JPH1014362A - Upper conveyor of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an upper conveying mechanism on the right side for common use for reaping five and six rows and improve the conveying efficiency. SOLUTION: This upper conveying mechanism of a combine harvester is obtained by installing a driving part at the front on the right side of the main machine and arranging a reaping part 3 at the front end on the left side and further a threshing part at the rear position of the reaping part 3. The reaping part 3 is equipped with reaping blade devices for reaping the grain culms and upper and lower conveyors for conveying the grain culms reaped with the reaping blade devices to the side of the threshing part. In this case, the upper conveyor 25 is provided with an upper conveying mechanism 38 on the left side, a central upper conveying mechanism 39 and an upper conveying mechanism 40 on the right side. Furthermore, the upper conveying mechanism 40 on the right side is bisected and formed into a conveyor unit 41 on the front side and a conveying unit 42 on the rear side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine upper transport mechanism.

[0002]

2. Description of the Related Art Conventionally, for example, as one form of a combine for six-row cutting, an operating section is provided at a right front portion of the machine, a cutting section is provided at a left front end section, and a threshing section is provided at a position rearward of the cutting section. A cutting blade device for cutting the culm in the cutting section,
There is an apparatus provided with upper and lower transfer devices for transferring grain stems cut by the cutting blade device to the threshing unit side.

The lower transport device includes a left lower transport mechanism, a center lower transport mechanism, a right lower transport mechanism, and a vertical transport mechanism, and the upper transport device includes a left upper transport mechanism, a central upper transport mechanism, With a right upper transport mechanism,
Each transport mechanism is arranged to face up and down.

In addition, the right upper transport mechanism extends the terminal end to the vicinity of the feed chain provided in the threshing unit, and the left upper upper / lower transport mechanism, the center upper / lower transport mechanism, and the first half of the right upper transport mechanism. The grain culms of each row conveyed by the upper and lower right transport mechanisms are merged at the center, and all the grain culms are transported to the feed chain by the rear half of the right upper transport mechanism and the vertical transport mechanism. Like that.

[0005]

However, the above-mentioned combine still has the following problems.

[0006] In particular, since the length of the right upper transport mechanism is different between the five-row cutting and the six-row cutting, it is necessary to manufacture them separately.

[0007] The upper right transfer mechanism has a large amount of protrusion toward the operation unit provided at the front right side of the machine, and the upper right transfer mechanism does not interfere with the operation unit.
It is necessary to widen the width of the fuselage.

[0008] The first half of the upper right transport mechanism needs a function of transporting the cereal stem toward the rear center portion, while the latter half has a function of transporting rearward and upward. Since the angle is constant, it is not possible to arrange the sheet at an appropriate transport angle as a whole.

[0009]

Therefore, according to the present invention, an operating unit is provided at the right front of the machine, a mowing unit is provided at the left front end, and a threshing unit is provided at a position rearward of the mowing unit. In the combine unit, the cutting unit provided with a cutting blade device for cutting grain culms, and upper and lower transfer devices for transferring grain culms cut by the cutting blade device to the threshing unit side, the upper transfer device is located on the left side. An upper transport mechanism of a combine, comprising an upper transport mechanism, a central upper transport mechanism, and a right upper transport mechanism, wherein the right upper transport mechanism is divided into a front transport body and a rear transport body. Is to be provided.

Further, according to the present invention, the front transport body is disposed substantially in parallel with a lower right transport mechanism provided in a lower transport device disposed below the front transport body, and the rear transport body is provided with an upper transport mechanism. The auxiliary transport device disposed between the lower transport device and the threshing unit is disposed substantially in parallel, the drive mechanism of the lower transport device is linked to the front transport body, and The start end side of the rear carrier is arranged below, and the drive shaft of the front carrier is passed through the start end of the rear carrier upward from below, and the upper end of the drive shaft is moved forward. It is also characterized by its interlocking connection to the terminal side of the body.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

A shown in FIGS. 1 and 2 is a combine for six-row cutting according to the present invention, in which a pair of right and left crawler-type traveling parts 2 and 2 are provided below a body frame 1 and a left side of the body frame 1 is provided. A mowing unit 3 is attached to the front end, a threshing unit 4 is provided immediately after the mowing unit 3, and a straw processing unit 5 is provided immediately after the threshing unit 4. An operation unit 6 is provided, and a grain storage tank 7 is provided immediately behind the operation unit 6. Reference numeral 8 denotes a feed chain provided on the upper left side of the threshing unit 4.

As shown in FIG. 1, the mowing section 3 has a mowing frame 11 mounted on an upper end of a column 10 erected at the left front end of the body frame 1 so as to be vertically rotatable.

The cutting frame 11 is shown in FIGS.
As shown in FIG. 2, a cylindrical rotating support shaft 12 extending in the left-right width direction is horizontally rotatively mounted between the upper ends of a pair of right and left support columns 10, 10 so as to be rotatable around an axis. The cylindrical vertical frame 13 extends forward and downward from the right side, and a middle part of a cylindrical lower horizontal frame 14 extending in the left-right width direction is provided at the lower end of the vertical frame 13 so as to communicate. Along with raising the cylindrical rising frame 15 forward and upward from the left rear portion of the side horizontal frame 14,
A support frame (not shown) is raised upward from the right end of the lower horizontal frame 14 to the front and upper side, and the upper horizontal frame 16 is suspended between the upper ends of the two frames 15, and the middle of the upper horizontal frame 16 While the upper connecting frame 17 which curves upward in a convex manner between the portion and the rear portion of the vertical frame 13 is laid horizontally, a pair of left and right lower portions facing left and right sides of the lower horizontal frame 14 are respectively directed forward. The connecting frames 18, 18 are formed to extend.
19 is a lower carrier support frame.

The cutting frame 11 described above has a structure shown in FIG.
And as shown in FIG. 4, a weeding board 20 for weeding the six-rowed grain culm to be planted, a cereal-stalk-raising device 21 for raising the six-rowed grain culm weeded by each weeding board 20, Grain stalk raking device 22 that rakes the roots of the six-row cereal stems raised by the cereal stalk raising device 21
And a cutting blade device 23 for cutting the roots of the grain stalks scraped by the grain stalk raking device 22, and a lower portion of the six-row grain stalks cut by the cutting blade device 23 to the threshing unit 4 side. Lower transfer device 24
And an upper conveying device for conveying the upper part of the grain culm to the threshing unit 4 side
25, a head transfer device 26 for transferring the head portion of the grain culm, and a feed chain 8 of the threshing unit 4 from the upper and lower transfer devices 25, 24.
An auxiliary transport device 27 for assisting the transfer of the grain culm is provided.

As shown in FIGS. 3 and 4, the weeding board 20
A total of seven pieces are arranged at regular intervals in the width direction.

As shown in FIGS. 3 and 4, the grain stalk raising device 21 includes a total of six raising cases 30 extending vertically in a position immediately behind the weeding plates 20 adjacent to the left and right. It is erected, and a total of six raising drive cases 66 are interposed between the upper part of each raising case 30 and the upper side case 16.

A raising mechanism 31 is provided in the raising case 30, as shown in FIGS. 5, 6, and 8, and the raising mechanism 31 is provided in the raising case 30. At the upper part of the support frame 31b provided, the distal end of the second drive shaft 81 is protruded from the drive case 66 to protrude, and the driving sprocket 31c is mounted at the distal end, while the driven sprocket 31c is driven at the lower part of the support frame 31b. Install 31d, both sprockets
Raise the chain 31e between 31c and 31d, attach a number of raised tines 31a to the raised chain 31e, and the raised tines 31a rotate around the driven sprocket 31d and move upward. Further, while rotating around the driving sprocket 31c, it is raised to advance through the tine advance groove 31f formed on one side edge of the case 30 to raise the cereal stem, and while moving downward, It is configured to retreat. 31g
Is the tension roller, 31h is the tension spring, 31
i is a tine exit guide body and 31k is a tine advance guide body.

Here, the raised tine 31a is integrally formed with a mounting base 31j wider at the base end than the raised tine 31a. The mounting base 31j is raised to attach the mounting pin to the chain 31e.
Installed via 31m.

Moreover, on one side edge of the raising case 30,
As shown in FIGS. 5 and 6, a pair of tine sliding guide bodies 8 are provided.
5, 85 and tine advance adjusting means 86 are provided, and the tine sliding guide body 85 is formed by extending vertically along the tine advance groove 31f, and the inner side surface 85a is raised by the raised tine 31a. The outer side surface 85b is formed along the inner side surface of the raised case 30, and the outer side surface of the tine sliding guide body 85 is formed along the base end portion and the mounting base portion 31j.
85c is formed so as to be located outside the tine advance groove 31f of the raising case 30. 87 is a guide body mounting bolt,
88 is a nut.

As shown in FIGS. 5 and 6, the tine advance / retreat adjusting means 86 includes a contact member 89 contacting the base end surface 31j 'of the mounting base 31j of the raising tine 31a, and a contact member 89. An advancing / retracting positioning body 91 for adjusting the advancing / retracting position along the elongated holes 90, 90 formed in the outer wall of the raising case 30 is provided, 92 is a connecting bolt, and 93 is an adjusting bolt.

The contact body 89 extends in the vertical direction and is formed in a U-shaped cross section, and its front and rear end faces 89a, 89a are brought up against the base end face 31j 'of the mounting base 31j of the tine 31a. By contacting and adjusting the advance / retreat position of the advance / retreat positioning body 91 via the adjustment bolt 93, the tine 31a is raised via the contact body 89 and the advance / retreat adjustment is possible.

Moreover, the front and rear end surfaces 89a, 89a of the contact body 89 abut against the inner end surfaces 85d, 85d of the tine sliding guides 85, 85, thereby restricting the maximum advance position of the raised tine 31a. Like that.

In this way, the mounting base 31j of the raising tine 31a is prevented from being pressed against the tine sliding guides 85, 85 and locked by excessive adjustment of the advance position.

Here, the tine sliding guide body 85 is formed of a synthetic resin such as ultra-high molecular weight polyethylene so as to reduce weight, increase durability, reduce noise, reduce manufacturing costs, and raise the case.
The 30 has been simplified.

Moreover, the tine sliding guide body 85 raises the outer end face 85c and is positioned outside the tine advance groove 31f of the case 30, so that the metal fin case 30 wears the raising tine 31a. The tine sliding guide body 85 acts gently on the grain stem, and maintenance such as replacement of a pair of tine sliding guide bodies 85 formed in two parts can be performed easily.

As shown in FIG. 7, a reinforcing connector 97 is interposed between the upper ends of the raising cases 30, 30 adjacent to each other on the left and right sides. 30 stiffness is increased. Therefore, the size and weight of the raising case 30 can be reduced.

As shown in FIG. 3 and FIG. 4, the grain stalk scraping device 22 has a tine-attached scraping belt 32 and a star wheel 33 vertically opposed to each other at a position immediately behind each of the raising cases 30. Have been placed.

As shown in FIGS. 3 and 4, the lower transport device 24 includes a left lower transport mechanism 34 that clamps the lower part of the two-row grain culm on the left side and transports it to the inner rear junction P. A central lower transport mechanism 35 that clamps the lower part of the two-rowed grain culm in the center and transports it to the inner rear junction P, and a lower part of the two-row grain culm on the right side and merges the inner rear. A right lower transport mechanism 36 for transporting to the section P; and a vertical transport mechanism 37 for transporting to the feed chain 8 by sandwiching the lower part of the cereal culm transported by the transport mechanisms 34, 35, 36 and joined at the junction P. The vertical transport mechanism 37 behind the junction P is shared regardless of the number of cutting lines.

Therefore, the relative positional relationship between the vertical transport mechanism 37 and the threshing unit 4 can be kept constant, and good connection to the feed chain 8 provided in the threshing unit 4 can be ensured.

The transport mechanisms 34, 35, 36 are basically composed of transport chains 34a, 35a, 36a and transport chains 34a, 35a, 36a.
Clasps 34 placed opposite to the culm transport paths 35a and 36a
b, 35b, and 36b, and the vertical transport mechanism 37 is similarly configured.

Here, as shown in FIGS. 10 to 12, the clamping body 34b is attached to a fixing plate 100 fixed to the cutting frame 11.
A connecting body 101 formed in a side view portal type is attached to the transport chain 34a so as to be able to move forward and backward, and a mounting body 102 formed in a side view portal type is attached to the connecting body 101 so that the sliding position can be adjusted vertically. A pair of clamping rail support arms 103, 103 are slidably mounted on the mounting body 102 in the direction in which the clamping rail 104 extends between the ends of the clamping rail support arms 103, 103. 105,106 are position adjustment bolts, 107,
108 is a nut, 109 and 110 are long holes for position adjustment, 111 is a buffer spring, and 112 and 113 are spring receivers.

As described above, since the clamping rail 104 is mounted so as to be adjustable in position, the transport chain 34 for clamping the grain stalks cooperatively even under conditions having manufacturing and assembly errors.
a can be set at an appropriate position with respect to a, and the conveying performance of the grain stalk can be improved.

The holding members of the other transport mechanisms 35, 36, and 37 are also configured in the same manner as the holding member 34b so that the same operation and effect can be obtained.

The height of the projections of the transport chains 34a, 35a, 36a, 37a of the transport mechanisms 34, 35, 36, 37 is increased as the transport speed increases, thereby improving the transport capacity. be able to.

As shown in FIGS. 3 and 4, the upper conveying device 25 is provided with a left upper conveying mechanism 38 for picking up the upper part of the two-row grain culm on the left side and conveying the culm to an inner rear junction P. The upper central transport mechanism 39 which lifts the upper part of the two-row grain culm and transports it to the inner rear junction P, and the upper right of the two-row grain culm and lifts it to the inner rear junction P And a right upper transfer mechanism 40 for transferring.

Further, the upper right transport mechanism 40 is formed by dividing the front transport body 41 and the rear transport body 42 into two parts.

A large number of transport tines 38a, 39a, 41a are attached to the transport mechanisms 38, 39 and the front / rear transport body 41 so as to be able to reciprocate in the front-rear direction, and the transport tines 38a, 39a,
41a is attached so as to advance when moving backward and retreat when moving forward, and the rear carrier 42 has the same configuration.

In this way, the front-side transport body 41 is manufactured, for example, for five-row cutting and six-row cutting, respectively, in accordance with the number of cutting strips, and the rear-side transport body 42 depends on the number of cutting strips. And can be shared.

Therefore, similarly to the vertical transport mechanism 37 of the lower transport device 24, the relative positional relationship between the rear transport body 42 and the threshing unit 4 can be kept constant, and the feed chain provided in the threshing unit 4 can be maintained. In this way, it is possible to favorably secure the inheritability of the cereal stem to the cultivar 8.

In addition, since the front transport body 41 and the rear transport body 42 are formed separately, the rear transport body 42 is arranged so that the amount of protrusion toward the operation unit 6 is reduced. Thus, the lateral width of the body can be reduced.

Further, the front carrier 41 and the rear carrier 42 are
By setting the transfer angle so that an appropriate transfer function can be obtained, transfer efficiency can be improved.

The upper left transport mechanism 38 is a lower left transport mechanism 34, and the upper central transport mechanism 39 is a lower central transport mechanism 35.
The front transport body 41 includes a lower right transport mechanism 36 and a rear transport body
Reference numeral 42 is disposed so as to be vertically opposed to the vertical transport mechanism 37 so that the upper and lower portions of the grain stalk are securely held and transported.

Here, as shown in FIG. 3, the front transport body 41 is arranged substantially in parallel with the right lower transport mechanism 36 provided in the lower transport device 24 disposed below the front transport body 41.
The nipping position of the cereal stem by the front transport body 41 and the lower right transport mechanism 36 is kept constant, and the transport posture of the cereal stem can be ensured well.

As shown in FIG. 3, the rear transport body 42 is disposed substantially in parallel with an auxiliary transport device 27 described below disposed between the upper and lower transport devices 25, 24 and the threshing unit 4. In cooperation with the auxiliary transport device 27, the grain stalk can be smoothly delivered to the feed chain 8.

In addition, below the end side of the front carrier 41,
The starting end side of the rear carrier 42 is arranged, and the rear carrier 42 is smoothly and reliably positioned in the middle of the grain culm that is transported and held between the front carrier 41 and the lower right transport mechanism 36. It is possible to carry over to inherit.

Further, the positional relationship of the transport tines 38a, 39a, 41a, 42a at the junction P of the upper transport device 25 is shown in FIG.
As shown in the figure, the transport tine 38a of the upper left transport mechanism 38 and the transport tine 41a of the front transport body 41 are arranged in a left-right facing state, and the leading ends are overlapped in the front-rear direction. The transport tine 39a of the central upper transport mechanism 39 is disposed above the transport tine 38a, 41a, while the transport tine 42a of the rear transport body 42 is disposed below the transport tine 38a, 41a.

By arranging the rear tine below the front tine as described above, the cereal stalks conveyed in a state of being sandwiched by the lower conveying mechanisms 34, 35, and 36 are provided. The transport tine located at the rear can smoothly and reliably inherit and transport the middle part of the stalk, and it is possible to prevent the turbulence of the grain stem from being transported.

As shown in FIG. 13, the rear transport body 42 is provided with a pair of tine sliding guides 94, 94 at one side edge of the transport case 42b. 94
Is a tine advance groove formed on one side edge of the transfer case 42b.
It is formed by extending in the front and rear direction along 42c,
The inner side surface 94a is formed along the mounting portion and the mounting base 42d of the transport tine 42a formed similarly to the raised tine 31a,
The outer side surface 94b is formed along the inner side surface of the carrying case 42b, and further, the outer end surface 94c of the tine sliding guide body 94 is formed.
Is formed outside the tine advance groove 42c of the transfer case 42b. 42e is a transport chain, 42f is a mounting pin, 95 is a guide body mounting bolt, and 96 is a nut.

The tine slide guide body 94 is formed of the same material as the tine slide guide body 85 so that the same operation and effect as the tine slide guide body 85 can be obtained. . Further, the tine sliding guide body 94 includes a left upper transport mechanism 38, a central upper transport mechanism 39, and a front transport body 41.
, Respectively, so that the same operation and effect as those of the rear transport body 42 can be obtained.

As shown in FIGS. 3 and 4, the spike transport device 26 includes a left spike transport mechanism 43, a center spike transport mechanism 44, and a right spike transport mechanism 45. 43, 44, 45 are located immediately behind the star wheel 33, above the left upper transport mechanism 38, the central upper transport mechanism 39, and the front transport body 41, and each of these grain culm transport paths a,
Each transport mechanism 38, 39 and the front transport body with b and c interposed
It is arranged at a position facing 41, so that the spikes of the grain stems for two rows are conveyed.

And, these ear tip transport mechanisms 43, 44, 45
Of the six raised drive cases 66 described above, the three raised drive cases 66 extend downward from the three raised drive cases 66 and are linked and connected to the spike transport drive case 68. Into, the first drive shaft 67 that extends vertically is inserted,
The upper end of the first drive shaft 67 is operatively connected to the upper horizontal transmission shaft 65 via bevel gears 67a, 65a, and the upper drive shaft 67 is raised at the lower end of the first drive shaft 67 to move the second drive shaft 81 to the bevel gear 67.
b, 81a, and further, the front drive first drive shaft 69 is extended downward from the first drive shaft 67 toward the inside of the head transfer drive case 68. At the lower end of the shaft 69, one end of the tip drive second drive shaft 82 is connected to the bevel gears 69a, 82a.
, And the right-hand ear tip transport mechanism 45 is interlockingly connected to the other end of the same ear tip transport second drive shaft 82.

As shown in FIGS. 8 and 9, the right-hand ear transport mechanism 45 includes a
c through the bracket 98, and
c and the tip transport second drive shaft 82 in the tip transport drive case 68.
The rotary plate 45b is attached to the lower end of the second drive shaft 82, and the base end of the plurality of tip tines 45a is connected to the peripheral edge of the rotary plate 45b via a link 45f. And is mounted swingably around a pivot pin 45d parallel to the second drive shaft 82, and an advance / retreat guide body 45e is attached to the ceiling wall of the tip transfer case 45c via a guide body mounting bracket 45g. Each tip tine 45a is moved rearward by attaching it close to the transport drive case 68 and sliding the base end face of each tip tine 45a on the arc-shaped peripheral surface formed on the guide member 45e. Sometimes guides advance, and
It is configured to guide retreat when moving forward. 45h is a link connecting pin, and 45j is a case connecting bolt.

As described above, each of the ear tip transport mechanisms 43, 44, 45
Each of the drive shafts 67 and 69 narrows the grain culm conveyance path because the first and second drive shafts 69 and 69 are driven by the first drive shaft 69 extending downward from the first drive shaft 67. Therefore, smooth and reliable transport of the grain culm can be ensured, and the driving structure of each ear tip transport mechanism 43, 44, 45 can be simplified.

Further, since the advance / retreat guide body 45e is disposed close to the tip transport drive case 68 surrounding the tip transport first and second drive shafts 69, 82, the tip transport tine 45a Even if an overload acts on the tip, the strength of the advance / retreat guide body 45e can be ensured, and the weight of the advance / retreat guide body 45e can be reduced.

The left and right ear tip transport mechanisms 43 and 44 have basically the same configuration as the right and left ear tip transport mechanism 45 described above.
In the reciprocating direction, due to the positional relationship with the upper transport mechanisms 38 and 39,
The opposite direction.

As shown in FIGS. 3 and 4, the auxiliary transport device 27 is disposed between the terminal side of the vertical transport mechanism 37 and the terminal side of the rear transport body 42, and the starting end of the feed chain 8. The auxiliary transport device 27 is arranged close to the side portion 8a, and the auxiliary transport device 27 is configured in the same manner as the transport mechanisms 34, 35, 36, and 37 of the lower transport device 24. They are delivered and delivered.

As shown in FIGS. 14 and 15, the auxiliary transport device 27 basically includes a transport chain 27a and a clamping body 27 disposed opposite to the grain culm transport path of the transport chain 27a.
b, and the clasping body 27b is
It has the same configuration as b. Numeral 120 denotes a frame for supporting the clamping body.

As shown in FIGS. 14 and 15, the auxiliary transport device 27 has a first transport guide body 121 and a second transport guide body 12 mounted on a support frame (not shown) of the transport chain 27a.
The first transport guide body 121 extends from the support frame toward the start end side 8a of the feed chain 8, and the front end side 121a is disposed along the vicinity of the inside of the feed chain 8. On the other hand, the second transport guide body 122
The support frame extends toward the starting end 8a of the feed chain 8, and the leading end 122a is located immediately before the starting end 8a of the feed chain 8.

In this manner, as shown in FIG. 15, the start end of the feed chain 8 is formed by the distal end portion 121a of the first transport guide body 121 and the distal end portion 122a of the second transport guide body 122 in plan view. Grain stalks which are conveyed by sliding on both conveying guides 121 and 122 are sandwiched between the side portions 8a so as to be reliably transferred to the starting end side 8a of the feed chain 8.

In addition, since the first transport guide body 121 has the tip side 121a disposed along the vicinity of the inside of the feed chain 8, the cutting height is changed by vertically moving the cutting unit 3 up and down. Therefore, even when the relative position between the auxiliary transport device 27 and the feed chain 8 changes, or when the transport amount is small at the time of starting the cutting of the grain, the auxiliary transport device 27 and the feed chain 8
The first transport guide body 121 intervenes between the first and second transport guide bodies 121 to ensure a guiding function. In this case as well, the grain can be delivered to the feed chain 8 reliably.

Also, the holding body support frame 120 has a structure shown in FIG.
As shown in FIGS. 4 and 15, the cereal stem pressing rod 123 and the cereal stem pressing plate 124 are mounted via mounting brackets 125.

The culm holding rod 123 pivotally supports the base end 123a of the mounting bracket 125 so as to freely swing up and down around an axis in the left-right width direction substantially perpendicular to the feed chain 8 conveying direction. 8 extends from the upper front position of the start end side portion 8a toward the start end side portion 8a, and extends directly above the upper transfer side portion 8h of the feed chain 8 to the upper transfer side portion 8h.
It extends rearward along with.

In this manner, the cereal culm transferred to the starting end side portion 8a of the feed chain 8 is pressed from above by the cereal culm holding rod 123 by its own weight, and the cereal culm is moved upward by the upper conveying side portion 8h of the feed chain 8. Prevents falling off more.

The culm holding plate 124 is a culm holding rod.
At a position in front of and below the base mounting position of the base 123, a boss 124a mounted on the base is rotatably mounted on a pivot 126 mounted on the mounting bracket 125, and the boss 124a is rotated by a winding spring 127 as shown in FIG. In the side view shown in FIG. 5, the tip 124b of the grain culm holding plate 124 is extended to the upper part of the starting end 8a of the feed chain 8 by clockwise rotation.

In this manner, the cereal culm conveyed while sliding on the first and second conveying guide bodies 121 and 122 is strongly pressed by the cereal culm pressing plate 124, and the auxiliary conveying device 27 moves the cereal culm to the feed chain 8. The culm to be delivered is the first and second transport guide body 12
1,122 Prevents falling off from above.

As shown in FIGS. 14 and 15, a clogging sensor 128 is mounted on the mounting bracket 125 so as to be able to adjust the vertical position, and the clogging sensor 128 has a detection switch 129 mounted on the mounting bracket 125. Attach the terminal 130 to the base end of the grain stem holding plate 124,
The terminal 130 turns on the detection switch 129 when the switch 4 is rotated upward beyond a predetermined position.

That is, the first and second transport guide bodies 121 and 12
2 If the grain stalk is transported above a predetermined amount, the detection switch 129 is turned on, and the result is notified to the operator by a buzzer, lamp, etc. The notification is made by the notification means.

Therefore, the operator can take measures such as stopping the engine E and immediately clearing the transport jam, and as a result, as a result, the first and second transport guides 121 and 12 can be used.
Therefore, it is possible to prevent a large load from acting on the transport guide 2 from acting on the transport guide bodies 121 and 122, and to prevent the transport guide bodies 121 and 122 from being damaged.

As shown in FIG. 16, the clogging sensor for detecting such a conveyance clogging is also attached to the left lower conveyance mechanism 34 and the center lower conveyance mechanism 35.

That is, at the position where the terminal end of the lower left transport mechanism 34 and the terminal end of the front transporter 41 are close to and opposed to each other, a confluent portion P where the six-row grain stems converge is formed. At the rear end of the transport chain support frame 34c of the transport mechanism 34, a grain stem winding prevention plate for preventing the grain stem from winding.
The clogging sensor 131 is mounted on the culm winding prevention plate 131.

The clogging sensor 132 has a detection switch 133 mounted on the cereal stem winding prevention plate 131 via the sensor mounting bracket 134 toward the junction P, while the detection switch 133 is located inside the cereal stem winding prevention plate 131. Attach the base end of the detection terminal 135 via the sensor mounting bracket 134, and
5 is curvedly extended along the periphery at the inner position of the cereal stem winding prevention plate 131, and the tip 135a of the detection terminal 135 is disposed between the detection switch 133 and the junction P. .

As described above, when the grain stalk is clogged at the junction P, that is, when the grain stalk acts on the tip 135a of the detection terminal 135, the detection switch 133 is turned on to detect the detection. The result is notified to the operator by a notification means such as a buzzer or a lamp.

Accordingly, the operator can take measures such as stopping the engine E and eliminating clogging of the grain stalk at the junction P. As a result, the upper and lower transfer devices 25, 24
It is possible to prevent a large load from acting on the components of the transport clogging due to jamming.
25, 24 can be prevented from being damaged.

In addition, the detection terminal 135 is a stalk wrap prevention plate.
Since it is arranged at the inner position of 131, the stalk wrapping prevention plate 131 can prevent the stalks from being wrapped around the detection terminal 135 to cause malfunction, and the detection terminal 13
5 can accurately detect clogging of the culm during transport.

At a position where the terminal end of the lower center transport mechanism 35 and the middle part of the front transport body 41 are close to each other and opposed to each other, a confluence portion Q where the four-row grain culm converges is formed. At the rear end of the transport chain support frame 35c of the transport mechanism 35, a cereal wrapping prevention plate 136 for preventing cereal wrapping is mounted, and a clogging sensor 137 is mounted on the cereal wrapping prevention plate 136. ing.

The clogging sensor 137 mounts the detection switch 138 on the cereal stem winding prevention plate 136 toward the confluence portion Q via the sensor mounting bracket 139, and moves the detection switch 138 to the inside position of the cereal stem winding prevention plate 136. Attach the base end of the detection terminal 140 via the sensor mounting bracket 139, and
0 is curvedly extended along the periphery at the inner position of the grain wrapping prevention plate 136, and the tip 140a of the detection terminal 140 is disposed between the detection switch 138 and the junction Q. .

As described above, when the grain culm is jammed at the junction Q, that is, when the grain culm acts on the tip 140a of the detection terminal 140, the detection switch 138 is turned on to detect the detection. The result is notified to the operator by a notification means such as a buzzer or a lamp.

Therefore, also in this case, the same operation and effect as the above-described clogging sensor 132 can be obtained.

As shown in FIG. 16, a clogging sensor 141 is attached to the transport chain support frame 35c of the lower central transport mechanism 35 toward the clamping rail 104 provided on the clamping body 34b of the lower transport mechanism 34. And the clogging sensor 141 is
Light is applied to the light reflector 142 attached to the rear end of the clamping rail 104, and the operation in which the clamping rail 104 is separated from the transport chain 34a by a certain distance or more is detected as a transport jam.
The detection result is notified to the operator by a notification means such as a buzzer or a lamp.

Accordingly, also in this case, the same operation and effect as those of the above-described clogging sensors 132 and 137 can be obtained.

A jam sensor 141 for detecting the operation of a clamping rail (not shown) provided on the vertical transport mechanism 37.
Can be provided separately. In this case, the vertical transport mechanism
The conveyance jam of 37 can be detected, and the result can be notified to the operator by a notification means such as a buzzer or a lamp.

As shown in FIGS. 3 and 12, the rotation support shaft 12 is disposed at substantially the same height as the starting end 8a of the feed chain 8 and has the same height. Inside, Figure 1
As shown in FIG. 1, each device 2 as each drive unit of the mowing unit 3
A cutting drive shaft 50 for driving 1,22,23,24,25,26,27 is inserted therethrough. Reference numeral 58 denotes an input pulley attached to the right end of the mowing drive shaft 50, and reference numeral 59 denotes a clutch unit, which enables the power to be transmitted to and from the vertical transmission shaft 60 inserted into the vertical frame 13. 50b and 60a are bevel gears.

Therefore, the mowing unit 3 around the pivot 12
Can be raised while being moved largely forward, and a large gap between the operating unit 6 and the reaping unit 3 can be secured, so that the operator sitting on the operating unit 6 can easily visually recognize the lower part of the reaping unit 3. can do.

A feed chain drive case 51 is detachably attached to the right end of the rotation support shaft 12. A power take-out shaft 52 and an intermediate shaft are mounted in the feed chain drive case 51.
53 and the feed chain drive shaft 54 are suspended.

Further, the power take-out shaft 52 has one side end 52a protruding from the feed chain drive case 51 into the rotary support shaft 12, and the same side end 52a and one side end 50a of the cutting drive shaft 50. Are spline-fitted into a cylindrical connecting body 55 to be interlocked and connected.

Accordingly, the work for attaching and detaching the feed chain drive case 51 can be performed easily, and the cutting drive shaft 50 can be easily mounted.
The shaft core between the power take-off shaft 52 and the power take-out shaft 52 can be surely aligned by the connecting body 55, so that good transmission efficiency can be ensured.

A speed change mechanism 56 is provided between the power take-out shaft 52 and the intermediate shaft 53.
A large-diameter gear 52b and a small-diameter gear 52c are mounted on the power take-out shaft 52, and a shift gear 53a selectively meshing with one of these gears 52b, 52c is mounted on the intermediate shaft 53 so as to be slidable in the axial direction. A speed changeover lever 56a attached to the outside of the feed chain drive case 51 is interlocked to the 53a via a shift fork 56b. 56c is a fork support rod, and 56d is a lever support shaft.

Then, the intermediate shaft 53 and the feed chain drive shaft
A transmission chain 57 is wound between the transmission chain 54 and the sprockets 53b and 54a, and one end 54b of the feed chain drive shaft 54 projects outside from inside the feed chain drive case 51,
The start end 8a of the feed chain 8 is connected to the same end 54b via a sprocket 54c. 8b is a feed chain starting end side support shaft, 8c is a feed chain starting end side sprocket, 8d is a feed chain tension roller, 8e is a tension roller supporting arm, 8f is a tension roller tension spring, and 8g is a feed chain supporting frame.

Therefore, the auxiliary transport device 27 provided in the mowing unit 3
Can be easily and reliably synchronized with the feed speed of the feed chain 8, and the transfer of the grain stalk from the cutting unit 3 to the threshing unit 4 can be performed efficiently.

Further, by appropriately operating the shift changeover lever 56a of the shift changeover mechanism 56 in accordance with the cutting posture of the grain stem, appropriate threshing by the threshing unit 4 can be ensured.

That is, when the posture of the culm when the culm is harvested is in the lying state, the spike side may be conveyed later than the stock root side. When the transport speed and the transport speed of the feed chain 8 are synchronized, for example, when the transport speed ratio between the auxiliary transport device 27 and the feed chain 8 is set to 4: 3, the culm transported and supplied to the threshing unit 4 by the feed chain 8 is constant. Transported in a thick layer state,
It becomes slightly deep.

Therefore, in such a case, by changing the feed speed of the feed chain 8 to the high speed side, for example,
The transfer speed ratio between the auxiliary transfer device 27 and the feed chain 8 is set to 1:
When it is set to 1, the layer of the grain culm conveyed and supplied to the threshing unit 4 can be thinned to have an appropriate handling depth, and the load on the handling cylinder 4a provided in the threshing unit 4 can be reduced.

Further, the feed chain drive case 51 can be pivotally supported on the support column 10 coaxially with the rotary support shaft 12.

In this case, the load of the mowing unit 3 does not act on the feed chain drive case 51, and the feed chain drive case 51 can be protected.

As shown in FIGS. 17 and 18, an auxiliary and rear transport drive case 62 is provided on the upper portion of the vertical frame 13.
Is formed by extending to the left side, and the auxiliary transport device 27 and the rear transport body 42 are connected to the auxiliary and rear transport drive case 62 in an interlocking manner.

As shown in FIGS. 17, 19 and 21, the auxiliary and rear transport first drive shaft 61 and the auxiliary and rear transport second drive shaft are provided in the auxiliary and rear transport drive case 62.
70, and one end of the first drive shaft 61 is linked to the vertical transmission shaft 60 via bevel gears 61a and 60b.
One end of the auxiliary and rear transport second drive shaft 70 is linked to the other end via bebe gears 61b and 70a, and the transport chain 27a of the auxiliary transport device 27 is connected to the auxiliary and rear transport second drive shaft 70 by a sprocket. 70b and the rear carrier 42
Are linked to each other via a sprocket 70c.

In this way, the auxiliary transport device 27 can be driven irrespective of the rotation support shaft 12 so that the position of the auxiliary transport device 27 can be set arbitrarily.

In addition, the driving of the auxiliary transfer device 27 is
Since it is taken out from 60, the speed reduction to the auxiliary transfer device 27 can be performed stepwise by setting the number of teeth of a plurality of bevel gears, and the reduction ratio can be reduced.

As shown in FIGS. 19 and 20, a lower right transport drive case 115 is protruded from the lower portion of the vertical frame 13 so that the vertical transport drive case 115 is moved upward from the right lower transport drive case 115 to the upper left side. A case 116 is protruded in a bifurcated manner, a front transport drive case 117 is protruded in a bifurcated manner toward the upper right side, and a shaft case 118 is extended upward from the front transport drive case 117. The upper end of the shaft case 118 is communicated with the terminal side of the front carrier 41, which is passed through the start end of the rear carrier 42 and overlaps the start of the rear carrier 42. Has been established.

In this manner, the end side of the front carrier 41 and the start end of the rear carrier 42 can be vertically overlapped, and the front carrier 41 to the rear carrier 42 In addition to ensuring smooth and reliable transfer of grain culm,
The front transport drive case 117 and the shaft case 118 can easily and compactly support the drive shaft of the front transport body 41 and reduce the width of the support in the width direction.

Then, the right lower transport drive shaft 71 is inserted into the right lower transport drive case 115,
One end of 71 is linked to the vertical transmission shaft 60 via bevel gears 71a and 60c, and the other end of the right lower transfer drive shaft 71 is linked to the transfer chain 36a of the lower right transfer mechanism 36 via a sprocket 71b. I have.

In the vertical transport drive case 116, the vertical transport first drive shaft 73 and the vertical transport second coaxial 74 are inserted, and one end of the vertical transport first drive shaft 73 is connected to the base of the right lower transport drive shaft 71. And one end of the vertical transport second drive shaft 74 is connected to the other end of the vertical transport first drive shaft 73 via bevel gears 73a and 71c.
b, 74a and the other end of the second vertical drive shaft 74, the transfer chain 37a of the vertical transfer mechanism 37 is connected to the sprocket 74b.
Are interlocked and linked.

In the front transfer drive case 117, the front transfer first drive shaft 119 and the front transfer second drive shaft 72 are inserted, and one end of the front transfer first drive shaft 119 is connected to the right lower transfer drive shaft.
Interlockingly connected to the middle of 71 via bevel gears 119a, 71d,
The other end of the front transport first drive shaft 119 is connected to the front transport second drive shaft.
One end of 72 is interlocked and connected via bevel gears 119b and 72a, and the other end of the front conveyance second drive shaft 72 is interlocked and connected with the tine conveyance chain 41b of the front conveyance body 41 via a sprocket 72b.

As described above, since the front transport body 41 is linked to the front transport drive case 117 branched from the right lower drive case 115 which is the drive mechanism of the right lower transport mechanism 36, the front transport body 41 is separately provided. There is no need to newly provide a drive mechanism for driving the transport body 41, and the drive mechanism can be simplified.

Further, as shown in FIG. 19, the lower horizontal frame 14 communicated with the lower end of the vertical frame 13 has a horizontal cylinder 14a integrally formed at the lower end of the vertical frame 13 and the left and right sides of the horizontal cylinder 14a. Left and right connection pipes 14b, 14 detachably connected to side ends
c, and one of the left and right connection pipes 14b, 14c can be freely replaced for the five-row cutting and the six-row cutting, and the horizontal cylinder 14a, the vertical frame 13, and the pivot 12 are The mowing and the six-row mowing are shared. 60d and 63a are bevel gears.

The vertical transport drive case 116 mounted on the vertical frame 13 and the vertical transport mechanism 37 interlockingly connected to the vertical transport drive case 116 also share the use of the five-row cutting and the six-row cutting.

After all, in the reaper 3 according to the present embodiment,
Each transport mechanism and the reaping frame 11 on the rear side of the junction P,
The fifth-row cutting and the sixth-row cutting are shared so that the relative positional relationship with the threshing unit 4 is constant, and the front side of the junction P is freely replaceable with a five-row or six-row cutting dedicated member. .

In the reaping section 3 for six-row cutting configured as described above, the upper transport mechanisms 38 and 39 and the front transport body 41 are used.
In this way, two grain culms are transported in each grain culm transport path, and the grain culm can be transported smoothly and reliably.

Next, a power transmission mechanism B for transmitting power from the engine E mounted on the body frame 1 to each device provided on the mowing unit 3 will be described with reference to FIG.

That is, the power transmission mechanism B has the following main power transmission paths as shown in FIG. Engine E → transmission section M → mowing drive shaft 50 → vertical transmission shaft 60 → lower horizontal transmission shaft inserted in lower horizontal frame 14
63 → the rising transmission shaft 64 inserted in the rising frame 15 → the upper horizontal transmission shaft 65 inserted in the upper horizontal frame 16 → the raising first driving shaft 67 inserted in the raising driving case 66 → the raising second driving Axis 81 → grain stem raising device 21. In addition, the tip drive first drive shaft 69 which is inserted into the tip transfer drive case 68 and extends downward from the drive shaft 67 → the tip drive second drive shaft 82 →
Ear transfer device 26.

There are the following auxiliary power transmission paths derived from the mowing drive shaft 50. Mowing drive shaft 50 → power take-out shaft 52 → speed changeover mechanism 56 → feed chain drive shaft 54 →
Feed chain 8.

There are the following auxiliary power transmission paths derived from the vertical transmission shaft 60. The vertical transmission shaft 60 → the auxiliary and rear transport first drive shaft 61 → the auxiliary and rear transport second drive shaft 70 → the auxiliary transport device 27 and the rear transport body. The vertical transmission shaft 60 → the right lower transfer drive shaft 71 → the right lower transfer mechanism 36 → the grain squeezing device 22. Right lower transport drive shaft 71 → front transport first drive shaft 119 → front transport second drive shaft 72 → front transport body 41. Right lower transport drive shaft 71 →
Vertical transport first drive shaft 73 → vertical transport second drive shaft 74 → vertical transport mechanism
37.

There are the following auxiliary power transmission paths derived from the lower horizontal axis 63. Lower horizontal transmission shaft 63 → Cutting blade drive shaft 7
5,75 → cutting blade device 23,23.

There are the following auxiliary power transmission paths derived from the rising transmission shaft 64. Rising transmission shaft 64 → upper left ・
Lower transport drive shaft 76 → left upper / lower transport rise shaft 77 → left upper / lower transport mechanism 38, 34.

The transmission section M is linked to the traveling drive transmission section 78 via a traveling drive transmission mechanism 79, and is connected via the handling cylinder 4a provided on the threshing section 4 and the handling cylinder drive transmission mechanism 80. Linked and linked.

FIG. 22 shows a reaper 3 as another embodiment, and the reaper 3 is a reaper 3 for the six-row cutting.
The basic configuration is the same, but it is configured for five-row cutting.

The central upper transport mechanism 39 is arranged so that the grain culm transport path is substantially parallel to the front-rear center line of the machine body, and is located immediately above the central upper transport mechanism 39 at the central spike transport mechanism 44.
And the transport tines 39 of both transport mechanisms 39 and 44
a, 44a are in the same direction, and above the left upper transport mechanism 38 and the front transport body 41, and with the left upper transport mechanism 38 and the front transport sandwiching each grain culm transport path. The left and right ear tip transport mechanisms 43 and 4 are located at positions facing the body 41, respectively.
5 and the transport tines 38a and 43a of the left upper transport mechanism 38 and the left ear transport mechanism 43 are set in opposite directions, and the front transport body 41 and the right ear transport mechanism 45 are arranged in opposite directions. The traveling direction of each of the transport tines 41a, 45a is the opposite direction.

In this way, each of the spike transport mechanisms 43, 44, 45
Can transport the spikes of the cereal stem, and can cooperate with the upper and lower conveyors 25 and 24 to smoothly and reliably transport the cereal stem. Case
It is possible to prevent the grain stalk from being caught on the inner peripheral portion of the thirty.

In particular, in the cutting section 3 for the five-row cutting, grain culms are transported two by two in each culm transport path of the left upper transport mechanism 38 and the front transport body 41, and the grain culm transport of the central upper transport mechanism 39 is performed. In this case, a single grain culm is transported along the road, and in this case, the central upper transport mechanism 39 and the central head tip transport mechanism 44 arranged thereover cooperate to smoothly and reliably transport the single grain culm. Can be transported.

[0121]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, the upper transport device includes a left upper transport mechanism, a central upper transport mechanism, and a right upper transport mechanism, and the right upper transport mechanism includes a front transport body and a rear transport body. Since the front carrier is formed in two parts, the front carrier is adapted to the number of cutting streaks, for example, the one for five-cutting and the one for six-cutting are manufactured, and the rear carrier is the number of cuttings. Regardless, they can be shared.

Further, since the front carrier and the rear carrier are formed separately, the rear carrier is arranged so that the amount of protrusion to the driving unit side is reduced, so that the body of the machine is reduced. The left-right width can be shortened.

Furthermore, the transport efficiency can be improved by setting the transport angle of the front transport body and the rear transport body so that an appropriate transport function can be obtained.

According to the second aspect of the present invention, the front transport is disposed substantially in parallel with the lower right transport mechanism provided in the lower transport device disposed below the front transport. The pinching position of the cereal stem by the body and the lower right transport mechanism can be kept constant, and the transport posture of the cereal stem can be ensured well.

Since the rear carrier is arranged substantially in parallel with the auxiliary carrier disposed between the upper / lower carrier and the threshing unit, the rear carrier cooperates with the auxiliary carrier to cope with the grain. The culm can be smoothly delivered to the feed chain.

Further, by arranging the start end of the rear carrier below the terminal end of the front carrier, the culm transported and held between the front carrier and the lower transport mechanism is reduced. The intermediate part can be smoothly and reliably inherited and transported by the rear transport body.

According to the third aspect of the present invention, since the front transport body is interlockedly connected to the drive mechanism of the lower transport device, it is not necessary to newly provide a separate drive system, and the drive system can be simplified. The driving position of the front transport body and the lower transport device can be substantially the same position, and the rear of the junction of the lower transport device can be used for both the fifth-row cutting and the sixth-row cutting.

According to the fourth aspect of the present invention, the starting end of the rear transport is disposed below the end of the front transport, and the driving of the front transport is provided at the starting end of the rear transport. The upper end of the drive shaft is interlocked with the end side of the front transport body by passing the shaft upward from below, so that the end side of the front transport body and the start end side of the rear transport body. Can be polymerized in the up-down direction, and the transfer of the grain culm from the front carrier to the rear carrier can be performed smoothly and reliably.

In addition, since the drive shaft of the front carrier is penetrated upward from below at the start end of the rear carrier, the support of the drive shaft of the front carrier is easy and compact. By doing so, it is possible to reduce the width dimension of the support portion.

[Brief description of the drawings]

FIG. 1 is a side view of a combine according to the present invention.

FIG. 2 is a front view of the combine.

FIG. 3 is a side view of the reaper.

FIG. 4 is a plan view of the cutting unit.

FIG. 5 is a front view of the raising mechanism.

FIG. 6 is a sectional view of the raising mechanism.

FIG. 7 is a partial front view of the grain stem raising device.

FIG. 8 is a cross-sectional side view of the right ear tip transport mechanism.

FIG. 9 is a cross-sectional side view of the right-hand ear tip transfer mechanism.

FIG. 10 is a plan view of the clamping body.

FIG. 11 is a front view of the clamping body.

FIG. 12 is a side view of the holding body.

FIG. 13 is a diagram illustrating the arrangement of transport tines.

FIG. 14 is a side view of the conveyance guide body.

FIG. 15 is a plan view of the conveyance guide body.

FIG. 16 is a plan view of a cutting unit including a jam sensor.

FIG. 17 is a sectional view of a feed chain drive case.

FIG. 18 is a side view of the feed chain drive case.

FIG. 19 is a partially cutaway front view of the cutting frame.

FIG. 20 is a sectional view of a vertical frame.

FIG. 21 is a conceptual explanatory diagram of a power transmission mechanism.

FIG. 22 is a plan view of a mowing unit as another embodiment.

[Explanation of symbols]

 A Combine B Power transmission mechanism 1 Airframe 2 Running section 3 Cutting section 4 Threshing section 5 Drainage processing section 6 Operating section 7 Kernel storage tank 8 Feed chain

Claims (4)

[Claims] An operating unit is provided at a right front portion of the machine, a mowing portion is provided at a left front end portion, a threshing portion is provided at a rear position of the mowing portion, and a culm is mowing at the mowing portion. In a combine provided with a cutting blade device and upper and lower transfer devices for transferring grain culms cut by the cutting blade device to the threshing unit side, the upper transfer device includes a left upper transfer mechanism, a central upper transfer mechanism, and a right side. An upper transport mechanism for a combine, comprising an upper transport mechanism, wherein the upper right transport mechanism is formed by dividing the front transport body and the rear transport body into two parts. 2. The front carrier is disposed substantially in parallel with a lower right transport mechanism provided in a lower carrier provided below the front carrier, and the rear carrier is provided with an upper / lower carrier. The upper transport mechanism of a combine according to claim 1, wherein the upper transport mechanism is disposed substantially in parallel with an auxiliary transport device disposed between the threshing unit. 3. The combine upper transport mechanism according to claim 1, wherein a front transport body is interlocked to a drive mechanism of the lower transport device. 4. A start end portion of a rear transport body is disposed below an end side portion of the front transport body, and a drive shaft of the front transport body is directed upward from below at a start end side of the rear transport body. Let it penetrate,
The upper transport mechanism of a combine according to any one of claims 1 to 3, wherein an upper end of the drive shaft is linked to an end side of the front transport body.