JP2017108652A - Retained grain weight measuring device for grain tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a retained grain weight measuring device for a grain tank, capable of accurately measuring the weight of grains.SOLUTION: A retained grain weight measuring device 9 a grain tank 7 comprises a primary storage chamber 90 for storing threshed grains supplied from a grain lifting device 25, and discharging the stored grains at every fixed weight, the grain tank 7 for storing grains discharged from the primary storage chamber 90, and a control device 150 for calculating the weight of the grains stored in the grain tank 7 based on the number of discharge times of the grains from the primary storage chamber 90.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a grain storage weight measuring device for a Glen tank.

  2. Description of the Related Art Conventionally, a grain storage weight measuring device for a so-called Glen tank that measures the weight of stored grain in a Glen tank such as a combine is known (see, for example, Patent Document 1 and Patent Document 2).

  In these grain tank grain storage weight measuring devices, the flow rate (volume) of the grain supplied to the grain tank is measured and converted to weight, or stored in the grain tank by a load cell provided in the grain tank. Sometimes the weight of the processed grain was measured.

JP 2011-167110 A JP 2003-47 A

  However, in the conventional grain storage weight measuring device of the Glen tank, when converting the volume of the kernel into the weight, the conversion value from the volume of the kernel into the weight depending on the state of the kernel such as the moisture content of the kernel, for example. May vary, and the accuracy of the calculated grain weight may not be sufficient.

  In addition, in the conventional grain storage weight measuring device for Glen tanks, errors may occur in the weight measurement values due to the inclination and vibration of the fuselage and the aging of the load cell, and the accuracy of the measured grain weight is sufficient. That wasn't true. Therefore, the conventional grain storage weight measuring device for the Glen tank has room for further improvement in accurately measuring the weight of the grain.

  An object of this invention is to provide the grain storage weight measuring apparatus of the grain tank which can measure the weight of a grain correctly.

  In order to solve the above-described problems and achieve the object, the grain storage weight measuring device of the Glen tank according to claim 1 stores the grain after threshing supplied from the whipping device 25 and stores the grain. The primary storage chamber 90 that discharges the cereal grains for every constant weight, the Glen tank 7 that stores the cereal grains released from the primary storage chamber 90, and the number of times that the cereal grains are released from the primary storage chamber 90 And a control device 150 for calculating the weight of the grain stored in the Glen tank.

  The grain storage weight measuring device for a grain tank according to claim 2 is the grain storage weight measuring device for a grain tank according to claim 1, wherein the primary storage chamber 90 is disposed on the grain tank 7, The main body portion 91 connected to the cerealing device 25, the communication port 7a communicating the Glen tank 7 and the main body portion 91, and the communication port 7a are provided to be openable and closable, and stored in the main body portion 91. A bottom lid 92 that opens the communication port 7a each time the grain reaches the certain weight, and an open / close detector 93 that detects the open / closed state of the bottom lid 92.

  The grain storage weight measuring device for the grain tank according to claim 3 is the grain storage weight measuring device for the grain tank according to claim 2, wherein the control device 150 Is calculated based on the time during which the fixed weight of the kernel is stored in the primary storage chamber 90, and the bottom cover 92 is added to the calculated kernel supply weight per unit time. The grains released from the cerealing device 25 through the primary storage chamber 90 to the grain tank 7 in the state in which the communication port 7a is opened by multiplying the time that the state in which the communication port 7a is opened continues. It is set as the structure which corrects the weight of the grain stored in the glen tank 7 based on the said calculation result.

  The grain storage weight measuring device for a grain tank according to claim 4 is the grain storage weight measuring device for a grain tank according to claim 2, wherein the Glen tank 7 is provided in the mobile body, and the control is performed. The apparatus 150 is configured to calculate a grain supply weight per unit moving distance of the airframe to the primary storage chamber 90, and a distance that the airframe has moved until the fixed weight of the kernel is stored in the primary storage chamber 90. Based on the above, the grain supply weight per unit moving distance is multiplied by the distance moved by the machine body with the bottom lid 92 opening the communication port 7a, thereby the communication port 7a. The weight of the grain discharged from the cerealing device 25 through the primary storage chamber 90 to the Glen tank 7 in the opened state is calculated, and the grain stored in the Glen tank 7 based on the calculation result A configuration to correct the weight.

  The grain storage weight measuring device for a grain tank according to claim 5 is the grain storage weight measuring device for a grain tank according to any one of claims 1 to 4, wherein the grain is stored in the grain tank 7. The controller 150 includes a full detector 71 that detects a full state of the grain, and the control device 150 detects the full state from the state where there is no stored grain in the Glen tank 7 when the full detector 71 detects the full state. Based on the time required to reach the state, the grain increase amount per unit time in the Glen tank is calculated, and the Glen tank 7 is in the full state to the calculated grain increase amount per unit time. By multiplying the elapsed time after reaching the grain tank 7 by calculating the grain weight supplied by the cerealing device 25 after the Glen tank 7 has reached the full state. A configuration to correct the weight of the grain that is stored in the grain tank 7 based on the weight.

  The grain storage weight measuring device for a grain tank according to claim 6 is a grain storage weight measuring device for a grain tank according to claim 4, wherein the grain storage weight measuring device for the grain tank according to claim 4 detects a full state of the grain stored in the grain tank 7. When the full detection unit 71 detects the full state, the control device 150 includes the fuselage until the full state is reached from a state where there is no stored grain in the Glen tank 7. The grain increase amount per unit moving distance in the Glen tank 7 is calculated on the basis of the distance moved, and the Glen tank 7 reaches the full state to the calculated grain increase amount per unit moving distance. By multiplying the distance traveled by the machine body, the grain weight supplied by the cerealing device 25 after the Glen tank 7 reaches the full state is calculated, Based on the grain weight issued a configuration to correct the weight of the grain that is stored in the grain tank 7.

  According to the grain storage weight measuring device for a grain tank according to claim 1, the grain stored in the primary storage chamber is discharged into the grain tank for every constant weight. Thereby, the weight of the grain supplied to the glen tank can be calculated based on the number of times the primary storage chamber has released the grain. Therefore, the exact weight of the grain stored in the Glen tank can be calculated irrespective of the state of the grain such as the moisture content and the variety of the harvested product. Further, it is possible to avoid a situation in which an error occurs in the measurement result of the grain weight due to the inclination, vibration, and aging of the grain tank, and to calculate the exact weight of the grain stored in the grain tank.

  According to the grain storage weight measuring device of the Glen tank according to claim 2, in addition to the effect of the invention according to claim 1, the number of times the primary storage chamber has released the grain by the number of times of opening and closing the bottom cover. It can be measured. Therefore, it is possible to accurately calculate the weight of the grains stored in the Glen tank with a simple configuration.

  According to the grain storage weight measuring device for a grain tank according to claim 3, in addition to the effect of the invention according to claim 2, the weight of the grain stored in the grain tank can be corrected. Specifically, the grain from the cerealing device may be supplied to the primary storage chamber even when the bottom lid is “open”. In this case, the grain supplied to the primary storage chamber passes through the primary storage chamber and is released into the Glen tank without being stored in the primary storage chamber by the bottom lid. Therefore, when calculating the weight of the grain based on the number of times the bottom cover is opened and closed, the weight of the grain is not included because the weight of the grain supplied to the primary storage chamber is not included when the bottom cover is in the “open” state. May be estimated to be less than actual. However, when the bottom cover is in the “open” state, the weight of the grain supplied to the primary storage chamber (released into the Glen tank) is calculated based on the amount of grain increase per unit time in the primary storage chamber and the bottom cover “open”. The weight of the grain stored in the Glen tank can be calculated more accurately by correcting the calculation result obtained by multiplying the time during which the state “is continued”.

  According to the grain storage weight measuring device for a grain tank according to claim 4, in addition to the effect of the invention according to claim 2, the weight of the grain stored in the grain tank can be corrected. Specifically, the grain from the cerealing device may be supplied to the primary storage chamber even when the bottom lid is “open”. In this case, the grain supplied to the primary storage chamber passes through the primary storage chamber and is released into the Glen tank without being stored in the primary storage chamber by the bottom lid. Therefore, when the weight of the grain is calculated based only on the number of times the bottom cover is opened and closed, the weight of the grain supplied to the primary storage chamber in the state where the bottom cover is “open” is not included. There is a possibility to estimate the weight less than it actually is. However, when the bottom cover is in the “open” state, the weight of the grain supplied to the primary storage chamber (released into the Glen tank) is changed to the grain supply weight per unit movement distance of the fuselage in the primary storage chamber. The weight of the grain stored in the Glen tank can be calculated more accurately by correcting with the calculation result obtained by multiplying the distance traveled by the aircraft in the “open” state.

  According to the grain storage weight measuring device for a grain tank according to claim 5, in addition to the effect of the invention according to any one of claims 1 to 4, the grain after the grain tank reaches a full state The weight of the grains stored in the tank can be corrected. Specifically, when the grain tank is filled with the supplied grain, the grain accumulated in the grain tank may hinder the release of the grain from the primary storage chamber to the grain tank. There is. However, after the full detector detects the full condition of the Glen tank, the weight of the grain stored in the Glen tank is changed to the increase of the grain per unit time in the Glen tank after the Glen tank reaches the full condition. If it correct | amends by the calculation result which multiplied the time which did it, it will become possible to calculate the weight of a grain, without depending on the frequency | count of discharge | release of the grain of a primary storage chamber. Therefore, the weight of the grain stored in the Glen tank after the Glen tank reaches the full state can be corrected.

  According to the grain storage weight measuring device of the Glen tank according to claim 6, in addition to the effect of the invention according to claim 4, the grain stored in the Glen tank after the Glen tank reaches a full state The weight of the grain can be corrected. Specifically, when the grain tank is filled with the supplied grain, the grain accumulated in the grain tank may hinder the release of the grain from the primary storage chamber to the grain tank. There is. However, after the full detector detects the full condition of the Glen tank, the weight of the stored grain in the Glen tank is increased to the amount of grain increase per unit movement distance of the aircraft in the Glen tank, after the Glen tank reaches the full condition. If correction is made based on the calculation result obtained by multiplying the distance traveled by the airframe, the weight of the kernel can be calculated without depending on the number of kernels released from the primary storage chamber. Therefore, the weight of the grain stored in the Glen tank after the Glen tank reaches the full state can be corrected.

FIG. 1 is a schematic left side view of a combine. FIG. 2 is an explanatory diagram of the internal structure of the threshing apparatus. FIG. 3 is a schematic plan view of the threshing apparatus. FIG. 4 is an AA arrow view in FIG. 5 is a BB arrow view in FIG. FIG. 6 is a CC arrow view in FIG. FIG. 7 is a block diagram relating to a control system of the grain storage weight measuring device of the Glen tank. FIG. 8A is an explanatory diagram of a method for correcting the grain supply amount (part 1) in a state where the bottom lid is “open”. FIG. 8B is an explanatory diagram of a grain supply amount correction method (part 2) in a state where the bottom cover is “open”. FIG. 9A is an explanatory diagram of a yield correction method (part 1) when the Glen tank is full. FIG. 9B is an explanatory diagram of a yield correction method (part 2) when the Glen tank is full. FIG. 10 is a flowchart showing a processing procedure of grain yield calculation. FIG. 11 is a flowchart showing a processing procedure for correcting the cumulative yield based on the movement distance. FIG. 12 is a flowchart showing a processing procedure for calculating each correction value. FIG. 13 is a flowchart showing a procedure for updating the correction value based on the movement distance. FIG. 14 is a schematic cross-sectional view of a primary storage chamber according to a modification (part 1). FIG. 15: is a schematic sectional drawing of the primary storage chamber which concerns on a modification (the 2).

  Hereinafter, an embodiment of a grain storage weight measuring device for a grain tank disclosed in the present application will be described in detail with reference to the accompanying drawings. Moreover, below, the case where the grain storage weight measuring apparatus of a Glen tank is provided in the combine which stores the grain obtained from the harvested grain straw in a Glen tank is demonstrated to an example. However, the present invention is not limited to this, and the grain storage weight measuring device of the Glen tank is provided in a work vehicle that performs other work, or measures the weight of grain stored in a grain tank such as a silo, for example. Also good. In addition, this invention is not limited by embodiment shown below. The constituent elements described below include those that can be easily assumed by those skilled in the art and those that are substantially the same. Furthermore, the constituent elements described below can be appropriately combined. In addition, various omissions, substitutions, or changes of the components can be made without departing from the scope of the present invention.

  In the following, for convenience of explanation, as shown in the figure, the three directions orthogonal to each other are respectively defined as the front-rear direction, the left-right direction, and the up-down direction, and the configuration of each part will be described according to this definition. The front-rear direction is the length direction of the combine 1, the left-right direction is the width direction, and the up-down direction is the height direction. Of these, the forward direction is the direction of travel of the combine 1 during the mowing operation, the left side is the left-hand direction toward the front, the right side is the right-hand direction toward the front, and the lower side is gravity. Direction. Note that these directions are merely set for convenience in order to make the explanation easy to understand.

<Overall configuration of combine>
As shown in FIG. 1, the combine 1 includes a traveling device 3 and a threshing device 5 attached to the body frame 2. The traveling device 3 transmits power from a power generation source (engine) mounted on the combine 1 to the pair of left and right crawler belts 4 to cause the combine 1 to travel. The cutting device 6 is attached to the front side of the combine 1, that is, the direction side from the driver's seat 8A toward the operating device 8B.

  At the side of the threshing device 5, a grain tank 7 for temporarily storing the grains threshed by the threshing device 5 is disposed. On the rear side of the Glen tank 7, a grain scale and a discharge device 7Y are provided. The grain discharging device 7Y is a device having a spiral axis inside a cylinder. When the above-mentioned spiral shaft rotates, the grain in the Glen tank 7 is conveyed and discharged to the outside of the Glen tank 7. Next, the threshing apparatus 5 will be described.

<Threshing device>
The threshing apparatus 5 is an apparatus that separates grains (threshing) from the grains that are harvested by the harvesting apparatus 6 shown in FIG. 1 and separates impurities such as straw from the grains. As shown in FIG. 2, the threshing device 5 has a cereal supply device 9 </ b> A disposed on the side opposite to the side on which the Glen tank 7 (see FIG. 1) is disposed. As shown in FIG. 3, the cereal supply device 9 </ b> A includes a pincer 9 </ b> B and a supply conveyance chain 9 </ b> C. The cereal supply device 9A sandwiches the culm harvested by the reaping device 6 between the nip 9B and the supply transport chain 9C, and supplies the threshing device 5 while being transported to the threshing device 5 by the supply transport chain 9C.

  The cereal (removal) after passing the threshing device 5 and handling the cereal is disposed at the rear part of the combine 1 by the sewage transfer devices 22A and 22B disposed behind the cereal supply device 9A. Then, it is conveyed to the waste cutting device 23. The waste cutting device 23 includes a plurality of rotary blades 23A and 23B, and the waste thrown into the waste cutting device 23 from the waste transporting devices 22A and 22B is cut between the rotary blades 23A and 23B. , Released to the field.

  As shown in FIG. 2, the threshing device 5 includes a threshing unit 5A and a selection unit 5B. The threshing unit 5A includes a handling chamber 5D, a second processing chamber 5P (see FIG. 3), and a dust removal processing chamber 5W (see FIG. 3). The sorting unit 5 </ b> B includes a sorting shelf (swinging sorting shelf) 18, a red pepper 13, a dust exhaust fan 24 as dust discharging means, a first recovery unit 19, and a second recovery unit 21.

  The sorting unit 5B is disposed below the threshing unit 5A. The threshing unit 5A sheds the grain from the tip of the cereal. The sorting unit 5B removes impurities from the object to be processed (hereinafter, referred to as an object to be processed) including the grain that has been threshed by the threshing part 5A, and collects the grain. Here, a to-be-processed object is corresponded to what the handling cylinder 10 of the threshing apparatus 5 threshed from the cereal.

<Threshing part>
First, the threshing unit 5A will be described. The handling chamber 5D, the second processing chamber 5P, and the dust removal processing chamber 5W of the threshing unit 5A are spaces surrounded by the casing 5C of the threshing device 5. A handling cylinder 10 is arranged inside the handling chamber 5D. The handle 10 is a cylindrical structure, and a plurality of teeth 10B extend outward in the radial direction from the outer peripheral surface. The handling cylinder 10 is a rotating body that rotates around a rotation axis Zr shown in FIG. The handling cylinder 10 is driven to rotate by the power extracted from the power generating means of the combine 1 shown in FIG.

  As shown in FIG. 2, a handling net 11 is disposed below the handling cylinder 10. Specifically, as shown in FIG. 5, the handling net 11 surrounds the outside of the handling cylinder 10 from below the handling cylinder 10 to above the second processing chamber 5P. The handling net 11 removes the swarf having a large grain size included in the processing object that has been threshed by the handling cylinder 10, and drops the grain included in the processing object, the swarf having a small size, and the like to the sorting unit 5B.

  The second treatment chamber 5P and the dust removal treatment chamber 5W are disposed on the right side (first side portion side) of the threshing device 5. The first side portion is a direction in which the sorting shelf 18 of the sorting unit 5B described later transports the object to be processed (transfer direction, a direction indicated by an arrow M in FIGS. 2 and 3, that is, a direction from the front to the rear). One side of the intersecting direction. The dust removal processing chamber 5W is disposed behind the second processing chamber 5P. The second processing chamber 5P transfers the object to be processed from the rear to the front.

  A second processing cylinder 29 is disposed in the second processing chamber 5P, and a dust exhausting cylinder 30 is disposed in the dust processing chamber 5W. Each of the second processing drum 29 and the dust exhausting processing drum 30 is a cylindrical structure, and a plurality of processing teeth extend from the respective outer peripheral surfaces toward the radially outer side. In the present embodiment, the second processing drum 29 and the dust removal processing drum 30 are an integral structure, and both rotate.

  The rotation axes of the second processing cylinder 29 and the dust removal processing cylinder 30 are axes parallel to the rotation axis Zr of the handling cylinder 10. The second processing drum 29 and the dust removal processing drum 30 are driven and rotated by the power extracted from the power generating means of the combine 1 shown in FIG.

  The object to be processed collected by the second collecting unit 21 of the sorting unit 5B described later is transferred to the second processing chamber 5P. The object to be processed collected by the second collection unit 21 is transferred to the right by the second collection device 22, and then transferred upward by the second reduction device 26 (see FIGS. 3 and 5). It is carried into the room 5P. The second processing cylinder 29 in the second processing chamber 5P, in the process of rotating, removes the grains contained in the object to be processed collected by the second collection unit 21 and the branch branches (fine branches) attached to the grains. It separates and returns to the sorting shelf 18 (the transfer shelf 18T described later) from the front discharge port provided in front of the second processing chamber 5P.

  As shown in FIG. 4, a part of the dust removal processing chamber 5W communicates with the vicinity of the rear end of the handling chamber 5D through the communication portion T. Large swarf (including a small amount of grain) that has not passed through the handling net 11 moves from the communication portion T to the dust disposal chamber 5W. The object to be processed moving to the dust collection chamber 5W is discharged onto the sorting shelf 18 at the rear part of the dust collection chamber 5W. The grains in the object to be processed leak from the sorting shelf 18 and fall to the second recovery unit 21.

<Selection part>
Next, the selection unit 5B will be described. As shown in FIG. 2, the sorting unit 5B includes a wind selection chamber 5S for wind-selecting grains and foreign matters by blowing air from the tang 13 or the like below the threshing unit 5A. The sorting unit 5B sorts the grains from the object to be processed from the threshing unit 5A by the swinging motion of the sorting shelf 18, the sorting wind by the red pepper 13, and the suction action by the dust exhaust fan 24. The sorting shelf 18 of the sorting unit 5B is built in the wind sorting chamber 5S, and is driven by the power extracted from the power generating means of the combine 1 shown in FIG.

  The sorting shelf 18 includes a front first sheave 15, a front second sheave 16, and a rear sheave 17 that are provided in order from the front to the rear. The front side first sheave 15 and the front side second sheave 16 sort the grains from the grains and foreign substances contained in the workpiece dropped from the handling net 11 and fall to the first recovery part 19 or the second recovery part 21. Let The rear sheave 17 sorts the grains from the grains contained in the object to be processed discharged from the dust processing chamber 5W and the cut waste and drops them to the second recovery unit 21.

  As shown in FIG. 2, the transfer shelf 18 </ b> T is disposed above the tang cover 13 </ b> C. The transfer shelf 18T transfers an object to be processed falling from the handling net 11 toward the front first sheave 15 disposed on the lower side in the transfer direction of the transfer shelf 18T.

  As shown in FIG. 2, the fine sorting screen 12 is disposed below the front sheave, that is, the front first sheave 15 and the front second sheave 16. The fine sorting screen 12 is a finer mesh than the handling screen 11. The fine sorting net 12 passes through the front first sheave 15 or the front second sheave 16 and passes the grain from the object to be treated from which foreign substances (mainly small shavings having a low specific gravity) have been removed, and is the most recovered part. Drop to 19. Most of the grains that pass through the fine sorting screen 12 are fine grains. Here, the fresh grain refers to a grain of only cocoons to which no branch stems are attached.

  Next, the Kara 13 will be described. By rotating, the red pepper 13 sends a wind (sorting wind) toward the sorting shelf 18. By the wind sent from the Kara 13, the grains are subjected to specific gravity selection from the processed material that has passed through the threshing portion 5 </ b> A. The red pepper 13 is driven to rotate by the power extracted from the power generating means of the combine 1 shown in FIG. FIG. 2 shows an example of the flow direction of the above-described sorting wind as an arrow WD.

  A flapper 14 as a wind guide plate is provided in a portion where the tang 13 blows out the sorting air. The flapper 14 changes the direction of the sorting air sent from the tang 13 and sends it to the sorting shelf 18. That is, the flapper 14 is provided on the upstream side in the flow direction (blowing direction) of the sorting air sent from the tang 13 (however, downstream of the tang 13 in the blowing direction of the sorting air), It changes between the site | part of the upper side in the transfer direction in the sorting shelf 18, and the site | part of the lower side.

<First collection department>
Next, the first recovery unit 19 will be described. As shown in FIG. 2, the first recovery unit 19 includes a first recovery shelf 19 </ b> L and a first recovery device 20. The first recovery shelf 19L and the first recovery device 20 are disposed below the sorting shelf 18 and the fine sorting screen 12. As shown in FIG. 2, the first recovery shelf 19 </ b> L is provided to be inclined upward toward the lower side of the transfer direction M, that is, toward the sorting shelf 18. The first collection shelf 19 </ b> L is provided such that the shelf tip faces the rear sheave 17.

  The first recovery device 20 is arranged at the bottom of the first recovery shelf 19L. As shown in FIG. 4, the first recovery device 20 is a spiral shaft extending in the left-right direction. Moreover, in FIG. 4, the cross section in AA of FIG. 3, the 1st collection | recovery apparatus 20, the 1st cerealing apparatus 25, and the 1st cerealing cylinder 25T are shown on the same drawing for convenience of explanation. .

  The first recovery device 20 is driven to rotate by the power extracted from the power generation means of the combine 1 shown in FIG. The first recovery device 20 rotates to transfer the grain stored at the bottom of the first recovery shelf 19L to the right (the side of the Glen tank 7 shown in FIG. 1).

  As shown in FIG. 4, the end portion on the right side of the first recovery device 20 is disposed so as to face one end portion of the first cerealing device 25. The first cerealing device 25 shown in FIGS. 3 and 4 is arranged inside a cylindrical first cerealing cylinder 25T which is a spiral shaft. The end of the first recovery device 20 on the dust disposal chamber 5W side and the first end of the first cerealing device 25 are connected via, for example, a bevel gear, and when the first recovery device 20 rotates, the first cerealing device. 25 also rotates. Moreover, as for the 1st collection | recovery apparatus 20 and the 1st cerealing apparatus 25, each rotating shaft is mutually orthogonally crossed.

  The grain transferred to the dust removal processing chamber 5W side by the first recovery device 20 is transferred upward by the first cerealing device 25 and supplied into the Glen tank 7 shown in FIG. Is done.

<Kernel storage weight measuring device>
Next, the grain storage weight measuring device 9 will be described with reference to FIG. 6 is a cross-sectional view taken along the line CC in FIG. 3 and schematically shows a cross section taken along the line CC in FIG. In addition, in FIG. 6, an example of the grain supplied to the glen tank 7 from the first cerealing device 25 via the primary storage chamber 90 is schematically shown as a grain GP. Further, in FIG. 6, a bottom cover 92 that rotates around the axis AXb shown in FIG. For convenience of explanation, FIG. 6 shows the control device 150 in addition to the cross section taken along the line CC in FIG. 3, but the position where the control device 150 is provided is not limited.

  The control device 150 is connected to the primary storage chamber 90 so as to be communicable with the primary storage chamber 90. The control device 150 calculates the number of times the bottom lid 92 is opened / closed based on the detection result of the bottom lid sensor 93, and integrates the weight of the grains stored in the glen tank 7 based on the number of times of opening / closing. And the grain storage weight measuring device 9 is comprised including the control apparatus 150 and the primary storage chamber 90 at least. Details of the control device 150 will be described later with reference to FIG.

  As shown in FIG. 6, the primary storage chamber 90 is provided on the upper surface of the Glen tank 7 and includes a main body portion 91, a bottom lid 92, and a bottom lid sensor 93. The main body 91 is supplied with the grains to be transferred while moving up the first cereal cylinder 25T (see arrow 102 in FIG. 6) (see arrow 104 in FIG. 6). The inside of the main body 91 communicates with the inside of the Glen tank 7 through an opening 7 a provided on the side wall of the Glen tank 7. That is, the opening 7 a is a communication port that communicates the primary storage chamber 90 and the Glen tank 7.

  The bottom lid 92 is provided so that the opening 7a can be opened and closed. Hereinafter, a state where the bottom lid 92 does not block the opening 7a may be referred to as an “open” state, and a state where the opening 7a is blocked may be referred to as a “closed” state. In the present embodiment, the bottom lid 92 is provided so as to be rotatable about an axis AXb extending in the front-rear direction, and upward (see an arrow 106 in FIG. 6) due to a tension of a “torsion spring” (not shown) provided around the axis AXb. ).

  By urging the bottom lid 92 upward by the torsion spring in this way, when the weight of the grain supplied to the main body 91 reaches a predetermined value, the bottom lid 92 is lowered by the weight of the grain ( 6), the opening 7a is opened. That is, since the main body 91 and the Glen tank 7 communicate with each other, the grains stored in the main body 91 are discharged into the Glen tank 7 (see arrow 110 in FIG. 6). When the release of the grains in the primary storage chamber 90 into the grain tank 7 is completed, the bottom lid 92 rotates upward (see the arrow 106 in FIG. 6) and returns to the state where the opening 7a is closed. .

  The bottom lid sensor 93 is, for example, a limit switch that detects the open / closed state of the bottom lid 92 and is provided in the main body 91. In FIG. 6, a state in which the contact 94 of the bottom lid sensor 93 is in contact with the bottom lid 92 in a state where the bottom lid 92 is “closed” is indicated by a solid line. The bottom cover sensor 93 may be a position sensor that detects the rotation angle of the bottom cover 92 around the axis AXb.

  Here, conventionally, the weight of the grain supplied to the Glen tank is calculated by measuring the flow rate of the grain supplied to the Glen tank with a flow meter and converting the measured flow rate (volume) into a weight. There was something to do. In this case, it may be difficult to calculate an accurate weight due to variations in the moisture content of the grain.

  Moreover, conventionally, the weight of the grain stored in the Glen tank may be measured by, for example, a load cell provided in the Glen tank. In this case, there was a possibility of errors due to the inclination and vibration of the fuselage and the aging of the load cell

  However, according to the primary storage chamber 90 of the grain storage weight measuring device 9 of the grain tank 7 according to the present embodiment, the grains stored in the primary storage chamber 90 are discharged into the Glen tank 7 for every constant weight. To do. Thereby, the weight of the grain supplied to the glen tank 7 can be calculated by measuring the number of times the grain has been released from the primary storage chamber 90, that is, the number of times the bottom lid 92 has been opened and closed. Therefore, the exact weight of the grain in the Glen tank 7 can be calculated irrespective of the state of the grain such as the moisture content and the variety of the harvested product. Further, it is possible to avoid a situation in which an error occurs in the measurement result of the grain weight due to the inclination and vibration of the combine 1 and the load cell aging, and to calculate the exact weight of the grain stored in the Glen tank 7. it can.

  Moreover, in the grain storage weight measuring device 9 of the Glen tank 7 according to the present embodiment, the primary storage chamber 90 is provided outside the Glen tank 7. Thereby, the exact weight of the grain stored in the grain tank 7 can be calculated without affecting the grain capacity in the grain tank 7. Furthermore, in the grain storage weight measuring device 9 of the Glen tank 7 according to the present embodiment, the primary storage chamber 90 is provided on the Glen tank 7. Thereby, it is possible to release the grain from the primary storage chamber 90 to the grain tank 7 only by dropping the grain when the bottom cover 92 is “open”. Therefore, the grain storage weight measuring device 9 can be configured with a simple configuration.

<Full sensor>
Next, the full sensor 71 of the Glen tank 7 will be described. As shown in FIG. 6, the Glen tank 7 is provided with a full sensor 71. The full sensor 71 is an optical sensor, for example, and detects an obstacle in the left-right direction at a predetermined height in the Glen tank 7. In FIG. 6, the detection line of the optical sensor (full sensor 71) is indicated by a dotted line as a detection line L71.

  Moreover, as shown in FIG. 6, it is preferable to provide the full sensor 71 so that the detection line L71 is positioned in the vicinity of the lower end of the bottom lid 92 when the grain is discharged into the grain tank 7. As a result, it is possible to detect the maximum height at which the upper surface of the grain stored (deposited) in the Glen tank 7 can hinder the rotation of the bottom lid 92. Therefore, in the range where the full sensor 71 does not detect the full state of the Glen tank 7, the rotation of the bottom lid 92 is not hindered, so the exact weight of the grains in the Glen tank 7 is based on the number of times the bottom lid 92 is opened and closed. Can be calculated. A method for correcting the grain yield after the full sensor 71 detects the full state of the Glen tank 7 will be described later with reference to FIGS. 9A and 9B.

  In addition to the full sensor 71, a plurality of sensors (for example, the optical sensor described above) may be provided at intervals in the vertical direction. Thereby, the presence or absence of the accumulated grain can be detected at a plurality of positions in the vertical direction, and the detection accuracy of the upper surface of the accumulated grain can be improved.

<Control device>
Next, the control apparatus 150 which the grain storage weight measuring apparatus 9 of the grain tank 7 which concerns on this embodiment has is demonstrated using FIG. FIG. 7 is a block diagram relating to the control system of the grain storage weight measuring device 9 of the Glen tank 7. In FIG. 7, only the components necessary for the description of the grain storage weight measuring device 9 of the Glen tank 7 are shown, and descriptions of general components are omitted. In the description using FIG. 7, the internal configuration of the control device 150 will be mainly described, and the description of various devices already shown in FIGS. 1 to 6 may be simplified.

  The control device 150 is a controller that controls the operation of various connected devices, and includes a processing unit having a CPU (Central Processing Unit) and the like, a storage unit such as a ROM (Read Only Memory) and a RAM (Random Access Memory), Furthermore, an input / output unit is provided, which are connected to each other and can pass signals to each other. A computer program for controlling the combine 1 is stored in the storage unit. Further, the controller 150 is connected to the controller 8B and various sensors. Based on the operation input from the controller 8B and the detection results input from the various sensors, the control device 150 passes through the primary storage chamber 90 to the Glen tank 7. Calculate the weight of the supplied grain.

  As shown in FIG. 7, the control device 150 includes a bottom cover sensor 93, a full sensor 71, a yield display switch 161, a yield record switch 162, a cutting height position sensor 163, a wheat straw sensor 164, Signals from the clutch release sensor 165, the discharge clutch sensor 166, the main transmission lever 167, the parking pedal sensor 168, the vehicle speed sensor 169, and the engine rotation sensor 170 are input. In addition, the control device 150 outputs a signal toward the external communication unit 171, the monitor 172, the cutting up valve 173, and the cutting down valve 174.

  The bottom lid sensor 93 is provided in the primary storage chamber 90 and detects the open / closed state of the bottom lid 92. The full sensor 71 is provided inside the Glen tank 7 and detects the upper surface of the grain stored in the Glen tank 7.

  The yield display switch 161 is a switch for turning on and off the display of the weight (ie, yield) of the grains stored in the Glen tank 7 on the monitor 172. The yield recording switch 162 is a switch for turning on and off the calculation of the yield by the control device 150. Here, the monitor 172 is a display unit (including a touch panel) of a portable terminal such as a tablet PC, a smartphone, or a personal computer, and is connected to an external communication unit 171 described later via a communication line such as a CAN (Controller Area Network). The Note that the above CAN includes not only wired communication but also wireless communication. The yield display switch 161 and the yield recording switch 162 may be provided on the operation panel of the operation device 8B, but may be a touch-type switch display on the touch panel.

  The cutting height position sensor 163 detects the elevation height position of the cutting unit of the cutting device 6. A cutting up valve 173 and a cutting down valve 174 are connected to the output side of the control device 150. The mowing raising valve 173 and the mowing lowering valve 174 control oil feeding to the elevating cylinder that moves the mowing device 6 up and down. The control device 150 controls the cutting up valve 173 and the cutting down valve 174 based on the input from the cutting height position sensor 163 to keep the cutting height above a predetermined value.

  The culm sensor 164 detects the culm that is transported by the supply transport chain 9C (see FIG. 3). The mowing / detaching clutch sensor 165 determines a transmission state or an interrupting state of the mowing / decoupling clutch that transmits and interrupts the driving force from the engine of the combine 1 to the threshing device 5 and the mowing device 6, respectively. The discharge clutch sensor 166 determines a transmission state or a cut-off state of the discharge clutch that transmits and cuts the driving force from the combine 1 engine to the grain discharge device 7Y.

  The main transmission lever 167 (see FIG. 1) is a lever that is provided on the operation panel of the operation device 8B and operates a hydraulic continuously variable transmission (not shown) that changes the power of the engine of the combine 1. An example of such a hydraulic continuously variable transmission is a hydrostatic continuously variable transmission called HST (Hydro Static Transmission). The main transmission lever 167 is operated so as to be in a predetermined operation position including a forward position that instructs the forward movement of the combine 1, a backward position that instructs backward movement, and a neutral position that does not instruct forward and backward movement.

  Parking pedal sensor 168 detects the presence or absence of a brake operation of a parking brake (not shown) provided at the foot of driver's seat 8A (see FIG. 1). The parking brake stops traveling of the combine 1 by returning the main transmission lever 167 to the neutral position and braking the traveling device 3 when a brake operation is performed by the operator. The vehicle speed sensor 169 detects the traveling speed of the combine 1. The engine rotation sensor 170 detects the rotation speed of the combine 1 engine. The external communication unit 171 is configured to be communicable with the portable terminal described above, and includes an antenna capable of wireless communication with a weather information terminal and a soil information terminal installed in the farm field, and receives information regarding the state of the farm field.

<Yield correction method when the bottom cover is open>
By the way, the grain from the first cerealing device 25 may be supplied to the primary storage chamber 90 even when the bottom lid 92 is “open”. In this case, the grain supplied to the primary storage chamber 90 passes through the primary storage chamber 90 and is supplied into the Glen tank 7 without being stored in the primary storage chamber 90 by the bottom lid 92. Therefore, when the yield of the grain is calculated based on the number of times the bottom cover 92 is opened and closed, the weight of the grain supplied to the primary storage chamber 90 when the bottom cover 92 is “open” is not included. May be estimated to be less than actual.

  Therefore, in the grain storage weight measuring device 9 of the Glen tank 7 according to the present embodiment, the weight of the grain supplied to the primary storage chamber 90 (Glen tank 7) is corrected when the bottom lid 92 is “open”. Therefore, it was decided to calculate the grain yield more accurately. Hereinafter, correction methods (part 1) and (part 2) of the grain supply amount in a state where the bottom lid 92 is “open” will be described with reference to FIGS. 8A and 8B.

  First, the grain supply amount correction method (part 1) in a state where the bottom lid 92 is “open” will be described with reference to FIG. 8A. FIG. 8A is an explanatory diagram of a grain supply amount correction method (part 1) in a state where the bottom lid 92 is “open”. Such a correction method is based on the supply amount of the grain per unit time calculated from the time from when the bottom cover 92 is closed until a certain weight of the grain is stored in the primary storage chamber 90 until the next opening, to the bottom cover 92. The weight of the grain stored in the Glen tank 7 is corrected based on the calculation result obtained by multiplying the time during which the “open” state continues.

  The vertical axis of the graph shown in FIG. 8A indicates the amount of grain supplied to the Glen tank 7 and the ON / OFF of the bottom lid sensor 93, and the horizontal axis indicates time. Note that the ON of the bottom lid sensor 93 corresponds to the “closed” state of the bottom lid 92, and the OFF of the bottom lid sensor 93 corresponds to the “open” state of the bottom lid 92. In addition, the bottom lid sensor 93 is switched from OFF to ON at time Tn shown in FIG. 8A. In FIG. 8A, for convenience of explanation, the grain of weight Wn, which is the amount of grain released once in the primary storage chamber 90, is shown as being supplied to the Glen tank 7 at a time Tn + 1. .

  At time Tn, when the bottom lid sensor 93 is turned on (that is, the bottom lid 92 is “closed”), the storage of the grain in the primary storage chamber 90 starts. At time Tn + 1, when the weight of the grain in the primary storage chamber 90 reaches a predetermined value (see the weight Wn in FIG. 8A), the bottom cover sensor 93 is turned off (that is, the bottom cover 92 is “open”). The grains in the primary storage chamber 90 are discharged to the Glen tank 7.

  Thereby, the control device 150 calculates that the grain of “time correction value” (Wn / (Tn + 1−Tn)), which is the weight per unit time, is supplied to the primary storage chamber 90. Therefore, the grain of weight ΔWTn = (WTn / (Tn + 1−Tn)) × (Tn + 2−Tn + 1) is stored in the primary storage chamber 90 during the period when the bottom lid sensor 93 is OFF, that is, from time Tn + 1 to time Tn + 2. Without calculating, it supplied that it passed through the primary storage chamber 90 and was supplied to the Glen tank 7, and correct | amends the yield of a grain based on this calculated value. Specifically, the calculated value (weight ΔWTn) is added to the grain yield. Hereinafter, the period in which the bottom lid sensor 93 is OFF (that is, the bottom lid 92 is “open”) may be referred to as “correction time”.

  Next, a method (part 2) for correcting the grain supply amount in a state where the bottom lid 92 is “open” will be described with reference to FIG. 8B. FIG. 8B is an explanatory diagram of a grain supply amount correction method (part 2) in a state where the bottom lid 92 is “open”. Such a correction method is such that the supply amount per unit moving distance of the grain calculated from the moving distance of the combine 1 from when the bottom cover 92 is closed until a certain weight of the grain is stored in the primary storage chamber 90 and then opened. In addition, the weight of the grain stored in the Glen tank 7 is corrected by the calculation result obtained by multiplying the distance traveled by the combine 1 with the bottom lid 92 in the “open” state. In FIG. 8A, for convenience of explanation, the grain of weight Wn, which is the amount of grain released once in the primary storage chamber 90, is shown as being supplied to the Glen tank 7 at a moving distance Ln + 1. Yes.

  Hereinafter, except for the fact that the horizontal axis of the graph shown in FIG. 8B is the movement distance of the combine 1, the method is the same as the yield correction method (part 1) in the state in which the bottom lid 92 is already opened using FIG. Because of this, duplicate descriptions are omitted.

  When the bottom cover sensor 93 is turned on (that is, the bottom cover 92 is “closed”) at the movement distance Ln, the storage of the grain in the primary storage chamber 90 starts. When the weight of the grain in the primary storage chamber 90 reaches a predetermined value (see the weight Wn in FIG. 8B) at the movement distance Ln + 1, the bottom lid sensor 93 is turned off (that is, the bottom lid 92 is “open”). Thus, the grains in the primary storage chamber 90 are discharged to the Glen tank 7.

  Thereby, the control device 150 calculates that the grain of “distance correction value” (Wn / (Ln + 1−Ln)), which is the weight per unit moving distance, is supplied to the primary storage chamber 90. Therefore, the grain of weight ΔWLn = (Wn / (Ln + 1−Ln)) × (Ln + 2−Ln + 1) is obtained at the distance traveled by the combine 1 during the period when the bottom lid sensor 93 is OFF, that is, from the travel distance Ln + 1 to the travel distance Ln + 2. It is calculated that the primary storage chamber 90 has not been stored in the primary storage chamber 90 and has been discharged to the grain tank 7, and the grain yield is corrected based on the calculated value. Specifically, the calculated value (weight ΔWLn) is added to the grain yield. In the following, the distance that the combine 1 has moved while the bottom lid sensor 93 is OFF may be referred to as a “correction distance”.

  The calculation of the correction time and the correction distance described above may be based on the previous open / closed state of the primary storage chamber 90 rather than the “open” state of the primary storage chamber 90 to be corrected. It is preferable to be based on the open / closed state of the storage chamber 90. This makes it possible to calculate a time correction value and a distance correction value based on a state in which the work state is approximate, and can correct the grain yield with high accuracy.

<How to correct the yield after the Glen tank is full>
By the way, even after the grains stored in the Glen tank 7 are in a state where the rotation of the bottom lid 92 can be inhibited (that is, the full sensor 71 is ON), for example, by continuing the cutting operation, etc. The supply of grain from the cerealing device 25 to the primary storage chamber 90 (Glen tank 7) may be continued. In this case, since the rotation of the bottom lid 92 may be hindered, there is a possibility that the grain yield cannot be accurately calculated from the number of times the bottom lid 92 is opened and closed.

  Therefore, in the grain storage weight measuring device 9 of the Glen tank 7 according to the present embodiment, the yield is corrected without depending on the number of times of opening / closing the bottom lid 92 when the full sensor 71 is ON. Below, the yield correction methods (part 1) and (part 2) when the Glen tank 7 is full will be described with reference to FIGS. 9A and 9B.

  First, the yield correction method (part 1) when the Glen tank 7 is full will be described with reference to FIG. 9A. FIG. 9A is an explanatory diagram of a yield correction method (part 1) when the Glen tank 7 is full. The vertical axis of the graph shown in FIG. 9A indicates the grain yield and ON / OFF of the full sensor 71, and the horizontal axis indicates time. Here, the grain yield refers to the weight of the grain stored in the Glen tank 7. The time T0 may be, for example, the time when the supply of the grain to the Glen tank 7 is started, but the first cerealing device 25 starts the supply of the grain to the primary storage chamber 90, or the combine. It is good also as time when 1 started the movement with a cutting work and a threshing work.

  When the full sensor 71 is turned on at time T1, the control device 150 determines from the yield W1 during the period from time T0 to time T1 “yield correction value per unit time (time yield correction value)” (W1 / (T1 -T0)) is calculated. In the period after the full sensor 71 is turned on, that is, from the time T1 to the time T2, the control device 150 determines that the grain of weight ΔWT1 = (W1 / (T1-T0)) × (T2-T1) The grain yield is corrected as supplied to 7. Specifically, the weight ΔWT1 is added to the weight (weight W1) of the grain stored in the Glen tank 7 until the Glen tank 7 reaches a full state.

  Next, a yield correction method (part 2) when the Glen tank 7 is full will be described with reference to FIG. 9B. When the grain tank 7 is full, the yield correction method (part 2) is based on the cumulative value obtained by accumulating the distance traveled by the combine 1 until the grain tank 7 is full (the full sensor 71 is ON). By calculating the increase amount of the grain per unit travel distance of the combine 1 in the tank 7, the storage amount of the grain after the Glen tank 7 reaches the full state is corrected.

  FIG. 9B is an explanatory diagram of a yield correction method (part 2) when the Glen tank 7 is full. In the following, the horizontal axis of the graph shown in FIG. 9B is the same as the yield correction method (part 1) in the state where the Glen tank 7 is already full as described with reference to FIG. Because of this, duplicate descriptions are omitted. In addition, the movement distance L0 is a position which becomes the starting point of the movement distance of the combine 1, for example, may be a position where the supply of the grain to the grain tank 7 is started, but the first cerealing device 25 is the primary storage. It is good also as a position which started supply of the grain to the chamber 90, or the combine 1 started the movement with a cutting operation or a threshing operation.

  When the full sensor 71 is in the ON state at the movement distance L1, the control device 150 determines the “yield correction value per unit movement distance (distance yield correction value)” from the yield W1 during the period from the movement distance L0 to the movement distance L1. W1 / (L1-L0)) is calculated. In the section after the full sensor 71 is turned on, that is, from the moving distance L1 to the moving distance L2, the controller 150 has a grain of weight ΔWL1 = (W1 / (L1-L0)) × (L2-L1), The grain yield is corrected as being stored in the Glen tank 7. Specifically, the weight ΔWL1 is added to the weight (weight W1) of the grains stored in the Glen tank 7 until the Glen tank 7 reaches a full state.

  Thus, the grain storage weight measuring device 9 of the grain tank 7 according to the present embodiment sets the grain yield after the grain tank 7 is full (the full sensor 71 is ON) to such a full state. Correction is made based on the elapsed time and the travel distance of the combine 1. Thereby, it becomes possible to calculate the correction value of the grain yield without depending on the number of times the bottom lid 92 is opened and closed. Therefore, even if the operation is continued after the Glen tank 7 is full (the full sensor 71 is ON), the grain yield can be corrected (calculated) with high accuracy.

  Here, the time T0 and the movement distance L0 are described as the time and distance (position) at which the supply of the grain to the Glen tank 7 is started, but the distance shorter than the time T1 and the movement distance L1 in the past. If so, it can be set to an arbitrary time or moving distance.

<Process for calculating yield of grain>
Next, the processing procedure of the grain yield calculation executed by the grain storage weight measuring device 9 of the Glen tank 7 according to the present embodiment will be described with reference to FIG. FIG. 10 is a flowchart showing a processing procedure of grain yield calculation.

  As shown in FIG. 10, the control device 150 determines whether or not the full sensor 71 is OFF (step S201). If the full sensor 71 is OFF (Yes in step S201), whether or not the grain sensor 164 is ON. Is determined (step S202). When the full sensor 71 is ON (No at Step S201), the process of correcting the cumulative yield of grain based on the moving distance is executed (Step S212), and the processes after Step S211 (described later) are repeated. A detailed processing procedure of the cumulative yield correction processing based on the movement distance will be described later with reference to FIG.

  When the grain candy sensor 164 is ON (step S202, Yes), the control device 150 determines whether or not the bottom lid sensor 93 is OFF (step S203). If the grain sensor 164 is OFF (No at Step S202), the measurement of each correction value and correction time and the measurement of the correction distance are initialized (Step S213), and the processes after Step S211 (described later) are repeated.

  When the bottom lid sensor 93 is OFF (step S203, Yes), the number of times the bottom lid 92 is opened and closed is counted (step S204), and the weight of the grain stored in the grain tank 7 is calculated based on the number of times of opening and closing. Calculate (step S205). Note that the processing in step S204 corresponds to increasing the number of times of opening and closing the bottom lid 92 by one. When the bottom cover sensor 93 is ON (No at Step S203), each correction value calculation process is executed (Step S214), and the processes after Step S211 (described later) are repeated. A detailed processing procedure for calculating each correction value will be described later with reference to FIG. The “each correction value” includes the “time correction value”, “correction time”, and “correction distance” already described with reference to FIGS. 8A and 8B.

  Subsequently, from the weight of the grain stored in the primary storage chamber 90 and the time during which the latest bottom lid sensor 93 is ON, the supply weight of the grain per unit time to the primary storage chamber 90 ( In other words, a time correction value) is calculated (step S206), a period during which the bottom cover sensor 93 is OFF (that is, a correction time) is initialized, and measurement is started (step S207). Note that steps S204 to S206 and step S207 may be executed simultaneously or in reverse order.

  Next, the control apparatus 150 performs the process which updates the correction value of the yield of the grain based on the moving distance of the combine 1 (step S208). A detailed processing procedure of the correction value update processing based on the movement distance will be described later with reference to FIG. Then, the supply weight of the grain to the grain tank 7 is calculated based on the time when the bottom cover 92 is in the “open” state and the travel distance of the combine 1 (step S209), and the grain stored in the grain tank 7 is calculated. A cumulative yield is calculated (step S210). Note that the calculation of the supply weight of the grain to the Glen tank 7 in Step S209 may be executed only by either the time when the bottom lid 92 is “open” or the travel distance of the combine 1. Moreover, it is good also as calculating the cumulative yield of a grain with a time correction value and a distance correction value, respectively, and making it display separately on said display part of a portable terminal.

  Subsequently, the control device 150 determines whether or not the cumulative yield calculated in step S210 is greater than or equal to a certain value (step S211). If the cumulative yield calculated in step S211 is greater than or equal to a certain value (step S211, Yes), the process ends. Such a fixed value may be determined in advance based on the capacity of the Glen tank 7, the primary storage chamber 90, the first cereal cylinder 25T, or the like. In addition, the operator may be notified that the cumulative yield is a certain value or more. If the cumulative yield calculated in step S211 is not a certain value or more (step S211, No), the processing from step S201 is repeated. In addition, it is good also as repeating the process after step S201, without performing step S211.

<Procedure for correcting cumulative yield based on travel distance>
Next, a detailed processing procedure of the cumulative yield correction processing based on the movement distance shown in step S212 in FIG. 10 will be described with reference to FIG. FIG. 11 is a flowchart showing a processing procedure for correcting the cumulative yield based on the movement distance.

  The control device 150 determines whether or not the culm sensor 164 is ON (step S301). When the culm sensor 164 is ON (step S301, Yes), the travel distance of the combine 1 and the yield per unit travel distance ( That is, the distance yield correction value) is integrated (step S302), and the process returns. When the cereal sensor 164 is OFF (step S301, No), the travel distance of the combine 1 is measured (step S303), and the process returns.

<Processing procedure for calculating each correction value>
Next, a detailed processing procedure of each correction value calculation process shown in step S214 of FIG. 10 will be described with reference to FIG. FIG. 12 is a flowchart showing a processing procedure for calculating each correction value. The “each correction value” includes the “time correction value”, “correction time”, and “correction distance” already described with reference to FIGS. 8A and 8B.

  The control device 150 calculates the supply weight of the grain to the Glen tank 7 when the latest bottom cover 92 is “open” from the “time correction value” when the previous bottom cover 92 is “closed” ( Step S401). Then, the control device 150 calculates (corrects) the cumulative yield by adding the grain supply weight calculated in step S401 to the yield until the previous bottom cover 92 is in the “closed” state (step S402). ).

  Subsequently, the time from when the bottom lid 92 is in the “closed” state to when it is switched to the “open” state, that is, the time from when the grain is supplied to the primary storage chamber 90 until it becomes full (ie, correction). Time) is measured (step S403). The distance (1) that the combine 1 has moved from when the bottom lid 92 is in the “closed” state until the bottom lid 92 is switched to the “open” state, that is, after the grain is supplied to the primary storage chamber 90 and becomes full. That is, the correction distance is measured (step S404), and the process returns. Note that step S403 and step S404 may be performed simultaneously or in reverse order.

<Processing procedure for updating correction value based on moving distance>
Next, a detailed processing procedure of correction value update processing based on the travel distance of the combine 1 shown in step S208 of FIG. 10 will be described with reference to FIG. FIG. 13 is a flowchart showing a procedure for updating the correction value based on the movement distance.

  The control device 150 determines whether or not the correction distance measured in step S404 is constant (step S501). The determination as to whether or not the correction distance is constant may be constant as long as it is within a predetermined fluctuation range with respect to a predetermined value, and may be predetermined with respect to a previously measured correction distance. The determination may be made based on whether or not there is a fluctuation greater than the value.

  If the correction distance is constant (step S501, Yes), the process returns. When the correction distance is not constant (step S501, No), the control device 150 calculates the grain yield per unit travel distance of the combine 1 in the state where the latest bottom lid 92 is “closed” (that is, the distance correction value). Calculate (step S502) and update to the calculated value (step S503). Then, the correction distance count is initialized (step S504), and the process returns.

  As described above, the grain storage weight measuring device for a grain tank according to one aspect of the embodiment includes a primary storage chamber, a grain tank, and a control device. The primary storage chamber stores the grain after threshing supplied from the threshing apparatus and releases the stored grain for every certain weight. The Glen tank stores the grains released from the primary storage chamber. The control device calculates the weight of the grain stored in the Glen tank based on the number of times the grain has been released from the primary storage chamber.

  As a result, the grains stored in the primary storage chamber are discharged into the Glen tank at regular weights, and the weight of the grains supplied to the Glen tank is calculated based on the number of times the primary storage chamber has released the grains. Can be calculated. Therefore, the exact weight of the grain stored in the Glen tank can be calculated irrespective of the state of the grain such as the moisture content and the variety of the harvested product. Further, it is possible to avoid a situation in which an error occurs in the measurement result of the grain weight due to the inclination, vibration, and aging of the Glen tank, and the yield can be calculated accurately.

  In the above-described embodiment, the grain storage weight measuring device for the Glen tank is described as an example provided in the combine. However, the grain storage weight measuring device for the Glen tank is not limited to this. The weight of the grain provided in the work vehicle which performs or stored in a grain tank such as a silo may be measured. In this case, if the grain storage weight measuring device is configured to include at least a bottom lid sensor, the grain (cereal) supplied to the grain tank (grain tank) in a state where the bottom lid is “open”. The weight can be corrected. If the grain storage weight measuring device is configured to include at least a full sensor, the weight of the grain stored in the Glen tank after the Glen tank (grain tank) reaches a full state is corrected. be able to.

  In the above-described embodiment, the case where a certain weight of grain is supplied to the Glen tank 7 by opening and closing the bottom lid 92 biased by the torsion spring in the primary storage chamber 90 has been described as an example. However, the present invention is not limited to this, and as shown in FIG. 14, the engaging portions 95 (95a, 95b) that are disengaged when a certain load is applied are connected to the main body 91 and the bottom lid 92 of the primary storage chamber 90a. Further, it may be provided. Thereby, when the grain of a fixed weight is stored in the primary storage chamber 90a, the engagement state of the engaging portion 95 is released, and the grain is released from the primary storage chamber 90a to the Glen tank 7, and the release is completed. The bottom cover 92 is closed by the torsion spring, and the main body portion 91 and the bottom cover 92 are returned to the engaged state. Thereby, the opening and closing of the bottom cover 92 by the grain of fixed weight can be performed more correctly. The engaging portion 95 may be, for example, a spring lock type connector in which a pair of male and female connectors are fitted by a spring, or a magnet type push latch. In FIG. 14, the bottom lid 92 in the “open” state is indicated by a dotted line.

  Further, in the above-described embodiment, the case where a certain weight of grain is supplied to the glen tank 7 by opening and closing the bottom lid 92 biased by the torsion spring in the primary storage chamber 90 has been described as an example. However, the present invention is not limited to this, and as shown in FIG. 15, the bottom lid 92 b may be opened and closed by an actuator 96 instead of the torsion spring. The opening / closing direction is not limited to the circumferential direction about the axis AXb (see FIG. 6), and may be, for example, the left-right direction of the machine body (see arrow 112 in FIG. 15). In this case, a weight sensor (not shown) or the like may be provided in the primary storage chamber 90b, and the bottom lid 92b may be opened and closed by the actuator 96 when a certain weight of grain is stored in the primary storage chamber 90b. Thereby, it is possible to accurately open and close the bottom lid 92b with respect to a certain weight of grain, and the weight of the grain stored in the Glen tank 7 can be calculated with high precision. In FIG. 15, the bottom cover 92b in the “open” state is indicated by a dotted line.

  Further effects and modifications can be easily derived by those skilled in the art. Thus, the broader aspects of the present invention are not limited to the specific details and representative embodiments shown and described above. Accordingly, various modifications can be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.

DESCRIPTION OF SYMBOLS 1 Combine 2 Machine frame 3 Traveling apparatus 4 Crawler belt 5 Threshing apparatus 5A Threshing part 5B Sorting part 5C Case 5D Handling room 5P Second processing room 5Pa front outlet 5S Wind selection room 5W Dust removal processing room 6 Cutting device 7 Glen tank 7Y Grain discharging device 7a Opening 71 Full sensor 8A Driver's seat 8B Operating device 9 Grain storage weight measuring device 90 Primary storage chamber 91 Main body 92, 92b Bottom lid 93 Bottom lid sensor 94 Contact 10 Handling cylinder 11 Handling net 12 Fine sorting Net 13 Kara 14 Flapper 15 Front side first sheave 16 Front side second sheave 17 Rear side sheave 18 Sorting shelf 18T Transfer shelf 19 First recovery unit 19L First recovery shelf 20 First recovery device 21 Second recovery unit 22 Second recovery device 23 Drainage cutting device 24 Dust removal fan 25 First cerealing device 26 Second reduction device 27 Graining device 29 Second processing cylinder 30 Dust disposal Body 150 Control device 161 Yield display switch 162 Yield recording switch 163 Cutting height position sensor 164 Grain basket sensor 165 Cutting clutch release sensor 166 Discharge clutch sensor 167 Main transmission lever 168 Parking pedal sensor 169 Vehicle speed sensor 170 Engine rotation sensor 171 External communication unit 172 Monitor 173 Cutting up valve 174 Cutting down valve

Claims (6)

A primary storage chamber for storing the grain after threshing supplied from the cerealing device and releasing the stored grain for each constant weight;
A Glen tank for storing the grains released from the primary storage chamber;
A grain storage weight measuring device for a grain tank, comprising: a control device that calculates the weight of the grain stored in the grain tank based on the number of times the grain has been released from the primary storage chamber. The primary storage chamber is
Arranged on the Glen tank,
A main body connected to the cerealing device;
A communication port for communicating the Glen tank and the main body,
A bottom lid that is provided so as to be able to open and close the communication port, and that opens the communication port each time the grain stored in the main body reaches the constant weight;
The grain storage weight measuring device for a grain tank according to claim 1, further comprising: an open / close detection unit that detects an open / closed state of the bottom lid. The controller is
The grain supply weight per unit time to the primary storage chamber is calculated based on the time during which the fixed weight of the kernel is stored in the primary storage chamber, and the calculated grain supply per unit time By multiplying the weight by the time that the bottom cover is in the state in which the communication port is opened, it is discharged from the cerealing device through the primary storage chamber to the Glen tank in the state in which the communication port is open. The grain storage weight measuring device for a grain tank according to claim 2, wherein the weight of the grain stored in the grain tank is corrected based on the calculation result. The Glen tank is provided in a mobile airframe,
The controller is
Calculate the grain supply weight per unit moving distance of the aircraft to the primary storage chamber based on the distance that the aircraft has moved until the fixed weight of kernels is stored in the primary storage chamber, By multiplying the calculated grain supply weight per unit moving distance by the distance moved by the machine body with the bottom lid opening the communication port, the cerealing device in the state where the communication port is opened The weight of the grain discharged | emitted to the said Glen tank through the said primary storage chamber from the inside is computed, and it was set as the structure which correct | amends the weight of the grain stored in the said Glen tank based on the said calculation result. The grain storage weight measuring device of the Glen tank described in 1. A full detector for detecting a full state of the grains stored in the Glen tank;
The controller is
When the full detection unit detects the full state, the increase in the grain per unit time in the Glen tank based on the time required to reach the full state from the state where there is no stored grain in the Glen tank Calculating the amount, and multiplying the calculated grain increase amount per unit time by the time elapsed after the Glen tank has reached the full state, so that the Glen tank has reached the full state. The grain weight supplied by the cerealing device is calculated, and the weight of the grain stored in the grain tank is corrected based on the calculated grain weight. The grain storage weight measuring device of the Glen tank according to item. A full detector for detecting a full state of the grains stored in the Glen tank;
The controller is
When the full detection unit detects the full state, the unit moves in the Glen tank based on the distance the aircraft has moved from the absence of stored grains in the Glen tank to the full state. The grain tank is calculated by multiplying the calculated grain increment per unit moving distance by the distance the aircraft has moved after the Glen tank reaches the full state. Claims configured to calculate the grain weight supplied by the cerealing device after reaching the full state, and to correct the weight of the grain stored in the Glen tank based on the calculated grain weight. Item 5. A grain storage weight measuring device for a Glen tank according to Item 4.

Images