JP2010252724A - Normal combine - Google Patents

Abstract

[PROBLEMS] To improve productivity by making it easy to manufacture a front cover for a threshing portion disposed in front of a handling room of a threshing device in a normal combine.
Even if the threshing portion front cover 26 is formed by the front side cover 25 and the upper and front covers bent at approximately 90 degrees, the threshing portion front cover 26 is provided. Since it is formed of resin, it can be molded without taking time and effort for sheet metal processing as in the case where the cover is formed of sheet metal. Further, by forming the front cover 26 of the threshing portion with resin, it is easy to set the cover 26 before the threshing portion to an arbitrary shape according to the shape of the entrance of the handling chamber, the feeder, and the handling cylinder. The threshing portion front cover 26 can be easily formed into a desired shape. Further, since the side portion of the front cover of the threshing portion is a position where a tall crop hits, it is easy to set the shape such that the crop is difficult to thresh and easily flows backward.
[Selection] Figure 7

Description

  The present invention relates to an ordinary combine that threshs the entire harvested crop.

  Conventionally, as an ordinary combine, as shown in Patent Document 1, a harvesting unit 20 that harvests crops is provided in front of a traveling machine body, and crops that are harvested and conveyed behind the harvesting unit 20 are handled in a handling chamber 31. A threshing device (threshing machine 4) comprising a threshing unit 30 for threshing processing and a selection unit 40 for selecting a threshed product located below the threshing unit 30, and a crop recovery unit for recovering the threshed crop ( In a normal combine having a grain bag packing unit 10), a threshing portion front cover that covers a region where a drive system of a front barrel 32 is arranged from the front wall of the handling chamber 31 is provided. It has been known.

JP 2009-34016 A

  Patent Document 1 does not describe the material of the cover before the threshing portion, but conventionally the cover before the threshing portion has been formed of sheet metal. In the case of sheet metal, since the threshing part front cover must be shaped and sheet metal processed in accordance with the shape of the entrance of the handling room and the feeder, it takes time for processing.

  An object of the present invention is to improve productivity by making it easy to produce a cover before a threshing part.

[Configuration of the first invention]
1st invention is equipped with the cutting part which cuts a crop ahead of a traveling machine body, and the threshing part located under the threshing part and the threshing part which carries out the threshing processing in the handling room for the crop which was cut and conveyed behind the cutting part was carried out In a normal combine having a threshing device comprising a sorting unit for sorting processed products and a crop collecting unit for collecting threshing-treated crops, a drive system for a handling cylinder in front of the front wall of the handling chamber is provided. A resin-made threshing portion front cover is provided to cover the disposed area.

[Operation of the first invention]
According to the first invention, even if the front cover of the threshing part is formed by the front side cover and the cover that is bent at approximately 90 degrees and the front part, the front part of the threshing part is Since it is formed of resin, it can be molded without taking time and effort in sheet metal processing, as in the case where the cover is formed of sheet metal, for example. Moreover, by forming the threshing part front cover with resin, it is easy to set the threshing part front cover to any shape that matches the shape of the entrance of the handling chamber, the feeder, and the handling cylinder, The front cover can be easily formed into a desired shape. Further, since the side portion of the front cover of the threshing portion is a position where a tall crop hits, it is easy to set the shape such that the crop is difficult to thresh and easily flows backward.

[Effect of the first invention]
According to the first invention, the threshing portion front cover is made of resin, so that sheet metal processing is unnecessary, and it is possible to set an arbitrary shape according to the shape of the entrance and feeder of the handling chamber and the shape of the handling cylinder. In addition, it can be easily set to an outer shape that is difficult to shed even if a tall crop hits the cover on the lateral side on the front side of the threshing portion.

[Configuration of the second invention]
According to a second aspect of the present invention, in the configuration of the first aspect, the front cover of the threshing portion is covered with the front side cover of the threshing portion that covers the front side of the threshing portion and the front wall of the handling chamber. The threshing part front cover which covers the area | region which has arrange | positioned the drive system of the trunk | drum from the front is comprised.

[Operation and effect of the second invention]
According to the second invention, the threshing part front cover is provided with the threshing part front side cover that covers the front side part and the threshing part front cover that covers the front side of the front wall of the handling room. And the three parts of the front part and the side part are not integrally molded, but the main member may be formed on one side or two sides like the front cover including the side cover and the upper part, so the molded product is large In addition, the molding can be easily performed.

[Configuration of the third invention]
According to a third aspect of the present invention, in the configuration of the first aspect or the second aspect of the present invention, a resin-made sorting unit lateral side cover that covers a drive system disposed outside the lateral outer wall in the left-right direction of the sorting unit is provided.

[Operation and effect of the third invention]
According to the third aspect of the present invention, since the sorting portion side cover is formed of resin, it does not take time for processing unlike the case where the cover is formed of sheet metal. In addition, by forming the sorting unit side cover with resin, it is easy to set the sorting unit side cover to an arbitrary shape, and the sorting unit side cover is easily formed into a desired shape. can do. Furthermore, since the side cover of the sorting unit is at a low position where the crop is easily hit, it is easy to set the shape so that the crop can flow smoothly backward so that the crop does not get caught in the corner of the cover.

[Configuration of the fourth invention]
According to a fourth aspect of the present invention, in the configuration of the third aspect of the present invention, the sorting unit lateral side cover includes a sorting unit front side cover and a sorting unit rear side cover.

[Effects of the fourth invention]
According to the fourth aspect of the present invention, the sorting unit lateral side cover is formed by the two covers of the sorting unit front side cover and the sorting unit rear side cover. Since it can be made difficult to deform even if the thickness of the resin is made thinner than when it is formed with two covers, the cover can be made lighter and easier to handle.

[Configuration of the fifth invention]
According to a fifth aspect of the invention, in the configuration of any one of the first to fourth aspects of the invention, a sheet metal cover is fixed to the outside of the lateral outer wall in the left-right direction of the threshing portion, and is integrated with the sheet metal cover. The lateral wall of the threshing part is configured to be openable and closable around the longitudinal axis.

[Effects of the fifth invention]
According to the fifth aspect, the lateral outer wall of the threshing part can be opened and closed integrally with the cover without removing the cover of the threshing part, so that maintenance and inspection can be performed quickly.
By fixing a sheet metal cover on the lateral outer wall and configuring them integrally, the rigidity of the lateral outer wall of the threshing portion can be increased, so that the opening by the lateral outer wall can be made large.
The lateral outer wall of the threshing part is easy to be subjected to a load, but the cover provided on the outside of the lateral outer wall of the threshing part is made of sheet metal so that the lateral outer wall and cover of the threshing part are stronger than the resin. And can be made difficult to deform.

[Configuration of the sixth invention]
A sixth invention is the configuration of any one of the first to fifth inventions, wherein a top plate made of sheet metal is provided above the threshing portion, and the ceiling of the handling chamber below the top plate is Provided with a dust feed valve that guides the threshing product that is sent in the rotation direction of the barrel by the rotation of the barrel in the direction toward the rear of the barrel axis, and opens and closes the top plate with the dust feed valve around the front and rear axis And it can be fixed freely.

[Effects of the sixth invention]
According to the sixth invention, the handling cylinder and the dust feeding valve can be inspected by opening the top plate. Since the top plate is made of sheet metal, the top plate is durable and difficult to deform even if a considerable impact is continuously applied to the top plate due to the threshing load accompanying the threshing treatment.

It is the whole left side view of a normal type combine. It is a whole top view of a normal combine. It is the whole right side view of a normal type combine. It is a partially longitudinal front view which shows the dust delivery valve arrange | positioned at the upper part of the chamber. It is a top view of the threshing part for showing the whole structure of a dust feed valve. It is a perspective view of the open state of the opening / closing door of a threshing part. It is a left view of a threshing apparatus. It is a perspective view of the surface of the threshing apparatus front side part cover, the sorting part front side cover, and the sorting part back side cover. It is a perspective view of the back of a threshing unit front side part cover, a sorting part front side cover, and a sorting part back side cover. It is a side view of the opening / closing tool which disassembled the engagement hook. It is a partial vertical side view of an opening / closing tool. It is a partially vertical plan view of the opening / closing tool. It is a vertical back view of the state which opened the sorting part rear side cover. It is a vertical back view of the state which closed the sorting part back side cover. (A) is a perspective view of the back surface of a threshing part rear cover, (b) is a perspective view of the surface of a threshing part rear cover. (A) is a partially longitudinal side view of the state after removing the cover after the threshing part, (b) is a partially longitudinal side view of the state where the cover after the threshing part is attached. It is a partially vertical side view which shows the support structure of the rotation part of the opening / closing door of a threshing part. It is a partially vertical rear view which shows the support structure of the rotation part of the opening / closing door of a threshing part. (A) is a partially broken plan view showing the support structure of the rotating part in the closed state of the door of the threshing part, (b) shows the support structure of the rotating part in the open state of the door of the threshing part. It is a partially broken plan view. It is a partially broken top view which shows the opening / closing structure of the cover front-end part of a threshing part. It is a partially broken front view which shows the opening-and-closing structure of the cover front-end part of a threshing part.

  FIG. 1 shows an entire side view of an ordinary combine that harvests rice, wheat, etc., and this ordinary combine is attached to a vehicle body frame 1 that constitutes a traveling machine body made of square pipe steel, etc. 2 and a non-illustrated transmission, etc., and a pair of left and right crawler type traveling devices 3 driven by the power from the engine 2 transmitted via the transmission, etc. A cutting part 4 that cuts the planted culm to be harvested and conveys it to the rear is connected to the front part of the frame 1 so as to be swingable up and down. Threshing is performed on the left half, which is the lateral side of the body frame 1, for the threshing process for the harvested cereal meal from the harvesting unit 4 and for the threshing product obtained by the threshing process. The device 5 is mounted. The right half of the body frame 1 is mounted on the right half, which stores the grain from the threshing device 5 and the bagging device 6 as a crop recovery unit that enables the stored grain to be packed in a bag. The boarding operation unit 7 is formed in the body frame 1 at the front portion of the bagging device 6.

  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 to FIG. 3, with the traveling of the vehicle body, the cutting unit 4 is equipped with a divider 9 equipped on both front and left and right ends of the planted culm and the harvested planted culm and the non-harvesting target. The rotating reel 10 arranged in the upper part of the front part of the planted cereal was scraped toward the rear of the harvested cultivated cereal part distributed by the left and right dividers 9 and equipped 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 removes the harvested cereal culm cut by the cutting mechanism 11 in a predetermined position in the left-right direction. The feeder 13 composed of a conveyor that extends from the predetermined location to the front upper part of the threshing device 5 conveys the harvested cereal meal from the auger 12 toward the threshing device 5. It is configured as follows. Further, based on the swinging operation of the control lever 8 in the front-rear direction, the hydraulic lifting cylinder 14 installed over the vehicle body frame 1 and the feeder 13 is expanded and contracted, whereby the reaping device 5 and the feeder 13 are moved. It is configured so that the cutting height can be adjusted by changing the height position of the cutting mechanism 11 with respect to the planted cereal by the up-and-down swinging of the cutting unit 4 with the connection point as a fulcrum X. .

  Resin covers 10 a and 12 a that cover a belt-type transmission mechanism (not shown) that drives the auger 12 and transmits power from the auger 12 to the rotary reel 10 are provided on the right side of the cutting unit 4.

  The threshing device 5 includes a handling cylinder 17 in the handling chamber 16 and is located below the handling chamber 16 and a threshing unit 15 for threshing the cereals conveyed to the handling chamber 16 by the feeder 13. And a sorting unit 18 for sorting and processing the threshing product. Behind the threshing device 5 is provided a dust cover 19 made of sheet metal that discharges the swarf and dust that have been threshed in the handling chamber 16 and the swarf and the like that have been sorted by the sorting unit 18.

  As shown in FIG. 4 and FIG. 5, a plurality of sheet metal dust feed valves 81 are provided on the inner surface side of the sheet metal top plate 80 of the handling chamber 16 in a direction along the barrel rotation axis. The plurality of dust feed valves 81 are rotatably supported by a pivotal support fitting 82 attached to the top plate 80, and the end portions of the dust feed valves 81 are connected by links 83. The front end dust feed valve 81 connected to the link 83 is supported by a pivotal support fitting 82 and an operation lever 85 is connected to a support shaft 84 connected to the main body 81 a of the dust feed valve 81. The operation lever 85 is formed of an elastic material, and the grip portion 86 side is elastically urged downward. By selectively engaging with the engaging portion 88 of the lever guide 87, the operation lever 85 can be changed in multiple stages (eight stages). It is configured as follows. When changing the angle of the dust feed valve 81, the grip 86 is lifted and the operation lever 85 is rotated and locked at a desired position.

The threshing device 5 is configured as follows so that each part can be inspected.
As shown in FIG. 4, the top plate 80 is freely rotatable around the longitudinal axis Y of the support shaft 90 pivotally attached to a bracket 89 connected to the threshing portion frame 37 on the lateral outer side of the traveling body of the top plate 80. It is supported by.

  The top plate 80 is brought into a closed posture in which the free end portion 80 a is in contact with the threshing portion frame 37, thereby closing the handling chamber upper opening 91 and locking the free end portion 80 a in the closed posture of the top plate 80. The top plate 80 can be closed and fixed in a closed position by screwing with the threshing part frame 37.

  The top plate 80 is swung up and down with respect to the threshing portion frame 37 around the longitudinal axis Y, thereby opening the handling chamber upper opening 91, and inspecting and cleaning the handling cylinder 17 from the handling chamber upper opening 91. The receiving net 93 can be extracted from the handling chamber 16 to the outside through the handling chamber upper opening 91. The receiving net 93 is divided into two divided receiving nets in the circumferential direction of the cylinder and is extracted.

  As shown in FIG. 6, an opening / closing door 66 is formed on the left side of the threshing portion 15, and the opening / closing door 66 is configured to be openable / closable around a vertical axis P <b> 1 at the rear portion of the threshing portion 15. The open / close door 66 includes a sheet metal cover 23 affixed to a sheet metal side wall 22 a that constitutes the door inner wall to be opened and closed among the left side walls of the threshing unit 15, and opens the side wall 22 a to open the threshing device 5. The internal receiving network 93 and the like can be maintained and inspected. As shown in FIG. 7, the front cover 23 of the opening / closing door 66 includes an opening / closing tool 36 for locking and unlocking the opening / closing door 66.

  On the front side of the threshing portion 15, a drive system (not shown) of the handling cylinder 17 and a drive system (not shown) of the conveyor 13 a in the feeder 13 are arranged in front of the front wall 16 a of the handling chamber 16. Yes, before the threshing portion, which is composed of a resin-made threshing portion front side cover 24 that covers the area of the drive system from the front and a resin-side threshing portion front side portion cover 25 that covers the front side portion of the threshing portion 15. A cover 26 is detachably provided. A rear cover 27 made of resin is detachable behind the threshing portion 15.

  Further, on the left outer side of the sorting unit 18 in the lower half part of the threshing device 5, the sorting unit beside the resin sorting unit front side cover 28 and the resin sorting unit rear side cover 29. The side cover 30 is configured to be detachable so as to cover the belt-type transmission mechanism 63 disposed on the outer side of the lateral side wall 31 of the sorting unit 18 and to remove the sorting unit lateral side cover 30 to thereby remove the belt-type transmission mechanism 63. Maintenance inspection can be performed. The threshing portion front side cover 25 and the sorting portion front side cover 28 including the sorting portion front side cover 28 and the sorting portion front side cover 29 are both formed of resin. Since the part cover 30 is more likely to come into contact with the uncut grain pestle and the like, and a large external force is likely to act, the sorting part lateral side cover 30 is harder than the upper threshing part front lateral part cover 25. It is made of resin.

  FIG. 8 is a perspective view of the front side side cover 25 of the threshing part, the front side cover 28 of the sorting part, and the rear side cover 29 of the sorting part 29, and FIG. 9 is a rear perspective view of the same. On the back side of each cover 25, 28, 29, the threshing part frame 37 and the sorting part frame 38, or a U-shaped engaged member made of a round bar attached to the lateral wall 22 of the threshing device 5. A hook-like engagement member 40 that engages with 39 is attached, and an opening 41 for attaching the opening / closing tool 36 is formed on the top of each cover 25, 28, 29.

  10 to 12 are detailed views of the opening / closing tool 36. FIG. The opening / closing tool 36 is a hook type, and includes a metal fitting body 42, a fitting portion 43 that is orthogonal to the fitting main body 42, and is attached to the outer surface of the cover, and a round bar attached to the threshing portion frame 37 or the sorting portion frame 38. A fitting guide 45 for fitting the character-shaped engaged member 44, and a mechanism for swinging about the axis P2 of the support shaft 46 supported by the metal fitting body 42 and engaging / disengaging with respect to the engaged member 44. The hook 47 and the elastic tongue 48 formed on the metal fitting main body 42 that urges the engagement hook 47 in the closing direction. The engaging hook 47 is formed with an operation portion 49 and a restriction piece 50, and presses or pushes up a position above the support shaft 46 of the operation portion 49 (or inserts a finger from below the operation portion 49). Then, the back surface of the operation portion 49 is pulled forward), and the hook portion 51 of the engagement hook 47 is retracted downward in the figure, and the engagement with the engaged piece 44 can be released.

  13 and 14 are longitudinal sectional rear views showing a state in which the sorting unit rear side cover 29 is attached to and detached from the side wall 31 of the sorting unit 18. When attaching the rear side cover 29 of the sorting part, the engaging member 40 is hooked on the front and rear engaged members 39 and the opening / closing tool 36 of the rear side cover 29 of the sorting part or the periphery of the opening / closing tool 36 is pushed. The guide surface 52 of the engagement hook 47 of the opening / closing tool 36 contacts the engaged member 44, and the hook portion 51 is lowered. When the hook portion 51 is lowered, the elastic tongue piece 48 is pressed on the inner surface of the operation portion 49, and the hook portion 51 is lowered against the urging force of the elastic tongue piece 48 in the engagement hook 47. When the hook portion 51 is lowered, the engaged member 44 is fitted into the hook recess 53. When the engaged member 44 is fitted into the hook recess 53, the engaging hook 47 is pushed back by the urging force of the elastic tongue 48 as shown in FIG. The rear rear side cover 29 can be attached to the lateral side wall 31.

  When removing the rear side cover 29 on the rear side of the sorting unit, a finger is inserted from below the operation unit 49 and the back surface of the operation unit 49 is pulled forward. The engagement hook 47 rotates around the axis P2 of the support shaft 46. By moving, the hook portion 51 is lowered, and the engagement with the engaged member 44 can be released. As shown in FIG. 13, in a state where the rear side cover 29 on the rear side of the selection unit is detached from the lateral side wall 31 (a free state of the engagement hook 47 shown in FIG. 11), the elastic tongue 48 has a biasing force against the operation unit 49. Disappeared. From the state of FIG. 11, the engaging hook 47 rotates counterclockwise in the figure. For example, when the lower portion of the operation portion 49 is pressed, the restricting piece 50 acts on the elastic tongue 48. When the urging force to return is applied and the hand is released from the operation unit 49, the original state is restored as shown in FIG. That is, in the disengaged state as shown in FIG. 13, the engaging hook 47 of the operation tool 36 is kept free as shown in FIG. 11, so that the engaging hook 47 is engaged when engaged with the engaged member 44. It is possible to lock without any mistakes.

  The attachment / detachment operation of the sorting unit front side cover 28 and the threshing unit front side cover 25 and the opening / closing operation of the opening / closing door 66 of the threshing unit 15 are the same as those of the sorting unit side cover 29 described above. In addition, about the threshing part front side cover 24, it attaches and removes with a volt | bolt.

  Fig.15 (a) is a perspective view of the surface of the threshing part rear cover 27, FIG.15 (b) is a perspective view of the back surface. A pair of hook-shaped engaging members 55 and a clamped piece 57 in which a bolt fitting recess 56 is formed are formed on the rear surface of the threshing portion rear cover 27, and the threshing portion rear cover 27 is formed of resin.

As shown in FIGS. 16 (a) and 16 (b), a frame frame 58 is provided rearward at the rear end of the threshing portion 15. The frame frame 58 is provided with a screw hole 59 for bolt fastening on the upper end surface, and a U-shaped engaged member 60 made of a round bar is attached to the lower part.
In order to attach the threshing portion rear cover 27 to the frame frame 58, the hook-like engaging member 55 is hooked on the engaged member 60, and the upper plate 27 a of the threshing portion rear cover 27 is placed on the upper frame 58 a of the frame frame 58. The fitting recess 56 is aligned with the screw hole 59 and fastened with a bolt 61.

  The threshing portion front side cover 25, the sorting portion front side cover 28, and the sorting portion rear side cover 29 are belt transmission mechanisms 63 provided on the outer surface side of the side wall 31 (see FIG. 1). ). The belt transmission mechanism 63 receives driving force from the engine 2 (see FIG. 3) located below the driver's seat 7a as well as the barrel 17, as well as a Kara, a first screw conveyor, a second screw conveyor and a sorting drive (not shown). Communicate to the mechanism.

  The threshing portion front side cover 25, the sorting portion front side cover 28, and the sorting portion rear side cover 29 include the covers 25, 28, 29, the side wall 22 of the threshing device 5, and the threshing portion frame 37. Alternatively, the threshing device 5 is supported by the lateral wall 22, the threshing part frame 37, or the sorting part frame 38 through the detaching means provided across the sorting part frame 38. The attaching / detaching means of each cover 25, 28, 29 includes an engaging means 64 comprising an engaged member 39 formed of a U-shaped round bar and a hook-like engaging member 40 engaged therewith, The engagement member 44 is formed by a round bar having a letter shape and a lock means 65 including an opening / closing tool 36 that is hooked on the member 44. The cover 25, 28, 29 in the mounted state is unlocked by swinging the engagement hook 47 to the disengagement side when the lower rear surface of the operation portion 49 of the opening / closing tool 36 is pulled forward. When 28 and 29 are pulled upward, the engagement member 40 is disengaged from the lower engaged member 39, and the covers 25, 28, and 29 can be removed from the side walls.

  Desorption means 67 and pivot means 68 are provided across the rear end portion of the open / close door 66 and the threshing portion frame 37. FIG. 17 is a partially longitudinal side view of the detaching means 67 and the pivot supporting means 68. FIG. 18 is a partially longitudinal rear view of the detaching means 67 and the pivot supporting means 68. As shown in these drawings, the detaching means 67 and the pivot supporting means 68 include a pair of upper and lower pivot shafts 70 provided by attaching a pair of upper and lower support bodies 69 to the threshing portion frame 37, and the cover 23. And a pair of upper and lower connection holes 72 provided by connecting a pair of upper and lower connection plates 71 to the inner surface side of the.

  The pair of upper and lower connection plates 71 are externally fitted to the pair of upper and lower pivot shafts 70 from above by the connection holes 72, and a pair of upper and lower supports 69 receive and support the connection plate 71 from below by the upper surfaces thereof. By entering the state, the detaching means 67 connects the cover 23 to the threshing part frame 37 to connect the lateral outer wall 22a to the threshing part frame 37, and the pivot support means 68 connects the lateral outer wall 22a to the pair of upper and lower sides. It is an axis provided in the pivot shaft 70 and is pivotally supported so as to swing and open together with the cover 23 around the longitudinal axis P1 located on the rear end side of the lateral outer wall 22a.

  The detaching means 67 is configured to release the connection of the door 66 to the threshing part frame 37 by removing the pair of upper and lower connection plates 71 from the pivot shaft 70 and thereby to the threshing part frame 37 of the door 66. Unlink.

  FIGS. 19A and 20 are partially broken plan views of the threshing portion 15 in the closed state of the open / close door 66, and FIG. 21 is a partially broken front view of the threshing portion 15 in the closed state. As shown in these drawings, the open / close door 66 is connected to the threshing portion frame 37 by the detaching means 67 and is in a closed state in which the threshing portion front side cover 25 in the attached state is aligned with the traveling body front-rear direction. . Then, the lateral outer wall 22a closes the handling chamber lateral opening 73 located on the lateral wall 22 of the threshing portion 15. At this time, the lateral outer wall 22a can be fixed in the closed state by fixing the open / close door 66 in the closed state by the locking means 74 provided across the front end portion of the cover 23 and the lateral side wall 22 of the threshing portion 15.

FIG. 20 is a plan view of the locking means 74. FIG. 21 is a front view of the locking means 74. As shown in these drawings, the locking means 74 is provided at the front end of the cover 23 of the open / close door 66 so as to be engaged with and disengaged from the lock rod 75 fixed to the outer surface of the lateral side wall 22. The opening / closing tool 36 is provided. The opening / closing tool 36 has the same structure as the opening / closing tool 36 provided on the front side cover 28 of the sorting unit.
Instead of the lock means 74, a configuration in which the open / close door 66 is closed and fixed by a connecting bolt may be employed.

  FIG. 19B is a partially broken plan view of the open / close door 66 in the opened state. As shown in this figure, the open / close door 66 in a state in which the locking means 74 is switched to the unlocked state is swingably opened around the longitudinal axis P1 to the lateral side of the traveling machine body. Then, the open / close door 66 swings to the lateral side of the traveling machine body and is in a swinging open state. A state in which the opening / closing door 66 is opened by removing one end of the lock rod 75 that has been engaged and held by the connecting plate 71 in a state where the opening / closing door 66 is open and engaging with the hole 69a formed in the support body 69. Can be held in position. Alternatively, the pair of upper and lower connecting plates 71 are detached from the pivot shaft 70 by lifting the opening / closing door 66 with respect to the support body 69, and the connection of the cover 23 to the threshing portion frame 37 by the detaching means 67 is released. Then, the open / close door 66 is detached from the threshing part frame 37 and is opened. Then, in any case, the handling chamber lateral opening 73 is opened, and the inside of the threshing portion 15 can be inspected and cleaned from the lateral side outside the machine body with the receiving net 93 attached to the handling chamber 16.

[Another embodiment]
(1) In the above embodiment, the threshing portion front cover 24 and the threshing portion front side cover 25, the threshing portion front cover 26, the sorting portion front side cover 28, and the sorting portion rear side cover 29 are provided. Although the sorting unit lateral side cover 30 is formed of resin, the sorting unit lateral side cover 30 may be formed of sheet metal.

(2) Of the threshing part front cover 26, the threshing part front cover 24 may be formed of sheet metal, and only the threshing part front side cover 25 may be formed of resin.

(3) The threshing part front cover 24 is formed of sheet metal, and the threshing part front side cover 25, the sorting part front side cover 28, and the sorting part rear side cover 29 located on the side part of the threshing device 5. Only these may be formed of resin.

  The present invention can be used not only as an ordinary combine harvester for harvesting rice and wheat but also as an ordinary combine harvester for harvesting straw, straw and beans.

DESCRIPTION OF SYMBOLS 1 Traveling machine body 4 Mowing part 5 Threshing apparatus 6 Crop collecting part 15 Threshing part 16 Handling room 17 Handling cylinder 18 Sorting part 22a Lateral outer wall of threshing part 23 Cover 24 Threshing part front cover 25 Threshing part front side cover 26 Front of threshing part Cover 28 Sorting part front side cover 29 Sorting part rear side cover 30 Sorting part side cover 31 Sorting part lateral outer wall 80 Top plate 81 Dust valve P1 Vertical axis Y Longitudinal axis

Claims (6)

A trimming unit that harvests crops in front of the traveling machine body is provided, and a threshing unit that threshs the crops that have been harvested and conveyed behind the harvesting unit in a handling room and a threshing processed product that is positioned below the threshing unit are selected. In a normal combine having a threshing device composed of a sorting unit and a crop recovery unit that recovers the threshed crop,
A normal combine having a resin threshing portion front cover that covers a region where a drive system of a handling cylinder ahead of the front wall of the handling chamber is disposed.   The threshing part front cover, the threshing part front side cover that covers the front side of the threshing part, and the area where the drive system of the handling cylinder ahead of the front wall of the handling room is arranged The ordinary combine according to claim 1, comprising a threshing portion front cover that covers from the front.   3. The ordinary combine according to claim 1, further comprising a resin-made sorting unit side cover that covers a drive system disposed outside a lateral outer wall in the left-right direction of the sorting unit.   4. The ordinary combine according to claim 3, wherein the sorting unit lateral side cover comprises a sorting unit front side cover and a sorting unit rear side cover.   A sheet metal cover is fixed to the outer side of the lateral outer wall in the left-right direction of the threshing part, and the lateral outer wall of the threshing part is configured to be openable and closable around a vertical axis integrally with the sheet metal cover. The common combine as described in any one of 1-4.   A top plate made of sheet metal is provided on the upper side of the threshing portion, and a threshing processed product sent in the direction of rotation of the barrel by the rotation of the barrel is placed behind the barrel axis on the ceiling of the handling chamber below the top plate. The dust supply valve which guides to the direction which goes to the direction is provided, and the top plate to which the dust supply valve is attached is configured to be openable and closable and fixed around the longitudinal axis. Type combine.

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