JP2016063829A - Combine-harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine-harvester enabled to measure the internal quality of grains precisely during the execution of a reaping work by internal quality measuring means.SOLUTION: A combine-harvester comprises optical type internal quality measuring means 36 capable of measuring the internal quality of grains existing in a grain existing space Q, which is constituted to recover the grains obtained by threshing cut grain culm, so that the internal quality of grains existing in a grain existing space Q, such that it is disposed on the outer side of a wall part 9B forming a grain existing space Q, in which the milled grains exist.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a combine configured to recover a grain obtained by threshing a harvested cereal meal.

  The above combine is obtained by threshing the planted cereal by the harvesting part at the front of the machine body, treating the tip of the harvested cereal by the barrel that is driven and rotated inside the threshing device, and obtaining the threshing process. It is comprised so that the obtained grain may be conveyed toward the grain tank with which the side of the threshing device was equipped, and stored. In such a combine, conventionally, the grain carried into the grain tank from the threshing device is measured in the grain tank that stores the threshed grain, for example, the moisture content and the taste. There was one provided with an internal quality measuring means for measuring the internal quality of a grain such as a value (for example, see Patent Document 1).

  In addition, the said conventional structure detects the state of the grain to be harvested by measuring the internal quality of the grain by the internal quality measuring means during execution of the cutting operation, and can effectively use the information. It is something that can be done.

JP-A-10-313638

  By the way, in the combine, as described above, in the threshing process, the threshing process is performed by handling the harvested cereal by the handling cylinder that is driven and rotated. In the threshing process, fine straw scraps, dust, etc. Will occur a lot. And fine straw scraps and dust generated by such a threshing process may be transported to the grain tank in a state of being mixed with the grain, and inside the grain tank, along with the transport of the grain There will be fine cracks and dust that are generated.

  However, in the above-described conventional configuration, the internal quality measuring means is provided inside the grain tank, but as described above, the inside of the grain tank contains fine dust such as straw scraps and dust. For this reason, there is a possibility that such dust may adversely affect the measurement processing by the internal quality measuring means, and there is a possibility that the internal quality of the grain cannot be accurately measured.

  An object of the present invention is to provide a combine that can accurately measure the internal quality of a grain by an internal quality measuring means during execution of a cutting operation.

  The combine which concerns on this invention is comprised so that the grain obtained by the threshing process of the harvested grain cocoon may be collect | recovered, The 1st characteristic structure has the grain by which the threshing process existed An optical system capable of measuring the internal quality of the grain existing in the grain existing space through the light transmitting part provided in the wall while being installed on the outer side of the wall forming the grain existing space. The internal quality measuring means is provided.

  According to the first characteristic configuration, the grain that has been threshed in accordance with the cutting operation is collected, but in the fuselage body, a grain existence space in which the grain that has been threshed exists is formed. Internal quality measuring means is installed on the outer side of the wall. This internal quality measuring means is configured optically, and can measure the internal quality of the grain existing in the grain existing space through the light transmission part provided in the wall part. That is, it becomes possible to measure the internal quality of the grain by the internal quality measuring means during the cutting operation.

  And since the internal quality measuring means is located not on the inside of the grain existence space but on the outer side of the wall part forming the grain existence space, the dust present in the inside of the grain existence space does not fall on the inside. For example, there is no possibility of being adversely affected by dust such as dust entering the inside of the apparatus and hindering measurement processing. That is, the internal quality measuring means can measure the internal quality of the grain in a state where it is located in a good environment that is not likely to be adversely affected by dust.

  Accordingly, it has become possible to provide a combine that enables the internal quality measuring means to accurately measure the internal quality of the grain during the cutting operation.

  The 2nd characteristic structure of this invention is an internal space of the grain tank which stores the grain by which the said grain existence space thresh-processed, The said internal quality measurement means is provided in the wall part of the said grain tank. In addition, the internal quality of the grain stored in the grain tank via the light transmission part is configured to be measurable.

  According to the second feature configuration, the grain that has been threshed with the harvesting operation is stored in the grain tank, and the light transmitting part provided in the wall part inside the grain tank The internal quality measuring means measures the internal quality of the grain stored inside the grain tank.

  Therefore, it is possible to appropriately measure the internal quality of the grain by using a grain tank generally provided in the combine to collect the grain.

  In the third characteristic configuration of the present invention, a holding state in which a part of the threshed grain is received and held in the part corresponding to the light transmitting portion inside the grain tank and the grain are stored in the grain tank. A receiving holder configured to be switched to a discharging state to be discharged is provided, and the internal quality measuring unit is configured to measure the internal quality of the grains received and held by the receiving holder. It is in.

  According to the third feature configuration, the threshed grain is supplied and stored inside the grain tank, but the receiving holding part provided at the location corresponding to the light transmitting part is held. By switching, a part of the grain supplied into the grain tank can be received and held.

  And in the state where the receiving holder holds and holds the grain, the internal quality measuring means measures the internal quality of the grain received and held by the receiving holder, and after the measurement of the internal quality is finished By switching the receiving holder to the discharge state, the grains received and held by the receiving holder can be discharged into the grain tank.

  Therefore, it is possible to accurately measure the internal quality of the grain in a stable state that is received and held by the receiving and holding unit, and after the measurement is performed with such accuracy, the grain is returned to the grain tank. be able to.

  According to a fourth characteristic configuration of the present invention, a transport device that transports the threshed grain into the grain tank is provided in the grain tank by a rotary blade from a supply port formed in an upper part of the grain tank. It is comprised so that it may be bounced off and supplied, The said holding | maintenance holding | maintenance part exists in the state located in the location lower than the said supply port.

According to the fourth characteristic configuration, the threshed grain is transported into the grain tank by the transport device, and then, in the grain tank by the rotary blade from the supply port formed in the upper part of the grain tank. Will be supplied. Thus, the grain can be stored in the grain tank in a leveled state with as little as possible by supplying it by jumping and feeding it into the grain tank by the rotary blade.

  And since the receiving holding part is provided in the state located in a place lower than a supply port, the receiving holding part will be sprinkled off by a rotary blade, and the supplied grain will be discharged towards the receiving holding part. Part of the grain that has been threshed by the receiving and holding unit can be received and held appropriately.

  According to a fifth feature of the present invention, the internal quality measuring means projects a light projecting from the outside of the grain existence space toward the inside, and the grain located inside the grain existence space. It is in the point comprised by the reflection type internal quality measurement apparatus provided with the light-receiving part which light-receives toward the outward from.

  According to the fifth characteristic configuration, the internal quality measuring device is configured to detect light from the grain in which the light projecting unit projects light inward from the outside of the grain existing space, and the light receiving unit is located in the grain existing space. Since it is configured as a reflection type that receives light emitted outward, the light transmitting part provided in the wall part forming the grain existence space is a flat plate-like shape along the wall part. A simple configuration may be used, and the internal quality of the grain stored in the grain existing space can be measured without complicating the structure of the wall.

  A sixth characteristic configuration of the present invention is that a light transmissive member constituting the light transmissive portion is detachably attached to the wall portion.

  By the way, in the structure which measures the internal quality of a grain through the light transmission part with which the wall part was provided as mentioned above, when the measurement process by an internal quality measurement means is repeatedly performed with a cutting operation, light transmission will be carried out. In the state where dust existing in the grain existing space adheres to the part and the surface of the light transmitting part is damaged due to the sliding contact of the grain, so that the measuring light by the internal quality measuring means cannot be transmitted satisfactorily There is a risk of becoming.

  So, according to the 6th characteristic structure, it is set as the structure by which the translucent member which comprises a light transmissive part is detachably attached to a wall part. By adopting such a configuration, even if dust existing in the grain existing space adheres and accumulates on the light transmitting portion as described above, the light transmitting member constituting the light transmitting portion is removed from the wall portion. It is possible to restore to a state where measurement can be performed satisfactorily by performing work such as cleaning or replacing with a new one.

  A seventh characteristic configuration of the present invention is that a cover body made of a light shielding body that covers the outer side area other than a portion of the internal quality measuring means that faces the grain existing space is provided.

  According to the seventh characteristic configuration, since the outer side area other than the part facing the grain existing space of the internal quality measuring means is covered by the cover body made of the light shielding body, the internal quality measuring means Therefore, when projecting light to the grain or receiving light obtained from the grain, the light is projected to the grain in a state that is not easily affected by external disturbance light, or from the grain The resulting light can be received.

  Therefore, it has become possible to accurately measure the internal quality of the grain with little measurement error due to ambient light.

The 8th characteristic structure of this invention exists in the point by which the said internal quality measurement means is comprised so that taste may be measured as internal quality of a grain.

  According to the eighth characteristic configuration, the internal quality measuring means measures the taste as the internal quality of the grain. And, for example, a grain having a high taste evaluation value has a high commercial value, so that subsequent processing is performed while managing the grain separately from a grain having a low taste evaluation value. It becomes possible to change the way of handling.

It is a whole side view of a combine. It is a whole top view of a combine. It is a front view of a grain tank. It is a partially cutaway top view of a grain tank. It is a vertical front view of the weight measurement location of a grain tank. It is a perspective view of the weight measurement location of a grain tank. It is a control block diagram. It is a figure which shows the structure of an internal quality measuring device. It is a partially cutaway side view of a grain tank. It is a perspective view of a grain receiving holding part.

Hereinafter, embodiments of a combine according to the present invention will be described with reference to the drawings.
As shown in FIG. 1 and FIG. 2, the combine is configured to be self-removing and includes a pair of left and right crawler traveling devices 2, and the planted grain culm to be harvested is harvested at the front part of the body, and the harvested grain culm is rearward of the body. Is provided with a cutting unit 5 for transporting toward the rear, a steering unit 4, a threshing device 6 for threshing / selecting the harvested cereal rice cake, and a grain tank 9 for storing the grains selected and collected by the threshing device 6 , The waste straw processing device 7 for treating the waste straw is provided. The engine 3, the control unit 4, the threshing device 6, the grain tank 9, and the like are configured to be placed and supported by the body frame 1.

  Although illustration is omitted, the power from the engine 3 is transmitted to the left and right crawler traveling devices 2, the power branched from the traveling transmission system is transmitted to the cutting unit 5 via the transmission system for cutting conveyance, The transmission system is configured such that the power from the engine 3 is transmitted to the threshing device 6 and the power branched therefrom is transmitted to the waste straw treatment device 7.

  The threshing device 6 holds the tip side by a handling cylinder (not shown) that is rotationally driven in the handling chamber while holding the stock side of the harvested cereal bowl conveyed from the cutting unit 5 by a feed chain (not shown). Treating and threshing, sorting the threshing processed product into single grains and dust such as straw, etc. by the sorting action (not shown) provided in the threshing device 6; A single grain is collected, conveyed to a grain tank 9 and collected, and dust is discharged outside the machine. Further, the waste straw after the threshing process is configured to be shredded by the waste straw processing apparatus 7.

  As shown in FIG. 2, the first thing collection | recovery screw 10 is provided in the bottom part of the threshing apparatus 6, and this first thing collection | recovery screw 10 cross-feeds and conveys a grain to the grain tank 9 side along the body width direction. Moreover, between the threshing apparatus 6 and the grain tank 9, it is screw conveyor type cereal as a conveying apparatus in the state interlocked and connected by the first thing collection | recovery screw 10 and the bevel gear transmission mechanism which is not shown in figure. A device 12 is provided.

And the grain laterally fed by the first thing collection | recovery screw 10 is conveyed upward by the mashing apparatus 12, and as shown in FIG. 4, the spout formed in the upper end part of the cerealing apparatus 12 is shown. It is comprised so that it may convey in the grain tank 9 from the exit 13 through the supply port 14 formed in the upper part of the left side wall part 9A of the grain tank 9. FIG.
As shown in FIG. 4, the upper end of the drive shaft 12a of the cerealing device 12 is provided with a rotary blade 12b that jumps the grain into the grain tank 9, and the grain is as smooth as possible. It is configured so that it can be stored in the tank 9.

  As shown in FIGS. 1 and 2, a bottom screw 15 for conveying the grain toward the rear side of the machine body is provided at the bottom of the grain tank 9, and a bottom for carrying out is provided at the rear side of the machine body of the grain tank 9. A vertical feed screw conveyor 16 is provided for lifting and conveying the grain from the conveyance end in a state where the screw 15 and the bevel gear transmission mechanism (not shown) are interlocked and connected. In addition, at the upper part of the vertical feed screw conveyor 16, the base end portion of the horizontal feed screw conveyor 18 that horizontally feeds and conveys the grain that has been lifted and discharged from the discharge port 17 at the top is vertically moved around the horizontal axis P <b> 1. It is interlocked and connected via a bevel gear transmission mechanism (not shown) so as to be swingable.

  That is, the grains stored in the grain tank 9 can be transported by the bottom screw 15 for carrying out, the vertical feed screw conveyor 16 and the lateral feed screw conveyor 18 and discharged to the outside from the discharge port 17. It is configured.

  The vertical feed screw conveyor 16 is configured to be rotatable around a vertical axis P2 by the operation of an electric motor 19 with a speed reducer, and the horizontal feed screw conveyor 18 is rotated around a horizontal axis P1 at the base end by a hydraulic cylinder 20. The horizontal feed screw conveyor 18 is swiveled and moved up and down to change the position of the discharge port 17 so that the grains are discharged to a transport truck or the like outside the machine. Can do.

  As shown in FIG. 1, a bevel gear transmission mechanism (not shown) that interlocks and connects a bottom screw 15 for carry-out and a vertical feed screw conveyor 16 is provided in the lower part of the rear side wall portion 9C of the grain tank 9, and the grain tank 9 is connected to a bevel gear case 24 that covers the rear end portion of the unloading bottom screw 15 that protrudes rearward and is exposed, and the start end portion of the vertical feed screw conveyor 16. The bevel gear case 24 is integrally formed with a cylindrical support shaft portion 24A that extends downward from the bottom thereof.

  The machine body frame 1 is provided with a shaft support portion 1G that supports the support shaft portion 24A of the bevel gear case 24 so as to be relatively rotatable, and the grain tank 9 has a support shaft portion 24A of the bevel gear case 24 serving as a support shaft facing upward and downward. It is configured to be supported by the body frame 1 so as to be able to swing in the left and right directions.

  With such a configuration, the grain tank 9 is retracted toward the inward side of the machine body by swinging and displacing the front side of the machine body in the left-right direction with the support shaft part 24A of the bevel gear case 24 located at the rear end as a fulcrum. Then, the left side wall 9A is adjacent to the threshing device 6 and the supply port 14 communicates with the discharge port 13 of the threshing device 12, and the lateral side projects outward and the front side is separated from the threshing device 6. The position can be freely changed over the rear of the engine 3 and the maintenance position where the right side of the threshing device 6 is opened (see FIG. 2).

  However, as shown in FIG. 3, a belt tension type discharge clutch 70 is provided which can be switched between a transmission state in which power from the engine 3 is transmitted to the bottom screw 15 for unloading and a cutoff state in which the transmission is cut off. When the tank 9 is switched from the work position to the maintenance position, the transmission belt 71 is removed after the discharge clutch 70 is switched to the disconnected state. Further, as shown in FIG. 3, spring-engaged locking mechanisms 72 and 73 that lock the grain tank 9 in a state in which the grain tank 9 is switched to the working position are provided in the vicinity of the bottom part and the left side wall part 9A of the grain tank 9. Is provided.

  And in this combine, the load cell 25 as a weight measurement means which measures the weight of the grain stored in the grain tank 9 receives the load of the grain tank 9 located at the work position and can measure the weight. It is provided in the fuselage frame 1 and, as the grain tank 9 rotates from the maintenance position toward the work position, the load cell 25 can measure the weight while receiving and supporting the lower end of the grain tank 9. A receiving guide 26 is provided for guiding to a predetermined position.

  As shown in FIGS. 3 and 5, the lower end support portion of the grain tank 9 guided by the receiving guide body 26 is rotatably supported around the horizontal axis and can roll on the receiving guide body 26. A roller 27 is used. The roller 27 is rotatably supported by a lateral support shaft 28 in a state of protruding downward from the lower end portion of the support member 21 with respect to the support member 21 attached to the front lower portion of the grain tank 9. Yes.

  The receiving guide body 26 is switched between a load receiving state placed from above with respect to the weight detection unit 25A provided on the upper portion of the load cell 25 and a retracted state where the load cell 25 is retracted outward so as to open the upper portion of the load cell 25. It is provided freely. That is, as shown in FIGS. 5 and 6, a pair of front and rear brackets 30 are provided in a fixed state on the laterally outer side surface of the front and rear facing frame portion 1 </ b> A provided on the outer side in the lateral width direction of the body frame 1. The base end portion 26A of the receiving guide body 26 is supported by 30 so as to be rotatable around the machine body longitudinal axis P4.

  When the guide mounting portion 26B is provided in a state of extending integrally from the base end portion 26A and the receiving guide body 26 is switched to the load receiving state, as shown by the solid line in FIG. When the mounting portion 26B is positioned closer to the body side than the base end portion 26A and the receiving guide body 26 is switched to the retracted state, as shown by the phantom line in FIG. It will be in the state located in the airframe outer side rather than the edge part 26A.

  As shown in FIG. 5, the upper guide surface 31 of the guide mounting portion 26 </ b> B rolls as the grain tank 9 rotates from the maintenance position toward the work position in a state where it is switched to the load receiving state. The guided roller 27 is formed in an inclined posture so as to be inclined at a gentle inclination angle so as to be displaced upward.

  As shown in FIG. 5 and FIG. 6, the weight detection unit 25 </ b> A is positioned below the receiving guide body 26 switched to the load receiving state and is received by the weight detection unit 25 </ b> A and is supported by the body frame 1. The load cell 25 is provided in a state where the main body portion 25B is placed and supported by the frame portion 1B. When the grain tank 9 is in the working position, the load cell 25 is located at a position corresponding to the approximate center of gravity of the grain tank 9 as viewed from the front-rear direction of the machine body. It is configured to be detachably attached by screwing.

  When the grain tank 9 rotates from the maintenance position toward the work position, the roller 27 is guided to roll along the upper guide surface 31 in the inclined posture of the guide mounting portion 26B, and the roller 27 is lifted slightly upward. Will be guided by. If it does so, the load of the grain tank 9 will be received by the weight detection part 25A of the load cell 25 via the roller 27 and the receiving guide body 26. FIG.

  In this way, the load on the front side of the machine body of the grain tank 9 in the work position is received by the load cell 25 through the receiving guide body 26, and the grains stored in the grain tank 9 by the load cell 25. It is the structure which can measure the weight of a grain. In addition, in the support location which supports the grain tank 9 to the body frame 1 so that rocking is possible, there is flexibility in the vertical direction so that the grain tank 9 can move a little in the vertical direction. It can be set as the structure which receives the load of the grain tank 9 as it is with the load cell 25, and becomes a structure which can measure the weight of the stored grain.

  The detection value of the load cell 25 may cause an error due to the tilt of the combine body, but the measurement error due to the tilt of the body is corrected. That is, as shown in FIG. 7, a left / right tilt angle sensor 32 for detecting the left / right tilt angle of the airframe and a front / rear tilt angle sensor 33 for detecting the front / rear tilt angle are provided. In addition, the detection value of the load cell 25 is corrected by using the detection value of the left / right inclination angle and the arithmetic expression for correction obtained in advance by an experiment or the like, and the accurate storage amount of the grain is obtained. Yes.

  And the amount of storage of a grain will change sequentially as a cutting operation is performed, but the control part 4 is equipped with the amount of storage of the grain detected by the load cell 25 and correct | amending it. The display device 34 is configured to display. The load cell 25 can detect the weight of the stored grain of the grain in a stepless manner, and the display device 34 has a high resolution so that changes in small amounts such as a multi-level level meter display or numerical display can be seen. It is a display form. By configuring in this way, not only during the cutting operation, but also by checking the display content of the display device 34 at the start of the operation, for example, whether or not the kernel remains in the kernel 9 even in a small amount. You can also check.

In this combine, it is located in the outer side (front part side) of the front side vertical wall part 9B as a wall part which forms the internal space for grain presence of the grain tank 9, and it forms in the front side vertical wall part 9B Optical internal quality measurement capable of measuring the internal quality of the grain stored in the measurement target space Q (an example of the grain existence space) in the internal space of the grain tank 9 through the light transmission part 35 An internal quality measuring device 36 is provided as a means.
The internal quality measuring device 36 includes a light projecting unit O that projects light inward from the outside of the grain tank 9 through the light transmitting unit 35, and a light transmitting unit from the grain located inside the grain tank 9. The reflection-type internal quality measuring device 36 includes a light receiving unit I that receives light emitted outward through 35.

  That is, as shown in FIG. 8, the internal quality measuring device 36 includes a light source unit 37 configured to include a tungsten-halogen lamp that emits infrared light as a measurement beam, and the measurement beam and grain from the light source unit 37. The measurement probe 38 for guiding the diffuse reflection light from the grain and the measurement light beam guided by the measurement probe 38 are irradiated to the grain, and the diffuse reflection light from the grain is received to the measurement probe 38. The light emitting / receiving adapter 39 that guides, the spectroscopic measurement unit 40 that measures the spectroscopic spectrum of the diffusely reflected light guided by the measurement probe 38, and the components contained in the grain based on the spectroscopic spectrum obtained by the spectroscopic measurement unit 40 And a calculation unit 41 that performs calculation processing of components based on the above. Although not shown, a shutter unit is provided that can be switched between an irradiation state in which the measurement light beam from the light source unit 37 is irradiated on the grain and a non-irradiation state in which the grain is not irradiated.

  The measurement probe 38 includes an irradiation optical fiber 42 and a light receiving optical fiber 43. The irradiation optical fiber 42 and the light receiving optical fiber 43 are formed by annularly forming a portion excluding the incident end side of the measurement light beam in the irradiation optical fiber 42 and the emission end side of the diffusely reflected light in the light receiving optical fiber 43. The light receiving optical fiber 43 is coaxially formed inside the irradiation optical fiber 42, and the coaxial tip end surface has an annular tip surface of the irradiation optical fiber 42 and the light receiving optical fiber in the inside thereof. 43 circular front end surfaces are flush with each other.

The light projecting / receiving adapter 39 is attached to the tip of the measuring probe 38, and has an outer cylindrical body 39a, an inner cylindrical body 39b coaxially positioned inside the outer cylindrical body 39a with a space from the outer cylindrical body 39a, A connecting member 39c that connects the cylindrical body 39a and the inner cylindrical body 39b, a support member 39d that is connected and fixed to the measuring probe 38, and the like are provided.
The inner cylindrical body 39b is formed in a substantially conical shape having a smaller diameter as the inner diameter and outer diameter of the cylinder are closer to the fiber connection portion on the proximal end side, and the inner wall 39b is smaller as the thickness of the peripheral wall is closer to the measurement probe 38. The inner peripheral surface and the outer peripheral surface of the inner cylinder 39b are finished as mirror surfaces capable of reflecting light. Similarly, the outer cylindrical body 39a is formed in a substantially conical shape in which the cylindrical inner diameter and the cylindrical outer diameter become smaller as they approach the proximal end fiber connecting portion, and the inner peripheral surface of the outer cylindrical body 39a can reflect light. The mirror surface is finished. And the annular opening formed by the front-end | tip part of the inner cylinder 39b and the front-end | tip part of the outer cylinder 39a is made into the light projection part O, and the front-end opening part inside the inner cylinder 3b is made into the light-receiving part I, Each is supposed to function.

  The light projecting / receiving adapter 39 is installed at a location corresponding to the light transmission part 35 of the grain tank 9, and projects light from the outside of the grain tank 9 inward through the light transmission part 35. It is configured to receive light emitted outward from the grain located inside through the light transmission part 35.

  As shown in FIG. 8, a cover body 44 made of a light-shielding member that covers the other outer side region excluding the portion facing the measurement target space Q of the light projecting / receiving adapter 39 in the internal quality measuring device 36 is provided. By providing such a cover body 44, the disturbance light from the outside is irradiated on the grain, and there is little possibility that a measurement error is caused due to the disturbance light.

  Although not shown, the spectroscopic measurement unit 40 is a diffraction grating that spectrally reflects the diffusely reflected light guided by the light receiving optical fiber 43, an array type light receiving element that detects the intensity of the light flux for each wavelength that is spectrally reflected, and the like. The array type light receiving element is configured to simultaneously receive the spectrally reflected diffusely reflected light for each wavelength and to convert the light into a signal for each wavelength and output the signal. That is, spectral spectrum data of received light can be obtained.

  A transparent glass plate 45 as a light transmissive member constituting the light transmissive portion 35 is detachably provided on the front vertical wall portion 9B of the grain tank 9. That is, as shown in FIG. 8, the transparent glass plate 45 enters the concave portion 46 formed in the front vertical wall portion 9B and is sandwiched by the connecting flange portion 44a of the cover body 44, and the connecting flange portion 44a is moved to the front side. It is configured to be fastened and fixed to the vertical wall portion 9 </ b> B with a screw 47, and the transparent glass plate 45 can be easily removed by removing the screw 47.

  This internal quality measuring device 36 measures the internal quality using a component analysis method using the absorption spectrum of near infrared light, and applies the near infrared light to the grain, and the spectrum of the transmitted light. The absorption spectrum is analyzed based on the analysis, and the amount of components such as moisture, protein, amylose, etc. contained in the grain is discriminated based on the analysis result, and the taste is measured based on them. And the above-mentioned measurement is performed by sampling the grains continuously supplied into the grain tank 9 with the cutting operation.

  To briefly explain the measurement process, absorbance spectrum data indicating absorbance at each wavelength is obtained from measurement spectrum data obtained by receiving light from the grain and preset reference spectrum data, Using the value of the specific wavelength of the second-order differentiated value and the calibration curve set in advance for each target component, the internal quality contained in the grain includes water content, protein, amylose, etc. The quantitative value of the chemical component can be obtained, and the evaluation value of the grain taste can be obtained from the quantitative value of the chemical component.

  A plurality of calibration curves for each component are created in advance as follows. That is, based on the absorbance spectrum data actually measured by the internal quality measuring device 36, and the measured value of the chemical component obtained from the result of component analysis by destroying the grain used for measurement at that time, A calibration curve indicating the correspondence between the measurement result of the internal quality measuring device 36 and the actual chemical amount of the grain is created.

  And as shown in FIG. 9, the holding | maintenance state and grain which receive and hold | maintain a part of threshing-processed grain in the part corresponding to the light transmission part 35 inside grain tank 9 in grain tank 9 A receiving holder 48 configured to be switched to a discharging state is provided, and the internal quality measuring device 36 is configured to measure the internal quality of the grains received and held by the receiving holder 48. .

  The holding holding part 48 is located at a position lower than the supply port 14 to which the grain jumps and is supplied into the grain tank 9 by the rotary blade 12b provided at the upper end of the drive shaft 12a of the cerealing device 12. The grain which is provided and is supplied by being bounced off is made easier to be received by the receiving and holding portion 48.

  The receiving holder 48 is configured to include a bottomed box-like body 49 whose upper part is opened so that a part of the grain supplied from the outside can be collected, and in the bottomed box-like body 49 The bottom plate 50 is configured to be swingable between a closed state in which the grain is held and an open state in which the grain is discharged downward.

  If explanation is added, as shown in FIG.9 and FIG.10, the bottomed box-shaped body 49 will form the square cylinder part 51 which forms the surrounding surface of a grain receiving space, and the baseplate 50 which will form the bottom part of a grain receiving space, The square tube portion 51 is fixedly supported by the front vertical wall portion 9B of the grain tank 9, and the end portion of the bottom plate 50 is swingably supported with respect to the square tube portion 51. On the inner side surface of the grain tank 9 of the square cylinder portion 51, a switching mechanism that can be operated to switch the bottom plate 50 between an open state in which the lower opening 52 of the square cylinder portion 51 is opened and a closed state in which the lower opening 52 is closed. A drive casing 54 in which 53 is mounted is attached. Further, a light transmission opening 55 for measuring internal quality is formed on the side surface of the rectangular tube portion 51 on the outer side of the tank.

  The switching mechanism 53 is configured so that the bottom plate 50 can be swung between an open state and a closed state by an electric motor 56 with a deceleration type as an actuator. In addition, an open state detection switch 58 that is turned on when detecting that the bottom plate 50 swings to the open state and a closed state detection switch 59 that is turned on when detecting that the bottom plate 50 swings to the closed state are provided. It has been.

Further, as shown in FIG. 7, a control device 57 composed of a microcomputer as a control means for controlling the operation of the electric motor 56 is provided.
The opening / closing operation of the bottom plate 50 by the control device 57 will be described. When switching to the open state, the electric motor 56 is operated so as to swing the bottom plate 50 in the closed state toward the open state, and then the open state detection is performed. When the switch 58 is turned on, the operation of the electric motor 56 is stopped. Conversely, when switching to the closed state, the electric motor 56 is operated so as to swing the bottom plate 50 in the open state toward the closed state, and then the operation of the electric motor 56 is performed when the closed state detection switch 59 is turned on. Stop.

  A supply state detection sensor 60 as a supply state detection means for detecting that a predetermined amount or more of the grain has been supplied is provided at the upper end portion inside the receiving holder 48, and is provided at a lower portion of the receiving holder 48. Thus, a grain presence / absence sensor 61 as a grain presence / absence detecting means for detecting whether or not a grain is present at a position slightly lower than the lower end position of the bottom plate 50 when switched to the open state. Is provided. The supply state detection sensor 60 and the grain presence / absence sensor 61 are each composed of a capacitive proximity sensor.

  If the presence of the grain is not detected by the grain presence / absence sensor 61, the control device 57 indicates that the supply state detection sensor 60 indicates that the grain has been supplied to the receiving and holding unit 48 in accordance with the cutting operation. Each time it is detected, the measurement process by the internal quality measuring device 36 is executed, and then the bottom plate 50 is switched to the open state, the grain is discharged into the grain tank 9 and then returned to the closed state. It is comprised so that the electric motor 56 may be operated so that. However, when the presence of the grain is detected by the grain presence / absence sensor 61, the bottom plate 50 cannot be switched to the open state by contacting the grain, and thereafter, the measurement process and the grain discharge process are performed. I am trying not to.

  That is, the internal quality is measured a plurality of times within one field. Further, when it is detected by a full detection sensor (not shown) that the storage amount of the grain in the kernel tank 9 is almost full, the weight of the storage amount of the kernel at that time is measured. Such weight measurement of the amount of stored grains is also performed a plurality of times within one field, and the measurement data is stored in a storage device (not shown). Since the internal quality measuring device 36 also measures the moisture content as the internal quality of the grain, when the weight of the grain storage amount is measured, the control device 57 is in a state where the grain is dried, that is, The dry weight when it is assumed that the water content has reached a predetermined value (for example, 14.5%) is also obtained by calculation.

[Another embodiment]
(1) In the above embodiment, the reflection-type internal quality measuring device 36 measures the internal quality of the grain, but instead of such a configuration, a transmission-type internal quality measuring device is used. It may be done. For example, projecting portions that protrude partly outward on the wall portion 9B of the grain tank 9 are formed with transparent bodies on both sides, and the light projecting portion O and the light receiving portion I are arranged oppositely on the left and right sides, Moreover, it is good also as a structure equipped with the light projection part O in another wall part different from the wall part with which the light-receiving part I is provided.

(2) In the above embodiment, the internal quality of the grain existing in the internal space of the grain tank 9 is measured as the grain existing space in which the threshed grain exists, but such a configuration Instead of various kinds of grains, for example, a grain collection point in the threshing device 6, a midway of a conveyance path from the threshing device 6 to the grain tank 9, or a midway of a conveyance path for discharging from the grain tank 9 to the outside Grains existing in space can be measured.

(3) In the above embodiment, the light transmissive member 45 constituting the light transmissive portion 35 is detachably attached to the wall portion 9B. However, it may be provided in a fixed position as a configuration that can be easily cleaned. Good.

(4) In the above embodiment, the present invention is applied to a self-removing combine, but a normal combine may be used.

  The present invention can be applied to a self-removing combine and a normal combine.

DESCRIPTION OF SYMBOLS 9 Grain tank 9B Wall part 12 Conveying device 12b Rotating blade 14 Supply port 35 Light transmission part 36 Internal quality measurement means 44 Cover body 45 Translucent member 48 Receiving holding part O Light projection part I Light reception part Q Grain existence space

Claims (1)

A combine configured to recover the grain obtained by threshing a harvested cereal meal,
The wall is provided with the internal quality of the grain existing in the grain existing space in a state of being installed on the outer side of the wall forming the grain existing space where the threshed grain exists. Combine that is equipped with optical internal quality measuring means that can be measured through the light transmission part.

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