JP2011239737A - Combined harvester and thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combined harvester and thresher which can perform maintenance work without mounting and dismounting a cover member.SOLUTION: The combined harvester and thresher forms: a surrounding space A2 surrounding a longitudinal feeding screw conveyor 135 by coming a leading end part of a first cover member 145 and the leading end part of a second cover member 153 close to each other when a stalk shredding device 8 is in a normal attitude; and a communicating space communicating to the longitudinal feeding screw conveyor 135 from between a threshing device 6 and the stalk shredding device 8 when the stalk shredding device 8 is in a maintenance attitude.

Description

  According to the present invention, a glen tank and a threshing device are allocated to the left and right of the rear part of the machine body frame, and a discharge auger for discharging grains stored in the glen tank to the outside is disposed at the rear of the glen tank. The present invention relates to a combine that is provided so as to be able to rotate around and is provided with a stalk and shredding device that can shred the stalk after threshing by the threshing device.

  Generally, as this type of combine, as disclosed in Patent Document 1, the gear of the motor meshes with a ring gear fixed to the vertical feed screw conveyor of the discharge auger, and the discharge auger is rotated by driving the motor. There is something to drive. At this time, in order to protect the vertical feed screw conveyor, the motor, the ring gear, and the like, there is a type in which a cover member is attached to the rear surface portion of the Glen tank so as to surround the vertical feed screw conveyor and the motor.

JP 2009-82011 A

  In a conventional combine, for example, in order to perform maintenance work on an auger drive unit such as a motor or ring gear, it is necessary to remove the cover member from the rear surface part of the Glen tank and attach the cover member to the rear surface part of the Glen tank after the maintenance work. For example, maintenance work has become complicated.

  An object of the present invention is to provide a combine that can perform maintenance work without attaching or removing a cover member.

In the combine of the present invention, a grain tank and a threshing device are arranged on the left and right of the rear part of the body frame, and a discharge auger that discharges grains stored in the grain tank to the outside is provided longitudinally behind the grain tank. It is provided so as to be able to rotate around an axis, and behind the threshing device, a pedicle shredding device capable of shredding the stalk after being threshed by the threshing device,
The first characteristic configuration is that a ring gear meshing with a pinion gear of a motor fixed to the machine frame is fixed to a vertical feed screw conveyor of the discharge auger, and the discharge auger is driven around a vertical axis by driving the motor. It is configured to be able to rotate, and the pedicle shredder is rotated around the vertical axis on the discharge auger side in the stem and shredder, and the normal posture close to the threshing device, and the threshing device It is possible to change the posture to a maintenance posture to be separated, a first cover member that covers the outside of the vertical feed screw conveyor is provided at the rear part of the Glen tank, and the outside of the vertical feed screw conveyor is provided to the stem cutting device. A second cover member is provided to cover the distal end portion of the first cover member and the distal end of the second cover member in a plan view when the pedicle shredding device is in the normal posture. And forming a surrounding space surrounding the vertical feed screw conveyor on the inner side of the first cover member, the second cover member, the Glen tank, and the stalk chopping device, When the stalk chopping device is in the maintenance posture, it is configured to form a communication space communicating with the longitudinal feed screw conveyor from between the threshing device and the stalk chopping device. .

  When performing normal work, the pedicle shredder is positioned in a normal posture. At this time, since the surrounding space surrounding the vertical feed screw conveyor is formed on the inner side of the first cover member, the second cover member, the Glen tank, and the stalk chopping device, the vertical feed screw conveyor, the motor, and the ring gear are formed. Etc. can be well protected. Further, it is possible to prevent straw scraps and the like floating at the rear of the machine body from adhering to the ring gear and the pinion gear.

  When performing maintenance work, the pedicle shredder is rotated backward about the vertical axis with respect to the aircraft. At this time, the stalk chopping device is located in a maintenance posture that is separated from the threshing device, and a communication space is formed that communicates with the vertical feed screw conveyor from between the threshing device and the stalk chopping device. A person can perform maintenance work such as inspection and grease up of the motor, ring gear, and pinion gear from the communication space. In this case, since the second cover member provided in the pedicle shredder moves together with the pedicle shredder, the first cover member can be easily operated simply by changing the posture of the pedicle shredder to the maintenance posture. Maintenance work can be performed without attaching or removing the second cover member.

  According to a second characteristic configuration of the present invention, a partition plate that partitions the stem and shredder device and the discharge auger is attached to a portion on the discharge auger side of the stem and shredder device, and the second cover is attached to the partition plate. The member is attached.

  By attaching the second cover member to the partition plate that partitions the pedicle shredding device and the discharge auger, the partition plate can be used effectively, for example, a bracket for attaching the second cover member can be made unnecessary. The mounting structure of the cover member can be simplified.

It is a side view which shows a combine. It is a top view which shows a combine. It is sectional drawing which shows a threshing apparatus and a stem chopping apparatus. It is a side view which shows the state which attached the lid | cover to the opening for an inspection. It is a VV arrow sectional view of Drawing 4. It is VI-VI arrow sectional drawing of FIG. It is VII-VII arrow sectional drawing of FIG. It is a longitudinal cross-sectional view which shows a 2nd reduction | restoration mechanism. It is a longitudinal cross-sectional view which shows a single grain processing part. It is a rear view which shows a Glen tank and a stalk chopping apparatus. It is a rear view which shows a Glen tank and a stalk chopping apparatus, and shows the state which removed the 1st cover member from the Glen tank. It is a disassembled perspective view which shows a Glen tank and a stem chopping apparatus. It is a top view which shows the Glen tank and pedicle shredding device with a stalk chopping device in a normal posture. It is a top view which shows the glen tank and pedicle shredding apparatus in a maintenance attitude | position with a stalk chopping apparatus. It is a top view which shows the 1st and 2nd cover member.

〔overall structure〕
As shown in FIGS. 1 and 2, this self-removable combine includes an airframe frame 2 provided with a crawler traveling device 1, a cutting part 3 connected to a front portion of the airframe frame 2 so as to be movable up and down, and an airframe frame. 2 on the right front part of the vehicle body 2, the Glen tank 5 arranged on the right rear part of the fuselage frame 2, the threshing device 6 arranged on the left rear part of the fuselage frame 2, and behind the Glen tank 5 The grain discharge part 7 arrange | positioned and the stalk chopping apparatus 8 arrange | positioned at the back of the threshing apparatus 6 are provided.

(Glentank)
As shown in FIGS. 1 and 2, the Glen tank 5 is disposed on the right rear portion of the body frame 2. The Glen tank 5 stores the grain that has been threshed by the threshing device 6, and includes a bottom surface portion 5a, a front surface portion 5b, a rear surface portion 5c, a right surface portion 5d, a left surface portion 5e, and a ceiling. And a surface portion 5f.

(Threshing device)
As shown in FIG. 3, the threshing device 6 includes a threshing feed chain 19 provided on the left outer side, a handling chamber 11 formed in the upper part, a handling cylinder 12 provided in the handling chamber 11, and its handling. A top plate 13 that covers the upper side of the cylinder 12 from above, a receiving net 14 that covers the lower side of the handling cylinder 12 from below, an oscillation sorting mechanism 15 provided below the receiving net 14, and its oscillation sorting A tang 16 provided below the mechanism 15, a first recovery part 17 formed below the middle part of the swing sorting mechanism 15, and a second recovery part 18 formed below the rear part of the swing sorting mechanism 15. And.

(Handling room)
As shown in FIG. 3, the handling chamber 11 is defined by a front wall, a rear wall, right and left side walls, a receiving net 14, and a top plate 13. A supply port 20 is formed below the front end portion of the handling chamber 11, and the harvested cereal meal is supplied to the handling chamber 11 through the supply port 20.

(Threshing feed chain)
As shown in FIG. 3, the threshing feed chain 19 sandwiches the stock side of the harvested cereal meal and conveys it backward. Thereby, the tip side of the harvested cereal rice cake is inserted between the handling cylinder 12 and the receiving net 14.

(Cylinder)
As shown in FIGS. 3 to 7, the handling cylinder 12 is rotatably supported in the handling chamber 11, and the handling cylinder 12 is configured to be rotatable by the power of an engine (not shown). Thereby, the harvested cereal between the handling cylinder 12 and the receiving net 14 is threshed.

  Specifically, the treatment cylinder 12 is a cylindrical treatment drum 23 made of a sheet metal having a treatment tooth 22 attached to the outer peripheral portion 21, and a front-rear direction fixed to the treatment drum 23 so as to be integrally rotatable. And a support shaft 24. An inspection opening 25 is formed at an intermediate portion in the front-rear direction of the outer peripheral portion 21 of the handling drum 23. A lid 26 for closing the inspection opening 25 is connected by a bolt 34, and first and second protective members 35 and 36 made of carbon tool steel for preventing wear of the head of the bolt 34 are attached.

  The lid 26 includes a rectangular lid portion 27 to which the tooth handling 22 is attached, and a frame-shaped connecting portion 28 that overlaps the peripheral edge portion of the inspection opening 25. One large-diameter hole 29 is formed in each short side portion of the connecting portion 28 of the lid 26, and three large-diameter holes are formed in each long side portion of the connecting portion 28 of the lid 26. ing. One large-diameter hole 32 and one small-diameter hole 44 corresponding to one large-diameter hole 29 are formed in the short side portion of the peripheral edge of the inspection opening 25, and In the long side portion, three large-diameter holes corresponding to the three large-diameter holes are formed.

  The mounting position of the bolt 34 that connects the short side portion on the right side of FIG. 4 in the connecting portion 28 of the lid 26 and the short side portion on the right side of FIG. 4 in the peripheral portion of the inspection opening 25 is the short side portion. The mounting position of the bolt 34 that connects the short side portion on the left side of FIG. 4 in the connecting portion 28 of the lid 26 and the short side portion on the left side of FIG. , And a position below the center of the short side portion. In this way, by shifting the mounting positions of the bolts 34 in the rotational direction of the handling cylinder 12, it is possible to prevent the lid 26 from being erroneously attached upside down when the lid 26 is attached to the inspection opening 25. .

(Protective member)
As shown in FIGS. 3 to 7, the first protection member 35 includes an attachment portion 38 attached to the outer peripheral portion 21 and having three large-diameter holes, and a downstream of the attachment barrel 38 in the rotation direction of the handling cylinder 12. And a projecting portion 39 extending radially outward from the end portion on the side, and is formed in a long shape having a substantially L-shaped cross section. The second protective member 36 is attached to the outer peripheral portion 21 and has an attachment portion 41 having one large-diameter hole 40, and a radially outward side from an end portion of the attachment portion 41 on the downstream side in the rotation direction of the handling cylinder 12. And a tongue piece 43 that extends radially inward from an end of the attachment portion 41 on the upstream side in the rotation direction of the handle cylinder 12.

  The surface of the connecting portion 28 of the lid 26 is brought into contact with the back surface of the peripheral portion of the inspection opening 25, and the back surface of the mounting portion 38 of the first protective member 35 is brought into contact with the surface of the long side portion in the peripheral portion of the inspection opening 25. In this state, the bolt 34 is connected through each large-diameter hole. At this time, since there are a plurality of attachment points of the bolts 34, the attachment position of the first protection member 35 does not shift even when the first protection member 35 hits the harvested cereal.

  The surface of the connecting portion 28 of the lid 26 is brought into contact with the back surface of the peripheral portion of the inspection opening 25, and the back surface of the mounting portion 41 of the second protective member 36 is brought into contact with the surface of the short side portion in the peripheral portion of the inspection opening 25. The bolt 34 is connected through the large diameter holes 29, 32, and 40 in a state where the tongue piece portion 43 of the second protective member 36 is engaged with the small diameter hole 44. At this time, even if the second protective member 36 hits the harvested cereal and the second protective member 36 tries to rotate around the bolt 34, the second protective member 36 engages with the tongue piece portion 43 of the second protective member 36 and the small-diameter hole 44. Since the rotation of the protection member 36 is prevented, the mounting position of the second protection member 36 does not shift.

  That is, by forming the rotation-preventing tongue piece portion 43 on the second protective member 36, the rotation of the second protective member 36 can be prevented even if there are not a plurality of bolt 34 attachment locations. Therefore, in addition to reducing the cost and reducing the number of parts, for example, only one bolt 34 is required, it is possible to simplify the maintenance work, such as mounting the bolt 34 only once. Further, since the small-diameter hole 44 is closed by the short side portion of the connecting portion 28 of the lid 26, sawdust generated in the threshing process enters the inside of the handling cylinder 12 through the small-diameter hole 44. Can be prevented.

(Receiving network)
As shown in FIG. 3, the receiving net 14 receives the harvested cereal meal supplied to the handling chamber 11. Thereby, the single-grained grain obtained by the threshing process, the grain with a branch raft, the sawdust generated by the threshing process, etc. are leaked toward the lower swing sorting mechanism 15. At the rear of the receiving net 14 (the end on the lower side of the threshing process direction of the threshing device 6), a slag opening 51 is formed.

(Oscillating sorting mechanism)
As shown in FIG. 3, the swing sorting mechanism 15 has a first grain pan 54 and a second grain pan for rough sorting placed on an upper portion of a sheave case 53 that is driven to swing back and forth by a cam-type swing mechanism 52. 55 and Strollac 56 are arranged side by side in the front-rear direction, a chaff sheave 57 is provided in the middle of the sheave case 53, and a fine sieve 58 for fine sorting is provided at the bottom of the sheave case 53. is there.

  The oscillating sorting mechanism 15 sorts a single grain, cereal grain, and sawdust from the receiving net 14 into a first grain pan 54, a second grain pan 55, a chaff sheave 57, a straw. While being received by the rack 56 and transported backward, a coarse sorting process by sieve sorting is performed. In addition, a sorting process such as a single grain and a grain with a branch raft leaked from the chaff sheave 57 is received by the Glen sheave 58 and conveyed backward, and a fine sorting process by sieve sorting is performed. As a result, the sorted product is sorted into a single grain as the first item, a mixture such as a grain with branch branch as the second item and sawdust, and dust such as sawdust.

(Tang Dynasty)
As shown in FIG. 3, the tang 16 is fixed to a lateral support shaft 61 that is rotatably supported at the lower part of the threshing device 6. The tang 16 has a blade portion 62 attached to the support shaft 61. The support shaft 61 is rotationally driven by the power of the engine, and the blade portion 62 is rotationally driven around the support shaft 61 to generate a sorting wind. The sorting wind acts on the sorting processing product leaked from the receiving network 14 or the sorting processing product sorted by the swing sorting mechanism 15 to perform the wind sorting process. Blow off low-specific gravity sawdust etc. from the sorted product. As a result, soot and the like are transported to the dust exhaust fan 63 and the dust exhaust port 64 and discharged outside the apparatus.

(No. 1 recovery department)
As shown in FIG. 3, the first recovery portion 17 includes a substantially V-shaped recess 65 and a laterally oriented first screw 66 disposed at the bottom of the recess 65. The cereal grains leaked from the grain sieve 58 of the swing sorting mechanism 15 are received by the concave portion 65, and the received first product is connected to the right end portion of the first screw 66 by driving the first screw 66. It is conveyed to the first lifting screw conveyor 67. The first item is supplied to the Glen tank 5 by driving the first lifting screw conveyor 67.

(No. 2 recovery department)
As shown in FIGS. 3, 8, and 9, the second recovery portion 18 includes a substantially V-shaped recess 71 and a laterally-facing second screw 72 disposed at the bottom of the recess 71. . Due to the recess 71, the mixture leaked from the grain sieve 58 of the oscillating sorting mechanism 15 and the mixture such as grains with stalks and swarf that flowed down from the rear end thereof, and the Strollac 56 of the oscillating sorting mechanism 15. Mixtures such as cereal grains and sawdust are received, and the received second product is conveyed to the second reduction mechanism 73 connected to the right end of the second screw 72 by driving the second screw 72. The The second thing conveyed by the second reduction mechanism 73 is reduced to the swing sorting mechanism 15.

(No. 2 reduction mechanism)
As shown in FIGS. 8 and 9, the second reduction mechanism 73 includes a single granulation processing unit 74 that performs a single granulation process on the conveyed second product, and a second product after the single granulation process. And a second lifting screw conveyor 75 for returning to the swing sorting mechanism 15.

(Single grain processing section)
As shown in FIGS. 8 and 9, the single grain processing section 74 includes a disk-shaped first mounting member 70 fixed to the right end portion of the screw shaft 72 a of the second screw 72, and the first mounting member. A plurality of rectangular plate-like second attachment members 69 fixed to the left side surface of 70 and the screw shaft 72a of the second screw 72 by welding in a longitudinal direction of the screw shaft 72a, and the plurality of second attachment members 69. The first comb teeth member 76 connected to the upstream surface in the rotational direction of each of the screw shafts 72a by a bolt 94, and the bolts on the downstream surface in the rotational direction of the screw shafts 72a of the plurality of second mounting members 69. 94, a wear prevention cover 93 connected to each other, a substantially cylindrical case 84 that houses the first and second mounting members 69 and 70, and the first comb tooth member 76, and a part of the outer peripheral surface of the case 84. A second comb teeth members 77 of a plurality of triangular plate shape protruding from the curved cover portion 68 radially inwardly to configure, and a.

  The first comb-tooth member 76 includes a main body portion 76a and a plurality of comb-tooth portions 76b fixed to a surface of the main body portion 76a on the upstream side in the rotation direction in a state of being aligned in the longitudinal direction of the screw shaft 72a. The main body portion 76a is inclined from the screw shaft 72a to the radially outer side of the case 84 in a rectangular plate shape, and the base end portion is inclined from the radial direction of the case 84 to the upstream side in the rotational direction of the screw shaft 72a. And a rectangular plate-like tip portion extending in the direction, and is formed in a square shape in the longitudinal direction of the screw shaft 72a. A rectangular notch portion is formed at a position on the left side from the center of the distal end portion of the main body portion 76a.

  The comb tooth portion 76b at the left end extends from the screw shaft 72a along the radially outer side of the screw shaft 72a. The tip end portion of the left comb tooth portion 76b is along the left edge of the cutout portion of the main body portion 76a.

  The left comb tooth 76b from the center is a fold extending from the screw shaft 72a along the radially outward side of the screw shaft 72a and along the direction inclined leftward from the distal end of the base end portion. A bent portion and a tip portion extending from the tip of the bent portion along the radially outer side of the screw shaft 72a. The tip portion of the comb tooth portion 76b located on the left side from the center protrudes from the cutout portion of the main body portion 76a. Thereby, the comb tooth portion 76b located on the left side from the center is configured to dodge the mounting position of the bolt 94.

  The right comb tooth 76b from the center extends from the screw shaft 72a along the radially outer side of the screw shaft 72a. The proximal end portion of the comb tooth portion 76b located on the right side from the center is fixed to the proximal end portion of the comb tooth portion 76b located on the left side from the center. The tip portion of the comb tooth portion 76b located on the right side from the center protrudes from the cutout portion of the main body portion 76a.

  The right comb tooth 76b extends from the screw shaft 72a along the radially outer side of the screw shaft 72a. The proximal end portion of the right comb tooth portion 76b is upstream of the screw shaft 72a and the screw shaft 72a of the second mounting member 69 to which the first comb tooth member 76 constituting the comb tooth portion 76b is connected. The second mounting member 69 adjacent to the side is close to the surface on the downstream side in the rotational direction of the screw shaft 72a. The distal end portion of the right comb tooth portion 76b is along the left edge of the cutout portion of the main body portion 76a.

  The front end portion of the left comb tooth portion 76b, the front end portion of the left comb tooth portion 76b from the center, the front end portion of the right comb tooth portion 76b from the center, and the front end portion of the right end comb tooth portion 76b are the length of the screw shaft 72a. It is configured to be arranged at equal intervals along the direction.

  The second comb-tooth members 77 are arranged at equal intervals along the longitudinal direction of the screw shaft 72a. The position of the second comb tooth member 77 is shifted in the rotation direction of the screw shaft 72a.

(Second lifting screw conveyor)
As shown in FIGS. 8 and 9, the second lifting screw conveyor 75 includes a cylindrical outer case 85 and a vertical feed screw 86 disposed inside the outer case 85. The outer case 85 communicates with the case 84. A lateral transmission shaft 79 is linked to a lower end portion of the screw shaft 86 a of the vertical feed screw 86 via a bevel gear type transmission mechanism 78. A driven sprocket 80 is fixed to the tip of the lateral transmission shaft 79.

  The right end portion of the screw shaft 72 a of the second screw 72 protrudes from the case 84 to the right side. A drive sprocket 81 is fixed to the right end portion of the screw shaft 72 a of the second screw 72. A chain 82 is wound around the sprockets 80 and 81. A cylindrical cover 83 that covers the sprockets 80 and 81 and the chain 82 is provided across the lower end of the second lifting screw conveyor 75 and the side surface of the case 84.

  A discharge portion 91 having a discharge port 91 a communicating with the swing sorting mechanism 15 is attached to the upper end portion of the second lifting screw conveyor 75. A rectangular plate-shaped scraping blade 92 is fixed to the upper end portion of the screw shaft 86a of the longitudinal feed screw 86 of the second lifting screw conveyor 75 by welding. A wear prevention cover 93 is connected to the surface of the scraping blade 92 on the downstream side in the rotational direction of the screw shaft 86 a by a bolt 95 in a state of protruding from the tip portion of the scraping blade 92.

(Abrasion prevention cover)
As shown in FIGS. 8 and 9, the wear prevention cover 93 has a rectangular plate shape, and one of the four corners is cut away to form an inclined portion 93a. Two first holes 93b are formed in the long side direction on the long side portion side where the inclined portion 93a does not exist in the wear prevention cover 93, and two first holes 93b in the long side direction are formed on the center side of the wear prevention cover 93. Two holes 93c are formed. The interval between the first holes 93b is narrower than the interval between the second holes 93c. The diameter of the first hole 93b is smaller than the diameter of the second hole 93c.

  When attaching the wear prevention cover 93 to the scraping blade 92, the bolt 95 is attached to the wear prevention cover 93 in a state where the wear prevention cover 93 is pressed against the surface of the scraping blade 92 on the downstream side in the rotational direction of the screw shaft 86 a. The first hole 93b and the scraping blade 92 are connected through the holes. Thereby, the wear of the scraping blade 92 can be prevented by the wear prevention cover 93. The second hole 93 c is closed by the scraping blade 92.

  When the wear prevention cover 93 and the first comb-tooth member 76 are attached to the second attachment member 69, the wear-prevention cover 93 is provided on the surface on the downstream side in the rotation direction of the screw shaft 72a of the main body portion 76a of the first comb-tooth member 76. In the state where the first comb tooth member 76 is pressed against the surface of the main body portion 76a on the upstream side in the rotation direction of the screw shaft 72a, the bolt 94 is attached to the second hole 93c of the wear prevention cover 93 and the second mounting member 69. And the hole of the main body portion 76a of the first comb-tooth member 76. Thereby, the wear of the second mounting member 69 can be prevented by the wear prevention cover 93.

  By attaching the same wear prevention cover 93 to the scraping blade 92, the second attachment member 69, and the first comb member 76, it is possible to share parts and reduce the number of parts.

  A weld bead swelled in a band shape is formed at the welded portion between the second mounting member 69 and the screw shaft 72a of the second screw 72 and the welded portion between the second mounting member 69 and the first mounting member 70. In particular, a large weld bead is formed at the welded portion between the second mounting member 69 and the screw shaft 72a of the second screw 72 and the welded portion between the second mounting member 69 and the first mounting member 70. easy. Therefore, the wear prevention cover 93 is attached to the second mounting member 69 so that the inclined portion 93a of the wear prevention cover 93 faces the mating portion, and the wear prevention cover 93 does not interfere with the weld bead formed on the mating portion. It is like that.

(Operation of No. 2 reduction mechanism)
When the engine is driven, the second screw 72 is rotated, the first comb-tooth member 76 is rotated, the transverse transmission shaft 79 is rotated through the chain 82 and the sprockets 80 and 81, and the longitudinal direction is transmitted through the bevel gear type transmission mechanism 78. The feed screw 86 rotates.

  At this time, the second object conveyed by the second screw 72 is supplied to the case 84. When the second comb-tooth member 77 passes between the comb-tooth portions 76b of the first comb-tooth member 76, the single-grain process for removing the branch rachis from the branch rachis grains among the second item in the case 84 Is done. The second product after the single graining process is conveyed upward by the vertical feed second lifting screw conveyor 75. The wear prevention cover 93 rotates around the screw shaft 86a, and the second thing is returned to the swing sorting mechanism 15 through the discharge port 91a by the wear prevention cover 93.

(Stalk chopping device)
As shown in FIGS. 1 to 3 and FIGS. 10 to 16, at the rear part of the threshing device 6, the stalk transporting device 101 that inherits and transports the stalk transported by the threshing feed chain 19, and its A pedicle chopping device 8 is provided for chopping the pedicles conveyed by the pedicle conveying device 101 and releasing it to the outside of the apparatus. Above the stalk chopping device 8, a waste wall cover 103 that covers the stalk transport device 101 is provided.

  The stalk chopping device 8 includes a cutter case 105, a stalk supply unit 106 and a stalk chopping unit 107 that are rotatably mounted in the cutter case 105. The stalk supply unit 106 includes a supply shaft and a disk-shaped supply blade attached to the supply shaft in a plurality along the longitudinal direction. The pedicle shredded portion 107 includes a cutting shaft and a disc-shaped cutting blade attached to the cutting shaft in a plurality along the longitudinal direction.

  The cutter case 105 includes a rear surface portion 109, a right side surface portion 110, and a left side surface portion 111. On the upper part of the cutter case 105, a receiving port 112 for receiving the stalk transported by the stalk transporting device 101 and a lid 113 capable of opening and closing the receiving port 112 are provided. The lid body 113 is configured to be switchable between an open posture (standing posture) and a closed posture (tilted posture) by manual operation. A discharge port 114 is provided at the lower portion of the cutter case 105.

  When the lid body 113 is in the open posture, the shoots conveyed by the shoot supply device 101 are supplied to the shoot supply unit 106 and the shoot chopping unit 107 through the receiving port 112 to supply the shoots It is shredded in the slimming direction by the section 106 and the stalk chopping section 107 and discharged out of the machine from the discharge port 114 of the cutter case 105. When the lid body 113 is in the closed posture, the stem culm conveyed by the culm conveying apparatus 101 slides down the inclined surface of the lid body 113 and is discharged out of the machine.

  A support column 115 is erected on the right rear portion of the body frame 2. An upper fulcrum mounting portion 116 and a lower fulcrum mounting portion 117 are fixed to the column 115. A pin 118 is erected on each of the fulcrum mounting portions 116 and 117. A pipe member 119 extending downward is fixed to the upper portion of the right side surface portion 110 of the stalk chopping device 8.

  An upper bracket 120 is fixed to the upper portion of the right side surface portion 110 of the stalk chopping device 8. A pipe member 119 is connected to the upper bracket 120 so as to penetrate the upper bracket 120. A hole for inserting the upper pin 118 is formed at the tip of the upper bracket 120. A lower bracket 121 is fixed to the lower portion of the right side surface portion 110 of the pedicle shredder 8. A lower end portion of a pipe member 119 is connected to the lower bracket 121. A hole for inserting the lower pin 118 is formed at the tip of the lower bracket 121. Thereby, the pedicle shredder 8 is cantilevered so as to be rotatable around the vertical axis X1 of the upward pin 118 on the support column 115.

(Grain discharge part)
As shown in FIGS. 1, 2, and 10 to 16, the grain discharging unit 7 includes a bottom screw conveyor 131 arranged in a state along the front-rear direction on the bottom surface 5 a of the Glen tank 5, and its bottom screw. And a discharge auger 132 that is connected to the conveyor 131 and discharges the grains stored in the Glen tank 5 to the outside.

(Bottom screw conveyor)
As shown in FIG. 1, the bottom screw conveyor 131 includes a screw 131a. The end portion of the screw 131a on the conveyance start end side protrudes from the front surface portion 5b of the glen tank 5. An input pulley 133 is attached to the end of the screw 131a on the conveyance start end side. A belt (not shown) is wound around the input pulley 133 and the other pulley (not shown) to constitute a belt tension type discharge clutch.

  The end of the screw 131a on the conveyance end side protrudes from the rear surface portion 5c of the glen tank 5. A lower case 134 is fixed to the rear surface portion 5c of the Glen tank 5 so as to surround the end portion of the screw 131a on the conveyance end side and to be connected to the Glen tank 5 in communication.

(Discharge Auger)
As shown in FIGS. 1 and 2, the discharge auger 132 is disposed behind the Glen tank 5, and extends in the vertical direction. The vertical feed screw conveyor 135 extends from the upper end of the vertical feed screw conveyor 135. 135, an intermediate screw conveyor 136 extending in a direction (horizontal direction) orthogonal to the vertical axis X2, and extending from the front end of the intermediate screw conveyor 136 in a direction orthogonal to the horizontal axis X3 of the intermediate screw conveyor 136 and the horizontal axis X3 A transverse screw conveyor 137 that can swing up and down.

(Vertical feed screw conveyor)
As shown in FIGS. 1 and 2, the longitudinal feed screw conveyor 135 surrounds the screw 135a linked to the screw 131a of the bottom screw conveyor 131 via a bevel gear type interlocking mechanism, and communicates with the lower case. A cylindrical case 135b to be connected. The cylindrical case 135b of the vertical feed screw conveyor 135 is supported so as to be rotatable around the vertical axis X2 with respect to the lower case 134.

(Intermediate screw conveyor)
As shown in FIGS. 1 and 2, the intermediate screw conveyor 136 surrounds a screw (not shown) interlocked with a screw 135 a of a vertical feed screw conveyor 135 via a bevel gear type interlocking mechanism and surrounds the screw. A connection case connected to the cylindrical case 135b of the feed screw conveyor 135.

(Transverse screw conveyor)
As shown in FIG. 1 and FIG. 2, the transverse screw conveyor 137 surrounds the screw 137 a linked to the screw of the intermediate screw conveyor 136 through a bevel gear type interlocking mechanism, and surrounds the screw 137 a. A cylindrical case 137b communicating with the connection case is provided, and a grain discharge outlet 137c formed at the tip of the cylindrical case 137b. Accordingly, the cylindrical case 137b of the lateral feed screw conveyor 137 is configured to be rotatable around the horizontal axis X3 in the connection case of the intermediate screw conveyor 136.

(Holding member)
As shown in FIGS. 10, 11, and 13 to 15, a lower holding member 139 that rotatably holds the cylindrical case 135 b of the vertical feed screw conveyor 135 is attached to the upper end portion of the column 115. ing. An upper holding member 140 that rotatably holds the cylindrical case 135b of the vertical feed screw conveyor 135 is attached to the rear surface portion 5c of the Glen tank 5.

(Swivel drive means)
As shown in FIGS. 10 to 12, the lower holding member 139 is provided with an electric motor M (an example of a turning drive unit) that drives the discharge auger 132 to turn around the longitudinal axis X <b> 2.

  A bracket 141 is fixed to the lower holding member 139, and an electric motor M having a pinion gear 142 is supported and fixed to the bracket 141. A ring gear 143 is fixed to the cylindrical case 135 b of the vertical feed screw conveyor 135, and the pinion gear 142 of the electric motor M is configured to mesh with the ring gear 143. By rotating the electric motor M, the pinion gear 142, the ring gear 143 meshing with the pinion gear 142, and the vertical feed screw conveyor 135 to which the ring gear 143 is fixed are rotationally driven around the vertical axis X2 to rotate the discharge auger 132. .

(Undulation drive means)
As shown in FIGS. 1 and 2, a hydraulic cylinder CY (an example of a undulation drive means) is provided across the intermediate screw conveyor 136 and the lateral feed screw conveyor 137 to drive the discharge auger 132 up and down around the horizontal axis X3. It has been. The discharge auger 132 (lateral feed screw conveyor 137) is raised and lowered by the expansion and contraction operation of the hydraulic cylinder CY.

(Cover member)
As shown in FIGS. 1, 2, 10 to 16, a first cover member 145 is attached to the right end portion of the rear surface portion 5 c of the Glen tank 5. The first cover member 145 is a first rectangular plate-like member that is rotatably attached around the longitudinal axis X4 and extends in the front-rear direction via an attachment member 144 fixed to the right end portion of the rear surface portion 5c of the Glen tank 5. A cover portion 146, a rectangular plate-like second cover portion 147 extending from the rear end portion of the first cover portion 146 to the left side from the front-rear direction, and a lateral direction from the rear end portion of the second cover portion 147 A rectangular plate-shaped third cover portion 148 that extends in the direction of the right side, and a rectangular plate-shaped fourth cover portion 149 that is attached to the rear side of the support column 115 and extends in the lateral direction, and is configured in a substantially L shape in plan view. It is.

  That is, the first cover member 145 has first to third cover portions 146 to 148 (the first cover member 145 of the first cover member 145) attached to the right end portion of the rear surface portion 5 c of the Glen tank 5 so as to be rotatable around the vertical axis X 4. A movable part) and a fourth cover part 149 (fixed part of the first cover member 145) that is attached to the rear side of the support column 115 and covers a portion immediately behind the vertical feed screw conveyor 135. It is. A pin 156 is fixed to the third cover portion 148, and a plate-like member 157 having a hole into which the pin 156 can be inserted is fixed to the fourth cover portion 149. When performing the maintenance work, the movable part of the first cover member 145 is rotated laterally outward. After the maintenance work, the movable part of the first cover member 145 is rotated inward and laterally. At this time, the third cover portion 148 abuts while being guided by the plate-like member 157 of the fourth cover portion 149, and the pin 156 fixed to the third cover portion 148 contacts the plate-like member 157 of the fourth cover portion 149. Enter the hole formed. Thereby, the obstruction | occlusion attitude | position of the movable part of the 1st cover member 145 can be maintained favorable. Upper and lower cutouts that allow the upper and lower brackets 120 and 121 to enter in the maintenance posture of the pedicle shredder 8 are formed in the inner portion of the fourth cover portion 149.

  A partition plate 150 is erected on the right side surface portion 110 of the stalk chopping device 8. The partition plate 150 partitions the space A1 between the stalk chopping device 8 (lid body 113) and the waste straw cover 103 and the discharge auger 132 (enclosed space A2 to be described later). Preventing the waste auger 132 from entering the vertical feed screw conveyor 135 side (right side) from the right side surface portion 110 of the shredding device 8, or cracking waste generated in the stalk shredding device 8 toward the ring gear 143 and the pinion gear 142. A trapezoidal plate-like plate connected to the upper surface of a bent portion 110a formed on the upper side of the right side portion 110 of the cutter case 105 on the vertical feed screw conveyor 135 side (right side) by a bolt. A mounting seat 151, and a trapezoidal plate-shaped partitioning portion 152 that extends upward from the left end of the mounting seat 151 and partitions the space A 1 and the discharge auger 132. That. The left end portion of the mounting seat 151 overlaps the bent portion of the right side surface portion 110 of the cutter case 105 in plan view. Portions other than the left end portion of the mounting seat 151 protrude from the right side surface 110 of the cutter case 105 toward the longitudinal feed screw conveyor 135 (right side) in plan view. An upper end portion of the partition portion 152 is close to a lower end portion of the right side surface portion of the exhaust wall cover 103.

  A second cover member 153 is erected on the right end portion of the mounting seat 151 of the partition plate 150. The second cover member 153 includes a trapezoidal plate-like first cover portion 154 facing front and rear, and a rectangular plate-shaped second cover portion 155 facing sideways, and is formed in an L shape in plan view. The second cover member 153 covers the left rear part of the ring gear 143 from the rear side and the left side so as to face the left rear part of the ring gear 143 fixed to the cylindrical case 135b of the vertical feed screw conveyor 135. The first cover portion 154 of the second cover member 153 is located on the inner side of the mounting seat 151 of the partition plate 150 in plan view. A part of the second cover portion 155 of the second cover member 153 protrudes from the mounting seat 151 of the partition plate 150 to the vertical feed screw conveyor 135 side (right side) in plan view. The tip of the second cover portion 155 of the second cover member 153 is close to the vertical axis X1 in plan view. The lower end portions of the first cover portion 154 and the second cover portion 155 in the second cover member 153 are the same as or substantially the same position as the lower end portion of the partition portion 152 of the partition plate 150 in a side view, and the first cover portion 154 and the first cover portion 153 The ring gear 143 is covered so that the upper end portion of the two cover portion 155 is positioned slightly lower than the upper end portion of the partition portion 152 of the partition plate 150.

  In addition, the lower end portions of the first cover portion 154 and the second cover portion 155 in the second cover member 153 are extended below the lower end portion of the partition portion 152 of the partition plate 150, and the first cover portion in the second cover member 153 is extended. 154 and the upper end portion of the second cover portion 155 may be extended upward from the upper end portion of the partition portion 152 of the partition plate 150 to cover not only the ring gear 143 but also the entire length of the vertical feed screw conveyor 135 in the vertical direction. Good.

  As described above, by attaching the second cover member 153 to the attachment seat 151 of the partition plate 150, for example, a bracket for attaching the second cover member 153 can be made unnecessary, and the configuration for attaching the second cover member 153 is simplified. Can be achieved.

  A hook mechanism (not shown) is attached between the cutter case 105 and the rear part of the machine body. When performing normal work, the stalk chopping device 8 is positioned in a normal posture close to the threshing device 6. As shown in FIG. 13 (solid line) and FIG. 15, in this normal posture, the front end portion of the third cover portion 148 of the first cover member 145 and the right end portion of the fourth cover portion 149 are close to each other in plan view. The left end portion of the four cover portion 149 and the tip end portion of the second cover portion 155 of the second cover member 153 are close to each other, and the first cover member 145, the second cover member 153, the fourth cover portion 149, and the Glen tank 5 Since the surrounding space A2 surrounding the longitudinal feed screw conveyor 135, the electric motor M, and the ring gear 143 of the discharge auger 132 is formed on the inner side of the rear surface portion 5c and the right side surface portion 110 of the stalk chopping device 8, the discharge auger 132 is formed. The vertical feed screw conveyor 135, the electric motor M, and the ring gear 143 can be well protected. Further, it is possible to prevent straw scraps and the like floating at the rear of the machine body from adhering to the ring gear 143 and the pinion gear 142.

  As shown in FIG. 13 (two-dot chain line) and FIG. 14, when performing maintenance work, the hook mechanism is released and the pedicle chopping device 8 is rotated around the vertical axis X1 backward with respect to the machine body. . At this time, the stalk chopping device 8 is positioned in a maintenance posture separated from the threshing device 6, and the vertical feed screw conveyor 135 of the discharge auger 132 and the electric motor between the threshing device 6 and the stalk chopping device 8. Since the communication space A3 communicating with the M and the ring gear 143 is formed, the operator can perform maintenance work such as inspection and grease up of the electric motor M, the ring gear 143, and the pinion gear 142 from the communication space A3. Therefore, a maintenance operation can be performed with a simple operation of changing the attitude of the stalk chopping device 8 to the maintenance attitude without attaching or removing the first cover member 145 or the second cover member 153.

  In addition, the second cover member 153 swings laterally outward around the distal end portion of the second cover portion 155 of the second cover member 153 as the stem cutting device 8 moves from the normal posture to the maintenance posture. To do. That is, the tip of the first cover portion 154 of the second cover member 153 moves from a position close to the ring gear 143 to a position away from the ring gear 143, and the first cover portion 154 of the second cover member 153 and the ring gear 143 Since a large space is formed between them, maintenance work can be easily performed. Furthermore, if the movable part of the first cover member 145 is rotated laterally outward about the vertical axis X4, maintenance work can be performed in a wider work space.

[Another embodiment]
(1) The cylindrical case 135b of the vertical feed screw conveyor 135 is fixedly supported by the lower case 134, and the connection case of the intermediate screw conveyor 136 is rotatable about the vertical axis X2 to the cylindrical case 135b of the vertical feed screw conveyor 135. It is good also as a structure to connect.

(2) Further, when the fourth cover portion 149 is omitted and in the normal posture, the front end portion of the first cover member 145 and the front end portion of the second cover member 153 are close to each other in a plan view. An encircling space A <b> 2 surrounding the longitudinal feed screw conveyor 135, the electric motor M, and the ring gear 143 may be formed on the inner side of the cover member 145, the second cover member 153, the Glen tank 5, and the stalk chopping device 8. .

(3) Instead of the configuration in which the second cover member 153 is attached to the partition plate 150, the second cover member 153 is directly attached to the right side surface portion 110 of the pedicle shredding device 8, or the second cover member 153 is attached to the pedicle. You may employ | adopt the structure attached to the bracket (not shown) etc. extended from the right side surface part 110 of the shredding apparatus 8. FIG.

(4) In the case where the ring gear 143, the electric motor M, and the like are provided in the lower part of the vertical feed screw conveyor 135, the second cover member 153 may be attached to the lower part of the right side surface part 110 of the pedicle shredder 8. In this case as well, a configuration in which the second cover member 153 is attached to a bracket (not shown) or the like extending from the right side surface portion 110 of the pedicle shredder 8 may be employed.

  The present invention can be applied not only to a self-removing combine but also to a normal combine.

2 Machine frame 5 Glen tank 6 Threshing device 8 Stem chopping device 132 Discharge auger 135 Vertical feed screw conveyor 142 Pinion gear 143 Ring gear 145 First cover member 150 Partition plate 153 Second cover member A2 Surrounding space A3 Communication space M Motor X2 Vertical Shaft core

Claims (2)

In the rear part of the fuselage frame, the Glen tank and the threshing device are distributed to the left and right,
A discharge auger that discharges the grain stored in the Glen tank to the outside behind the Glen tank is provided so as to be rotatable around the vertical axis.
Behind the threshing device is a combine provided with a stalk and shredder device capable of shredding the stalk after being threshed by the threshing device,
A ring gear that meshes with a pinion gear of a motor fixed to the machine frame is fixed to a vertical feed screw conveyor of the discharge auger, and the discharge auger is configured to be rotatable around a vertical axis by driving the motor.
The stalk chopping device is rotated around a vertical axis on the discharge auger side of the stalk chopping device, and is in a normal posture close to the threshing device and a maintenance posture spaced apart from the threshing device. Configure it to be changeable,
A first cover member that covers the outside of the vertical feed screw conveyor is provided at the rear of the Glen tank,
A second cover member that covers the outside of the vertical feed screw conveyor is provided in the stalk shredder,
When the stem chopping device is in the normal posture, the front end of the first cover member and the front end of the second cover member are close to each other in plan view, and the first cover member and the second cover member While forming a surrounding space surrounding the vertical feed screw conveyor on the inner side of the cover member, the Glen tank, and the stalk chopping device,
A combine configured to form a communication space that communicates with the longitudinal feed screw conveyor from between the threshing device and the stalk chopping device when the stalk chopping device is in the maintenance posture.   The partition plate for partitioning the stem and shredder from the discharge auger is attached to a portion on the discharge auger side of the stem and shredder, and the second cover member is attached to the partition plate. Combine as described.

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