JP2022054990A - Combine harvester - Google Patents

Abstract

To provide a combine harvester that can measure the quality of grains regardless of an amount of grains stored in a grain tank.SOLUTION: A combine harvester comprises a reaping part for reaping grain culms, a threshing part 7 for threshing grains from the reaped grain culms, and sorting them, a grain tank 10 for storing the sorted grains, a quality measurement part 50 for measuring the quality of the sorted grains, and a control unit for controlling the quality measurement part 50. The quality measurement part 50 is constituted so as to take in the grains via a grain inlet provided upstream of the grain tank 10, in a grain flow passage leading to the grain tank 10 from the threshing part 7, measure the quality of the taken-in grains, and then return the measured grains to the threshing part 7.SELECTED DRAWING: Figure 6

Description

The present invention relates to a combine that measures the quality of harvested grains.

A combine equipped with a quality measuring unit that measures the quality of harvested grains is known. For example, the combine described in Patent Document 1 is provided with a moisture content measuring device in a grain tank so that the moisture content of the harvested grain can be measured.

Japanese Unexamined Patent Publication No. 2016-67217

However, since the combine described in Patent Document 1 is provided with a moisture content measuring device in the grain tank, it may be difficult to measure the quality when the grain storage amount in the grain tank is large.

The present invention has been created for the purpose of solving these problems in view of the above circumstances, and the invention of claim 1 has a cutting unit for cutting the grain and a grain from the cut grain. A threshing unit that threshes and sorts, a grain tank that stores the selected grains, a quality measurement unit that measures the quality of the selected grains, and a control unit that controls the quality measurement unit. The quality measuring unit takes in grains in the grain flow path from the threshing section to the grain tank through an intake port provided on the upstream side of the grain tank. After measuring the quality of the captured grains, the measured grains are configured to be returned to the threshing section, and the control unit controls the capture amount of the grains to the quality measurement section. It is characterized by being provided with a control means.
The invention of claim 2 is the combine according to claim 1, further comprising a shutter for opening and closing the intake port, and the intake amount control means is the quality measuring unit based on the opening / closing control of the shutter. It is characterized by controlling the amount of grains taken in from the above.
The invention of claim 3 is the combine according to claim 2, wherein the shutter can increase or decrease the opening area of the intake port, and the intake amount control means controls the opening area of the shutter. Based on the above, the quality measuring unit is characterized in that the amount of grains taken in is controlled.

According to the invention of claim 1, the quality is measured on the upstream side of the grain tank, and the measured grain is returned to the grain removal section, so that the quality of the grain is irrespective of the amount of grain stored in the grain tank. Can be measured. Further, when the quality is not measured, the intake of grains can be stopped by the intake amount control means, so that it is possible to prevent the sorting accuracy from being lowered due to unnecessary reduction.
According to the second aspect of the present invention, the shutter can be used at low cost.
According to the third aspect of the present invention, since the amount of grains taken in can be increased or decreased, the applicable crops can be expanded based on the increase or decrease adjustment according to the crop.

It is a top view of the combine which concerns on one Embodiment of this invention. It is a left side view of the combine which concerns on one Embodiment of this invention. It is a left side view which shows the inside of the threshing part of the combine which concerns on one Embodiment of this invention. It is a top view which shows the inside of the threshing part of the combine which concerns on one Embodiment of this invention. It is a right side view which shows the inside of the combine harvesting apparatus which concerns on one Embodiment of this invention. It is a front sectional view of the threshing part which shows the grain reduction path after the quality measurement of the combine which concerns on one Embodiment of this invention. It is a rear view which shows the quality measurement part of the combine which concerns on one Embodiment of this invention. It is a figure which shows the monitor screen of the combine which concerns on one Embodiment of this invention, (a) is the figure of the normal screen, (b) is the figure of the measurement screen. It is a block diagram which shows the control composition of the combine which concerns on one Embodiment of this invention. It is a flowchart which shows the control procedure (control example 1) of the combine which concerns on one Embodiment of this invention. It is a flowchart which shows the control procedure (control example 2) of the combine which concerns on one Embodiment of this invention. It is a flowchart which shows the control procedure (control example 3) of the combine which concerns on one Embodiment of this invention.

[combine]
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIGS. 1 and 2, 1 is a combine, and the combine 1 is a general-purpose combine and has an airframe 3 supported by a traveling device 2 which is a pair of left and right crawler type traveling devices. In front of the machine 3, a cutting unit 5 for cutting the grain culm in the field is provided so as to be able to move up and down, and on one side in front of the machine 3, an operation unit 6 in which an operator sits and controls the combine 1 is provided. It is provided. On the other side of the machine 3, a threshing section 7 is provided for threshing and sorting the grain culms cut and transported by the cutting section 5. A grain tank 10 for storing the grains threshed and sorted by the threshing section 7 is arranged behind the operation unit 6, and is stored in the grain tank 10 behind the grain tank 10. A discharge auger 11 is provided for discharging the grain to the outside of the machine.

The cutting section 5 has a divider 12 for weeding the grain culms in the field, a reciprocal cutting blade 13 for cutting the culms sown by the divider 12, and a bucket shape arranged on the rear side of the cutting blade 13. Platform 14, and a reel 15 arranged above these dividers 12 and cutting blades 13 to scrape the culms backward, and the culms scraped into the platform 14 by the reels 15 are mowed. The blade 13 is configured to mow. The grain culms cut by the cutting blade 13 are laterally fed by the platform auger 16 in the platform 14, and the harvested grains are thrown into the handling chamber 19 of the threshing section 7 by the feeder 17 together with the grain culms. ..

As shown in FIGS. 2 to 4, the threshing section 7 has a handling chamber 19 into which the grain culms cut by the cutting section 5 are put, and a sorting chamber 9 arranged below the handling chamber 19. In the handling room 19, the culm is threshed, and in the sorting room 9, the threshed processed product is sorted. In the handling chamber 19, a handling cylinder 20 having a guide plate 20a spirally attached to its outer peripheral surface is housed rotatably, and a grain culm is hooked on the guide plate 20a and rotated together with the handling cylinder 20. A plurality of protruding teeth 20b are provided. Further, the handling chamber 19 has a lower side (lower portion of the handling cylinder 20) formed by a semi-cylindrical receiving net 21 along the outer periphery of the handling cylinder 20, and the grain culm put into the handling chamber 19 is formed. , It is rotated together with the handling cylinder 20 by the handling teeth 20b, and while being conveyed to the rear side of the machine body by the guide plate 20a, it is rubbed by the receiving net 21 and threshed.

The sorting chamber 9 includes a swinging sorting body 22 arranged on the lower side of the receiving net 21, a wall insert fan 23 for blowing sorting air from the front lower side to the rear upper side of the swinging sorting body 22, and a blower. It has a fan 24 and. The rocking sorter 22 has an upper and lower two-stage structure, and is composed of an upper feed pan 25, a chaf sheave 26 and a strorack 27, and a lower grain sheave 29, a chaf sheave 30 and a strorack 31. The processed material is sorted by specific gravity by being continuously provided in the lower stage and being swung back and forth.

The feed pan 25 is a corrugated plate-shaped transfer plate, and receives and transfers the processed material leaking from the receiving net 21 and the second material described later to the rear. The chaff sheaves 26 and 30 are composed of a plurality of fins arranged side by side at predetermined intervals in the front-rear direction, and these processed products transferred backwards are wind-sorted and sieved by the sorting wind of the wall insert fan 23 and the blower fan 24. Separately, the grains that have passed through the grain receive 29 made of the wire mesh member having a predetermined mesh size fall to the racen 32 as the first item.

On the other hand, the processed material transferred to the terminal portion of the rocking sorter 22 falls to the second spiral 33 via the straw rack 27, the chaff sheave 30 and the straw rack 31. Further, the long straw whose drop is restricted by the straw rack 31 is transferred to the end thereof and discharged to the outside of the machine. The handling chamber 19 and the sorting chamber 9 can be accessed by the operator by opening the side cover 36 that is openably and closably supported by the machine body 3 upward.

As shown in FIGS. 3 to 5, the first spiral 32 is interlocked with a grain raising device 37 for lifting the grain, which is the first product, to the grain tank 10, and the second spiral 33 is linked. , The reduction device 40 that lifts and reduces the second product to the reduction chamber 39 arranged on one side of the handling chamber 19 is interlocked and connected. A reduction horizontal racen 41 parallel to the handling cylinder 20 is axially mounted in the reduction chamber 39, and the second product reduced from the reduction device 40 to the rear end portion of the reduction chamber 39 is handled by the reduction horizontal racen 41. The body 20 is transported in the direction opposite to the transport direction, that is, from the rear to the front.

The reduction chamber 39 has a handling chamber reduction port 42 facing the threshing start end of the handling chamber 19 at its front end, and the second product conveyed to the front end of the reduction chamber 39 by the reduction horizontal racen 41 is a reduction horizontal racen. It is repelled by the pop-out plate 43 fixed to the front end of 41, and is reduced to the handling chamber 19 through the handling chamber reducing port 42.

As shown in FIGS. 3 to 5, a storage horizontal spiral 45 and a quality measuring unit 50 are arranged in front of the upper end portion of the grain raising device 37. The storage horizontal spiral 45 is arranged along the left-right direction, receives grains that are ejected forward from the upper end of the grain raising device 37, transports them to the right side, and drops them into the grain tank 10. Further, the quality measuring unit 50 is arranged in front of the storage horizontal spiral 45, selectively accepts grains that are ejected forward from the upper end portion of the grain raising device 37, and measures the quality thereof. That is, the quality measurement unit 50 measures the quality of grains in the grain flow path on the upstream side of the grain tank 10. As a result, the timing of quality measurement can be accelerated as compared with the conventional case where quality measurement is performed in the grain tank 10. Hereinafter, the quality measurement unit 50 will be described with reference to FIGS. 4 to 8.

[Quality measurement unit]
The quality measurement unit 50 stores the selected grains in the storage unit 61, and measures the quality of a large number of stored grains as a storage measurement type grain measurement device 60 (imaging device), and the selected 1 Alternatively, it is provided with a single grain measuring type grain measuring device 70 (moisture content measuring device) that measures the quality of several grains. In the combine 1 of the present embodiment, it is possible to measure the quality of grains by the storage measurement type grain measuring device 60 and the quality measurement by the single grain measuring type grain measuring device 70 in parallel, and the same conditions can be obtained. It is possible to measure the quality of the grain of the grain by different measurement methods.

[Retention measurement type grain measuring device]
The storage measurement type grain measuring device 60 includes a grain inlet 62 (intake port) for receiving grains ejected forward from the upper end of the grain raising device 37, an inlet shutter 63 for opening and closing the grain inlet 62, and an inlet shutter 63. A storage section 61 for storing grains received from the grain inlet 62, a grain outlet 64 formed at the bottom of the storage section 61 and reducing the grains in the storage section 61 onto the rocking sorter 22, and grains. A bottom shutter 65 that opens and closes the grain outlet 64, an imaging chamber 67 that is provided on one side of the storage portion 61 and allows the grains in the storage portion 61 to be visually recognized via the transparent member 66, and an imaging chamber 67. A light emitting element 68 such as an LED that illuminates the grains in the storage unit 61 via the transparent member 66, and an image of the grains in the storage unit 61 arranged in the image pickup chamber 67 and illuminated by the light emitting element 68. It is equipped with a camera 69. The storage measurement type grain measuring device 60 of the present embodiment is configured by using a camera 69 (including image analysis), but if the quality is measured for the stored grains, the camera 69 The present invention is not limited to this, and may be a capacitance sensor, a near infrared sensor, or the like.

When quality measurement is performed by the storage measurement type grain measuring device 60, the inlet shutter 63 is opened with the bottom shutter 65 closed, grains are received from the grain inlet 62, and the received grains are stored in the storage section 61. do. When the amount of grains in the storage section 61 reaches a predetermined amount, the grains in the storage section 61 illuminated by the light emitting element 68 are illuminated by the light emitting element 68 while the grains in the storage section 61 are illuminated by the light emitting element 68 via the transparent member 66. Image is taken with the camera 69. After imaging, the bottom shutter 65 is opened to reduce the grains in the reservoir 61 onto the rocking sorter 22, and the inlet shutter 63 is closed.

As shown in FIG. 8, the grain image captured by the camera 69 is displayed on the liquid crystal monitor 81 (liquid crystal panel with a touch panel) provided in the operation unit 6. The liquid crystal monitor 81 has at least a normal screen 81a (see FIG. 8A) displaying engine speed, running speed, remaining fuel amount, amount of grains in the grain tank 10, and the quality measuring unit 50. The measurement screen 81b (see (b) in FIG. 8) that displays the measurement result can be displayed, and the measurement screen 81b can be switched to by tapping the measurement button 81c displayed at the left end of the normal screen 81a.

On the measurement screen 81b, the quality measurement results 81d carried out at a plurality of locations in the field are displayed. In the present embodiment, the quality measurement results 81d at four locations can be displayed on one screen, and the quality measurement results 81d measured at other locations can be sequentially displayed by tapping the button 81e on the next page.

Each quality measurement result 81d displayed on the measurement screen 81b includes a grain image captured by the camera 69 and analysis data of the grain image (for example, average size of grains, uniformity of size, degree of dirt, etc.). , The grain moisture content measured by the single grain measuring device 70, the measured position information (measured position information in the field (GNSS information)), and the measured date and time information are included. Each quality measurement result 81d can be deleted by tapping the correspondingly displayed delete button 81f. Further, the average moisture content of all the measurement points is displayed at the lower right position of the measurement screen 81b.

[Single grain measurement type grain measuring device]
The single grain measuring type grain measuring device 70 is provided on the other side of the storage section 61. The grain intake section 71 of the single grain measurement type grain measuring device 70 is arranged in the grain storage path from the grain inlet 62 to the storage section 61, and a part of the grain passing through the grain storage path is branched. Then, it is taken into the measuring unit 72 of the single grain measuring type grain measuring device 70, and the moisture content of the taken-in grain is measured. Further, the grain after measurement is discharged from the discharge port 73 and reduced onto the rocking sorter 22. According to such a configuration, a part of the grains passing through the grain storage path of the storage measurement type grain measurement device 60 is branched and taken into the single grain measurement type grain measurement device 70, so that the quality measurement unit 50 It becomes possible to arrange the single grain measuring type grain measuring device 70 and the storage measuring type grain measuring device 60 while suppressing the increase in size.

Specifically, the single grain measuring type grain measuring device 70 of the present embodiment has a grain taking-in section 71 composed of a pair of sampling screws 74, a moisture meter 75 (see FIG. 9), and the like. A measurement unit 72 is provided. The grain taking-in unit 71 sends the grains on the pair of sampling screws 74 into the measuring unit 72 one by one based on the rotational drive of the pair of sampling screws 74 in a predetermined direction. The measuring unit 72 measures the water content of the grain between a crushing unit (not shown) that crushes the sent grain and a pair of electrodes arranged so as to sandwich the crushed grain (not shown). A moisture meter 75 is provided. The moisture meter 75 measures the moisture content of grains based on changes in electrical resistance and capacitance between a pair of electrodes. Then, the measurement result of the moisture meter 75 is displayed on the measurement screen 81b of the liquid crystal monitor 81.

[Control unit]
As shown in FIG. 9, the combine 1 is provided with a control unit 100 for controlling the quality measurement of grains by the storage measurement type grain measuring device 60 and the single grain measuring type grain measuring device 70. On the input side of the control unit 100, in addition to the above-mentioned camera 69 and single grain measurement type grain measurement device 70, a measurement execution switch 101 for turning on / off quality measurement by the quality measurement unit 50 and a running state of the combine 1 are displayed. Travel detection means 102 (vehicle speed sensor, main shift lever position sensor, etc.) to detect, harvesting / threshing drive detection means 103 (power clutch switch, clutch on / off detection sensor, etc.), and transport grain detection to detect transport grain. Means 104 (harvested crop detecting means), processed material detecting means 105 (harvested crop detecting means) for detecting the processed material in the sorting chamber 9, and a plurality of tank level sensors for detecting the amount of grains in the grain tank 10. 106, a shutter opening area adjusting means 107 for adjusting the open position of the inlet shutter 63, an inlet shutter position detecting means 108 for detecting the opening / closing position of the inlet shutter 63, and a bottom shutter position for detecting the opening / closing position of the bottom shutter 65. The detecting means 109, the sampled grain amount detecting means 110 for detecting the grain amount in the storage unit 61, and the machine body position detecting means 111 (GNSS or the like) for detecting the position of the combine 1 are connected.

Further, on the output side of the control unit 100, in addition to the above-mentioned camera 69, single grain measurement type grain measuring device 70, and liquid crystal monitor 81, an inlet shutter driving means 112 for opening and closing the inlet shutter 63 and a bottom shutter 65 are provided. A bottom shutter driving means 113 for opening and closing and a buzzer 114 for outputting an alarm sound are connected. Further, the control unit 100 includes a data storage unit 115 that stores the measurement data of the quality measurement unit 50, a map information 116 that stores the position information of the field, and a communication unit 118 that communicates with the external server 117. The measurement data of the quality measurement unit 50 is not only displayed on the liquid crystal monitor 81 and stored in the data storage unit 114, but also transmitted to the external server 117.

[Functional configuration]
The control unit 100 includes measurement control means for controlling the quality measurement unit 50 as a functional configuration realized by the cooperation of hardware and software. The measurement control means of the present embodiment causes the quality measurement of the grain by the storage measurement type grain measurement device 60 and the quality measurement by the single grain measurement type grain measurement device 70 in parallel. Further, the measurement control means includes a continuous measurement mode in which the quality measurement unit 50 continuously executes the quality measurement of the grains, and an intermittent measurement mode in which the quality measurement unit 50 intermittently executes the quality measurement of the grains. The measurement control means includes an intake amount control means for controlling the intake amount of grains to the quality measurement unit 50 (storage unit 61).

In the continuous measurement mode, the quality measurement of grains by the quality measurement unit 50 is continuously executed based on the establishment of a predetermined continuous measurement condition. The continuous measurement condition includes detection of the start of cutting in the field or a predetermined operator operation at the start of cutting. For example, when a cutting start switch is provided and the operator operates the cutting start switch at the beginning of cutting, the continuous measurement mode is set and the quality measurement of grains by the quality measurement unit 50 is continuously executed. Further, when shifting to the continuous measurement mode based on the mowing start detection, a method of detecting the mowing start position based on the detection position of the machine position detecting means 111 and the map information 116, work such as a mowing clutch for the first time after the engine is started. The start of cutting is detected using a method of detecting the start of cutting based on the clutch being engaged and operated, and a method of detecting the start of cutting based on the detection of the transported grain culm and the processed material for the first time after the engine is started. be able to.

By executing the continuous measurement mode at the beginning of mowing in this way, a plurality of measurement results can be obtained in a short time at the beginning of mowing, so that it is possible to quickly determine whether or not the crop in the field should be harvested. Further, the control unit 100 switches to the intermittent measurement mode after the continuous measurement mode ends. As a result, excessive quality measurement can be suppressed and the life of the quality measurement unit 50 can be extended.

In the intermittent measurement mode, the quality measurement unit 50 executes the quality measurement of the grain in a single shot based on the establishment of the predetermined intermittent measurement condition. The intermittent measurement condition includes a condition that the harvested crop detecting means (in this embodiment, the transported grain culm detecting means 104 or the processed product detecting means 105) for detecting the harvested crop is switched from the crop non-detection state to the crop detection state. Is done. According to such a configuration, the quality of the grains harvested in the entire field can be measured evenly by performing the quality measurement once at the start of cutting and the resumption of cutting. The combine 1 of the present embodiment includes the transported grain culm detecting means 104 and the processed product detecting means 105 as the harvested crop detecting means, but the harvested crop detecting means may be an impact sensor or the like for detecting the grain flow rate. good. Further, the intermittent measurement conditions can include the amount of grains in the grain tank 10, the position information of the combine 1, and the like.

The intake amount control means controls the intake amount of grains to the quality measuring unit 50 based on the opening / closing control of the inlet shutter 63 that opens and closes the grain inlet 62. For example, when quality measurement is performed, the inlet shutter 63 is opened to take in grains, while when quality measurement is not performed, the inlet shutter 63 is closed to stop taking in grains, so that sorting by useless reduction is performed. Prevents a decrease in accuracy.

Further, the intake amount control means can control the intake amount of grains to the quality measuring unit 50 based on the opening area control of the inlet shutter 63. For example, when the shutter opening area adjusting means 107 described above is adjusted, the opening area of the inlet shutter 63 is adjusted by changing the opening position when the intake amount controlling means opens and drives the inlet shutter 63. According to such an uptake amount control means, the uptake amount of grains can be increased or decreased, so that the applicable crops can be expanded based on the increase / decrease adjustment according to the crop.

[Control procedure]
Next, the control procedure of the control unit 100 that realizes the above-mentioned functional configuration will be described with reference to the flowcharts shown in FIGS. 10 to 12. The continuous measurement mode is realized by steps S108 to S119, and the intermittent measurement mode is realized by steps S123 to S135.

As shown in FIG. 10, the control unit 100 first determines ON / OFF of the measurement execution switch 101 (S101), and when this determination result is OFF, the bottom shutter 65 opening drive process (S102) and the inlet. The closing drive process (S103) of the shutter 63 is executed, and the continuous measurement flag is set to "0" to return to the upper routine (S104).

On the other hand, when the control unit 100 determines that the measurement execution switch 101 is ON, the control unit 100 determines whether or not the combine 1 is being harvested (S105). For example, it can be determined whether or not harvesting is in progress based on the detection results of the traveling detecting means 102, the harvesting / threshing driving detecting means 103, and the transported grain culm detecting means 104. If the control unit 100 determines that the harvest is not in progress, the control unit 100 executes steps S102 to S104 to return to the higher-level routine, while if it determines that the harvest is in progress, the control unit 100 determines whether or not the cutting has started (S106). ), When the start of mowing, the continuous measurement flag is set to "1" (S107).

Next, the control unit 100 determines whether the continuous measurement flag is "1" or "0" (S108), and if the determination result is "1", determines whether the bottom shutter 65 is closed. Judgment (S109), if this determination result is NO, the bottom shutter 65 is closed and driven (S110), and it is determined whether the inlet shutter 63 is open (S111), and if this determination result is NO, it is determined. , The inlet shutter 63 is opened and driven (S112).

Subsequently, the control unit 100 determines whether or not the sampled grain amount of the storage unit 61 is equal to or more than a predetermined value after starting the water content measurement by the single grain measurement type grain measuring device 70 (S113) (S114). ), It is determined whether or not the measurement of the water content of a predetermined number of grains has been completed (S115). When the determination results of steps S114 and S115 are both YES, the control unit 100 executes an image of the stored grains with the camera 69, calculates a predetermined number of grains average moisture content, and saves the data as the latest data. Further, the still image data of the camera 69 and the moisture content data are associated and saved (S116). Further, the control unit 100 averages the latest accumulated data, calculates the average grain moisture content of the entire field, and stores it (S117). The data storage destination includes not only the storage unit on the machine but also the storage unit of the external server 117. Further, the data to be linked and saved can include not only the still image data and the moisture content data of the camera 69 but also the measurement position information (GNSS information) in the field.

After that, the control unit 100 opens and drives the bottom shutter 65 to reduce the grains in the storage unit 61 onto the rocking sorter 22 (S118), and outputs the measurement result to the liquid crystal monitor 81 once. The buzzer 114 notifies the end of measurement (S119). Further, the control unit 100 determines whether or not the continuous measurement end condition is satisfied (S120), and if the determination result is YES, sets the continuous measurement flag to “0” (S121) and closes the inlet shutter 63. After driving (S122), it returns to the upper routine. The continuous measurement end conditions are, for example, the completion of execution of a predetermined number of times (for example, 5 times) of continuous measurement, a predetermined operator operation (for example, an operation of a manual switch capable of operating the start / end of continuous measurement), and a predetermined mileage. , The end of cutting is detected, and the quality measurement according to steps S108 to S119 is repeated until this condition is satisfied.

On the other hand, when the control unit 100 determines in step S108 that the continuous measurement flag is "0", the control unit 100 determines whether the harvested crop detecting means is switched from OFF to ON or other than that (S123). Here, if it is determined to be other than that, the opening drive processing (S102) of the bottom shutter 65 and the closing drive processing (S103) of the inlet shutter 63 are executed, and the continuous measurement flag is set to "0" to return to the upper routine. (S104), when it is determined that the harvested crop detecting means has been switched from OFF to ON, quality measurement is performed once in steps S124 to S135.

That is, the control unit 100 determines whether the bottom shutter 65 is closed (S124), and if the determination result is NO, closes and drives the bottom shutter 65 (S125), and whether the inlet shutter 63 is open. (S126), and if the determination result is NO, the inlet shutter 63 is opened and driven (S127). Subsequently, the control unit 100 determines whether or not the sampled grain amount of the storage unit 61 is equal to or more than a predetermined value after starting the water content measurement by the single grain measurement type grain measuring device 70 (S128) (S129). ), It is determined whether or not the measurement of the water content of a predetermined number of grains has been completed (S130). When the determination results of steps S129 and S130 are both YES, the control unit 100 executes photography of the stored grains with the camera 69, calculates the average moisture content of a predetermined number of grains, and saves the data as the latest data. Further, the still image data of the camera 69 and the moisture content data are associated and saved (S131). In addition, the control unit 100 averages the latest accumulated data, calculates the average grain moisture content of the entire field, and stores it (S132).

After that, the control unit 100 opens and drives the bottom shutter 65 to reduce the grains in the storage unit 61 onto the rocking sorter 22 (S133), and outputs the measurement result to the liquid crystal monitor 81 once. The buzzer 114 notifies the end of the measurement (S134), and after the inlet shutter 63 is closed and driven (S135), the process returns to the upper routine.

11 and 12 show other examples of the control procedure by the control unit 100. Since the control procedure shown in FIGS. 11 and 12 differs from the control procedure shown in FIG. 10 only in the intermittent measurement conditions (S123 in FIG. 10), only the different steps (S223, S323) will be described, and other steps will be described. For the steps, the description of FIG. 10 is incorporated by using the same reference numerals as those of FIG.

In the control procedure shown in FIG. 11, in step S223, it is determined whether the grain storage amount in the grain tank 10 is within the preset measurement range or other than that, and it is determined that the grain storage amount is within the measurement range. In that case, the quality measurement by the quality measurement unit 50 is executed once (S124 to S135). For example, a plurality of tank level sensors 106 detect the amount of grain stored in the grain tank 10 in stages, and each time each tank level sensor 106 switches from OFF to ON, the quality measurement unit 50 performs a single quality measurement. do. According to such a control example, it is possible to execute quality measurement by the quality measuring unit 50 at an appropriate timing based on the amount of grains stored in the grain tank 10. As the means for detecting the amount of grains in the grain tank 10, a paddy sensor that detects the accumulated height of the grains in contact with the accumulated grains and the accumulated height of the grains are detected by the reflected wave of ultrasonic waves. An ultrasonic sensor, a weight sensor that detects the amount of grains stored based on the weight change of the grain tank 10, and the like can be used.

In the control example shown in FIG. 12, in step S323, it is determined whether the position of the combine 1 is within the preset measurement range or other than that, and when it is determined that the position is within the measurement range, quality measurement is performed. The quality measurement by the unit 50 is executed once (S124 to S135). For example, when a plurality of measurement positions are set in the field map information 116 and the machine detection position of the machine position detecting means 111 matches the measurement position of the field map information 116, the quality measurement unit 50 executes the quality measurement once. According to such a control example, it is possible to execute quality measurement by the quality measuring unit 50 at an appropriate timing based on the aircraft position information.

[Effect of embodiment]
According to the present embodiment configured as described above, a cutting unit 5 for cutting the grain, a threshing unit 7 for threshing and sorting the grain from the cut grain, and a grain for storing the selected grain. The combine 1 includes a tank 10, a quality measurement unit 50 that measures the quality of the selected grains, and a control unit 100 that controls the quality measurement unit 50. The quality measurement unit 50 is from the threshing unit 7. In the grain flow path leading to the grain tank 10, the grain is taken in through the grain inlet 62 provided on the upstream side of the grain tank 10, the quality of the taken-in grain is measured, and then the measured grain. Since the grains are configured to be reduced to the threshing section 7, not only can the quality of the grains be measured regardless of the amount of grains stored in the grain tank 10, but also the grains are fried as shown in FIG. Even if the structure is such that the grain tank 10 is rotated outward while leaving the device 37 to enable maintenance inside the machine body, the quality measurement unit 50 can be configured without hindering the rotation of the grain tank 10. ..

Further, since the control unit 100 includes an intake amount control means for controlling the intake amount of grains to the quality measurement unit 50, when the quality measurement is not performed, the intake amount control means is used to take in the grains. By stopping it, it is possible to prevent a decrease in sorting accuracy due to unnecessary reduction.

Further, the inlet shutter 63 for opening and closing the grain inlet 62 is provided, and the intake amount control means controls the intake amount of the grain to the quality measuring unit 50 based on the opening / closing control of the inlet shutter 63, so that the quality measurement is performed. Controlling the amount of grains taken up with respect to the portion 50 can be realized by using an inexpensive shutter.

Further, the inlet shutter 63 can increase or decrease the opening area of the grain inlet 62, and the intake amount control means takes in the grain to the quality measuring unit 50 based on the opening area control of the inlet shutter 63. Therefore, it is possible to expand the applicable crops based on the increase / decrease adjustment according to the crop.

1 Combine 5 Cutting part 7 Grain removal part 10 Grain tank 22 Swinging sorter 50 Quality measuring part 60 Storage measurement type grain measuring device 61 Storage part 62 Grain inlet 63 Inlet shutter 64 Grain outlet 65 Bottom shutter 66 Transparent member 67 Imaging chamber 68 Light emitting element 69 Camera 70 Single grain measurement type grain measuring device 71 Grain taking unit 72 Measuring unit 73 Discharge port 74 Sampling screw 75 Moisture meter 81 Liquid crystal monitor 100 Control unit 104 Transported grain detection means 105 Processed object detection Means 107 Shutter opening area adjusting means

Claims (3)

The cutting department that cuts the grain culm,
A threshing department that threshes and sorts grains from the cut culm,
A grain tank that stores the selected grains, and
A quality measurement unit that measures the quality of the selected grains,
A combine that includes a control unit that controls the quality measurement unit.
The quality measuring unit is used in the grain flow path from the threshing section to the grain tank.
It is configured to take in grains through an intake port provided on the upstream side of the grain tank, measure the quality of the taken-in grains, and then return the measured grains to the threshing section.
The combine is characterized in that the control unit includes an intake amount control means for controlling the intake amount of grains with respect to the quality measurement unit. A shutter that opens and closes the intake port is provided.
The combine according to claim 1, wherein the intake amount control means controls the intake amount of grains to the quality measuring unit based on the opening / closing control of the shutter. The shutter can increase or decrease the opening area of the intake port, and can be adjusted.
The combine according to claim 2, wherein the uptake amount control means controls the uptake amount of grains to the quality measuring unit based on the control of the opening area of the shutter.

Images