JP2013146272A - Thresher and whole culm charging type combine harvester equipped with thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a threshing structure of a whole culm charging type combine harvester capable of improving threshing performance and grain recovering efficiency.SOLUTION: There is provided a threshing structure of a whole culm charging type combine harvester comprising a threshing cylinder 16 driven and pivoting on a spindle 15 installed in a reaped grain culm conveying direction to thresh reaped grain culm supplied into a threshing chamber 14, a ceiling plate 24 covering the upper side of the threshing cylinder 16, and a plurality of dust conveying valves 49 for guiding the reaped grain culm to the downstream side of the threshing direction with the rotary drive of the threshing cylinder 16 disposed on the ceiling plate 24, wherein the threshing cylinder 16 comprises a body constituting member 47 for constituting the body and a plurality of threshing teeth 48 outward projected from the body constituting member 47.

Description

  The present invention provides a handling cylinder for performing a threshing process on a harvested cereal meal supplied to a handling room by being rotationally driven about a support shaft constructed along the conveying direction of the harvested grain meal, and its handling A top plate that covers the upper side of the barrel, and the top plate is equipped with a plurality of dust feeding valves that guide the harvested cereal rice cake toward the lower side in the threshing processing direction as the handling barrel rotates. It relates to the threshing structure of a straw-type combine harvester.

  As a threshing structure for a full throw-in type combine as described above, it is common to equip the handling chamber with a handling cylinder configured to have helical handling teeth on the outer periphery (for example, Patent Document 1). reference).

JP-A-11-266666

  In other words, in the all-throw-in type combine combiner, the threshing device is not equipped with a feed device such as a feed chain for the threshing device as in the self-removable combine combiner. Thus, with the rotation of the barrel, the threshing product is screwed toward the lower side in the threshing process direction while being threshed.

  However, when a spiral tooth-handling is provided on the outer periphery of the barrel as described above, the threshing action of the tooth-handling wall and the squeezing of the processed threshing product becomes insufficient, and the grain is made into a single grain. Since it becomes difficult to promote the threshing, there is room for improvement in improving the threshing performance and the grain recovery efficiency.

  An object of the present invention is to provide a threshing structure for a whole straw throwing combine that can improve threshing performance and grain recovery efficiency.

  In order to achieve the above-mentioned object, in the invention according to claim 1 of the present invention, it is supplied to the handling chamber by being rotationally driven with a support shaft erected along the conveying direction of the harvested cereal culm. And a top plate that covers the upper side of the handle cylinder, and the top plate is threshed with the rotational drive of the handle cylinder. In the threshing structure of a full-throw-in type combine combiner equipped with a plurality of dust feeding valves that guide the processing direction to the lower side in the processing direction, the handling cylinder is formed from a main body constituting member of the main body portion, and outward from the main body constituting member. It is characterized by comprising a plurality of tooth-treating teeth protruding toward the surface.

  According to this characteristic configuration, the harvested cereal rice cake supplied to the handling room is directed toward the upper part of the handling room while being subjected to threshing action due to a lot of hammering and swallowing by a plurality of teeth as the handling cylinder rotates. As it reaches the upper part of the handling chamber, it is guided toward the lower side in the threshing process direction by a plurality of dust feeding valves.

  In other words, the handle barrel is provided with a plurality of teeth handling teeth, and the threshing processed product is placed on the lower side in the threshing processing direction while sufficiently obtaining a suitable threshing action by hitting or swaging the teeth on the threshing processed product. It can be transported towards.

  And if each tooth-handling is formed so as to have, for example, a guide part that guides the threshing processed product toward the lower side of the threshing processing direction along with the rotation of the barrel, threshing directed toward the lower side of the threshing processing direction It becomes possible to better convey the processed material, and if it is formed into a shape dedicated to threshing that only hits and plows the threshing processed material, a more suitable threshing action can be obtained for the threshing processed material. It becomes possible to do so.

  Therefore, by letting the dust feeding valve mainly transport the threshing processed product to the lower side of the threshing processing direction, the threshing performance and the grain can be reduced without impairing the conveying performance of the threshing processed product toward the lower side of the threshing processing direction. It is possible to provide a threshing structure for a whole straw input combine that can improve the recovery efficiency.

Whole side view of all-throw-in type combine combiner Overall plan view of all-injection combine Longitudinal side view of threshing device Partially longitudinal front view showing the configuration of the front end of the threshing device Partially longitudinal front view showing the configuration of the front and rear intermediate part of the threshing device Plan view of the main parts showing the configuration of the handling cylinder and conveyance auxiliary member Cross-sectional plan view of the main part showing the configuration of the barrel Longitudinal rear view of the barrel showing the configuration of the barrel Cross-sectional plan view of the main part showing another configuration of the barrel Longitudinal front view of the main part showing the configuration of the top plate Cross-sectional plan view of the main part showing the length and arrangement of the dust delivery valve The top view of the principal part which shows the structure of a conveyance auxiliary member Longitudinal side view of the main part showing the configuration of the conveyance auxiliary member Perspective view of main part showing configuration of receiving network Perspective view of main part showing configuration of chaff sheave

  FIG. 1 shows an overall side view of an all-combination combine that harvests rice, wheat, and the like. This combine is attached to a body frame 1 made of square pipe steel, etc. A transmission and the like are mounted, and a pair of left and right crawler type traveling devices 3 driven by power from the engine 2 transmitted via the transmission and the like are mounted on the lower part of the vehicle body frame 1. In addition, a cutting and conveying device 4 that cuts and conveys the planted cereals to be harvested and is moved backward is connected to the left half of the body frame 1 to the harvested cereals from the cutting and conveying device 4. On the other hand, the threshing device 5 for performing the threshing process and selecting the processed product obtained by the threshing process is mounted, and the grains from the threshing device 5 are stored in the right half of the body frame 1. Along with the storage of the stored grains Equipped with a bagging device 6 which enables and is configured to form a driver's section 7 in front portions of the bagging apparatus 6 of the body frame 1.

  The left and right crawler type traveling devices 3 are driven at a constant speed based on the swinging operation of the control lever 8 provided in the boarding operation unit 7 in the left-right direction, and thus the straight traveling state appears. It is comprised so that a turning state may appear by doing.

  As shown in FIG. 1 and FIG. 2, the cutting and conveying device 4 is configured such that the dividers 9 provided on the left and right ends of the front part of the vehicle body travel with the planted cereals to be harvested and the harvested cereals not to be harvested. Rotating reel 10 deployed above the front part of the planted cereal rice cake, scrapes the planted cereal rice harvested by the left and right dividers 9 toward the rear, and equips it at the bottom. The clipper-shaped cutting mechanism 11 cuts the planted side of the planted culm to be harvested, and the auger 12 deployed behind the cutting mechanism 11 is the planted cereal (cutted cereal culm after cutting by the cutting mechanism 11). ) Are gathered at a predetermined position in the left-right direction, and are fed backward at the predetermined position, and a feeder 13 composed of a transport conveyor extending from the predetermined position to the front upper part of the threshing device 5 threshs the harvested cereals from the auger 12 To be transported toward the device 5 It is configured. Further, the threshing device 5 and the feeder 13 are expanded and contracted by a hydraulic lifting cylinder (not shown) installed over the body frame 1 and the feeder 13 based on the swinging operation of the control lever 8 in the front-rear direction. The swaying movement of the cutting mechanism 11 with respect to the planted cereal can be adjusted by the up-and-down swinging with the connecting point as a fulcrum.

  As shown in FIGS. 3 to 5, the threshing device 5 is a handling cylinder 16 that rotates in a handling chamber 14 formed in the upper part thereof with a support shaft 15 that is laid in the conveying direction of the harvested cereal rice cake as a fulcrum. And a lower end of the threshing device 5 in the threshing processing direction, and a receiving net 17 formed in a U shape in front view covering the lower side of the handling cylinder 16 from below. A discharge port 18 is formed at the rear of the receiving net 17, a swing sorting mechanism 19 is provided below the receiving net 17, and a red pepper 20 is provided in front of and below the swing sorting mechanism 19. The first recovery portion 21 is formed below the front side of the front side, the second recovery portion 22 is formed below the rear side of the swing sorting mechanism 19, and the discharge port 23 is formed behind the swing sorting mechanism 19. A top plate 24 that covers the upper side of the trunk 16 from above is provided.

  The handling chamber 14 is partitioned and formed by a receiving net 17 that covers the handling cylinder 16, a top plate 24, and the like, a supply port 25 is formed at a lower part of the front end, and the rear end of the feeder 13 is connected to the supply port 25. The whole of the harvested cereal meal conveyed by the feeder 13 is input and supplied from the supply port 25 as a threshing processed product.

  The handling cylinder 16 has a support shaft 15 that is rotatably mounted on the front wall 26 and the rear wall 27 of the threshing device 5, and is supported by the support shaft 15 with power from the engine 2 transmitted through the carp 20 or the like. The threshing process is applied to the harvested cereals supplied to the handling room 14 by being rotated clockwise as viewed from the front, and the threshing process is performed on the harvested cereals while promoting the singulation of the grains. Transport toward the rear, which is the lower side of the direction.

  The receiving net 17 is a concave receiving net formed in a lattice shape, receives the harvested cereal meal supplied to the handling chamber 14, assists the threshing process of the handling cylinder 16 with respect to the harvested grain meal, and is obtained by the threshing process. Swaying sorting mechanism such as threshing cereal mash while letting the cerealized grains and cereals with branch branch or swarf generated by threshing process leak to the swaying sorting mechanism 19 below Prevent leakage to 19.

  The swing sorting mechanism 19 has a rough sorting grain pan 30, chaff sheave 31, and stroller 32 in that order on the sheave case 29 that is driven to swing back and forth by a cam-type drive mechanism 28. In the lower part of the sheave case 29, a fine sorting grain pan 33 and a grain sheave 34 are arranged in that order from the front side of the sheave case 29. And the sorting processed material leaked from the receiving net 17 in a state where single grains and swarf are mixed is received by the upper grain pan 30, chaff sheave 31 or Strollac 32, and rough sorting processing by sieve sorting is performed. The processed material leaked from the chaff sheave 31 in a state where a single grain or a grain with branch stems is mixed is received by the lower grain pan 33 or the grain sieve 34 and subjected to a fine sorting process by sieving. Applying and sorting the processed products, single grains as No. 1, mixed grains such as grain with branch branch and No. 2 as No. 2, and dust such as Soup as No. 3 To sort.

  The carp 20 is driven by the power from the engine 2 transmitted through the belt-type transmission mechanism 35, and is driven to rotate about the support shaft 20A, thereby generating a sorting wind. By being supplied toward the sorting processed product leaked from the receiving network 17 or the sorting processed product sorted by the swing sorting mechanism 19 through the air passages R1 to R3, A sorting process is performed to blow off swarf or the like having a small specific gravity from the sorted product, and convey it toward the outlet 23 on the lower side in the threshing process direction.

  The first recovery unit 21 recovers the single-grained grains that have leaked from the grain sieve 34 of the swing sorting mechanism 19 in the state where dust such as straw scraps has been removed by the sorting wind from the Karatsu 20. Then, the recovered first item is conveyed toward the lifting screw 37 (see FIG. 2) that is connected to the right end of the first screw 36 that is disposed in the left-right direction at the bottom.

  The second recovery unit 22 includes a mixture of grains such as branches and cereals that flow down from the rear end of the grain sieve 34 without leaking from the grain sieve 34 of the rocking sorting mechanism 19, and the rocking sorting mechanism 19. A mixture such as cereal grains and sawdust leaking from the Strollac 32 is collected as No. 2 and the No. 2 screw 38 arranged at the bottom side of the collected No. 2 is arranged at the right end. To the second reduction mechanism 39 (see FIG. 2) that is connected in communication.

  The lifting screw 37 lifts the first item conveyed by the first screw 36 and supplies it to the grain tank 40 provided at the upper part of the bagging device 6 (see FIGS. 1 and 2). The second reduction mechanism 39 includes a reprocessing unit (not shown) that performs a threshing process again on the second item conveyed by the second screw 38, and the second item after the threshing process by the reprocessing unit. It is transported and returned to the swing sorting mechanism 19 (see FIG. 2).

  The discharge port 23 is used for removing cereal cereals that do not leak from the receiving net 17 and flow down from the discharge port 18, and swarf sorted and conveyed to the rear of the oscillating and sorting mechanism 19 by a sieving sorting process or a wind sorting process. Release outside the vehicle.

  As shown in FIGS. 3 to 8, the handling cylinder 16 includes a frustoconical scoring portion 41 provided at the front end portion thereof, and a handling processing portion 42 connected to the rear end of the scavenging portion 41. Has been. On the outer peripheral surface of the scraping unit 41, two spiral teeth 43 that scrape and convey the harvested cereal meal supplied from the supply port 25 toward the rear handling processing unit 42 when the handling cylinder 16 is rotated are integrated. Equipped.

  The handling unit 42 is integrally provided at a first support plate 44 integrally provided at the front portion of the support shaft 15, a second support plate 45 provided integrally at the front and rear intermediate portions of the support shaft 15, and a rear end portion of the support shaft 15. The third support plate 46 and a round pipe steel material supported by the support plates 44 to 46 so as to be arranged in the circumferential direction of the handling cylinder 16 at a predetermined interval in a front-rear orientation along the support shaft 15. Six handling cylinder frames (an example of a main body constituting member) 47, and each handling cylinder frame 47 projecting outward from the handling cylinder frame 47 toward the outside of the handling cylinder 16, with a predetermined interval in the front-rear direction. A plurality of teeth 48 arranged so as to be lined up in a bowl shape.

  That is, the handling cylinder 16 is arranged and arranged so that a plurality of handling teeth 48 projecting outward from the handling cylinder 16 are arranged at a predetermined interval in the circumferential direction and the front-rear direction of the handling processing unit 42. The internal space S of the part 42 communicates with the handling chamber 14 so as to allow entry of the threshing product into the internal space S. As a result, during the rotation operation, the surrounding threshing product and While stirring the threshing processed material that has entered the internal space S, the threshing processing is performed on the threshing processed product by striking or punching the handling barrel frame 47 and the tooth handling 48.

  Further, the internal space S of the handling processing unit 42 communicates with the handling chamber 14, so that even when a large amount of harvested cereal meal is supplied to the handling chamber 14 as a threshing processed product, the internal space of the handling processing unit 42. S can be effectively used as a processing space for threshing treatment, and thereby, retention of threshing products in the processing space and saturation of the processing space can be avoided. As a result, the threshing product leaks from the concave 3 without sufficient threshing processing due to the retention of the threshing product or the saturation of the processing space, or the load required for the threshing processing increases and the handling cylinder increases. It is possible to avoid inconveniences such as damage to the transmission system for 16.

  When the handling cylinder 16 is rotated, not only the plurality of tooth handling teeth 48 but also the six handling cylinder frames 47 forming the handling processing section 42 of the handling cylinder 16 are handled handling members that act on the threshing product. Therefore, it is possible to improve threshing performance and threshing efficiency.

  Moreover, by the threshing process on the front side of the handling cylinder 16, many grains become a single grain and leak from the receiving net 17, so that the amount of the threshing processed product decreases in the front and rear intermediate parts, The second support plate 45 prevents the threshing product in the inner space S of the handling cylinder 16 from flowing to the lower side in the threshing processing direction, and guides the threshing treatment product around the handling cylinder 16 as the handling cylinder 16 rotates. , Threshing of the threshing product by hitting or swallowing the tooth-handling 48, etc., or leakage of the single cereal grain from the receiving net 17 is promoted, so that the single cereal grain contained in the threshing product The occurrence of No. 3 loss caused by grains and unthreshed cereals passing through the inner space S of the barrel 16 and being discharged together with the shed cereals from the discharge port 18 at the lower end of the threshing processing direction. Can be blocked.

  Further, when the handling cylinder 16 is rotated, the outside air sucked from the supply port 25 along with the rotation of the helical teeth 43 together with the harvested cereal that is scraped and transported by the action of the scraping portion 41 is surrounded by the circumference of the handling cylinder 16. And flow smoothly into the internal space S of the handling unit 42, thereby preventing the swarf generated from the threshing process from flowing out from the supply port 25 to the feeder 13 and the threshing processed product. The threshing process in the lower direction can be carried more quickly.

  In addition, the outside air sucked from the supply port 25 passes through the inside of the feeder 13 connected to the supply port 25, and the feeder 13 includes the cutting mechanism 11 and the auger 12. Since the supply port 25 communicates with a carry-out port (not shown) for carrying out the recovered cereals formed in the cutting and collecting part, the suction action by the rotation of the helical teeth 43 is caused when the handling cylinder 16 is rotated. In addition, dust such as sawdust generated in the cutting and collecting process in the cutting and collecting unit, along with the outside air, from the carry-out port of the cutting and collecting unit through the internal space of the feeder 13 and the supply port 25, It will flow into the internal space S of the handling processor 42. As a result, it is possible to suppress the accumulation and soaring of sawdust etc. in the harvesting and collecting part, the poor transportation of the harvested cereals due to the deposition and the deterioration of the working environment and visibility due to the soaring, etc. Can be suppressed.

  Each of the support plates 44 to 46 has a circular shape centered on the support shaft 15, and a barrel frame 47 is bolted to the outer peripheral side of the support plate 44 at an equal distance from the support shaft 15.

  That is, on the outer peripheral side of each support plate 44 to 46, six handling cylinder frames 47 are arranged in a state of being arranged at regular intervals in the circumferential direction so that the cylinder diameter of the handling cylinder 16 is increased. Thus, it is possible to prevent the harvested cereal from being wrapped around the handling cylinder 16.

  Each barrel frame 47 can be reoriented to a normal posture in which the front-rear direction coincides with the front-rear direction of the barrel 16 and an inverted posture in which the front-rear direction is opposite to the front-rear direction of the handle barrel 16, and Bolts are connected to the support plates 44 to 46 so that the front and rear directions with respect to the adjacent handling cylinder frames 47 are reversed.

  Each handling frame 47 has a plurality of mounting holes 47A and 47B that allow the handling teeth 48 to be mounted in a state where the mounting holes 47A and 47B are arranged at a constant pitch P in the front-rear direction, and from the front end of the handling frame 47 The distance L1 to the center of the hole 47A and the distance L2 from the rear end of the handling frame 47 to the center of the last mounting hole 47A are made different from each other by a half pitch (= 1 / 2P). .

  Each handling cylinder frame 47 is connected to and supported by each of the support plates 44 to 46 in a state where the front and rear directions with respect to adjacent ones are reversed, and thereby, the six handling cylinder frames 47 have the same configuration. Can be positioned in a state of being shifted by a half pitch in the front-rear direction from the teeth 48 of the adjacent cylinder frames 47. As a result, the striking interval of the teeth 48 against the threshing processed product can be reduced without reducing the interval between the adjacent teeth 48.

  That is, while reducing the cost by making each handling cylinder frame 47 the same structure, the smaller the gap between adjacent handling teeth 48, the easier it is to invite the cereals in the threshing processed product with respect to the handling teeth 48. While effectively preventing clogging of the threshing product resulting from the entanglement, it is possible to improve the threshing performance by increasing the number of times the tooth handling 48 is struck against the threshing product.

  Further, since each handling cylinder frame 47 is equipped so that the orientation can be changed between the normal posture and the inverted posture, the handling teeth 48 positioned on the upper side in the threshing processing direction, which is relatively easy to wear due to a large amount of the threshing processed material. When wear becomes significant due to long-term use, the direction of each barrel frame 47 is changed, so that the plurality of teeth 48 provided on each barrel frame 47 are relatively easily worn away. The position of the upper teeth 48 and the lower teeth in the threshing direction that are difficult to wear can be changed to a state where they are exchanged at a stroke, whereby the teeth 48 on the lower side in the threshing direction with less wear. Can be effectively used as the tooth handling 48 on the upper side in the threshing process direction with a large amount of processed threshing.

  Of the plurality of mounting holes 47A and 47B, four (two front and rear) mounting holes 47A located at both front and rear ends of each handling cylinder frame 47 are formed to have a smaller diameter than the mounting holes 47B located at the intermediate portion. ing.

  Of each tooth 48, a tooth 48A that is attached using a small-diameter attachment hole 47A is composed of a stepped round bar steel material having a small-diameter portion 48a that is inserted through the attachment hole 47A. A nut is detachably attached to the barrel frame 47 so as to be positioned on a line passing through the center of the support shaft 15 and the center of the barrel frame 47.

  The tooth 48B attached using the intermediate attachment hole 47B is made of a stepless round bar steel material, and the center thereof is located on a line passing through the center of the support shaft 15 and the center of the handling cylinder frame 47. As shown in FIG.

  That is, since each tooth 48A located at both front and rear ends of the handling section 42 is detachable, the teeth 48A are significantly worn by long-term use including changing the direction of the handling frame 47. Can be easily replaced with a new tooth-handling 48A.

  Further, on the lower side of the threshing treatment direction in which the amount of threshing cereal increases, as shown in FIG. 9, if deployed in a state in which the teeth 48 </ b> A located at the rear end of the handling cylinder 16 are thinned, the handling cylinder rear end The interval between the tooth-handling 48A at the portion increases, and the retention of the threshing cereal caused by the catch on the tooth-handling 48A at the rear end of the barrel can be effectively suppressed. Release from the outlet 23 can be facilitated.

  As shown in FIGS. 3 to 5, 10, and 11, the top plate 24 includes a curved portion 24 </ b> A that curves substantially along the rotation locus K of the tooth handling tip, and a semicircular shape that is located at both front and rear ends of the curved portion 24 </ b> A. The vertical wall portion 24B and the straight side edge portions 24C located on the left and right of the curved portion 24A, etc., are closed, and the upper side of the handling cylinder 16 is opened from above. In the open state, the opening / closing swinging operation using a plurality of hinges 24D provided on the left side edge 24C as fulcrums is possible. The right side edge 24C is provided with a plurality of bolts 24E for fixing the top plate 24 in a closed state.

  On the inner surface of the curved portion 24A, there are a plurality of dust feed valves 49 that guide the threshing processed material conveyed to the upper part of the handling chamber 14 toward the lower side in the threshing processing direction in accordance with the rotation operation of the handling cylinder 16. It is fixedly equipped so as to line up in the direction at a predetermined interval. Among the plurality of dust delivery valves 49, the foremost dust delivery valve 49A is formed in an arc shape extending from the front vertical wall portion 24B to the left side edge portion 24C, and the other dust delivery valves 49B are left and right side edge portions. It is formed in an arc shape extending over 24C.

  That is, by providing the top plate 24 with the curved portion 24 </ b> A, the threshing processed material that has been scraped and conveyed to the upper portion of the handling chamber 14 by the plurality of tooth handling 48 and the like as the handling cylinder 16 rotates is applied to the top plate 24. Without violently colliding, it can be smoothly guided toward the receiving net 17 on the lower side of the threshing process direction along the top plate 24 and the dust feed valve 49, and each dust feed valve 49 can be moved to the left side. 49A of each threshing processed material conveyed to the upper part of the handling chamber 14 with rotation of the handling cylinder 16 by having formed in the long circular arc shape over the side edge part 24C or the left and right side edge parts 24C. The guiding action of the threshing can be effectively improved, so that each tooth-handling 48 is not a shape having a conveying action for the threshing processed product, but a shape dedicated to threshing that can suitably hit or plow the threshing processed product. Threshing processed threshing products while forming Towards sense direction downstream side can be favorably transported guide, a result, it is possible to improve the threshing performance and transport performance for threshing treated.

  A steel plate seam member 50 formed so as to have a guide surface connected to the inner surface of the curved portion 24A and the inner edge of the receiving net 17 is detachably bolted to the left and right side edge portions 24C. That is, the seam member 50 that is easily worn due to intense contact with the threshing product by being positioned at the seam between the receiving net 17 and the top plate 24 is configured to be detachable. As in the case of being integrally formed with the joint member 50, it is possible to appropriately treat the wear of the joint member 50 without incurring the trouble and economical disadvantage of replacing the entire top plate 24 by the wear of the joint member 50.

  Incidentally, a small clearance is set between the tip of each tooth-handling 48 and the lower edge of each dust feed valve 49 in order to improve the guidance of the threshing processed product by the dust feed valve 49. In addition, between the tip of each tooth-handling 48 and the inner edge of the receiving net 17, the tip of each tooth-handling 48 and each dust feed valve are used in order to promote the leakage of single grains from the receiving net 17. The clearance larger than the clearance set between the lower edge of 49 is set.

  As shown in FIGS. 3, 4, 6, 12, and 13, between the front wall 26 of the threshing device 5 and the receiving net 17, the harvested cereal meal supplied from the supply port 25 is received, A conveyance assisting member 51 is provided to assist the raking and conveying of the harvested cereal meal by the raking part 41 of the handling cylinder 16. The conveyance auxiliary member 51 is configured by two plates 51 </ b> A that are bolted in a substantially U shape in front view to cover the lower side of the handling cylinder 16 from below, and front and rear of the front wall 26 of the threshing device 5 and the upper portion of the threshing device 5. Bolts are detachably connected to a pair of left and right support frames 52 arranged in the direction. That is, since the conveyance auxiliary member 51 that is easily contacted with the harvested cereal grind and easily wears is configured to be detachable, the conveyance auxiliary member 51 is integrally formed with the receiving net 17 or the left and right support frames 52. The treatment for the abrasion of the conveyance auxiliary member 51 can be appropriately performed without incurring the trouble and the economical disadvantage of replacing the receiving mesh 17 or the left and right support frames 52 together with the conveyance auxiliary member 51 due to the abrasion of the conveyance auxiliary member 51.

  As shown in FIGS. 3, 5, 6, and 14, the receiving net 17 is configured by four receiving net members 53 formed in the same shape, and is detachably bolted to the left and right support frames 52. Yes. Each receiving net member 53 has a base frame 53A in which a plurality of vertical bars 53B made of strip-shaped steel plates are arranged in the front-rear direction in a state of being spaced apart from each other in the circumferential direction of the handling cylinder 16, and are formed in a curved shape in a circular arc shape. A plurality of first horizontal bars 53C made of steel plates are arranged in the left-right direction with a predetermined interval in the front-rear direction as the support shaft direction of the handling cylinder 16, and a plurality of first wires made of piano wire curved in an arc shape are arranged. The two horizontal rails 53D are arranged in the left-right direction with a certain interval in the front-rear direction between the adjacent first horizontal rails 53C, and the mesh has a length in the direction along the circumferential direction of the handling cylinder 16. Is formed in a horizontally long rectangle that is longer than the length in the direction along the front-rear direction.

  That is, the receiving net 17 is configured so that the mesh is a horizontally long rectangle in the rotation direction of the handling cylinder 16, so that the single grain obtained from the threshing process on the harvested corn straw is received by the receiving net 17. Therefore, it is possible to avoid the occurrence of degranulation due to the suppression of leakage of the single-grained grains from the receiving net 17. In addition, since the receiving net members 53 are formed in the same shape, the productivity and assembly of the receiving net 17 can be improved.

  As shown in FIGS. 3 and 15, the rough sorting chaff sheave 31 is composed of a single sorting plate 54, and is bolted to the sheave case 29 in a back-up and inclined posture located on the lower side in the sorting direction. ing.

  On the front side of the sorting plate 54 (1/3 of the entire sorting plate 54), a plurality of leakage holes 54A formed in a rectangular shape in plan view are arranged between the leakage holes 54A in the front row. It is formed in a zigzag pattern in which the lower holes 54A are located. On the rear side of the sorting plate 54 (2/3 of the sorting plate 54 as a whole), a plurality of leakage holes 54B and 54C formed in a rectangular shape in plan view having sorting pieces 54a and 54b are leaked in the front row. Between the holes 54B and 54C, the rear row leakage holes 54B and 54C are arranged in a staggered manner.

  Among the sorting pieces 54a and 54b, the sorting piece 54a located on the left and right center side of the sorting plate 54 is formed so as to be narrower and closer to the upper side in the sorting direction. The sorting pieces 54b located at the left and right ends of the sorting plate 54 are rectangular in shape shorter than the sorting pieces 54a on the left and right center sides, and are formed so as to be positioned higher on the lower side in the sorting direction.

  That is, since the chaff sheave 31 for rough sorting is configured by a single sorting plate 54, for example, the chaff sheave 31 is configured by arranging a large number of chaff flips made of strip steel plates so as to be spaced apart in the front-rear direction. Compared with the case where it does, the simplification of a structure and the reduction of cost can be aimed at.

  And the front part of the chaff sheave 31 is formed by forming the leakage hole 54A not provided with the sorting pieces 54a and 54b on the front part side of the chaff sheave 31 to which the processed product with a high content of single grains is supplied. The number of single grains that leak from the side to the lower grain pan 33 and the grain sieve 34 increases, and as a result, the recovery rate of the single grains can be increased.

  Further, the leakage holes 54B and 54C provided with the sorting pieces 54a and 54b are formed in a staggered manner in the front, rear, left and right sides on the rear side of the chaff sheave 31, so that the sorting processed product on the chaff sheave 31 is not separated in the sieve sorting process. It will be evenly distributed in the left-right direction, so that the leakage of single grains from the respective leakage holes 54B, 54C can be promoted. In addition, since the chaff sheave 31 is installed in a rearwardly inclined posture, the chaff sheave 31 moves the sorting processing product to the upper side in the sorting processing direction in the sieve sorting process as compared with the case where the chaff sheave 31 is installed in the horizontal posture. This increases the force that pushes out the product, and this suppresses the transport of the sorted product to the lower side of the sorting direction, and the vertical movement of the sorted product becomes intense, making the specific gravity difference sorting of the sorted product more effective. Therefore, it is possible to effectively prevent the occurrence of the third loss in which the leakage of the grains having a large specific gravity from the respective leakage holes 54B and 54C is promoted and the single grains are discharged from the outlet 23 to the outside of the vehicle. As a result, the grain recovery efficiency can be improved.

  Further, the sorting pieces 54b at the left and right ends of the chaff sheave 31 are formed to be shorter than the sorting pieces 54a at the center of the left and right sides, so that the grains from the leakage holes 54C at the left and right ends where the sorting processed product in the chaff sheave 31 is easy to accumulate. Leakage of grains and the like can be promoted, and as a result, it is possible to avoid a reduction in sorting efficiency due to the accumulation of sorting processed products at the left and right ends of the chaff sheave 31.

  Incidentally, the ratio of the leakage holes 54A that are not provided with the sorting pieces 54a and 54b formed in the chaff sheave 31 and the leakage holes 54B and 54C that are provided with the sorting pieces 54a and 54b depends on the types of grains to be selected. Various changes can be made accordingly.

  In addition, a plurality of leakage holes 54C formed in a rectangular shape in plan view so as to have a short rectangular selection piece 54b on the front side of the selection plate 54 are arranged between the front row leakage holes 54C. You may make it form in a zigzag form where the leakage hole 54C is located.

  As shown in FIG. 3, of the selected air from the tang 20, the selected air passing through the upper air passage R <b> 1 passes through the air passage R <b> 4 formed in the sheave case 29 to the second support plate 45 of the handling cylinder 16. It comes to flow toward. Thereby, the threshing processed product that is prevented from flowing toward the lower side in the threshing processing direction by the second support plate 45 can be wind-winded toward the periphery of the handling cylinder 16, and as a result, the threshing processed product is supported in the second support. It is possible to avoid the possibility of depositing immediately before the plate 45 and hindering the threshing process.

  As shown in FIGS. 3 and 6, the handle 16 is configured such that the handle teeth 48 </ b> A located at the rear end thereof are positioned rearward of the rear end of the receiving net 17 and face the discharge port 18. That is, since the receiving net 17 is not present at the rear end of the handling cylinder 16, a relatively large space is formed around the receiving net 17. Even if the cereals are entangled, the threshing cereals come out of the tips of the teeth 48A due to the centrifugal force associated with the rotation of the case 16, and as a result, the teeth are treated at the rear end of the handle 16. It is possible to effectively suppress the retention of the shed cereal meal due to the catch on 48A, and it is possible to promote the release of the shed cereal meal from the discharge port 18.

    [Another embodiment]

[1] The handling cylinder 16 may not be provided with the scraping portion 41, and the scraping portion 41 is provided with an orthodontic tooth or a handling tooth 48 instead of the helical tooth 43. Also good.

[2] As the handling cylinder 16, a round bar steel material, a square bar steel material, a square pipe steel material, an angle material, a channel material, or the like may be used for each handling frame (main body constituent member) 47.

[3] In the handling cylinder 16, the number of equipment of the handling cylinder frames (main body constituent members) 47 can be variously changed. For example, eight handling cylinder frames 47 may be installed.

[4] In the handling cylinder 16, a plurality of handling cylinder frames (main body constituent members) 47 may be fixed to the support plates 44 to 46 so that their orientation cannot be changed.

[5] The handling cylinder 16 may be configured in a drum shape having a plate formed in a cylindrical shape as a main body constituting member 47.

[6] All the teeth 48 mounted on the main body constituent member 47 may be fixed by welding to the main body constituent member 47, or may be detachably bolted to the main body constituent member 47.

[7] A guide surface for guiding all of the teeth 48 or a part of the teeth 48 mounted on the main body constituting member 47 toward the lower side in the threshing process direction as the handle 16 rotates. L may be formed so as to have a feather shape, and the front end portion functions as a guide unit that guides the threshing product toward the lower side in the threshing processing direction as the handling cylinder 16 rotates. It may be bent in a letter shape.

[8] As the tooth-handling 48, a square bar steel material, a round pipe material or the like may be employed, or a U-shaped or V-shaped bent shape may be employed.

[9] Various changes can be made to the arrangement interval of the tooth handling teeth 48. For example, when the number of equipment of the handling cylinder frame (main body constituent member) 47 is a multiple of 3, each tooth handling 48 is adjacent to each other. In addition, the number of the handling cylinder frames (main body constituent members) 47 is set so as to be positioned with a shift of 1/3 pitch in the front-rear direction from the tooth handling 48 provided on the main body frame (main body constituent members) 47 of the above. In the case of a multiple of 4, each tooth 48 is positioned so as to be shifted by a quarter pitch in the front-rear direction from the tooth 48 mounted on the adjacent barrel frame (main body constituent member) 47. Arrangement may be set. Also, for example, the arrangement interval of the tooth handling 48 is made different between the front side and the rear side so that the front-rear spacing of the tooth handling 48 on the rear side is larger than the front-rear spacing of the tooth handling 48 on the front side. You may do it.

[10] When all the dust feed valves 49 or some of the dust feed valves 49 provided on the top plate 24 are placed on either the left or right side edge 24C of the top plate 24 or both the left and right side edges 24C. You may make it form in the short length which is not.

[11] The dust feed valve 49 may be configured to be movable so that the degree of opening can be adjusted according to the amount of threshing processed material in the handling chamber 14 so that the threshing performance and the threshing efficiency can be further improved.

[12] The top plate 24 may be formed such that the curved portion 24A is curved along the rotation locus K drawn by the tip of the tooth handle 48. Further, instead of the bending portion 24A, the bending portion may be configured to be bent so as to cover the upper side of the handling cylinder 16 from above.

14 Handling chamber 15 Support shaft 16 Handling cylinder 24 Top plate 47 Main body component 48 Handling teeth 49 Dust feed valve

The present invention, threshing apparatus, and relates to all culm on type Konbai down mounted with the threshing apparatus.

As a threshing structure for the above-described threshing apparatus and whole throw-in type combine harvester, it is common to equip the handling chamber with a handling cylinder configured to have helical handling teeth on the outer periphery (for example, Patent Document 1).

JP-A-11-266666

  In other words, in the all-throw-in type combine combiner, the threshing device is not equipped with a feed device such as a feed chain for the threshing device as in the self-removable combine combiner. Thus, with the rotation of the barrel, the threshing product is screwed toward the lower side in the threshing process direction while being threshed.

However, when a spiral tooth-handling is provided on the outer periphery of the barrel as described above, the threshing action of the tooth-handling wall and the squeezing of the processed threshing product becomes insufficient, and the grain is made into a single grain. since make it difficult to promote, there is room for improvement in terms of improving the threshing performance.

An object of the present invention is to provide a threshing apparatus, and all the culm on type Konbai down mounted with this which can be improved threshing performance.

In order to achieve the above object, the threshing apparatus according to the present invention includes a handling cylinder that performs a threshing process on the harvested cereal meal supplied to the handling chamber by being rotationally driven around a support shaft . the pre-Symbol threshing drum, in a posture along the support shaft, so as to support a plurality of rod-shaped threshing drum frame to be deployed so as to be aligned at a predetermined distance in a circumferential direction of the threshing drum, their threshing drum frame A plurality of support plates arranged in the front-rear direction in a posture projecting outward from the handle frame to the support plate provided on the front and rear of the support shaft and the handle frame, respectively . And a plurality of attachment holes formed in the treatment frame, and the treatment teeth are inserted into the attachment holes and fixed to the treatment frame .

According to this characteristic structure, culms mowing supplied to threshing chamber in association with the rotation of the threshing drum, Keru receive a threshing action by many striking and narrowing combing with multiple扱歯.

That is, it is possible to sufficiently obtain a suitable threshing action by providing a plurality of teeth on the handle cylinder and hitting or biting the teeth on the threshing product.

Therefore, a threshing device capable of improving the threshing performance can be provided.

Hereinafter, the characteristic configurations of the threshing apparatus, which are considered to be more advantageous when added to the above characteristic configuration, are listed.
The teeth are supported on the barrel frame at two locations on the radially inner side and radially outer side of the barrel.
The mounting hole penetrates the handling cylinder frame.
The teeth are detachably fixed to the barrel frame with nuts.
The teeth are made of stepped round bar steel.
The teeth are fixed by welding to the barrel frame.
The teeth are welded on the radially inner side of the barrel.
The teeth are welded on the radially outer side of the barrel.
The teeth are made of stepless round bar steel.
The center of the tooth treatment is located on a line passing through the center of the support shaft and the center of the treatment drum frame.
The teeth are mounted on the barrel frame in a cantilever-like posture toward the outside of the barrel.
The plurality of teeth are mounted on the barrel frame side by side at a constant pitch in the longitudinal direction of the barrel frame.
Of the two barrels adjacent to each other in the rotation direction of the barrel, the teeth of one barrel frame and the teeth of the other barrel frame are shifted from each other in the longitudinal direction of the barrel frame. It is attached at the position.
An inner space communicating with the handling chamber is formed inside the handling cylinder, and a support member is provided on the handling cylinder to separate the inner space in the front-rear direction.
A treatment process is performed by striking the treatment cylinder frame and the tooth treatment while stirring the treatment object around the treatment cylinder and the treatment object that has entered the internal space.
The handling section of the handling cylinder includes a first support plate as the support plate integrally provided at the front portion of the support shaft, a third support plate as the support plate integrally provided at the rear portion of the support shaft, A second support plate integrally provided at the front and rear intermediate portions of the support shaft.
The present invention also relates to an all-fired combine combine equipped with a threshing apparatus having any one of these characteristic configurations.

Whole side view of all throwing type combine harvester Overall plan view of all throwing type combine harvester Longitudinal side view of threshing device Partially longitudinal front view showing the configuration of the front end of the threshing device Partially longitudinal front view showing the configuration of the front and rear intermediate part of the threshing device Plan view of the main parts showing the configuration of the handling cylinder and conveyance auxiliary member Cross-sectional plan view of the main part showing the configuration of the barrel Longitudinal rear view of the barrel showing the configuration of the barrel Cross-sectional plan view of the main part showing another configuration of the barrel Longitudinal front view of the main part showing the configuration of the top plate Cross-sectional plan view of the main part showing the length and arrangement of the dust delivery valve The top view of the principal part which shows the structure of a conveyance auxiliary member Longitudinal side view of the main part showing the configuration of the conveyance auxiliary member Perspective view of main part showing configuration of receiving network Perspective view of main part showing configuration of chaff sheave

FIG. 1 shows an overall side view of an all-throw- type combine that harvests rice, wheat, and the like. This combine is attached to a vehicle body frame 1 made of square pipe steel or the like on an engine 2 or an unshown figure. A transmission and the like are mounted, and a pair of left and right crawler type traveling devices 3 driven by power from the engine 2 transmitted via the transmission and the like are mounted on the lower part of the vehicle body frame 1. In addition, a cutting and conveying device 4 that cuts and conveys the planted cereals to be harvested and is moved backward is connected to the left half of the body frame 1 to the harvested cereals from the cutting and conveying device 4. On the other hand, the threshing device 5 for performing the threshing process and selecting the processed product obtained by the threshing process is mounted, and the grains from the threshing device 5 are stored in the right half of the body frame 1. Along with the storage of the stored grains Equipped with a bagging device 6 which enables and is configured to form a driver's section 7 in front portions of the bagging apparatus 6 of the body frame 1.

  The left and right crawler type traveling devices 3 are driven at a constant speed based on the swinging operation of the control lever 8 provided in the boarding operation unit 7 in the left-right direction, and thus the straight traveling state appears. It is comprised so that a turning state may appear by doing.

As shown in FIG. 1 and FIG. 2, the cutting and conveying device 4 is configured such that the dividers 9 provided on the left and right ends of the front part of the vehicle body travel with the planted cereals to be harvested and the harvested cereals not to be harvested. Rotating reel 10 deployed above the front part of the planted cereal rice cake, scrapes the planted cereal rice harvested by the left and right dividers 9 toward the rear, and equips it at the bottom. The clipper-shaped cutting mechanism 11 cuts the planted side of the planted culm to be harvested, and the auger 12 deployed behind the cutting mechanism 11 is the planted cereal (cutted cereal culm after cutting by the cutting mechanism 11). ) Are gathered at a predetermined position in the left-right direction, and are fed backward at the predetermined position, and a feeder 13 composed of a transport conveyor extending from the predetermined position to the front upper part of the threshing device 5 threshs the harvested cereals from the auger 12 To be transported toward the device 5 It is configured. Further, the threshing device 5 and the feeder 13 are expanded and contracted by a hydraulic lifting cylinder (not shown) installed over the body frame 1 and the feeder 13 based on the swinging operation of the control lever 8 in the front-rear direction. The swaying movement of the cutting mechanism 11 with respect to the planted cereal can be adjusted by the up-and-down swinging with the connecting point as a fulcrum.

  As shown in FIGS. 3 to 5, the threshing device 5 is a handling cylinder 16 that rotates in a handling chamber 14 formed in the upper part thereof with a support shaft 15 that is laid in the conveying direction of the harvested cereal rice cake as a fulcrum. And a lower end of the threshing device 5 in the threshing processing direction, and a receiving net 17 formed in a U shape in front view covering the lower side of the handling cylinder 16 from below. A discharge port 18 is formed at the rear of the receiving net 17, a swing sorting mechanism 19 is provided below the receiving net 17, and a red pepper 20 is provided in front of and below the swing sorting mechanism 19. The first recovery portion 21 is formed below the front side of the front side, the second recovery portion 22 is formed below the rear side of the swing sorting mechanism 19, and the discharge port 23 is formed behind the swing sorting mechanism 19. A top plate 24 that covers the upper side of the trunk 16 from above is provided.

  The handling chamber 14 is partitioned and formed by a receiving net 17 that covers the handling cylinder 16, a top plate 24, and the like, a supply port 25 is formed at a lower part of the front end, and the rear end of the feeder 13 is connected to the supply port 25. The whole of the harvested cereal meal conveyed by the feeder 13 is input and supplied from the supply port 25 as a threshing processed product.

  The handling cylinder 16 has a support shaft 15 that is rotatably mounted on the front wall 26 and the rear wall 27 of the threshing device 5, and is supported by the support shaft 15 with power from the engine 2 transmitted through the carp 20 or the like. The threshing process is applied to the harvested cereals supplied to the handling room 14 by being rotated clockwise as viewed from the front, and the threshing process is performed on the harvested cereals while promoting the singulation of the grains. Transport toward the rear, which is the lower side of the direction.

  The receiving net 17 is a concave receiving net formed in a lattice shape, receives the harvested cereal meal supplied to the handling chamber 14, assists the threshing process of the handling cylinder 16 with respect to the harvested grain meal, and is obtained by the threshing process. Swaying sorting mechanism such as threshing cereal mash while letting the cerealized grains and cereals with branch branch or swarf generated by threshing process leak to the swaying sorting mechanism 19 below Prevent leakage to 19.

  The swing sorting mechanism 19 has a rough sorting grain pan 30, chaff sheave 31, and stroller 32 in that order on the sheave case 29 that is driven to swing back and forth by a cam-type drive mechanism 28. In the lower part of the sheave case 29, a fine sorting grain pan 33 and a grain sheave 34 are arranged in that order from the front side of the sheave case 29. And the sorting processed material leaked from the receiving net 17 in a state where single grains and swarf are mixed is received by the upper grain pan 30, chaff sheave 31 or Strollac 32, and rough sorting processing by sieve sorting is performed. The processed material leaked from the chaff sheave 31 in a state where a single grain or a grain with branch stems is mixed is received by the lower grain pan 33 or the grain sieve 34 and subjected to a fine sorting process by sieving. Applying and sorting the processed products, single grains as No. 1, mixed grains such as grain with branch branch and No. 2 as No. 2, and dust such as Soup as No. 3 To sort.

The carp 20 is driven by the power from the engine 2 transmitted through the belt-type transmission mechanism 35, and is driven to rotate about the support shaft 20A, thereby generating a sorting wind. By being supplied toward the sorting processed product leaked from the receiving network 17 or the sorting processed product sorted by the swing sorting mechanism 19 through the air passages R1 to R3, A sorting process is performed to blow off swarf or the like having a small specific gravity from the sorted product, and convey it toward the outlet 23 on the lower side in the threshing process direction.

The first recovery unit 21 recovers the single-grained grains that have leaked from the grain sieve 34 of the swing sorting mechanism 19 in the state where dust such as straw scraps has been removed by the sorting wind from the Karatsu 20. Then, the recovered first item is conveyed toward the lifting screw 37 (see FIG. 2) that is connected to the right end of the first screw 36 that is arranged in the left-right direction at the bottom.

  The second recovery unit 22 includes a mixture of grains such as branches and cereals that flow down from the rear end of the grain sieve 34 without leaking from the grain sieve 34 of the rocking sorting mechanism 19, and the rocking sorting mechanism 19. A mixture such as cereal grains and sawdust leaking from the Strollac 32 is collected as No. 2 and the No. 2 screw 38 arranged at the bottom side of the collected No. 2 is arranged at the right end. To the second reduction mechanism 39 (see FIG. 2) that is connected in communication.

  The lifting screw 37 lifts the first item conveyed by the first screw 36 and supplies it to the grain tank 40 provided at the upper part of the bagging device 6 (see FIGS. 1 and 2). The second reduction mechanism 39 includes a reprocessing unit (not shown) that performs a threshing process again on the second item conveyed by the second screw 38, and the second item after the threshing process by the reprocessing unit. It is transported and returned to the swing sorting mechanism 19 (see FIG. 2).

  The discharge port 23 is used for removing cereal cereals that do not leak from the receiving net 17 and flow down from the discharge port 18, and swarf sorted and conveyed to the rear of the oscillating and sorting mechanism 19 by a sieving sorting process or a wind sorting process. Release outside the vehicle.

  As shown in FIGS. 3 to 8, the handling cylinder 16 includes a frustoconical scoring portion 41 provided at the front end portion thereof, and a handling processing portion 42 connected to the rear end of the scavenging portion 41. Has been. On the outer peripheral surface of the scraping unit 41, two spiral teeth 43 that scrape and convey the harvested cereal meal supplied from the supply port 25 toward the rear handling processing unit 42 when the handling cylinder 16 is rotated are integrated. Equipped.

The handling unit 42 includes a first support plate (corresponding to a support plate) 44 integrally provided at the front portion of the support shaft 15, and a second support plate (corresponding to a support member) 45 provided integrally with the front and rear intermediate portions of the support shaft 15. A third support plate (corresponding to a support plate) 46 provided integrally with the rear end portion of the support shaft 15, and a circumferential direction of the handling cylinder 16 in a posture in the front-rear direction along the support shaft 15 by the support plates 44 to 46. a round pipe steel six made of threshing drum frame 4 7, and, each thresher frame 47 which is supported so as to be arranged at regular intervals, the direction from the threshing drum frame 47 to the outside of the threshing drum 16 And a plurality of teeth 48 arranged so as to be arranged at a predetermined interval in the front-rear direction.

  That is, the handling cylinder 16 is arranged and arranged so that a plurality of handling teeth 48 projecting outward from the handling cylinder 16 are arranged at a predetermined interval in the circumferential direction and the front-rear direction of the handling processing unit 42. The internal space S of the part 42 communicates with the handling chamber 14 so as to allow entry of the threshing product into the internal space S. As a result, during the rotation operation, the surrounding threshing product and While stirring the threshing processed material that has entered the internal space S, the threshing processing is performed on the threshing processed product by striking or punching the handling barrel frame 47 and the tooth handling 48.

Further, the internal space S of the handling processing unit 42 communicates with the handling chamber 14, so that even when a large amount of harvested cereal meal is supplied to the handling chamber 14 as a threshing processed product, the internal space of the handling processing unit 42. S can be effectively used as a processing space for threshing treatment, and thereby, retention of threshing products in the processing space and saturation of the processing space can be avoided. As a result, the threshing treatment product leaks from the receiving net 17 without sufficient threshing processing due to the retention of the threshing treatment product or the saturation of the processing space, or the load required for the threshing treatment increases and is handled. The occurrence of inconvenience such as damage to the transmission system with respect to the trunk 16 can be avoided in advance.

  When the handling cylinder 16 is rotated, not only the plurality of tooth handling teeth 48 but also the six handling cylinder frames 47 forming the handling processing section 42 of the handling cylinder 16 are handled handling members that act on the threshing product. Therefore, it is possible to improve threshing performance and threshing efficiency.

  Moreover, by the threshing process on the front side of the handling cylinder 16, many grains become a single grain and leak from the receiving net 17, so that the amount of the threshing processed product decreases in the front and rear intermediate parts, The second support plate 45 prevents the threshing product in the inner space S of the handling cylinder 16 from flowing to the lower side in the threshing processing direction, and guides the threshing treatment product around the handling cylinder 16 as the handling cylinder 16 rotates. , Threshing of the threshing product by hitting or swallowing the tooth-handling 48, etc., or leakage of the single cereal grain from the receiving net 17 is promoted, so that the single cereal grain contained in the threshing product The occurrence of No. 3 loss caused by grains and unthreshed cereals passing through the inner space S of the barrel 16 and being discharged together with the shed cereals from the discharge port 18 at the lower end of the threshing processing direction. Can be blocked.

  Further, when the handling cylinder 16 is rotated, the outside air sucked from the supply port 25 along with the rotation of the helical teeth 43 together with the harvested cereal that is scraped and transported by the action of the scraping portion 41 is surrounded by the circumference of the handling cylinder 16. And flow smoothly into the internal space S of the handling unit 42, thereby preventing the swarf generated from the threshing process from flowing out from the supply port 25 to the feeder 13 and the threshing processed product. The threshing process in the lower direction can be carried more quickly.

  In addition, the outside air sucked from the supply port 25 passes through the inside of the feeder 13 connected to the supply port 25, and the feeder 13 includes the cutting mechanism 11 and the auger 12. Since the supply port 25 communicates with a carry-out port (not shown) for carrying out the recovered cereals formed in the cutting and collecting part, the suction action by the rotation of the helical teeth 43 is caused when the handling cylinder 16 is rotated. In addition, dust such as sawdust generated in the cutting and collecting process in the cutting and collecting unit, along with the outside air, from the carry-out port of the cutting and collecting unit through the internal space of the feeder 13 and the supply port 25, It will flow into the internal space S of the handling processor 42. As a result, it is possible to suppress the accumulation and soaring of sawdust etc. in the harvesting and collecting part, the poor transportation of the harvested cereals due to the deposition and the deterioration of the working environment and visibility due to the soaring, etc. Can be suppressed.

  Each of the support plates 44 to 46 has a circular shape centered on the support shaft 15, and a barrel frame 47 is bolted to the outer peripheral side of the support plate 44 at an equal distance from the support shaft 15.

  That is, on the outer peripheral side of each support plate 44 to 46, six handling cylinder frames 47 are arranged in a state of being arranged at regular intervals in the circumferential direction so that the cylinder diameter of the handling cylinder 16 is increased. Thus, it is possible to prevent the harvested cereal from being wrapped around the handling cylinder 16.

  Each barrel frame 47 can be reoriented to a normal posture in which the front-rear direction coincides with the front-rear direction of the barrel 16 and an inverted posture in which the front-rear direction is opposite to the front-rear direction of the handle barrel 16, and Bolts are connected to the support plates 44 to 46 so that the front and rear directions with respect to the adjacent handling cylinder frames 47 are reversed.

Each handling frame 47 has a plurality of mounting holes 47A and 47B that allow the handling teeth 48 to be mounted in a state where the mounting holes 47A and 47B are arranged at a constant pitch P in the front-rear direction, and from the front end of the handling frame 47 The distance L1 to the center of the hole 47A and the distance L2 from the rear end of the handling frame 47 to the center of the last mounting hole 47A are made different from each other by a half pitch (= 1 / 2P). .

  Each handling cylinder frame 47 is connected to and supported by each of the support plates 44 to 46 in a state where the front and rear directions with respect to adjacent ones are reversed, and thereby, the six handling cylinder frames 47 have the same configuration. Can be positioned in a state of being shifted by a half pitch in the front-rear direction from the teeth 48 of the adjacent cylinder frames 47. As a result, the striking interval of the teeth 48 against the threshing processed product can be reduced without reducing the interval between the adjacent teeth 48.

  That is, while reducing the cost by making each handling cylinder frame 47 the same structure, the smaller the gap between adjacent handling teeth 48, the easier it is to invite the cereals in the threshing processed product with respect to the handling teeth 48. While effectively preventing clogging of the threshing product resulting from the entanglement, it is possible to improve the threshing performance by increasing the number of times the tooth handling 48 is struck against the threshing product.

  Further, since each handling cylinder frame 47 is equipped so that the orientation can be changed between the normal posture and the inverted posture, the handling teeth 48 positioned on the upper side in the threshing processing direction, which is relatively easy to wear due to a large amount of the threshing processed material. When wear becomes significant due to long-term use, the direction of each barrel frame 47 is changed, so that the plurality of teeth 48 provided on each barrel frame 47 are relatively easily worn away. The position of the upper teeth 48 and the lower teeth in the threshing direction that are difficult to wear can be changed to a state where they are exchanged at a stroke, whereby the teeth 48 on the lower side in the threshing direction with less wear. Can be effectively used as the tooth handling 48 on the upper side in the threshing process direction with a large amount of processed threshing.

  Of the plurality of mounting holes 47A and 47B, four (two front and rear) mounting holes 47A located at both front and rear ends of each handling cylinder frame 47 are formed to have a smaller diameter than the mounting holes 47B located at the intermediate portion. ing.

  Of each tooth 48, a tooth 48A that is attached using a small-diameter attachment hole 47A is composed of a stepped round bar steel material having a small-diameter portion 48a that is inserted through the attachment hole 47A. A nut is detachably attached to the barrel frame 47 so as to be positioned on a line passing through the center of the support shaft 15 and the center of the barrel frame 47.

  The tooth 48B attached using the intermediate attachment hole 47B is made of a stepless round bar steel material, and the center thereof is located on a line passing through the center of the support shaft 15 and the center of the handling cylinder frame 47. As shown in FIG.

  That is, since each tooth 48A located at both front and rear ends of the handling section 42 is detachable, the teeth 48A are significantly worn by long-term use including changing the direction of the handling frame 47. Can be easily replaced with a new tooth-handling 48A.

  Further, on the lower side of the threshing treatment direction in which the amount of threshing cereal increases, as shown in FIG. 9, if deployed in a state in which the teeth 48 </ b> A located at the rear end of the handling cylinder 16 are thinned, the handling cylinder rear end The interval between the tooth-handling 48A at the portion increases, and the retention of the threshing cereal caused by the catch on the tooth-handling 48A at the rear end of the barrel can be effectively suppressed. Release from the outlet 23 can be facilitated.

As shown in FIGS. 3 to 5, 10, and 11, the top plate 24 includes a curved portion 24 </ b> A that curves substantially along the rotation locus K of the tooth handling tip, and a semicircular shape that is located at both front and rear ends of the curved portion 24 </ b> A. The vertical wall portion 24B and the straight side edge portions 24C positioned on the left and right of the curved portion 24A, etc.
6 can be opened and closed using a plurality of hinges 24D provided on the left side edge 24C as a fulcrum in a closed state in which the upper side of 6 is closed from above and an open state in which the upper side of the handling cylinder 16 is opened. It is comprised so that it may become. The right side edge 24C is provided with a plurality of bolts 24E for fixing the top plate 24 in a closed state.

  On the inner surface of the curved portion 24A, there are a plurality of dust feed valves 49 that guide the threshing processed material conveyed to the upper part of the handling chamber 14 toward the lower side in the threshing processing direction in accordance with the rotation operation of the handling cylinder 16. It is fixedly equipped so as to line up in the direction at a predetermined interval. Among the plurality of dust delivery valves 49, the foremost dust delivery valve 49A is formed in an arc shape extending from the front vertical wall portion 24B to the left side edge portion 24C, and the other dust delivery valves 49B are left and right side edge portions. It is formed in an arc shape extending over 24C.

  That is, by providing the top plate 24 with the curved portion 24 </ b> A, the threshing processed material that has been scraped and conveyed to the upper portion of the handling chamber 14 by the plurality of tooth handling 48 and the like as the handling cylinder 16 rotates is applied to the top plate 24. Without violently colliding, it can be smoothly guided toward the receiving net 17 on the lower side of the threshing process direction along the top plate 24 and the dust feed valve 49, and each dust feed valve 49 can be moved to the left side. 49A of each threshing processed material conveyed to the upper part of the handling chamber 14 with rotation of the handling cylinder 16 by having formed in the long circular arc shape over the side edge part 24C or the left and right side edge parts 24C. The guiding action of the threshing can be effectively improved, so that each tooth-handling 48 is not a shape having a conveying action for the threshing processed product, but a shape dedicated to threshing that can suitably hit or plow the threshing processed product. Threshing processed threshing products while forming Towards sense direction downstream side can be favorably transported guide, a result, it is possible to improve the threshing performance and transport performance for threshing treated.

  A steel plate seam member 50 formed so as to have a guide surface connected to the inner surface of the curved portion 24A and the inner edge of the receiving net 17 is detachably bolted to the left and right side edge portions 24C. That is, the seam member 50 that is easily worn due to intense contact with the threshing product by being positioned at the seam between the receiving net 17 and the top plate 24 is configured to be detachable. As in the case of being integrally formed with the joint member 50, it is possible to appropriately treat the wear of the joint member 50 without incurring the trouble and economical disadvantage of replacing the entire top plate 24 by the wear of the joint member 50.

  Incidentally, a small clearance is set between the tip of each tooth-handling 48 and the lower edge of each dust feed valve 49 in order to improve the guidance of the threshing processed product by the dust feed valve 49. In addition, between the tip of each tooth-handling 48 and the inner edge of the receiving net 17, the tip of each tooth-handling 48 and each dust feed valve are used in order to promote the leakage of single grains from the receiving net 17. The clearance larger than the clearance set between the lower edge of 49 is set.

  As shown in FIGS. 3, 4, 6, 12, and 13, between the front wall 26 of the threshing device 5 and the receiving net 17, the harvested cereal meal supplied from the supply port 25 is received, A conveyance assisting member 51 is provided to assist the raking and conveying of the harvested cereal meal by the raking part 41 of the handling cylinder 16. The conveyance auxiliary member 51 is configured by two plates 51 </ b> A that are bolted in a substantially U shape in front view to cover the lower side of the handling cylinder 16 from below, and front and rear of the front wall 26 of the threshing device 5 and the upper portion of the threshing device 5. Bolts are detachably connected to a pair of left and right support frames 52 arranged in the direction. That is, since the conveyance auxiliary member 51 that is easily contacted with the harvested cereal grind and easily wears is configured to be detachable, the conveyance auxiliary member 51 is integrally formed with the receiving net 17 or the left and right support frames 52. The treatment for the abrasion of the conveyance auxiliary member 51 can be appropriately performed without incurring the trouble and the economical disadvantage of replacing the receiving mesh 17 or the left and right support frames 52 together with the conveyance auxiliary member 51 due to the abrasion of the conveyance auxiliary member 51.

As shown in FIGS. 3, 5, 6, and 14, the receiving net 17 is configured by four receiving net members 53 formed in the same shape, and is detachably bolted to the left and right support frames 52. Yes. Each receiving net member 53 has a base frame 53A in which a plurality of vertical bars 53B made of strip-shaped steel plates are arranged in the front-rear direction in a state of being spaced apart from each other in the circumferential direction of the handling cylinder 16, and are formed in a curved shape in a circular arc shape. A plurality of first horizontal bars 53C made of steel plates are arranged in the left-right direction with a predetermined interval in the front-rear direction as the support shaft direction of the handling cylinder 16, and a plurality of first wires made of piano wire curved in an arc shape are arranged. The two horizontal rails 53D are arranged in the left-right direction with a certain interval in the front-rear direction between the adjacent first horizontal rails 53C, and the mesh has a length in the direction along the circumferential direction of the handling cylinder 16. Is formed in a horizontally long rectangle that is longer than the length in the direction along the front-rear direction.

  That is, the receiving net 17 is configured so that the mesh is a horizontally long rectangle in the rotation direction of the handling cylinder 16, so that the single grain obtained from the threshing process on the harvested corn straw is received by the receiving net 17. Therefore, it is possible to avoid the occurrence of degranulation due to the suppression of leakage of the single-grained grains from the receiving net 17. In addition, since the receiving net members 53 are formed in the same shape, the productivity and assembly of the receiving net 17 can be improved.

  As shown in FIGS. 3 and 15, the rough sorting chaff sheave 31 is composed of a single sorting plate 54, and is bolted to the sheave case 29 in a back-up and inclined posture located on the lower side in the sorting direction. ing.

  On the front side of the sorting plate 54 (1/3 of the entire sorting plate 54), a plurality of leakage holes 54A formed in a rectangular shape in plan view are arranged between the leakage holes 54A in the front row. It is formed in a zigzag pattern in which the lower holes 54A are located. On the rear side of the sorting plate 54 (2/3 of the sorting plate 54 as a whole), a plurality of leakage holes 54B and 54C formed in a rectangular shape in plan view having sorting pieces 54a and 54b are leaked in the front row. Between the holes 54B and 54C, the rear row leakage holes 54B and 54C are arranged in a staggered manner.

  Among the sorting pieces 54a and 54b, the sorting piece 54a located on the left and right center side of the sorting plate 54 is formed so as to be narrower and closer to the upper side in the sorting direction. The sorting pieces 54b located at the left and right ends of the sorting plate 54 are rectangular in shape shorter than the sorting pieces 54a on the left and right center sides, and are formed so as to be positioned higher on the lower side in the sorting direction.

  That is, since the chaff sheave 31 for rough sorting is configured by a single sorting plate 54, for example, the chaff sheave 31 is configured by arranging a large number of chaff flips made of strip steel plates so as to be spaced apart in the front-rear direction. Compared with the case where it does, the simplification of a structure and the reduction of cost can be aimed at.

  And the front part of the chaff sheave 31 is formed by forming the leakage hole 54A not provided with the sorting pieces 54a and 54b on the front part side of the chaff sheave 31 to which the processed product with a high content of single grains is supplied. The number of single grains that leak from the side to the lower grain pan 33 and the grain sieve 34 increases, and as a result, the recovery rate of the single grains can be increased.

Further, the leakage holes 54B and 54C provided with the sorting pieces 54a and 54b are formed in a staggered manner in the front, rear, left and right sides on the rear side of the chaff sheave 31, so that the sorting processed product on the chaff sheave 31 is not separated in the sieve sorting process. It will be evenly distributed in the left-right direction, so that the leakage of single grains from the respective leakage holes 54B, 54C can be promoted. In addition, since the chaff sheave 31 is installed in a rearwardly inclined posture, the chaff sheave 31 moves the sorting processing product to the upper side in the sorting processing direction in the sieve sorting process as compared with the case where the chaff sheave 31 is installed in the horizontal posture. This increases the force that pushes out the product, and this suppresses the transport of the sorted product to the lower side of the sorting direction, and the vertical movement of the sorted product becomes intense, making the specific gravity difference sorting of the sorted product more effective. Because of this, each leakage hole 54B, 54 of the grain of large specific gravity
Leakage from C is promoted, and generation of No. 3 loss in which single grains are released from the outlet 23 to the outside of the vehicle can be effectively suppressed, and as a result, improvement in grain recovery efficiency is achieved. Can do.

  Further, the sorting pieces 54b at the left and right ends of the chaff sheave 31 are formed to be shorter than the sorting pieces 54a at the center of the left and right sides, so that the grains from the leakage holes 54C at the left and right ends where the sorting processed product in the chaff sheave 31 is easy to accumulate. Leakage of grains and the like can be promoted, and as a result, it is possible to avoid a reduction in sorting efficiency due to the accumulation of sorting processed products at the left and right ends of the chaff sheave 31.

  Incidentally, the ratio of the leakage holes 54A that are not provided with the sorting pieces 54a and 54b formed in the chaff sheave 31 and the leakage holes 54B and 54C that are provided with the sorting pieces 54a and 54b depends on the types of grains to be selected. Various changes can be made accordingly.

  In addition, a plurality of leakage holes 54C formed in a rectangular shape in plan view so as to have a short rectangular selection piece 54b on the front side of the selection plate 54 are arranged between the front row leakage holes 54C. You may make it form in a zigzag form where the leakage hole 54C is located.

  As shown in FIG. 3, of the selected air from the tang 20, the selected air passing through the upper air passage R <b> 1 passes through the air passage R <b> 4 formed in the sheave case 29 to the second support plate 45 of the handling cylinder 16. It comes to flow toward. Thereby, the threshing processed product that is prevented from flowing toward the lower side in the threshing processing direction by the second support plate 45 can be wind-winded toward the periphery of the handling cylinder 16, and as a result, the threshing processed product is supported in the second support. It is possible to avoid the possibility of depositing immediately before the plate 45 and hindering the threshing process.

  As shown in FIGS. 3 and 6, the handle 16 is configured such that the handle teeth 48 </ b> A located at the rear end thereof are positioned rearward of the rear end of the receiving net 17 and face the discharge port 18. That is, since the receiving net 17 is not present at the rear end of the handling cylinder 16, a relatively large space is formed around the receiving net 17. Even if the cereals are entangled, the threshing cereals come out of the tips of the teeth 48A due to the centrifugal force associated with the rotation of the case 16, and as a result, the teeth are treated at the rear end of the handle 16. It is possible to effectively suppress the retention of the shed cereal meal due to the catch on 48A, and it is possible to promote the release of the shed cereal meal from the discharge port 18.

    [Another embodiment]

[1] The handling cylinder 16 may not be provided with the scraping portion 41, and the scraping portion 41 is provided with an orthodontic tooth or a handling tooth 48 instead of the helical tooth 43. Also good.

The [2] thresher 16, each thresher frame 4 7, round bar steel material, corner bars material, square pipe steel, angle members, or channel member or the like may be those adopted.

[3] In thresher 16, equipped quantity of the threshing drum frames 4-7 and various modifications may be made, for example, it may be equipped with threshing drum frame 47 of eight.

[4] In thresher 16, a plurality of threshing drum frames 4 7 may be fixed to the orientation unchangeable in each support plate 44 to 46.

[5] All the teeth 48 mounted on the barrel frame 47 may be fixed by welding to the barrel frame 47, or may be detachably connected to the barrel frame 47 with bolts.

[6] A guide surface that guides all the teeth 48 or a part of the teeth 48 mounted on the barrel frame 47 toward the lower side in the threshing process direction as the barrel 16 rotates. L may be formed so as to have a feather shape, and the front end portion functions as a guide unit that guides the threshing product toward the lower side in the threshing processing direction as the handling cylinder 16 rotates. It may be bent in a letter shape.

[7] As the tooth handling 48, a square bar steel material, a round pipe material, or the like may be employed, or a U-shaped or V-shaped bent shape may be employed.

[8] The arrangement interval of扱歯48 can be variously modified, for example, in the case of a multiple of 3 equipped number of the threshing drum frame 4 7, each扱歯48, next to the threshing drum frame 4 7 so as to be located at 1/3 being shifted pitch in instrumented扱歯48 and longitudinal direction, and, in the case of a multiple of 4 equipped number of the threshing drum frame 4 7, each扱歯48 may be arranged set to be positioned in a state where the扱歯48 that is provided on the threshing drum frame 4 7 next shifted 1/4 pitch in the longitudinal direction. Also, for example, the arrangement interval of the tooth handling 48 is made different between the front side and the rear side so that the front-rear spacing of the tooth handling 48 on the rear side is larger than the front-rear spacing of the tooth handling 48 on the front side. You may do it.

[9] When all the dust feed valves 49 or some of the dust feed valves 49 provided on the top plate 24 are moved to the left or right side edge 24C of the top plate 24 or both the left and right side edge portions 24C. You may make it form in the short length which is not.

[10] The dust feed valve 49 may be configured to be movable so that the degree of opening can be adjusted according to the amount of processed threshing in the handling chamber 14 to further improve the threshing performance and threshing efficiency.

[11] The top plate 24 may be formed such that the bending portion 24A is curved along the rotation locus K drawn by the tip of the tooth-handling 48. Further, instead of the bending portion 24A, it may be configured to have a bent portion that is bent so as to cover the upper side of the handling cylinder 16 from above.

5 Threshing device 14 Handling room 15 Spindle 16 Handling cylinder
42 Handling processor
44 1st support plate (support plate)
45 Second support plate (support member)
46 3rd support plate (support plate)
47 handling frame
47A, 47B mounting hole 48 treats teeth S inner space

Claims (1)

A handling cylinder that performs threshing processing on the harvested cereal grains supplied to the handling chamber by being rotationally driven about a support shaft that is erected along the conveying direction of the harvested cereal grains, and an upper side of the handling cylinder An all-throw-in type combine combiner equipped with a plurality of dust-feeding valves for guiding the harvested cereal rice cake toward the lower side in the threshing treatment direction as the handle is rotated. Threshing structure of
Threshing of a full throwing type combine harvester characterized in that the handling cylinder is constituted by a main body constituting member constituting the main body portion and a plurality of tooth handling teeth projecting outward from the main body constituting member. Construction.

Images