JP5939286B2 - Combine - Google Patents

Description

  The present invention relates to a combine equipped with an open / close type narrow guide device including a weed guide that can be opened / closed by an opening / closing mechanism of an outer portion of a cutting part.

  As described in Patent Document 1, a combine equipped with an open / close type narrow guide device is known. The narrow guide device includes a weed guide by a rod member that can guide the planted cereals in the front-rear direction from the cutting part at the tip of the traveling machine body along the outside of the machine body, and the weed guide for projecting when cutting. It comprises an opening / closing mechanism that switches between the position and the storage position after the cutting is completed, and an opening / closing switching portion thereof, and the weeding guide can be switched between the overhanging position and the storage position as required by lever operation.

JP 2009-261301 A

  However, since the opening / closing switching part of the weeding guide is exposed, even when the weeding guide is used, the opening / closing switching part of the opening / closing mechanism protrudes to the outer side of the cutting part, so that There was a case where the cereals were broken or pushed down by catching the standing cereals, and the opening / closing switching part was damaged.

  It is an object of the present invention to provide a combine that can prevent the chopped grains from being broken or pushed down by the opening / closing switching unit of the open / close type narrow guide device and avoiding damage to the opening / closing switching unit. .

According to the first aspect of the present invention, a weed guide (13) provided on the outer side of the cutting part (3) and the weed guide (13) are projected outward to guide the planted culm. In a combine provided with an opening / closing mechanism (14) for switching between an overhanging position and a storage position on the cutting part (3) side, the opening / closing mechanism (14) includes a drive side link (14a) on the base side and the weed guide ( 13) A folding link having a driven link (14c) connected to 13), and a drive shaft (14b) that rotates integrally with the drive side link (14a) is pivotally supported on a portion outside the cutting part (3). At the same time, an opening / closing switching part (15) for rotating the drive shaft (14b) in the forward and reverse directions is provided, and the auxiliary weed body (16) by the rod member extending in the front-rear direction is provided on the opening / closing switching part (15) in plan view. The auxiliary herbaceous body (16) is provided at a position surrounding the operation area. Thus a structure to prevent interference planting culms into the open switching unit (15), the reaper (3) is a pipe-like supporting integrally between the min grass frame of the left and right ends (12) The cutting horizontal frame (21) is provided, and an operation wire (22) connecting the open / close switching portion (15) and the lever (17) is inserted into the cutting horizontal frame (21). Combine.

  The invention according to claim 2 is the combine according to claim 1, wherein the auxiliary weeding body (16) is detachably attached to the cutting part (3).

  The invention according to claim 3 is the combine according to claim 1 or 2, wherein the auxiliary weeding body (16) is arranged at a position lower than the opening / closing switching part (15).

  According to the first aspect of the present invention, the opening / closing mechanism (14) for switching the weeding guide (13) between the overhanging position and the storage position is provided with the driving side link (14a) on the base side and the weeding guide (13). A folding link having a driven link (14c) coupled to the drive side link (14a) and a drive shaft (14b) that rotates together with the drive side link (14a) are pivotally supported on a portion outside the cutting part (3). Since the opening / closing switching part (15) for rotating the drive shaft (14b) in the forward and reverse directions is provided, and the lever (17) for operating the opening / closing switching part (15) is provided in the steering part (6), the steering part ( By operating the lever (17) provided in 6), the opening / closing switching part (15) arranged at the outer part of the cutting part (3) can be operated to switch the position of the weeding guide (13).

  Further, an auxiliary weed body (16) by a rod member extending in the front-rear direction is provided at a position surrounding the operation area of the open / close switching unit (15) in plan view, and the auxiliary weed body (16) is used to open / close switching unit (15). Therefore, the auxiliary weeding body (16) makes it difficult for the open / close switching unit (15) and the planted culm in the field to interfere with each other, and the open / close switching unit (15). It can prevent the planted cereals from being broken and pushed down.

Then, the operation wire (22) connecting the open / close switching part (15) and the lever (17) may be inserted and arranged inside the pipe-shaped cutting horizontal frame (21) provided in the cutting part (3). it can.

  According to the second aspect of the invention, in addition to the effects of the first aspect of the invention, the auxiliary weed body (16) is detachably attached to the cutting part (3). The grass body (16) can be easily repaired and replaced.

  According to the invention described in claim 3, in addition to the effects of the invention described in claim 1 or 2, the auxiliary herbicidal body (16) is arranged at a position lower than the opening / closing switching part (15). Interference between the open / close mechanism (14) including the open / close switching unit (15) and the field scene is avoided, and damage can be prevented.

Front view of applicable combine Plan view of the frame structure of the cutting part Main part plan view (a) and side view (b) of the open / close type narrow guide device Side view of mowing unit A arrow view of FIG. Enlarged view of the main part of FIG. Explanatory drawing of operation of cutting blade drive part (ac) Enlarged side view of the cutting blade drive An enlarged side view of a slide member according to another configuration Side view of the cutting part with a grounding member Enlarged cross-sectional view when mounting grounding member Side view of the cutting part with an excavator Front view of mowing unit with excavator Disassembled perspective view of excavator

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
As shown in the front view of the combine in FIG. 1, the combine 1 to which the present invention is applied includes a reaping portion 3 that can be adjusted up and down in front of a support machine base 2 that can run on a field, and a threshing that is arranged on the left and right behind the reaping portion 3. It comprises a part 4, a storage part 5, and a control part 6 arranged on the front side of the storage part 5, and is provided with an open / close narrow guide device 7 extending from the cutting part 3 to the side part of the threshing part 4.

  As shown in the plan view of the frame configuration of the cutting unit in FIG. 2, the cutting unit 3 is provided with a front-side extending and supporting weed bushes 11, 11 arranged in correspondence with the cutting strips. The openable narrow guide device 7 includes a weed guide 13 by a rod member that extends from the front end of the weeding frame 12 on the side of the threshing portion 4 that is mainly the uncut side to the rear part of the fuselage along the outer side of the fuselage. The opening / closing mechanism 14 by the folding link connected to the weed guide 13 and the drive shaft 14b of the drive side link 14a are rotated in the forward / reverse direction by the lever 17 for opening / closing operation disposed in the control unit 6. The open / close switching unit 15 is configured by an arm, and the auxiliary herbaceous body 16 is provided so as to bypass the outside of the open / close switching unit 15.

  Specifically, as shown in FIG. 3 of a plan view (a) and a side view (b) of the main part of the open / close narrow guide device, the cutting part 3 includes rear end portions of the left and right weed frames 12 and 12. A horizontal cutting frame 21 made of a square pipe that integrally supports the cutting frame from the lower side, and two operating wires 22 of a double-acting configuration that are connected to the hollow portion of the horizontal cutting frame 21 with a lever 17 for opening / closing operation, After 22 is inserted, it is guided in an L shape from the side end port to the rear side of the machine body.

  The opening / closing mechanism 14 is configured to be foldable by connecting a driven link 14 c connected to the drive side link 14 a to the weed guide 13. A drive shaft 14b is formed integrally with the drive side link 14a, and the drive shaft 14b is pivotally supported by an attachment member 23 provided at a position outside the rear end of the weed frame 12. The open / close switching unit 15 is integrally formed at the height position of the cutting horizontal frame 21 at the lower end of the drive shaft 14b by an isometric arm extending on the diameter line of the drive shaft 14b, and two operation wires 22 and 22 are provided at both ends thereof. A double-action link that is connected and rotated in the forward and reverse directions is configured.

  The auxiliary weed body 16 is configured in such a manner that a rod member extending in the front-rear direction surrounding the operation region of the open / close switching portion 15 of the drive shaft 14b in a plan view is bent up and down and extends below the drive shaft 14b. The front end of the weed frame 12 is connected to the outer side of the intermediate position in the front-rear direction by attaching a mounting member 24 and connected by fastening a bolt 24a, and the rear end is connected to the mounting member 23 by fastening bolt 23a. To do.

  The open / close narrow guide device 7 having the above-described configuration opens and closes the open / close mechanism 14 via the two operation wires 22 and 22 that are double-acted by lever operation and the open / close switching unit 15, and protrudes outward from the airframe. The position of the weeding guide 13 can be switched between the exit position and the storage position close to the machine body. The opening / closing switching unit 15 of the opening / closing mechanism 14 has an auxiliary weeding body 16 with a rod member positioned on the outer periphery thereof. Interference with planted cereals is avoided.

  Therefore, it is possible to prevent the planted cereal from being caught and pushed down by the opening / closing switching unit 15 when the machine is moving forward and backward, and to prevent the opening / closing switching unit 15 from being damaged. Further, the auxiliary weed body 16 is configured to extend below the drive shaft 14 b of the opening / closing mechanism 14, so that the opening / closing mechanism 14 includes its opening / closing switching unit 15 and avoids interference with projections in the field scene. And damage due to interference and interference can be prevented.

In addition, since the auxiliary weed body 16 is configured to be detachable via the attachment members 23 and 24 provided in the cutting unit 3, the auxiliary weed body 16 can be detached from the attachment members 23 and 24 and handled alone. Therefore, it can be easily repaired or exchanged by removing it as necessary for maintenance due to contact deformation in conveyance, movement, and work.
(Mowing blade device)
Next, the cutting blade device of the cutting unit 3 will be described.

  As shown in FIGS. 4 and 5, the cutting blade device 31 is close to the front side of the cutting transmission case 32 of the cutting unit 3 and extends across the entire width as shown in FIGS. 4 and 5. 33a and a movable blade 33b supported so as to be capable of reciprocating left and right in contact with the fixed blade 33a. The movable blade 33b is provided with a U-shaped receiving portion 34 having a slide groove 34a for driving left and right. 34b is fixed integrally.

  As shown in FIG. 6, an enlarged view of the main part of FIG. 5 includes a U-shaped receiving part 34 that extends in a vertical direction perpendicular to the reciprocating direction of the movable blade 33 b, and a U-shaped receiving part 34 has a slide groove 34 a. An inscribed slide surface 35a is formed on both sides, and a slide member 35 made of a wear-resistant material such as polyurethane resin is provided so as to be slidable. A bearing 36 such as a ball bearing is embedded in the slide member 35, and a position of a radius R of the crank arm 37 is provided. A cutting blade drive unit is configured by pivotally supporting the eccentric pin 37a formed in the above.

  As shown in the operation explanatory diagrams (a to c) of FIG. 7, when the eccentric pin 37 a revolves with the radius R by the rotation operation of the crank arm 37, the cutting blade driving unit configured as described above is interposed via the slide member 35. The movable blade 33b integrated with the U-shaped receiving portion 34 is driven to reciprocate in the range of ± R in the left-right direction, and the harvested cereal culm is cut by the fixed blade 33a and the movable blade 33b.

  At this time, since the slide member 35 is inscribed in the slide groove 34a of the U-shaped receiving portion 34 with the slide surface 35a on one side thereof being inscribed, the contact pressure is uniformly averaged on the contact surface. Therefore, it is possible to avoid a large contact pressure and a corresponding increase in frictional force due to partial contact of the conventional circular member. Therefore, with the above configuration, the cutting blade device can be improved in durability, vibration and soundproofing, and the cutting work can be speeded up at a high speed while preventing impact damage, so the work efficiency of the combine can be improved. It becomes.

  Further, the cutting blade driving unit having the above-described configuration is configured such that the slide member 35 protrudes from the upper end of the U-shaped receiving unit 34 to a predetermined height B at the upper limit position as shown in the enlarged side view of FIG. Thus, when the slide member 35 is lowered, foreign matters such as mud and dust that have entered the slide groove 34a of the U-shaped receiving portion 34 are pushed out from the upper end, and the slide surface is kept clean. It is possible to prevent wear due to the presence of foreign matter on the surface.

Further, as shown in the enlarged side view of FIG. 9, the slide member having another configuration has the same length and width as the slide member 35, and the left and right and upper and lower four surfaces are set as slide surfaces 35 a, thereby distinguishing the vertical and horizontal directions. Since it can be assembled easily and the surface pressure can be increased, high durability can be achieved. Further, a grid-like wear limit line 35b is provided so that the wear state can be confirmed, and the durability can be extended by rotating 90 ° and reassembling at the time of wear.
(Cutting ground member)
As shown in the side view of the cutting part in FIG. 10, a sledge-shaped grounding member 42 is provided on the front frame 41 made of a round pipe at the lower end of the cutting part 3, and this grounding member 42 is grounded to the field scene to cut the cutting part 3. Is configured to be supported at a predetermined height position. As shown in the enlarged cross-sectional view of FIG. 11, the grounding member 42 is provided with a mounting member 43 that rises in an L shape from one side end portion thereof to form a long hole extending vertically, and a bolt at one position of the front frame. By fixing with B, the height can be adjusted from the lower mounting state (a) to the upper mounting state (b).

  With the grounding member 42 having the above configuration, during normal harvesting traveling, the grounding member 42 is attached at a lower position so that the lower end of the raising lug 44 is set at the upper part with a gap from the weeding frame 41 so that the cutting unit 3 is higher than the field scene. At the same time, when harvesting fully lying cereals, the grounding member 42 is mounted on the upper side, and the cutting part 3 is kept low so that the front frame 41 sinks into the field until the pulling lug 44 is placed on the lying sledge. To do.

Since the conventional grounding member was configured to be adjustable in height under the weed frame 41, the weed frame 41 could not be lowered to the field scene, and could not cope with the harvesting of a completely lying cereal meal. However, by providing an adjustment allowance so that the grounding member can be fixed higher than the weeding frame at one side of the weeding frame 41 as described above, the mowing unit 3 is floated higher than the field scene by a lower attachment and is kept at a constant height. The harvesting can be carried out, and by holding the cutting unit 3 low so that the front frame 41 sinks into the field scene by the upper attachment, the harvesting running can be carried out while causing a completely lying cereal.
(Scraper)
Next, an excavator as a scraper of the cutting unit will be described.

  As shown in FIGS. 12 and 13, a side view and a front view of the mowing unit 3 include an external scraper excavator 51 as a scraper for stripping off mud and straw scraps on the road for cleaning the falling mud. Is provided.

  As shown in the exploded perspective view of FIG. 14, the excavator 51 is provided with arms 53, 53 on both sides of a semicircular scraper portion 52, and horizontally across the right and left weed ridges on the front portion of the cutting portion 3. It is connected to the movable blade 33b of the cutting blade device so as to be movable left and right. The excavator height is the lag action height, and by connecting externally so as to cover the lag action and prevent the mud from getting caught, the excavator and the cutting blade are linked and linked to separate the mud stuck to the road, You can collect mud that has fallen on the road, or drop it into the field and clean it.

  The excavator 51 is not limited to the above-described configuration, and may be configured to be installed and fixed on the left and right tip of the left and right side of the front frame and the side of the front frame, if necessary. By using the action, mud insertion can be prevented.

3 Cutting part 6 Steering part 12 Weeding frame 13 Weeding guide 14 Opening / closing mechanism 14a Driving side link 14b Driving shaft 14c Driven link 15 Opening / closing switching part 16 Auxiliary weeding body 17 Lever 21 Cutting horizontal frame 22 Operation wire

Claims (3)

A weeding guide (13) provided on the outer side of the cutting part (3), and an overhanging position and a cutting part (3) for projecting the weeding guide (13) outwardly to guide the planted culm In the combine provided with the opening / closing mechanism (14) for switching to the storage position on the side, the opening / closing mechanism (14) is a driven link (14) connected to the drive side link (14a) on the base side and the weed guide (13). 14c), and a drive shaft (14b) that rotates together with the drive side link (14a) is pivotally supported on a portion outside the cutting part (3), and the drive shaft (14b) is An opening / closing switching part (15) for rotating in the forward and reverse directions is provided, and an auxiliary weeding body (16) by a rod member extending in the front-rear direction is provided at a position surrounding the operation region of the opening / closing switching part (15) in plan view, The opening / closing switching portion ( 5) a structure to prevent interference planting culms to, the reaper (3) is pipe-shaped cutting transverse frame supporting integrally between the min grass frame of the left and right ends (12) (21 ), And an operation wire (22) connecting the open / close switching portion (15) and the lever (17) is inserted into the cutting horizontal frame (21) .   The combine according to claim 1, wherein the auxiliary weeding body (16) is detachably attached to the cutting part (3).   The combine of Claim 1 or Claim 2 which has arrange | positioned the said auxiliary weeding body (16) in the position lower than an opening / closing switching part (15).

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