JP2002360040A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine capable of efficiently solving the clogging of culm in a transporting apparatus for transporting reaped culm with a base- clamping transporting part and a tip-holding transporting part and feeding the culm to a thresher. SOLUTION: A clamping and transporting guide rail 40 of a base-clamping transporting part 33 and a holding and transporting guide rail 41 of a tip-holding transporting part 34 are attached to the same supporting member 45. When the supporting member 45 is switched to a working state by rotating around an axis 47a relative to the attaching part 46, the holding and transporting guide rail 40 is placed opposite to a base-clamping transporting endless belt to form a transportation path and the holding and transporting guide rail 41 is placed opposite to the tip-holding transporting endless belt to form a transportation path. When the supporting member 45 is switched to the state for maintenance, the clamping and transporting guide rail 40 is separated from a base-clamping transporting endless belt to open the transporting part of the endless belt and the holding and transporting guide rail 40 is separated from the tip-holding transporting endless belt to open the transporting part of the endless belt.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant-holding / conveying section which raises and processes a planted cereal culm by a raising device and reaping process by a reaper, and acts on the root side of the cultivated cereal stem; The present invention relates to a combine configured to be conveyed by a transfer device including a tip locking transfer portion acting on the threshing device.

[0002]

2. Description of the Related Art In the above-mentioned combine, when a grain is clogged in a transport device, if the transport guide rail of the transport device is in a normal mounting state in which the transport guide rail is opposed to the transport endless belt-shaped member, the jam is removed. It can be difficult.
For this reason, conventionally, the nipping and conveying guide rail of the stock holding and conveying section of the conveying apparatus is detachably mounted, and the nipping and conveying guide rail can be easily removed to easily open the conveying path of the stock and nipping conveying section. Had become.

[0003]

Conventionally, when grain culm clogging has occurred, clogging may also occur in the head-locking and conveying portion of the conveying device. The rails cannot be easily removed like the nipping conveyance guide rails, and it takes time to clear the jam. An object of the present invention is to provide a combine that can easily and smoothly eliminate a grain stalk clogging over both the stock-holding and transporting portion and the tip-locking transporting portion of the transport device.

[0004]

The constitution, operation and effect of the invention according to claim 1 are as follows.

[Structure] The planted grain culm is raised by a raising device and cut by a cutting device.
In a combine that is configured to feed the harvested grain culm to a threshing device by being conveyed by a conveying device including a root holding and conveying portion acting on the root side and a tip locking conveying portion acting on the tip side, Attaching the guide transport rails of the pinch transport section and the transport guide rails of the tip locking transport section to the same support member, and this support member,
A state in which the nipping and conveying guide rails face the endless nipping and conveying endless belt to form a conveying path, and the locking and conveying guide rails face the tip locking and conveying endless belt to form a conveying path; The pinch-and-convey guide rail separates from the base pinch-and-conveyance endless strip to open the conveyance action portion of this pinch-and-pinch conveyance endless strip, and the locking conveyance guide rail separates from the tip-locking and conveyance endless strip. It is configured to be freely operable to switch to a management state in which the conveying operation portion of the endless conveying endless belt is opened.

[Operation] When the supporting member is switched from the working state to the managing state, both the nipping conveyance guide rail and the locking conveyance guide rail move on the supporting member, and the stock carrier nipping conveyance endless band or the tip locking. The transfer end of the endless band in both the stock-holding / conveying unit and the tip-end engaging / conveying unit can be clogged away from the conveying endless band and can be opened so that the grain culm can be easily removed.

[Effect] Therefore, even if the grain culm is clogged over both the transporting portions of the stock-holding and transporting portion and the tip-locking transporting portion, the endless belt-shaped transporting action portions of both transporting portions are opened, and the clogged grain culm can be easily removed. And can be transported easily. In addition, the rails of the nipping transport guide rail and the locking transport guide rail are all separated from the transport endless belt at once, so that the time required for opening the two transport sections of the stock nipping transport section and the tip locking transport section can be reduced. Clogging can be easily and quickly cleared.

The structure, operation and effect of the invention according to claim 2 are as follows.

In the structure according to the first aspect of the present invention, the support member extends from the mounting portion of the preprocessing portion so as to be swingable around a vertical axis of the machine body, and the holding member is held at the extension end side. The transfer guide rail and the locked transfer guide rail are supported, and are configured to swing around the axis and switch between the working state and the management state.

[Operation] The support member is rotated with respect to the mounting portion, and the weight of the support member, the nipping transport guide rail and the locking transport guide rail is moved while the weight of the support member is supported by the mounting portion to form an endless transport belt. It can release the body.

[Effects] Therefore, in order to open the transporting portions in the stock holding and transporting portion and the tip engaging transporting portion, the weights of both transporting guide rails and the supporting members are easily supported while being supported by the mounting portion. The work to clear the clog can be performed easily.

The structure, operation and effect of the invention according to claim 3 are as follows.

In the structure according to the first or second aspect of the present invention, a rail supporting portion for detachably supporting a front end side of the locked conveyance guide rail in a state where the conveyance path is formed is fixed to a preprocessing portion. And the locking / conveying guide rail is disengaged from the rail support portion by a switching operation of the support member to the management state.

[Operation] In order to form the transport path by the locked transport guide rail, the front end side of the locked transport guide rail is supported by the rail support portion, and the grain culm is surely irrespective of the reaction force from the transported grain culm. The conveying path is formed so as to act as a guide. When opening the transport section of the stock-holding transport section and the front-end locking transport section, the front end side of the locking transport guide rail comes off the rail support section by switching the support member from the working state to the management state. The support member can be switched to the management state to open the transport section without performing any special operation for removal.

[Effect] Therefore, at the time of work, the front end side of the locking conveyance guide rail is supported by the rail support portion,
The transported culm can be reliably guided by the locked transport guide rail, and the culm transport can be performed smoothly. In the event that clogging of the grain stem occurs, the locking and conveying guide rail can be easily moved from the front end locking and conveying endless belt without any special operation for removing the locking and conveying guide from the rail support. By separating them, the conveying sections of the stock-holding / conveying section and the tip-locking / conveying section can be easily opened to perform the work for clearing the clogging.

The structure, operation and effect of the invention according to claim 4 are as follows.

According to a second aspect of the present invention, a guide rail for guiding the harvested grain culm from the conveying device to a threshing feed chain is supported by the support member, and a handling cylinder of the threshing device and threshing grain are provided. An upper structure provided with a culm conveyance guide rail is connected to a lower structure provided with a threshing feed chain so as to be capable of swinging open / close operation.

[Operation] At the time of operation, the harvested grain culm from the transport device is guided by the guide rail and smoothly supplied to the threshing feed chain. When the upper structure of the threshing device is raised and opened, the threshing grain culm transport guide rail separates from the threshing feed chain, and when the support member is rocked to move the nipping transport guide rail and the locking transport guide rail, threshing is performed. The culm conveyance guide rail is naturally separated from the threshing feed chain due to the swinging of the support member, and the nipping conveyance guide rail and the locking conveyance guide rail move to convey at the stock-holding conveyance section and the tip locking conveyance section. Allow the path to be opened.

[Effect] If the upper structure of the threshing apparatus is raised and opened, the nipping and conveying guide rails and the locking and conveying guide rails can be easily and quickly performed without the need for removing the threshing grain culm conveying guide rail from the support member. Can be removed from the transport chain to remove the clogged grain culm.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a threshing device 4 is mounted on a body frame 3 of a body of a machine having a crawler type traveling device 1, a riding type driving unit 2, and a driving unit located below a driver's seat. Of the pre-processing unit 10 including a plurality of pulling devices 11a, which are equipped with a grain tank 5 and the like, and are arranged in the lateral direction of the fuselage, and a clipper-type mowing device 11b located behind the lower end of the pulling device 11a. A base end of the main frame 12 in the main frame 12 is rotatably connected to a support portion located at a front part of the body frame 3 around an axis P oriented laterally to the body, and one end is connected to the main frame 12. The hydraulic lift cylinder 7 is mounted over the flexible link mechanism 6 and the fuselage frame 3, and the power is transmitted from the prime mover of the fuselage body to the pre-processing unit 10. It has configured down.

The combine is used for harvesting rice, wheat, and the like. The pre-processing unit 10 is pivoted up and down around the axis P by a lift cylinder 7 so that the pre-processing unit 10 is moved to the main body. Up / down operation. In other words, a lowering work position where the lower end of the raising device 11a and the mowing device 11b are located close to the ground and cut the stalks,
The ascent / descent operation is performed with respect to the body of the vehicle to an ascending end position or a non-working position where the ascending end is moved to a position close to or near the ascending end. Then, along with the airframe running, the pre-processing unit 10 causes the planted grain culm of rice, wheat, etc. to be raised and cut,
The harvested culm from the pre-processing unit 10 is threshed by the threshing device 4, and the thresh grains from the threshing device 4 are transported to and stored in the grain tank 5.

The pre-processing unit 10 is configured as shown in FIGS. That is, the main frame 12, which is a transmission case extending from the support portion of the body main body to the front of the body so as to be vertically swingable around the axis P,
A lateral transmission case 13 having an intermediate portion connected to the extending end of the main frame 12, a weeding frame 14 extending forward from both ends of the lateral transmission case 13, A cutting frame 15 connected between the base ends of the grass frame 14, a weeding frame 14 extending forward from a plurality of locations in the longitudinal direction of the cutting frame 15, and one end of the lateral transmission case 13. The vertical transmission case 16 erected in the vertical direction, the support 13a erected at the other end of the horizontal transmission case 13 and the upper end of the vertical transmission case 16 The drive transmission case 17, the transfer frame 18 connected to the base end of the main frame 12 and the intermediate portion of the drive transmission case 17. The frame, have configured the preprocessing unit frame.

A weeding tool 14a is fixedly mounted at the tip of each of the plurality of weeding frames 14 arranged in the lateral direction of the machine body, and the planting grain culms to be cut are cut by the weeding tools 14a. A pair of weeding frames 1 adjacent to each other on the frame 14
It is configured to be introduced into the raising path located between the four. The plurality of raising devices 11a arranged in the machine body lateral direction corresponding to each raising path one by one so as to individually act on the planted grain culm introduced into each raising path, and the tip side of the weeding frame 14. The mowing device 11b which is attached to the raising transmission case 17 and cuts the root of the planted grain culm which has been raised by the raising devices 11a.
Is mounted on the cutting frame 15, and a scraping transport device 20 including a plurality of scraping rotating bodies 21 arranged in the lateral direction of the machine body above the cutting device 11 is supported by the weeding frame 14 or the like. A transport device 30 extending from the rear side of the threshing device 4 to the vicinity of the front end of the threshing feed chain 4a of the threshing device 4 is supported by the transport frame 18 or the like.

As shown in FIG. 4 and the like, the raking and conveying device 20 includes a plurality of the rotatable raking rotators 2.
1, a plurality of rotatable locking and conveying belts 22 arranged side by side in the machine body in a state of being located one above each raking rotator 21, and a part of the plurality of raking rotators 21 Endless rotating chains 23a and 23b for nipping and transporting the grain stem above the squeezing rotator 21 and the conveying start end near the rear side of the squeezing rotator 21 located closest to the threshing feed chain. The end portion of the plurality of planted grain stems to be raised and raised is connected to each of the hooking / conveying belts 22.
The cutting claw of the cutting device 11b is raked and supplied to the cutting device 11b by the locking claw of the cutting device 11b. And the latching claws of the latching and conveying belt 22, scrape and convey the rear of the reaping device 11 b and feed it to the start end side of the transport device 30, where the reaping process is performed at the portion of the reaping device 11 b located on the threshing feed chain side. The plurality of harvested grain culms are scraped and conveyed to the rear of the cutting device 11b by the corresponding engaging claws of the raking rotator 21 and the engaging claws of the engaging and conveying belt 22, and the endless rotation is further performed. The moving chains 23a, 23b and 24 pinch and convey the rear and supply them to the conveying device 30.

As shown in FIGS. 1, 4 and the like, the transfer device 30 includes three endless rotating chains 31 arranged in the transfer direction.
a, 32a, and 33a, a stock-holding / conveying unit 34 having an endless rotating chain 34a located at a higher level than the stock-side holding / conveying unit, and a higher level than the head-holding and conveying unit 34. And a guide rail 36 extending from the transport end of the stock-holding and transporting section to the transport start end of the threshing feed chain 4a.

The stock-holding / conveying portion is located at the most conveying start end of the three endless rotating chains 31a to 33a and has a starting endless endless rotating chain 31a provided with a grain stalk-clamping projection. A start end side stock-holding / conveying section 31 including first and second holding / conveying guide rails 37 and 38 facing the conveying operation section of the start-end-side endless rotating chain 31a; and the three endless turning chains 31a. ~ 33a
, A middle endless rotating chain 32a having a grain stalk-clamping projection, and a third nipping-conveying guide rail facing the conveying operation portion of the intermediate endless-rotating chain 32a. And an endless rotating chain 31a to 3 that includes an intermediate stock holding / conveying section 32 including
3a, the end-side endless rotating chain 33a which is located closest to the conveying end and is provided with a grain stalk-clamping projection, and the fourth pinch facing the conveying action portion of the end-side endless rotating chain 33a. It is constituted by a terminal side holding and conveying section 33 having a conveying guide rail 40.

The starting end stock holding / conveying section 31 is provided with two squeezing rotary members 21 on the operating section side of the squeezing / conveying apparatus 20.
The starting endless endless rotation chain 31a and the first nipping and conveying guide rail 37 are guided by the guide portion formed at one end of the round bar member forming the first nipping and conveying guide rail 37 on the root side of the harvested grain culm. And is conveyed while being pinched and conveyed by the starting endless endless rotating chain 31a and the first pinching / conveying guide rail 37.
One scraping rotator 21 and endless rotating chain 2 at the center of
The starting endless endless rotating chain 31a and the second end of the round bar member forming the second nipping and conveying guide rail 38 are connected to the root side of the harvested grain culm from the base 3b.
It is introduced between the nipping and conveying guide rails 38 and merges with the cereals from the first nipping and conveying guide rails 37, and the root of the merged cereals is the endless endless rotating chain 31 a and the second nipping and conveying guide rail. And the endless rotating chain 2 of the scraping and conveying device 20.
The stem side of the harvested grain culm from 3a, 24 is introduced into the transport end side of the starting endless endless rotation chain 31a, and is joined to the grain stem from the second nipping transport guide rail 38, and the merged grain culm strain is introduced. The original side is taken over by the intermediate endless rotation chain 32a of the intermediate stock original holding and conveying section 32 and the third holding and conveying guide rail 39, and is nipped and conveyed in the machine direction and laterally outward of the machine. The end-side stock-holding / conveying section 33 inherits the root side of the harvested grain culm from the intermediate stock-holding / conveying section 32 by the end-side endless rotating chain 33a and the fourth holding / conveying guide rail 40, and threshing to the rear of the machine. The feed chain 4a is transported toward the transport start end.

The tip locking and transporting section 34 has a transport start end located at a higher level than the stock holding and transporting section behind the raking rotator 21 closest to the operating section of the raking and transporting apparatus 20, and engages. The endless rotating chain 34a having a plurality of stationary transporting claws 34b that can be undulated and oscillated at a plurality of locations, and the locking transporting guide rail 41 facing the terminal side of the transporting side of the endless rotating chain 34a. The end portion of the plurality of cut grain culms from the scraping and conveying device 20 where the stock-holding and conveying portion is conveyed acts on the front end side of the conveying start end of the endless rotating chain 34a, and the engaging and conveying claws 34b are taken over. From the middle part of the conveyance, and is locked and conveyed by the locking conveyance claw 34b along the locking conveyance guide rail 41 so as not to come off from the locking conveyance claw 34b. By conveying claw 34b is moved toward the inboard and drawing action on the body inside from the terminal end side strain based nip transport unit 33 the tip side.

With this arrangement, the transport device 30 transfers the plurality of cut grain culms from the scraping transport device 20 to the starting-side root-holding transport portion 31 of the root-holding transport portion and the tip-side engaging transport portion 34. It is then inherited and merged at the transport start end, and then conveyed toward the rear of the machine body and laterally outside the machine body by the intermediate stock-holding / conveying section 32 of the stock-side holding / conveying section and the tip locking / conveying section 34. At this time, the tip is transported while being pressed and guided by the tip transport guide 35 so that the tip is moved along the tip guide plate 42 on the tip side than the tip locking transport portion 34 operates. Then, when reaching the end-side stock-holding / conveying section 33, the locking / conveying claw 34b of the tip-holding / conveying section 34 moves away from the terminating-side stock-holding / conveying section 33 to the inside of the machine body. Change the posture to the lying posture located further inside the aircraft,
The stock side is sent from the end side stock-holding / conveying section 33 to the lower side of the guide rail 36, and is guided by the guide rail 36 to be fed to the conveyance start end of the threshing feed chain 4a.

The intermediate stock holding / conveying section 32 is oscillated by a drive mechanism (not shown) around an axis located at the conveying start end side so that the handling depth of the threshing apparatus 4 is adjusted. It is composed. That is, when the swing adjustment of the intermediate stock element pinching / conveying section 32 is performed, the culm body portion of the grain culm supplied from the intermediate stock element pinching / conveying section 32 is adjusted by the end side stock element pinching / conveying section 33 from before the adjustment. It changes to the stock side and the tip side,
The threshing feed chain 4a is located at the end side
The culm portion that is inherited and pinched changes to the root side of the stock and the tip side, and the tip side length of the harvested grain culm inserted into the handling room of the threshing device 4 changes.

Each of the locking conveyance guide rail 41, the fourth nipping conveyance guide rail 40, the tip conveyance guide 35, and the guide rail 36 of the conveyance device 30
It is configured to be supported by the preprocessing unit frame by an attachment structure including one support member 45 shown in FIG. 6 and the like.

As shown in FIG. 1, FIG. 5, and FIG. 6, the mounting structure is provided by a support arm extending rearward from the intermediate portion of the vertical transmission case 16 of the preprocessing unit frame. A mounting portion 46 is located on the upper side in the transport direction of the transporting device 30 with respect to the nipping transport guide rail 40 and the locked transport guide rail 41, and the mounting portion 4
6 is rotatably connected at one end to the extension end of the connecting pin 47 by the connecting pin 47, so that the connecting pin 47 is swingably supported around the body vertical axis 47a of the connecting pin 47. The supporting member 45 configured as above
A holding rail supporting portion 45a provided on the free end side of the support member 45 to support the fourth holding / conveying guide rail 40; and the locking / conveying guide rail 41 on the free end side of the support member 45. A guide supporting portion 45b provided to support the tip conveying guide 35;
And a rail supporting portion 45c provided on the free end side to support the guide rail 36.

The holding rail supporting portion 45a slidably supports a pair of mounting rods 40a extending from the fourth holding / conveying guide rail 40 and slides toward the endless endless rotation chain 33a by a spring 48. By energizing, the fourth pinching / conveying guide rail 40 moves the end-side endless rotating chain 33a in accordance with the volume of the conveying culm.
It supports so that it approaches or separates from. In addition, the holding rail support portion 45a also supports a support rod 49 made of a spring plate.
Threshing feed chain 4 from the end side stock former holding conveyance section 33
The seed side of the grain stalk is pressed and supported from above so that the grain stalk supplied to a does not fall off during delivery.

The rail support portion 45c is provided on the guide rail 3
By rotatably supporting the base end portion of No. 6, the guide rail 36 is supported so as to swing up and down with respect to the threshing feed chain 4a in accordance with the volume of the transported culm.
The rail support portion 45c supports a cover 50 that covers the upper part of the transport start end of the threshing feed chain 4a so as to be able to swing up and down, and the weight of the cover 50 causes the free end side of the guide rail 36 to threshing feed. The chain is pressed against the chain 4a.

When the support member 45 is swung around the shaft center 47a, a positioning bracket 51 attached to an intermediate portion of the support member 45 is fixed to the vertically-oriented transmission case 16 to be fixed. The working state in which the free end of the arm 52 is in contact with the free end and the management state in which the free end swings out to the lateral outside of the machine body than in this working state are switched. The support member 45 is connected to the shaft 47a.
When the swinging operation is performed around, the fourth nipping conveyance guide rail 40, the locking conveyance guide rail 41, the spike conveyance guide 35, and the guide rail 36 move on the support member 45, and move in solid lines in FIG. When the support member 45 is in the working state, the fourth pinching / conveying guide rail 40 faces the conveying action portion of the end-side endless rotating chain 33a, and cuts off the intermediate stock element pinching / conveying section 32, as shown in FIG. A transport path for nipping and transporting the grain culm with the end-side endless rotating chain 33a is formed, and the locked transport guide rail 41 rotates the harvested grain culm from the transport starting end side of the endless rotating chain 34a endlessly. A transport path for locking and transporting is formed by the transport end side of the moving chain 34a, and the tip transport guide 35 approaches the guide surface of the tip guide plate 42 and The conveying path is formed between the feeding plate 4 and the guide plate 42, and the guide rail 36 extends from the end side of the feeder pinching and conveying section 33 to the upper side of the conveying start end of the threshing feed chain 4 a. To the threshing feed chain 4a. As shown by a two-dot chain line in FIG. 5, when the support member 45 is in the management state, the fourth nipping transport guide rail 40 is separated from the transport operating portion of the end-side endless rotating chain 33a to the lateral side of the machine body. The transport operation section is opened, and the locked transport guide rail 41 is separated from the transport operation section of the endless rotating chain 34a to the lateral outside of the machine body to open the transport operation section. Reference numeral 35 denotes a state in which the guide surface is released from the guide surface of the tip guide plate 42 to the outside of the machine body and the guide surface is opened. The part is opened.

The shaft center 47a for switching the support member 45 from the working state to the management state is connected to the preprocessing unit 1.
In the state where 0 is operated to any mounting height with respect to the body main body such as the lowering work state and the ascending non-work state, the upper end side is configured as the inclined axis located closer to the front side of the body.
Thus, regardless of the mounting height of the pre-processing unit 10 with respect to the body of the machine, the tip locking and conveying unit 34
And the endless chain 34a of the terminal side
When the transfer operation section 33a is opened, the shaft center 47a
Of the support member 45 and the guide rails 40, 4
The support member 45 is maintained in an administrative state for a weight such as one.

When the support member 45 is operated in the working state, the lock bolt 53 extends over the positioning bracket 51 and the fixed-side support arm 52 as shown in FIG.
And the guide support 45 as shown in FIG.
b, by attaching the lock bolt 56 to the fixed side bracket 55 fixed to the extension end of the support arm 54 extending from the transfer frame 18 of the preprocessing unit frame. The support member 45 is fixed in the working state, and the fourth holding / conveying guide rail 40 and the locked / conveying guide rail 41 and the like are held in a state where a conveying path is formed.

As shown in FIG. 9, among the structures constituting the threshing unit and the sorting unit of the threshing device 4, the handling drum 4b is rotatably supported inside, and the threshing grain culm transport guide rail is provided. 4
The portion located on the side opposite to the threshing grain culm transport guide rail 4c with respect to the handling cylinder 4b of the upper structure 8a supporting the c outside is supported by the receiving net 4d and the threshing feed chain 4a and the sorting chamber. The upper structure 8a is rotatably connected to the lower structure 8b provided with the connecting shaft 9 so that the upper structure 8a is vertically moved with respect to the lower structure 8b around an axis parallel to the handle axis of the connecting shaft 9. It is configured to be able to swing open and close. That is, as shown by a two-dot chain line in FIG. 9, the threshing device 4 is configured to raise and swing the upper structure 8a with respect to the lower structure 8b so that the threshing device 4 can move between the handling cylinder 4b of the handling room and the receiving net 4d. Grain stalk supply opening and handling opening are opened and receiving net 4d in handling room
And the handling cylinder 4b can be inspected and cleaned from the grain stalk supply port and the handling port, and the guide rail 36 is opened from the threshing feed chain 4a to the lateral outside. And FIG.
As shown by a solid line in this figure, the upper structure 8a is lowered and swung with respect to the lower structure 8b from this state, so that the threshing device 4 can provide the space between the handling cylinder 4b of the handling room and the receiving net 4d and the supply of grain culm. The mouth and the handling mouth are closed, and the culm is brought into a closed state in which threshing can be performed.

As shown in FIGS. 5 and 8, a fork portion 41a provided at the front end of the locking / conveying guide rail 41 is provided.
And the endless rotating chain 2 of the scraping and conveying device 20
A rail supporting portion 27 provided with a headed bolt attached to a guide plate mounting member 26 fixed to the preprocessing unit frame so as to support a guide plate 25 for guiding the ear end side of the grain stem conveyed by 3a; Thus, a guide rail support structure for detachably supporting the front end side of the locking conveyance guide rail 41 in the working state is configured. That is, the support member 4
When the locked transport guide rail 41 is in the working state and the transport path is formed facing the endless rotating chain 34a, the fork portion 41a of the locked transport guide rail 41 is moved to the rail support section 27. To be engaged. Then, the rail support portion 27 supports the front end side of the locked conveyance guide rail 41 so as not to be easily vibrated, and the grain culm is reliably introduced between the locked conveyance guide rail 41 and the endless rotating chain 34a. To do. When the support member 45 is switched to the management state, the switching operation causes the fork portion 41a to be disengaged from the rail support portion 27 by itself, and the support of the locking conveyance guide rail 41 by the rail support portion 27 is automatically released. You.

As shown in FIGS. 6 and 8, fork portions 35a are provided at the front end of the spike transport guide 35, and guide support portions 28 are provided by attaching headed bolts to the guide plate mounting member 26. Thus, a guide support structure for detachably supporting the front end side of the tip conveying guide 35 in the working state is configured. That is, with the support member 45 in the working state, the tip transport guide 35 is
When the transport path is formed to face the guide surface of the head, the fork portion 35a of the tip transport guide 35 is engaged with the guide support portion 28. Then, the guide supporting portion 28 supports the front end side of the tip transport guide 35 so as to be hard to vibrate, so that the grain culm is reliably introduced between the tip transport guide 35 and the tip guide plate 42. And the support member 4
At the time of switching the state 5 to the management state, the switching operation causes the fork portion 35a to be disengaged from the guide support portion 28 by itself and the support by the guide support portion 28 of the tip transport guide 35 to be released by itself.

That is, when clogging of the grain culm occurs in the head-locking / conveying section 34 or the end-side holding / conveying section 33, the upper structure 8a of the threshing device 4 is raised and opened, and the guide rail 36 is moved to the threshing feed chain 4a. The support member 45 is switched from the working state to the managing state while being removed from the state. Then, both the locked conveyance guide rail 41 and the fourth nipping conveyance guide rail 40 are attached to the support member 45 and moved laterally outside the body to separate from the conveyance chains 33a and 34a, and to the conveyance operation portion of the tip locked conveyance chain 34a. The transporting action portion of the stock-holding and transporting chain 33a can be opened at a stroke so that grain culms can be easily removed. Then, at this time, the front end side of the locking conveyance guide rail 41 comes off the rail support portion 27 and the front end side of the tip conveyance guide 35 comes off the guide support portion 28, and only the switching operation of the support member 45 is performed. In addition, the tip transport guide 35
Also moves laterally outward with the support member 45, and the guide surface of the tip guide plate 42 can be opened together.

As shown in FIG. 5 and the like, the guide support portion 45b is connected to a base end portion 45d having a base end fixed to the support member 16, and a base end connected to a front end of the base end portion 45d. Bolts are detachably connected by bolts.
5 is connected to the supporting member 45 at a stroke by the attachment / detachment of the leading end portion 45e to / from the base end portion 45d. It is designed to be removable. Thereby, for example, when removing the clogged grain culm, if the locking conveyance guide rail 41 or the ear tip conveyance guide 42 becomes an obstacle to the operation even when the support member 45 is switched to the management state, the support member 45 may be used as necessary. Can be removed at once.

[Another Embodiment] As in the above embodiment, the support member 45 is configured to be switched between a working state and a management state by swinging operation, and is also switched between a working state and a management state by attachment and detachment. And may be implemented. In addition, when the switching is performed by the swing operation, the swing is switched around the inclined axis as in the above embodiment, and the swing is switched around the vertical axis. May be.

Instead of the endless rotating chains 33a and 34a, an endless rotating belt having grain stem engaging and conveying claws protruding from a plurality of locations, or an endless rotating belt having grain stem holding and transporting projections at a plurality of locations is used. It may be adopted and implemented.
The endless rotating chain 33a and the belt are collectively referred to as a stock-holding / conveying endless belt 33a, and the endless rotating chain 34a
And the belt are collectively referred to as an end-stopping transport endless belt 34a.

The rail supporting portion 27 may be provided on the guide plate mounting member 26 as in the above-described embodiment, or may be provided on various members fixed to the preprocessing unit frame. Therefore, the guide plate mounting member 26 and the like are collectively referred to as the fixing portion 26 of the pre-processing portion 10.

[Brief description of the drawings]

FIG. 1 is a side view of the front of the combine.

FIG. 2 is a front view of a preprocessing unit.

FIG. 3 is a perspective view of a preprocessing unit frame.

FIG. 4 is a schematic plan view of a grain culm conveying device.

FIG. 5 is a plan view of a guide rail mounting structure.

FIG. 6 is a side view of a guide rail mounting structure.

FIG. 7 is a side view of a support member fixing portion.

FIG. 8 is a side view of the guide rail support structure.

FIG. 9 is an explanatory view showing the opening and closing structure of the threshing device upper structure.

[Explanation of symbols]

 Reference Signs List 4 threshing device 4a threshing feed chain 4b handling cylinder 4c threshing grain culm transport guide rail 8a upper structure 8b lower structure 10 preprocessing unit 11a raising device 11b reaper 26 fixing unit 27 rail support unit 33 stock holding and transporting unit 33a stock Original nipping and transporting endless belt 34 Ear-end locking transporting section 34a Ear-end locking and transporting endless strip 36 Guide rail 40 Nipping and transporting guide rail 41 Locking and transporting guide rail 45 Supporting member 46 Mounting part 47a Shaft core

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Ryosuke Hirai 64 Ishizukita-cho, Sakai City, Osaka Prefecture Inside the Kubota Sakai Plant (72) Inventor Makoto Oshiya 64 Ishizukita-cho, Sakai City, Osaka Prefecture Kubota Sakai Manufacturing In-house F-term (reference) 2B076 AA03 BA08 CA11 CA17 2B084 AA01 AC05 BB14 BB39 BF07

Claims (4)

[Claims] 1. A plant holding and conveying unit that raises and processes a planted grain culm by a raising device and reaping process by a reaper, and that acts on the root side of the cultivated cereal stem, and a head lock that acts on the head side. A combine transport configured to be transported by a transport device including a transport unit and supplied to a threshing apparatus, wherein a nipping transport guide rail of the stock-source nipping transport unit and a locking transport of the spike locking transport unit. The guide rail and the same support member are attached to the same support member, and the support conveyance guide rail forms a conveyance path by facing the stock-holding conveyance endless band-shaped body, and the locking conveyance guide rail is engaged with the front end. The working state in which the conveyance path is formed facing the conveyance endless belt, and the nipping conveyance guide rail is separated from the stock nipping conveyance endless belt to open the conveyance operation part of the stock nipping conveyance endless belt, and , Stop conveyance guide rails are configured to be freely tip locking transported away from the endless strip switched between management state to open the delivery action of the tip engaging conveying endless strip operations combine. 2. The supporting member extends from a mounting portion of a pre-processing unit so as to be swingable around a vertical axis of the machine body, and the holding conveyance guide rail and the locking conveyance guide rail at an extending end side. The combine according to claim 1, wherein the combine is configured to swing around the axis and switch between the working state and the management state. 3. A rail supporter for detachably supporting a front end side of the locked conveyance guide rail in a state where the conveyance path is formed, is provided on a fixing part of a preprocessing unit, and the management of the support member is performed. The combine according to claim 1 or 2, wherein the locking conveyance guide rail is detached from the rail support portion by a switching operation to a use state. 4. An upper structure comprising a guide rail for guiding a harvested grain culm from the transport device to a threshing feed chain, the guide rail being supported by the support member, and an upper structure including a handling cylinder of the threshing device and a threshing grain culm transport guide rail, The combine according to claim 2, wherein the combine is connected to a lower structure including a threshing feed chain so as to be capable of swinging and opening and closing.