JP2006014667A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester discharging grains stored in a grain tank without impairing the grains by elevating the grain tank with a simple constitution. <P>SOLUTION: This invention relates to the combine harvester provided with the grain tank 4 for storing grains on the frame 2 of a machine body, wherein the grain tank 4 has an openable outlet 4 on the bottom and guide frames 26, 26 on front and rear both sides of the tank 4 and the grain tank 4 is set liftably by an actuator 29 along the guide frames 26, 26. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a harvesting machine, and more particularly, to a configuration that raises a grain tank itself mounted on a combine so that the grain can be discharged without damaging the grain.

Conventionally, in a combine, a grain forced discharge device is provided together with a grain tank on the fuselage frame, and the threshed grain stored in the grain tank is discharged to the outside by the grain forced discharge device It had been. However, in the discharge operation using the grain forced discharge device, a discharge type auger with a screw type and a long conveying distance is used, so that the discharge time becomes long and the grain is soft like soil and so on. In the case of beans that are easily mixed with foreign matter, the grains are easily damaged, and there is a problem that the quality of the grains is reduced. Therefore, a technique has been proposed in which the grain tank is lifted upward from the machine frame without providing a forced grain discharging device, and the grain is allowed to flow naturally from the outlet provided in the side plate and discharged to the outside (for example, , See Patent Document 1).
JP 2003-61452 A

  However, in the technique disclosed in Patent Document 1, it is necessary to raise the grain tank that is full of grains at the time of discharging work, so that the center of gravity of the fuselage moves upward and moves to the left and right sides. Therefore, there was a risk that the aircraft would tip over simply by applying a force to the side during discharge work on a sloping ground or during discharge. Moreover, the structure which raises / lowers a grain tank has become complicated.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in Claim 1, in the combine provided with the grain tank which stores a grain on an airframe frame, while providing the opening-and-closing type discharge port in the bottom part of the said grain tank, on both the front and back sides of this grain tank A guide frame is disposed, and a grain tank is configured to be vertically movable by an actuator along the guide frame.

  According to a second aspect of the present invention, there is provided the combine according to the first aspect, wherein the grain tank is configured to move substantially upward while rotating.

  According to a third aspect of the present invention, the bottom plate of the Glen tank can be opened and closed.

  In Claim 4, it arrange | positions so that the discharge port can be pivotally supported below the bottom plate of the Glen tank, and the discharge port can be rotated to the outside of the grain tank and below the bottom plate. It is.

  According to a fifth aspect of the present invention, the body frame includes an outrigger.

  As effects of the present invention, the following effects can be obtained.

  In Claim 1, In the combine provided with the grain tank which stores a grain on a body frame, while providing the opening-and-closing type discharge port in the bottom of the grain tank, it is a guide frame on both the front and back sides of the grain tank. And the grain tank is configured to be moved up and down by an actuator along the guide frame, and in the state where the grain is stored in the grain tank, the grain tank is raised, and the discharge port The grain can be discharged from the outside. Therefore, the grain discharging apparatus provided with the discharge auger becomes unnecessary, and damage to the grain that may occur when the grain is conveyed can be prevented. In addition, with a simple configuration, the grain tank can be raised while preventing overturning, and the grain can be discharged.

  In claim 2, since the grain tank is configured to be movable substantially directly upward while rotating, the grain tank can be arranged in the lateral direction when the grain tank is raised, The overall height of the aircraft can be reduced. In addition, the amount of movement of the center of gravity is relatively small, and the body can be prevented from falling when the grain tank is raised.

  In Claim 3, since the bottom plate of the said Glen tank was comprised so that opening and closing was possible, shortening of the discharge | emission time of a grain can be aimed at by making the bottom part of a grain tank into the discharge port.

  In Claim 4, the discharge port rod is pivotally supported below the bottom plate of the Glen tank so as to be rotatable, and the discharge port rod is configured to be rotatable on the outside of the grain tank and below the bottom plate. Therefore, when the grain tank is raised and the discharging operation is performed, the grain flowing down from the bottom plate can be discharged to the transporting container while being guided so as not to be leaked with a broom. In addition, when traveling or harvesting, the basket can be stored under the Glen tank, so that it does not get in the way.

  In claim 5, since the body frame is provided with the outrigger, when the grain tank is raised and the discharging operation is performed, the body frame can be shifted to a fixed state to prevent the body from falling down. .

Next, embodiments of the invention will be described.
1 is a side view of a combine according to an embodiment of the present invention, FIG. 2 is a rear view of the same, FIG. 3 is a control circuit diagram, FIG. 4 is a rear view of the combine of another embodiment, and FIG. FIG. 6 is a view showing the configuration of the discharge port trough, and FIG. 7 is a rear view of the combine of another embodiment.

First, the overall structure of a combine according to an embodiment of the present invention will be described.
As shown in FIGS. 1 and 2, a machine frame 2 is placed on the crawler type traveling device 1, and a threshing unit 3 is mounted on the machine frame 2. A grain tank 4 is mounted on the side of the threshing unit 3, and an operation unit 5 is disposed in front of the grain tank 4.

  Further, a cutting unit 6 is connected to the front of the threshing unit 3 via a feeder house 7. In the cutting part 6, the platform 8 connected to the front part of the feeder house 7, the transverse feed auger 9 supported in the left-right direction inside the platform 8, and the cutting blade 10 provided horizontally at the front lower part of the transverse feed auger 9. , A weeding board 11 disposed at the front left and right ends of the platform 8, a scraping reel 12 provided above the platform 8, and the like. The grain scraped by the scraping reel 12 and cut by the cutting blade 10. The rice cake is sent to the feeder house 7 connected to the platform 8 by the transverse feed auger 9 and then conveyed to the threshing unit 3 via the conveyor disposed in the feeder house 7 to be threshed. Has been.

  Furthermore, a swing sorting device 13 is disposed below the threshing unit 3. Below the swing sorting device 13, the first conveyor 14 is installed horizontally, and the cereal conveyor 15 is communicated with the terminal portion of the first conveyor 14 so as to stand between the threshing unit 3 and the grain tank 4. ing.

  In the cereal conveyor 15, a conveyor chain 18 is wound between sprockets 16 and 17 pivotally supported on the upper and lower portions thereof, and a plurality of buckets 19, 19... Are arranged on the conveyor chain 18. Yes. The grain such as the first thing sorted by the rocking sorter 13 is stored in an arc-shaped receiving part at the lower part of the lifting conveyor 15, and the grain stored in the receiving part is a bucket 19 on the conveyor chain 18. And is transported to the top of the cereal conveyor 15 as it is.

  The upper part of the cereal conveyor 15 is communicated with the grain tank 4 via the connecting pipe 20, and the grain conveyed to the grain tank 4 is blown off by a rotating leveling disk (not shown) or the like. Thus, the grains are uniformly dispersed and stored in the grain tank 4.

Next, the structure of a grain tank is demonstrated using FIG. 1 and FIG.
The grain tank 4 is formed in a substantially rectangular parallelepiped shape, and an opening / closing plate configured to be slidable back and forth is provided with an insertion port 4a connected to the connecting pipe 20 at an upper part of a side plate on the left and right center side of the machine body. 21 can be opened and closed. That is, a cylinder (or motor) 22 is disposed as an actuator in the vicinity of the side plate inlet 4 a, the opening / closing plate 21 is connected to the cylinder 22, and the opening / closing plate 21 slides due to the expansion / contraction operation of the cylinder 22. Thus, the insertion port 4a is opened and closed.

  Further, a discharge port 4b is provided in the left and right central side of the bottom plate of the grain tank 4 and is configured to be opened and closed by an opening / closing plate 23 configured to be slidable back and forth. That is, a cylinder (or motor) 24 is provided as an actuator in the vicinity of the bottom plate outlet 4 b, the opening / closing plate 23 is connected to the cylinder 24, and the opening / closing plate 23 is slid by the expansion / contraction operation of the cylinder 24. The discharge port 4b is configured to be opened and closed. Note that the opening 4a and the outlet 4b are opened / closed by the expansion / contraction operation of the cylinders 22 and 24 by operating an opening / closing switch (lever) provided in the operation unit 5. Moreover, you may arrange | position a guide rod in the discharge port 4b.

  The grain tank 4 is configured to move up and down while being guided by the guide frames 26 and 26. The guide frames 26 and 26 are disposed on both front and rear sides of the grain tank 4 on the left and right center side of the machine body, and are erected on the machine body frame 2 in the vertical direction. The upper part of each of the front and rear guide frames 26 is slightly in the vicinity of the inlet 4a of the grain tank 4, that is, a length that does not interfere with the inlet 4a to the grain tank 4 when ascending. It is bent outward and upward by a length protruding in the direction, and then extended vertically upward, and then bent upward from the upper end of the cereal conveyor 15 and above the left and right central sides. A long hole (or groove) 26a is opened in the upper part of the guide frame 26 along the outer shape of the frame, and the front hole 26a of the front guide frame 26 is forward of the front side plate of the grain tank 4 from the upper part. The support shafts 27 and 28 protruding in the vertical direction are slidably inserted into the slot 26a of the rear guide frame 26. Similarly, the support shafts 27 and 28 are vertically parallel from the upper side of the rear side plate of the grain tank 4 to the rear side. The protruding support shafts 27 and 28 are slidably inserted, and upper portions of the left and right center sides of the grain tank 4 are supported by the guide frames 26 and 26. The lower part of the grain tank 4 is supported on a tank base (not shown).

  Further, between the grain tank 4 and the body frame 2, hydraulic cylinders 29 and 29 are arranged as actuators on both front and rear sides of the grain tank 4, and one end of each hydraulic cylinder 29 is fixed to the body frame 2. One end of the piston rod of the hydraulic cylinder 29 is attached to the left and right outer sides (the right side in the traveling direction) of the side plates on the front and rear sides of the grain tank 4.

  As shown in FIG. 3, the hydraulic cylinder 29 is connected to a switching valve 31 through an oil passage, and the switching valve 31 is connected to a hydraulic pump 32. The switching valve 31 is composed of an electromagnetic valve, and a solenoid 31 a constituting the switching valve 31 is connected to the control device 33. An operation switch 34 disposed in the operating unit 5 is connected to the control device 33, and the switching valve 31 is switched by the operation of the operation switch 34 so that the hydraulic cylinder 29 is expanded and contracted.

  With this configuration, when the operation switch 34 is operated to extend the hydraulic cylinders 29 and 29, the support shafts 27 and 28 of the grain tank 4 extend along the long holes 26 a opened in the guide frame 26. Slide upward. At this time, the cylinder 22 is actuated to close the open / close plate 21, and at the beginning of the rise, the grain tank 4 moves slightly outward and upward to avoid interference with the communication pipe 20, and then rises in the vertical direction. Further, when the support shaft 27 slides along the long hole 26a upward in the center of the left and right sides of the machine body and reaches the upper bent portion, it moves upward in the middle of the machine body, and the grain tank 4 is shown in FIG. When it rises while rotating clockwise and rises to its highest position, the grain tank 4 is in a state of being laid down sideways, strictly speaking, in an inclined state of falling outside (right side), and an outlet 4b that opens in the bottom plate. Will face the side of the aircraft and will be in the lowest position. Then, the transport container 82 placed on the transport vehicle 81 is positioned below the discharge port 4b, and in this state, the open / close lever 23 is operated to slide the open / close plate 23 and open the discharge port 4b. The grains in the tank 4 naturally flow down from the discharge port 4 b and are discharged to the discharge container 82.

  Therefore, the grain tank 4 can be moved up and down with a simple configuration, and the grain in the grain tank 4 can be discharged in a short time, and the forced grain discharge provided with the discharge auger conventionally used in the grain tank It is possible to prevent grain damage that may occur during transportation by the discharge auger without using an apparatus. When the grain tank 4 is raised and the grain is discharged, the grain tank 4 is raised in the left-right direction of the machine body without moving as far as possible from the machine body, and the center-of-gravity movement amount in the left-right direction of the machine body Can be prevented from falling. Further, since the grain tank 4 is rotated in the substantially horizontal direction at the uppermost position (discharge position), the entire height of the machine body can be suppressed and the machine body can be prevented from falling even during the discharge operation.

  By the way, in the configuration of the grain tank 4, as shown in FIG. 3, a pressure sensor 35 serving as means for detecting the hydraulic pressure of the hydraulic cylinder 29 is connected to an oil passage connecting the hydraulic cylinder 29 and the switching valve 31. Has been. Further, a stroke sensor 36 serving as means for detecting the expansion / contraction operation of the hydraulic cylinder 29 is provided, and the pressure sensor 35 and the stroke sensor 36 are respectively connected to the control device 33. And the gravity center position of a body is measured and calculated from the movement amount and the tank load of the grain tank 4 obtained based on the detection value of the pressure sensor 35 and the stroke sensor 36.

  Further, an inclination sensor 37 and an alarm device 38 provided on the body frame 2 are connected to the control device 33, and the overturn angle of the body is calculated and compared from the detected value of the inclination sensor 37 and the center of gravity position of the body. It is comprised so that. And when the grain tank 4 rises, it is configured to issue an alarm by the alarm device 38 to stop the rise of the grain tank 4 before reaching the tipping angle of the machine body at this time, thereby preventing the machine body from falling over. It is illustrated.

  Further, in the configuration shown in FIG. 4, support frames 41 and 41 are erected on the machine body frame 2 on both the front and rear sides of the grain tank 4 on the left and right outer sides of the machine body, and the grain tank is disposed above the support frames 41 and 41. Both the front and rear sides of 4 are pivotally supported by a support shaft 42. The hydraulic cylinders 29 and 29 are disposed between the grain tank 4 and the machine body frame 2, and one ends of the hydraulic cylinders 29 and 29 are attached to brackets fixed to the machine body frame 2. One end of the 29 piston rods is attached to the front side plate of the grain tank 4 and the left and right outer ends of the machine body of the rear side plate.

  With this configuration, when the hydraulic cylinder 29 is extended, the grain tank 4 is rotated counterclockwise in FIG. 4 about the support shaft 42. At this time, the tank base disposed between the bottom surface of the grain tank 4 and the machine body frame 2 is removed, or the grain tank 4 is raised once and then rotated. And in the state which rotated the grain tank 4 substantially horizontally, the container 82 for conveyance is arrange | positioned under the discharge port 4b opened to the baseplate, and the opening-and-closing lever is operated in this state, and the opening-and-closing plate 23 is rotated. Then, by opening the outlet 4b of the grain tank, the grains in the grain tank 4 naturally flow down from the outlet 4b and are discharged to the discharge container 82. Therefore, when the grain tank 4 is raised and the grain discharging operation is performed, the overall height of the machine body can be suppressed and the fall can be prevented.

  Moreover, in the structure shown by FIG. 5, the said grain tank 4 comprises the discharge port 4c by comprising the bottom plate 40 so that rotation up and down is possible and opening and closing a lower part. That is, the bottom plate 40 of the grain tank 4 is pivotally supported by the support shaft 52 so that the side portion in the front-rear direction located at the left and right center side of the machine body, that is, the left end in the traveling direction, and the cylinder 51 as an actuator. One end is disposed on the front and rear side plates of the grain tank 4, the other end of the cylinder 51 is connected to the lower front and rear surfaces of the bottom plate 40, and the bottom plate 40 is centered on the support shaft 52 by the expansion and contraction of the cylinder 51. Is rotated in the vertical direction, and the left and right outer sides of the grain tank 4, that is, the lower right end is opened and closed to form a discharge port 4 c. When both the front and rear sides of the bottom plate 40 are bent upwards according to the outer surfaces of the front and rear side plates of the grain tank 4 to form shielding plates 40a and 40a, the bottom plate 40 rotates downward and the discharge port 4c is opened. The grain in the grain tank 4 does not leak from both the front and rear sides, and flows down to the transport container 82 arranged on the outer side of the machine body via the outlet port 55. The flow rate of the grains flowing down from the discharge port 4 c is made possible by adjusting the amount of rotation of the bottom plate 40, and the rotation of the bottom plate 40 due to the expansion and contraction operation of the cylinder 51 is disposed in the operating unit 5. This is done by operating the open / close lever.

  The discharge port rod 55 is configured to be rotatably attached to the outside of the grain tank 4 and below the bottom plate 40. That is, as shown in FIG. 6, the discharge port rod 55 is bent upward at both the front and rear sides so as to be concave in cross-section, and is tapered from the discharge port 4 c so as to have a trapezoidal shape in plan view, and flows down from the discharge port 4 c. It is comprised so that it can discharge | emit so that a grain may be collected in the front and back center side.

  And under the grain tank 4, the spindle 57 is arrange | positioned in the front-back direction at the left-right outer side of the body of the bottom plate 40, and the end of the discharge port rod 55 is supported by this spindle 57 so that rotation is possible. Further, springs 58 and 58 are provided between the front and rear plates of the discharge port basket 55 and the front and rear side plates of the grain tank 4, respectively. It is urged to rotate to the 4 side. That is, during the discharging operation, when the discharge port rod 55 is rotated counterclockwise in FIG. 6 (a) about the support shaft 57, the bottom plate is held in contact with the bottom plate 40 of the grain tank 4. The When the discharge port 4c is thus opened, the grain can flow down from the discharge port 4c along the bottom plate 40 and the discharge port rod 55, and the grain can be guided to the transport container 82. Conversely, when the discharge operation is completed, the discharge port 4c is closed, the discharge port rod 55 is rotated clockwise about the support shaft 57, and is held in contact with the bottom plate 40 by the urging force of the spring 58. The In this state, the discharge port rod 55 does not protrude sideways and is stored below the grain tank 4 so as not to get in the way. However, the discharge port rod 55 can be configured to slide outward along the bottom plate 40. Further, the discharge port rod 55 can be applied to the embodiments of FIGS.

  The grain tank 4 is configured to move up and down while being guided by a pair of upper and lower guide frames 60. A pair of upper and lower guide frames 60 and 60 are respectively arranged on both front and rear sides of the grain tank 4, and fixed to support frames 61 and 61 erected on the machine body frame 2, respectively, and tip portions thereof extend outward and upward. Has been issued. Further, a long hole (or groove) 60a is opened in the guide frame 60 along the outer shape of the frame, and the support shafts 62 · projecting on the front and rear side plates of the grain tank 4 in the long hole 60a. Each 63 is slidably inserted. Thus, the grain tank 4 is supported on the guide frame 60.

  Between the grain tank 4 and the machine frame 2 (or the front and rear guide frames 60 and 60), hydraulic cylinders 29 and 29 are arranged as actuators, respectively, and one end of the hydraulic cylinder 29 is fixed to the machine frame 2. One end of the piston rod of the hydraulic cylinder 29 is attached to the front and rear side plates. In addition, raising / lowering of the grain tank 4 by the expansion / contraction operation | movement of the hydraulic cylinder 29 is performed by operation of the operation switch 34 as mentioned above.

  The body frame 2 is provided with an outrigger 65 slidable in the left-right direction. The outrigger 65 is connected to the control device 33 of the hydraulic cylinder 29, and is extended outward by a predetermined amount on the basis of the detected value of the tilt sensor 37 before the hydraulic cylinder 29 is extended, so that the attitude of the fuselage Is configured to control. Thus, the body is prevented from falling when the grain tank 4 is raised.

  With this configuration, when the operation switch 34 is operated to extend the hydraulic cylinder 29, the support shafts 62 and 63 of the grain tank 4 slide in the long holes 60a opened in the guide frame 60. Then, the grain tank 4 is raised upward and outward along the guide frame 60. And the container 82 for conveyance is located under the discharge port 4c, the opening / closing lever of the discharge port 4c is operated in this state, the bottom plate 40 is rotated downward, and the discharge port 4c is opened, thereby the grain tank 4 The grains inside flow down naturally from the discharge port 4 b and are discharged to the discharge container 82 through the discharge port ridge 55. In addition, the flow rate of the grain flowing down from the discharge port 4c can be adjusted by adjusting the amount of rotation of the bottom plate 40.

  Therefore, the grain tank 4 can be raised and lowered with a simple configuration and discharged without damaging the grain in the grain tank 4. In addition, since the bottom plate 40 of the grain tank 4 is rotated so that the grain can be discharged from the bottom, the grain can be discharged from the grain tank 4 to the outside in a shorter time.

  Moreover, in the structure shown by FIG. 7, the said grain tank 4 is comprised so that raising / lowering is possible along the support frame 70 comprised in the multistage type. In this embodiment, the support frame 70 is composed of a first frame 71, a second frame 72, and a third frame 73, and is configured in a three-stage manner. The second frame 72 can be stored. That is, the first frame 71, the second frame 72, and the third frame 73 are each configured in a pipe shape so that the first frame 71 can be accommodated with a slightly smaller diameter than the second frame 72. It can be stored with a slightly smaller diameter than the frame 73. The support frames 70 are disposed on both the front, rear, left and right sides of the grain tank 4, and the front and rear support frames 70 are connected by a connection frame 74 fixed to the upper end of the first frame 71. The grain tank 4 is fixed at the center of the connecting frame 74, and hydraulic cylinders 29 and 29 are provided between the front and rear ends and the body frame 2. However, the hydraulic cylinders 29 may be arranged at the four corners.

  As a result, when the hydraulic cylinder 29 is extended, the support frame 70 extends upward from the third frame 73 in the order of the second frame 72 and the first frame 71, and the grain tank 4 moves straight along the support frame 70. Ascend upward. And the grain in the grain tank 4 is discharged | emitted to the container 82 for the conveyance arrange | positioned in the lower side via the outlet mouth hook 55 by making the outlet mouth bowl 55 provided in the outlet 4c protrude sideways. It becomes possible to do. When the hydraulic cylinder 29 is contracted, the second frame 72 is stored in the third frame 73, and at the same time, the first frame 71 is stored in the second frame 72. It becomes substantially the same height as the grain tank 4. That is, since the support frame 70 does not protrude above the grain tank 4, the height of the machine body during travel can be suppressed.

The side view of the combine which concerns on one Example of this invention. Similarly rear view. FIG. The rear view of the combine of another Example. The rear view of the combine of another Example. The figure which shows the structure of the discharge port rod. (A) Rear view. (B) Side view. The rear view of the combine of another Example.

Explanation of symbols

2 Airframe frame 4 Grain tank 4b Discharge port 26 Guide frame 28 Hydraulic cylinder 40 Bottom plate 55 Discharge port rod 65 Outrigger

Claims (5)

  In a combine provided with a grain tank for storing grains on the machine frame, an open / close outlet is provided at the bottom of the grain tank, and guide frames are disposed on both front and rear sides of the grain tank, A combine comprising a grain tank that can be moved up and down by an actuator along a guide frame.   The combine according to claim 1, wherein the combiner is configured to be movable substantially directly upward while rotating the Glen tank.   The combine according to claim 1, wherein the bottom plate of the Glen tank is configured to be openable and closable.   The discharge port rod is pivotally supported below the bottom plate of the Glen tank so as to be rotatable, and the discharge port rod is configured to be rotatable on the outside of the grain tank and below the bottom plate. 3. Combine according to 3. The combine according to any one of claims 1 to 4, wherein the body frame includes an outrigger.

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