Harvesting machine

Abstract

To provide a harvesting machine capable of reducing a likelihood that the capacity of a grain tank becomes constrained.SOLUTION: A harvesting machine 4 is provided with a threshing device 43, a grain tank, a transport device 45, and a quality measuring device 1. The grain tank accumulates grains. The transport device 45 transports the grains from the threshing device 43 to the grain tank and charges the grains into the grain tank. The quality measuring device 1 measures quality of the grains. The quality measuring device 1 acquires a part of the grains from a charging part 453 of the transport device 45 that charges the grains into the grain tank.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a harvesting machine equipped with a grain tank for storing grain. [Background technology]

[0002] As a related art, a harvesting machine (combine) equipped with a reaping section, a threshing device, a grain tank, etc. is known (see, for example, Patent Document 1). The harvesting machine according to the related art is equipped with a quality measuring device (moisture sensor unit) that measures the moisture content of harvested grains.

[0003] In the harvesting machine according to the above-mentioned related technology, a quality measuring device for measuring the moisture content of grain is attached to the ceiling wall of the grain tank, and the power line and signal line of the quality measuring device are fixed to the outer surface of the rear wall of the grain tank using fixing devices and connected to the electrical unit. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-141843 Summary of the Invention [Problem to be solved by the invention]

[0005] In the configuration of the above-mentioned related technology, the quality measuring device is placed inside the grain tank, so the capacity of the grain tank is limited to prevent the quality measuring device from becoming buried in the grains and becoming unable to measure, which creates the problem of the grain tank's capacity becoming limited.

[0006] An object of the present invention is to provide a harvesting machine in which the capacity of the grain tank is less likely to become limited. [Means for solving the problem]

[0007] A harvesting machine according to one aspect of the present invention comprises a threshing device, a grain tank, a conveying device, and a quality measuring device. The grain tank stores grains. The conveying device conveys the grains from the threshing device to the grain tank and deposits the grains into the grain tank. The quality measuring device measures the quality of the grains. The quality measuring device acquires some of the grains from an input section of the conveying device that deposits the grains into the grain tank. [Effects of the Invention]

[0008] According to the present invention, a harvesting machine is provided in which the capacity of the grain tank is less likely to become limited. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic left side view of a harvesting machine according to a first embodiment. [Figure 2] FIG. 2 is a schematic plan view of the harvesting machine according to the first embodiment. [Figure 3] FIG. 3 is a schematic block diagram of the harvesting machine according to the first embodiment. [Figure 4] FIG. 4 is a schematic perspective view of the periphery of the grain tank, threshing device, and conveying device of the harvesting machine according to the first embodiment. [Figure 5] FIG. 5 is a schematic left side view of the vicinity of the grain tank, threshing device, and conveying device of the harvesting machine according to the first embodiment. [Figure 6] FIG. 6 is a schematic perspective view of the threshing device and the transport device and its surroundings of the harvesting machine according to the first embodiment. [Figure 7] FIG. 7 is a schematic perspective view of the quality measuring device for the harvesting machine according to the first embodiment. [Figure 8] FIG. 8 shows the harvesting machine according to the first embodiment and is an enlarged view of area Z1 in FIG. [Figure 9] FIG. 9 shows the harvesting machine according to the first embodiment and is an enlarged view of area Z1 in FIG. [Figure 10] FIG. 10 shows the harvesting machine according to the first embodiment and is an enlarged view of the area Z1 in FIG. [Figure 11] FIG. 11 is a schematic perspective view of the vicinity of the input unit of the harvesting machine according to the first embodiment. [Figure 12] FIG. 12 is a schematic plan view of the vicinity of the input unit of the harvesting machine according to the first embodiment. [Figure 13] FIG. 13 is a schematic plan view of the vicinity of the input unit of the harvesting machine according to a modified example of the first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following description will discuss preferred embodiments of the present invention with reference to the accompanying drawings. The preferred embodiments are merely examples of the present invention and are not intended to limit the technical scope of the present invention.

[0011] (Embodiment 1) [1] Overall structure First, the overall configuration of a harvesting machine 4 according to this embodiment will be described with reference to FIGS.

[0012] The harvesting machine 4 according to this embodiment includes a traveling device 41, a reaping unit 42, a threshing device 43, a conveying device 45, a power unit 46, a driving unit 47, a straw processing unit 48, and a discharge device 49, all of which are mounted on a machine body 40 that is the main body of the harvesting machine 4. The harvesting machine 4 further includes a grain tank 2 for storing grains, a quality measuring device 1 (see FIG. 5) for measuring the quality of the grains, and other components mounted on the machine body 40. The conveying device 45 conveys grains from the threshing device 43 to the grain tank 2 and deposits the grains into the grain tank 2. In this embodiment, as shown in FIG. 3, the harvesting machine 4 further includes an electrical unit 3, a control device 51, a communication terminal 52, a harvest yield sensor 53, a grain sensor 54, a full-count sensor 55, a fuel tank, a battery, and other components mounted on the machine body 40. The electrical unit 3 is electrically connected to sensors that detect information about the grains. The sensors connected to the electrical unit 3 include the quality measuring device 1 and the harvest yield sensor 53. That is, at least the quality measuring instrument 1 and the harvest yield sensor 53 are electrically connected to the electrical unit 3.

[0013] As described above, the harvesting machine 4 according to this embodiment is equipped with at least a threshing device 43, a grain tank 2, and a conveying device 45. The harvesting machine 4 according to this embodiment is further equipped with a quality measuring device 1. FIGS. 4 and 5 are schematic diagrams showing the appearance of the grain tank 2, the threshing device 43, the conveying device 45, and the quality measuring device 1, and components other than the grain tank 2, the threshing device 43, the conveying device 45, and the quality measuring device 1 are not shown as appropriate. FIG. 6 is a schematic diagram showing the appearance of the threshing device 43, the conveying device 45, and the quality measuring device 1, and components other than the threshing device 43, the conveying device 45, and the quality measuring device 1 are not shown as appropriate.

[0014] The term "harvesting machine" as used in this disclosure refers to a machine that harvests crops in a field, and includes, as an example, a combine (combine harvester) that performs threshing and sorting in addition to harvesting. Combines as the harvesting machine 4 are primarily used for harvesting grains, and they move (travel) within the field to harvest and harvest the harvested crops. In particular, there are normal (general-purpose) combines that feed the entire harvested crop into a thresher (thresher 43), and head-feeding combines that feed only the tips of the harvested crop into the thresher. In this embodiment, a head-feeding combine will be described as an example of the harvesting machine 4. In addition, in this embodiment, as an example, the harvesting machine 4 is operated by human (operator) operation (including remote operation), but the harvesting machine 4 may also be an unmanned vehicle that operates autonomously. Furthermore, in this embodiment, the harvesting machine 4 is a "vehicle" that travels in a farm field using the traveling device 41, but the harvesting machine 4 is not limited to a "vehicle."

[0015] In the present disclosure, a "field" refers to an area where the harvesting machine 4 performs harvesting operations, and includes, for example, rice paddies, fields, orchards, and pastures where crops (agricultural products) to be harvested, such as rice, wheat, soybeans, or buckwheat, are grown. In this embodiment, as an example, a case will be described in which the target to be harvested by the harvesting machine 4 is "rice" and the field is an outdoor rice paddy where rice is grown.

[0016] Also, in this embodiment, for convenience of explanation, the vertical direction when the harvesting machine 4 is in a usable state is defined as the up-down direction D3. Furthermore, as shown in FIG. 2 , the left-right direction D1 and the front-rear direction D2 are defined based on the direction as seen by a person (operator) riding on the harvesting machine 4 (the driving unit 47 of the harvesting machine 4). In other words, each direction used in this embodiment is a direction defined based on the body 40 of the harvesting machine 4, and the direction in which the body 40 moves when the harvesting machine 4 moves forward is "forward," and the direction in which the body 40 moves when the harvesting machine 4 moves backward is "rear." Similarly, the direction in which the front end of the body 40 moves when the harvesting machine 4 turns right is "rightward," and the direction in which the front end of the body 40 moves when the harvesting machine 4 turns left is "leftward."

[0017] Furthermore, in this embodiment, the left-right direction D1 perpendicular to the up-down direction D3 is defined as the "first direction," and the front-rear direction D2 perpendicular to both the up-down direction D3 and the left-right direction D1 (first direction) is defined as the "second direction." In other words, the first direction (left-right direction D1) and the second direction (front-rear direction D2) are both directions along a horizontal plane and perpendicular to each other. However, these directions are not intended to limit the direction of use (direction during use) of the harvesting machine 4. For example, the front-rear direction D2 perpendicular to the up-down direction D3 may be defined as the "first direction," and the left-right direction D1 perpendicular to both the up-down direction D3 and the front-rear direction D2 (first direction) may be defined as the "first direction."

[0018] The traveling device 41 can move the harvesting machine 4 in the forward / backward direction D2 and the left / right direction D1. For example, the harvesting machine 4 performs harvesting work while meandering within a field such as a rice paddy or a farm. As an example, the harvesting machine 4 may move within the field while turning right (or left) from the outside to the inside, in which case the movement trajectory of the harvesting machine 4 will be a spiral path.

[0019] The reaping unit 42 reaps crops in the field (rice, as an example, in this embodiment). The reaping unit 42 is disposed in front of the machine body 40 of the harvesting machine 4 and is connected to the machine body 40. The reaping unit 42, together with the machine body 40, constitutes the harvesting machine 4. In other words, the harvesting machine 4 according to this embodiment comprises the reaping unit 42 and the machine body 40. The machine body 40 includes at least a traveling device 41. When the reaping unit 42 is attached to the machine body 40, the reaping unit 42 forms part of the components of the harvesting machine 4. The stalks cut by the reaping unit 42 are sent to a threshing device 43 located behind the reaping unit 42.

[0020] The threshing device 43 performs a threshing process on the stalks cut by the reaping unit 42. In the threshing process, threshed grains containing grain grains are separated from the stalks. The threshing device 43 has a threshing unit 430 and a sorting unit 44. The threshing device 43 performs a threshing process on the stalks, for example, while transporting the stalks from the front to the rear of the threshing device 43. The threshed grains fall from the threshing unit 430 to the sorting unit 44 below. Similarly, the sorting unit 44 performs a sorting process on the threshed grains, for example, while transporting the threshed grains from the front to the rear of the sorting unit 44.

[0021] More specifically, the threshing section 430 has a threshing body with many threshing teeth and a receiving net 431. The threshing section 430 threshes the part of the stalk with the ear attached by rotating the threshing body. The receiving net 431 is a semi-cylindrical net located below the threshing body. The receiving net 431 allows only the threshed grains, which are the threshed grains by the threshing body, to leak through the mesh into the sorting section 44. In other words, the threshed grains fall from the receiving net 431 into the sorting section 44. Meanwhile, the threshed stalks (straw) are sent to the straw processing section 48.

[0022] The sorting unit 44 is disposed below the receiving net 431 of the threshing unit 430. The sorting unit 44 performs a sorting process to sort grains from the threshed grains that drop from the receiving net 431 of the threshing unit 430. In this embodiment, the sorting unit 44 has a vibration sorting function to sift out grains, and a wind sorting function to sort grains by wind (air current). In short, the sorting unit 44 sorts grains from the threshed grains, for example, by blowing wind obliquely downward onto the threshed grains and sieving them.

[0023] Specifically, as shown in Figure 5, the sorting section 44 has a first transport chamber 441, a second transport chamber 442, a winnowing fan chamber 443, a second fan chamber 444, a second return port 445, a chaff sieve 446 (see Figure 6), and a grain sieve 447 (see Figure 6). Fans are respectively installed in the winnowing fan chamber 443 and the second fan chamber 444 to generate sorting air.

[0024] In the sorting section 44, while the chaff sieve 446 and the grain sieve 447 are oscillated by the oscillating mechanism, the material to be processed that falls from the receiving net 431 of the threshing section 430 is roughly sorted by the chaff sieve 446 and then sorted by the grain sieve 447.

[0025] Grains and straw chips that fall from the chaff sieve 446 and the grain sieve 447 are sorted by the sorting wind from the fans in the winnowing fan chamber 443 and the second fan chamber 444. At this time, heavy grains with a high specific gravity fall against the sorting wind as the first grains and are stored in the first transport chamber 441. Materials that are lighter and have a lower specific gravity than this are blown upward by the sorting wind to the second transport chamber 442.

[0026] Of the materials blown upward into the second transport chamber 442, relatively heavy materials, such as grains with stalks, fall as second-grade materials and are stored in the second transport chamber 442. The remaining materials are blown further backward by the sorting wind, and the straw debris among them is loosened by a straw rack. The grains in the straw debris fall as second-grade materials and are stored in the second transport chamber 442.

[0027] The grains (first grain) stored in the first transport chamber 441 are transported to the grain tank 2 by the transport device 45. The grains (second grain) stored in the second transport chamber 442 are transported by the second return device to the threshing body of the threshing section 430 or the second return port 445 above the sorting section 44, where they are either threshed or sorted again by the sorting section 44 without being threshed.

[0028] The conveying device 45 includes a horizontal conveying section 451 (see FIG. 4), a vertical conveying section 452, and an input section 453. The horizontal conveying section 451 is disposed in the first conveying chamber 441 of the sorting section 44 and is a horizontal feed screw (first screw) that conveys the grains (first grains) stored in the first conveying chamber 441 along the left-right direction D1. In the present embodiment, as an example, the horizontal conveying section 451 is a screw conveyor that conveys the grains threshed by the threshing device 43 to the entrance of the vertical conveying section 452. The vertical conveying section 452 connects the exit of the horizontal conveying section 451 to an input section 453 provided at the top of the grain tank 2, and conveys the grains along the up-down direction D3. In other words, the vertical conveying section 452 conveys the grains from its lower end connected to the exit of the horizontal conveying section 451 to its upper end connected to the input section 453, thereby further conveying the grains conveyed by the horizontal conveying section 451 upward along the up-down direction D3.

[0029] The feeding section 453 is connected to the outlet (upper end) of the vertical conveying section 452, and feeds the grains transported by the vertical conveying section 452 into the grain tank 2. In other words, the grains transported to the upper end of the vertical conveying section 452 are fed into the grain tank 2 by the feeding section 453. As a result, the grains are transported from the threshing device 43 (sorting section 44) to the feeding section 453 by the horizontal conveying section 451 and the vertical conveying section 452, and are fed into the grain tank 2 by the feeding section 453.

[0030] The grain tank 2 is a tank (container) that stores threshed grain (grain, etc.) obtained by the threshing and sorting processes in the threshing device 43. The grain tank 2 is arranged next to the threshing device 43 in the left-right direction D1, which is the width direction of the body 40. In this embodiment, as an example, when the body 40 is divided into approximately equal halves in the left-right direction D1, the threshing device 43 (threshing section 430 and sorting section 44) is located on the left side, and the grain tank 2 is located on the right side.

[0031] The grain tank 2 is configured to be movable between a closed position and an open position by rotating in a horizontal plane. In the closed position, the grain tank 2 covers the right side of the left part of the machine body 40, including the threshing device 43, etc. In the open position, the right side of the left part of the machine body 40, including the threshing device 43, etc., is open.

[0032] This allows the grain tank 2 to move (rotate) between the closed position and the open position, and for example, when performing maintenance on the swing bearing of the sorting section 44, the grain tank 2 can be moved to the open position, making it easier to secure work space for maintenance, etc. Figure 2 etc. shows the grain tank 2 in the closed position.

[0033] Here, the conveying device 45 is fixed to the left side portion of the machine body 40 including the threshing device 43 and the like. Specifically, as shown in FIG. 4, the conveying device 45 is connected to the left side portion of the machine body 40 including the threshing device 43 and the like by a connecting member 454. The connecting member 454 is attached to the center portion in the up-down direction D3 of the vertical conveying section 452 of the conveying device 45, and is fixed to the left side portion of the machine body 40 including the threshing device 43 and the like by fasteners such as bolts. In other words, the connecting member 454 is a member that connects the conveying device 45 and the threshing device 43. This allows the machine body 40 to stably support the conveying device 45, which has a height in the up-down direction D3.

[0034] In this way, since the conveying device 45 is fixed to the left side portion of the machine body 40 including the threshing device 43 etc., the positional relationship between the conveying device 45 and the grain tank 2 changes when the grain tank 2 is opened or closed. That is, when the grain tank 2 is in the closed position, the conveying device 45 contacts the left side surface of the grain tank 2, whereas when the grain tank 2 is in the open position, the conveying device 45 is separated from the left side surface of the grain tank 2. In other words, the grain tank 2 is movable between a closed position in which it contacts the conveying device 45 and an open position in which it is separated from the conveying device 45.

[0035] The discharge device 49 discharges the grains in the grain tank 2 to any location around the harvesting machine 4. The discharge device 49 has a discharge conveying path 490 and a conveying mechanism 493. The discharge conveying path 490 is a path for discharging the stored material (grains) in the grain tank 2. The discharge conveying path 490 includes a vertical conveying path 491 extending in the vertical direction D3 and a horizontal conveying path 492 extending in a direction (horizontal direction) perpendicular to the vertical direction D3. The lower end of the vertical conveying path 491 is connected to the grain tank 2, and the upper end of the vertical conveying path 491 is connected to the horizontal conveying path 492. As a result, the stored material in the grain tank 2 is conveyed upward through the vertical conveying path 491, and further conveyed horizontally through the horizontal conveying path 492, and discharged from the tip of the horizontal conveying path 492.

[0036] The conveying mechanism 493 is, for example, a screw (auger) that rotates within the discharge conveying path 490 to convey the grains through the discharge conveying path 490. That is, within the vertical conveying path 491, the vertical auger serving as the conveying mechanism 493 rotates to convey the grains, and within the horizontal conveying path 492, the horizontal auger serving as the conveying mechanism 493 rotates to convey the grains.

[0037] The straw processing unit 48 discharges waste straw and other waste materials generated during the threshing process. In other words, the straw and other materials separated from the threshed grains (including grains) during the threshing process in the threshing device 43 are transported to the straw processing unit 48 as waste materials. The straw processing unit 48 has a discharge outlet 481 (see FIG. 1) for discharging the waste materials to the outside of the machine body 40. The straw processing unit 48 is disposed, for example, behind the threshing device 43, that is, at the left rear of the machine body 40, and the discharge outlet 481 opens toward the rear. The straw processing unit 48 has a straw cutter or the like, and performs cutting processes on the waste materials before discharging the waste materials from the discharge outlet 481. However, it is not essential that the straw processing unit 48 perform cutting processes or the like.

[0038] The power unit 46 is a drive source for the traveling device 41, the reaping device 42, the threshing device 43, the conveying device 45, the straw processing device 48, and the discharge device 49. The power unit 46 has an engine such as a diesel engine as a power source. The power unit 46 may also have a hybrid power source including an engine and a motor (electric motor). The power unit 46 has a rotary screen to prevent clogging of the radiator and maintain the cooling performance of the engine. The rotary screen is located on the right side of the power unit 46.

[0039] The driving unit 47 is provided with a driver's seat where an operator sits, and operating devices such as a steering wheel, various operating levers, and various operating switches that are operated by the operator. In this embodiment, the driving unit 47 is disposed in front of the grain tank 2 on the right side of the body 40 of the harvesting machine 4 (see FIG. 2). Furthermore, the driving unit 47 is located behind the reaping unit 42.

[0040] Here, the types of the driving unit 47 of the harvesting machine 4 include a cabin type, a canopy type, and a floor type. The cabin-type driving unit 47 includes a cabin, and the operator sits in the cabin space inside the cabin. The canopy-type driving unit 47 includes a canopy (roof), and the operator sits in the space below the canopy. The floor-type driving unit 47 does not include a cabin or canopy, and the operator sits in a space that is open upward. In this embodiment, a case where the driving unit 47 is of the cabin type will be described as an example.

[0041] The control device 51 controls the traveling device 41, the reaping unit 42, the threshing device 43, the conveying device 45, the power unit 46, the straw processing device 48, the discharge device 49, etc. in accordance with operations received by the operating device. The control device 51 mainly comprises a computer system having one or more processors such as a CPU (Central Processing Unit) and one or more memories such as a ROM (Read Only Memory) and a RAM (Random Access Memory), and executes various processes (information processing). In this embodiment, the control device 51 is an integrated controller that controls the entire harvesting machine 4, and is composed of, for example, an electronic control unit (ECU). However, the control device 51 may be provided separately from the integrated controller.

[0042] Furthermore, in this embodiment, the control device 51 is connected to the quality measuring device 1, the harvest yield sensor 53, the grain sensor 54, and the full quantity sensor 55 via the electrical component unit 3. That is, the quality measuring device 1, the harvest yield sensor 53, etc., which are sensors that detect information about grains, are electrically connected to the electrical component unit 3. The electrical component unit 3 acquires the detection results of the quality measuring device 1, the harvest yield sensor 53, etc., and performs appropriate pre-processing on the detection results. Furthermore, the electrical component unit 3 controls the quality measuring device 1, the harvest yield sensor 53, etc., according to instructions from the control device 51.

[0043] The electrical unit 3 is electrically connected to the control device 51, which can acquire the measurement results of the quality measuring device 1 and the detection results of the harvest yield sensor 53, the grain sensor 54, and the full quantity sensor 55. In this embodiment, the harvest yield sensor 53 is attached to the conveying device 45, and the grain sensor 54 and the full quantity sensor 55 are attached to the grain tank 2.

[0044] The quality measuring device 1 is a device that measures the quality of grains threshed by the threshing device 43. In the present disclosure, "quality" includes internal quality such as the moisture content, protein content, or amylose content of the grains. The quality measuring device 1 outputs an electrical signal corresponding to the quality of the grains as a measurement result to the control device 51. In this embodiment, as an example, the quality measuring device 1 includes a moisture meter that measures the moisture content (moisture content) of the grains. Specifically, the quality measuring device 1 has a pair of electrode rollers driven by motor power or the like, and measures the moisture content of the grains based on changes in the electrical resistance value between the pair of electrode rollers while crushing (crushing) the grains between the pair of electrode rollers.

[0045] The harvest quantity sensor 53 is a sensor that detects the amount of grain harvested by the harvesting machine 4, that is, the harvest quantity (yield). This type of sensor includes, for example, an impact detection unit such as a strain gauge or a piezoelectric element, and detects the impact force when grains transported by the transporting device 45 toward the grain tank 2 collide with the impact detection unit. Of course, the method of obtaining the harvest quantity of the harvesting machine 4 is not limited to this. The grain sensor 54 and the full quantity sensor 55 are both sensors that detect the amount of grain stored in the grain tank 2. For example, the grain sensor 54 and the full quantity sensor 55 are attached to the inner surface of the grain tank 2 and detect the grains stored in the grain tank 2.

[0046] The control device 51 can output, by appropriate means, the acquired measurement results of the quality measuring device 1, as well as information on the detection results of the harvest yield sensor 53, the grain sensor 54, and the full quantity sensor 55. For example, the control device 51 outputs this information by displaying it on a display device installed in the driving unit 47, writing it to a recording medium, transmitting it to an external device (such as a server) via the communication terminal 52, or printing it. Furthermore, the control device 51 can also use this information to control, for example, the conveying device 45 and the quality measuring device 1.

[0047] For example, the control device 51 basically drives the quality measuring device 1 at all times and measures the quality of the grains as needed. In other words, the quality measuring device 1 is always ready to take in grains and measures the quality of the taken-in grains as needed. Details of the arrangement of the quality measuring device 1 will be explained in the section "[2] Configuration around the quality measuring device."

[0048] Further, the full quantity sensor 55 is a sensor that detects when the grains in the grain tank 2 have reached their full capacity. Therefore, when the full quantity sensor 55 in the grain tank 2 detects grains, the control device 51 notifies the operator of this (that the full quantity has been reached). Alternatively, when the full quantity sensor 55 in the grain tank 2 detects grains, the control device 51 may stop the conveying device 45 and forcibly stop the input of grains into the grain tank 2.

[0049] The communication terminal 52 communicates with a server or the like external to the harvesting machine 4. Here, the communication terminal 52 appropriately transmits information related to the operating status of the harvesting machine 4, the current location of the harvesting machine 4, the harvest amount (yield) of the crop, the taste of the crop (including the moisture content or protein content, etc.), working time or working efficiency, etc. to the server or the like. In this embodiment, the communication terminal 52 is configured to be able to detect the current location of the harvesting machine 4 using a satellite positioning system such as the GNSS (Global Navigation Satellite System). In addition, the communication terminal 52 may receive control information related to driving assistance or automatic driving of the harvesting machine 4 from the server or the like.

[0050] [2] Peripheral configuration of quality measuring instrument Next, the configuration of the periphery of the quality measuring device 1 in the harvesting machine 4 according to this embodiment will be described with reference to FIGS.

[0051] Figure 5 is a schematic left side view of the grain tank 2, threshing device 43, and conveying device 45, viewed from the left side, with the left wall 401 (see Figure 4) of the sorting section 44 removed. Figure 8 is an enlarged view of area Z1 in Figure 6. Figure 9 is an enlarged view of area Z1 in Figure 4. Figure 10 is an enlarged view of area Z1 in Figure 5. Figure 11 is a schematic oblique view of the area around the quality measuring device 1, viewed from the lower right rear. Figure 12 is a schematic plan view of the area around the quality measuring device 1, viewed from above, with the top plate 601 (see Figure 8) of the feeding case 60 (see Figure 8) of the feeding section 453 omitted.

[0052] In the harvesting machine 4 according to this embodiment, the quality measuring instrument 1 acquires some of the grains from an input section 453 of the conveying device 45 that inputs grains into the grain tank 2. That is, the quality measuring instrument 1 acquires some of the grains from the input section 453 located at the final stage of the conveying device 45, and measures the quality of the grains.

[0053] In short, in this embodiment, a portion of the grains is diverted from the input section 453 of the conveying device 45, which conveys the grains from the threshing device 43 to the grain tank 2, to the quality measuring device 1. As a result, the quality measuring device 1 acquires the grains from the input section 453 of the conveying device 45.

[0054] Thus, in the harvesting machine 4 according to this embodiment, the quality measuring device 1 that measures the quality of the grains does not acquire the grains from the grain tank 2, but acquires the grains from the input section 453 of the conveying device 45. Therefore, compared to a configuration in which the quality measuring device 1 is disposed inside the grain tank 2, the capacity of the grain tank 2 is less likely to be constrained even when the quality measuring device 1 is provided. As a result, it is possible to provide a harvesting machine 4 in which the capacity of the grain tank 2 is less likely to be constrained.

[0055] More specifically, in this embodiment, as described above, when the machine body 40 is divided into approximately equal halves in the left-right direction D1, the threshing device 43 is located on the left side. The threshing device 43 has a threshing section 430 that performs threshing processing, and a sorting section 44 that performs sorting processing. The sorting section 44 is located below the threshing section 430, and sorts grains from the threshed grains that fall from the receiving net 431 of the threshing section 430.

[0056] 5, the sorting unit 44 has a winnowing fan chamber 443, a first transfer chamber 441, a second fan chamber 444, and a second transfer chamber 442, in this order from the front. That is, the winnowing fan chamber 443, the first transfer chamber 441, the second fan chamber 444, and the second transfer chamber 442 are arranged side by side in the front-to-rear direction D2, and at least the second transfer chamber 442 is located behind the first transfer chamber 441. Furthermore, the sorting unit 44 has a second return port 445 diagonally above and behind the second transfer chamber 442.

[0057] The sorting section 44 has a left side wall 401 and a right side wall 402 spaced apart in the left-right direction D1, and the winnowing fan chamber 443, the first transport chamber 441, the second fan chamber 444, and the second transport chamber 442 are formed between the left side wall 401 and the right side wall 402. The left side wall 401 forms the side of the sorting section 44 opposite the grain tank 2 in the left-right direction D1 (the left side in this embodiment). The right side wall 402 forms the side of the sorting section 44 on the grain tank 2 side in the left-right direction D1 (the right side in this embodiment).

[0058] In the present embodiment, as an example, the components of the sorting unit 44 (left side wall 401, right side wall 402, etc.) are made of metal having sufficient rigidity. However, this is not limiting, and at least some of the components of the sorting unit 44 may be made of resin or the like.

[0059] Here, grains that fall from the receiving net 431 of the threshing unit 430 are fed into the internal space of the sorting unit 44. In this embodiment, as an example, while the chaff sieve 446 and the grain sieve 447 of the sorting unit 44 are oscillating, the processed material that has fallen from the receiving net 431 of the threshing unit 430 is sorted by the chaff sieve 446 and the grain sieve 447. At this time, heavy grains with a high specific gravity fall against the sorting wind as the first grains, are stored in the first conveying chamber 441, and are transported from the threshing device 43 (sorting unit 44) to the grain tank 2 by the conveying device 45 (horizontal conveying section 451, vertical conveying section 452, and feeding section 453).

[0060] That is, the horizontal conveying section 451 of the conveying device 45 is arranged in the first conveying chamber 441, and the grains stored in the first conveying chamber 441 are conveyed to the grain tank 2 via the horizontal conveying section 451, the vertical conveying section 452 and the feeding section 453. The vertical conveying section 452 is arranged between the grain tank 2 located to the right of the threshing device 43 and the threshing device 43. The vertical conveying section 452 is connected to the right side of the threshing device 43 by a connecting member 454.

[0061] The feeding section 453 is disposed above the vertical conveying section 452. That is, in a plan view, the feeding section 453 is disposed between the grain tank 2 and the threshing device 43. The feeding section 453 is disposed in a position facing an inlet formed on the left side surface of the grain tank 2, and feeds grains into the grain tank 2 from the inlet.

[0062] The input section 453 has an input case 60 that stores grains transported from the threshing device 43 by the transport device 45. The input section 453 is configured to input the grains in the input case 60 into the grain tank 2. In other words, the input section 453 temporarily stores the grains transported upward by the vertical transport section 452 in the input case 60, and then inputs the grains in the input case 60 into the grain tank 2.

[0063] Here, the input case 60 has an opening 61 (see FIG. 8). The quality measuring instrument 1 acquires some of the grains through the opening 61 formed in the input case 60. This makes it possible to divert some of the grains temporarily stored in the input case 60 to the quality measuring instrument 1. Therefore, in the input section 453, by simply providing the opening 61 in the input case 60, it is possible to provide some of the grains to the quality measuring instrument 1.

[0064] In this embodiment, the quality measuring device 1 is positioned below the input case 60. Therefore, in a plan view, the quality measuring device 1 is positioned between the threshing device 43 and the grain tank 2 which is in the closed position. In other words, by being positioned below the input case 60, the quality measuring device 1 is positioned to the left of the grain tank 2. Since the threshing device 43 is located to the left of the grain tank 2, the quality measuring device 1 is positioned between the threshing device 43 and the grain tank 2 in a plan view.

[0065] According to this configuration, the quality measuring device 1 can be installed by utilizing the dead space between the threshing device 43 and the grain tank 2. Therefore, problems such as the harvesting machine 4 becoming larger due to the installation of the quality measuring device 1 are unlikely to occur. Furthermore, by placing the quality measuring device 1 between the threshing device 43 and the grain tank 2, the quality measuring device 1 is less likely to come into contact with obstacles while the harvesting machine 4 is traveling, and the quality measuring device 1 is less likely to malfunction.

[0066] 5 and 6, the quality measuring device 1 is disposed below the feeding case 60 and above the connecting member 454 that connects the threshing device 43 and the conveying device 45. In other words, the quality measuring device 1 is located between the feeding case 60 and the connecting member 454 in the vertical direction D3. Furthermore, in this embodiment, as an example, the quality measuring device 1 is disposed at a position that is left rear of the vertical conveying section 452.

[0067] As shown in Figures 7 to 9, the quality measuring device 1 has a case 11, and the main body of the quality measuring device 1 (electrode roller, etc.) is housed inside the case 11. The case 11 is formed in the shape of a rectangular parallelepiped having a length in the vertical direction D3, and forms the outer shell of the quality measuring device 1. An intake port 12 and a discharge port 13 are formed on the side (right side) 111 of the case 11 that faces the grain tank 2 when the quality measuring device 1 is mounted on the harvesting machine 4.

[0068] The inlet 12 is located at the top of the side surface 111, and the outlet 13 is located at the bottom of the side surface 111. The inlet 12 is an opening for taking in grains into the quality measuring device 1. The outlet 13 is an opening for discharging grains whose quality has been measured. In this embodiment, the quality measuring device 1 measures the quality of the grains by crushing the grains therein, so the grains taken in from the inlet 12 are crushed inside the quality measuring device 1, and the crushed grains are discharged from the outlet 13.

[0069] The quality measuring device 1 has an intake part 14 that protrudes from the side (right side) 111 of the case 11. When the quality measuring device 1 is mounted on the harvesting machine 4, the intake part 14 protrudes toward the grain tank 2, i.e., to the right.

[0070] The intake unit 14 has a pair of intake rollers 141. The pair of intake rollers 141 are located directly below the intake port 12, and are driven to rotate so as to take in grains into the intake port 12. In other words, the quality measuring instrument 1 rotates the pair of intake rollers 141 to take in grains and measure their quality.

[0071] Specifically, a spiral rib is formed on the outer circumferential surface of each intake roller 141. When the pair of intake rollers 141 rotates with grains placed above them, the ribs of each intake roller 141 cause the grains to move over the pair of intake rollers 141 toward the intake port 12 (i.e., leftward). As a result, when the pair of intake rollers 141 rotates, the grains are taken in from the intake port 12 into the quality measuring device 1, and when the pair of intake rollers 141 stops, the intake of grains into the quality measuring device 1 stops.

[0072] As shown in Figures 8 to 10, the quality measuring device 1 configured in this manner is placed below the input case 60 with the side (right side) 111 of the case 11 facing the grain tank 2 (to the right). In this embodiment, the quality measuring device 1 is supported by the grain tank 2. In this disclosure, "support" means that one member is mechanically connected to another member directly or indirectly (using a connector, etc.) by various methods such as fixing with fasteners such as bolts, welding, or adhesive bonding. In other words, the quality measuring device 1 is fixed (connected) to the grain tank 2 by being attached to the grain tank 2 by an appropriate method, and is supported by the grain tank 2.

[0073] Specifically, the quality measuring device 1 is supported on the grain tank 2 using a mounting bracket 71 (see FIG. 8). In this embodiment, particularly, a portion of the left side surface of the grain tank 2 is raised to the left, and the quality measuring device 1 is attached to a mounting surface 21 (see FIG. 4) of this raised portion facing the left front. As shown in FIG. 11, the mounting bracket 71 has a first piece 711 having a thickness in the left-right direction D1 and a second piece 712 extending to the right from the rear end edge of the first piece 711, and is formed into a generally L-shape overall. The first piece 711 of the mounting bracket 71 is fixed to the side surface (right side surface) 111 of the case 11 of the quality measuring device 1, and the second piece 712 of the mounting bracket 71 is fixed to the mounting surface 21 of the grain tank 2 by a fastener such as a bolt.

[0074] As a result, the quality measuring device 1 is fixed to the outer surface (mounting surface 21) of the grain tank 2. This fixing structure makes it possible to fix the quality measuring device 1 relatively firmly.

[0075] The configuration for the quality measuring instrument 1 to acquire kernels from the input unit 453 will be described in more detail below.

[0076] As shown in FIGS. 8 to 12, the feeding section 453 has a rotating body 62 in addition to the feeding case 60. The rotating body 62 throws the grains by rotating within the feeding case 60. The rotating body 62 is a plate-shaped blade member that rotates around a rotation axis Ax1 (see FIG. 12) along the vertical direction D3. In this embodiment, the rotating body 62 is located above the vertical conveying section 452 made up of a screw conveyor, and rotates together with the vertical conveying section 452, with the rotation axis Ax1 being the same as the rotation axis of the vertical conveying section 452.

[0077] The insertion case 60 forms the outer shell of the insertion section 453 and forms a space in which the rotation area of the rotor 62 is accommodated. In this embodiment, as an example, the insertion case 60 is formed in a substantially triangular shape in a plan view. The insertion case 60 has a top plate 601, a bottom plate 602, and a side plate 603. The top plate 601 and the bottom plate 602 are arranged to face each other in the vertical direction D3. The bottom plate 602 forms the bottom surface of the insertion case 60, and the vertical conveying section 452 is connected to the bottom plate 602. The side plate 603 connects the outer peripheries of the top plate 601 and the bottom plate 602 to each other. The insertion case 60 has a throwing opening 604 on the right side facing the grain tank 2, and is arranged so that the throwing opening 604 communicates with an insertion opening provided on the left side of the grain tank 2.

[0078] With this configuration, as shown in Fig. 12, when grains are stored in the feeding case 60, the feeding unit 453 rotates the rotor 62 in one direction (counterclockwise in this case) R1, thereby throwing the grains by pushing them out with the rotor 62. Because the rotation area of the rotor 62 is surrounded by the feeding case 60, the scattering range of the grains thrown by the rotor 62 is narrowed by the feeding case 60 to the throwing opening 604 side. As a result, the feeding unit 453 can feed the grains from the throwing opening 604 into the grain tank 2.

[0079] Here, the opening 61 for allowing the grains to flow horizontally from the feeding section 453 to the quality measuring device 1 is formed in the bottom plate 602 of the feeding case 60. That is, the opening 61 is formed in the bottom plate 602 that constitutes the bottom surface of the feeding case 60. The opening 61 is a hole that penetrates the bottom plate 602 in the thickness direction (the up-down direction D3), and in this embodiment, for example, is formed in a rectangular shape. By forming the opening 61 in the bottom plate 602 of the feeding case 60, the grains in the feeding case 60 can be removed from the feeding case 60 by dropping them through the opening 61. Therefore, the quality measuring device 1 can obtain the grains from the feeding case 60 without requiring power for transporting the grains separately from the conveying device 45.

[0080] The harvesting machine 4 according to this embodiment is further provided with a guide member 63. The guide member 63 is a member that guides the grains from the opening 61 to the quality measuring instrument 1. By providing such a guide member 63, it becomes possible to efficiently take in the grains removed from the opening 61 into the quality measuring instrument 1.

[0081] 10 and 11, as an example in this embodiment, the guide member 63 is a hollow cylindrical resin member formed into a rectangular tube having a length in the vertical direction D3, and both end faces in the longitudinal direction (vertical direction D3) are open. The guide member 63 is disposed below the opening 61 of the input case 60 and above the intake unit 14 of the quality measuring device 1. The guide member 63 is disposed so that its upper open surface communicates with the opening 61 of the bottom plate 602 of the input case 60 and its lower open surface faces a pair of intake rollers 141 serving as the intake unit 14.

[0082] As a result, the upper opening surface of the guide member 63 forms an "entrance" for introducing grains from the opening 61 of the feeding case 60, and the lower opening surface of the guide member 63 forms an "exit" for discharging the grains to the intake section 14 of the quality measuring device 1. In other words, the guide member 63 guides the grains introduced from the entrance (upper opening surface) through its interior to the exit (lower opening surface), and discharges them from the exit onto the intake section 14 (pair of intake rollers 141).

[0083] Moreover, the harvesting machine 4 according to this embodiment further includes a return section 64 (see FIG. 11) that guides surplus grains supplied from the input section 453 to the quality measuring device 1 to the grain tank 2. As shown in FIG. 11, the return section 64 is disposed below the intake section 14. The return section 64 is, for example, a funnel-shaped member with an enlarged upper end, and captures grains that drop from the intake section 14 and guides them into the grain tank 2. In other words, grains that are supplied from the opening 61 located above the intake section 14 and drop from the intake section 14 are captured by the return section 64 and returned to the grain tank 2.

[0084] As a result, grains supplied from the input section 453 but not taken into the quality measuring device 1 are returned to the grain tank 2, thereby reducing grain loss. In this embodiment, as an example, the lower end of the reduction section 64 extends diagonally rearward, penetrating the first piece 711 of the mounting bracket 71 and the mounting surface 21 of the grain tank 2 and protruding into the grain tank 2. As a result, grains discharged from the lower surface of the reduction section 64 are discharged into the grain tank 2.

[0085] 12, at least a portion of the opening 61 is located outside the passing area A1 (hatched area in FIG. 12) of the rotor 62 when viewed from one side in the direction of the rotation axis Ax1 of the rotor 62 (for example, from above). In this embodiment, the opening 61 is formed behind the rotation axis Ax1 on the bottom plate 602, and at least its rear end protrudes rearward from the passing area A1. This makes it possible for grains pushed out of the passing area A1 by the rotor 62 when the rotor 62 rotates to be supplied to the quality measuring instrument 1 through the opening 61, making it easier for the quality measuring instrument 1 to obtain an appropriate amount of grains.

[0086] Furthermore, in this embodiment, at least a portion of the opening 61 is located inside the passing area A1 (hatched area in FIG. 12 ) of the rotating body 62 when viewed from one side in the direction of the rotation axis Ax1 of the rotating body 62 (for example, from above). In this embodiment, the front end of the opening 61 is located within the passing area A1. As a result, when the rotating body 62 rotates, the grains moving within the passing area A1 by the rotating body 62 can be supplied to the quality measuring instrument 1 through the opening 61, making it easier for the quality measuring instrument 1 to obtain an appropriate amount of grains.

[0087] That is, in this embodiment, the opening 61 has a rectangular shape having a length in the front-rear direction D2 and is formed across the outside and inside of the passing area A1. Specifically, the area of the portion of the opening 61 located outside the passing area A1 is larger than the area of the portion located inside the passing area A1.

[0088] [3] Variation Below, we will list some modified examples of embodiment 1. The modified examples explained below can be applied in appropriate combinations.

[0089] As shown in Fig. 13, opening 61 may be configured so that at least one of its shape and size is adjustable. In the example of Fig. 13, throw-in case 60 has lid 65 that is slidable relative to bottom plate 602, and both the shape and size (opening area) of opening 61 change depending on the position of lid 65. In other words, by moving lid 65 in a direction that closes opening 61, the shape of opening 61 becomes elongated and the size of opening 61 becomes smaller. Conversely, by moving lid 65 in a direction that opens opening 61, the shape of opening 61 becomes wider and the size of opening 61 becomes larger.

[0090] In this way, by adjusting at least one of the shape and size of the opening 61, it becomes possible to adjust the amount of grains supplied to the quality measuring device 1 through the opening 61. As a result, the quality measuring device 1 can obtain a more appropriate amount of grains.

[0091] Furthermore, the harvesting machine 4 is not limited to a head-feeding combine harvester, but may be a normal combine harvester, or a harvesting machine other than a combine harvester.

[0092] Furthermore, when the machine body 40 is divided into approximately equal halves in the left-right direction D1, it is not essential that the threshing device 43 be located on the left side and the grain tank 2 be located on the right side. For example, the grain tank 2 may be located on the left side of the machine body 40 and the threshing device 43 may be located on the right side.

[0093] Furthermore, it is not essential that the opening 61 is formed across the outside and inside of the passage area A1, and the opening 61 may be formed on either the outside or the inside of the passage area A1.

[0094] Furthermore, it is not essential that the opening 61 be formed in the bottom plate 602 , and the opening 61 may be formed in the side plate 603 , for example.

[0095] Furthermore, the reduction unit 64 is not an essential component and can be omitted as appropriate.

[0096] Furthermore, the vertical conveying section 452 is not limited to a screw type, and may be, for example, a bucket type grain lifting conveyor (bucket conveyor) including multiple buckets that move along the vertical direction D3. In this case, the vertical conveying section 452 is less likely to damage the grains during conveyance.

[0097] Furthermore, the driving section 47 is not limited to a cabin type, but may be, for example, a canopy type or a floor type.

[0098] Furthermore, in the arrangement of the quality measuring device 1 shown in Figure 9 etc., depending on the opening and closing structure of the grain tank 2, the quality measuring device 1 fixed to the grain tank 2 may interfere with the vertical conveying section 452 when the grain tank 2 is opened or closed. Therefore, in order to avoid interference between the quality measuring device 1 and the vertical conveying section 452, for example, the arrangement of the quality measuring device 1 may be changed to a position where it does not interfere with the vertical conveying section 452 when the grain tank 2 is opened or closed, such as behind the vertical conveying section 452. Alternatively, for example, the quality measuring device 1 may be fixed to the vertical conveying section 452 instead of the grain tank 2, and even in this case, there will be no interference between the quality measuring device 1 and the vertical conveying section 452 when the grain tank 2 is opened or closed.

[0099] (Embodiment 2) The harvesting machine 4 according to this embodiment differs from the harvesting machine 4 according to the first embodiment in that the quality measuring instrument 1 measures the protein content of grains. Hereinafter, the same components as those in the first embodiment will be assigned the same reference numerals and descriptions thereof will be omitted as appropriate.

[0100] In the harvesting machine 4 according to this embodiment, the quality measuring instrument 1 takes in grains from the input unit 453 and measures the protein content of the grains. In this embodiment as well, the quality measuring instrument 1 acquires grains from an opening 61 formed in an input case 60 of the input unit 453.

[0101] The quality measuring device 1 may be any device that measures the quality of grains, and the quality to be measured is not limited to the moisture content (embodiment 1) and protein content (embodiment 2) of the grains, but may also be, for example, the amylose content, or a combination of these.

[0102] The configuration of the second embodiment (including the modified examples) can be adopted in appropriate combination with the various configurations (including the modified examples) described in the first embodiment.

[0103] [Appendix to the invention] The following is a summary of the invention extracted from the above-described embodiment. Note that the configurations and processing functions described in the following supplementary notes can be selected and combined as desired.

[0104] <Appendix 1> threshing equipment; A grain tank for storing grains, A conveying device that conveys the grains from the threshing device to the grain tank and deposits the grains into the grain tank; a quality measuring device for measuring the quality of the grain, The quality measuring instrument acquires a portion of the grains from an input unit of the conveying device that inputs the grains into the grain tank. Harvesting machinery.

[0105] <Appendix 2> The input unit has an input case that stores the grains transported from the threshing device by the transport device, and is configured to input the grains in the input case into the grain tank, The quality measuring device acquires a portion of the grains through an opening formed in the input case. 1. A harvesting machine as described in Appendix 1.

[0106] <Appendix 3> The opening is formed in a bottom plate that constitutes the bottom surface of the throw-in case. 1. A harvesting machine as described in Appendix 2.

[0107] <Appendix 4> The quality measuring device is disposed below the input case. 10. A harvesting machine according to claim 2 or 3.

[0108] <Appendix 5> Further provided is a guide member that guides the grains from the opening to the quality measuring device. 5. The harvesting machine according to any one of appendices 2 to 4.

[0109] <Appendix 6> The opening is configured so that at least one of its shape and size can be adjusted. 6. The harvesting machine according to any one of appendices 2 to 5.

[0110] <Appendix 7> The feeding unit further includes a rotating body that rotates in the feeding case to throw the grains, At least a part of the opening is located outside a passing area of the rotating body when viewed from one side in the rotation axis direction of the rotating body. 7. The harvesting machine according to any one of appendices 2 to 6.

[0111] <Appendix 8> The feeding unit further includes a rotating body that rotates in the feeding case to throw the grains, At least a part of the opening is located inside a passage area of the rotating body when viewed from one side in the rotation axis direction of the rotating body. 8. The harvesting machine according to any one of appendices 2 to 7.

[0112] <Appendix 9> Further provided is a reduction unit that guides surplus grains of the grains supplied from the input unit to the quality measuring device to the grain tank, 9. The harvesting machine according to any one of appendices 1 to 8. [Explanation of symbols]

[0113] 1 Quality measuring instrument 2 Glentank 4. Harvesting Machines 60 Intake Case 61 Opening 62 Rotating Body 63 Guide member 64 Reduction Section 43 Threshing equipment 45 Transport equipment 453 Input section 602 Bottom plate A1 Passage area Ax1 Rotation axis

Claims

1. threshing equipment; A grain tank for storing grains, A conveying device that conveys the grains from the threshing device to the grain tank and deposits the grains into the grain tank; a quality measuring device for measuring the quality of the grain, The quality measuring instrument acquires a portion of the grains from an input unit of the conveying device that inputs the grains into the grain tank. Harvesting machinery.

2. The input unit has an input case that stores the grains transported from the threshing device by the transport device, and is configured to input the grains in the input case into the grain tank, The quality measuring device acquires a portion of the grains through an opening formed in the input case.

2. The harvesting machine of claim 1.

3. The opening is formed in a bottom plate that constitutes the bottom surface of the throw-in case.

3. A harvesting machine according to claim 2.

4. The quality measuring device is disposed below the input case. A harvesting machine according to claim 2 or 3.

5. Further provided is a guide member that guides the grains from the opening to the quality measuring device. A harvesting machine according to claim 2 or 3.

6. The opening is configured so that at least one of its shape and size can be adjusted. A harvesting machine according to claim 2 or 3.

7. The feeding unit further includes a rotating body that rotates in the feeding case to throw the grains, At least a part of the opening is located outside a passing area of the rotating body when viewed from one side in the rotation axis direction of the rotating body. A harvesting machine according to claim 2 or 3.

8. The feeding unit further includes a rotating body that rotates in the feeding case to throw the grains, At least a part of the opening is located inside a passage area of the rotating body when viewed from one side in the rotation axis direction of the rotating body. A harvesting machine according to claim 2 or 3.

9. Further provided is a reduction unit that guides surplus grains of the grains supplied from the input unit to the quality measuring device to the grain tank, A harvesting machine according to any one of claims 1 to 3.

Images