JP2023015558A - Harvester - Google Patents

Abstract

To provide a harvester in which reliability of a quality measuring tool is hardly deteriorated.SOLUTION: A harvester 4 comprises: a threshing part; a grain tank 2; a quality measuring tool 1; and a putting part 3. The grain tank 2 stores grains. The quality measuring tool 1 is arranged at a position facing an internal space Sp1 of the grain tank 2, and measures quality of the grains. The putting part 3 puts the grains threshed by the threshing part, into the grain tank 2 from a putting hole 21 which is open to an inside face 20 of the grain tank 2. The quality measuring tool 1 is arranged on a same side to the putting hole 21, in view from a center of the grain tank 2, in a first direction (lateral direction D1) which is orthogonal to a vertical direction D3.SELECTED DRAWING: Figure 5

Description

The present invention relates to a harvesting machine with a grain tank for storing grain.

As a related technique, a harvesting machine (combine) including a reaping part, a threshing part, a grain tank (grain tank), etc. is known (see, for example, Patent Document 1). In the harvesting machine according to the related art, it is possible to store grains in a grain tank and carry out the grains in the grain tank out of the machine by an auger.

A harvesting machine according to related art is equipped with a quality measuring device (grain internal quality measuring device) that measures the internal quality of grains put into a grain tank. The quality measuring instrument is inserted into the grain tank through an opening formed in the ceiling plate of the grain tank and placed in the grain tank in a state of being suspended from the ceiling plate. The position of the quality measuring instrument in the grain tank is on the grain input trajectory, and when the grain is input from the front side of the left side wall to the rear side of the right side wall in plan view, the inside of the grain tank A quality gauge is placed in the right rear corner.

JP 2019-97502 A

In the configuration of the above-mentioned related technology, since the grains put into the grain tank directly hit the quality measuring instrument, the quality measuring instrument is constantly subjected to shock and vibration, and the harvesting machine is used for a long period of time. If it becomes, it may lead to a decrease in the reliability of the quality measuring instrument.

SUMMARY OF THE INVENTION An object of the present invention is to provide a harvesting machine in which the reliability of quality measuring instruments is less likely to deteriorate.

A harvesting machine according to one aspect of the present invention includes a threshing section, a grain tank, a quality measuring instrument, and an input section. The grain tank stores grains. The quality measuring instrument is arranged at a position facing the inner space of the grain tank and measures the quality of the grain. The throwing unit throws the grains threshed by the threshing unit into the grain tank from a throwing port opened on the inner surface of the grain tank. The quality measuring instrument is arranged on the same side as the inlet when viewed from the center of the grain tank in a first direction orthogonal to the vertical direction.

ADVANTAGE OF THE INVENTION According to this invention, the harvesting machine which the reliability of a quality measuring instrument cannot fall easily can be provided.

1 is a schematic left side view of a harvesting machine according to Embodiment 1. FIG. FIG. 2 is a schematic plan view of the harvesting machine according to Embodiment 1. FIG. 3 is a schematic block diagram of a harvesting machine according to Embodiment 1. FIG. FIG. 4 is a schematic perspective view around a grain tank of the harvesting machine according to Embodiment 1. FIG. 5 is a schematic plan view of the harvesting machine according to Embodiment 1, in which the upper part of the grain tank is cut away and the internal space of the grain tank is viewed from above. FIG. 6 shows the harvesting machine according to Embodiment 1 and is an enlarged view of the area Z1 in FIG. FIG. 7 shows the harvesting machine according to Embodiment 1, and is a schematic perspective view of the left panel seen from the inside of the grain tank with the ceiling panel of the grain tank removed. FIG. 8 shows the harvesting machine according to Embodiment 1, and is a schematic perspective view of the left panel seen from the inside of the grain tank with the ceiling panel of the grain tank removed. FIG. 9 shows the harvesting machine according to Embodiment 1, and is a side view of the left panel of the grain tank as seen from the inside of the grain tank with the ceiling panel of the grain tank removed. FIG. 10 shows the harvesting machine according to Embodiment 1, and is a view taken along line A1-A1 in FIG. FIG. 11 shows the harvesting machine according to Embodiment 2, and is a side view of the left panel of the grain tank as seen from the inside of the grain tank with the ceiling panel of the grain tank removed.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiments are specific examples of the present invention, and are not intended to limit the technical scope of the present invention.

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

The harvesting machine 4 according to the present embodiment includes a traveling device 41, a reaping unit 42, a threshing unit 43, a sorting unit 44, a storage device 45, a power unit 46, an operation unit 47, a straw processing unit 48, a discharging device 49, and the like. It is provided in the body 40 which is the main body of the machine 4 . The storage device 45 includes a grain tank 2 that stores grains, and an input unit 3 (see FIG. 4) that loads grains into the grain tank 2 . Moreover, in this embodiment, the harvesting machine 4 is further provided with a quality measuring instrument 1 (see FIG. 4) for measuring grain quality. In this embodiment, as shown in FIG. more ready. That is, the harvesting machine 4 includes at least a threshing section 43 , a grain tank 2 , a quality measuring instrument 1 and an input section 3 . FIG. 4 is a schematic perspective view showing the appearance of the storage device 45 including the grain tank 2, omitting the illustration of the configuration other than the storage device 45 as appropriate.

A “harvesting machine” as used in the present disclosure is a machine for harvesting crops in a field, and includes, for example, a combine (combine harvester) that performs threshing and sorting in addition to harvesting. The combine as the harvesting machine 4 is mainly used for grain harvesting, and harvests crops while moving (running) in a field. In particular, there are two types of combine harvesters: a general-purpose combine harvester that feeds the entire cut crop into the threshing machine (threshing unit 43) and a self-threshing combine that feeds only the tips of the cut crop into the threshing machine. In the form, an ordinary combine will be described as an example of the harvesting machine 4 . In this embodiment, as an example, the harvesting machine 4 is operated by a person (operator) (including remote control). machine. Furthermore, in the present embodiment, the harvesting machine 4 is a "vehicle" that travels in a field using the traveling device 41, but the harvesting machine 4 is not limited to a "vehicle".

The “field” referred to in the present disclosure is an area in which the harvesting machine 4 performs harvesting work, and is, for example, a rice field, a field, or an orchard in which crops (agricultural products) to be harvested such as rice, wheat, soybeans, or buckwheat are grown. and pastures, etc. In this embodiment, as an example, a case where the harvesting target by the harvesting machine 4 is "rice" and the field is an outdoor rice field where rice is grown will be described.

Further, in this embodiment, for convenience of explanation, the vertical direction when the harvesting machine 4 is usable is defined as the up-down direction D3. Further, as shown in FIG. 2, the left-right direction D1 and the front-rear direction D2 are defined with reference to the direction seen from the person (operator) riding (the operating section 47 of) the harvesting machine 4 . In other words, the directions used in the present embodiment are defined with reference to the body 40 of the harvesting machine 4, and the direction in which the body 40 moves when the harvesting machine 4 moves forward The direction in which the fuselage 40 moves when the machine 4 moves backward is "rear". Similarly, the direction in which the front end of the machine body 40 moves when the harvesting machine 4 turns to the right is "right", and the direction in which the front end of the machine 40 moves when the harvesting machine 4 turns to the left is "left".

Furthermore, in the present embodiment, the left-right direction D1 orthogonal to the up-down direction D3 is defined as a "first direction", and the front-rear direction D2 orthogonal to both the up-down direction D3 and the left-right direction D1 (first direction) is defined as a "second direction". and That is, the first direction (left-right direction D1) and the second direction (front-rear direction D2) are both directions along the horizontal plane and perpendicular to each other. However, these directions are not meant to limit the direction of use of the harvesting machine 4 (the direction of use). For example, the front-back direction D2 orthogonal to the up-down direction D3 may be defined as the "first direction", and the left-right direction D1 orthogonal to both the up-down direction D3 and the front-back direction D2 (first direction) may be defined as the "first direction".

The traveling device 41 can move the harvesting machine 4 in the front-rear direction D2 and the left-right direction D1. For example, the harvesting machine 4 performs harvesting work while meandering in a field such as a rice field or a field. As an example, the harvesting machine 4 may move in a field from the outside to the inside while turning right (or left). In this case, the movement locus of the harvesting machine 4 becomes a spiral path.

The reaping unit 42 reaps crops (rice in this embodiment as an example) in a field. The reaping part 42 has a reel 421, a cutter 422, a scraping auger 423, a conveyer 424, a rotor 425, a feeder house 426, and the like. The reel 421 guides the culm of the crop to the cutter 422 by rotating. Cutter 422 cuts the culm guided by reel 421 . As a result, the stalks of the crops grown in the field are cut in the middle, and the stalks including at least the tips are harvested by the harvesting machine 4 .

The raking auger 423 rakes the culms cut in this way into the feeder house 426 . Specifically, the raking auger 423 is a lateral feed screw that conveys the harvested culms in the left-right direction D<b>1 and gathers them at the front position of the feeder house 426 .

The feeder house 426 constitutes an outline of a path for passing the harvested crops (grain culms) between (the raking auger 423 of) the harvesting unit 42 and the threshing unit 43 . In the present embodiment, the threshing section 43 is positioned diagonally above and behind the harvesting section 42 . As an example, the feeder house 426 has a hollow tubular shape (square tubular shape) with a rectangular cross section, and is arranged to extend obliquely upward from the harvesting section 42 toward the threshing section 43 . The culms harvested by the harvesting unit 42 are raked into the feeder house 426 through an intake opening on the front side of the feeder house 426 and sent to the threshing unit 43 through the internal space of the feeder house 426 .

A transport conveyor 424 is arranged in a feeder house 426 . The transport conveyor 424 conveys the culms collected at a front position of the inlet of the feeder house 426 by the rake auger 423 and rake into the feeder house 426 from the inlet to the rotor 425 through the inside of the feeder house 426 . do. The rotor 425 feeds the culms conveyed by the conveyer 424 to the threshing section 43 .

The threshing unit 43 performs a threshing process on the culms harvested by the harvesting unit 42 . The threshing process separates the threshing containing grains from the culms. The threshed grains fall from the threshing section 43 to the sorting section 44 below.

The sorting unit 44 performs a sorting process of sorting out grains from the threshed grains falling from the threshing unit 43 . For example, the sorting unit 44 sorts out grains from threshed grains by sieving the threshed grains while blowing air from obliquely below the threshed grains.

The threshing section 43 performs a threshing process on the culms, for example, while conveying the culms rearward from the front portion of the threshing section 43 . Similarly, the sorting unit 44 carries out the sorting process for the grain thresh, for example, while conveying the thresh from the front to the rear of the sorting unit 44 .

The storage device 45 has a horizontal conveyer 451 (see FIG. 4), a vertical conveyer duct 452, a vertical conveyer 453, a grain tank 2, an input section 3, and the like. The horizontal conveyer 451 is a horizontal feed screw that is arranged below the sorting section 44 (and the threshing section 43) and conveys grains along the left-right direction D1. In this embodiment, as an example, the horizontal conveyor 451 is a screw conveyor that conveys the grains threshed by the threshing section 43 to the entrance of the vertical duct 452 . The vertical conveying duct 452 is a duct that connects the outlet of the horizontal conveying conveyor 451 and the input section 3 provided on the upper portion of the grain tank 2 . The vertical conveyor 453 is a screw conveyor that rotates in the vertical conveyor duct 452 to further convey the grains conveyed by the horizontal conveyor 451 along the vertical direction D3.

The input unit 3 is connected to the upper end of the vertical transport duct 452 and inputs the grains transported through the vertical transport duct 452 into the grain tank 2 . That is, the grains conveyed to the upper end of the vertical conveying duct 452 by the vertical conveying conveyor 453 are thrown into the grain tank 2 by the throwing unit 3 . As a result, the grains are conveyed from the sorting section 44 to the charging section 3 by the horizontal conveyor 451 and the vertical conveyor 453 , and charged into the grain tank 2 by the charging section 3 .

The grain tank 2 is a tank (container) that stores threshed grains (grains, etc.) obtained by the threshing process in the threshing section 43 . The grain tanks 2 are arranged side by side in the horizontal direction D<b>1 that is the width direction of the machine body 40 with respect to the threshing section 43 . In this embodiment, as an example, when the fuselage 40 is divided into two substantially equally in the left-right direction D1, the threshing part 43 (and the sorting part 44) is positioned on the left side, and the grain tank 2 is positioned on the right side.

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

The vertical transport path 491 also functions as a rotating shaft when the grain tank 2 is opened and closed. That is, the grain tank 2 is configured to be rotatable in the horizontal plane around the central axis of the vertical transport path 491 . As a result, the grain tank 2 can move (rotate) between the closed posture and the open posture. It becomes easier to secure a work space for FIG. 2 and the like show a state in which the grain tank 2 is in a closed posture.

The transport mechanism 493 is, for example, a screw (auger) that transports grain through the discharge channel 490 by rotating within the discharge channel 490 . That is, grains are conveyed in the vertical conveying path 491 by rotating the vertical auger as the conveying mechanism 493, and grains are conveyed in the horizontal conveying path 492 by rotating the horizontal auger as the conveying mechanism 493. do.

The straw processing unit 48 discharges waste such as waste straw (straw) generated in the threshing process. That is, the straw or the like separated from the threshing (including the grain) in the threshing process in the threshing section 43 is conveyed to the straw processing section 48 as a discharged material. The straw processing unit 48 has a discharge port 481 (see FIG. 1) for discharging waste to the outside of the body 40 . The straw processing section 48 is arranged, for example, behind the threshing section 43, that is, at the left rear portion of the machine body 40, and the discharge port 481 opens rearward. The straw processing unit 48 has a waste straw cutter or the like, and after performing cutting processing or the like on the discharged material, discharges the discharged material from the discharge port 481 . However, it is not essential for the straw processing unit 48 to perform the cutting process or the like.

The power unit 46 is a drive source for the traveling device 41, the reaping unit 42, the threshing unit 43, the sorting unit 44, the storage device 45, the straw processing unit 48, the discharging device 49, and the like. The power unit 46 has, for example, an engine such as a diesel engine as a power source. Moreover, the power unit 46 may have a hybrid power source including an engine and a motor (electric motor).

The operating section 47 is provided with a driver's seat on which an operator sits, and operating devices such as a handle operated by the operator, various operating levers, and various operating switches. In this embodiment, the driving unit 47 is arranged in front of the grain tank 2 (see FIG. 2) on the right side of the body 40 of the harvesting machine 4 . Further, the operating section 47 is positioned behind the reaping section 42 and above the power section 46 (see FIG. 1).

The control device 51 controls the traveling device 41, the reaping unit 42, the threshing unit 43, the sorting unit 44, the storage device 45, the power unit 46, the straw processing unit 48, the discharging device 49, etc. according to the operation received by the operating device. . The control device 51 is mainly composed of 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). Execute processing (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.

Also, in this embodiment, the control device 51 is connected to the quality measuring instrument 1 , the harvest amount sensor 53 , the grain sensor 54 and the full amount sensor 55 . Therefore, the control device 51 can acquire the measurement result of the quality measuring instrument 1 and the detection results of each of the harvest amount sensor 53 , the grain sensor 54 and the full amount sensor 55 . In this embodiment, the quality measuring instrument 1 , the harvest amount sensor 53 , the grain sensor 54 and the full amount sensor 55 are all arranged in the grain tank 2 . Details of the arrangement of the quality measuring instrument 1, the harvest amount sensor 53, the grain sensor 54, and the full amount sensor 55 will be described in the section "[2] Configuration around the grain tank".

The quality measuring instrument 1 is a device for measuring the quality of grains threshed by the threshing section 43 . "Quality" as used in this disclosure includes internal qualities such as grain moisture content, protein content or amylose content. The quality measuring instrument 1 outputs an electric signal corresponding to the grain quality to the control device 51 as a measurement result. As an example in this embodiment, the quality measuring instrument 1 includes a moisture meter that measures the moisture content (moisture content) of grains. Specifically, the quality measuring instrument 1 is equipped with a pair of electrode rollers driven by a motor power or the like. Based on the changes, the grain moisture content is determined.

The harvest amount sensor 53 is a sensor that detects the amount of grain harvested by the harvesting machine 4, that is, the harvest amount (yield). This type of sensor includes, for example, an impact detection unit such as a strain gauge or a piezoelectric element attached in the grain tank 2, and the grain conveyed toward the grain tank 2 by the vertical conveyer 453 is detected by the impact detection unit Detects the impact force when colliding with Of course, the method of obtaining the harvest amount of the harvesting machine 4 is not limited to this. Both the grain sensor 54 and the full amount sensor 55 are sensors for detecting the amount of grain stored in the grain tank 2 . As an example, this type of sensor is attached to the inner surface of the grain tank 2 and detects grains stored in the grain tank 2 .

The control device 51 can output the acquired measurement results of the quality measuring instrument 1 and the information of the detection results of the harvest amount sensor 53, the grain sensor 54, and the full amount sensor 55 by appropriate means. For example, the control device 51 displays the information on a display device installed in the operation unit 47, writes it on a recording medium, transmits it to the outside (server or the like) with the communication terminal 52, or prints it. output by doing Furthermore, the control device 51 can also use this information for controlling the storage device 45, the quality measuring instrument 1, and the like, for example.

For example, the control device 51 basically always drives the quality measuring instrument 1 to measure the quality of the grain as needed. That is, the quality measuring instrument 1 is in a state of constantly taking in grains, and measures the quality of the taken in grains at any time. On the other hand, when grains are detected by the grain sensor 54 in the grain tank 2 , the control device 51 stops the quality measuring instrument 1 to stop loading the grains into the quality measuring instrument 1 . That is, when the grain sensor 54 arranged in the grain tank 2 detects the grain, the quality measuring instrument 1 stops measuring the quality. This makes it possible to stop the operation of the quality measuring instrument 1 according to the amount of grains stored in the grain tank 2 .

Moreover, the full amount sensor 55 is a sensor for detecting that the grains in the grain tank 2 have reached the full amount. Therefore, when the full amount sensor 55 in the grain tank 2 detects the grains, the control device 51 notifies the operator of the fact (that the full amount has been reached). Alternatively, when the grain is detected by the full amount sensor 55 in the grain tank 2, the control device 51 stops the horizontal conveyer 451, the vertical conveyer 453, and the like, and stops the grain from being put into the grain tank 2. You can force it to stop.

The communication terminal 52 communicates with a server or the like outside the harvesting machine 4 . Here, the communication terminal 52 can be used for the operation status of the harvesting machine 4, the current position of the harvesting machine 4, the amount of harvest (yield) of crops, the taste of crops (including moisture content or protein content, etc.), working time or working hours. Information on efficiency etc. is sent to a server or the like as appropriate. In this embodiment, the communication terminal 52 is configured to detect the current position of the harvesting machine 4 using a satellite positioning system such as GNSS (Global Navigation Satellite System). Further, the communication terminal 52 may receive control information related to operation assistance or automatic operation of the harvesting machine 4 from a server or the like.

[2] Configuration around grain tank Next, the configuration around the grain tank 2 of the storage device 45 in the harvesting machine 4 according to the present embodiment will be described with reference to FIGS. 4 to 10. FIG. In the following description, the direction in which the grain tank 2 is in the closed posture will be used.

FIG. 5 is a schematic plan view of the internal space Sp1 of the grain tank 2, with the upper portion of the grain tank 2 cut away, viewed from above. FIG. 6 is an enlarged view of area Z1 in FIG. 7 and 8 are schematic perspective views of the left panel 204 viewed from inside the grain tank 2 with the ceiling panel 206 of the grain tank 2 removed. FIG. 9 is a side view of the left panel 204 of the grain tank 2 viewed from the inside (that is, the right side) of the grain tank 2 with the ceiling panel 206 of the grain tank 2 removed. 10 is an A1-A1 arrow view of FIG. 9. FIG.

In this embodiment, the grain tank 2 has a bottom panel 201, a front panel 202, a rear panel 203, a left panel 204, a right panel 205 and a ceiling panel 206, as shown in FIGS. As a shape, it is formed in a rectangular parallelepiped shape having a length in the front-rear direction D2. In this embodiment, as an example, the constituent members of the grain tank 2 (bottom panel 201, front panel 202, rear panel 203, left panel 204, right panel 205, and ceiling panel 206) are made of metal having sufficient rigidity. However, not limited to this, at least a part of the constituent members of the grain tank 2 may be made of resin or the like.

The bottom panel 201 is a rectangular panel having a length in the front-rear direction D2 (second direction) in plan view. The front panel 202 is a rectangular panel that rises upward from the front side of the outer periphery of the bottom panel 201 . The rear panel 203 is a rectangular panel rising upward from the rear side of the outer peripheral edge of the bottom panel 201 . The left panel 204 is a rectangular panel rising upward from the left side of the outer periphery of the bottom panel 201 . The right panel 205 is a rectangular panel rising upward from the right side of the outer periphery of the bottom panel 201 . As a result, the space above the bottom panel 201 is surrounded by the front panel 202 , the rear panel 203 , the left panel 204 and the right panel 205 on all four sides (front, back, left, and right). Further, the ceiling panel 206 is a panel formed in a rectangular shape in a plan view, which closes the upper surface of the space surrounded by the front panel 202, the rear panel 203, the left panel 204 and the right panel 205.

That is, the grain tank 2 has an internal space Sp1 surrounded by a bottom panel 201, a front panel 202, a rear panel 203, a left panel 204, a right panel 205 and a ceiling panel 206, and grains are placed in the internal space Sp1. It is configured so that it can be stored. The front panel 202 and the rear panel 203 face each other in the front-rear direction D2 (second direction). The left panel 204 and the right panel 205 face each other in the horizontal direction D1 (first direction). The bottom panel 201 and the ceiling panel 206 face each other in the vertical direction D3. The center C1 of the grain tank 2 configured in this manner is positioned within the internal space Sp1 as shown in FIG. The center C1 shown in FIG. 5 is a virtual point with no substance.

Here, grains are charged into the internal space Sp1 of the grain tank 2 from the charging portion 3 provided in the upper portion of the grain tank 2 as described above. As an example in this embodiment, as shown in FIG. Specifically, an inlet 21 (see FIG. 7, etc.) is formed at the center of the upper end of the left panel 204 in the front-rear direction D2, and the inlet 3 corresponds to the inlet 21 of the left panel 204. installed in a position where The input port 21 is open to the inner side surface 20 (see FIG. 7 and the like) of the grain tank 2 , and the input part 3 inputs grains into the grain tank 2 from the input port 21 . That is, the surface of the left panel 204 facing the internal space Sp1 of the grain tank 2 constitutes the inner side surface 20 (left inner side surface) of the grain tank 2, and the inside of the grain tank 2 is fed from the inlet 21 that opens to the inner side surface 20. A grain is put into the space Sp1.

In this embodiment, the input port 21 is formed in a rectangular shape having a length in the front-rear direction (see FIG. 7 etc.), and the input part 3 covers the entire input port 21 from the outside of the grain tank 2. is fixed to the grain tank 2. That is, as shown in FIG. 4, the insertion part 3 is fixed to the left panel 204 in such a manner that it protrudes outward (to the left) from the left panel 204 . Since the input unit 3 is connected to the upper end of the vertical conveying duct 452, the grains threshed by the threshing unit 43 are (sorted by the sorting unit 44) on the horizontal conveyer 451 and the vertical conveyer 453. It is conveyed (supplied) to the input section 3 through the vertical conveying duct 452 . Therefore, the throwing unit 3 throws the grains threshed by the threshing unit 43 into the grain tank 2 from the throwing port 21 opened on the inner surface 20 of the grain tank 2 .

Specifically, the input section 3 has a rotating body 31 and a cover 32 as shown in FIGS. 5 and 6 . The rotating body 31 is a plate-shaped blade member that rotates around a rotation axis Ax1 (see FIG. 6) along the vertical direction D3. In this embodiment, the rotating body 31 is positioned above the vertical conveyor 453 that is a screw conveyor, and rotates together with the vertical conveyor 453 about the same axis as that of the vertical conveyor 453 . The cover 32 constitutes an outer shell of the input part 3 and forms a space between the input port 21 and the rotating area of the rotating body 31 . In this embodiment, as an example, the cover 32 is formed in a triangular shape in plan view.

With such a configuration, as shown in FIG. 6, the input unit 3 pushes out the grains with the rotating body 31 by rotating the rotating body 31 in one direction (here, counterclockwise direction) R1. toss the grain. Since the rotation area of the rotating body 31 is covered with the cover 32 , the range in which the grain thrown by the rotating body 31 scatters is narrowed down to the inlet 21 side by the cover 32 . As a result, the input unit 3 can input the grain from the input port 21 into the grain tank 2 .

In particular, as shown in FIG. 6, in a plan view, an imaginary straight line VL1 connecting the rear end of the cover 32 and the rotation axis Ax1 of the rotating body 31, and an imaginary straight line VL1 passing through the rear end of the cover 32 and along the inner peripheral surface of the cover 32 , the grain X1 is thrown at least between the virtual straight lines VL1 and VL2. That is, in the internal space Sp1 of the grain tank 2, in the region between the imaginary straight lines VL1 and VL2 in plan view, there is a main path X11 of the grain X1 fed into the grain tank 2 from the feeding port 21 of the feeding unit 3. exists. As described above, in the input unit 3 according to the present embodiment, the grains X1 input from the input port 21 into the grain tank 2 are mainly thrown obliquely rearward to the right from the input port 21 .

Moreover, in this embodiment, a harvest amount sensor 53 is attached to a portion of the cover 32 . Thereby, the harvested amount sensor 53 detects the amount of grains harvested by the harvesting machine 4, that is, the harvested amount (yield), based on the amount of grains fed into the grain tank 2 by the feeding unit 3.

As shown in FIGS. 7 to 10, the quality measuring instrument 1 has a case 11, and the case 11 contains the body of the quality measuring instrument 1 (electrode roller, etc.). The case 11 is formed in a rectangular parallelepiped shape having a length in the vertical direction D<b>3 and constitutes the outer shell of the quality measuring instrument 1 . An intake port 12 is formed in the upper right side of the case 11 , and an outlet 13 is formed in the lower right side of the case 11 . The intake port 12 is an opening for taking grain into the quality measuring instrument 1 . The discharge port 13 is an opening for discharging the quality-measured grain into the grain tank 2 . In the present embodiment, the quality measuring instrument 1 crushes the grain inside to measure the quality of the grain, so the grain taken in from the intake port 12 is crushed in the quality measuring instrument 1, The crushed grains are discharged from the discharge port 13 .

The quality measuring instrument 1 has a pair of take-in rollers 14 projecting rightward from the right side surface of the case 11 . The pair of take-in rollers 14 are positioned directly below the take-in port 12 and operate to take in grains into the take-in port 12 by being rotationally driven. That is, the quality measuring instrument 1 takes in the grain and measures the quality by rotating the pair of take-in rollers 14 . Specifically, spiral ribs are formed on the outer peripheral surface of each take-in roller 14 . When the pair of take-in rollers 14 rotate while the grains are placed above the pair of take-in rollers 14, the grains are taken on the pair of take-in rollers 14 by the ribs of each take-in roller 14. Move to the mouth 12 side (that is, to the left). As a result, when the pair of take-in rollers 14 rotates, the grain is taken into the quality measuring instrument 1 from the take-in port 12, and when the pair of take-in rollers 14 stops, the grain is taken into the quality measuring instrument 1. stops.

Here, the quality measuring instrument 1 is attached to the left panel 204 of the grain tank 2 . The quality measuring instrument 1 is arranged at a position behind and below the inlet 21 (that is, obliquely downward and rearward) in a right side view. Further, in this embodiment, the quality measuring instrument 1 is arranged in a recess 207 recessed leftward in the left panel 204 of the grain tank 2 . That is, the inner surface 20 (left inner surface) of the grain tank 2 is partially recessed by the recess 207 of the left panel 204, and the internal space Sp1 is expanded leftward by the recess 207. there is As an example in the present embodiment, the recess 207 is formed in a trapezoidal shape in plan view (see FIG. 5). The quality measuring instrument 1 is arranged in the grain tank 2 (internal space Sp1) by being fixed to the upper surface (ceiling surface) of the recess 207 with fasteners such as bolts.

As described above, the harvesting machine 4 according to this embodiment includes the threshing section 43 , the grain tank 2 that stores grains, the quality measuring instrument 1 , and the input section 3 . The quality measuring instrument 1 is arranged at a position facing the internal space Sp1 of the grain tank 2 and measures the quality of the grain. The input unit 3 inputs the grains threshed by the threshing unit 43 into the grain tank 2 from the input port 21 opened on the inner surface 20 of the grain tank 2 . Here, the quality measuring instrument 1 is arranged on the same side as the inlet 21 when viewed from the center C1 (see FIG. 5) of the grain tank 2 in the first direction (horizontal direction D1) orthogonal to the vertical direction D3. .

That is, in the present embodiment, the positional relationship between the inlet 21 and the quality measuring instrument 1 in the grain tank 2 is such that both are on the same side when viewed from the center C1 of the grain tank 2 in the first direction. We are hiring. In this embodiment, the first direction is the left-right direction D1, and the inlet 21 is formed on the inner surface 20 (left inner surface) of the left panel 204 . Therefore, in the quality measuring instrument 1 as well, it is arranged on the left panel 204 like the inlet 21 . In other words, the inlet 21 and the quality measuring instrument 1 are both arranged on the same plane (left side) in the left-right direction D1 (first direction) in the internal space Sp1 of the grain tank 2 .

According to this configuration, grains fed into the grain tank 2 from the feeding port 21 are less likely to hit the quality measuring instrument 1 directly. Therefore, there is an advantage that the quality measuring instrument 1 is less likely to be constantly subjected to shock and vibration, and the reliability of the quality measuring instrument 1 is less likely to deteriorate even if the harvesting machine 4 is used for a long period of time. As a result, it is possible to provide the harvesting machine 4 in which the reliability of the quality measuring instrument 1 is less likely to deteriorate.

Further, in the present embodiment, as shown in FIG. 5, in the first direction (horizontal direction D1), the distance L1 from the quality measuring instrument 1 to the center C1 of the grain tank 2 is from the inlet 21 to the center of the grain tank 2. greater than the distance L2 to C1 (L1>L2). That is, since the quality measuring instrument 1 is set back to the left compared to the inlet 21, it is farther than the inlet 21 when viewed from the center line Lc1 passing through the center C1 of the grain tank 2 in plan view. will be located in According to this configuration, there is an advantage that grains fed into the grain tank 2 from the feeding port 21 are less likely to hit the quality measuring instrument 1, and the reliability of the quality measuring instrument 1 is less likely to deteriorate.

By the way, the harvesting machine 4 according to this embodiment further includes a guide member 6 . The guide member 6 is a member that guides grains introduced into the grain tank 2 from the inlet 21 to the quality measuring instrument 1 . By providing such a guide member 6, it is possible to efficiently take the grain into the quality measuring instrument 1 while avoiding the direct contact of the grain input from the input port 21 with the quality measuring instrument 1. be possible.

In the present embodiment, as an example, the guide member 6 is positioned on the path X11 (see FIG. 6) of the grains that are partly thrown into the grain tank 2 from the inlet 21, and directs the colliding grains out of the path X11. guide to. That is, a part of the guide member 6 is arranged on the path X11 of the grains thrown into the grain tank 2 by the throwing unit 3 . As a result, a portion of the grains thrown in (thrown) from the throwing port 21 by the throwing unit 3 collides with a portion of the guide member 6, loses momentum, and is guided out of the path X11. In this configuration, the guide member 6 can guide the grains to the quality measuring instrument 1 by diverting the grains from the path X11, using the momentum of the grains thrown in by the throwing unit 3. .

Specifically, as shown in FIGS. 7 and 8, the guide member 6 has a tubular portion 61 and a holding portion 62 . As an example, the tubular portion 61 is a hollow tubular resin member formed in a cylindrical shape, and both longitudinal end surfaces thereof are open. The holding portion 62 is a member for holding the cylindrical portion 61, and is made of a holding metal fitting, for example. The holding portion 62 holds (supports) the cylindrical portion 61 with respect to the left panel 204 .

Here, the cylindrical portion 61 is held above the pair of take-in rollers 14 in the quality measuring instrument 1 in an oblique posture. In other words, the tubular portion 61 is held in such a posture that it extends obliquely upward and to the right from the pair of take-in rollers 14 while facing the pair of take-in rollers 14 with its lower opening surface. An inlet portion 63 for introducing grains is formed at the upper end portion of the tubular portion 61 . Further, the lower opening surface of the tubular portion 61 facing the pair of take-in rollers 14 constitutes an outlet portion 64 (see FIG. 10) for discharging grains. As a result, the guide member 6 guides the grains introduced into the tubular portion 61 from the inlet portion 63 to the outlet portion 64 through the inside of the tubular portion 61, and the grains are guided from the outlet portion 64 onto the pair of take-in rollers 14. to the

More specifically, in this embodiment, as shown in FIG. 10, the pair of take-in rollers 14 have their leading ends protruding rightward from the concave portion 207, and the outlet portion 64 of the cylindrical portion 61 has a pair of of the take-in roller 14 is arranged to face above the part that protrudes to the right from the concave portion 207 . Therefore, the entrance portion 63 formed at the upper end portion of the cylindrical portion 61 extending obliquely upward and to the right from the pair of take-in rollers 14 is positioned outside (on the right side) of the recess 207 . The inlet portion 63 is formed at the upper end portion of the tubular portion 61 so as to open in a part of the peripheral surface. In the present embodiment, as an example, the entrance portion 63 is formed by partially notching a portion of the cylindrical portion 61 that is obliquely upward and forward. Furthermore, the opening surface of the cylindrical portion 61 on the inlet portion 63 side (upper side) is closed by the holding portion 62 .

The guide member 6 having such a configuration protrudes from the quality measuring instrument 1 toward the center C1 of the grain tank 2 in the first direction (horizontal direction D1). Here, the inlet 21 is located between the tip of the guide member 6 and the quality measuring instrument 1 in the first direction (horizontal direction D1). That is, as shown in FIGS. 6 and 10, the tip of the guide member 6 is located on the right side in the left-right direction D1 (first direction) when viewed from the inlet 21, and the quality measuring instrument 1 is located on the right side in the left-right direction D1 (first direction). direction). According to such a positional relationship, it is possible to guide the grain from the tip of the guide member 6 located on the opposite side in the first direction to the quality measuring instrument 1 when viewed from the inlet 21 .

Also, the quality measuring instrument 1 and the inlet 21 are arranged side by side in a second direction (front-back direction D2) orthogonal to both the up-down direction D3 and the first direction (left-right direction D1). The guide member 6 has an inlet portion 63 that opens toward the inlet 21 side in the second direction (the front-rear direction D2) and introduces grains. That is, in the present embodiment, the quality measuring instrument 1 is positioned behind the inlet 21, and the inlet portion 63 of the guide member 6 opens forward on the inlet 21 side. Therefore, the grains thrown into the grain tank 2 from the inlet 21 are introduced into the tubular portion 61 from the entrance portion 63 of the guide member 6 located on the path X11. Then, the grain introduced into the cylindrical portion 61 falls from the outlet portion 64 onto the pair of intake rollers 14 through the cylindrical portion 61 . In this way the guide member 6 is able to guide the grain to the quality measuring instrument 1 .

Furthermore, the guide member 6 has an outlet portion 64 at a position below the inlet portion 63 and above the grain intake port 12 of the quality measuring instrument 1, and from the inlet portion 63 to the outlet portion 64 configured to allow grain to pass through. Here, the inlet portion 63 is arranged at the same position as the inlet 21 or below the inlet 21 in the vertical direction D3. In the present embodiment, as shown in FIG. 9, the height H1 of the inlet portion 63 in the vertical direction D3 partially overlaps the height H2 of the inlet 21 in the vertical direction D3. That is, a part of the inlet portion 63 is arranged at the same position as the inlet 21 in the vertical direction D3, and the remaining part is arranged below the inlet 21 . According to such a positional relationship between the entrance portion 63 and the input port 21, the grains input into the grain tank 2 from the input port 21 are easily caught at the entrance portion 63, and the quality is measured by the guide member 6. It becomes easier to guide grains to the vessel 1.

By the way, as described above, the grain sensor 54 and the full amount sensor 55 are arranged in the grain tank 2 . In the present embodiment, as an example, both the grain sensor 54 and the full amount sensor 55 detect the grain when the surface facing the internal space Sp1 of the grain tank 2 is pressed under pressure from the grain. sensor. That is, since the grains are gradually deposited in the internal space Sp1 of the grain tank 2, the grain sensor 54 detects the grain when the grain reaches the position of the grain sensor 54. Similarly, when the grain reaches the position of the full amount sensor 55, the full amount sensor 55 detects the full amount.

In this embodiment, the quality measuring instrument 1 stops measuring the quality when the grain sensor 54 detects the grain. In other words, the grain sensor 54 is a sensor that stops the quality measuring instrument 1 and generates a trigger to stop quality measurement. Such a grain sensor 54 is arranged below the grain intake port 12 in the quality measuring instrument 1, as shown in FIG. Here, it is assumed that the detection portion of the grain sensor 54 (the portion that actually has sensitivity) is at the center of the grain sensor 54, and between the center of the grain sensor 54 and the center of the intake port 12, It defines the positional relationship in the vertical direction D3. In this embodiment, as shown in FIG. 9, the grain sensor 54 is located below the inlet 12 by a height H3. According to this configuration, the quality measuring instrument 1 can be stopped before the grains in the grain tank 2 reach the height of the intake port 12 . Therefore, it is possible to avoid excessive intake of grains into the quality measuring instrument 1 by operating the quality measuring instrument 1 in a state where the intake port 12 is buried in the grains, and the grains are clogged in the quality measuring instrument 1.例文帳に追加It is possible to suppress the occurrence of defects such as

Further, a full amount sensor 55 for detecting that the grains have reached a full amount is arranged in the grain tank 2 , and the full amount sensor 55 is arranged above the grain sensor 54 . Here, it is assumed that the detection part of the full amount sensor 55 (the part that actually has sensitivity) is at the center of the full amount sensor 55, and between the center of the full amount sensor 55 and the center of the grain sensor 54, It defines the positional relationship in the vertical direction D3. In this embodiment, as shown in FIG. 9, the full amount sensor 55 is positioned above the inlet 12 by a height H4. Therefore, the full amount sensor 55 is positioned above the grain sensor 54 by the sum of the heights H3 and H4 (H3+H4). According to this configuration, even after the grains in the grain tank 2 reach the height of the grain sensor 54 and the quality measuring instrument 1 stops measuring the quality, the harvesting is continued until the grains reach the full amount. It is possible to continue harvesting operations with the machine 4 .

[3] Modifications Modifications of the first embodiment are listed below. Modifications described below can be applied in combination as appropriate.

The quality measuring instrument 1 may be any device that measures the quality of grains, and the quality to be measured is not limited to the moisture content of grains, for example, protein content, amylose content, or a combination thereof etc.

Also, the configurations of the grain sensor 54 and the full amount sensor 55 are not limited to the above configurations, and may be, for example, sensors of a non-contact type sensor that detects grains, such as an optical sensor.

Moreover, the harvesting machine 4 is not limited to a common combine, but may be a self-throwing combine or a harvesting machine other than a combine.

In addition, the quality measuring instrument 1 may be arranged on the same side as the inlet 21 when viewed from the center C1 of the grain tank 2 in the first direction (horizontal direction D1) orthogonal to the vertical direction D3. is not required to be placed in That is, both the inlet 21 and the quality measuring instrument 1 may be arranged on the right side of the internal space Sp1 of the grain tank 2, which is the same plane in the left-right direction D1 (first direction).

Moreover, it is not essential that the first direction is the left-right direction D1. For example, the first direction may be the front-rear direction D2. In this case, the quality measuring instrument 1 is arranged on the same side as the inlet 21 when viewed from the center C1 of the grain tank 2 in the front-rear direction D2. In other words, the inlet 21 and the quality measuring instrument 1 may both be arranged on the same front surface (or rear surface) in the front-rear direction D2 in the internal space Sp1 of the grain tank 2 .

Also, in the first direction, the distance L1 from the quality measuring instrument 1 to the center C1 of the grain tank 2 is not necessarily greater than the distance L2 from the inlet 21 to the center C1 of the grain tank 2, and the distance L1 is The distance may be L2 or less. Moreover, it is not essential that the grain sensor 54 is arranged below the grain inlet 12 in the quality measuring instrument 1 . Moreover, it is not essential that the full amount sensor 55 is arranged above the grain sensor 54 . In the first place, the grain sensor 54 and the full amount sensor 55 are not essential components of the harvesting machine 4 .

The specific shape, dimensions, etc. of the guide member 6 and the like are not limited to the example shown in the first embodiment. For example, the tubular portion 61 may be square tubular, or the holding portion 62 and the tubular portion 61 may be integrated. The holding portion 62 may hold the tubular portion 61 with respect to the case 11 . In addition, it is essential that the guide member 6 is positioned on the path X11 of the grains that are partly thrown into the grain tank 2 from the inlet 21 and guides the colliding grains out of the path X11. do not have. Moreover, it is not essential that the inlet 21 is positioned between the tip of the guide member 6 and the quality measuring instrument 1 in the first direction. Moreover, it is not essential that the inlet portion 63 of the guide member 6 opens toward the inlet 21 side in the second direction (the front-rear direction D2). Furthermore, it is not essential that the harvesting machine 4 comprises the guide member 6 either.

(Embodiment 2)
A harvesting machine 4A according to the present embodiment differs from the harvesting machine 4 according to the first embodiment in the positional relationship between the grain sensor 54 and the discharge port 13 of the quality measuring instrument 1, as shown in FIG. In the following, configurations similar to those of the first embodiment are denoted by common reference numerals, and descriptions thereof are omitted as appropriate.

In the harvesting machine 4</b>A according to this embodiment, the quality measuring instrument 1 has a discharge port 13 for discharging the quality-measured grains into the grain tank 2 . The discharge port 13 is arranged at the same position as the grain sensor 54 or above the grain sensor 54 in the vertical direction D3. Here, the positional relationship in the vertical direction D3 is defined between the center of the grain sensor 54 and the center of the discharge port 13 . In this embodiment, as shown in FIG. 11, the grain sensor 54 is positioned below the discharge port 13 by a height H5. According to this configuration, the quality measuring instrument 1 can be stopped before the grains in the grain tank 2 reach the height of the discharge port 13 . Therefore, it is possible to suppress the occurrence of problems such as clogging of the outlet 13 of the quality measuring instrument 1 due to operation of the quality measuring instrument 1 in a state where the outlet 13 is buried in grains.

The configuration of the second embodiment can be employed in appropriate combination with the various configurations (including modifications) described in the first embodiment.

Reference Signs List 1 quality measuring instrument 2 grain tank 3 input portion 6 guide member 4, 4A harvesting machine 12 intake port 13 discharge port 20 inner surface 21 input port 43 threshing portion 54 grain sensor 55 full amount sensor 63 inlet portion 64 outlet portion C1 center D1 left-right direction (first direction)
D2 Front-back direction (second direction)
D3 Vertical direction L1, L2 Distance Sp1 Interior space X1 Grain X11 Path

Claims (11)

a threshing section;
a grain tank for storing grain;
A quality measuring instrument arranged at a position facing the internal space of the grain tank and measuring the quality of the grain;
an input unit for inputting the grains threshed in the threshing unit into the grain tank from an input port that opens on the inner surface of the grain tank,
The quality measuring instrument is arranged on the same side as the inlet when viewed from the center of the grain tank in a first direction orthogonal to the vertical direction,
harvesting machinery. In the first direction, the distance from the quality measuring instrument to the center of the grain tank is greater than the distance from the inlet to the center of the grain tank,
A harvesting machine according to claim 1. Further comprising a guide member that guides the grains introduced into the grain tank from the inlet to the quality measuring instrument,
A harvesting machine according to claim 1 or 2. A portion of the guide member is positioned on the path of the grains introduced into the grain tank from the inlet, and guides the collided grains out of the path.
A harvesting machine according to claim 3. The guide member protrudes from the quality measuring instrument toward the center of the grain tank in the first direction,
The inlet is located between the tip of the guide member and the quality measuring instrument in the first direction,
A harvesting machine according to claim 3 or 4. The quality measuring instrument and the inlet are arranged side by side in a second direction orthogonal to both the vertical direction and the first direction,
The guide member has an inlet portion that opens toward the inlet side in the second direction and introduces the grain,
Harvesting machine according to any one of claims 3-5. The guide member has an outlet portion at a position below the inlet portion and above the intake port of the grain in the quality measuring instrument, and the grain from the inlet portion to the outlet portion. is configured to pass through
The inlet is arranged at the same position as the inlet in the vertical direction or below the inlet.
A harvesting machine according to claim 6. The quality measuring instrument stops measuring the quality when the grain is detected by a grain sensor arranged in the grain tank,
Harvesting machine according to any one of the preceding claims. The grain sensor is arranged below the intake port of the grain in the quality measuring instrument,
Harvesting machine according to claim 8. A full amount sensor for detecting that the grain has reached a full amount is arranged in the grain tank,
The full sensor is arranged above the grain sensor,
Harvesting machine according to claim 8 or 9. The quality measuring instrument has a discharge port for discharging the grains whose quality has been measured into the grain tank,
The discharge port is arranged at the same position as the grain sensor in the vertical direction or above the grain sensor,
Harvesting machine according to any one of claims 8-10.

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