific yield value Vd; and a work quantity determination unit 84 for determining, on the basis of the flow rate Fv1, the work quantity required for the yield Vi of the grain that has been obtained by harvesting work to reach the specific yield value Vd.

Description

Combine, calculation system, calculation method, calculation program, and recording medium

The present invention is a combine provided with a transport device for transporting grains obtained by a threshing device from the threshing device to a grain tank, and a flow rate measuring device for measuring the flow rate of grains transported by the transport device. Regarding the calculation system, calculation method, calculation program, and recording medium.

For example, in the combine disclosed in Japanese Patent Application Laid-Open No. 2019-216744 (Patent Document 1), the yield of grains stored in the grain tank (“Glen tank” in Patent Document 1) (Patent Document 1 states “ "Yield") is detected, and the position where the grain tank is full in the field is predicted based on the yield. The yield of grains is, for example, as shown in Japanese Patent Application Laid-Open No. 2020-000107 (Patent Document 2), a load cell for measuring the weight of a grain tank (“grain tank” in Patent Document 2) (Patent Document 2). In 2, it is detected by a "weight measuring instrument").

Japanese Patent Application Laid-Open No. 2019-216744 Japanese Patent Application Laid-Open No. 2020-000107

By the way, in the combine disclosed in Japanese Patent Application Laid-Open No. 2019-216744, the position where the grain tank is full in the field is predicted based on the yield. For example, the grain tank is full. Even before, various operations based on a specific yield (for example, grain discharge operation and maintenance work according to the yield) may be required. Therefore, it is desirable to have a configuration that can calculate the amount of work required to reach a specific yield. In addition, it is important that the yield is detected accurately in order to calculate the amount of work required to reach such a specific yield. However, according to the configuration shown in Japanese Patent Application Laid-Open No. 2020-000107, depending on how the grains are accumulated in the grain tank (for example, when the grains are accumulated in a front-rear direction or a left-right direction), the load cell is used. Since the detected values of may differ, improving the detection accuracy of the yield is an issue.

An object of the present invention is to provide a combine capable of accurately calculating the amount of work required to reach a specific yield according to needs.

In the combine according to the present invention, the threshing device for threshing the crop, the grain tank for storing the grains obtained by the threshing device, and the grains obtained by the threshing device are transferred from the threshing device to the grains. A transfer device for transporting to a tank, a flow rate measuring device for measuring the flow rate of grains transported by the transfer device, a yield receiving unit for receiving a specific yield value, and a harvesting operation obtained based on the flow rate. It is characterized by being provided with a work amount calculation unit for calculating the work amount required for the grain yield to reach the specific yield value.

Since the present invention is provided with a yield receiving unit, for example, an operator or a manager can specify a specific yield according to needs through the yield receiving unit. Therefore, in the present invention, for example, even before the grain tank is full, various operations based on a specific yield (for example, grain discharge operation and maintenance work according to the yield) are required. It is possible to calculate the amount of work until it becomes. In addition, the flow rate of grains transported by the transfer device is measured by the flow rate measuring device, and the amount of work required to reach the specified yield value is calculated based on the flow rate. That is, it is possible to calculate the amount of work without being influenced by how the grains are accumulated in the grain tank (for example, when the grains are accumulated unevenly in the front-rear direction or the left-right direction). As a result, a combine that can accurately calculate the amount of work required to reach a specific yield according to needs is realized.

The above-mentioned technical features of the harvester can also be applied to the calculation system. The calculation system in this case is based on a flow rate measuring device that measures the flow rate of grains transported from the threshing device to the grain tank via the transport device, a yield receiving unit that accepts a specific yield value, and the flow rate. It is characterized by being provided with a work amount calculation unit for calculating the work amount required for the yield of grains obtained by the harvesting work to reach the specific yield value.

The above-mentioned technical features of the harvester can also be applied to the calculation method. In this case, the calculation method is based on a flow rate measuring step for measuring the flow rate of grains transported from the threshing device to the grain tank via the transport device, a yield receiving step for accepting a specific yield value, and the above-mentioned flow rate. It is characterized by comprising a work amount calculation step for calculating the work amount required for the yield of grains obtained by the harvesting work to reach the specific yield value.

The above-mentioned technical features of the harvester can also be applied to the calculation program. Further, a recording medium such as an optical disk, a magnetic disk, or a semiconductor memory in which a calculation program having this technical feature is recorded is also included in the above-mentioned technical feature. The calculation program in this case is based on a flow rate measurement function that measures the flow rate of grains transported from the threshing device to the grain tank via a transfer device, a yield reception function that accepts a specific yield value, and the above-mentioned flow rate. It is characterized in that a computer is made to execute a work amount calculation function for calculating the work amount required for the yield of grains obtained by the harvesting work to reach the specific yield value.

In the present invention, it is preferable that the work amount calculation unit calculates the yield by integrating the flow rate.

According to this configuration, since the yield is calculated by integrating the flow rate, regardless of how the grains are accumulated in the grain tank (for example, when the grains are accumulated unevenly in the front-rear direction or the left-right direction). The yield can be calculated. From this, the accuracy of yield detection is improved as compared with the configuration in which the yield of grains is measured by, for example, measuring the weight of the grain tank with a load cell.

In the present invention, the work amount calculation unit calculates the average yield per unit time based on the flow rate, and the value obtained by subtracting the yield from the specific yield value is divided by the average yield. It is preferable to calculate the working time as the working amount. Further, in the present invention, the work amount calculation unit calculates the average yield per unit mileage based on the flow rate, and the value obtained by subtracting the yield from the specific yield value is the average yield. It is preferable to divide and calculate the work mileage as the work amount.

With this configuration, operators and managers can plan harvesting work in the field based on at least one of the working time calculated as the amount of work and the working mileage.

In the present invention, it is preferable that the working amount is the working amount until the grains corresponding to the specific yield value are stored in the grain tank.

In this configuration, the amount of work is calculated based on the state of storage of grains in the grain tank, so that the operator or manager can perform specific work such as grain discharge work and the specific work. You can plan the harvesting work until you need a lot of work.

In the present invention, the arm portion in which the grain to be conveyed comes into contact with the flow rate measuring device and swings, the sensor portion for detecting the swing angle of the arm portion, and the swing angle detected by the sensor portion. It is preferable that a calculation unit for calculating the flow rate based on the above is provided.

According to this configuration, when the grain comes into contact with the arm part, the arm part swings, and the swing angle of the arm part is detected by the sensor part. When the arm part resonates due to the vibration of the combine, for example, if the sensor part (for example, the load cell) detects the load applied to the arm part, the influence of the resonance on the load detection by the sensor part becomes large. It tends to be. On the other hand, even if the arm part resonates, the arm part does not swing due to the resonance alone. Therefore, if the sensor part detects the swing angle of the arm part, the resonance depends on the sensor part. The effect on the detection of the swing angle is small. For this reason, the flow rate measuring device is less susceptible to the vibration of the combine, for example, as compared with a configuration in which the sensor unit detects the load applied to the arm unit. That is, since the magnitude of the swing angle of the arm portion is not easily affected by the vibration of the combine, the calculation unit can accurately calculate the flow rate of the grain according to the magnitude of the swing angle. As a result, the flow rate measuring device can accurately detect the yield of grains.

It is the whole right side view of the combine. It is the whole plan view of a combine. It is a vertical sectional left side view of a threshing device. It is a front view of a grain tank, a grain frying device, and a threshing device. It is a vertical sectional right side view of the grain raising device which shows the first thing sensor. It is a top view which shows the first thing sensor. It is a vertical cross-sectional view of the aircraft in the front-rear direction view showing the first object sensor. It is a vertical cross-sectional right side view of the grain raising device which shows the state which the first thing sensor detects a grain. It is a vertical cross-sectional right side view of the grain raising device which shows the state which the first thing sensor detects a grain. It is a layout drawing of the 2nd thing sensor and the 2nd thing discharge port. It is a layout drawing of the 2nd thing sensor and the 2nd thing discharge port. It is a layout drawing of the 2nd thing sensor and the 2nd thing discharge port. It is a side view of the second thing sensor. It is a vertical right side view of the grain raising device which shows the state which a bucket is in contact with a hump. It is a vertical right side view of the grain raising device which shows the state which a bucket is in contact with a hump. It is a vertical right side view of the grain raising device which shows the state which a bucket is in contact with a hump. It is a block diagram which shows the functional part which concerns on the calculation of the work amount, and the measurement of the amount of threshing processed matter. It is a figure which shows the detection result of the 1st substance recovery amount and the 2nd substance reduction amount. It is a figure which shows the control state which concerns on threshing control. It is a side view of the side wall of a grain tank which shows the first thing sensor in a head-feeding combine. It is a figure which shows the detection result of the 1st substance recovery amount and the 2nd substance reduction amount. It is a block diagram which shows the functional part which concerns on the calculation of the work amount, and the measurement of the amount of threshing processed matter.

The combine according to the present invention is configured to be able to appropriately store grains selected from threshed crops. Hereinafter, the combine of the present embodiment will be described by taking a normal combine as an example.

FIG. 1 is a right side view of the combine, and FIG. 2 is a plan view of the combine. Here, in order to facilitate understanding, in the present embodiment, unless otherwise specified, "front" (direction of arrow "F" shown in FIG. 1) means front in the front-rear direction (traveling direction) of the aircraft. , "Rear" (direction of arrow "B" shown in FIG. 1) shall mean rearward in the front-rear direction (traveling direction) of the aircraft. Further, "up" (direction of arrow "U" shown in FIG. 1) and "down" (direction of arrow "D" shown in FIG. 1) are positional relationships in the vertical direction (vertical direction) of the aircraft. It shall indicate the relationship at the height above the ground. Further, the left-right direction or the lateral direction is the aircraft crossing direction (aircraft width direction) orthogonal to the aircraft front-rear direction, that is, "left" (direction of the arrow "L" shown in FIG. 2) and "right" (shown in FIG. 2). The direction of the arrow "R") shall mean the left and right directions of the aircraft, respectively.

The combine includes a crawler-type traveling device 3, an aircraft frame 2 supported by the traveling device 3, a cutting section 4 for cutting field crops (various crops such as rice, wheat, soybeans, and rapeseed), and a feeder 11. , A grain removal device 1, a grain tank 12, and a grain discharge device 14 are provided.

The cutting unit 4 includes a scraping reel 5 for scraping crops, a clipper-type cutting device 6 for cutting crops in the field, and an auger 7 for laterally feeding the cut crops to the feeder 11. The crops cut by the cutting unit 4 are transported to the threshing device 1 by the feeder 11 and threshed and sorted by the threshing device 1. The sorted product that has been threshed and sorted by the threshing device 1 is stored in the grain tank 12, and is appropriately discharged to the outside of the machine by the grain discharging device 14.

Behind the cutting section 4, the driving section 9 is provided side by side with the feeder 11, and the driving section 9 is provided in a state of being biased to the right side of the machine body. The driving unit 9 is covered by the cabin 10. An engine room ER is provided below the driving unit 9, and an engine E, a cooling fan, a radiator, and the like, which are not particularly shown, are housed in the engine room ER. The power of the engine E is transmitted to the traveling device 3 and working devices such as the cutting unit 4 and the threshing device 1 by a power transmission mechanism (not shown).

A satellite positioning module 83 is provided in the cabin 10. The satellite positioning module 83 receives a GNSS (Global Navigation Satellite System) signal (including a GPS signal) from an artificial satellite (not shown) and acquires a vehicle position. In addition, in order to complement the satellite navigation by the satellite positioning module 83, an inertial navigation unit incorporating a gyro acceleration sensor and a magnetic orientation sensor is incorporated in the satellite positioning module 83. The inertial navigation unit may be arranged at a different location from the satellite positioning module 83 in the combine harvester.

Next, the configuration of the threshing device 1 will be described with reference to the left side view of the vertical section of the threshing device 1 shown in FIG. The threshing device 1 is provided on the machine frame 2, and includes a threshing unit 41 for threshing crops by a handling cylinder 22, and a sorting unit 42 for rocking and sorting the threshed product. The threshing unit 41 is arranged in the upper region of the threshing device 1, a receiving net 23 is provided below the threshing unit 41, and a sorting unit 42 is provided below the receiving net 23. The sorting unit 42 sorts the threshed product leaked from the receiving net 23 into a sorting product containing grains to be collected and a waste product such as straw.

The threshing section 41 includes a handling chamber 21 surrounded by left and right side walls of the threshing device 1, a top plate 53, and a receiving net 23. The handling chamber 21 is provided with a handling cylinder 22 for threshing crops by rotation and a plurality of dust feeding valves 53a. The handling cylinder 22 rotates around the rotation axis X. The crops transported by the feeder 11 are put into the handling chamber 21 and threshed by the handling cylinder 22. The crops carried by the handling cylinder 22 are transferred backward by the feeding action of the dust feeding valve 53a.

The dust valve 53a has a plate shape and is provided on the inner surface (lower surface) of the top plate 53 at predetermined intervals along the front-rear direction. The dust feed valve 53a is provided in a posture of being inclined with respect to the rotation axis X in a plan view. Therefore, each dust feed valve 53a exerts a force to move the harvested culm that rotates together with the handling cylinder 22 to the rear side in the handling chamber 21. Further, the dust feed valve 53a can adjust the inclination angle with respect to the rotary shaft core X. The speed at which the crop is sent backward in the handling cylinder 22 is determined by the inclination angle of the dust sending valve 53a. The threshing efficiency at which the crop is threshed is also affected by the speed at which the crop is sent through the handling barrel 22. As a result, the processing capacity at which the crop is threshed can be adjusted using various means, but changing the tilt angle of the dust valve 53a can be adjusted as one means. Although not particularly shown, a dust feed valve control mechanism capable of changing and controlling the tilt posture of the dust feed valve 53a is provided, and the tilt angle of the dust feed valve 53a can be automatically changed.

The threshing device 1 includes a first item recovery unit 26, a second item collection unit 27, and a second item reduction device 32. The sorting unit 42 includes a swing sorting device 24 having a sheave case 33 and a wall insert 19.

The wall insert 19 is provided in the lower region of the front region of the sorting unit 42, and generates a sorting wind from the front side to the rear of the swing sorting device 24 along the transport direction of the processed material. The sorting wind has a function of sending out straw and the like having a relatively light specific density toward the rear side of the sheave case 33. Further, in the swing sorting device 24, the sheave case 33 swings due to the swing drive mechanism 43, so that the threshing processed product inside the sheave case 33 is transferred backward and the swing sorting process is performed. For this reason, in the following description, in the swing sorting device 24, the upstream side in the transport direction of the processed material is referred to as a front end or a front side, and the downstream side is referred to as a rear end or a rear side. The wall insert 19 can change the strength (air volume, wind speed) of the sorting wind. When the sorting wind is strong, the threshed product can be easily sent backward and the sorting speed becomes high. On the contrary, when the sorting wind is weakened, the threshed product stays in the sheave case 33 for a long time, and the sorting accuracy is improved. Therefore, the wall insert 19 can adjust the sorting efficiency (sorting accuracy and sorting speed) of the swing sorting device 24 by changing the strength of the sorting wind. Although not shown in particular, a wall insert control mechanism capable of changing and controlling the strength of the sorting wind of the wall insert 19 is provided, and the strength of the wall insert 19 can be automatically changed.

The first half of the sheave case 33 is provided with the first chaff sheave 38, and the second half of the sheave case 33 is provided with the second chaff sheave 39. Although not particularly described because it has a general configuration, the sheave case 33 is provided with a grain pan and a grain sheave 40 in addition to the first chaff sheave 38 and the like. The threshed product leaking from the receiving net 23 falls on the first chaff sheave 38 and the second chaff sheave 39. Most of the threshed product leaks from the receiving net 23 to the first half portion of the sheave case 33 including the first chaff sheave 38, and is roughly sorted and finely sorted by the first half portion of the sheave case 33. Some threshed products may leak from the receiving net 23 to the second chaff sheave 39, or may be transferred from the first chaff sheave 38 to the second chaff sheave 39 without leaking downward, at the second chaff sheave 39. Asava is sorted.

The above-mentioned Glen Sheave 40 is provided below the first Chaf Sheave 38. That is, the swing sorting device 24 includes a grain sheave 40 provided below the first chaff sheave 38. The grain sheave 40 is composed of a porous member such as a punching metal or a reticular formation, and receives and sorts the threshed product leaked from the first chaff sheave 38.

A screw-type first item collection unit 26 is provided below the first half of the sheave case 33, and a screw-type second item collection unit 27 is provided below the second half of the sheave case 33. The first product that has been sorted and leaked by the first half of the sheave case 33, that is, the first product among the sorted products sorted by the sorting unit 42, is collected by the first product collection unit 26. It is transported toward the side of the grain tank 12 (right side in the left-right direction of the machine body). The second product that has been sorted and leaked by the latter half of the sheave case 33 (second chaff sheave 39) (generally, the sorting treatment accuracy is low and the ratio of cut straw etc. is high), that is, among the sorted products. The second product is collected by the second product collection unit 27. The second product corresponds to the threshed product that was not selected as the threshed product among the threshed products. The second product collected by the second product collection unit 27 is reduced to the front portion of the sorting unit 42 by the second product reducing device 32, and is re-sorted by the sheave case 33.

The first chaf sheave 38 is provided with a plurality of plate-shaped chaflip provided side by side along the transfer (transport) direction (front-back direction) of the threshed product. Each chaflip is arranged in an inclined posture toward the rear end side diagonally upward. The tilt angle of the chaflip is variable, and the steeper the tilt angle, the wider the distance between adjacent chaflips, and the easier it is for the threshed product to leak. That is, the leakage opening degree can be changed by changing the postures of the plurality of chaflip. Therefore, the sorting efficiency (sorting accuracy and sorting speed) of the swing sorting device 24 can be adjusted by adjusting the tilt angle of the chaflip. A lip control mechanism capable of changing and controlling the tilting posture of the chaflip is provided, and the tilting angle of the chaflip can be automatically changed.

The second chaf sheave 39 has the same configuration as the first chaf sheave 38. An angle control mechanism capable of changing and controlling the tilting posture of the chaflip of the second chaf sheave 39 is also provided, and the tilting angle of the chaflip can be automatically changed.

FIG. 4 is a front view of the grain tank 12, the grain raising device 29, and the threshing device 1, and FIG. 5 is a vertical sectional right side view of the grain raising device 29. As shown in FIGS. 4 and 5, a grain raising device 29 is provided for transporting the sorted processed product collected by the first product collecting unit 26 to the grain tank 12. The grain frying device 29 is arranged between the threshing device 1 and the grain tank 12, and is erected in a posture along the vertical direction. The grain frying device 29 is configured as a bucket conveyor type. The sorting processed product transported by the grain raising device 29 is delivered to the lateral feed transport device 30 at the upper end portion of the grain raising device 29. The lateral feed transport device 30 is connected to the grain frying device 29 in a state of being adjacent to each other. The lateral feed transport device 30 is configured as a screw conveyor type, and is thrust into the inside of the grain tank 12 from the wall portion on the left side of the front portion of the grain tank 12. The lateral feed transport device 30 has a screw portion 30S that rotates around the machine body lateral axis Y1. A grain release device 30A is provided at the end of the lateral feed transfer device 30 on the inner side of the tank. The grain releasing device 30A includes a plate-shaped releasing rotating body 30B, and rotates integrally with the screw portion 30S. The sorted product (grain) is laterally fed by the lateral feed transport device 30, and finally thrown into the grain tank 12 by the grain release device 30A. That is, the horizontal feed transport device 30 receives the grains transported by the grain frying device 29, feeds them laterally, and puts them into the grain tank 12. The grain frying device 29 and the lateral feed transport device 30 are the "transport devices" of the present invention.

In the grain raising device 29, as shown in FIGS. 4 and 5, a plurality of buckets 31 are attached to the outer peripheral side of the endless rotating chain 29C wound over the drive sprocket 29A and the driven sprocket 29B at regular intervals. There is. That is, the grain raising device 29 has a plurality of buckets 31 for lifting the grains obtained by the threshing device 1. The grain raising device 29 includes a feeding path 29D in which the bucket 31 containing the sorting processed product rises, and a return path 29E in which the bucket 31 descends after discharging the sorted processed material into the lateral feed transport device 30. The feed path 29D and the return path 29E are arranged side by side along the left side wall 12b of the grain tank 12 so that the feed path 29D is on the rear side.

[Structure of the first sensor]
The first thing sensor 60 is provided between the grain frying device 29 and the lateral feed transport device 30. The first object sensor 60 is the "flow rate measuring device" of the present invention. At the upper end of the grain frying device 29, the first item sensor 60 is arranged so as to measure the amount of the sorting processed material delivered from the bucket 31 to the lateral feed transport device 30. The first product sensor 60 measures the flow rate Fv1 (see FIG. 17) of the grains transported by the grain raising device 29 and the lateral feed transport device 30. The arm unit 63, the first sensor unit 64 (“sensor unit” of the present invention), and the first flow rate calculation unit 81A (see FIG. 17), in which the grain to be conveyed comes into contact with the first sensor 60 and swings. , The "calculation unit" of the present invention). The first sensor unit 64 detects the swing angle θ1 of the arm unit 63 (see FIGS. 8, 9, and 17). The first flow rate calculation unit 81A calculates the flow rate Fv1 based on the detected swing angle θ1.

As shown in FIG. 5, the bucket 31 moves upward along the feeding path 29D, and the grains are loaded on the bucket 31 and transported from the first item collecting unit 26 to the upper end portion of the grain raising device 29. A discharge port 29h is formed at the upper end of the grain frying device 29. The discharge port 29h is provided on the side portion of the upper end portion of the grain raising device 29 where the return path 29E is located, which is opposite to the feed path 29D. When the bucket 31 moves from the feed path 29D to the return path 29E at the upper end of the grain frying device 29, the bucket 31 reverses its posture from the ascending posture to the descending posture. At this time, the bucket 31 swivels 180 degrees (or approximately 180 degrees) around the axis of rotation of the driven sprocket 29B, and centrifugal force acts on the grains loaded on the bucket 31. Then, at the discharge port 29h, the bucket 31 throws grains during the turning operation. In other words, the grain is thrown at the discharge port 29h by the bucket 31 that reverses its posture from the ascending posture to the descending posture at the upper end portion of the grain raising device 29. The upper end of the grain frying device 29, that is, the upper ends of the feed path 29D and the return path 29E, respectively, is covered with the top plate 61. Further, the lateral feed transport device 30 is connected to the discharge port 29h. That is, a delivery space between the grain raising device 29 and the horizontal feed transport device 30 is formed on the outside of the discharge port 29h and above the lateral feed transport device 30. When the grains are thrown from the bucket 31, they are thrown into the lateral feed transport device 30 while drawing a parabola in the space below the top plate 61.

As shown in FIGS. 5, 6 and 7, a bulging portion 65 is provided on the top plate 61 of the grain raising device 29. The bulging portion 65 bulges upward from the surface portion of the top plate 61, and an internal space 62 is formed inside the bulging portion 65. The first object sensor 60 is supported by the bulging portion 65. The first sensor 60 measures the flow rate Fv1 of the grains thrown from the bucket 31. The first sensor 60 is provided with an arm unit 63, a first sensor unit 64, and a rotation shaft 66.

The rotating shaft 66 is supported by the bulging portion 65. The arm portion 63 is attached to the rotating shaft 66 so that it can rotate integrally with the rotating shaft 66. The arm portion 63 extends downward from the rotation shaft 66. The arm portion 63 is swingably supported around the swing shaft core Y2 of the rotary shaft 66.

The arm portion 63 is located on the throwing path of the grains thrown from the bucket 31 (throwing path area S1), and swings when the grains thrown by the bucket 31 come into contact with each other. The arm portion 63 is provided in a hanging posture facing the discharge port 29h in a state where the grains are not in contact with each other, and is configured to be shorter than the vertical length of the discharge port 29h. The bulging portion 65 is formed so that the portion of the bulging portion 65 located directly above the rotation shaft 66 is at the highest position. Further, an inclined surface 65a is formed on the front portion of the machine body of the bulging portion 65, and the inclined surface 65a approaches the top plate 61 toward the front side of the machine body. In order to show the arm portion 63 in an easy-to-understand manner, the inclined surface 65a in FIG. 6 shows only the front lower portion.

A flange portion 65b is formed on the left side of the bulging portion 65, and a stay 67 is connected to the flange portion 65b by a bolt Bo. In a plan view, the central region of the stay 67 in the longitudinal direction protrudes from both ends of the stay 67 in the longitudinal direction toward the side away from the bulging portion 65. The first sensor unit 64 is supported in the central region of the stay 67 in the longitudinal direction. The first sensor unit 64 is located outside the grain frying device 29 with the flange portion 65b of the bulging portion 65 interposed therebetween. That is, the first sensor unit 64 is provided in a state of being separated from the throwing path region S1 at a position outside the throwing path region S1 of the grains thrown from the bucket 31.

A through hole is formed in the flange portion 65b of the bulging portion 65, and the rotating shaft 66 penetrates the through hole. A link arm 66A is provided at an end of the rotating shaft 66 on the side opposite to the side where the arm portion 63 is located with the flange portion 65b of the bulging portion 65 interposed therebetween, and the link arm 66A is provided on the radial outer side of the rotating shaft 66. Extend to. Further, a through hole is formed in the central region of the stay 67 in the longitudinal direction, and the rotation shaft portion 64A of the first sensor portion 64 penetrates the through hole. The link arm 64B is connected to the tip end portion of the rotation shaft portion 64A of the first sensor portion 64, and the link arm 64B extends outward in the radial direction. The link arm 66A and the link arm 64B are pin-connected. As a result, the arm unit 63 that rotates integrally with the rotation shaft 66 and the first sensor unit 64 are interlocked and connected via the link arm 66A, the link arm 64B, and the pin 99. With this configuration, the first sensor unit 64 is less likely to receive an impact from the arm unit 63, and the first sensor unit 64 is less likely to fail, as compared with the configuration in which the first sensor unit 64 and the rotating shaft 66 are directly connected. .. The first sensor unit 64 detects the swing angle θ1 (see FIG. 17) of the arm unit 63. Further, a first flow rate calculation unit 81A for calculating the flow rate Fv1 based on the swing angle θ1 is provided (see FIG. 17). For example, a map or an equation showing the relationship between the swing angle θ1 and the flow rate Fv1 is stored in advance in the first flow rate calculation unit 81A. Maps and equations showing the relationship between the swing angle θ1 and the flow rate Fv1 are obtained in advance by experiments and calculations (experiments or calculations). Then, the first flow rate calculation unit 81A calculates the flow rate Fv1 based on the map or the formula.

A long hole is formed in one of the link arm 66A and the link arm 64B, and a round hole is formed in the other of the link arm 66A and the link arm 64B. The elongated hole extends along one of the longitudinal directions. Then, the link arm 66A and the link arm 64B are pin-connected by inserting one pin 99 into the one long hole and the other round hole. Since a long hole is formed in one of the link arm 66A and the link arm 64B, an error in centering in the pin connection between the link arm 66A and the link arm 64B is allowed. With this configuration, it is not necessary to precisely align the rotating shaft portion of the first sensor unit 64 and the rotating shaft 66 on the same axis, and the assembly of the first sensor unit 64 in the first sensor 60 becomes easy.

Insertion holes for inserting bolts Bo are formed at the left and right ends of the stay 67, and the diameter of the insertion holes is larger than the nominal diameter of the bolt Bo (for example, about 3 mm larger than the nominal diameter) and the bolt Bo. It is formed so as to be smaller than the diameter of the head of the head. This configuration facilitates the alignment of the rotating shaft portion of the first sensor portion 64 with respect to the rotating shaft 66. That is, the assembly of the first sensor unit 64 in the first object sensor 60 becomes easy.

The stay 67 is provided with a spring receiving portion 67a. A coil spring 68 is stretched over the free end portion of the link arm 66A and the spring receiving portion 67a. The arm portion 63 is oscillated and urged to approach the grain raising device 29 by the pulling force of the coil spring 68. The region of the arm portion 63 on the swing base end side abuts on the locking portion 69, and the position is held in a downward standby posture against the spring urging force of the coil spring 68. If the arm portion 63 is in contact with the locking portion 69 and the urging force of the coil spring 68 acts on the arm portion 63, vibration due to unevenness in the field, vibration from the engine, or the like is transmitted to the arm portion 63. However, the arm portion 63 is held in a downward standby posture without being affected by vibration.

With the above configuration, the arm portion 63 is configured to be swingable within the range of the position of the downward posture and the front and lower end portions of the inclined surface 65a. In this case, the swing angle θ1 of the arm portion 63 is set to, for example, 40 degrees.

In the lateral feed transport device 30, a receiving portion 30d is formed at the starting end portion in the transport direction of a tubular case that covers the screw portion 30S, and the receiving portion 30d receives grains thrown from the bucket 31. The receiving portion 30d extends from the screw portion 30S of the lateral feed transporting device 30 to the side where the grain raising device 29 is located. The receiving portion 30d is inclined so as to be located on the lower side toward the side where the screw portion 30S is located.

As shown in FIG. 5, the region where the extension tip portion of the receiving portion 30d is located is indicated by the virtual line L1 in the side view of the machine body, and the arm portion 63 is the screw portion of the lateral feed transport device 30 rather than the virtual line L1. It is arranged on the side where 30S is located. Further, in the side view of the machine body, the portion of the screw portion 30S where the machine body lateral axis Y1 is located is indicated by the virtual line L2, and the arm portion 63 is lifted above the virtual line L2 in a state where the grains extend downward without colliding with each other. It is arranged on the side where the grain device 29 is located. That is, the arm portion 63 is arranged in the region between the virtual line L1 and the virtual line L2 in a state where the grains extend downward without colliding with each other. In other words, the arm portion 63 is located at a position higher than the screw portion 30S in the transfer space between the grain raising device 29 and the lateral feed transport device 30, and in the direction in which the grain frying device 29 and the lateral feed transport device 30 are adjacent to each other. , It is configured to swing around a swinging shaft core Y2 provided at a position between the discharge port 29h and the machine body lateral shaft core Y1.

When the grain collides with the arm portion 63, the grain falls downward due to the repulsive force from the arm portion 63. From this, the grains that collide with the arm portion 63 are more likely to fall into the return path 29E than the grains that do not collide with the arm portion 63. In the present embodiment, the arm portion 63 is arranged on the side where the screw portion 30S of the lateral feed transport device 30 is located with respect to the extension tip portion of the receiving portion 30d. Therefore, most of the grains that collide with the arm portion 63 and are bounced off are received by the receiving portion 30d and guided into the grain tank 12 by the lateral feed transport device 30. As a result, the grains colliding with the arm portion 63 are less likely to fall into the return path 29E.

The arm portion 63 is formed so that the width of the arm portion 63 is less than half the width of the bucket 31. Since the grains are thrown substantially uniformly from the bucket 31 in the width direction of the bucket 31, more than half of the grains thrown from the bucket 31 are received by the receiving portion 30d without colliding with the arm portion 63. As a result, the possibility that the grains are repelled by the arm portion 63 and fall into the return path 29E is reduced. That is, the width of the arm portion 63 is set to be narrower than the width of the opening of the bucket 31.

Further, the arm portion 63 is arranged on the side where the grain raising device 29 is located rather than the virtual line L2 in a state where the grains extend downward without colliding with each other. Therefore, the grain collides strongly with the arm portion 63 as compared with the configuration in which the arm portion 63 is arranged on the side opposite to the side where the grain raising device 29 is located with respect to the virtual line L2. From this, even if the amount of grains thrown from the bucket 31 is small, the first product sensor 60 can accurately measure the flow rate Fv1 of the grains.

As shown in FIGS. 8 and 9, when the grains are thrown from the bucket 31, the grains fall into the side where the receiving portion 30d is located while forming a continuous strip shape up and down and drawing a parabola. The arm portion 63 is located on the throwing path of the grains (throwing path region S1), and the grains located on the upper side of the vertically continuous band-shaped grains come into contact with the arm portion 63. When the grain thrown from the bucket 31 comes into contact with the arm portion 63, the arm portion 63 swings in a direction away from the bucket 31 where the grain is thrown against the urging force of the coil spring 68 due to the pressing force thereof. The grains that collide with the arm portion 63 fall downward due to the repulsive force from the arm portion 63, are received by the receiving portion 30d, and are guided to the side where the screw portion 30S is located. The swinging base end portion of the arm portion 63 is off the upper side of the throwing path region S1 of the grain. That is, the arm portion 63 is configured to swing around the swing shaft core Y2 provided at a position deviating from the throwing path region S1 of the grains thrown from the bucket 31.

FIG. 5 shows the virtual line L3. The virtual line L3 extends downward from the swing axis Y2 and intersects in a direction orthogonal to the upper end line of the throwing path region S1. The free end portion of the arm portion 63 is located on the side where the virtual line L2 is located rather than the virtual line L3 in a state where the grains extend downward without colliding with each other. From this, the more the arm portion 63 swings toward the side where the virtual line L2 is located, the more portion of the arm portion 63 that protrudes outside the range of the throwing path region S1. That is, the arm portion 63 is configured so that the larger the swing angle θ1, the greater the proportion of the arm portion 63 protruding outside the throwing path region S1.

As shown in FIG. 8, when the grain is thrown from the bucket 31 and comes into contact with the arm portion 63, the arm portion 63 swings. Then, when most of the grains thrown from the bucket 31 have passed through the region where the arm portion 63 is located, the arm portion 63 is returned to the downward posture side by the urging force of the coil spring 68. In the present embodiment, 20 to 30 buckets 31 pass through the upper end of the grain raising device 29 per second, and grains are thrown from the bucket 31 at intervals of 1/20 to 1/30 seconds at the discharge port 29h. To. For this reason, the arm portion 63 swings (vibrates) in a cycle of 1/20 second to 1/30 second.

In the example shown in FIG. 9, the amount of grains thrown from the bucket 31 is larger than that in the example shown in FIG. When the amount of grains thrown from the bucket 31 increases, the thrown grains become lumpy at the discharge port 29h and increase in thickness. The amount of grains thrown from the bucket 31 increases, and the swing angle θ1 of the arm portion 63 increases. Further, when the number of grains thrown from the bucket 31 increases, the grains become lumpy at the discharge port 29h and increase in thickness, so that the time required for the lumpy grains to pass through the throwing path region S1 becomes long. Therefore, there is almost no time for the arm portion 63 to be returned to the downward posture side, and the swing angle θ1 remains largely maintained.

When the arm portion 63 and the front lower end portion of the inclined surface 65a come into contact with each other, the swing of the arm portion 63 stops. In other words, when the arm portion 63 and the front lower end portion of the inclined surface 65a come into contact with each other, the swing of the arm portion 63 is maximized. In this state, substantially the entire arm portion 63 other than the free end portion is housed in the internal space 62. At this time, since the grains thrown in a parabolic shape along the inner peripheral side surface portion of the top plate 61 touch only the free end portion of the arm portion 63, most of the grains do not touch the arm portion 63 and are lateral to each other. It is guided to the receiving portion 30d of the feed transport device 30.

[Structure of second sensor]
As described above, the second product is reduced to the upstream side, which is the front portion of the swing sorting device 24, by the second product reducing device 32. Specifically, the second product discharge port 32A of the second product reduction device 32 is located at a position outside the radial direction in the arc-shaped receiving net 23 (the second material is on the side of the receiving net 23, and the second product is the receiving net 23). It is provided at a position that does not pass through), and the second item is discharged at this position. The threshing device 1 is provided with a second product sensor 70 for measuring the flow rate Fv2 (second product reduction amount, see FIG. 17) of the second product thus reduced. 10 to 13 show an arrangement form of such a second product discharge port 32A.

In the present embodiment, as shown in FIG. 10, the second product discharge port 32A is provided toward the receiving net 23 side. As shown in FIGS. 11 and 12, in the vicinity of the second product discharge port 32A, a rotary blade 32B that rotates together with the screw constituting the second product reduction device 32 is provided and is conveyed by the second product reduction device 32. The second product is discharged radially outward from the second product discharge port 32A by the rotary blade 32B through an insertion hole formed in the side wall 50 of the threshing portion 41, and is discharged as shown by the broken line arrow in FIG. To.

The second product discharge port 32A is provided with a guide unit 32C that guides the released second product toward the upper side in the processed material transfer direction of the rocking sorting device 24. The guide portion 32C is configured to exhibit a part of a cylinder having an inner peripheral surface facing the second object discharge port 32A. In other words, the guide portion 32C has a shape in which the strip is bent into an arc shape. The inner peripheral surface of the guide portion 32C regulates the discharge direction of the second object discharged by the rotary blade 32B.

As shown in FIGS. 11 and 12, the second sensor 70 is supported by the inner side portion of the side wall 50 in the threshing section 41. The second product sensor 70 is configured to measure the flow rate Fv2 of the second product that is reduced in contact with the second product emitted by the rotary blade 32B in the second product reduction device 32. The second object sensor 70 is located on the emission extension of the second object emitted by the second object reduction device 32 and swings by the contact of the emitted second object with the swing arm 72 and the swing arm 72. A second sensor unit 73 that measures the flow rate Fv2 of the second object based on the swing angle θ2 of the arm 72 (see FIG. 17), and a support frame 74 that supports the second sensor unit 73 and the swing arm 72. A cover body 75 that covers the upper part of the number sensor 70 is provided.

The second sensor unit 73 has a potentiometer built in the case and is fastened and fixed to the inner side of the support frame 74 with bolts. The second sensor unit 73 is provided with the rotation shaft 76 protruding outward (side of the side wall 50) through the support frame 74, and the swing arm 72 is attached to the rotation shaft 76 so as to be integrally rotatable. .. The swing arm 72 extends downward from the rotation shaft 76, and is provided in a state of being located in a guide path in which the second object is guided by the guide portion 32C. The swing arm 72 is swingably supported around the axis of the rotating shaft 76.

The cover body 75 is configured to cover above each of the swing arm 72, the second sensor portion 73, and the support frame 74. The cover body 75 can prevent fine dust from the threshed material leaking through the receiving net 23 from falling on the swing arm 72 and the second sensor unit 73 and hindering the measurement operation.

As shown in FIG. 13, the swing arm 72 has an extending portion extending above the rotating shaft 76, and a coil spring 78 is stretched over the extending portion and the spring receiving portion 77. The swing arm 72 is swing-forced so as to approach the second discharge port 32A by the pulling force of the coil spring 78. The upper end of the swing arm 72 abuts on the locking portion 79, and the position of the swing arm 72 is held in a downward standby posture against the force of the spring.

When the second object discharged by the rotary blade 32B through the second object discharge port 32A comes into contact with the swing arm 72, the swing arm 72 resists the urging force of the coil spring 78 due to the pressing force of the second object discharge port 32A. Swings in the direction away from. The swing angle θ2 at this time is measured by the second sensor unit 73, and the second flow rate calculation unit 81B (see FIG. 17) calculates the flow rate Fv2 of the second product based on the measurement result of the second sensor unit 73. .. Specifically, a map or formula showing the relationship between the swing angle θ2 and the flow rate Fv2 of the second product is stored in the second flow rate calculation unit 81B, and the flow rate Fv2 of the second product is stored based on the map or formula. It is preferable to calculate.

[Composition of hump in contact with bucket]
The details of the hump 30e shown in FIG. 5 will be described with reference to FIGS. 14, 15 and 16. As described above, at the discharge port 29h, the bucket 31 discharges grains while rotating 180 degrees (or approximately 180 degrees) around the axis of rotation of the driven sprocket 29B. However, for example, there is a possibility that grains may stick to the inside of the bucket 31. The grains stuck to the inside of the bucket 31 may not be released from the bucket 31 only by the swirling motion of the bucket 31. For this reason, if grains stick to the inside of the bucket 31, there is a risk that the transport efficiency of the grain frying device 29 will decrease, the yield of grains will be lost, and the like. In order to reduce such inconvenience, a rubber hump 30e is bolted to the protruding tip of the receiving portion 30d. The hump 30e is positioned so as to be in contact with the bucket 31. The impact of contact between the hump 30e and the bucket 31 causes the grains left in the bucket 31 to be ejected and guided to the receiving portion 30d. Then, when the bucket 31 moves downward, the hump 30e elastically deforms downward, and the bucket 31 swings upward. When the bucket 31 moves further downward on the return path 29E, the hump 30e and the bucket 31 are separated from each other. At this time, the elastic energy of the hump 30e is released, and the hump 30e vigorously returns to its original shape. Further, when the bucket 31 is separated from the hump 30e, the impact caused by the elastic energy of the hump 30e is transmitted to the bucket 31, and the grains left in the bucket 31 are ejected and fall downward. The grains that have fallen downward are returned to the first item collection unit 26 along the return path 29E. With this configuration, the risk of grains sticking to the inside of the bucket 31 is reduced.

[Calculation of workload]
The calculation of the work amount will be described with reference to FIG. The first flow rate calculation unit 81A calculates the flow rate Fv1 of the grains flowing through the grain raising device 29 and the lateral feed transport device 30 based on the swing angle θ1 of the arm unit 63 measured by the first sensor unit 64. The correlation between the swing angle θ1 and the grain flow rate Fv1 can be obtained, for example, by experimental data or a learning algorithm. The data of the correlation between the experimental data and the swing angle θ1 obtained by the learning algorithm and the grain flow rate Fv1 are stored in a storage device (not shown) or the like. In the present embodiment, the first flow rate calculation unit 81A can calculate the flow rate Fv1 of the grains in a sampling cycle of, for example, 1/20 second to 1/30 second. From this, the first flow rate calculation unit 81A can calculate the flow rate Fv1 of the grains flowing through the grain raising device 29 and the lateral feed transport device 30 in real time (or substantially real time).

The second flow rate calculation unit 81B calculates the flow rate Fv2 of the second product discharged from the second product discharge port 32A based on the swing angle θ2 of the swing arm 72 measured by the second sensor unit 73. The correlation between the swing angle θ2 and the flow rate Fv2 of the second object can be obtained, for example, by experimental data or a learning algorithm. The data of the correlation between the experimental data and the swing angle θ2 obtained by the learning algorithm and the flow rate Fv2 of the second object are stored in a storage device (not shown) or the like. Similar to the first flow rate calculation unit 81A, the second flow rate calculation unit 81B can calculate the flow rate Fv2 of the second product discharged from the second product discharge port 32A in real time (or substantially real time).

The correction unit 80 corrects the grain flow rate Fv1 calculated by the first flow rate calculation unit 81A with the second flow rate Fv2 calculated by the second flow rate calculation unit 81B. FIG. 18 is an example of the detection amount regarding the flow rate Fv1 of the grain and the flow rate Fv2 of the second product in the present embodiment. Specifically, the correction unit 80 corrects by adding the second flow rate Fv2 to the grain flow rate Fv1 from the start of the harvesting work in the work target area until the grain flow rate Fv1 reaches a predetermined amount. do. The work target area is an area where the combine harvests crops in the field. As shown in FIG. 18, from the start of crop harvesting until the grain flow rate Fv1 reaches a predetermined amount (predetermined value), that is, from the start of cutting to t1 in FIG. 18, the grain flow rate Fv1 is It gradually increases, and the flow rate Fv2 of the second product increases sharply (steeply) and then gradually decreases. Therefore, the correction unit 80 corrects the detection result of the first sensor 60 by adding the second flow rate Fv2 to the flow rate Fv1 of the grain detected by the first sensor 60 from the start of cutting to t1.

On the other hand, after cutting through the work target area, the correction unit 80 corrects by subtracting the flow rate Fv2 of the second product from the flow rate Fv1 of the grains. After cutting through the work target area, it means after the combine harvester 4 runs through the area where the crop is cut in the field. In such a state, as shown in FIG. 18, after t2 after a predetermined time has passed from cutting, the flow rate Fv1 of the grain increases sharply (suddenly) and then gradually decreases. The flow rate Fv2 of the product gradually decreases. Therefore, the correction unit 80 subtracts the flow rate Fv2 of the second grain from the flow rate Fv1 of the grain detected by the first grain sensor 60 after t2 after a predetermined time has elapsed from the cutting, and the correction unit 80 of the first grain sensor 60. Correct the detection result. The flow rate Fv1 of the grain corrected by the correction unit 80 is sent to the work amount calculation unit 84.

The yield reception unit 85 receives a specific yield value Vd. As a specific yield value Vd, a yield value corresponding to a known capacity of the grain tank 12, a yield value corresponding to the capacity (or remaining amount) that can be carried by a carrier, and a dryer of a drying facility can be dried. An example is a yield value corresponding to the capacity. The specific yield value Vd may be configured to read out the capacity of the grain tank 12 stored in advance in a storage device (not shown) or the like, or may be configured by the operator on the operation panel of the operation unit 9. May be there. Further, the specific yield value Vd may be configured to receive data from the outside through the wireless communication network. The specific yield value Vd received by the yield reception unit 85 is sent to the work amount calculation unit 84.

The aircraft position calculation unit 88 calculates the position coordinates of the aircraft over time based on the positioning data output by the satellite positioning module 83. That is, the aircraft position calculation unit 88 calculates the aircraft position using satellite positioning. The calculated position coordinates of the machine over time are sent to the work amount calculation unit 84.

The work amount calculation unit 84 calculates the total amount of grains stored in the grain tank 12 by integrating the flow rate Fv1 of the grains calculated by the first flow rate calculation unit 81A and corrected by the correction unit 80. That is, the yield Vi is calculated in real time. Since the grain flow rate Fv1 is sent one after another from the first flow rate calculation unit 81A, for example, every 1/20 second to 1/30 second, the work amount calculation unit 84 is a unit based on the grain flow rate Fv1. The average yield Vt per hour can be calculated.

Further, since the work amount calculation unit 84 receives the temporal position coordinates of the aircraft calculated by the aircraft position calculation unit 88, the mileage and speed can be calculated by calculating the difference in the temporal position coordinates of the aircraft. Is. From this, the work amount calculation unit 84 can calculate the average yield Vr per unit mileage based on the flow rate Fv1 of the grains.

Further, the work amount calculation unit 84 calculates various work amounts based on the specific yield value Vd, the grain flow rate Fv1, and the position coordinates of the machine body calculated by the machine body position calculation unit 88. It is configured. In the present embodiment, the various working amounts are the working amounts until the grains corresponding to the specific yield value Vd are stored in the grain tank 12. For example, if the specific yield value Vd is the capacity of the grain tank 12, the work amount calculation unit 84 calculates the work amount until the grain tank 12 is full. Further, for example, if the specific yield value Vd is the transportable capacity (or remaining amount) of the carrier, the work amount calculation unit 84 determines the work amount corresponding to the transportable capacity (or remaining amount) of the carrier. calculate.

As a specific example, the work amount calculation unit 84 calculates the remaining amount value Vre as the work amount by the following formula.
Vre = Vd-Vi
The remaining amount value Vre is a value obtained by subtracting the yield Vi from the specific yield value Vd. Further, the work amount calculation unit 84 calculates the work time Tw as the work amount by the following formula.
Tw = Vre / Vt
The working time Tw is a value obtained by dividing the remaining value Vre, which is obtained by subtracting the yield Vi from the specific yield value Vd, by the average yield Vt per unit time. In addition, the work amount calculation unit 84 calculates the work mileage Dw as the work amount by the following formula.
Dw = Vre / Vr
The working mileage Dw is a value obtained by dividing the remaining value Vre, which is obtained by subtracting the yield Vi from the specific yield value Vd, by the average yield Vr per unit mileage. In this way, the work amount calculation unit 84 calculates the work amount required for the yield Vi of the grains obtained by the harvesting work to reach a specific yield value Vd based on the flow rate Fv1 of the grains.

The work amount calculated by the work amount calculation unit 84 (for example, remaining amount value Vre, work time Tw, work mileage Dw, etc.) is notified to the operator or the like by the notification unit 87. When the notification unit 87 is, for example, a liquid crystal monitor provided in the operation unit 9, the calculation results of the first flow rate calculation unit 81A and the work amount calculation unit 84 are displayed on the liquid crystal monitor. The notification unit 87 may be an LED lamp, a buzzer, voice guidance, or the like.

When the screw conveyor 14A of the grain discharge device 14 rotates, the grains stored in the grain tank 12 are discharged to the outside of the machine. The discharge amount calculation unit 86 calculates the amount of grains discharged from the grain tank 12 based on the rotation speed Rv of the screw conveyor 14A of the grain discharge device 14. In the present embodiment, the rotation speed Rv of the screw conveyor 14A is detected by the rotation speed detection unit 14B. The amount of grains discharged by the grain discharge device 14 per unit time is proportional (or substantially proportional) to the rotation speed Rv of the screw conveyor 14A. Therefore, by multiplying the rotation speed Rv of the screw conveyor 14A by time, the amount of grains discharged is calculated in real time. The yield Vi of the grains stored in the grain tank 12 before the grains are discharged to the outside of the machine is calculated by the work amount calculation unit 84. Therefore, the discharge amount calculation unit 86 calculates the remaining amount of grains left inside the grain tank 12 in real time by subtracting the integrated discharge amount from the yield Vi during the discharge of the grains. Is also good. The calculation result of the emission amount calculation unit 86 is notified to the operator and the like by the notification unit 87. When the notification unit 87 is a liquid crystal monitor, the calculation result of the emission amount calculation unit 86 is displayed on the liquid crystal monitor.

The grains stored in the grain tank 12 tend to accumulate in a mountain shape, but in this configuration, the first thing sensor 60 between the grain raising device 29 and the lateral feed transport device 30 is the flow rate of the grains. Detects Fv1. Due to the configuration in which the first product sensor 60 detects the flow rate Fv1 of the grains between the grain raising device 29 and the lateral feed transport device 30, the shape of the grain pool inside the grain tank 12 is not affected. It is possible to calculate the amount of work with high accuracy.

[Adjustment of leakage opening of chaff sheave]
As shown in FIG. 17, the flow rate Fv1 of the grains corrected by the correction unit 80 is transmitted to the control unit 82. The control unit 82 controls the threshing device 1 based on the corrected flow rate Fv1 of the grain and the flow rate Fv2 of the second product. Specifically, as shown in FIG. 19, in the control unit 82, if the flow rate Fv1 of the grains exceeds the first threshold value and the flow rate Fv2 of the second product exceeds the second threshold value, the sorting unit 42 The leakage opening degree of at least one of the first chaff sheave 38 and the second chaff sheave 39 is reduced. As a result, the flow rate Fv1 of the grains can be reduced, the flow rate Fv2 of the second product can be increased, the amount of the threshed product to be sorted by the threshing device 1 can be increased, and the sorting accuracy can be further improved. Therefore, it is possible to reduce the amount of impurities mixed in the first substance.

Further, in the control unit 82, it is preferable to increase the leakage opening degree of the chaff sheave when the flow rate Fv1 of the grain becomes smaller than the third threshold value smaller than the preset first threshold value. Thereby, when the flow rate Fv1 of the grain is not more than a predetermined amount, the flow rate Fv1 of the grain can be increased.

Further, in some cases, even when the leakage opening degree of the first chaff sheave 38 and the second chaff sheave 39 is reduced, the state in which the flow rate Fv1 of the grains is larger than the first threshold value continues, or It is assumed that the state in which the flow rate Fv2 of the second product is below the second threshold value continues or the ratio of the flow rate Fv2 of the second product to the flow rate Fv1 of the grains does not decrease, but this is supplied to the threshing device 1. This is due to too much crop being produced. Therefore, even when the leakage opening degree of the first chaff sheave 38 and the second chaff sheave 39 is increased, the traveling control of the machine frame 2 is performed particularly when the flow rate Fv2 of the second product is larger than the second threshold value. It is preferable that the traveling device 3 reduces the traveling speed of the machine frame 2. This makes it possible to reduce the amount of crops supplied to the threshing device 1 and reduce the amount of threshing and sorting in the threshing device 1. Therefore, for example, when the flow rate Fv2 of the second product is increased due to the state in which the threshed product is clogged in the Glen Sheave 40, it is possible to eliminate the state in which the threshed product is clogged. ..

Such a traveling device 3 can also be configured to automatically travel the machine frame 2. In such a case, it is possible to reduce the traveling speed of the airframe frame 2 or stop the vehicle based on the first threshold value and the second threshold value.

Further, for an unexpected reason, the flow rate Fv2 of the second product with respect to the flow rate Fv1 of the grain is from the time when the leakage opening degree of the first chaf sheave 38 and the second chaf sheave 39 is increased to the time when a preset time elapses. When the ratio does not decrease, or when the ratio of the flow rate Fv2 of the second product to the flow rate Fv1 of the grains does not decrease by the time when the preset time elapses after the traveling speed of the machine frame 2 is reduced, the traveling is performed. It is preferable that the device 3 stops the airframe frame 2. As a result, the supply of crops to the threshing device 1 can be temporarily interrupted, so that the load related to the threshing process and the sorting process in the threshing device 1 can be reduced. Therefore, at present, it is possible to process the crop in the threshing device 1 and eliminate the state in which the threshed product in the Glenshive 40 is clogged.

If the tilting posture of the dust feed valve 53a can be changed, it is also possible to change the tilting angle based on the flow rate Fv1 of the grain and the flow rate Fv2 of the second product.

[Other embodiments]
The present invention is not limited to the configuration exemplified in the above-described embodiment, and the following will exemplify another typical embodiment of the present invention.

(1) In the above embodiment, an example of the case where the combine is a normal type combine has been described, but the combine may be a head-feeding combine. The configuration of the first sensor 60 shown in the above embodiment is also applicable to a head-feeding combine. For example, as shown in FIG. 20, the first product sensor 91 may be supported by the top plate 12t of the grain tank 12. A vertically extending grain raising device 90 is supported on the left side wall 12b of the grain tank 12, a screw conveyor 90A is provided in the grain raising device 90, and the screw conveyor 90A rotates clockwise in a plan view. A discharge port 12h is formed at a position on the left side wall 12b where the upper end of the grain raising device 90 is located, and the discharge port 12h communicates with the internal space of the grain raising device 90.

The screw conveyor 90A vertically conveys grains from the bottom of the threshing device 1, and a rotary blade 90B is provided at the upper end of the screw conveyor 90A. The rotary blade 90B rotates integrally with the screw conveyor 90A. The discharge port 12h is provided at a position where the rotary blade 90B is located.

The first object sensor 91 is provided with an arm unit 92 and a sensor unit 93. When the grains are discharged from the discharge port 12h, some of the grains come into contact with the arm portion 92, and the arm portion 92 swings. The swing angle θ1 of the arm unit 92 is measured by the sensor unit 93, and the flow rate Fv1 of the grains is calculated based on the measurement result.

A bulging portion 95 is formed on the top plate 12t of the grain tank 12. The bulging portion 95 bulges upward from the surface portion of the top plate 12t, and a bulging space is formed inside the bulging portion 95. The rotation shaft 94 of the arm portion 92 is supported by the bulging portion 95. The bulging portion 95 is formed so that the portion of the bulging portion 95 located directly above the rotation shaft 94 is at the highest position. Further, an inclined surface 95a is formed on the front portion of the machine body of the bulging portion 95, and the inclined surface 95a approaches the top plate 12t toward the front side of the machine body.

FIG. 20 shows the virtual line L3. The virtual line L3 extends downward from the swing axis Y2 and intersects in a direction orthogonal to the upper end line of the throwing path region S1. The free end portion of the arm portion 92 is located on the side opposite to the side where the discharge port 12h is located with respect to the virtual line L3 in a state where the grains extend downward without colliding with each other. From this, the more the arm portion 92 swings to the side opposite to the side where the discharge port 12h is located, the more portion of the arm portion 92 that protrudes out of the throwing path region S1. That is, the arm portion 92 is configured so that the larger the swing angle θ1, the greater the proportion of the arm portion 92 protruding outside the throwing path region S1.

When the amount of the most matter discharged from the discharge port 12h becomes large, the arm portion 92 swings upward greatly. At this time, the swing base end portion side of the arm portion 92 is located above the top plate 12t and is housed in the bulging portion 95. That is, when the amount of the most matter discharged from the discharge port 12h is large, the arm portion 92 swings upward greatly, and the ratio of the portion of the arm portion 92 that deviates above the throwing path region S1 of the grain is increased. Will increase. Further, the larger the arm portion 92 swings upward, the larger the proportion of the portion of the arm portion 92 that is housed in the bulging portion 95. Therefore, most of the first thing diffuses into the inside of the grain tank 12 along the parabola without coming into contact with the arm portion 92.

(2) In the above embodiment, when the flow rate Fv2 of the second object detected by the second object sensor 70 is larger than the second threshold value, the traveling device 3 that controls the traveling of the machine frame 2 is the machine frame 2. Although a configuration for reducing the traveling speed is shown, the present invention is not limited to this embodiment. When the leakage opening degree of the first chaff sheave 38 is set to be small, the flow rate Fv1 of the grains is reduced, and the reduced amount of the flow rate Fv1 of the grains is collected as the second item by the second item collection unit 27 for further sorting. The accuracy is improved. On the other hand, if the amount collected by the second product collection unit 27 increases too much, the second product overflows from the second product collection unit 27 and is discharged as it is together with the straw and the like, resulting in a harvest loss. In order to avoid such inconvenience, for example, as shown in FIG. 21, when the flow rate Fv2 of the second product is larger than the fourth threshold value, the control unit 82 increases the leakage opening degree of the first chaff sheave 38. May be. As a result, the leakage of the sorted product from the first chaff sheave 38 is promoted, the flow rate Fv1 of the grains increases, and the amount collected by the second product collection unit 27 decreases, so that the second product collection unit 27 The risk of the second item overflowing is reduced.

If the second threshold value shown in FIG. 18 and the fourth threshold value shown in FIG. 21 are the same, and if the flow rate Fv2 of the second product is larger than the second threshold value and the fourth threshold value, the control unit 82 may use the control unit 82. The leakage opening degree of the first chaff sheave 38 is increased, and the traveling speed of the airframe is reduced.

A case where the fourth threshold value shown in FIG. 21 is larger than the second threshold value shown in FIG. 18 will be described. When the flow rate Fv2 of the second object is larger than the second threshold value and smaller than the fourth threshold value, the control unit 82 reduces the traveling speed of the aircraft, but does not increase the leakage opening degree of the first chaff sheave 38. .. Then, when the flow rate Fv2 of the second object is larger than the second threshold value and larger than the fourth threshold value, the control unit 82 increases the leakage opening degree of the first chaff sheave 38 and the traveling speed of the aircraft. To reduce. Further, when the flow rate Fv2 of the second object is larger than the second threshold value and larger than the fourth threshold value, the control unit 82 increases the leakage opening degree of the first chaff sheave 38 and changes the traveling speed of the aircraft. It may be configured to return to the previous state.

A case where the fourth threshold value shown in FIG. 21 is smaller than the second threshold value shown in FIG. 18 will be described. When the flow rate Fv2 of the second object is larger than the fourth threshold value and smaller than the second threshold value, the control unit 82 increases the leakage opening degree of the first chaff sheave 38, but does not reduce the traveling speed of the aircraft. .. Then, when the flow rate Fv2 of the second object is larger than the fourth threshold value and larger than the second threshold value, the control unit 82 increases the leakage opening degree of the first chaff sheave 38 and the traveling speed of the aircraft. To reduce. Further, when the flow rate Fv2 of the second product is larger than the fourth threshold value and larger than the second threshold value, the control unit 82 reduces the traveling speed of the machine body and changes the leakage opening degree of the first chaff sheave 38. It may be configured to return to the previous state.

(3) In the above embodiment, the correction unit 80 corrects the grain flow rate Fv1 calculated by the first flow rate calculation unit 81A with the second flow rate Fv2 calculated by the second flow rate calculation unit 81B. , Not limited to this embodiment. For example, the correction unit 80 may not be provided, and the flow rate Fv1 of the grains may not be corrected by the correction unit 80.

(4) The amount of work may be an adjustment value of the leakage opening degree of the chaff sheave. For example, as shown in FIG. 22, the work amount calculation unit 84 may be configured to output the adjustment value of the leakage opening degree to the control unit 82 based on the flow rate Fv1 of the grains. The control unit 82 may be configured to adjust the leakage opening degree of the first chaff sheave 38 and the second chaff sheave 39 based on the adjustment value received from the work amount calculation unit 84.

(5) In the above embodiment, the working time Tw as the working amount is a value obtained by subtracting the yield Vi from the specific yield value Vd and dividing the remaining value Vre by the average yield Vt per unit time. It is not limited to the form. Further, in the above embodiment, the work mileage Dw as the work amount is a value obtained by dividing the remaining value Vre obtained by subtracting the yield Vi from the specific yield value Vd by the average yield Vr per unit mileage. It is not limited to the embodiment. For example, the working amount may be a value obtained by dividing the remaining value Vre, which is obtained by subtracting the yield Vi from the specific yield value Vd, by the flow rate Fv1 (instantaneous value).

(6) In the above embodiment, the working amount is the working amount until the grain corresponding to the specific yield value Vd is stored in the grain tank 12, but is not limited to this embodiment. For example, the amount of work may be the amount of work until grains corresponding to a specific yield value Vd are stored in a truck for transporting grains. Further, the amount of work may be the amount of work until the grains corresponding to the specific yield value Vd are stored in the dryer of the drying facility.

(7) In the above-described embodiment, the first sensor 60 is configured to detect the swing angle θ1 of the arm portion 63 by the first sensor portion 64, but is not limited to this embodiment. For example, the first object sensor 60 may be provided with a plate portion and a load cell. The load cell may be configured to detect the load from the plate portion when the grains collide with the plate portion.

(8) In the above-described embodiment, the combine is provided with a first flow rate calculation unit 81A, a second flow rate calculation unit 81B, a work amount calculation unit 84, a yield reception unit 85, an emission amount calculation unit 86, and the like. It is not limited to the embodiment. For example, a computer (one or more computers, deferred) in which the first flow rate calculation unit 81A, the second flow rate calculation unit 81B, the work amount calculation unit 84, the yield reception unit 85, the emission amount calculation unit 86, etc. are not mounted on the combine. It may be any of the portable devices). In this case, a calculation system may be configured in which each of the computer and the harvester is provided with a separate calculation function, and each calculation function can perform data communication (for example, wired / wireless Internet communication) with each other.

It should be noted that the configuration disclosed in the above embodiment (including another embodiment, the same shall apply hereinafter) can be applied in combination with the configuration disclosed in other embodiments as long as there is no contradiction. Moreover, the embodiment disclosed in the present specification is an example, and the embodiment of the present invention is not limited to this, and can be appropriately modified without departing from the object of the present invention.

The present invention can be used for a combine that cuts a planted grain culm in a field and performs a threshing sorting process of the cut grain culm by a threshing device. Further, the technical features of the combine of the present invention can also be applied to a calculation system. Therefore, the above-described embodiment can be configured as a calculation system. In addition, the technical features of the combine of the present invention can also be applied to the calculation method. Therefore, the above-described embodiment can be configured as a calculation method. In addition, the technical features of the combine of the present invention are also applicable to calculation programs. Therefore, the above-described embodiment can be configured as a calculation program. Further, a recording medium such as an optical disk, a magnetic disk, or a semiconductor memory in which a calculation program having this technical feature is recorded is also included in the configuration of the above-described embodiment.

1: Threshing device 12: Grain tank 29: Grain raising device (transport device)
30: Horizontal feed transfer device (transport device)
60: First object sensor (flow rate measuring device)
63: Arm part 64: First sensor part (sensor part)
81A: First flow rate calculation unit (calculation unit)
84: Work amount calculation unit 85: Yield reception unit Fv1: Grain flow rate Vi: Grain yield Vd: Specific yield value Vr: Average yield per unit mileage Vt: Average yield per unit time Dw: Work travel Distance (work load)
Tw: Working time (work amount)
θ1: Swing angle of the arm

Claims

A threshing device that threshes crops,
A grain tank for storing grains obtained by the threshing device, and
A transport device for transporting the grains obtained by the threshing device from the threshing device to the grain tank, and a transport device.
A flow rate measuring device that measures the flow rate of grains transported by the transport device, and
A yield reception section that accepts specific yield values, and
A combine that includes a work amount calculation unit that calculates the amount of work required for the yield of grains obtained by the harvesting work to reach the specific yield value based on the flow rate.
The combine according to claim 1, wherein the work amount calculation unit calculates the yield by integrating the flow rates.
The work amount calculation unit calculates the average yield per unit time based on the flow rate, subtracts the yield from the specific yield value, and divides the obtained value by the average yield to obtain the work amount. The combine according to claim 1 or 2, which calculates the working time.
The work amount calculation unit calculates the average yield per unit mileage based on the flow rate, subtracts the yield from the specific yield value, and divides the obtained value by the average yield to perform the work. The combine according to claim 1 or 2, which calculates the working mileage as an amount.
The combine according to any one of claims 1 to 4, wherein the work amount is the work amount until the grains corresponding to the specific yield value are stored in the grain tank.
The arm portion in which the grain to be transported is in contact with the flow rate measuring device and swings, the sensor portion for detecting the swing angle of the arm portion, and the swing angle detected by the sensor portion are used. The combine according to any one of claims 1 to 5, further comprising a calculation unit for calculating a flow rate.
It is a calculation system that calculates the amount of work of the combine.
A flow rate measuring device that measures the flow rate of grains transported from the threshing device to the grain tank via the transport device,
A yield reception section that accepts specific yield values, and
A calculation system including a work amount calculation unit for calculating the work amount required for the yield of grains obtained by the harvesting work to reach the specific yield value based on the flow rate.
It is a calculation method to calculate the amount of work of the combine.
A flow rate measurement step that measures the flow rate of grains transported from the threshing device to the grain tank via the transfer device, and
A yield acceptance step that accepts a specific yield value, and
A calculation method comprising a work amount calculation step for calculating the work amount required for the yield of grains obtained by the harvesting work to reach the specific yield value based on the flow rate.
It is a calculation program that calculates the amount of work of the combine.
A flow rate measurement function that measures the flow rate of grains transported from the threshing device to the grain tank via the transfer device, and
A yield reception function that accepts specific yield values, and
A calculation program that causes a computer to execute a work amount calculation function for calculating the work amount required for the yield of grains obtained by the harvesting work to reach the specific yield value based on the flow rate.
In the recording medium on which the calculation program for calculating the amount of work of the combine is recorded.
A flow rate measurement function that measures the flow rate of grains transported from the threshing device to the grain tank via the transfer device, and
A yield reception function that accepts specific yield values, and
A calculation program that causes a computer to execute a work amount calculation function that calculates the work amount required for the yield of grains obtained by the harvesting work to reach the specific yield value based on the flow rate is recorded. The recording medium that has been used.