JP5636182B2 - Combine discharge auger - Google Patents

Description

  According to the present invention, a discharge auger for discharging a stored grain is connected to a grain tank for storing the grain so as to be able to move up and down and turn freely, and the grain is discharged to the tip of the discharge auger. The present invention relates to a combine discharge auger that includes a discharge shooter that is pivotable in the vertical direction around the rotation base of the discharge shooter. More specifically, the discharge shooter has a ground angle with respect to a horizontal plane parallel to the ground and a discharge auger. The present invention relates to a combine discharge auger that can change a discharge auger angle with respect to an extension line and controls a ground angle or a discharge auger angle according to elevation of the discharge auger.

A conventional combine discharge auger is provided with a discharge shooter at its tip that discharges the transported grain in the discharge auger into a container of a transport dumper. By rotating by an operation, when the discharge auger is turned and raised and lowered, it facilitates efficient grain discharge from the grain tank of the combine into the container (for example, Patent Document 1 and Patent Document 2) )
Moreover, the controller controls so that the ground angle of the discharge shooter is within a predetermined range by an inclination sensor provided on the discharge shooter, and the discharge shooter is always directed downward, so that the grain is discharged without stagnation. There is also a thing (for example, patent document 3).

Japanese Patent Laid-Open No. 2001-120048 JP 2001-120049 A JP 2001-211731 A

However, in the combined discharge auger as in Patent Documents 1 and 2, for example, the discharge shooter is rotated to an arbitrary position by automatic control or remote operation, and the discharge auger angle is maintained while maintaining the angle of the discharge auger. When raising and lowering, the grain is discharged from the discharge shooter in a direction not intended by the operator, and there is a concern that the grain cannot be discharged into the container of the transport destination.
Further, in the combine discharge auger as in Patent Document 3, the ground angle of the discharge shooter is always directed downward so that the discharge shooter faces upward and the grains cannot be discharged from the discharge shooter. When the ground angle of the discharge shooter is horizontal, the grain is not sufficiently discharged from the discharge shooter with only the conveying force in the discharge auger, and the discharge shooter is always directed downward. The discharge shooter shuts off the grain conveyance path of the discharge auger, and the grain is not discharged from the discharge shooter. For this reason, there is a possibility that the discharge cannot be performed or clogging occurs, and workability is poor.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a combine discharge auger with improved workability that can reliably input the grain from the discharge chute into the transport destination and can prevent clogging of the grain in the discharge auger. It is.

For this reason, the invention according to claim 1 is configured such that a discharge auger for discharging the grain stored in the grain tank is continuously connected to be able to move up and down and swivel, and a grain is provided at the tip of the discharge auger. In a combine discharge auger having a discharge shooter that discharges in the vertical direction about the rotation base of the discharge shooter, the discharge shooter includes an angle with respect to a horizontal plane parallel to the ground, and an angle of the discharge auger The discharge auger angle with respect to the extension line can be changed, and the ground angle or the discharge auger angle is controlled in accordance with the raising and lowering of the discharge auger, so that the discharge auger can be raised by the predetermined discharge auger angle. Accordingly, the predetermined discharge auger angle is maintained until the set ground angle that is the set ground angle is reached, and the setting is performed. After reaching land angle, further with the increase in the discharge auger, and controls the pair discharge auger angle, and maintains the set ground angle.

According to the invention described in claim 1, communicated with continuously arranged vertically movably and pivotably discharge auger for discharging the savings distillation cereal kernels in grain tank, the distal end of the discharge auger, the grain In a combine discharge auger equipped with a discharge chute for discharging in the vertical direction around the rotation base of the discharge chute, the discharge chute is a pair of a ground angle with respect to a horizontal plane parallel to the ground , and an extension line of the discharge auger. The discharge auger angle can be changed, and the ground angle or the discharge auger angle is controlled according to the raising and lowering of the discharge auger. Grain clogging in the auger can be prevented. Therefore, it is possible to provide a combine discharge auger with improved workability and productivity.

Further , the discharge shooter maintains the predetermined ground auger angle until the set ground angle, which is the set ground angle, reaches the set ground angle as the discharge auger rises by the predetermined ground auger angle, and the set ground angle As the discharge auger is further raised, the angle against the discharge auger is controlled to maintain the set ground angle. Therefore, if the discharge auger is raised with the discharge shooter having the predetermined angle against the discharge auger, the discharge shooter The ground angle of the discharge shooter gradually decreases, but when the ground angle set by the discharge shooter is reached, the discharge auger angle of the discharge shooter is changed to maintain the ground angle set by the discharge shooter. As the auger rises, the grains in the discharge auger can be easily discharged from the discharge auger without always clogging. Therefore, it is possible to provide a combine discharge auger with improved workability.

It is the left view which showed an example of the combine which concerns on this invention. It is a top view of a combine. It is a right view of a combine. It is a front view of a combine. It is explanatory drawing of a vertical feed auger and a discharge auger. It is explanatory drawing of a discharge shooter. It is a front view of a discharge shooter rotation part. It is a control block diagram of the discharge shooter turning angle by the controller. It is a side surface schematic diagram of the discharge auger and the discharge shooter showing the angle control of the discharge shooter accompanying the raising and lowering of the discharge auger. It is a side surface schematic diagram of the discharge auger and the discharge shooter showing the angle control of the discharge shooter accompanying the rise of the discharge auger.

  Embodiments of the present invention will be described with reference to the drawings. The embodiment of the present invention can be arbitrarily changed within the scope of the claims. 1 is a left side view showing an example of a combine according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a right side view thereof, FIG. 4 is a front view thereof, and FIG. FIG. 6 and FIG. 6 are explanatory views of the discharge shooter.

  First, as shown in FIGS. 1 to 4, a combine 1 according to an embodiment of the present invention supports crawler type traveling devices 3 </ b> L and 3 </ b> R on the left and right of a track frame 2. The airframe frame 4 is erected. Further, the threshing unit 5 includes a handling cylinder 7 and a processing cylinder built in such a manner that a feed chain 6 is stretched.

  Below the threshing unit 5, a sorting device 8 for sorting the threshed grain is disposed, and a grain tank 10 for carrying the grain sorted by the sorting device 8 through the whipped cylinder 9, Provided behind the cabin 11. Further, a discharge auger 13 for carrying out the grains in the grain tank 10 to the outside of the machine is provided at the upper part of the combine 1, and at the rear end of the combine 1, a waste disposal processing unit 15 that faces the end of the waste chain 14 is provided. Be placed.

  Moreover, the cutting part 16 is formed in the front part of the body, and a cutting blade 17 and a cereal conveying mechanism (not shown) are provided. Further, a cabin 11 in which a round steering handle 18 and a driver's seat 19 are arranged is installed behind the cutting unit 16. Then, on the front part of the body frame 4 on the side of the cabin 11, the mounting table 20 that supports the cutting unit 16 so as to be rotatable up and down, and the cutting unit 16 on the mounting table 20 are interposed via the cutting frame 21. And a hydraulic cylinder 22 that moves up and down.

  Further, an engine 23 is disposed below the cabin 11 in the front part of the body frame 4, and the crawler type traveling devices 3 </ b> L and 3 </ b> R are driven by the power from the engine 23, and the cereals are combined 1. It is comprised so that it may cut continuously by the reaping part 16 from the front, and threshing by the threshing part 5.

  Next, as shown in FIG. 5, the discharge auger 13 is provided so as to be pivotable in the vertical direction around the rear part and pivotable in the horizontal direction. A hydraulic elevating cylinder 25 is provided to elevate and lower the section, and the base of the discharge auger 13 is connected to the upper end of the longitudinal feed auger 12 so as to be rotatable up and down around the rotation fulcrum axis.

  In addition, an electric turning motor 28 that rotates the longitudinal feed auger 12 around the axis via a pair of gears 26 and 27 is provided, and the longitudinal feed auger 12 and the discharge auger around the substantially vertical axis of the longitudinal feed auger 12. 13, the tip end of the discharge auger 13 is moved up and down by the elevating cylinder 25, and the tip end of the discharge auger 13 is turned left and right by the turning motor 28. Note that screw conveyors 29 and 30 are provided in the longitudinal feed auger 12 and the discharge auger 13.

  Reference numeral s1 denotes a turning angle detector such as a potentiometer installed on the longitudinal feed auger 12 for detecting the turning angle of the discharge auger 13, and reference numeral s2 denotes an elevation angle of the discharge auger 13 installed on the discharge auger 13. It is a lift angle detector such as a potentiometer.

  Further, as shown in FIG. 6, the discharge auger 13 is conveyed from the grain tank 10 through the longitudinal feed auger 12 to the distal end of the discharge auger 13 by the screw conveyor 30. The discharged shooter 31 that guides the discharging direction is rotatably attached while discharging the cereal grains out of the machine.

  The discharge shooter 31 includes a rotation fulcrum shaft 32 that is a rotation base in the lateral direction of the discharge auger 13 at a lower end of the discharge auger 13, and a side surface that is rotatably attached via the rotation fulcrum shaft 32. A discharge rotation portion 33 having a substantially inverted L-shape and a discharge cylinder 35 having a substantially square cross section and the like that is detachably fixed to the outer periphery of the distal end of the discharge rotation portion 33 via a fastener 34 such as a bolt. Is done.

  A bearing member 36 is detachably fixed to the upper surface of the outer periphery of the distal end of the discharge cylinder 35, and the distal end of the discharge auger 13 is rotatably supported by the bearing member 36. A rotating substrate 37 is fixed to the lower outer side, and a cylindrical shaft (not shown) that rotatably supports the rotating fulcrum shaft 32 is detachably fixed to the lower surface of the rotating substrate 37 via a fastener (not shown).

  In addition, a motor base 39 for attaching a rotation motor 38 for rotating the discharge shooter 31 is detachably fixed to a side surface of the rotation substrate 37 via a fastener (not shown), and is attached to a motor shaft 38a of the rotation motor 38. A small-diameter gear 40 to be attached is coupled to the gear 41 of the rotation fulcrum shaft 32, and left and right side plates (not shown) fixed to the left and right ends of the rotation fulcrum shaft 32 are fastened to the left and right inner side surfaces of the discharge rotation portion 33. When the rotation fulcrum shaft 32 is rotated by driving the rotation motor 38, the discharge rotation portion 33 and the discharge cylinder 35 are integrated with the rotation fulcrum shaft 32 into the discharge auger 13. In contrast, by rotating in the front-rear direction, the discharge direction of the grain from the discharge auger 13 can be guided in accordance with the elevation of the discharge auger 13.

  Next, the angle control of the discharge shooter, which is a feature of the present invention, will be described in detail. 7 is a front view of the discharge shooter rotating portion, FIG. 8 is a control block diagram of the rotation angle of the discharge shooter by the controller, and FIG. 9 is a side view of the discharge auger and the discharge shooter showing the angle control of the discharge shooter as the discharge auger moves up and down. It is a schematic diagram.

  As shown in FIG. 7, the discharge shooter 31 is provided with a ground angle detector s <b> 3 including an absolute rotary encoder on the side surface in the vicinity of the rotation fulcrum shaft 32. That is, the inclination angle of the discharge shooter 31 with respect to a horizontal plane parallel to the ground is detected as the ground angle α by the ground angle detector s3.

  Further, a discharge auger angle detector s4 such as a potentiometer is installed in the discharge shooter 31 so as to be connected to the rotation fulcrum shaft 32. Therefore, the inclination angle of the discharge shooter 31 with respect to the extension line of the discharge auger 13 is detected as the counter discharge auger angle θ by the counter discharge auger angle detector s4.

  As shown in FIG. 8, the above-mentioned ground angle detector s3 and anti-discharge auger angle detector s4, as well as the above-described turning angle detector s1 and elevation angle detector s2 of the discharge auger 13 are connected to the controller C. The Further, a rotation motor 38 of the discharge shooter 31 is connected to the controller C.

  The controller C is previously set and input such that the ground angle α of the discharge shooter 31 is, for example, 40 degrees regardless of the elevation angle of the discharge auger 13. The ground angle α set by the discharge shooter 31 can be arbitrarily set within a range of 20 to 60 degrees (details will be described later) with respect to the discharge auger 13 toward the outer side and the inner side of the machine body. Is done.

  Here, as shown in FIG. 9, for example, when the discharge auger 13 is in the up-and-down position a, the discharge shooter 31 is moved from the discharge auger 13 to the outside at an arbitrary discharge auger angle θ with a ground angle α of 40 degrees. When the discharge auger 13 is raised to the lift position b by the operator's operation when the grain is discharged into the container (conveyance destination), the lift angle of the discharge auger 13 by the lift angle detector s2 and the ground angle The ground angle of the discharge shooter 31 by the detector s3 and the anti-discharge auger angle θ of the discharge shooter 31 by the anti-discharge auger angle detector s4 are transmitted to the controller C.

That is, when the discharge auger 13 is in the lift position b, the discharge shooter 31 has a ground angle α smaller than 40 degrees while the lift auger angle θ of the lift position a is maintained.

  Therefore, the controller C drives the rotation motor 38 so that the discharge auger 13 has a ground angle α = 40 degrees at the elevation position B, and the discharge shooter 31 is moved from the discharge auger angle θ to the discharge auger angle θ. Rotate to angle θ1.

  Further, when the discharge auger 13 is lowered from the lift position a (arbitrary discharge auger angle θ with respect to the ground angle α = 40 degrees) to the lift position c, the discharge by the lift angle detector s2 is performed as described above. The elevation angle of the auger 13, the ground angle of the discharge shooter 31 by the ground angle detector s3, and the discharge auger angle θ of the discharge shooter 31 by the discharge auger angle detector s4 are transmitted to the controller C.

  In other words, in this case, when the discharge auger 13 is in the lift position C, the discharge shooter 31 is such that the ground angle α2 is larger than 40 degrees while the anti-discharge auger angle θ at the lift position a is maintained.

  Therefore, the controller C drives the rotation motor 38 so that the discharge auger 13 has the ground angle at the lift position C to the ground angle α = 40 degrees, and the discharge shooter 31 is discharged from the discharge auger angle θ. Rotate to auger angle θ2.

  With this configuration, the ground angle α of the discharge shooter 31 can be maintained by changing the discharge auger angle θ of the discharge shooter 31 regardless of the operating position of the discharge auger 13 that is raised and lowered. Thus, the grain can be reliably put into the transport destination such as a container from 31 without spilling the grain.

  In addition, the ground angle α of the discharge shooter 31 is within a range of 20 degrees to 60 degrees with respect to the discharge auger 13 toward the outer side and the inner side of the machine body regardless of the lift position of the discharge auger 13. Is preferred. This is because the grain conveyance path in the discharge auger 13 is shielded by the discharge shooter 31 and the grain conveyance is not clogged, and the grains in the discharge auger 13 are obtained by the conveying force of the screw conveyor 30. It can be easily discharged by its own weight, and can be efficiently discharged into the transport destination. In addition, the ground angle α of the discharge shooter 31 is set to 60 degrees because the research results that the transport grain whose fluidity depends on the moisture state is within an appropriate angle range in which the discharge shooter 31 is efficiently discharged. Is based.

  Next, as the discharge auger 13 rises, the ground angle α ′ of the discharge shooter 31 that is set so that the grains can be discharged can be maintained, and the discharge auger angle θ ′ of the discharge shooter 31 can be controlled. FIG. 10 is a schematic side view of the discharge auger and the discharge shooter showing the angle control of the discharge shooter as the discharge auger rises.

  In this case, for example, as shown in FIG. 10, when the discharge auger 13 is in the lifted position D, the ground angle α ′ of the discharge shooter 31 is, for example, an arbitrary 40 degrees (within a range of 20 degrees to 60 degrees). When the grain is discharged from the discharge auger 13 into the transport destination at an arbitrary predetermined discharge auger angle θ ′, the discharge auger 13 is raised by the operator's operation. For example, a set value in which the ground angle α ″ of the discharge shooter 31 is 30 degrees is input to the controller C in advance.

  For example, when the discharge auger 13 is raised to the lift position E, the lift angle of the discharge auger 13 by the lift angle detector s2, the ground angle of the discharge shooter 31 by the ground angle detector s3, and the discharge The auger angle detector s4 transmits the discharge auger angle θ ′ of the discharge shooter 31 to the controller C.

  That is, the ground angle α ′ of the discharge shooter 31 gradually decreases as the discharge auger 13 rises from the lift position d to the lift position e, but the controller C sets the ground angle α ′ set for the discharge shooter 31. The rotation motor 38 is not driven until the raising / lowering position e of the discharge auger 13 at which ′ is 30 degrees, and the discharge auger angle θ ′ of the discharge chute 31 is maintained.

  Next, when the discharge auger 13 is raised to the lift position beyond the lift position ho, the lift angle of the discharge auger 13 by the lift angle detector s2, the ground angle of the discharge shooter 31 by the ground angle detector s3, The counter discharge auger angle θ ′ of the discharge chute 31 by the counter discharge auger angle detector s4 is transmitted to the controller C.

  In other words, since the ground angle of the discharge shooter 31 is smaller than 30 degrees when the discharge auger 13 exceeds the lift position e, the controller C rotates so that the set ground angle α ″ is 30 degrees. The motor 38 is driven to rotate the discharge shooter 31 from the discharge auger angle θ ′ to the discharge auger angle θ1 ′.

  In the above example, the control of the discharge auger angle θ ′ of the discharge shooter 31 in the lift position of the discharge auger 13 has been described. However, the discharge auger 13 is moved to the lift position beyond the lift position. At the up and down position, the controller C moves the elevation angle of the discharge auger 13 by the elevation angle detector s2, the angle to the ground angle of the discharge shooter 31 by the ground angle detector s3, and the discharge auger angle detector. Based on the detection information of the angle of the discharge shooter 31 up to the discharge auger angle θ1 ′ by s4, the discharge shooter 31 drives the rotation motor 38 so that the set ground angle α ″ = 30 degrees and discharges. The shooter 31 is rotated.

  With this configuration, the ground angle of the discharge shooter 31 is less than 20 degrees in parallel with the rise of the discharge auger 13 while maintaining the discharge auger angle θ ′ as in the prior art (parallel to the ground). ) The angle is in the vicinity, and the grain is not discharged from the discharge chute 31 with the momentum of only the conveying force of the screw conveyor 30, and the grain is not clogged in the discharge chute 31 and the discharge auger 13.

  That is, when the discharge auger 13 is raised by the discharge shooter 31 having a predetermined discharge auger angle θ ′, the ground angle of the discharge shooter gradually decreases, but the discharge shooter 31 reaches the set ground angle α ″. Since the discharge auger angle θ ′ of the discharge shooter 31 is changed in order to maintain the set ground angle α ″ of the discharge shooter 31, the grains in the discharge auger 13 are changed as the discharge auger 13 rises. It can be easily discharged from the discharge auger 13 without clogging. In particular, when the transported grain is a wet material, the above effect is remarkable.

  As described in detail above, the discharge auger 13 of the combine 1 of this example is connected to the grain tank 10 for storing the grains, and the discharge auger 13 for discharging the stored grains is connected in a freely openable and liftable manner. In addition, the discharge shooter 31 for discharging the grains provided at the tip of the discharge auger 13 is provided so as to be rotatable in the vertical direction about the rotation fulcrum shaft 32 (rotation base) of the discharge shooter 31. The discharge shooter 31 makes it possible to change the ground angle α with respect to a horizontal plane parallel to the ground and the discharge auger angle θ with respect to the extended line of the discharge auger 13, and the ground angle α or The auger angle θ is controlled.

  In addition, when the discharge auger 13 is moved up and down, the discharge auger angle θ is controlled according to the maintenance of the ground angle α ″ set in the discharge shooter 31, and the discharge shooter 31 has a predetermined discharge auger angle θ. As the discharge auger 13 rises by ′, the predetermined discharge auger angle θ ′ is maintained until the set ground angle α ″ is reached, and after reaching the set ground angle α ″, further discharge is performed. As the auger 13 is raised, the discharge auger angle θ ′ is controlled to maintain the set ground angle α ″.

  The present invention can be applied to any combine equipped with a discharge auger provided with a discharge shooter that discharges grain at the tip.

DESCRIPTION OF SYMBOLS 12 Vertical auger 13 Discharge auger 31 Discharge shooter 32 Rotation fulcrum shaft 33 Discharge rotation part 35 Discharge cylinder s1 Turning angle detector s2 Lift angle detector s3 Ground angle detector s4 Discharge auger angle detector D, E, F Lift position α Ground angle θ V Discharge auger angle

Claims (1)

A discharge auger for discharging the grains stored in the grain tank is connected in a continuous manner so as to be able to move up and down and swivel, and a discharge shooter for discharging the grain is provided at the tip of the discharge auger. In a combine discharge auger that is pivotable in the vertical direction around the base,
The discharge shooter can change a ground angle with respect to a horizontal plane parallel to the ground and a discharge auger angle with respect to an extension line of the discharge auger, and the ground angle or the discharge auger according to the elevation of the discharge auger. Controlling the angle, and maintaining the predetermined anti-discharge auger angle until reaching the set ground angle which is the set ground angle as the discharge auger rises by the predetermined anti-discharge auger angle, After reaching the set ground angle, the combined discharge auger further maintains the set ground angle by controlling the discharge auger angle as the discharge auger rises .

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