JP6388523B2 - Take-up reel - Google Patents

Description

  The present invention relates to a take-up reel that is equipped in a full-pile throw-in combine and that is driven to rotate to scrape planted cereal.

  An example of a take-up reel equipped in a conventional all-throw-in type combine is described in Patent Document 1, for example. The all-throw-in type combine shown in Patent Document 1 includes left and right reel frames, a support bar provided across the left and right reel frames, and a tine attached to the support bar. It has been. When the picking reel is rotated during the mowing operation, the tine attached to the support bar causes the culm planted in the field to be scraped to the rear side of the machine body.

JP 2011-172535 A

  However, in the above conventional scraping reel, if the height of the planted cereal to be harvested is not high to some extent, it will not catch on the tine, and if the harvested target is short, the planted cereal that has entered between the tines There is a possibility that the heel slips through the tine and cannot be firmly scratched.

  In view of such a situation, there has been a demand for a scraping reel that can surely scrape even a short planted culm.

According to the present invention, a scraping reel that is equipped with a combine and scrapes a crop from the front side to the rear side in the front-rear direction of the combine,
And right and left reel frame is rotationally driven around the horizontal orientation axis, with one end connected to the left reel frame, and a support bar extending as the other end is connected to the right reel, the support A tine supported by the support bar with an interval in the extending direction of the bar, left and right arm members supported by the support bar and extending from the support bar in the extending direction of the tine, and the left and right arm members A rake bar that is attached and extends across a plurality of the tines along the extending direction of the support bar at a position closer to the support bar than the tip of the tine, and is supported by the support bar;
The tine is configured to have elasticity, and the arm member is configured to have rigidity,
The scoring bar is provided on the rear side of the tine in the front-rear direction,
The tine and the scraping bar are not connected except at a place supported by the support bar,
The tine can be bent forward in the front-rear direction with respect to the scraping bar.

According to this configuration, since the scoring bar extends in the lateral direction so as to block between the tine rows, the short planted culm that has entered between the tine rows is pressed by the scoring bar. Thereby, even if the cutting object is a short planted cereal meal, it can be firmly scraped and cut without loss. Further, in this configuration, the left and right arm members extend in the same direction as the tine, that is, substantially parallel to the tine, and are attached with the stir bar, so that the arm member extends from the support bar at a predetermined interval. The bar can be supported without interfering with the tine row.

In one preferred embodiment of the present invention, the tine and the arm member are formed as a curved body extending while being curved, and the curved lines of the tine and the arm member are similar. In this configuration, the tine is a rod body having a curved shape so as to be suitable for the culling action of the cereal, and the arm member extending in the same direction as the tine does not adversely affect the inducing action of the cereal by the tine. Thus, the arm member also has a shape similar to the tine.
In one preferred embodiment of the present invention, the scraping bar is attached to a tip region of the arm member.

  When the tine and the arm member are attached to the support bar, the attachment structure is simplified if the tine and the arm member are attached via a common member. For this reason, in one preferred embodiment of the present invention, the tine and the arm member are attached to the support bar via a mounting base fixed to the support bar. In this case, the mounting base functions as a common mounting member for the tine and the arm member. At this time, if the arm member is configured to be attached to the mounting base by a screw fastener common to the tine, the mounting structure is further simplified.

  Since the height and bending condition of the planted cereals vary depending on the type and growth area of the cereals, in order to obtain an appropriate squeezing action by the squeezing bar, squeeze from the tine tip of the squeezing bar. The distance to the bar is preferably adjustable. For this reason, in one preferred embodiment of the present invention, the scraping bar is attached to the arm member so that the distance from the tip of the tine can be selected.

  In order to avoid the limitation of the tine bending that occurs when the take-up reel rotates, the take-up bar may be arranged close to the front side of the tine in the rotation direction of the take-up reel. Furthermore, it is preferable that the tine is made of resin in order to make the tine sufficiently, that is, to give elasticity.

It is a side view which shows the harvesting part of the combine equipped with the pick-up reel by this invention. It is a top view which shows a take-in reel It is a partial front view which shows the tine provided in the pick-up reel and the pick-up bar. It is a fragmentary sectional view which shows the attachment structure to the support bar of a tine and an arm member. It is a partial side view of a take-in reel. It is a perspective view which shows the attachment structure to the support bar of an arm member. It is a fragmentary sectional view which shows the attachment structure to the support bar of the tine and arm member in another embodiment.

  FIG. 1 shows a cutting unit 1 that is disposed at the front of a traveling machine body of a full throw type combine combiner. The cutting unit 1 includes a take-up reel 2, a pair of left and right cutting frames 10, a cutting blade device 11, and an auger 12.

  The cutting blade device 11 is provided with a clipper-type cutting blade having a cutting width substantially equal to the body width. The auger 12 is arranged behind the cutting blade device 11 over the left and right cutting frames 10, and the harvested cereal grains harvested by the cutting blade device 11 are brought closer to the left and right center side of the cutting width, and are not shown here. To send. The auger 12 is provided with a spiral blade for feeding and a finger for feeding the harvested cereal rice cake laterally fed by the spiral blade to the starting end of the feeder.

  Above the front part of the reaping part 1, a scraping reel 2 is disposed that causes the cereals planted in the field to be pulled back and scraped. The whole straw throwing type combine harvester performs the cutting operation while scoring the planted grain straw in the field with the picking reel 2.

  As shown in FIG. 1, a pair of left and right arms 14 are supported by the cutting frame 10 so as to be swingable up and down around a horizontal swing fulcrum fixed to the cutting frame 10. The take-up reel 2 is supported by the arm 14. A hydraulic cylinder 15 is attached between the arm 14 and the cutting frame 10, and the take-up reel 2 swings up and down by the expansion and contraction of the hydraulic cylinder 15.

  As shown in FIG. 2, the take-up reel 2 includes left and right reel frames 20 having a substantially hexagonal outer shape in a side view, and a rotating shaft 22 that connects the central portions of the left and right reel frames 20. The rotating shaft 22 is rotatably supported by the arm 14. The rotary shaft 22 protrudes outward from one of the reel frames 20, and receives power from the drive mechanism 16 that is formed as a chain drive mechanism in this embodiment at this protruding portion. As a result, the take-up reel 2 rotates. Note that the take-up reel 2 may have a shape other than a hexagonal shape, for example, a quadrangular shape, a pentagonal shape, a heptagonal shape, or an asymmetry shape.

  As shown in FIGS. 1 and 2, the take-up reel 2 is provided with a support bar 21 parallel to the rotation shaft 22 over the apex portions of the left and right reel frames 20. That is, the support bar 21 is disposed at a position that is substantially farthest from the rotation shaft 22 in the outer peripheral region of the reel frame 20. Each support bar 21 is a round pipe in this embodiment. As shown in FIGS. 3 to 6, a plurality of tines 4 are attached to the support bar 21 via the bracket 3. At that time, each tine 4 extends in the transverse direction (the radial direction of the support bar 21) with respect to the extending direction of the support bar 21 (the axial direction of the support bar 21) at intervals along the support bar 21.

As shown in FIGS. 3 and 4, the bracket 3 includes a first bracket 31 and a second bracket 32 extending in the axial direction of the support bar 21. The first bracket 31 has a cross section that is bent at a plurality of locations, a base end side thereof is fixed to the support bar 21, and a free end side thereof is folded to form an elastic protrusion 311. The second bracket 32 is a channel member having a rectangular groove cross section, and is disposed in a groove-like portion formed in the first bracket 31.

In this embodiment, the tine 4 is made of a resin material, and as shown in FIG. 4, the tine 4 has a cross-section of a rod body that is curved in an arch shape from a base end portion 41 that is an attachment portion to the bracket 3. In addition, a thick wall is formed near the base end portion 41, and a slit 43 is provided in the thick wall forming portion 42. The slit 43 opens in the direction of the support bar 21, and an elastic protrusion 311, which is a free end of the first bracket 31, is engaged with the slit 43, so that the first bracket 31 and the tine 4 can be elastically displaced. Is produced. Further, the base end portion 41 of the tine 4 has a shape that passes through a rectangular opening 312 provided on a side wall that forms a groove of the first bracket 31. The base end portion 41 of the tine 4 passes through the opening 312 and is engaged with a space formed between the first bracket 31 and the second bracket 32. A through hole 313 and a through hole 321 that are coaxial with each other are provided at the bottom of the first bracket 31 and the second bracket 32. Further, a through hole 44 is also provided in the base end portion 41 of the tine 4, and the first bracket 31, the second bracket 32, and the tine 4 are screwed together by a common fastening bolt (an example of a screw fastener). .

  As shown in FIGS. 3, 5, and 6, a plurality of tines are positioned closer to the support bar 21 than the tip of the tine 4 along the extending direction of the support bar 21 (that is, parallel to the rotation shaft 22). A bar 5 is arranged over four. Both ends of the take-in bar 5 are connected to a pair of left and right arm members 6 connected to the support bar 21. In this embodiment, the take-in bar 5 includes a bar main body 50 and a screw connector 51 that connects the bar main body 50 to the arm member 6. The bar body 50 is a round pipe provided with screw holes at both ends. The screw connector 51 is a bolt inserted through a connection hole 60 provided at the tip of the arm member 6. The screw connector 51 is screwed into the screw hole of the bar main body 50 and is screwed to the arm member 6 on the one hand by two nuts and is screwed to the bar main body 50 on the other hand.

  The tines 4 are provided on all the support bars 21 (six in this embodiment). However, the stir bar 5 is not a support bar 21 but a support bar 21 to which the stir bar 5 is not attached. There may be. For example, the stir bar 5 may be provided on every other support bar 21. Further, the scoring bar 5 may be configured to extend over a portion of the tine row, rather than extending over the entire tine row. Moreover, you may employ | adopt the structure which covers a tine row | line | column with the some short scraping bar 5. FIG.

  As shown in FIGS. 4 and 6, the arm member 6 is made of a plate material cut in a substantially arc shape, and is provided with a connection hole 60 at one end, and a mounting plate 61 at the other end. Is fixed. The mounting plate 61 extends in the left-right direction from the fixing portion of the arm member 6, and mounting holes 62 are provided at the same distance as the arrangement pitch of the tines 4 at the left end and the right end, respectively. When the arm member 6 is attached to the bracket 3, the attachment plate 61 is inserted into the groove of the first bracket 31 so that the attachment hole 62 of the attachment plate 61 is coaxial with the through hole 313, the through hole 321, and the through hole 44. Contact with the bottom and fasten it with fastening bolts. As a result, the arm member 6 is connected to the support bar 21. That is, the first bracket 31 and the second bracket 32 function as mounting bases for the tine 4 and the arm member 6.

  As shown in FIG. 4, the tine 4 and the arm member 6 are curved bodies that extend while curving along curved lines similar to each other. The tine 4 is made of resin and has an elastic structure, and the arm member 6 is made of metal and has a rigid structure. Since the take-up bar 5 is arranged so as to be close to the front side of the tine 4 in the rotation direction of the take-up reel 2, the bend toward the rear of the tine 4 due to contact with the cereal basket or the like when the take-up reel 2 is rotated. Is not prevented.

  In the above-described embodiment, the connecting position of the stir bar 5 to the arm member 6 is only one, but two or more may be prepared and selectable. For this purpose, for example, as shown in FIG. 7, a plurality of connection holes 60 (three in FIG. 7) may be provided. By selecting the connecting hole 60 used for connecting the scoring bar 5, the positional relationship between the scoring bar 5 and the tip of the tine 4 can be changed to an appropriate one according to the cutting operation.

  It can be used as a scraping reel that scrapes crops such as planted cereals.

1: Cutting part 10: Cutting frame 2: Pick-up reel 20: Reel frame 21: Support bar 22: Rotating shaft 3: Bracket 31: First bracket 311: Elastic protrusion 312: Opening 313: Through hole 32: Second bracket 321: Through hole 4: Tine 41: Base end part 42: Thick wall forming part 43: Slit 44: Through hole 5: Scratching bar 50: Bar body 51: Screw connector 6: Arm member 60: Connection hole 61: Installation Plate 62: Mounting hole

Claims (7)

Equipped with a combine, a scraping reel that scrapes the crop from the front side to the rear side in the front-rear direction of the combine;
Left and right reel frames that are driven to rotate around a lateral axis;
A support bar extending so that one end is connected to the left reel frame and the other end is connected to the right reel;
A tine supported by the support bar at an interval in the extending direction of the support bar;
Left and right arm members supported by the support bar and extending from the support bar in the extending direction of the tine;
A scoring bar that is attached to the left and right arm members and extends across a plurality of the tines along the extending direction of the support bar at a position closer to the support bar than the tip of the tine and supported by the support bar And comprising
The tine is configured to have elasticity, and the arm member is configured to have rigidity,
The scoring bar is provided on the rear side of the tine in the front-rear direction,
The tine and the scraping bar are not connected except at a place supported by the support bar,
Before SL tines take-reel can be bent to the front side with respect to the take-bar by the front-rear direction. Before SL tines and said arm member is formed as a curved body extending while being curved, take-reel according to claim 1, curved lines of the tines and said arm member are similar. The take-up reel according to claim 1 or 2 , wherein the take-up bar is attached to a tip region of the arm member. Before SL tine and take-reel according to the arm member is any one of claims 1-3 attached to the support bar via a mount that is fixed to the support bar.   The take-up reel according to claim 4, wherein the arm member is attached to the mount with a screw fastener common to the tine. Take-reel according to prior Ki掻inclusive bar, any one of claims 1 to 5 attached to the arm member selectable distance from the tip of the tine.   The take-in reel according to any one of claims 1 to 6, wherein the tine is made of resin.

Images