JP2004049054A - Combine harvester grain-discharging structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester grain-discharging structure which can naturally flow down and discharge grains stored in a grain tank onto the platform of a carrier without causing the damage of the grain tank, the platform of the carrier, and the like. <P>SOLUTION: This combine harvester grain-discharging structure equipped with a lifting means 30 for lifting or lowering the grain tank 6 loaded on a travel machine frame 2 to a lower storing position for storing the grains from a thresher 5 or to an upper discharging position for discharging the grains stored in the grain tank 6 from a discharging port 31 in the bottom of the grain tank 6 is characterized by disposing a chute 33 for allowing the grains discharged from the discharging port 31 to flow down and guiding in the bottom of the grain tank 6 in a state capable of being switched into a discharging guide state extending the guide downstream side to the outside of the machine or into a storing state storing all of the chute in the machine and further disposing a control means 69 which permits the switching of the chute 33 from the stored state to the discharging guide state with the arrival of the grain tank 6 to a discharging position or permits the lowering of the grain tank 6 from the discharging position to the storing position with the appearance of the storing state of the chute 33. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides a grain tank mounted on a traveling machine, a lower storage position for storing grains from a threshing device, and a higher discharge position for discharging the grains in the grain tank from an outlet at the bottom thereof. And a grain discharging structure of a combine equipped with elevating means for elevating the grain.
[0002]
[Prior art]
As a grain discharge structure of a combine, a structure in which grains stored in a grain tank are discharged outside the machine by a screw-type grain discharge device is generally used. However, the screw-type grain discharging device forcibly pushes and transports the grain with the screw, and has a clearance between the screw and a case surrounding the screw, so that the grain is discharged. Grains on the way enter between the screw and the case, and are liable to be rubbed and damaged.
[0003]
Therefore, in recent years, in place of the screw type grain discharging device, a lifting device for raising and lowering the grain tank between the storage position and the discharging position is provided, and the grain tank is raised from the storing position to the discharging position by the lifting device. After that, it is considered that the grain stored in the grain tank is naturally discharged to a carrier of a transport vehicle or the like from a discharge port formed at the bottom thereof.
[0004]
Conventionally, as such a grain discharge structure of a combine, for example, as disclosed in Japanese Patent Application Laid-Open No. 7-203775, a discharge port for discharging grains and a door body for opening and closing the discharge port are disclosed. A storage position for storing grains from the threshing device, and a discharge port therefor, are provided by operating a hydraulic cylinder which extends the grain tank provided at the bottom portion between the front and rear struts and the swing link as the elevating means, and operates the hydraulic cylinder. There has been a configuration in which the bottom portion is vertically swung up and down over a discharge position where the bottom portion extends toward the lateral outside of the traveling body.
[0005]
[Problems to be solved by the invention]
However, in the above-described conventional technique, the carrier provided with the discharge port provided at the bottom of the grain tank adjacent to the lateral outside of the traveling machine body by the upward swing of the grain tank from the storage position to the discharge position described above. If the height of the bed, etc. relative to the grain tank rises due to the conditions of the work site, etc., the bed will obstruct, and the grain tank will rise and swing toward the discharge position. In addition to causing the inability to move, the grain tank rises and swings toward the discharge position without noticing the height relationship, so that the bottom of the grain tank comes into contact with the carrier of a transport vehicle, etc. There is a risk of inconvenience of damaging them.
[0006]
Therefore, in order to avoid the above-described inconvenience, the grain tank is configured to be moved up and down over the storage position and the discharge position in a state where the lateral displacement of the grain tank is prevented, and at the bottom thereof, It is also conceivable to equip the chute that guides the grains discharged from the discharge port into a discharge guide state in which the lower side of the guide extends outside the machine, and a storage state in which the whole can be stored inside the machine. However, in this configuration, after the grain tank is raised from the storage position to the discharge position, the chute is switched from the retracted state to the discharge guide state, and after the chute is switched from the discharge guide state to the retracted state, the grain is switched. By lowering the tank from the discharge position to the storage position, even if the height position of the bed, And so on, so that the grain tank cannot be raised toward the discharge position, or the bottom of the grain tank or the chute contacts the carrier of the transport vehicle and damages them. Although the danger can be avoided, the chute is switched from the storage state to the discharge guide state while the grain tank is positioned at the storage position, or the grain tank is lowered from the discharge position to the storage position while the chute is switched to the discharge guide state. If such an operation is performed, the chute comes into contact with the carrier of the transport vehicle or the like, and the chute, the bottom of the grain tank provided with the chute, or the carrier of the transport vehicle is damaged.
[0007]
An object of the present invention is to make it possible to discharge naturally stored grains in a grain tank to a carrier of a transport vehicle or the like without causing a risk of damage to the grain tank or the carrier of the transport vehicle. is there.
[0008]
[Means for Solving the Problems]
〔Constitution〕
In order to achieve the above object, in the invention according to claim 1 of the present invention, a grain tank mounted on a traveling machine body is provided with a lower storage position for storing grains from a threshing device, and the grain tank. In a grain discharge structure of a combine equipped with elevating means for elevating and lowering the kernels in the upper discharging position for discharging the kernels from the outlet at the bottom thereof, the kernel is discharged from the outlet at the bottom of the kernel tank. A chute for guiding the flowed-down kernels is provided so as to be switchable between a discharge guide state in which the lower side of the guide extends outside the machine and a storage state in which the entirety is stored in the machine, and the discharge position of the grain tank. Switching from the storage state of the chute to the discharge guide state when the chute arrives, and the storage position of the grain tank from the discharge position with the emergence of the storage state of the chute. Equipped with control means for allowing the lowering of the position.
[0009]
[Action]
According to the first aspect of the invention, when the grain tank has not reached the discharge position, switching from the storage state of the chute to the discharge guide state is prevented, and the storage of the chute is prevented. When the state has not appeared, the lowering of the grain tank from the discharge position to the storage position is prevented.
[0010]
That is, an operation of switching the chute from the retracted state to the discharge guide state while the grain tank is located at the storage position, or lowering the grain tank from the discharge position to the storage position while switching the chute to the discharge guide state Can be prevented from being performed, and the contact of the chute with the bed of the transport vehicle, which may be caused by the operation thereof, can be avoided.
[0011]
〔effect〕
Therefore, it is possible to prevent the occurrence of inconvenience in which the chute comes into contact with the carrier or the like of the transport vehicle due to an erroneous operation such as an incorrect operation procedure, and, due to the contact, the chute or the bottom of the grain tank provided with the chute or the The possibility of damaging the carrier of the transport vehicle can be eliminated.
[0012]
〔Constitution〕
According to a second aspect of the present invention, in the first aspect of the present invention, there is provided an opening / closing means for opening / closing the discharge port, and the control means causes the chute to display the discharge guide state of the chute. Accordingly, the opening operation of the opening / closing means is allowed, and the switching of the chute to the retracted state is allowed according to the appearance of the closed state of the opening / closing means.
[0013]
[Action]
According to the second aspect of the invention, when the discharge guide state of the chute is not displayed, the opening operation of the opening / closing means is prevented, and the closed state of the opening / closing means is displayed. If not, the switching of the chute from the discharge guide state to the retracted state is prevented.
[0014]
In other words, the opening operation of the opening / closing means is performed while the chute is switched to the retracted state to open the discharge port, or the chute is moved from the discharge guide state while the discharge port is opened without performing the closing operation of the opening / closing means. It is possible to prevent operations such as being switched to the storage state from being performed, and the kernels stored in the kernel tank, which may be generated by such operations, are stored at a predetermined discharge position such as a carrier of a transport vehicle. Therefore, it is possible to prevent the inconvenience of being discharged onto the body beforehand.
[0015]
〔effect〕
Therefore, it is possible to prevent the occurrence of the inconvenience that the grains in the grain tank are discharged onto the machine due to an erroneous operation such as an incorrect operation procedure, and it is possible to eliminate a decrease in the grain collection efficiency caused by the discharge. It became so.
[0016]
〔Constitution〕
According to a third aspect of the present invention, in the first aspect or the second aspect, the control means stores the chute based on reaching the discharge position of the grain tank. The state is switched from the state to the discharge guide state, and the grain tank is lowered from the discharge position to the storage position based on the appearance of the storage state of the chute.
[0017]
[Action]
According to the invention described in claim 3, when the grain tank reaches the discharge position, the chute is automatically switched from the storage state to the discharge guide state, and when the storage state of the chute appears, The grain tank will automatically descend from the discharge position to the storage position.
[0018]
That is, an operation of switching the chute from the retracted state to the discharge guide state while the grain tank is located at the storage position, or lowering the grain tank from the discharge position to the storage position while switching the chute to the discharge guide state Of the chute, which may be caused by the operation of the chute, can be avoided beforehand, and the chute can be prevented by positioning the grain tank at the storage position. And the state in which the grain tank is positioned at the discharge position and the chute is switched to the discharge guide state, thereby making it possible to simplify the operation required to appear.
[0019]
〔effect〕
Therefore, it is possible to eliminate the possibility that the chute contacts the carrier or the like of the carrier due to an erroneous operation such as an erroneous operation procedure, thereby damaging them, and to improve operability.
[0020]
〔Constitution〕
In the invention according to claim 4 of the present invention, in the invention according to any one of claims 1 to 3, the control means controls the chute based on the appearance of the discharge guide state of the chute. The opening and closing means for opening and closing the discharge port is opened, and the chute is switched from the discharge guide state to the storage state based on the appearance of the closed state of the opening and closing means.
[0021]
[Action]
According to the fourth aspect of the present invention, the opening / closing means is automatically opened when the discharge guide state of the chute appears, and the chute is automatically opened when the closed state of the opening / closing means appears. Thus, the state can be switched from the discharge guide state to the storage state.
[0022]
In other words, the opening operation of the opening / closing means is performed while the chute is switched to the retracted state to open the discharge port, or the chute is moved from the discharge guide state while the discharge port is opened without performing the closing operation of the opening / closing means. It is possible to prevent the operation such as switching to the storage state from being performed, and the grains stored in the grain tank, which may be generated by such an operation, are discharged at a predetermined discharge position such as a carrier of a carrier. Rather, the inconvenience of being discharged onto the aircraft can be avoided beforehand, and the chute is switched to the discharge guide state and the opening / closing means is switched to the open state, and the chute is switched to the open / close means and closed to store the chute. It is possible to simplify the operation necessary for switching between the state and the state where the state has been switched.
[0023]
〔effect〕
Therefore, it is possible to prevent a decrease in the grain collection efficiency caused by the grain in the grain tank being discharged to the machine body due to an erroneous operation such as an incorrect operation procedure, and to improve the operability.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows, as an example of a combine, an entire left side surface in which a part of an ordinary combine for harvesting beans is cut away, and the combine is a traveling body driven by a pair of left and right crawler traveling devices 1. At the front of 2, a cutting and conveying unit 3 that cuts the planted grain culm and conveys it rearward is equipped so as to be able to perform an up-and-down swing operation by the operation of the hydraulic cylinder 4. A threshing device 5 that performs threshing on the harvested grain culm and sorts the processed product obtained by the threshing, and a grain tank 6 that stores the grains from the threshing device 5 It is mounted on the traveling body 2, and has a boarding operation section 7 formed at a position in front of the grain tank 6 in the traveling body 2, and is equipped with an engine 8 and the like.
[0025]
The cutting and conveying unit 3 cuts the planted cereal culm weeded by the weeding tool 9 provided at the front end of the cultivated cereal stem with a disc-shaped cutter 10 and at the rear with a belt-type conveying device 11. The harvested grain culm from the transport device 11 is sent to the rear while being collected by the auger 12 at a predetermined location in the left-right direction, and the harvested grain culm sent backward from the predetermined location of the auger 12 is supplied to the supply conveyor 13. Is transported toward the threshing device 5 at the rear. Reference numeral 14 shown in FIG. 1 is a gauge wheel that keeps the cutter 10 and the like at a desired ground height by following irregularities in a field scene.
[0026]
The threshing device 5 transports the harvested grain culm from the supply conveyor 13 supplied via the beater 15 rearward by the transport belt 16 and threshes the harvested grain culm from the transport belt 16 by the threshing rotor 17. After the threshing process, the processed material is subjected to a sieving and sorting process by a rocking sorting device 18 and a wind force sorting process by a sorting wind from Karamin 19, and is collected first without being conveyed by a sorting belt 20. The grains flowing down to the section 21 are conveyed by the first screw 22 and supplied to the first bucket conveyor 23 erected between the threshing device 5 and the grain tank 6, and supplied to the second recovery section 24. The mixed material of the grain and dust is conveyed by a second screw 25 and supplied to a second bucket conveyor 26 erected between the threshing device 5 and the grain tank 6, and the first collection unit 21 and Second collection It is configured to discharged outside the dust that has not been recovered to 24 from the exhaust 稈口 27.
[0027]
As shown in FIGS. 1 to 7, the first bucket conveyor 23 discharges the grains transported by the first screw 22 toward a receiving section 28 provided at the upper end of the grain tank 6, and receives the grains. The second bucket conveyor 26 is configured to feed the contaminant conveyed by the second screw 25 and return it to the swing sorting device 18. I have.
[0028]
As shown in FIGS. 2 to 11, the grain tank 6 has a column 29 erected at the right rear end of the traveling machine body 2, and a lifting operation over a lower storage position and an upper discharge position by the lifting / lowering means 30 is performed. In the lower storage position, the receiving portion 28 is connected to the first bucket conveyor 23 to store the kernels from the threshing device 5 and the upper discharge position. In this example, the stored grains can be naturally discharged from the discharge port 31 formed at the right end of the bottom.
[0029]
That is, since the grain tank 6 is cantileveredly supported by the column 29 in a state in which the grain tank 6 can be moved up and down, compared with a case where the grain tank 6 is supported in a state in which the grain tank 6 can be vertically moved by the front and rear columns, for example. As a result, a sturdy, tall, and large-scale structure for supporting the grain tank 6 so as to be able to move up and down can be used, and the number of the pillars 29 that restrict the size of the grain tank 6 can be reduced. As a result, the size of the grain tank 6 can be increased while simplifying the grain tank support structure, and the grain storage capacity of the grain tank 6 can be increased.
[0030]
In addition, since the column 29 is erected at the rear end of the traveling body 2, maintenance of the engine 8 mounted on the front part of the grain tank 6 in the traveling body 2 and a transmission device (not shown) from the rear can be performed. A transmission system 82 for transmitting the power from the engine 8 to the Karin 19 of the threshing device 5; a first bucket conveyor 23 and a second bucket conveyor erected between the threshing device 5 and the grain tank 6; 26 and the like, and since the support pillar 29 is not erected immediately behind the boarding operation unit 7, the field of view from the boarding operation unit 7 can be widened and work can be performed easily. Since the upper and lower pillars 29 effectively function as balance weights for the reaping and transporting unit 3 connected to the front part of the traveling body 2, the rose mounted on the rear part of the traveling body 2 is used. It has to be able to adopt those of smaller and lighter as Suweito.
[0031]
As shown in FIGS. 2 to 18, a lower portion of the grain tank 6 is provided with opening / closing means 32 for opening / closing the discharge port 31 and a chute 33 for guiding the grains discharged from the discharge port 31 to flow down. The means 32 is configured to open and close the discharge port 31 by sliding operation of the shutter 35 by the operation of the electric motor 34, and the chute 33 is turned rightward from the guide upper part 36 and the guide lower part 37. The discharge guide position is pivotable between the discharge guide position and the storage position facing forward, and the guide lower side portion 37 has a flow-down guide posture along the guide upper side portion 36 and a flow-down preventing posture that stands up toward the guide upper side portion 36. It is configured to be able to bend and stretch.
[0032]
An opening 38 communicating with the discharge port 31 is formed at the upper end of the upper guide side portion 36, and a flange 39 is provided so as to be rotatably surrounded by the grain tank 6. The flange 39 is provided with an electric motor. It is also used as a driven gear that meshes with a pinion gear 41 that is driven forward and reverse by the operation of 40. The lower guide side portion 37 is connected at its lower guide bottom portion to the lower guide bottom portion of the upper guide portion 36 via a lateral support shaft 42, and has a lower right upper guide portion and a drainage portion in the grain tank 6. Along with the support arm 43 hanging down at the right rear portion of the exit 31, the guide lower side portion 37 is erected and urged in accordance with the turning operation of the chute 33 from the discharge guide position to the storage position, and from the storage position of the chute 33. A spring 44 is provided to allow the guide lower side portion 37 to fall down due to its own weight with the turning operation to the discharge guide position.
[0033]
That is, the spring 44 switches the chute 33 from the downflow prevention position to the downflow guide position in conjunction with the turning drive operation of the chute 33 from the storage position to the discharge guide position, and switches the chute 33 from the discharge guide position to the storage position. A mechanical interlocking mechanism is configured to switch the chute 33 from the downflow guide posture to the downflow prevention posture in conjunction with the turning drive operation.
[0034]
With the above configuration, the turning operation between the discharge guide position and the storage position of the chute 33 can be performed by the forward and reverse rotation of the pinion gear 41 by the operation of the electric motor 40, and the chute 33 is discharged from the storage position of the chute 33 by the operation of the electric motor 40. The chute 33 is moved from the flow-down guide posture to the flow-down guide posture in conjunction with the swing drive operation to the guide position, and the chute 33 is moved from the flow-down guide posture in conjunction with the swing drive operation from the discharge guide position to the storage position of the chute 33. It can be switched to the downflow prevention position. That is, the operation of the single electric motor 40 switches the discharge guide state in which the chute 33 is located at the discharge guide position and is switched to the flow-down guide posture, and the storage state in which the chute 33 is located at the storage position and is switched to the flow-down prevention posture. In the discharge guide state, the guide lower side portion 37 of the chute 33 can be extended to the right outside of the traveling body 2, and in the retracted state, the entire chute 33 is stored within the width of the traveling body 2. It is supposed to be.
[0035]
As shown in FIGS. 2 to 10 and FIG. 19, the support 29 can be vertically divided into two parts from a lower support 45 erected on the traveling body 2 and an upper support 46 detachably connected to the upper end thereof. The lower support 45 has a horizontal frame 48 extending between upper and lower intermediate portions of a pair of left and right lower support members 47 made of a long, C-shaped, grooved steel cross-section, and a connection frame extending between upper ends thereof. 49, and the upper support 46 is provided with a horizontal frame 51 extending over the upper ends of a pair of left and right upper support members 50 made of a short, cross-sectionally C-shaped grooved steel, and the lower ends thereof. The connecting frames 52 are respectively provided so as to extend over each other, and the connecting frames 49, 52 and the like are detachably connected by bolts.
[0036]
As described above, since the column 29 can be vertically divided into two parts, the bolt connection between the lower column 45 and the upper column 46 is released and the upper column 46 is detached from the lower column 45. The height of the combine as a whole can be reduced together with the height of the combine 29, thereby making it less likely that the column 29 will come into contact with other objects when moving or traveling or transported by a transport vehicle. Can be stored in a relatively low barn or in a luggage compartment of a truck.
[0037]
The lifting / lowering means 30 includes a pair of upper and lower guides guided by corresponding left and right lower support members 47 and upper support members 50 at the right and left rear ends of the support frame 53 on which the grain tank 6 is removably mounted and fixed by bolt connection. And a chain as a cable 55 is laid across a cylinder tube 56A of a hydraulic cylinder 56 erected between the left and right lower support members 47 and a support frame 53, and a piston rod 56B of the hydraulic cylinder 56 is provided. A sprocket 58 for guiding the chain 55 along with the expansion and contraction operation of the hydraulic cylinder 56 is provided at the tip of the hydraulic cylinder 56, and the grain tank 6 is raised and lowered by the pulling force via the chain 55 due to the expansion and contraction operation of the hydraulic cylinder 56. ing.
[0038]
As shown in FIGS. 2, 3, and 8, when the grain tank 6 is lowered to the storage position, the column 29 in the grain tank 6 is provided immediately after the boarding operation unit 7 in the traveling body 2. A support frame 59 for receiving and supporting a front end, which is an end opposite to the support side, is provided upright. From this configuration, when the grain tank 6 is running at the storage position, the support column 29 and the support frame 59 In the case where the grain tank 6 can be supported in a stable state by the two-sided support of the grain tank 6, whereby the grain tank 6 is cantilevered only by the column 29 even during traveling when the grain tank 6 is located at the storage position. In this way, deformation of the column 29 caused by the grain tank 6, which has increased in weight due to the storage of grains, caused by vibration during traveling, can be avoided.
[0039]
As shown in FIG. 2 and FIG. 5, a portion formed between the traveling body 2 and the right side wall of the grain tank 6 located at the storage position is provided at the right end of the traveling body 2 behind the riding operation unit 7. A decorative panel 60 for covering the space to be formed and the chute 33, the support frame 59, and the like positioned therebetween are detachably provided upright.
[0040]
As shown in FIG. 2 to FIG. 6, FIG. 8 and FIG. 9, at the right rear end of the traveling body 2, a rear side of the body formed between the traveling body 2 and the grain tank 6 located at the storage position. The fuel tank 61 is provided by effectively utilizing the space.
[0041]
As shown in FIGS. 2 to 17 and FIGS. 20 to 22, the raising / lowering operation of the grain tank 6 by the operation of the raising / lowering means 30, the opening / closing operation of the discharge port 31 by the opening / closing means 32, and the operation of the chute 33 by the operation of the electric motor 40. The turning operation is performed by operating the first switch 63 or the second switch 64 of the grain discharging operation unit 62 provided in the boarding operation unit 7, or by the controller 66 held on the rear panel 65 that hides the column 29 and the hydraulic cylinder 56. The operation can be performed by a control operation of a control device 69 including a microcomputer based on the operation of the first switch 67 and the second switch 68 described above.
[0042]
Each of the first switches 63 and 67 is of a cross-operation type and is of a neutral return type. Based on the operation of the first switches 63 and 67, an ascending command, a descending command, a left turning command, a right turning command, or a stop command is sent to the control device 69. It is configured to output. Each of the second switches 64 and 68 is of a two-position switching type, and is configured to output an opening command or a closing command to the control device 69 based on the operation thereof.
[0043]
In addition to the command information from each of the first switches 63 and 67 and the second switches 64 and 68, the control device 69 includes a first limit switch that detects whether or not the grain tank 6 has reached the discharge position. Detecting means 70, second detecting means 71 including a limit switch for detecting whether the chute 33 has reached the storage position, and third detecting means including a limit switch for detecting whether the shutter 35 is closed. The detection information from the means 72 and the like is input.
[0044]
The first detecting means 70 is provided on a fixed fulcrum side of a waist-folding link 74 erected between the traveling body 2 and the grain tank 6 so that the detecting arm 73 bends and elongates as the grain tank 6 moves up and down. By being pressed by the operation pin 75, the arrival of the grain tank 6 at the discharge position is detected, and the operation pin 75 performs the second extension operation of the waist broken link 74 at which the grain tank 6 reaches the discharge position. The detecting arm 73 of the first detecting means 70 is pressed.
[0045]
Note that the waist break link 74 is for supporting a wire harness 76 wired over the traveling machine body 2 and the grain tank 6. By wiring the wire harness 76 along the waist break link 74, the kernel At the time of raising and lowering the tank 6, the wire harness 76 can be prevented from being inadvertently damaged by being caught by another object, or a problem such as hindering the raising and lowering operation of the grain tank 6 can be avoided. ing.
[0046]
The second detecting means 71 detects that the chute 33 has reached the storage position by the detection arm 77 being pressed by the operation piece 78 that rotates together with the chute 33 when the chute 33 reaches the storage position. Is to be detected.
[0047]
When the detection arm 79 is pressed by the linking mechanism 80 that links the electric motor 34 and the shutter 35 when the detection arm 79 is at the closed position, the third detection unit 72 closes the shutter 35. Is detected.
[0048]
As shown in FIG. 21, FIG. 23 and FIG. 24, when one of the first switches 63, 67 is operated to the ascending position, an ascending command from the first switch 63, 67 is input to the controller 69. Then, the electromagnetic control valve 81 for switching the flow state of the hydraulic oil to the hydraulic cylinder 56 is switched to a supply state for supplying the hydraulic oil to the hydraulic cylinder 56, and the hydraulic cylinder 56 is extended to move the grain tank 6 to the discharge position. When the first switches 63 and 67 are returned from the ascending position to the neutral position, the ascending commands from the first switches 63 and 67 are cut off, and a stop command is input. The electromagnetic control valve 81 is switched to a supply / discharge stop state in which supply / discharge of hydraulic oil to / from the hydraulic cylinder 56 is stopped, and the operation of the hydraulic cylinder 56 is stopped to raise the grain tank 6. It is configured to perform a rise stop control to locked.
[0049]
Conversely, when one of the first switches 63, 67 is operated to the lowering position and a lowering command is input from the first switch 63, 67, based on the detection information from the second detector 71, It is determined whether or not the chute 33 has reached the storage position. If the chute 33 has reached the storage position, the electromagnetic control valve 81 is switched to a discharge state for discharging hydraulic oil from the hydraulic cylinder 56, The hydraulic cylinder 56 is shortened to perform a lowering control for lowering the grain tank 6 toward the storage position, and the first switches 63, 67 are returned from the lowering position to the neutral position, and the first switches 63, 67 are returned. When the descent command from 67 is interrupted and a stop command is input, the electromagnetic control valve 81 is switched to a supply / discharge stop state in which supply / discharge of hydraulic oil to / from the hydraulic cylinder 56 is stopped. 6 operates to stop the in is configured to perform a descending stop control to stop the descent of the grain tank 6. When the chute 33 has not reached the storage position, the above-described lowering control is not executed.
[0050]
When one of the first switches 63, 67 is operated to the right turning position and a right turning command is input from the first switch 63, 67, the detection information from the first detecting means 70 is output. It is determined whether or not the grain tank 6 has reached the discharge position on the basis of the above. If the grain tank 6 has reached the discharge position, the electric motor 40 is rotated forward to discharge the chute 33. Right turn control for turning toward the guide position is executed, the first switches 63 and 67 are returned from the right turn position to the neutral position, and the right turn command from the first switches 63 and 67 is cut off. When a stop command is input at the same time, a right turning stop control for stopping the right turning of the chute 33 by stopping the operation of the electric motor 40 is executed. When the grain tank 6 has not reached the discharge position, the above-described right turn control is not executed.
[0051]
Conversely, when one of the first switches 63, 67 is operated to the left turn position and a left turn command is input from the first switch 63, 67, the detection information from the third detection means 72 is output. It is determined whether or not the shutter 35 is in the closed state on the basis of the control signal. If the shutter 35 is in the closed state, the electric motor 40 is rotated in the reverse direction to execute the left turning control for turning the chute 33 toward the storage position. Then, when the first switches 63 and 67 are returned from the left turning positions to the neutral positions, and the left turning commands from the first switches 63 and 67 are cut off and a stop command is input, the electric motor 40 is operated. It is configured to execute a left turning stop control for stopping and stopping the left turning of the chute 33. When the shutter 35 is in the open state, the left turning control is not executed.
[0052]
On the other hand, when one of the second switches 64, 68 is switched to the ON state and an opening command is input from the second switch 64, 68, the shooting is performed based on the detection information from the second detection means 71. It is determined whether or not 33 has reached the storage position. If the grain tank 6 has not reached the storage position, the electric motor 34 is rotated forward to slide the shutter 35 toward the open position. When the second switch 64, 68 is switched to the off state and a closing command is input from the second switch 64, 68, the electric motor 34 is operated in reverse to open the shutter 35. It is configured to execute closing control of sliding toward the closing position. When the grain tank 6 has reached the storage position, the above-described opening control is not executed.
[0053]
With the above configuration, when performing the grain discharging operation of discharging the grains stored in the grain tank 6 to a truck bed or the like (not shown), the grain discharging operation unit 62 or the first switch 63 of the controller 66, After the grain tank 6 is raised from the storage position to the discharge position by operating the elevating means 30 by operating the 67 and the second switches 64 and 68, the chute 33 is discharged from the storage position by the operation of the electric motor 40. The vehicle is turned to the position and switched from the downflow prevention position to the downflow guide position, and the guide lower side portion 37 is set in a discharge guide state extending to the right outside of the traveling body 2. Then, the discharge port 31 is opened and closed by the opening / closing means 32. If it is opened, the grains stored in the grain tank 6 can be naturally discharged to the truck bed or the like from the discharge port 31 at the bottom thereof through the chute 33. After the grain discharge operation, the discharge port 31 is closed by the opening / closing means 32, the chute 33 is turned from the discharge guide position to the storage position by the operation of the electric motor 40, and is switched from the flow-down guide position to the flow-down preventing position. If the whole of the grain tank 6 is lowered from the discharge position to the storage position by the operation of the lifting / lowering means 30 after the whole storage state is stored within the width of the traveling machine body 2, during harvesting travel, The grains supplied from the threshing apparatus 5 supplied by the first bucket conveyor 23 can be stored in the grain tank 6, whereby the grains stored in the grain tank 6 are forcibly screwed. When a screw-type grain discharging device that pushes and conveys the particles into the container is used, the grain that is being discharged easily enters between the screw and its case and is rubbed. It is to have to be able to avoid the disadvantage that the damage.
[0054]
Further, the control device 69 allows the switching from the storage state of the chute 33 to the discharge guide state when the grain tank 6 reaches the discharge position, and also causes the grain to appear when the storage state of the chute 33 appears. The drop of the grain tank 6 from the discharge position to the storage position is allowed, the opening operation of the opening / closing means 32 is allowed along with the appearance of the discharge guide state of the chute 33, and the opening / closing state of the opening / closing means 32 is changed. When the grain tank 6 has not reached the discharge position, the storage state of the chute 33 is controlled. Is switched to the discharge guide state, and when the storage state of the chute 33 is not displayed, the grain tank 6 is prevented from descending from the discharge position to the storage position. , The opening operation of the opening / closing means 32 is prevented when the discharge guide state of the chute 33 is not displayed. When the closed state of the opening / closing means 32 is not displayed, the discharge guide of the chute 33 is not displayed. Switching from the state to the storage state is prevented.
[0055]
That is, the chute 33 is switched from the retracted state to the discharge guide state while the grain tank 6 is positioned at the storage position, or the grain tank 6 is lowered from the discharge position to the storage position while the chute 33 is switched to the discharge guide state. Since it is possible to prevent such operations as being performed, the chute 33, which may be caused by such operations, comes into contact with the decorative panel 60 or the bed of the carrier, and the grain including the chute 33 and the chute 33 is provided. The inconvenience of damaging the bottom of the grain tank 6 and the like can be avoided beforehand, and the opening / closing means 32 is opened while the chute 33 is switched to the retracted state to open the discharge port 31, or The chute 33 is switched from the discharge guide state to the retracted state with the discharge port 31 kept open without the closing operation of the opening / closing means 32 being performed. Can be prevented from being performed, the grains stored in the grain tank 6, which may be generated by such operations, are removed at a predetermined discharge position such as a carrier of a transport vehicle. Therefore, it is possible to prevent a drop in the grain collection efficiency caused by being discharged onto the traveling machine body 2 beforehand.
[0056]
[Another embodiment]
Hereinafter, other embodiments of the present invention will be listed.
[1] The combine may be a normal type or a self-removing type configured to harvest rice or wheat.
[0057]
[2] The elevating means 30 may be configured by employing a wire or the like instead of the chain as the cable 55, or may be configured by employing a winch or the like instead of the hydraulic cylinder 56. Further, the grain tank 6 may be configured to be directly moved up and down by the expansion and contraction operation of the hydraulic cylinder 56.
[0058]
[3] The chute 33 can be switched between a discharge guide state in which the lower side of the guide extends out of the machine and a stored state in which the whole of the chute 33 is accommodated in the machine only by a turning operation between the discharge guide position and the storage position. May be configured to be switchable between the discharge guide state and the retracted state only by switching between the downflow guide posture and the downflow prevention posture. .
[0059]
[4] As the chute 33, the sliding operation of the guiding lower side portion 37 along the guiding upper side portion 36 with respect to the guiding upper side portion 36 causes the guiding lower side portion 37 to retreat with respect to the guiding upper side portion 36. It may be configured to perform
[0060]
[5] When the first detector 70 detects that the grain tank 6 reaches the discharge position, the controller 69 controls the operation of the electric motor 40 to store the chute 33 based on the detection information. When the state is switched from the state to the discharge guide state and the arrival of the chute 33 at the storage position (appearance of the storage state) is detected by the second detection means 71, the operation of the electromagnetic control valve 81 is performed based on the detection information. May be controlled to lower the grain tank 6 from the discharge position to the storage position. According to this configuration, the chute 33 is switched from the retracted state to the discharge guide state while the grain tank 6 is located at the storage position, or the grain tank 6 is stored from the discharge position while the chute 33 is switched to the discharge guide state. Operation, such as lowering to the position, can be prevented, and the chute 33 which may be caused by the operation comes into contact with the decorative panel 60 or the carrier of the carrier, and the chute 33 is moved. In addition to avoiding the problem of damage to the bottom of the grain tank 6 provided, the grain tank 6 is located at the storage position and the chute 33 is switched to the retracted state, and the grain tank 6 is moved to the discharge position. It is possible to improve the operability in switching between the position where the chute 33 is switched to the discharge guide state and the state where the chute 33 is switched to the discharge guide state.
[0061]
[6] The controller 69 controls the second detection means 71 to stop detecting the arrival of the chute 33 at the storage position (appearance of the storage state), in other words, the appearance of the ejection guide state of the chute 33 is detected. When the operation of the electric motor 34 is controlled based on the detected information to open and close the opening / closing means 32 for opening and closing the discharge port 31, and the third detecting means 72 detects the closed state of the shutter 35. The operation of the electric motor 40 may be controlled based on the detection information to switch the chute 33 from the discharge guide state to the retracted state. According to this configuration, the opening operation of the opening / closing means 32 is performed while the chute 33 is switched to the retracted state to open the discharge port 31, or the discharge port 31 is opened without performing the closing operation of the opening / closing means 32. The operation in which the chute 33 is switched from the discharge guide state to the retracted state while the chute 33 is being held can be prevented from being performed, and the grains stored in the grain tank 6 that may be generated by such operations can travel. A drop in the grain collection efficiency caused by being discharged onto the machine body 2 can be avoided beforehand, and a state in which the chute 33 is switched to the discharge guide state and the opening / closing means 32 is switched to the open state is provided. The operability in switching between the closed state and the state in which the chute 33 has been switched to the retracted state can be improved.
[0062]
[7] When the first detector 70 detects that the grain tank 6 has reached the discharge position, the controller 69 controls the operation of the electric motor 40 to store the chute 33 based on the detection information. The state is switched from the state to the discharge guide state, and when the appearance of the discharge guide state is detected by the second detecting means 71 (the arrival of the chute 33 at the storage position is no longer detected), the electric motor is controlled based on the detection information. When the opening / closing means 32 for controlling the operation of the shutter 34 to open and close the discharge port 31 is opened and the closed state of the shutter 35 is detected by the third detecting means 72, the electric motor 40 is controlled based on the detected information. When the chute 33 is switched from the discharge guide state to the retracted state by controlling the operation of the chute 33, the appearance of the retracted state (the arrival of the chute 33 at the retracted position) is detected by the second detecting means 71. Based on the detected information may constitute a grain tank 6 by controlling the operation of the solenoid control valve 81 from the discharge position so as to lower the reservoir position.
[0063]
[8] The first detecting means 70, the second detecting means 71, and the third detecting means 72 may be constituted by a proximity switch, a pressure switch, a potentiometer, or the like.
[Brief description of the drawings]
FIG. 1 is a left side view of the entirety of a part of a normal combine which is cut away.
FIG. 2 is a right side view of a main part showing a state where a grain tank is located at a storage position.
FIG. 3 is a right side view of a main part showing a state where the grain tank is located at a discharge position.
FIG. 4 is a rear view of the ordinary combine.
FIG. 5 is a rear view of the normal combine showing the grain tank in the storage position.
FIG. 6 is a rear view of the normal combine showing the grain tank in the discharge position.
FIG. 7 is a plan view of a main part of the ordinary combine.
FIG. 8 is a side view of a main part showing a support structure of the grain tank.
FIG. 9 is a longitudinal sectional side view of a main part showing a state where the grain tank is located at a storage position.
FIG. 10 is a longitudinal sectional side view of a main part showing a state where a grain tank is located at a discharge position.
FIG. 11 is a longitudinal rear view of a main part showing a state in which a discharge port is opened by an opening / closing means.
FIG. 12 is a cross-sectional plan view of a main part showing a state in which a discharge port is closed by opening / closing means;
FIG. 13 is a cross-sectional plan view of a main part showing a state in which a discharge port is opened by opening / closing means.
FIG. 14 is a cross-sectional plan view of a main part showing a stored state of the chute.
FIG. 15 is a cross-sectional plan view of a main part showing a discharge guide state of the chute.
FIG. 16 is a side view of a main part showing a stored state of the chute.
FIG. 17 is a rear view of a main part showing a discharge guide state of the chute.
FIG. 18 is an exploded perspective view of a main part showing the configuration of the opening / closing means and the chute.
FIG. 19 (a) is a longitudinal sectional side view of a main part showing a connected state of a column.
(B) Longitudinal side view of the main part showing the divided state of the support
FIG. 20 is a front view of the boarding operation unit showing the grain discharging operation unit.
FIG. 21 is a block diagram illustrating a control configuration for grain discharge.
FIG. 22 is a side view of a main part showing a detection state of the first detection means.
FIG. 23 is a flowchart showing a control operation for discharging grains;
FIG. 24 is a flowchart showing a control operation for discharging grains;
[Explanation of symbols]
2 traveling aircraft
5 Threshing equipment
6 grain tank
30 lifting means
31 outlet
32 Opening / closing means
33 Shoots
69 control means

Claims (4)

The grain tank mounted on the traveling machine is moved up and down between a lower storage position for storing the grains from the threshing device and an upper discharge position for discharging the grains in the grain tank from the bottom outlet. A grain discharge structure of a combine equipped with lifting means,
At the bottom of the grain tank, a chute that guides the grains discharged from the discharge port downflow, a discharge guide state in which the guide lower side extends outside the machine, and a storage state in which the whole is stored in the machine. Switchable to allow the chute to switch from the stored state to the discharge guide state as the grain tank reaches the discharge position, and to allow the chute to appear in the stored state. A grain discharging structure of a combine equipped with control means for permitting the grain tank to descend from the discharging position to the storage position. Opening / closing means for opening and closing the discharge port is provided, and the control means allows an opening operation of the opening / closing means with the appearance of the discharge guide state of the chute, and presents a closed state of the opening / closing means. The combine grain discharging structure according to claim 1, wherein the structure is configured to allow the chute to be switched to the storage state in accordance with the condition. The control means switches the chute from the storage state to the discharge guide state based on the arrival of the grain tank at the discharge position, and the kernel based on the appearance of the storage state of the chute. The grain discharge structure of a combine according to claim 1 or 2, wherein the tank is configured to be lowered from the discharge position to the storage position. The control means opens and closes an opening / closing means for opening and closing the discharge port based on the appearance of the discharge guide state of the chute, and discharges the chute based on the appearance of the closed state of the opening / closing means. The combine grain discharging structure according to any one of claims 1 to 3, wherein the structure is configured to switch from the guide state to the storage state.

Images