JP2006014665A - Reaping device of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reaping device capable of preventing cereal stems from slipping off, by surely taking in the cereal stems by conveyor devices regardless of whether the stems on a cultivated field are long or short. <P>SOLUTION: This reaping device of a combine harvester has a plurality of reaping units 20 each of which is composed of a pair of right and left dividers 31, 31, a pair of the right and left conveyor devices 32 arranged at the rear of the dividers 31, 31, and a reaping blade 35 arranged under the conveyor devices 32 as the reaping unit 20, wherein each of the conveyor devices 32 has a lower conveyor case 33 and an upper conveyor case 34 positioned over the lower conveyor case 33 and is structured so that the upper conveyor case 34 is raised and lowered against the lower conveyor case 33. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a configuration of a reaping device in which a plurality of reaping units are mounted on the front portion of a combine.

Conventionally, in a combine, instead of providing a scraping reel and a cutting blade at the front end of a platform of a cutting device provided at the front of the machine body, a cutting device composed of a plurality of cutting units is mounted as a row crop header device for cutting soybeans and the like. Is known. The reaping unit of the reaping device includes a divider, a pair of left and right conveying devices disposed behind the divider, a cutting blade disposed below the conveying device, and the like. An upper transfer case disposed above the lower transfer case, and a divider with a tine-attached transfer chain installed in the left and right pair of lower transfer cases and a tine-attached transfer chain installed in the upper transfer case. It was configured to take in the cereals that had been weeded and transport them backward (see, for example, Patent Document 1).
No. 06-28985

  However, in the cutting unit of the conventional reaping device, the position of the upper carrying case is fixed with respect to the lower carrying case, that is, the interval between the lower carrying case and the upper carrying case is always constant. Depending on the length of the cocoon, the cereal could not be taken in by the transport device, and there was a risk of spillage of the cereal.

  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, the pair of left and right dividers, the pair of left and right conveying devices disposed behind the dividers, and the cutting blade disposed below the conveying device are used as one reaping unit as the reaping unit. In the combine harvesting device including a plurality of units, the transport device includes a lower transport case and an upper transport case disposed above the lower transport case, and the upper transport case is configured to be movable up and down with respect to the lower transport case. Is.

  According to a second aspect of the present invention, the upper transport case can be moved up and down by driving an actuator, and the actuator is connected to operating means disposed in the operating section.

  According to a third aspect of the present invention, there is provided a detecting means for detecting the cocoon length of the cereal on the conveying device, the detecting means is connected to the actuator, and the upper conveying case is moved up and down in accordance with a detection value of the cocoon length detecting means. It is composed.

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

  In claim 1, a pair of left and right dividers, a pair of left and right conveying devices disposed behind the dividers, and a cutting blade disposed below the conveying device are used as one reaping unit. In the combine harvester having a plurality, the transport device includes a lower transport case and an upper transport case disposed above the lower transport case, and the upper transport case is configured to be movable up and down with respect to the lower transport case. The height of the upper transport case can be adjusted in accordance with the length of the grain culm in the field. Therefore, by lifting and fixing the upper transport case at the most appropriate height position, the transporter can reliably take in the cereal and transport it backward, even if the culm length of the cereal is short Accordingly, the upper transport case can be lowered and held and transported to prevent spilling of the cereal.

  In the present invention, the upper transport case can be moved up and down by driving an actuator, and the actuator is connected to the operating means disposed in the operation unit. The distance between the transfer case and the transfer case can be easily adjusted from the operating unit even during the cutting operation. Therefore, even when the culm length differs in the field, the operator can adjust the interval between the lower transport case and the upper transport case without interruption, and thus can prevent spillage of the culms. .

  According to a third aspect of the present invention, there is provided a detecting means for detecting the cocoon length of the cereal on the conveying device, the detecting means is connected to the actuator, and the upper conveying case is moved up and down in accordance with a detection value of the cocoon length detecting means. Since it comprised, the space | interval between the lower conveyance case 33 and the upper conveyance case 34 can always be kept at the optimal space | interval reliably according to the culm length of the grain culm of a field, and prevents the spilling of the culm Can do. In addition, since no operation by the operator is required, it is possible to prevent spillage of cereals due to forgetting to operate.

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 plan view, FIG. 3 is a side view of a cutting unit, FIG. 4 is a plan view of a drive shaft portion, and FIG. FIG. 6 is a side sectional view showing another embodiment of the conveying apparatus, and FIG. 7 is a side sectional view showing another embodiment of the conveying apparatus.

  First, the whole structure of the combine to which the cutting device according to the present invention is applied will be described with reference to FIGS. 1 and 2. In addition, in a present Example, it demonstrates using the combine for soybeans.

  A machine frame 2 is placed on the crawler type traveling devices 1, 1, and a threshing device 3 is mounted on the machine frame 2. A grain tank 4 is mounted on the side of the threshing device 3, and an operation unit 5 is disposed in front of the grain tank 4. Further, a reaping device 6 is provided in front of the threshing device 3.

  Further, an oscillating sorting device 7 is arranged below the threshing unit 2, and oscillated from a first conveyor horizontally provided below the oscillating sorting device 7 via a bucket type threshing conveyor 8. Fine grains such as the first thing sorted by the sorting device 7 are transported to the grain tank 4 and stored. A screw-type carry-out conveyor is mounted below the grain tank 4, and a terminal case is provided at the bottom of the grain discharger 9, which is a bucket-type elevator that stands up at the rear part of the carry-out conveyor. It is communicated through.

  A base portion of a conveyor type discharging device 11 is communicated with an upper portion of the grain discharging device 9 via a relay conveying device 10 so that the grains in the grain tank 4 are discharged to the outside by the conveyor type discharging device 11. It has become. The conveyor-type discharge device 11 is configured to be capable of turning up and down and turning.

  Next, the reaping device 6 will be described.

  As shown in FIGS. 1 and 2, the reaping device 6 is composed of a plurality of, in this embodiment, three reaping units 20, 20, 20, a platform 21, a transverse feed auger 22, a feeder house 23, etc. A platform 21 is fixed to the front end of the feeder house 23 communicated with the threshing device 3, and a lateral feed auger 22 is horizontally installed in the platform 21. Then, mowing units 20, 20, 20 arranged side by side in the left-right direction are respectively attached to the front end of the platform 21, and the mowing cereals harvested by the mowing units 20, 20, 20 and conveyed rearward are laterally fed. The auger 22 feeds the rear, and is transported to the threshing apparatus 3 by a transport conveyor 24 built in the feeder house 23. Further, a cylinder 25 is interposed between the feeder house 23 and the machine body frame 2, and the reaping device 6 is configured to be movable up and down by the expansion and contraction operation of the cylinder 25.

  As shown in FIGS. 3 and 4, the mowing unit 20 includes a divider 31, 31 having a weed culm in a V-shape in plan view at the front end of the support frame 50, and a grain that has been divided by the divider 31, 31. The platform 32 includes a transport device 32 that transports the leaf stem portion of the bamboo basket rearward and upward, and a cutting blade 35 that cuts the stem portion of the cereal straw transported by the transport device 32 near the ground on the transport start end side. A main frame 36 fixed to the front end of the frame 26 is attached.

  On the main frame 36, a guide rail 41 having a U-shaped cross-sectional view extending in the left-right direction is provided horizontally, and a slide frame 42 is slidably inserted in the guide rail 41 in the left-right direction. Support bodies 43 and 43 are arranged on the slide frame 42 with an appropriate interval. A drive shaft 44 of the cutting unit 20 is mounted between the support bodies 43 and 43, and a transmission pipe 45 is fitted around the drive shaft 44. Is pivotally supported with respect to the support bodies 43. The drive shaft 44 is connected to the drive shaft 44 (or the input shaft) of the adjacent cutting unit 20 by forming splines 44a and 44a at both ends thereof and fitting the spline coupling 39 to the splines 44a.

  Gear cases 46 and 46 are provided in the middle portion of the transmission pipe 45 with an appropriate interval, and support pipes 48 and 48 having a transmission shaft 47 provided therein are erected upward from the gear cases 46 and 46. Conveying frames 49 and 49 are fixed to the upper ends of the support pipes 48 and 48, and the conveying device 32 is attached to the conveying frames 49 and 49. The rear ends of the support frames 50 and 50 are fixed to the gear cases 46 and 46, and dividers 31 and 31 are attached to the front ends of the support frames 50 and 50 extending forward.

  An actuator 51 such as a cylinder or a motor is connected to the support bodies 43 and 43, and the operation of the actuator 51 causes the conveying device 32 and the dividers 31 and 31 provided on the slide frame 42 to move along the guide rail 41. It is configured to slide in the left-right direction. The actuator 51 is connected to an operation switch (not shown) disposed in the operation unit 5 and is operated by the operation of the operation switch to move the transport device 32 and the dividers 31 and 31 in the left-right direction. ing. This makes it possible to easily adjust the left and right positions of the conveying device 32 and the dividers 31 and 31 in accordance with the position of the grain culm in the field, even during the harvesting operation, and prevent uncut cereals from being harvested. Further, the transport device 32 and the dividers 31 and 31 are configured to be rotatable up and down around the drive shaft 44.

  The transfer device 32 includes a pair of left and right lower transfer cases 33 and 33 and upper transfer cases 34 and 34. The lower transfer cases 33 and 33 are fixed on transfer frames 49 and 49, and the lower transfer cases 33 and 33 are fixed. Upper transfer cases 34 and 34 are supported in parallel on the cases 33 and 33 with appropriate intervals. Further, the transport chain 53 with the tines 53a, 53a,... Attached to the lower transport cases 33, 33, and the transport chains 54, 54 with the tines 54a, 54a attached to the upper transport cases 34, 34 are also provided. The conveying device 32 is rotated by the dividers 31 and 31 by rotating the conveying chains 53 and 53 of the lower conveying cases 33 and 33 and the conveying chains 54 and 54 of the upper conveying cases 34 and 34 in opposite directions to each other. The guided culm is taken backward, and the culm after being cut by the cutting blade 35 is conveyed toward the lateral feed auger 22.

  Here, a support structure of the upper transport case 34 in the transport device 32 will be described. In addition, since the lower conveyance cases 33 and 33 and the upper conveyance cases 34 and 34 are symmetrically configured, only the lower conveyance case 33 and the upper conveyance case 34 will be described.

  As shown in FIG. 5, support ribs 56 and 56 are provided on the front upper surface and the rear upper surface of the lower conveyance case 33 so as to protrude upward, and each support rod 56 has a plurality of, preferably three or more pin holes. 56a, 56a, and 56a are provided in a direction perpendicular to the axial center with appropriate intervals. Also, bosses 57 and 57 are provided on the front lower surface and the rear lower surface of the upper transport case 34 so as to correspond to the support rods 56 and 56 so as to protrude downward, and each boss 57 has an axial center. A pin hole 57a is provided in a direction perpendicular to.

  Then, the bosses 57 and 57 of the upper transport case 34 are fitted into the support rods 56 and 56 on the lower transport case 33 fixed to the transport frame 49, and the pin holes 57a and 57a of the bosses 57 and 57 are inserted into the support rods 56 and 57. The upper transport case 34 is supported by the lower transport case 33 so that the vertical position of the upper transport case 34 can be adjusted by inserting the pins 58 and 58 in accordance with the arbitrary 56 pin holes 56a and 56a. Yes.

  A spline boss 47a is formed at the upper end of the transmission shaft 47 extending from the lower transfer case 33 toward the upper transfer case 34, and a spline shaft 59 extending from the upper transfer case 34 is formed on the spline boss 47a. It is configured to be inserted so as to be vertically slidable. In this way, the driving force of the drive shaft 44 can be transmitted from the transmission shaft 47 to the drive sprocket 61 of the transport chain 53 via the bevel gear in the gear case 46, and the spline regardless of the locking position of the upper transport case 34. It can be transmitted to the drive sprocket 62 of the transport chain 54 via the shaft 59. The spline boss 47a and the spline shaft 59 are covered with a stretchable boot 63 formed of a bellows between the lower transport case 33 and the upper transport case 34 to prevent intrusion of dust and the like.

  In such a configuration, with the pin 58 removed from the pin holes 57a and 57a of the bosses 57 and 57 and the arbitrary pin holes 56a and 56a of the support rods 56 and 56, the upper transport case 34 is attached to the support rods 56 and 56. The pin holes 57a and 57a of the bosses 57 and 57 are aligned with the different pin holes 56a and 56a of the support rods 56 and 56, and the pin 58 is inserted again, and the upper transport case 34 is locked. By doing so, it is possible to change the interval between the lower transfer case 33 and the upper transfer case 34.

  Therefore, in the transfer device 32, the distance between the lower transfer case 33 and the upper transfer case 34 is adjusted according to the culm length of the grain culm in the field, that is, the vertical position of the upper transfer case 34 with respect to the lower transfer case 33 is adjusted. Thus, the lower transfer case 33 can hold an appropriate position on the stock market side, and the upper transfer case 34 can hold a portion where a leaf or a fruit is positioned. Therefore, the cereal can be reliably taken back, and spillage of the cereal can be prevented even when the culm length is short.

  In the configuration shown in FIG. 6, screw bosses 65 are provided on the front upper surface and the rear upper surface of the lower transport case 33 so as to protrude upward. Motors 66 and 66 are provided as actuators at the front and rear portions of the upper transport case 34, and screws 67 and 67 project downward on the drive shafts of the motors 66 and 66 so as to correspond to the screw bosses 65 and 65, respectively. It is attached as follows.

  The screws 67 and 67 protruding from the motors 66 and 66 in the upper transport case 34 are rotated by the rotational drive of the motors 66 and 66 and screwed into the screw bosses 65 and 65 on the lower transport case 33, The upper transport case 34 is configured to be supported by the lower transport case 33. The motors 66 and 66 are connected to an operation switch 68 disposed in the operation unit 5 and are driven to rotate by operation of the operation switch 68.

  In such a configuration, in a state where the screws 67 and 67 of the motors 66 and 66 are screwed to the screw bosses 65 and 65, the screw 67 with respect to the screw bosses 65 and 65 is rotated by operating the operation switch 68 to rotate the motor. -The screwing position of 67 moves up and down, and the upper transport case 34 moves up and down in parallel with the lower transport case 33. At this time, the other lower transfer case 33 and upper transfer case 34 are also raised and lowered in the same manner. However, the actuator for adjusting the vertical movement of the upper transport case 34 is not limited to a motor, and a cylinder or the like can also be used. In this embodiment, only the upper transport case 34 can be adjusted in the vertical position, but the lower transport case 33 can also be configured so that the position can be adjusted in accordance with the shape of the stock company.

  Therefore, in the transfer device 32, the interval between the lower transfer case 33 and the upper transfer case 34 can be easily adjusted from the operating unit 5 in accordance with the culm length of the grain culm in the field even during the cutting operation. Therefore, even when the culm length differs in the field, the operator can adjust the interval between the lower transport case 33 and the upper transport case 34 without interrupting the operation and prevent spilling of the culm. it can.

  Further, in the configuration shown in FIG. 7, a cocoon length detection sensor 71 is provided on the upper transport case 34 as detection means for detecting the cocoon length of the cereals in the field, and the cocoon length detection sensor 71 and the motors 66 and 66 are connected to the controller. 72 is connected. Then, the transport device 32 rotates the motors 66 and 66 according to the detection value of the saddle length detection sensor 71 so that the distance between the lower transport case 33 and the upper transport case 34 becomes an optimum distance. 34 is configured to move up and down. Specifically, the upper end of the culm is detected by the culm length detection sensor 71, and the motor 66 is driven to raise and lower the upper transport case 34 so as to hold a position lower than the upper end of the culm by a set length.

  Therefore, in the transport device 32, the upper transport case 34 is always raised and lowered in accordance with the length of the culm in the field, so that the upper transport case 34 can reliably hold the upper part of the culm and prevent spilling of the culm. can do. In addition, since no operation by the operator is required, it is possible to prevent spillage of cereals due to forgetting to operate.

The side view of the combine which concerns on one Example of this invention. FIG. The side view of a cutting unit. The top view of a drive-shaft part. Side surface sectional drawing of a conveying apparatus. Side surface sectional drawing which shows another Example of a conveying apparatus. Side surface sectional drawing which shows another Example of a conveying apparatus.

Explanation of symbols

20 Cutting unit 31 Divider 32 Transfer device 33 Lower transfer case 34 Upper transfer case 35 Cutting blade

Claims (3)

  Combine harvester comprising a plurality of harvesting units, each comprising a pair of left and right dividers, a pair of left and right conveying devices disposed behind the dividers, and a cutting blade disposed below the conveying device. The combine harvester is characterized in that the transport device includes a lower transport case and an upper transport case disposed above the lower transport case, and the upper transport case is configured to be movable up and down relative to the lower transport case. apparatus.   2. The combine reaping device according to claim 1, wherein the upper transport case can be moved up and down by driving an actuator, and the actuator is connected to operating means disposed in a driving section. A detection means for detecting the culm length of the corn straw is provided on the transport device, the detection means is connected to the actuator, and the upper transport case is moved up and down according to the detection value of the culm length detection means. The combine harvester according to claim 2.

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