JP2014233230A - Thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thresher which can smoothly rake threshing objects backward without damaging them in the front side of a threshing chamber in which the threshing objects are fed.SOLUTION: The thresher has a threshing cylinder 18 rotationally driving in an anteroposterior direction, has the front end of the threshing cylinder 18 being a taper part 36 molded into the form whose diameter gradually reduces frontward and integrally molded with feed-in spirals 38, 39 which feed the threshing objects backward during rotational driving of the threshing cylinder 18 on the outer periphery of the threshing cylinder 18. The feed-in spiral 38 in the side near the taper part 36 is installed with projection parts 41 for raking the threshing objects.

Description

  The present invention relates to a threshing apparatus including a feeding spiral on the outer peripheral surface side of a handling cylinder.

  A front and rear handling cylinder that is rotationally driven is provided, and the front end portion of the handling cylinder is formed into a tapered portion that is gradually reduced in diameter toward the front, and the threshing object is moved backward during the rotational driving of the handling cylinder. 2. Description of the Related Art Conventionally, a transplanter described in Patent Document 1 in which a feeding spiral to be fed to the body is integrally formed on the outer periphery of the handling cylinder is known.

Japanese Patent Laid-Open No. 11-56087

  However, on the front end side of the handling room where threshing objects are likely to accumulate, the cereal straw is not smoothly conveyed rearward, and the threshing object may be damaged and the efficiency of the threshing work may be reduced on the spot.

  In this invention, it is made into the subject to provide the threshing apparatus which can be raked back smoothly, without damaging a threshing target object in the front part side of the handling chamber into which a threshing target object is thrown.

  In order to solve the above-described problems, the present invention is firstly provided with a front and rear handling cylinder 18 that is rotationally driven, and the front end portion of the handling cylinder 18 is formed into a shape that is gradually reduced in diameter toward the front. In the threshing device in which the feeding spirals 38 and 39 for feeding the threshing object backward during rotation of the handling cylinder 18 are integrally formed on the outer periphery of the handling cylinder 18, The feed spiral 38 is provided with a protrusion 41 for scraping the threshing object.

  Second, the reinforcing body 46 is detachably attached to the feeding spiral 38 on the taper portion 36 side, and the protruding portion 41 is formed integrally with the reinforcing body 46.

  Thirdly, an attachment 47 for attaching the reinforcing body 46 to the feeding spiral 38 is arranged in the vicinity of the protrusion 41 of the reinforcing body 46.

  Fourth, the middle part and the rear end part of the handling cylinder 18 are formed as a cylindrical body part 37 extending rearward from the taper part 36, and the front side and the rear side of the body part 37 are fed. Protruding portions 42A and 42B that scrape the threshing object are also provided in the spiral 39, and the side inclination on the rotational direction side that contacts the threshing object of the protruding portion 41 on the tapered portion 36 side and the rear protruding portion 42B on the trunk portion 37 is provided. 40 is steeper than the side inclination 40 on the rotation direction side of the front protrusion 42A of the body 37.

  Even at the front end side of the handling chamber where the threshing object is relatively easy to accumulate by providing the feeding spiral which is integrally formed on the outer peripheral surface side of the tapered portion of the handling cylinder, by providing a protrusion for scraping the threshing object. While carrying becomes smooth, it can also prevent efficiently that a threshing target object is damaged, and can improve the efficiency of threshing work.

  In addition, if a reinforcing body is detachably attached to the taper-side feeding spiral and the protrusion is integrally formed with the reinforcing body, the number of parts can be reduced and the cost can be reduced. Specifically, by integrally forming the reinforcing body and the protruding portion, processing can be easily performed and the material cost can be kept low even when the reinforcing body and the protrusion are formed with a wear-resistant member or heat-treated.

  Moreover, according to what has arrange | positioned the fixture which attaches a reinforcement body to a feeding spiral in the projection part vicinity of this reinforcement body, while the intensity | strength of a projection part improves, threshing performance also improves.

  In addition, let the middle part and the rear-end part of the said handling cylinder be the column-shaped trunk part extended back from the said taper part, and also the threshing object also to the feeding spiral on the front side and rear side of the trunk part The side slope on the rotational direction side that comes into contact with the threshing target object on the tapered portion side projection and the rear side projection portion of the trunk portion is provided on the rotational direction side of the front projection portion of the trunk portion. According to the slanted side compared with the side slant of the side, the threshing object can be transported smoothly even at the front end side of the handling room where the processed material is relatively clogged, and the threshing object at the rear end side of the handling room Can be left untreated.

It is the whole side view which showed the general purpose combine provided with the threshing apparatus to which this invention is applied. It is a principal part side view which shows the internal structure of a threshing apparatus. It is a side view which shows a handling cylinder. It is a perspective view which shows a handling cylinder. It is the figure which showed the shape of the projection part. It is a perspective view which shows the structure of the handling cylinder in another Example.

Hereinafter, embodiments of the present invention will be described based on illustrated examples.
FIG. 1 is an overall side view showing a general-purpose combiner equipped with a threshing apparatus to which the present invention is applied, FIG. 2 is a side view of the main part showing the internal structure of the threshing apparatus, and FIGS. It is the side view and perspective view which show a handling cylinder. This general-purpose combiner is connected to a traveling machine body 2 supported by a pair of left and right crawler type traveling devices 1 that are traveling parts, and is connected to the front part of the traveling machine body 2 so as to be able to be raised and lowered, and performs harvesting work of cereal grains in a field. The reaping unit 3, the threshing device 4 that performs the threshing operation on the left side of the reaping unit 3 and that is reaped by the reaping unit 3, the steering unit 5 that the operator performs a steering operation, and the rear end of the traveling machine body It has the discharge part 15 which discharges sawdust etc. from the side.

  The mowing unit 3 includes a conveyor 6 that conveys the harvested cereal to the threshing device side, a mowing frame 7 that is connected to the front end side of the conveyor 6 and extends forward, and a front end side of the mowing frame 7 A pair of left and right support arms 9, 9 extending forward from the rear end side, which is the base end of the cutting frame 7, and the left and right support arms 9, 9 extending. And a take-up reel 11 rotatably supported between the ends.

  The cereals harvested by the reaping section having the above configuration are fed to the front end side of the feeder 12 by the transport auger 10 on the side of the reaping frame 7, and the transported conveyor provided with the cereals conveyed to the feeder 12 inside the feeder 12. 6 is conveyed to the rear side. The harvested cereals conveyed to the rear end side of the feeder 12 are sent to the upper front end side of the threshing device 4.

  The threshing device 4 is an upper side of the threshing device 4 and performs a threshing part 13 for performing a threshing operation of the harvested cereal mash that is transported from the transport conveyor 6, and a lower side of the threshing device 3 and the threshing unit 13 includes a sorting unit 14 that sorts the cereals threshed by 13 into the first grain, the second, and the dusts such as sawdust.

  The threshing unit 13 includes a handling chamber 16 into which the harvested cereal meal is introduced from the rear end side of the conveyor 6, and a front and rear handling cylinder rotation shaft 17 formed over the entire front and rear direction of the handling chamber 16. And a cylindrical barrel 18 whose front end side is formed in a tapered shape, and an arcuate shape that is below the barrel 18 and is recessed along the shape of the barrel 18. And a plurality of dust feed valves 21 arranged in the front and rear sides on the ceiling side of the handling chamber 16.

  The harvested cereal mash introduced into the front side of the handling chamber 16 is provided with plate-shaped spiral plates 38 and 39, which will be described later, provided spirally on the outer peripheral surface side of the handling cylinder 18, and in the rotational direction of the handling cylinder 18. It is guided to the rear side of the handling chamber 16 by the dust supply valve 21 provided along the same. That is, when the handling cylinder 18 rotates about the handling cylinder rotating shaft 17, the harvested cereal mash introduced into the handling chamber 16 is transferred to the rear side of the handling chamber 16. A detailed configuration of the handling cylinder 18 will be described later.

  As a result, the harvested cereals fed into the handling room 16 are threshed by being handled by the later-described protrusions 41 and 42 attached to the threshing spiral 22 at a predetermined interval and the receiving net 19. It is processed. According to this, since the whole harvested cereal mash cut by the reaping part is put into the handling room, the threshing operation is performed on the entire cereal shed. The threshing that has undergone the threshing process passes through the receiving net 19 and falls to the sorting unit 14 on the lower side. Note that the handling chamber 16 and the sorting unit 14 are partitioned by a receiving net 19.

  The sorting unit 14 includes a swing sorting body 26 made of a chaff sheave and a stroller that swings and sorts the cereal that has passed through the receiving net 19, a sorting case 27 that houses the swing sorting body 26, and a sorting wind. , The second selection fan 29 that discharges the dust after sorting to the outside of the machine, the first spiral 31 that collects and transports the first selected item, and the second selected item And a second spiral 32 for collecting and transporting. As a result, the cereal that has fallen from the receiving net 19 is dropped to the swinging sorter 26 side, and further spilled downward while being sorted by the swinging sorter 26.

  The cereal that has leaked from the rocking sorter 26 can select the grain that is the first thing by the sorting wind by the tang fan 28 and the second thing by the sorting wind by the second sorting fan 29. And dust can be sorted out.

  The first spiral 31 extends in the left-right direction behind the red pepper fan 28, conveys the sorted first thing to the left and right side sides (right side in the illustrated example), and the two The No. 32 is extended in the left-right direction behind the No. 2 sorting fan 29 and conveys the No. 2 sorted item to the right side of the threshing device 3.

  Further, on the right side of the threshing device 4, a grain conveying device that conveys the first item conveyed by the first spiral 31 to the grain tank 33 side and a second item conveyed by the second helix 32 are handled. 16 or a reducing and conveying device for reducing and conveying to the sorting unit 14.

  In the threshing unit 13, relatively large waste on the receiving net 19 remaining after the threshing process is transferred to the rear end side of the handling chamber 16 by the transfer action by the threshing spiral 22 and the guidance by the dust feed valve. It is transferred, falls from the rear end of the receiving net 19 to the discharge section, and is discharged outside the machine. Further, among the cereals on the swinging sorter 26 that have fallen from the receiving net 19 in the sorting unit 14, dusts such as sawdust sorted by the sorting unit 14 are sent from the second sorting fan 29 and the like. Is discharged from the rear end side of the sorting case 27 to the outside of the machine.

  That is, from the discharge unit 15, the relatively large waste falling from the rear end portion of the receiving net 19 of the threshing unit 13 by the above configuration, and the fine waste discharged from the rear end side of the sorting unit 14, etc. A certain waste is discharged toward the rear side of the traveling machine body 2.

  Next, the configuration of the handling cylinder will be described with reference to FIGS. FIG. 5 is a diagram showing the shape of the protrusion. The handling cylinder 18 is formed into a tapered shape whose front end portion is gradually reduced in diameter toward the front, and a scraping portion (tapered portion) that rakes the harvested cereals fed from the feeder 12 into the handling chamber 16. ) 36, and a cylindrical processing part (body part) 37 for threshing the processed product (threshing target) that has been squeezed into the handling chamber 16 by the scraping part 36.

  The outer peripheral surface of the scraping portion 36 is provided with a scraping spiral (feed spiral) 38 in which a pair of plate members protruding outward from the outer periphery are arranged in a spiral shape. A threshing spiral 39, which is a plate-like member arranged in a spiral shape so as to be continuous from one scrambling spiral, is provided.

  As shown in the figure, the raking helix 38 and the threshing helix 39 are provided with protrusions 41 and 42 that protrude toward the outer periphery of the handling cylinder at predetermined intervals. The protrusions 41, 42 serve as a scraping piece 41 that promotes the scraping of the processed material introduced to the front end side of the processing chamber into the processing chamber 16, and the threshing spiral 39 The protruding portion provided on the side serves as a processing piece 42 that scratches the processed material guided by the dust feeding valve 21 and promotes the threshing processing.

  At this time, the protrusions 41 and 42 arranged on the handling cylinder 18 (the scraping portion 36 and the processing portion 37) are formed into a mountain shape (trapezoidal shape) in which the protruding half portion becomes narrower in the protruding direction. By doing so, it has a pair of inclined sides 40, and two or more attachment holes 43 in the longitudinal direction for attaching the protrusions 41 and 42 to the scavenging helix 38 and the threshing helix 39 are provided in the proximal half. (Two in the illustrated example) are perforated. The projections 41 and 42 can be individually attached and detached by fixing the bolts to the spiral plates 38 and 39 through the pair of attachment holes 43 and 43. According to this configuration, when the protrusions 41 and 42 are damaged, they can be individually replaced, etc., so that maintenance is easy.

  Further, the scraping piece 41 has a larger disposition interval on the handling cylinder 18 side than the processing piece 42. In the example shown in FIG. 4, the four scraping pieces 41 are provided in front view, while the eight processing pieces 42 are provided in front view. The arrangement interval of the scraping pieces 41 may be the same as the arrangement interval of the processing pieces 42.

  Furthermore, the said process part 37 is comprised from 37 A of threshing front parts which are the first half part of a longitudinal direction (front-back direction), and the threshing rear part 37B which is a second half part, and the threshing front part 37A as the said process piece 42 Is provided with a pretreatment piece 42A, and a threshing rear portion 37B is provided with a posttreatment piece 42B. At this time, the pretreatment piece 42A, the posttreatment piece 42B, and the scraping piece 41 have shapes of the treatment pieces 42A and 42B that are suitable for the threshing process according to the front and rear positions of the handling cylinder 18, respectively. Yes.

  Specifically, as shown in FIG. 5, the pretreatment piece 42 </ b> A has an inclined side in the rotation direction of the handling cylinder, such as the postprocessing piece 42 </ b> B, as compared with the postprocessing piece 42 </ b> B and the scraping piece 41. Compared with, it is shaped so that the angle becomes loose. In other words, the post-processing piece 42B and the scraping piece 41 are formed in a trapezoidal shape by a pair of inclined sides 40 that extend in the protruding direction from the mounting hole 43 and are substantially symmetric. By forming the handle cylinder 18 into a shape in which the inclined side in the rotational direction is cut, a gently inclined side 40a having a gentle inclination is formed (see FIG. 5).

  According to this configuration, the threshing front part 37A in which the threshing performance is slightly relaxed by using the pretreatment piece 42A provided with the gently inclined piece 40a in the threshing front part 37A, and many grains remain in the threshing object. In this case, it is possible to efficiently prevent the grain from being scratched too much and damaged.

  Incidentally, in the illustrated example, the post-processing piece 42B and the scraping piece 41 of the scraping portion 36 are formed in the same shape. Can be configured at cost.

  According to the above-described configuration, the harvested cereal mash introduced from the feeder 12 to the front end side of the handling chamber 16 is provided in the scissor spiral 38 provided in the scoring portion 36 at the front end of the handling cylinder 18 and the scissor spiral 38. The scraper 41 can smoothly scrape the cereal into the handling chamber on the front side of the handling chamber where the harvested cereal tends to stay. As a result, the cereal that has been squeezed into the handling chamber 16 is threshed by the protrusions etc. via the threshing front part 37A and the threshing rear part 37B of the processing part 37 while being guided rearward by the threshing spiral 39, and the remaining cocoon Waste and the like are discharged from the discharge portion 15 on the rear side of the threshing device 3.

  At this time, the sloping side of the post-treatment piece 42B of the threshing rear part 37B is formed to be steeper than the sloping side of the pre-treatment piece 42A of the threshing front part 37A, thereby improving the threshing performance on the rear end side of the barrel. Therefore, it is possible to efficiently prevent untreated grains from being thrown into the handling chamber 16 when the grains are discharged from the discharge unit 15.

  Next, based on FIG. 6, a different point from the above-mentioned structure is demonstrated about another Example of this invention. FIG. 6 is a perspective view of a main part showing a configuration of a handling cylinder in another embodiment. In the embodiment shown in FIG. 6, unlike the above-described embodiment in which the reinforcing member (reinforcing body) 46 and the scraping piece 41 are formed separately, the reinforcing member 46 and the scraping piece 41 are integrally formed. .

  More specifically, in the above-described embodiment, the scraper 41 is attached to the front side and the reinforcing member 46 is attached to the rear side with the fixing spiral 47 sandwiched between the fixing spiral 47 so as to hold the stirring spiral 38 therebetween. In FIG. 6, the reinforcing member 46 integrally formed with the scraping piece 41 is detachably attached and fixed from the rear side with the fixing bolt 47 to the scraping spiral 38. Incidentally, the processing piece 42 is bolted to the attachment portion 44 on the side of the threshing spiral 39 through the attachment hole 43 as in the above-described embodiment.

  At this time, the reinforcing member 46 is provided in the vicinity of the scraping piece 41 (protruding portion base end side) with the fixing bolt 47 for attaching and fixing the reinforcing member 46 in contact with the protruding end side of the scavenging spiral 38. It is configured to be.

  According to this configuration, since the plurality of the scraping pieces 41 arranged in the scraping portion 36 are integrally formed with the reinforcing member 46, the cost can be reduced as compared with the case where the scraping pieces 41 are individually attached, By attaching / detaching the reinforcing member 46 to / from the take-up spiral 38 side, a plurality of the take-up pieces 41 can be attached / detached at a time, so that the labor of attaching / detaching the take-up pieces 41 is greatly reduced.

  Further, the attachment portion 47 attaches the reinforcing member 46 to the side of the take-in portion 36 (take-in spiral 38) via a fixing bolt 47 used in a fixing hole formed in the vicinity of the proximal end portion side of the take-up piece 41. -By adopting a fixed configuration, the attached scraping piece 41 is attached in a more stable state, and the strength is improved. Thereby, the intensity | strength of the scraping piece 41 can be improved efficiently, without providing the member for reinforcement separately.

18 Handling cylinder 36 Scratched part (tapered part)
37 Processing section (torso)
38 Stirring spiral (feeding spiral)
39 Threshing spiral (feed spiral)
41 Scratching piece (protrusion)
42A Pretreatment piece (front side protrusion)
42B Post-processing piece (rear protrusion)
46 Reinforcing member (reinforcing body)
47 Mounting part (mounting tool)

Claims (4)

  A front and rear handle cylinder (18) that is rotationally driven is provided, and a front end portion of the handle cylinder (18) is formed into a tapered portion (36) that is gradually reduced in diameter toward the front. In the threshing device in which the feeding spiral (38, 39) for feeding the threshing object backward during the rotational drive of 18) is integrally formed on the outer periphery of the barrel (18), the taper portion (36) side A threshing device provided with a protrusion (41) for scraping the threshing object on the feeding spiral (38).   The reinforcing body (46) is detachably attached to the feeding spiral (38) on the taper portion (36) side, and the protrusion (41) is integrally formed with the reinforcing body (46). The threshing device described.   The threshing device according to claim 2, wherein a fitting (47) for attaching the reinforcing body (46) to the feeding spiral (38) is arranged in the vicinity of the protrusion (41) of the reinforcing body (46).   The middle part and the rear end part of the handling cylinder (18) are columnar cylinder parts (37) extending rearward from the tapered part (36), and the front side and the rear side of the trunk part (37). Protruding portions (42A, 42B) that scrape the threshing object are also provided on the feeding spiral (39) on the side, and the protruding portion (41) on the tapered portion (36) side and the protruding portion on the rear side on the trunk portion (37) The side inclination (40) on the rotation direction side in contact with the threshing object of (42B) is steeper than the side inclination (40) on the rotation direction side of the front protrusion (42A) of the trunk part (37). The threshing apparatus according to any one of claims 1 to 3.

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