JP2007267755A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester capable of carrying out swinging selection/wind selection of a treated product again by a treating cylinder at a dust-sending port and a conveying body, capable of reducing grain loss from a third product port or the like, and capable of increasing the grain by effectively utilizing the selection width of a selection part. <P>SOLUTION: The combine harvester is equipped with a threshing part 12, the selection part 17 for carrying out the swinging selectin/wind selection of the grain threshed at the threshing part 12. The threshing part 12 has a threshing cylinder 21, the treating cylinder 22 at the dust-sending port for treating the threshed product of the threshing cylinder again by communicating with the dust-sending port by a receiving port, and a branch and peduncle-treating device for treating the second product or the like. The combine harvester also has a conveying body 80 for receiving the treated product discharged from the treating cylinder 22 at the dust-sending port at the lower part of the treating cylinder 22 at the dust-sending port, conveying the treated product in the direction reverse to the sending direction of the degrained product by the treating cylinder 22 at the dust-sending port, and discharging the treated product on the swinging selection device 27 of the selection part 17. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a combine structure including a dust-feed port processing cylinder and a conveyance body.

Conventionally, in a combine, in order to improve the threshing performance and sorting performance, a processing cylinder is arranged in parallel to the rear side of the handling cylinder, and the branch infarction grains and the like that could not be processed by the handling cylinder are sent to the processing cylinder. Such a technique is known.
Japanese Patent Laid-Open No. 6-62647 Japanese Patent Laid-Open No. 7-8092

  In the present invention, the processing object can be again subjected to rocking sorting and wind sorting by the dust feed processing cylinder and the transport body, the grain loss can be reduced from the third port, etc., and the sorting section is sorted. The grain can be increased by effectively utilizing the width. In addition, the sorting width of the sorting unit can be used more effectively, and the processed product can be discharged without hitting the swing sorting device, thereby increasing the number of grains. In addition, the transport body is configured to include a spiral body, and the transport object is received on the spiral surface of the spiral body that rotates the processed object, and the transport is easily performed while transmitting power easily. It is comprised so that it can do.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  In Claim 1, it has a threshing part (12) and the selection part (17) which carries out rocking selection and wind selection of the grain threshed by this threshing part (12), and is handled by this threshing part (12). A drum (21), a dust feeding port processing drum (22) for reprocessing the shattered material of the handling drum with the receiving port communicating with the dust feeding port, and a branch raft processing device for processing the second thing and the like are provided. The combine is configured to receive a processed material discharged from the dust feeding port processing cylinder (22) below the dust feeding port processing cylinder (22), and to send the processed material to the dust feeding port processing cylinder (22). A conveying body (80) is provided which conveys the degranulated material in a direction opposite to the feeding direction and discharges it on the swing sorting device (27) of the sorting section (17).

  In the combine according to claim 1, in the combine according to claim 1, the transport body (80) includes a transport terminal portion that discharges the transported processed material onto the sorting section (17), and the handling cylinder (21). Is located on the front side of the machine body traveling direction with respect to the end plate of the machine body, and the rotational direction of the helical body constituting the transport body (80) is discharged onto the sorting section (17) from below to above. It is the direction to do.

  According to a third aspect of the present invention, in the combine according to the first or second aspect, the processed material from the dust feeding port processing cylinder (22) is received and conveyed on the spiral surface of the rotating spiral body. is there.

Since the present invention is configured as described above, the following effects can be obtained.
As shown in Claim 1, it has a threshing part (12) and the selection part (17) which carries out rocking selection and wind selection of the grain threshed by this threshing part (12), and this threshing part (12) A handling cylinder (21), a dust feeding port processing cylinder (22) for reprocessing the shredded material of the handling cylinder with the receiving port communicating with the dust feeding port, and a branch raft processing device for processing the second thing etc. A combine, which receives a processed product discharged from the dust feeding port processing cylinder (22) below the dust feeding port processing cylinder (22), and supplies the processed material to the dust feeding port processing cylinder (22). Since the transporting body (80) for transporting in the direction opposite to the feeding direction of the degranulated material and discharging onto the rocking sorting device (27) of the sorting section (17) is provided, the processed material is rocked and sorted again.・ Wind sorting is possible, grain loss can be reduced from the third exit, etc., and the grain can be increased by effectively utilizing the sorting width of the sorting section. That.

  According to a second aspect of the present invention, the transport body (80) is configured such that the transport terminal portion for discharging the processed material that has been transported onto the sorting section (17) is more than the terminal portion side plate of the handling cylinder (21). The rotational direction of the spiral body that is located on the front side of the traveling direction and that constitutes the transport body (80) is the direction in which the processed material is discharged from the lower side to the upper side on the sorting unit (17). The sorting width of the part can be used more effectively, and the conveyed processed product can be discharged without hitting the swing sorting device, thereby increasing the number of grains.

  According to the third aspect of the present invention, since the processed material is received from the dust feeding port processing cylinder (22) and conveyed on the spiral surface of the rotating spiral body, it is effective while easily transmitting power. Can be transported.

  Next, embodiments of the invention will be described. 1 is an overall side view of the combine, FIG. 2 is a plan view, FIG. 3 is a side sectional view of the threshing portion and the sorting portion, and FIG. 4 is a rear view. 5 is a side view of the processing cylinder and the processing cylinder network, FIG. 6 is a rear view, FIG. 7 is a side view of the processing cylinder network, and FIG. 8 is a side view showing the positional relationship between the processing cylinder network and the suction fan. FIG. 9 is also a rear view, FIG. 10 is a plan sectional view of the threshing portion, FIG. 11 is a view showing sliding of the processing cylinder, and FIG. 12 is a partially enlarged view of the processing cylinder. FIG. 13 is a view showing another configuration example of the guide rail, and FIG. 14 is a side view of the processing cylinder. 15 is a side sectional view of the threshing portion, FIG. 16 is a side sectional view of the rear portion of the threshing portion, and FIG. 17 is a front view of the threshing portion.

  First, the overall structure of the combine according to the present invention will be described with reference to FIGS. An airframe frame 2 is placed on the crawler type traveling device 1, and a pulling / reaping part 3 is disposed at the front end of the airframe frame 2 so as to be movable up and down. The pulling / reaping part 3 projects a weed plate 4 at the front end to weed the grain straw, raises the case 5 at the rear part thereof, raises the case 5 and rotates the tine 6 protruding from the case 5 A wrinkle is caused, and the stock is cut by the cutting blade 7 disposed at the rear part of the weed plate 4.

  The harvested corn straw is conveyed to the rear by the upper conveying device, the lower conveying device, and the vertical conveying device 8, and the stock is inherited by the feed chain 9 from the upper end of the vertical conveying device 8, and the cereal is stored in the threshing unit 12. The kite is transported. A waste chain 18 is disposed at the rear end of the feed chain 9, and a waste treatment unit 19 including a waste cutter device and a diffusion conveyor is formed below the rear of the waste chain 18. After cutting into pieces, it is released uniformly into the field while spreading.

  In addition, a grain tank 13 for storing the refined grains after sorting is disposed on the side of the threshing section 12, and a cab 14 is disposed in the front of the grain tank 13, while A vertical auger 15a of the discharge auger 15 is erected so that the glen tank 13 can be rotated laterally around the vertical auger 15a, thereby facilitating maintenance of a drive system and a hydraulic system disposed inside the machine. Yes. A discharge conveyor 16 is disposed in the front-rear direction at the bottom of the Glen tank 13, and power is transmitted from the discharge conveyor 16 to the discharge auger 15, so that the inside of the Glen tank 13 is transferred from the tip of the discharge auger 15 to a track or the like. The kernel can be discharged. Further, a sorting unit 17 is disposed below the threshing unit 12, and sorts the grain from grains and sawdust (hereinafter referred to as “processed product”) flowing down from the threshing unit 12. I am trying to carry it.

Here, the said threshing part 12 and the said selection part 17 are demonstrated using FIG.
As shown in FIG. 3, a handling cylinder 21 that pivots in the front-rear direction of the machine body is provided in a handling chamber 28 formed in the threshing portion 12, and tooth handling 21 a, 21 a. Grafting is performed by being planted, and a receiving net 20 is provided around the lower portion of the handling cylinder 21 so that only the processed material falls. A processing cylinder 22 is horizontally mounted in the front-rear direction parallel to the handling cylinder 21 on the grain tank 13 side at the rear part of the handling cylinder 21, and the rear part of the handling cylinder 21 is processed through a dust feed port 23. It communicates with the front part of the cylinder 22, so that unprocessed materials such as branch-grown adhering grains that could not be processed by the handling cylinder 21 are sent to the processing cylinder 22. A processing cylinder net 24 is provided around the lower portion of the processing cylinder 22, and only the processed material falls from the processing cylinder net 24.

  In the sorting unit 17, specific gravity sorting by the swing sorting device 27 and wind sorting by the Kara 26 are performed, and the processed material falling from the threshing unit 12 is sorted into the first thing, the second thing, the sawdust, and the like. The swing sorting device 27 is housed in the machine frame 35, the front portion of the swing sorting device 27 is located below the front end portion of the handling cylinder 21, and the rear portion of the swing sorting device 27 is below the rear end portion of the processing barrel 22. It is extended to. A swing shaft is provided at the front lower part of the swing sorting device 27, and a swing drive mechanism 34 is provided at the rear. The swing body 49 is swinged by the swing drive mechanism 34. .

  A front-flow cereal plate 30 is formed at the front part of the swing sorting device 27, a rear-flow cereal plate 31 is formed below and below the front-flow cereal plate 30, The plate body is formed into a wave shape to make it easier to convey the grains backward. And the net-like grain sheave 32 which is a 2nd selection part is continuously provided in the rear part of the said backward flow grain board 31, and above this grain sieve 32 and the said backward flow grain board 31 is a 1st selection part. A chaff sheave 33 is mounted.

  Further, at the midway position before and after the swing sorting device 27, a first conveyor 36 and a second conveyor 37 are provided in the left-right direction, and a cereal conveyor is connected to the right side of the first conveyor 36. The first thing that has been leaked onto the drifting grain plate 39 of the first conveyor 36 via the swing sorting device 27 is transferred from the first conveyor 36 to the grain tank 13 via the cereal conveyor 38. It is supposed to be transported. A second reduction conveyor 40 is connected to the right end of the second conveyor 37, and the front end of the second reduction conveyor 40 is connected to the second processing device 10. The second product after removing the branch leaf by the branch branch processing cylinder is re-introduced into the sorting start portion of the swing sorting device 27.

  A tang 26 is disposed below the rear portion of the front cereal plate 30 to blow the sorting air to the grain sheave 32 and the chaff sheave 33, and between the first conveyor 36 and the second conveyor 37, the auxiliary pressure feeding fan. A second fan 46 is provided to blow the sorting wind so that the sorting performance does not deteriorate even at the rear of the sorting section 17 where the wind of the sorting wind by the tang 26 is weakened.

  In addition, a suction fan 25 is horizontally disposed above the rear end portion of the swing sorting device 27, and rides on the suction fan 25 on the flow of the sorting air supplied from the tang 26 and the second fan 46. The dust is sucked and discharged out of the machine.

  Next, the processing cylinder will be described. As shown in FIGS. 3 and 4, the processing cylinder 22 is provided in the rear part of the threshing unit 12 and is stored in the processing chamber 41. The processing chamber 41 includes a processing chamber front wall 43 integrally extending from the right side of the processing cylinder cover 29 that covers the processing cylinder 21, and a right side wall behind the processing cylinder chamber front wall 43. A processing cylinder cover 42 that covers the outer half of the processing cylinder 22, a guide member 50 that is on the side of the processing cylinder cover 42 and covers the upper left side of the processing cylinder 22, and a process provided on the rear end side of the threshing unit 12. It is formed so as to be covered with a trunk rear wall (not shown). A drive shaft 22d is provided between the front wall 43 of the processing chamber 41 and the rear wall facing the front wall 43, and the processing cylinder 22 is rotatably supported in the processing chamber 41 in parallel with the handling cylinder 21. The processing chamber 41 opposite to the processing cylinder cover 42 has an inner surface opened to the inside of the threshing section 12, and a processing cylinder network 24 is detachably attached to the opening. Further, on the outer peripheral surface of the rear end portion of the processing cylinder 22, wings 91, 91,. The blades 91, 91,... Rotate integrally with the processing cylinder 22, so that the waste inside the processing cylinder 22 is splashed off by the rotation of the blades 91, 91,. And is guided outside the machine body by a guide plate 61 described later.

As shown in FIGS. 4 and 6, the guide member 50 is formed such that the processing cylinder cover 42 side is high and the handling cylinder 21 side is low in the rear view, and the upper end is fixed to the processing cylinder cover 42 with a bolt or the like. .
A guide rail 50a is provided at the lower part of the guide member 50. The guide rail 50a has a U-shape when viewed from the rear, and is formed by opening the processing cylinder 22 side (right side in the present configuration example). A fixing member 52 for fixing the processing cylinder 24 is mounted on the guide rail 50a. The fixing member 52 is disposed below the guide rail 50a, and a bolt hole 52a is formed in the longitudinal direction of the machine body.

  A guide rail 51 is fixed to the side of the processing cylinder cover 42 in the lower part of the processing chamber 41. The guide rail 51 is U-shaped in a rear view with the processing cylinder 22 side (left side in this configuration example) opened, and is formed long in the front-rear direction of the machine body, and has substantially the same length as the processing cylinder 22. A fixing member 58 for fixing the processing cylinder 24 is disposed below the guide rail 51. The fixing member 58 is formed so as to protrude from the processing cylinder cover 42, and a bolt hole 58a is formed in the longitudinal direction of the machine body. The guide rails 50a and 51 are arranged to face each other at a position where the vertical height is shifted, with one (left) side guide rail 50a being high and the other (right) side guide rail 51 being low and parallel. These are guided when the processing cylinder net 24 is attached and detached, and guide a roller 56 of the processing cylinder net 24 described later.

  Next, the processing cylinder 24 will be described. As shown in FIGS. 5 to 7, the processing cylinder 24 covers the lower periphery of the processing cylinder 22 and is a plate (iron plate in this configuration example) having a large number of holes 44. It is made by molding into an arc shape. It is constituted by a so-called hollow iron plate. The hole 44 is rectangular in this configuration example, but may be polygonal or round. The front / rear length of the processing cylinder 24 is substantially the same as that of the processing cylinder 22, but the front part 24a and the rear part 24b are configured such that the length of the arc in the rear view is different, and the rear side is long. is doing. That is, the rear portion 24b of the processing cylinder 24 is formed in an arc shape along the outer periphery of the lower portion of the processing cylinder 22 from the vicinity of the guide rail 51 to the vicinity of the guide rail 50a in the rear view. Further, horizontal support portions 53 and 53 are extended outward from the left and right end portions of the arc, and the support portions 53 and 53 are fitted into the guide rails 50a and 51, respectively.

  On the other hand, the front portion 24a of the processing cylinder 24 is a portion of the handling cylinder cover 29 (FIGS. 4 and 5) that covers the handling cylinder 21 from the vicinity of the guide rail 51 in a portion overlapping the handling cylinder 21 in a side view. About one third of the outer periphery up to the lower part is formed in an arc shape in rear view along the lower outer periphery of the processing cylinder 22. Further, an end portion on the guide rail 51 side, which is one side of the arc, is extended with a horizontal support portion 53 toward the outside, and the support portion 53 is provided at the rear portion of the processing cylinder 24 and on the guide rail 51. It is configured integrally with the support portion 53 provided on the side. Further, a support portion 54 is extended outwardly on the other side of the arc, and when the processing cylinder net 24 is mounted, the support section 54 is connected to the rear right side of the receiving net 20 that covers the lower side of the handling cylinder 21. In this way, the upper left side of the front part of the processing cylinder 24 that is shorter than the rear part is used as a dust feeding port 23, so that grains that cannot be processed by the handling cylinder 21 are sent to the processing cylinder 22. Further, a projecting portion 24c is provided downward at the boundary between the front portion 24a and the rear portion 24b of the processing cylinder net 24, and the outer peripheral rear surface of the handling cylinder cover 29 when the processing cylinder net 24 is mounted on the protruding portion 24c. So that there is no gap in the processing chamber 41. A front frame 45 is fixed to the front surface of the processing cylinder 24 and a rear frame 47 is fixed to the rear surface. Fixing holes 47 a and 47 a are formed in the front-rear direction on the left and right sides of the rear frame 47. The fixing holes 47a and 47a are provided at positions arranged coaxially with the bolt holes 52a and 58a of the fixing members 52 and 58 when the processing cylinder 24 is mounted. Is fastened and fixed to the fixing members 52 and 58.

  Next, the positional relationship between the processing cylinder 24 and the suction fan 25 will be described. As shown in FIGS. 4, 8, and 9, the suction fan 25 is disposed on the left side of the processing cylinder 22 and behind the handling cylinder 21. More specifically, the suction fan 25 is provided in the vicinity of the upper left side of the rear portion 24 b of the processing cylinder 24. However, since the processing cylinder 22 rotates counterclockwise in the rear view (arrow C in FIG. 9), there are many leaks on the left side of the machine body of the processing cylinder network 24, but the left side of the processing cylinder network 24 and the suction fan 25 Therefore, it is difficult for the grains that have leaked from the processing trunk net 24 to fall down, that is, there is a risk of occurrence of clogging. Therefore, a shielding member is disposed between the suction fan 25 and the processing cylinder 22. In this configuration example, the hole of the proximity portion A of the suction fan 25 on the left side of the rear portion of the processing cylinder 24 is closed. That is, in the side view, the portion of the left processing cylinder 24 where the suction fan 25 and the processing cylinder 24 overlap is not provided with the hole 44, and the portion where the hole of the processing cylinder 24 is closed is covered. The members are configured. 3 and 10, the suction fan 25 is covered with a fan casing 48, and the right side surface (side surface on the processing cylinder side) 48a of the fan casing 48 is used as a shielding member. A shielding plate 68 is disposed in front of the right side surface 48a of the fan casing 48. The shielding plate 68 is disposed between the handling cover 29 and the suction fan 25 in the front-rear and up-down directions, the front end is fixed to the rear surface of the handling cover 29, and the rear end is the right side of the fan casing 48. It arrange | positions so that it may overlap with the front end of the surface 48a by side view, and it isolate | separates between the suction fan 25 and the process drum 22. FIG. By adopting such a configuration, the grain falls down from the holes 44, 44... Of the processing drum net 24 without being influenced by the wind flow of the suction fan 25, and the clogging of the processing drum net 24 is prevented. can do.

  As shown in FIGS. 6 and 7, mounting plates 55 and 55 are extended in the front-rear direction on the lower surfaces of the support portions 53 and 53 on the left and right sides of the processing cylinder 24, respectively. Rollers 56 and 56 are rotatably provided on the front side portions of the mounting plates 55 and 55, respectively. The rollers 56 and 56 are arranged so as to be freely rollable in the longitudinal direction of the machine body along the guide rails 50a and 51, and so that the processing cylinder 24 is slidable in the longitudinal direction. Then, as shown in FIG. 7, pins 57 and 57 are provided at the ends of the processing cylinder 24 in front of the rollers 56 and 56, and the front portions of the pins 57 and 57 protrude forward from the processing cylinder 24. It is protruding. An inclined portion 57a is provided at the front portion of the pin 57, and the inclined portion 57a is formed in a pointed shape so that the front end portion is the thinnest. As shown in FIG. 5, the pins 57 and 57 are attached to the front wall 43 of the processing chamber 41 and the cylinder cover 29 that are machine frames when the processing cylinder 24 is mounted. It fits into the holes 43a and 29a so that the processing cylinder 24 can be fixed.

  Further, as shown in FIG. 6, when the processing cylinder 24 is mounted, the inner lower surfaces of the guide rails 50a and 51 and the upper surfaces of the support portions 53 and 53 are brought into contact with each other to eliminate gaps, so that the grains in the processing chamber 41 can be removed. Prevents grain leakage. At this time, a gap B is formed between the lower ends of the rollers 56 and 56 and the inner upper surfaces of the guide rails 50a and 51. When the processing cylinder 24 is mounted, as shown in FIG. 11A, the rollers 56 and 56 are fitted into the guide rails 50a and 51, and the rollers 56 and 56 are rotated along the lower surfaces of the guide rails 50a and 51. Then, the processing cylinder 24 is slid forward.

  The left and right support portions 53 and 53 and the guide rails 50a and 51 in the processing cylinder network 24 and the guide rails 50a and 51 are configured symmetrically and have substantially the same configuration. The structure of the vicinity of the support part 53 and the guide rail 50a disposed in the guide will be described, and the other side will be omitted. As shown in FIG. 12, when the inclined portion 57a at the tip of the pin 57 of the processing cylinder 24 is inserted and placed in the mounting hole 29a, the guide rail 50a is disposed below the roller 56. The front end is located. That is, the gap 56 is provided between the handling cylinder cover 29 and the front end of the guide rail 50a, and the roller 56 is placed on the guide rail 50a until just before the processing cylinder network 24 is fixed. The distance D is substantially equal to the length from the front end of the support portion 53 to the base portion of the inclined portion 57a of the pin 57. Further, as shown in FIG. 12A, the mounting hole 29a is configured such that the center position E of the mounting hole 29a is higher than the center position F of the pin 57 when the roller 56 is moving on the guide rail 50a. In addition, the tip of the pin 57 is disposed at such a height that it can be fitted into the lower portion of the mounting hole 29a. That is, the center position E of the mounting hole 29a and the center position F of the pin 57 are aligned in the vertical direction, and the lower surface of the tip of the inclined portion 57a is positioned above the lower end of the mounting hole 29a until the pin 57 enters the mounting hole 29a. I am letting. Further, the distance between the center position E of the mounting hole 29a and the center position F of the pin 57 when the processing cylinder 24 is moved (before being fixed) is substantially the same as the gap B. That is, when the processing cylinder 24 is moved, the center position E of the mounting hole 29a is disposed higher than the center position F of the pin 57. Therefore, the upper surface of the support portion of the processing cylinder 24 and the upper lower surface of the guide rail 50a. A gap B is formed between the two. When the processing cylinder 24 is further moved forward, as shown in FIG. 12B, the front end of the pin 57 is fitted into the mounting hole 29a, and the lower surface of the inclined portion 57a of the pin 57 and the lower surface of the mounting hole 29a Move forward while engaging. That is, the processing cylinder 24 moves forward and moves upward, and the front portion of the processing cylinder 24 is supported not by the roller 56 but by the pin 57. When the front surface of the processing cylinder mesh 24 comes into contact with the rear surface of the handling cylinder cover 29, as shown in FIG. 11 (d), the upward movement of the processing cylinder mesh 24 is centered on the mounting hole 29a and the pin 57. Since the distance is between the positions (distance B), the gap between the inner lower surface of the guide rail 50a and the upper surface of the support portion 53 is eliminated.

  With this configuration, as shown in FIG. 11A, when the roller 56 is moving in the guide rail 50a, the roller 56 moves on the lower surface of the guide rail 50a. A gap B is formed between the upper surface of the support portion 53 of 24 and the upper surface of the guide rail 50a. Then, when the processing cylinder 24 is slid forward, the front end of the pin 57 is fitted into the mounting hole 29a and the tip is hooked (FIG. 11B), and further slid forward, FIG. ), The pin 57 engages with the inclined portion 57a of the front portion of the pin 57 and the inner surface of the mounting hole 29a, so that the pin 57 moves forward in the mounting hole 29a, that is, the processing cylinder 24 moves forward and upward. . When the pin 57 is completely inserted into the mounting hole 29a and the processing cylinder net 24 is mounted, as shown in FIG. 11D, between the upper surface of the support portion 53 of the processing cylinder net 24 and the upper surface of the guide rail 50a. In order to prevent the grains in the processing chamber 41 from leaking, there is no gap. Further, the roller 56 is disposed above the gap D so that no load is applied to the processing cylinder 24. An open space is formed below the roller 56 by the gap D, and dust accumulates in the guide rail 50a. Can be prevented from falling into a state where the dust falls from the gap D and accumulates between the front end surface of the guide rail 50a and the roller 56 and cannot be pushed to the end. . Then, as shown in FIGS. 5 and 6, the fixing members 52 and 58 and the rear frame 47 are fastened and fixed in a state where the processing cylinder 24 is mounted.

  As described above, when the front end of the guide rail 50a is arranged with the gap D between the handle cylinder cover 29 and the pin 57 is completely attached to the mounting hole 29a, that is, when the processing cylinder network 24 is fixed. Since the guide rail 50a is not disposed below the roller 56 and the processing cylinder 24 is supported in the shearing direction of the pins 57, the load of the processing cylinder 24 and the pressure during the processing are not applied to the roller 56 during the processing operation. It is possible to eliminate the load on the roller 56 and prevent the roller 56 from being damaged. Further, by providing a gap D between the barrel cover 29 and the front end of the guide rail 50a, dust or the like falls down in front of the guide rail 50a, so that it is difficult for dust to collect in the guide rail 50a, and the roller 56 rotates. It becomes smooth and it becomes easy to attach the processing cylinder 24. Further, since the gap B is formed between the upper surface of the support portion 53 of the processing cylinder net 24 and the upper surface of the guide rail 50a when the processing cylinder net 24 is moved, resistance due to friction can be reduced. It becomes easy to slide.

  Next, another configuration example of the guide rails 50a and 51 will be described. Since the guide rails 50a and 51 are symmetrically configured and have substantially the same configuration, in this configuration example, the guide rail 50a will be described, and the guide rail 51 will be omitted. As shown in FIG. 13, the convex part 60 which rises upwards is formed in the front lower part of the guide rail 50a. The upper surface of the convex portion is disposed at a distance B higher than the upper surface of the guide rail 50a. In addition, slopes 60a and 60a are provided at the front and rear portions of the convex portion 60. The rear slope 60a follows the upper surface of the guide rail 50a, and the roller 56 smoothly moves to the upper surface of the convex portion 60. I can do it. Other configurations of the guide rail and the configuration of the processing cylinder 24 are the same as those described above. With such a configuration, the roller 56 of the processing cylinder 24 is fitted from the rear end of the guide rail 50a, and the roller 56 is moved forward along the upper surface of the guide rail 50a. Then, at the front end portion of the guide rail 50a, the roller 56 is lifted along the slope 60a and moves to the upper surface of the convex portion 60. At this time, since the processing cylinder net 24 is moved upward by the distance B, the upper surface of the support 53 of the processing cylinder net 24 and the upper surface of the guide rail 50a come into contact with each other. And the said pin 57 fits completely in the attachment hole 29a, and the process cylinder 24 is fixed. By adopting such a configuration, the same effect as the above-described guide rail can be obtained, the sliding resistance between the pin 57 and the mounting hole 29a can be reduced, wear can be reduced, and the insertion just before the fixed position can be achieved. Power is reduced.

  Next, the configuration of the tooth handling of the processing cylinder 22 will be described. The screw blades 65 are spirally mounted on the outer periphery of the processing drum 22, and handle teeth 66, 67... Are attached to the screw blades 65 at appropriate intervals. As shown in FIG. 14, attachment holes 65a, 65a,... For attaching the teeth 66, 66,... Are formed in the front portion of the screw blade 65, and the attachment holes 65a, 65a,.・ ・ Hands 66, 66... Are detachably mounted by fixing means such as bolts and nuts. And the tooth-handling 67 * 67 ... of the process drum 22 rear part is being fixed to the screw blade | wing 65 by welding. In addition, the removable teeth 66, 66... Are made symmetrically. If the teeth on one side are worn, the teeth on the opposite side can be turned over and the opposite teeth can be used. Since it is used, the cost can be reduced. With this configuration, it is possible to replace the front teeth 66, 66... With the most severe wear, and by attaching the other teeth 67, 67. Assembly cost and weight can be reduced. Further, instead of welding the tooth handling 67 at the rear part of the processing cylinder 22, a protrusion can be formed on the screw blade 65 to integrally form the teeth 67, 67, By doing so, the number of welding processes can be reduced.

  Next, the conveyance body 80 provided below the processing cylinder 22 will be described. As shown in FIGS. 3, 15 to 17, in the processing chamber 41, a conveying body 80 is provided below the processing cylinder 22 in the front-rear direction so as to overlap in parallel with the processing cylinder 22 in plan view. The processing body 80 receives the processed material falling from the processing cylinder 22 through the processing cylinder network 24, conveys the processed object forward, that is, in the direction opposite to the direction in which the crushed material is fed by the processing cylinder 22, and is shaken. It is configured to discharge onto the moving sorting device 27.

  The conveying body 80 is provided with a funnel-shaped receptacle 82 in the front-rear direction in the lower part of the processing chamber 41 and opened upward. The conveyor 80 is provided with a screw 83 as a spiral body in the receptacle 82 to serve as a conveyor. As in the case of the processing cylinder 22, the conveyance body 80 has a conveyance start end portion disposed below the rear end of the treatment cylinder network 24 in a side view, and a conveyance end portion of the conveyance cylinder 80 of the treatment cylinder 21. It arrange | positions from the rear surface of the cover 29 to the front side of a machine body advancing direction, and it overlaps and arrange | positions partially in the rear part of the handling cylinder 21 and the front-back direction. Further, the branch rachis processing apparatus 10 is disposed in front of the transport body 80 and the processing cylinder 22 and is disposed so as to overlap the handling cylinder 21 in a side view.

  Further, a side wall 84 is fixed on the side of the handling cylinder 21 of the receptacle 82 so that the processed product does not fall from the conveyance body 80 in a portion where the conveyance body 80 and the handling cylinder 21 do not overlap in a side view. At a portion where the body 80 and the handling cylinder 21 overlap, that is, at the conveyance end portion, the handling cylinder 21 side of the receiving rod 82 is opened to form a discharge part 82a. Then, a plate-like blade 86 is fixed to the drive shaft 85 of the screw 83 located in the discharge portion 82a, and the processed material is discharged to the left and right center side of the swing sorting device 27 by the rotation of the blade 86. Yes.

  A guide plate 61 is disposed behind the transport body 80. As shown in FIGS. 15 to 17, the guide plate 61 is disposed below the processing cylinder 22 and above the swing sorting device 27. The front end position of the guide plate 61 is disposed in front of the rear end of the processing cylinder 24, and the rear end position of the guide plate 61 is disposed rearward of the rear end of the swing sorting device 27. Is formed. The guide plate 61 is disposed between the suction fan 25 and the processing cylinder cover 42 so as to be approximately equal to the width of the processing cylinder 22 in the left-right direction, and is fixed by fixing means such as bolts. The guide plate 61 guides the debris and the like inside the processing cylinder 22 to the outside of the machine body. The guide board 61 jumps off the debris inside the processing cylinder 22 by the rotation of the blades 91, 91. It is discharged below 22 and guided to the outside of the machine body by the guide plate 61. In this way, by providing the guide plate 61, the sawdust can be discharged outside the machine body without being mixed with the transport body 80 and the swing sorting device 27.

  Further, as shown in FIG. 16, a gear 77 a is fixed on the drive shaft 85 of the screw 83 in front of the conveyance body 80, and the 77 a meshes with a gear 77 b fixed to one end of the input shaft 88. A pulley 78 a is fixed to the other end of the input shaft 88, and the pulley 78 a and a pulley 78 b fixed to the drive shaft 70 of the processing cylinder 22 are wound around a belt 87. In this way, the drive shaft 85 of the transport body 80 is linked and connected to the drive shaft 70 of the processing cylinder 22 via the pulleys 78a and 78b, the belt 87, and the gears 77a and 77b. Power is transmitted to the drive shaft 85 so that the conveyance body 80 can be driven to rotate in accordance with the rotation of the processing cylinder 22. However, the drive configuration of the transport body 80 is not limited, and may be a chain type or the like, and may be configured to transmit power not only from the processing cylinder 22 but also from a lower sorting device or the like. .

  Here, as shown in FIG. 17, the drive shaft 85 of the transport body 80 is configured to be driven to rotate counterclockwise when the transport body 80 is installed on the left side of the handling cylinder 21 in a front view. Yes. In this way, by rotating the screw 83 and the blade 86 in the counterclockwise direction, the processed material conveyed by the screw 83 is discharged by the blade 86 onto the swing sorting device 27 underslow. Thus, the processed product can be discharged from the discharge portion 82a of the receiving rod 82 without hitting the chaff sheave 33 or the like of the swing sorting device 27. In this configuration example, the processed material is discharged from the discharge portion 82a onto the swing sorting device 27 by underslow, but the screw 83 and the blade 86 are driven to rotate clockwise to discharge the processed material by overslow. It can also be configured to.

  With this configuration, when the processing object leaks from the processing cylinder 22 through the processing cylinder network 24 and falls onto the conveyance body 80, the processing object is rotated at the conveyance end portion of the conveyance body 80 by the rotation of the screw 83. It is transported to a certain discharge part 82a and discharged from the discharge part 82a to the left and right center side of the swing sorting device 27 by the rotation of the blade 86. Therefore, it does not fall directly onto the second conveyor 37 from the processing cylinder 22, and the second thing is dispersed and returned onto the swing sorting device 27, and the sorting width of the swing sorting device 27 is effectively increased. The processed material that has been utilized and transported can be re-sorted to reduce grain loss and increase grain processing.

  In the combine in which the processing cylinder is arranged on the rear side of the handling cylinder, a fan is provided behind the processing cylinder and on the side of the processing cylinder, and the fan and the lower side of the processing cylinder are separated by a shielding member. The grain inside the processing drum falls downward without being influenced by the wind flow of the fan, and the clogging of the processing net can be prevented.

  In addition, since the shielding member is configured by closing a hole of the processing cylinder net in the vicinity of the fan in the processing net that covers the lower part of the processing cylinder, it is not affected by the wind flow of the fan, and Grains fall down from the hole, preventing clogging of the processing cylinder.

  Further, in a combine in which a processing cylinder is disposed on the rear side of the handling cylinder, the lower part of the processing cylinder is covered with a processing cylinder network so that the processing cylinder network can be attached and detached in the front-rear direction. A roller is provided on the machine frame, and the roller can roll back and forth along a guide rail provided on the machine frame, so that only the treatment cylinder can be easily attached and detached, and the treatment cylinder can be easily lightened. It can be slid by force, and the efficiency of the attaching / detaching work at the time of maintenance or the like can be improved.

  In addition, rollers are provided on both the left and right sides of the front part of the processing cylinder, and pins are projected forward from the front surface of the processing cylinder to form attachment holes into which the pins can be inserted into the machine frame. When the pin is fixed, the pin fits into the mounting hole and an open space is formed below the roller. When the processing cylinder is fixed, no guide rail is arranged below the roller, and the processing cylinder in the shearing direction of the pin. Therefore, the load of the processing cylinder is not applied to the roller, the load on the roller is eliminated, and the breakage of the roller can be prevented. In addition, by providing an open space, dust and the like fall below the front of the guide rail, so that dust does not easily accumulate in the guide rail, the rollers rotate smoothly, and the processing cylinder network can be easily attached.

  Further, since the center position of the mounting hole is arranged above the center position of the pin when the roller slides on the guide rail, the upper surface of the processing cylinder network and the guide rail are moved when the processing cylinder network is moved. Since a space is formed between the two, the resistance due to friction can be reduced, and the treatment cylinder can be easily slid.

  Further, in a combine in which a processing cylinder is arranged on the rear side of the handling cylinder and the lower side of the processing cylinder is covered with a processing cylinder net, screw blades are spirally arranged on the outer periphery of the processing cylinder, and from above the screw blades The tooth handling is protruded at an appropriate interval, and the tooth handling arranged on the screw blades at the front of the processing cylinder is detachably fixed and the tooth handling arranged at the rear is fixed by welding. This makes it possible to replace the tooth handling at the front part of the processing cylinder, which causes severe wear, and reduce the number of parts, assembly cost, and weight.

The whole side view of a combine. FIG. The side sectional view of a threshing part and a sorting part similarly. Similarly rear view. The side view of a processing cylinder and a processing cylinder net. Similarly rear view. The side view of a process trunk net. The side view which shows the positional relationship of a process cylinder and a suction fan. Similarly rear view. Plan sectional drawing of a threshing part. The figure which shows the sliding of a process cylinder. A partially enlarged view of the processing cylinder. The figure which shows the other structural example of a guide rail. The side view of a processing cylinder. The side sectional view of a threshing part. The sectional side view of the rear part of a threshing part. The front view of a threshing part.

Explanation of symbols

21 Handling Cylinder 22 Processing Cylinder 24 Processing Cylinder Network 25 Suction Fan 27 Oscillating Sorting Device 44 Hole 50a / 51 Guide Rail 56 Roller 80 Conveying Body 82 Receptacle 83 Screw

Claims (3)

  A threshing portion (12), and a sorting portion (17) for swinging and wind sorting the grains threshed by the threshing portion (12), and the barrel (21) in the threshing portion (12), A combine provided with a dust-feeding port processing cylinder (22) for reprocessing the shredded material of the handling cylinder by communicating with a receiving port at the dust-feeding port; Below the dust-feed port processing cylinder (22), a processed product discharged from the dust-feed port processing cylinder (22) is received, and the processed product is fed in the direction of feeding the crushed material by the dust-feed port processing cylinder (22). Is provided with a transport body (80) that transports in the opposite direction and discharges it onto the swing sorting device (27) of the sorting section (17).   The combine according to claim 1, wherein the transport body (80) has a transport terminal portion for discharging the processed material transported onto the sorting section (17) more than the terminal plate on the terminal portion of the handling cylinder (21). The rotational direction of the helical body that is located on the front side of the machine body traveling direction and that constitutes the transport body (80) is the direction in which the processed material is discharged onto the sorting section (17) from below to above. A featured combine.   The combine according to claim 1 or 2, wherein the combine receives the processed material from the dust feeding port processing cylinder (22) and conveys it on the spiral surface of the rotating spiral body.

Images