JP6257492B2 - Self-removing combine - Google Patents

Description

  The present invention relates to a self-detaching combine that includes a weeding tool for weeding planted cereal and a pulling device provided in a posture along the traveling direction of the aircraft.

  As the self-decomposing combine as described above, for example, the one described in Patent Document 1 is already known. The self-decomposing combine described in Patent Document 1 causes a weeding tool for weeding a planted cereal and a stem culm and causing the planted culm to be raised in a state in which the claws protrude in the lateral direction of the aircraft. An elevating device, and a vertical turning-type elevating device for erecting the planted cereal with the nail protruding toward the front of the machine body.

  The stalk raising device has a plurality of raising nails (in the literature, “stalk raising nail”) that works and acts on the planted cereals that have been weeded with the weeding tool. According to such a self-decomposing combine, even when the planted cereal is lying down, the planted cereal that has fallen over is caused by the stem and caused by the device, so that the cutting work at the time of lodging is easily performed Can do.

JP 2014-45670 A

  However, in the self-decomposing combine described in Patent Document 1, depending on the degree of lodging of the planted cereal, the planted cereal is pulled by the weeding tool before the raising claw causes the planted cereal to act. There is room for improvement in that it can be overtaken and causes the planted cereals to fall well.

  In view of the above situation, there is a demand for a self-removing combine that can satisfactorily cause planted cereals that have fallen.

The feature of the present invention is that
A weeding tool for weeding cereals,
A plurality of raising claws that act on the planted cereals that have been weeded with the weeding tool, and an endless rotating body that is attached to the plurality of raising claws and is rotatable about an axis extending in the left-right direction. And a pulling device provided in a posture along the traveling direction of the aircraft,
An opening that opens rearward is formed in the weeding implement,
The pulling device is configured such that the endless rotating body rotates in a state in which the pulling claw passes through the opening .
The left and right parts of the weeding tool are constituted by left and right bar-like members arranged in a rearwardly expanded state and a rearwardly raised state, and the opening is formed between the left and right bar-like members,
Left and right mounting plates that support the lower end portion of the pulling device on the front end portion of the weeding tool frame extending back and forth behind the lower end portion of the pulling device are provided,
Between the lower end portion of the pulling device and the front end portion of the weeding tool frame, the rotation trajectory of the pulling claw is covered by the left and right mounting plates from both lateral sides .

According to this characteristic configuration, when the pulling claw passes through the opening, it is easy to arrange the pulling device forward and downward without causing the pulling claw to interfere with the weeding tool. As a result, the raising nail is likely to act on the planted culm at an early timing (the timing before the planted culm is pulled out by the weeding implement), so that the fallen planted culm can be satisfactorily caused. it can.
According to this characteristic configuration, the weeding tool can be easily manufactured only by processing the rod-shaped member. Further, since the weeding implement is a relatively thin rod-shaped member, the surface pressure of the weeding implement that acts on the planted cereal is reduced, and the planted cereal is hardly pulled out by the weeding implement.

Furthermore, in the present invention,
It is preferable that the opening is formed to reach the front end of the weeding tool.

  According to this characteristic configuration, it is easy to arrange the pulling device forward and downward so that the pulling claw reaches the front end of the weeding tool without causing the pulling claw to interfere with the weeding tool, and the pulling claw is faster. It becomes easy to act on the planted cereal at the timing.

Furthermore, in the present invention,
It is preferable that the opening is formed so as to penetrate the weeding tool across the front end and the rear end of the weeding tool.

  According to this characteristic configuration, it is easy to place the pulling device forward and downward so that the pulling nail reaches the front end of the weeding tool without causing the pulling nail to interfere with the weeding tool, and the pulling nail is earlier in timing. This makes it easier to act on planted cereals. In addition, since the opening is opened to the front of the weeding tool, for example, when the endless rotating body is slack, even when the rotation trajectory of the leading end of the pulling nail moves forward and downward, the pulling nail is It becomes difficult to interfere with the tool.

Furthermore, in the present invention,
The opening is formed so as to penetrate the weeding tool across the upper end and the lower end of the weeding tool,
It is preferable that the pulling device is configured such that the tip of the pulling claw draws a rotation trajectory extending from the upper end to the lower end of the weeding tool in the opening.

  According to this characteristic configuration, the raising claw is caused to act on the planted culm in a wide range in the vertical direction, so that the planted culm that has fallen down can be caused satisfactorily.

Furthermore, in the present invention,
It is preferable that the rotation trajectory of the tip of the pulling claw is set at a position where it enters into the opening more than half of the length in the front-rear direction of the weeding tool.

  According to this characteristic configuration, the raising claw is caused to act on the planted culm at an earlier timing at the front part of the weeding unit, so that the planted culm that has fallen down can be caused satisfactorily.

Furthermore, in the present invention,
Before Symbol causing device, it is preferable that the tip of the causes pawl is configured to draw a rotation locus that passes through the position below the upper end of the partial grass tool frame.

  According to this characteristic configuration, the raising claw is caused to act on the planted culm from below at an early timing, and thus the planted culm that has fallen down can be favorably caused.

Furthermore, in the present invention,
It is preferable that the rotation trajectory of the tip of the pulling claw is set at a position below the vertical center of the weeding tool frame.

  According to this feature configuration, even if the planted culm has a large level of lodging, the raised claw is caused to act on the planted culm from below at the timing, so that Can cause.

It is a left view which shows a self-desorption type combine. It is a top view which shows a self-desorption type combine. It is a top view which shows the state which changed the mowing part into the maintenance attitude | position. It is a top view which shows a cutting part roughly. It is a front view which shows a cutting part. It is a left view which shows a vertical raising apparatus. It is a disassembled perspective view which shows the lower part of a vertical raising apparatus. It is VIII-VIII sectional drawing in FIG. It is sectional drawing which shows a rotation packer. It is front sectional drawing which shows the position fixing structure of the left cutting holder. It is left side sectional drawing which shows the position fixing structure of the left cutting holder. It is a back sectional view showing the position fixing structure of the left cutting holder. (A) It is a plane sectional view showing the state where the left harvesting holder was fixed to the position of the normal working posture. (B) It is a plane sectional view showing the state where the left harvesting holder was fixed to the position of the maintenance posture. It is sectional drawing which shows the structure of the receiving part of a cutting input case. It is a top view which shows the weeding tool which concerns on 1st another embodiment. (A) It is a left view which shows the weeding tool which concerns on 2nd another embodiment. (B) It is a top view similarly.

  EMBODIMENT OF THE INVENTION The form for implementing this invention is demonstrated based on drawing.

[Overall configuration of self-removing combine]
1 to 3 show a self-removing combine. This self-detaching combine includes a crawler type traveling device 1 and a body frame 2 supported by the traveling device 1. At the front end of the machine body frame 2, a cutting unit 3 that cuts the planted cereal grains is provided so as to be able to move up and down. An operation cabin 4 is provided behind the cutting unit 3. An engine E is provided below the operation cabin 4. Behind the driving cabin 4, a threshing device 5 for threshing the harvested cereal and a Glen tank 6 for storing the grain are provided in a state adjacent to each other in the left-right direction. The grain tank 6 is provided with an unloader 7 for discharging the grains in the grain tank 6.

[Mowing section]
The mowing unit 3 is configured to cut a plurality of lines. For example, the harvesting unit 3 is configured as a five-row trimming, but may be configured as a two-row trimming, a three-row trimming, a four-row trimming, or a six-row trimming or more. The cutting unit 3 is configured to be able to move up and down between the ascending non-working position and the descending working position by swinging around the axis X1 extending in the left-right direction, and around the axis Z1 extending in the up-down direction. By swinging, it can be changed between a normal working posture and a maintenance posture.

  The cutting unit 3 includes a cutting input case 8 that extends in the left-right direction, and a cutting main frame 9 that extends from the cutting input case 8 in a forwardly inclined posture. The cutting input case 8 has a cutting input shaft 10 into which power from the engine E is input. The cutting input case 8 is supported by the left cutting holder 11 and the right cutting holder 12 so as to be swingable about the axis X1. Further, a hydraulic lifting cylinder 13 is provided across the cutting main frame 9 and the body frame 2. As the elevating cylinder 13 expands and contracts, the cutting main frame 9 and the cutting input case 8 swing around the axis X1, and the cutting unit 3 moves up and down.

  As shown in FIGS. 4 and 5, the cutting unit 3 includes a weeding tool 14 and a weeding tool 15 for weeding a planted cereal culm, and a planting planted by the weeding tool 14 and the weeding tool 15. A horizontal pulling device 16 and a vertical pulling device 17 (corresponding to the “pulling device” according to the present invention) that cause cereals and a conveyor belt 18 that stirs the planted culm caused by the horizontal pulling device 16 and the vertical pulling device 17 And a cutting device 19 (see FIG. 1) for cutting the planted culm caused by the horizontal pulling device 16 and the vertical pulling device 17. Further, the cutting unit 3 includes a rotary packer 20 that stirs the stock of the harvested cereal rice cake, a merging and conveying device 21 that joins the Gojo harvested cereal rice cake and conveys it backward, and a harvested cereal rice cake from the merging and conveying device 21. It has a handling depth conveying device 22 that conveys backward, and a supply conveying device 23 that conveys the harvested cereal meal from the handling depth conveying device 22 to the threshing device 5 backward.

  The merging / conveying device 21 conveys the left side of the left-side two chopped cereals out of the five chopped cereals and the middle one of the five chopped cereals backwards. It has a middle conveying device 21C, and a right conveying device 21R that conveys the two right-side chopped cereals out of the five chopped cereals.

  The conveyor belt 18 includes a large diameter pulley 18A, a small diameter pulley 18B, and a belt 18C wound around the large diameter pulley 18A and the small diameter pulley 18B. The conveyor belt 18 and the rotary packer 20 are configured to rotate in synchronization with each other via a rotary shaft 24.

  The weeding tool 14 is located at a position between the lateral pulling device 16 at the left end and the lateral pulling device 16 adjacent thereto, and at a position between the lateral pulling device 16 at the right end and the lateral pulling device 16 adjacent thereto. There are two in total. The weeding tool 14 is attached to the front end portion of the weeding tool frame 30 extending in the front-rear direction.

  Five horizontal pulling devices 16 are provided in a horizontal posture with respect to the traveling direction of the aircraft. The horizontal pulling device 16 includes a plurality of horizontal pulling claws 25 that are raised and act on the planted cereals that have been weeded with the weeding tool 14 and the weeding tool 15, and the horizontal pulling claw 25 that is attached to the horizontal pulling claws 25 so as to be raised and lowered. A pulling chain 26 and a horizontal pulling case 27 are provided. The lateral pulling chain 26 is wound around a drive sprocket 28 and a driven roller 29.

[Weeding tools]
As shown in FIGS. 5 to 7, a total of four weeding tools 15 are provided at positions corresponding to the vertical pulling device 17. The weeding tool 15 is comprised by the rod-shaped member, and is formed in the substantially V shape opened toward back. The weeding tool 15 is formed so as to extend to a position immediately above the lower end of the lateral pulling device 16 in a tilted posture that rises rearward. That is, in this embodiment, the weeding tool 15 is formed integrally with the guide rod that guides the planted cereal to the horizontal pulling device 16.

  Between the left part and the right part of the weeding tool 15, an opening 15 </ b> A that opens rearward is formed. The opening 15 </ b> A reaches the front end of the weeding tool 15 and is formed so as to penetrate the weeding tool 15 across the upper end and the lower end of the weeding tool 15.

  The weeding tool 15 is attached to the front end portion of the pair of left and right mounting plates 60 via a pair of left and right brackets 15B. The bracket 15B is welded to each of the weeding tool 15 and the mounting plate 60. The pair of left and right attachment plates 60 are attached to the front end portion of the weeding tool frame 31 extending in the front-rear direction. More specifically, a front fixing portion 31 a and a rear fixing portion 31 b are provided at the front end portion of the weeding tool frame 31. The mounting plate 60 is fixed to the front fixing portion 31a and the rear fixing portion 31b by bolts 61.

[Vertical pulling device]
As shown in FIGS. 5 to 8, four vertical pulling devices 17 are provided in a posture along the traveling direction of the machine body. The vertical pulling device 17 includes a plurality of vertical pulling claws 32 that are caused to act on the planted cereals that have been weeded by the weeding tool 15, and a vertical pulling chain 33 (the book) to which the plurality of vertical pulling claws 32 are attached in an undulating manner. Equivalent to an “endless rotating body” according to the invention) and a vertical pulling case 34. The longitudinal pulling chain 33 is wound around the drive sprocket 35 and the driven roller 36.

  The drive sprocket 35 is provided at the upper end of the vertical pulling case 34 so as to be rotatable about an axis X2 extending in the left-right direction. Power from the lateral pulling device 16 is transmitted to the drive sprocket 35 via a transmission mechanism in the transmission case 37.

  The driven roller 36 is provided at the lower end portion of the vertical pulling case 34 so as to be rotatable around an axis X3 extending in the left-right direction. The driven roller 36 is rotatably supported by the tension arm 39 via a roller shaft 38. The tension arm 39 is biased downward by a tension spring 40. In this way, the driven roller 36 is biased downward by the tension spring 40 via the tension arm 39, whereby tension is applied to the vertical pulling chain 33.

  Inside the vertical pulling case 34, there are provided a guide rail 41 for holding the vertical pulling claw 32 in an upright position, and a cushion 42 that causes the vertical pulling claw 32 to fall down by contacting the vertical pulling claw 32 in a standing posture. Yes. In addition, a pair of left and right protective plates 43 are provided at the rear portion of the vertical pulling case 34 in order to prevent the vertical pulling claws 32 protruding outward from the vertical pulling case 34 from coming into contact with surrounding members. .

  The vertical pulling device 17 is attached to the front end portion of the weeding tool frame 31 via a pair of left and right mounting plates 60. The mounting plate 60 is formed with a front fitting groove 60a that opens forward and a rear fitting groove 60b that opens upward. Then, when the fitting pin 62 extending over the protective plate 43 and the mounting plate 60 is fitted into the front fitting groove 60a, the vertical pulling device 17 is prevented from moving up and down and fitted into the rear fitting groove 60b. By combining, the longitudinal pulling device 17 is prevented from moving back and forth.

[Rotation trajectory of the tip of the vertical lifting claw]
As shown in FIG. 6, the power from the lateral pulling device 16 is transmitted to the drive sprocket 35 through the transmission mechanism in the transmission case 37, so that the vertical pulling claw 32 passes through the opening 15A. The vertical pulling chain 33 rotates. In this way, the vertically raised claw 32 is caused by the vertically raised claw 32 by moving the vertical raised claw 32 in a standing posture along the movement path M.

  Here, in the vertical pulling device 17, the tip of the vertical pulling claw 32 extends over the upper end and the lower end of the weeding tool 15 in the opening 15 </ b> A and passes through a position below the upper end of the weeding tool frame 31. The rotation trajectory T is configured to be drawn. In the present embodiment, the rotation trajectory T at the tip of the vertical pulling claw 32 is set at a position below the center C in the vertical direction of the weeding tool frame 31.

  Further, the rotation trajectory T at the tip of the vertical pulling claw 32 is opened at a position where it enters the opening 15A to a position ahead of the front end of the mounting plate 60, that is, at least half the length in the front-rear direction of the weeding tool 15. The position is set in the part 15A. Further, the rotation trajectory T at the tip of the vertical pulling claw 32 is set at a position lower than the rotation trajectory of the tip of the horizontal pulling claw 25 (the position of the tip of the horizontal pulling claw 25 in FIG. 6), and weeding It is set at a position substantially coincident with the lower end of the tool frame 31.

[Rotating packer diffusion member]
As shown in FIG. 9, the rotary packer 20 is fixed to the lower end portion of the rotary shaft 24 through a packer holder 44 so as not to be relatively rotatable. The rotary packer 20 is fixed to the packer holder 44 with bolts 45. A diffusion member 46 is provided below the rotary packer 20 so as to hang down from the lower surface of the rotary packer 20.

  For example, the number of the diffusion members 46 is one, but may be two or more. The diffusion member 46 is configured by a flexible member, for example, a rubber hose. One end of the diffusing member 46 is fixed to the lower surface of the rotary packer 20 by a bolt 45. That is, the diffusion member 46 is fastened together with the rotary packer 20 to the packer holder 44 by the bolt 45.

  With such a configuration, when the rotary packer 20 rotates through the rotary shaft 24, the diffusion member 46 rotates integrally with the rotary packer 20. Thus, when the diffusing member 46 rotates, straw scraps existing under the rotating packer 20 are diffused by the diffusing member 46. As a result, it is possible to prevent the waste scraps (hakama) from accumulating below the rotary packer 20, that is, above the cutting device 19.

[Left cutting holder fixed position]
As shown in FIGS. 10 to 13, the left harvesting holder 11 is supported by the harvesting holder frame 47 so as to be swingable around the axis Z <b> 1. The left cutting holder 11 is configured to be fixable to each of a normal work posture position and a maintenance posture position.

  More specifically, the left cutting holder 11 is formed with a pin hole 11a into which the fixing pin 48 can be inserted, and a substantially L-shaped stay 49 is attached. The stay 49 has a vertical portion 49 </ b> A along the left cutting holder 11 and a horizontal portion 49 </ b> B along the cutting holder frame 47. The vertical portion 49 </ b> A of the stay 49 is fixed to the left trimming holder 11 by a mounting bolt 50. A bolt hole 49 a into which the fixing bolt 51 can be inserted is formed in the lateral portion 49 </ b> B of the stay 49.

  And as shown to Fig.13 (a), in order to fix the left cutting holder 11 to the position of a normal working posture, in the pin hole 11a of the left cutting holder 11 and the left insertion hole 47a of the cutting holder frame 47, The fixing pin 48 is inserted, and the fixing bolt 51 is inserted into the bolt hole 49 a of the left cutting holder 11 and the right insertion hole 47 b of the cutting holder frame 47. Thereby, the left cutting holder 11 can be fixed at the position of the normal working posture.

  Moreover, as shown in FIG.13 (b), in order to change the cutting part 3 to a maintenance attitude | position, the cutting part 3 can be changed to a maintenance attitude | position by pulling out the fixing pin 48 and the fixing bolt 51. FIG. And in order to fix the left cutting holder 11 to the position of the maintenance posture, the fixing pin 48 is inserted into the pin hole 11 a of the left cutting holder 11 and the right insertion hole 47 b of the cutting holder frame 47. Thereby, the left cutting holder 11 can be fixed at the position of the maintenance posture.

  Here, as shown in FIGS. 10 to 13, the left harvesting holder 11 is formed with a hooking portion 11 b that can hook the handle portion 48 a of the fixing pin 48. Thereby, for example, when changing the cutting part 3 to the maintenance posture, the handle 48a of the fixing pin 48 is pulled to the hooking part 11b with the fixing pin 48 pulled out from the left insertion hole 47a of the cutting holder frame 47. If it is hung, the fixing pin 48 can be temporarily placed in a state of being inserted into the pin hole 11a of the left cutting holder 11. Then, after changing the cutting portion 3 to the maintenance posture, the fixing pin 48 can be inserted into the right insertion hole 47b of the cutting holder frame 47 by releasing the hooking of the fixing pin 48 with respect to the hooking portion 11b. Although not described in detail, the same applies to changing the cutting unit 3 to the normal working posture.

  With such a configuration, the left harvesting holder 11 is fixed to either the normal working posture position or the maintenance posture position by both the fixing pin 48 and the fixing bolt 51, and compared with the case where it is fixed by either one. Thus, it is possible to suppress the occurrence of galling (wear) at the support portion of the cutting input case 8 due to vibration or the like (between the cutting input case 8 and the left cutting holder 11 or the right cutting holder 12).

[Receiving part of cutting input case]
As shown in FIG. 14, a bush 52 is interposed between the cutting input case 8 and the right cutting holder 12. Further, the collar 53 is externally fitted to the portion of the cutting input case 8 on the right side of the bush 52 in a state in which the collar 53 is prevented from coming off.

  Here, the cutting input case 8 and the right cutting holder 12 are made of ductile cast iron (FCD450). In order to suppress the occurrence of galling (wear) between the cutting input case 8 and the right cutting holder 12, the cutting is performed. A bush 52 made of a material having a hardness different from that of the input case 8 and the right cutting holder 12 is adopted. In this case, a grease reservoir may be formed between the bush 52 and the cutting input case 8, or between the bush 52 and the right cutting holder 12, or both.

[Another embodiment]
(1) In the above embodiment, the weeding tool 15 is configured by a substantially V-shaped rod-shaped member. However, as shown in FIG. 15, the weeding tool 115 has an opening 115A that opens rearward. You may be comprised by the substantially U-shaped rod-shaped member which has. Further, as shown in FIG. 16, an opening 215 </ b> A that opens rearward may be formed in the weeding tool 215.

(2) In the above embodiment, the weeding tool 15 is formed integrally with the guide rod, but may be formed separately. That is, the weeding tool 15 may be divided back and forth at a position immediately above the front end of the mounting plate 60, and the front part may be used as a weeding tool and the rear part may be used as a guide bar.

(3) In the above embodiment, the opening 15 </ b> A is formed to reach the front end of the weeding tool 15, but penetrates the weeding tool 15 across the front end and the rear end of the weeding tool 15. It may be formed as follows. That is, the front end portion of the weeding tool 15 may be formed to open forward.

(4) In the above embodiment, the rotation trajectory T at the tip of the vertical pulling claw 32 is set at a position below the center C in the upper direction of the weeding tool 15, but the present invention is not limited to this. That is, if the vertical pulling device 17 is configured to draw a rotation trajectory T in which the tip of the vertical pulling claw 32 passes through a position below the upper end of the weeding tool 15, the rotation of the tip of the vertical pulling claw 32 is rotated. The trajectory T may be set at a position above the center C in the vertical direction of the weeding tool 15.

  INDUSTRIAL APPLICABILITY The present invention can be used for a self-detaching combine that includes a weeding tool for weeding a planted cereal and a pulling device provided in a posture along the traveling direction of the aircraft.

15 Weeding tool 15A Opening 17 Vertical pulling device (pulling device)
31 Weeding tool frame 32 Vertically raised nails (raised nails)
33 Vertical pulling chain (endless rotating body)
60 Mounting plate C Center T Rotation locus

Claims (7)

A weeding tool for weeding cereals,
A plurality of raising claws that act on the planted cereals that have been weeded with the weeding tool, and an endless rotating body that is attached to the plurality of raising claws and is rotatable about an axis extending in the left-right direction. And a pulling device provided in a posture along the traveling direction of the aircraft,
An opening that opens rearward is formed in the weeding implement,
The pulling device is configured such that the endless rotating body rotates in a state in which the pulling claw passes through the opening .
The left and right parts of the weeding tool are constituted by left and right bar-like members arranged in a rearwardly expanded state and a rearwardly raised state, and the opening is formed between the left and right bar-like members,
Left and right mounting plates that support the lower end portion of the pulling device on the front end portion of the weeding tool frame extending back and forth behind the lower end portion of the pulling device are provided,
A self-removing combine in which the rotation trajectory of the pulling claw is covered by the left and right mounting plates between the lower end portion of the pulling device and the front end portion of the weeding tool frame .   The self-removable combine according to claim 1, wherein the opening is formed so as to reach a front end of the weeding tool.   The self-removable combine according to claim 1 or 2, wherein the opening is formed so as to penetrate the weeding tool across a front end and a rear end of the weeding tool. The opening is formed so as to penetrate the weeding tool across the upper end and the lower end of the weeding tool,
The inking unit is self according to any one of claims 1-3 in which the tip of the causes pawl is configured to draw a rotational trajectory extends between the upper and lower ends of the divided grass instrument within the opening Demold combine. The self-removable combine according to claim 4 , wherein the rotation trajectory of the tip of the pulling claw is set at a position where it enters the opening more than half of the length in the front-rear direction of the weeding tool. Before Symbol causing device, the tip of the causes pawl according to any one of the partial grass instrument claim 1, which is configured to draw a rotation locus that passes through the position below the upper end of the frame 5 Self-removing combine. The self-removable combine according to claim 6 , wherein the rotation trajectory of the tip of the pulling claw is set at a position below the center in the vertical direction of the weeding tool frame.

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