JPH10178864A - Carrying mechanism for cutting part of combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine provided with a carrying mechanism capable of smoothly carrying grain culms corresponding to the cutting amount of the grain culms. SOLUTION: In the combine, a cutting part disposed at the front part of a threshing part is provided with left and right side lower part carrying mechanisms 34 and 36 for performing carriage to a vertical carrying mechanism communicated to the start end part of a feed chain while clamping the lower part of the grain culms. The width (w) of a grain culm passage P formed by the terminating end part of the left side lower part carrying mechanism 34 and the terminating end part of the right side lower part carrying mechanism 36 is made adjustable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for transporting a combine harvester.

[0002]

2. Description of the Related Art Conventionally, in a combine, a cutting unit is provided at a front end of the machine, and a threshing unit is provided behind the cutting unit. The lower transport mechanism that clamps the lower part of the culm and transports it to the threshing part was formed on both the left and right sides of the mowing part.

[0003] The lower transport mechanism basically comprises a transport chain and a clamping body arranged opposite to the transport chain. The clamping body transports the clamping rail support arm. A single spring is used to protrude and retract toward the chain side, and a clamping rail is attached to the end of the clamping rail along the transport chain.

[0004] In each of the left and right lower transport mechanisms, the grain culm is transported from the starting end to the terminal end of the lower transport mechanism while the grain is pinched by the transport chain and the strapping body. Between the end portions of the cereals, the culms conveyed by the left and right lower conveying mechanisms are merged and further conveyed to a rear threshing unit.

[0005]

However, in the above-mentioned conventional combine, the left and right lower transport mechanisms are fixed to the cutting frame of the reaping unit, and the terminal end of the left lower transport mechanism and the right lower transport mechanism. Because the width of the grain culm passage formed by the end part could not be adjusted, when the amount of grain culm passing through the grain culm passage was small, so-called stalk spilling of the grain culm from the transport mechanism occurred. When the transport state is disturbed, on the other hand, when the amount of cereal stalks is large, there is a problem that the cereal stalks are clogged in the cereal stalk passages, making smooth transport difficult.

[0006] Moreover, since the banding body protrudes through the banding support arm and only one spring, if the amount of cereal stalks caught by the banding body and the transport chain becomes large, the banding force becomes large. Was too strong, and the culm was broken or bent in the middle, causing unhandled material in the threshing unit.

[0007]

Therefore, according to the present invention, a mowing unit disposed in front of a threshing unit conveys a lower portion of a grain culm to a vertical conveying mechanism communicating with a starting end of a feed chain. In a combine equipped with the left and right lower transport mechanisms, the width of the grain culm passage formed by the terminal end of the left lower transport mechanism and the terminal end of the right lower transport mechanism can be adjusted.

Further, the width of the cereal culm passage is adjusted according to the amount of cereal culm passing through the cereal culm passage.

[0009] Also, the mowing part disposed in front of the threshing part,
A vertical transport mechanism leading to the starting end of the feed chain is equipped with a lower transport mechanism that transports the lower part of the cereal stem while pinching it, and the lower transport mechanism is composed of a transport chain and a sandwiching body facing the transport chain. In the new combine,
It was decided that the culm clamping force between the transport chain and the clamping body could be adjusted according to the amount of cereal culm.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A transport mechanism for a mowing section according to the present invention has a mowing section attached to the front end of a combine so as to be able to move up and down, and a threshing section for threshing a grain culm behind the mowing section. , The reaping unit includes a left and right lower transport mechanism that clamps the lower part of the grain culm on the left and right sides and transports to the threshing unit,
The terminal portion of the lower left transport mechanism and the terminal portion of the lower right transport mechanism are disposed close to each other, so that the width of the grain stem passage formed by the terminal portion of the lower left transport mechanism and the terminal portion of the lower right transport mechanism can be adjusted. It was made.

Therefore, when the amount of cereal stalk passing through the cereal stalk passage is small, by narrowing the width of the stalk culm passage, so-called stalk spilling of the stalk can be prevented beforehand. When the amount of cereal stems is large, by increasing the width of the cereal stem passages, the cereal stems can be prevented from clogging in the cereal stem passages, and the transportation of the cereal stems can be performed smoothly. Things.

Moreover, even if the cereal stem is clogged in the cereal culm passage, the cereal culm clogged in the cereal culm passage can be easily removed by forcibly expanding the width.

[0013] Further, the lower transport mechanism includes a transport chain, and a clamping body disposed to face the transport chain,
The structure is such that the cereal stem is clamped by the transport chain and the straddling body, and the striking force of clamping the cereal stem by the transport chain and the stratifying body can be adjusted according to the amount of the cereal stem. .

Therefore, when the amount of cereal stalks to be entrapped by the tying body and the transport chain is large, by weakening the tying force, the cereal stalks are broken or bent halfway, and the threshing part is formed. Can be prevented from being left behind.

[0015]

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

FIG. 1 and FIG. 2 show a combine A having a transport mechanism of a mowing unit according to the present invention. The combine A is a pair of left and right crawler-type traveling units 2, 2, a mowing unit 3 is attached to the front end of the body frame 1 so as to be able to move up and down, and a threshing unit 4 is provided immediately after the mowing unit 3, and a straw processing unit is provided immediately after the threshing unit 4. 5, an operating unit 6 is provided at the front right side of the body frame 1, and a shell particle storage tank 7 is provided at a position immediately behind the operating 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 the upper end of a support 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 the figure, a cylindrical rotating support shaft 12 extending in the left-right width direction is horizontally suspended between the upper ends of a pair of left and right support columns 10, 10 so as to be rotatable around an axis. The cylindrical vertical frame 13 extends forward and downward from the lower part, and a middle part of a cylindrical lower horizontal frame 14 extending in the left-right width direction is attached to the lower end of the vertical frame 13, and the lower horizontal frame 14 is attached. The rising frames 15, 15 are raised from the left and right ends toward the front and upward, and the upper horizontal frame 16 is suspended between the upper ends of both frames 15, 15. While the upper connecting frame 17 which curves upward in a convex manner between the upper portion of the vertical frame 13 and the upper frame, the connecting frame 18 is extended forward from the left and right sides and the center of the lower horizontal frame 14, respectively. And is formed. In the figure, reference numeral 19 denotes a lower carrier supporting frame.

In addition, a total of seven weeding boards 20 for weeding the six culms to be planted are provided on the above-mentioned mowing frame 11 with a constant spacing between the left and right width directions. 20
Stalk raising device for raising the six-row stalk culled by the plant
And a grain stalk scraping device 22 for scraping the roots of the six-row grain stalks raised by the grain stalk raising device 21, and a grain stalk scraping device
A cutting blade device that cuts off the roots of the grain stems scraped by 22
A lower conveying device 24 that conveys the lower part of the six-row grain culm cut by the cutting blade device 23 to the threshing unit 4 side, and an upper conveying device 25 that conveys the upper part of the grain culm to the threshing unit 4 side, Head-end transfer device 26 for transferring the tip of the same grain stem, and upper and lower transfer devices
An auxiliary transport device 27 is provided to assist the transfer of the grain stalks from 25, 24 to the feed chain 8 of the threshing unit 4.

Hereinafter, each device attached to the mowing frame 11 will be specifically described.

The grain stalk raising device 21 is provided with a total of six raising cases 30 extending in the vertical direction at a position immediately behind the weeding plates 20 adjacent on the left and right. A total of six raising drive cases 66 are provided between the upper part and the upper horizontal frame 16.
And a large number of raised tines 31 in each raised case 30.
a is provided so as to be rotatable in the vertical direction, and the raising mechanism 31 is configured so that each of the raising tines 31a advances when moving up and down and retracts when moving downward. I have.

The grain stalk raking device 22 is provided with each of the raising cases described above.
Immediately after the position 30, the tine-attached scraping belt 32 and the star wheel 33 are arranged so as to be vertically opposed to each other.

The lower transporting device 24 includes a left lower transporting mechanism 34 that clamps the lower part of the two-row grain culm on the left side and transports it backward.
And a central lower transport mechanism 35 that clamps the lower part of the two-row grain culm at the center and transports it backward, and a right lower transport that grips the lower part of the two-row grain culm and transports it backward. A mechanism 36 and a vertical transport mechanism 37 that clamps the lower part of the cereal stem transported by the transport mechanisms 34, 35, and 36 and transports the grain to the feed chain 8 are provided.

The transport mechanisms 34, 35, 36 basically include transport chains 34a, 35a, 36a and transport chains 34a,
35a, 36a, the strangulation body 34 arranged opposite to each culm conveyance path
b, 35b, 36b, and is configured so that the culm is clamped by the transport chains 34a, 35a, 36a and the clamping bodies 34b, 35b, 36b, and the vertical transport mechanism 37 is similarly configured. I have.

As shown in FIGS. 4 and 5, the lower left transfer mechanism 34 can slide the sprocket support bracket 91 on the upper end of the transfer chain support frame 34c along the extension direction of the transfer chain support frame 34c. Installed.

That is, a sliding projection 34d having a reduced diameter is projected from the upper end of the transport chain support frame 34c, and a cylindrical sliding tube 91 is formed on the lower side of the sprocket support bracket 91.
a, a sliding protrusion 34d is inserted into the hollow portion of the sliding tube 91a, and a motor 86 is mounted on the left side of the upper end of the transfer chain support frame 34c. The shaft 86a and a cylindrical female screw body 91b mounted on the left side of the lower end of the sprocket support bracket 91 are screwed together. In the figure, 83 is a sprocket, 84 is a pulley, and 87 is a tension pulley.

When the motor 86 is driven, the sprocket 83 pivotally supported on the sprocket support bracket 91 is driven.
Slides along the extension direction of the transfer chain support frame 34c to move the end of the lower left transfer mechanism 34 and the right lower transfer mechanism 36
The width w of the cereal culm path P formed by the end portion of the stalk can be adjusted. At that time, tension pulley 87
And the transfer chain 34a is stretched.

Further, each lower transport mechanism 34, 35, 36 has
As shown in the figure, the grain culm detectors 85a, 85b, 85c are rotatably mounted, and the grain culm detectors 85a, 85b, 85c are grain culm transported by the respective lower transport mechanisms 34, 35, 36. Is the grain stalk detector 85a,
By rotating 85b and 85c, the rotation can be detected to detect the number of mowing strips.

The amount of cereal stalk passing through the cereal stalk passageway P is determined based on the number of cutting lines detected by the stalk culm detectors 85a, 85b, 85c and the traveling speed of the machine, and the motor is determined in accordance with the stalk culm amount. The width w of the cereal stem passage P is adjusted by driving the 86.

For example, when it is detected that all of the culm detectors 85a, 85b, 85c are carrying culm, and when the running speed of the machine is high, the culm for six rows is high speed. Cereal stalk passage P
Therefore, the width w of the cereal culm passage P is widened so that clogging of the cereal culm can be prevented.

On the other hand, the grain stem detector 85 of the lower left transport mechanism 34
If it is detected that only a is carrying the culm, and if the traveling speed of the machine is slow, the corn stalks of two rows pass through the culm passage P at a low speed. The width w of the culm passage P is reduced to prevent the culm from falling.

As described above, by adjusting the width w of the cereal culm path P formed by the terminal end of the lower left transport mechanism 34 and the terminal end of the right lower transport mechanism 36, the grain culm path P is adjusted.
Even when the amount of cereal stalk passing through the stalk is small, it is possible to prevent the so-called stalk spilling of the stalk which falls, and on the other hand, even when the amount of cereal stalk is large, the cereal stalk is clogged in the cereal stalk passage P Can be prevented, and grain culm can be transported smoothly.

Moreover, even if the cereal stalk is clogged in the cereal stalk passage P,
Since the width w can be forcibly expanded, the grain stem passage P
Grain stalks clogged in can be easily removed.

A clogging sensor 92 for detecting clogging of the grain stalk is mounted at the end of the left side transport mechanism 34. The clogging sensor 92 includes a detection switch 93 on a sprocket support bracket 91 and a sensor mounting bracket 94. And the base end of the detection terminal 95 is mounted on the inside of the sprocket support bracket 91 via the sensor mounting bracket 94, and the detection terminal 95 is mounted on the inside of the sprocket support bracket 91 via the sensor mounting bracket 94. The distal end portion of the detection terminal 95 is disposed between the detection switch 93 and the grain stalk passage P so as to extend in a curved shape along the periphery. A clogging sensor 98 having the same configuration is also attached to the end of the central transport mechanism 35.

When the grain stalk is clogged and conveyed in the grain stalk passageway P, that is, when the grain stalk acts on the tip of the detection terminal 95, the detection switch 93 is operated.
The detection result is notified to the driver by a notification means such as a buzzer or a lamp.

As shown in FIGS. 5 and 6, the clamping body 34b is attached to a fixing plate 107 attached to the transport chain support frame 35c of the central transport mechanism 35 by a mounting member 102 formed in a side view portal type.
And a pair of clamping rail support arms
101, 101 are slidably projected toward the transfer chain 34a,
Between both ends of the support arm 101, 101
100 hangs along the transport chain.

As shown in FIG. 6, double springs 104 and 105 are interposed between the clamping rail support arm 101 and the mounting body 102, and are clamped by the clamping rail 100 and the transport chain 34a. If the amount of cereal stalks is small,
When only the inner spring 104 acts and the grain culm amount exceeds a predetermined amount, the lower surface of the operating plate 103 attached to the pinching rail support arm 101 is attached to the mounting body 102 via the outer spring 105. The inner spring 104 abuts on the upper surface of the attached follower 106 so that the inner spring 104 does not operate and only the outer spring 105 operates. Here, the springs 104 and 105 have the spring constant of the inner spring 104 larger than the spring constant of the outer spring 105, so that the clamping force is weakened when the amount of cereal stalks to be trapped becomes large. . In addition, the pinching bodies 35b and 36b have the same configuration.

Therefore, the clamping body 34c and the transport chain 34a
Even if the amount of cereal stems to be pinched becomes large, the pinching force can be weakened, so that it is possible to prevent the stalks from being left unhandled in the threshing part due to breaking or bending halfway. it can.

Further, the sandwiching body 34b can be configured as shown in FIGS. Note that the same applies to the sandwiching bodies 35b and 36b.

8 has an operating plate 103 interlockingly connected to a middle portion of the holding rail support arm 101, and a plurality of diaphragm springs 108 are opposed between the operating plate 103 and the mounting member 102. As shown in FIG. 9, the diaphragm spring 108 is formed in a disk shape that is convexly curved toward the center and forms a circular opening 108a in the center. A plurality of radial slits 108b are formed from the circular opening 108a toward the periphery. 8, reference numeral 109 denotes an adjacent diaphragm spring 108,108.
Are connected.

Due to the characteristics of the diaphragm spring 108, the grain culm amount is not less than a predetermined amount compared with the spring constant of the diaphragm spring 104 when the amount of cereal culm clamped by the clamping rail 100 and the transport chain 34a is small. In this case, the spring constant of the diaphragm spring 108 is reduced, so that even if the amount of cereal stalks caught by the pinching body 34c and the transport chain 34a becomes large, the pinching force can be reduced, and Can be prevented from being left unhandled in the threshing unit due to being broken or bent halfway.

In the banding body 34b shown in FIG. 10, an operating arm 111 is interlockedly connected to the base end of the banding rail support arm 101, and a middle part of the operating arm 111 is urged by a spring 110. The operating arm 111 and the spring 110 are
The base end is swingably attached to the transfer chain support frame 35c.

The clamping rail 100 and the transport chain 34
The angle between the operating arm 111 and the spring 110 decreases as the amount of cereal stems caught by a increases.

Therefore, even if the amount of cereal culm increases, the pinching force increases little by little without being proportional to the increase in the amount of cereal culm, and the cereal culm caught by the pinching body 34c and the transport chain 34a. Even if the amount of corn becomes large, the pinching force can be weakened, and the unhandled portion in the threshing part due to the culm breaking or bending halfway can be prevented.

As shown in FIG. 5, a clogging sensor 96 is mounted on the transport chain support frame 35c of the lower central transport mechanism 35 toward the clamping rail 100 provided on the clamping body 34b. The sensor 96 irradiates light to the light reflector 97 attached to the rear end of the
0 detects an operation that is farther than a certain distance from the transport chain 34a as a transport jam, and notifies the driver of the detection result by a notification means such as a buzzer or a lamp.

The vertical transport mechanism 37 has a start end located below the grain culm passage P, and is transported by the left and right lower transport mechanisms 34 and 36 to remove the lower portion of the grain culm joined in the grain culm passage P. The feed chain 8 is securely transported to the feed chain 8 by being pinched.

The upper conveying device 25 is a left upper conveying mechanism 38 for picking up the upper part of the two-row grain culm on the left side and conveying it rearward.
And a central upper transport mechanism 39 that lifts the upper part of the two-row grain culm at the center and transports it backward, and a right upper transport mechanism 40 that lifts the upper part of the two-row grain culm of the right part and transports it backward. The upper right transport mechanism 40 is divided into a front transport body 41 and a rear transport body.

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

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.

The spike transport device 26 includes a left spike transport mechanism 43.
And a center-head transport mechanism 44 and a right-head transport mechanism 45. These tip transport mechanisms 43, 44, and 45 are located at a position immediately behind the star wheel 33 and have a left upper transport mechanism 38 and a central upper transport mechanism. Above each of the mechanism 39 and the front transport body 41, and disposed at a position facing each of the transport mechanisms 38, 39 and the front transport body 41 with each of the grain culm transport paths interposed therebetween, each of which has two sections The tip of the culm is transported.

[0051] These tip transport mechanisms 43, 44, 45
Of the six raising drive cases 66 described above, they are interlockingly connected to a tip transfer driving case 68 extending downward from the three raising drive cases 66, and each of the tip transfer mechanisms 43, 44, 45. A plurality of transport tines 43a, 44a, 45a are mounted so as to be able to reciprocate in the front-rear direction, and each transport tine 43a, 44a, 45a is configured to advance when moving backward and retreat when moving forward. I have.

The auxiliary transporting device 27 is disposed between the terminal side of the vertical transport mechanism 37 and the terminal side of the rear transporting body 42, and is disposed close to the starting side 8a of the feed chain 8. 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 so as to deliver and transport an intermediate portion of the grain culm to the feed chain 8.

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.

To the grain stalk raising device 21, the engine E → the transmission unit M → the cutting drive shaft 50 → the vertical transmission shaft 60 → the lower horizontal transmission shaft 63 inserted into the lower horizontal frame 14 → the rising frame 15
The rising transmission shaft 64 inserted in the inside → the upper horizontal transmission shaft 65 inserted in the upper horizontal frame 16 → the raising drive shaft 67 inserted in the raising drive case 66 → the raising output shaft 81 → the grain raising device
Power is transmitted as in 21.

The raising drive shaft 67 is connected to the tip conveying device 26.
Then, power is transmitted in the order of the raising drive shaft 67 → the tip transport drive shaft 69 → the tip transport output shaft 82 → the tip transport device 26.

The cutting drive shaft 50 is connected to the feed chain 8.
Power is transmitted in the order of the mowing drive shaft 50 → the power take-out shaft 52 → the speed changeover mechanism 56 → the feed chain drive shaft 54 → the feed chain 8.

The auxiliary transfer device 27, the rear transfer body 42, the lower right transfer mechanism 36, and the grain squeezing device 22 are derived from the vertical drive shaft 60, and the vertical drive shaft 60 → the auxiliary / rear transfer drive. axis
61 → auxiliary / rear side transport rising shaft 70 → power is transmitted like auxiliary transport device 27 and rear transport body 42, and vertical power transmission shaft 60 → right lower transport drive shaft 71 → right lower transport mechanism 36 →
Power is transmitted as in the cereal stem scraping device 22, and further to the front side transport body 41 and the vertical transport mechanism 37, derived from the right lower side transport drive shaft 71, and the right lower side transport drive shaft 71 → front side transport drive. Power is transmitted as shaft 72 → front side transport body 41, and power is transmitted as lower right side transport drive shaft 71 → vertical transport first drive shaft 73 → vertical transport second drive shaft 74 → vertical transport mechanism 37 Is done.

Power is transmitted to the cutting blade device 23 in the order of the lower horizontal transmission shaft 63 → the cutting blade drive shaft 75, 75 → the cutting blade devices 23, 23, derived from the lower horizontal transmission shaft 63. You.

The upper left and lower transport mechanisms 38, 34 and the upper central
The lower transport mechanisms 39 and 35 are derived from the rising transmission shaft 64 and rise transmission shaft 64 → the left upper / lower transport drive shaft 76.
→ Power is transmitted as shown in the upper left / lower transport rising shaft 77 → left upper / lower transport mechanism 38, 34 → central lower transport mechanism 35 → central upper transport mechanism 39.

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

[0061]

The present invention is embodied in the form described above and has the following effects.

(1) According to the first aspect of the present invention, the reaping unit disposed in front of the threshing unit conveys the lower portion of the grain culm to the vertical conveying mechanism communicating with the starting end of the feed chain. In the combine having the left and right lower transport mechanisms, the width of the cereal culm passage formed by the terminal end of the left lower transport mechanism and the terminal end of the right lower transport mechanism can be adjusted, so that the culm passage passes. The width can be set according to the amount of cereal stalk, and the stalk can be transported smoothly.

Moreover, even if the grain stalk is clogged in the grain stalk passage, the grain stalk clogged in the grain stalk passage can be easily removed by forcibly expanding the width.

(2) In the present invention, the width of the cereal culm passage is adjusted according to the amount of cereal culm passing through the cereal culm passage. In the case of a small amount, by narrowing the width of the cereal culm passage, it is possible to prevent so-called stalk spilling in which the cereal culm falls down. By increasing the width of the stalk, the stalk can be prevented from clogging in the stalk passage, and the stalk can be transported smoothly.

(3) According to the third aspect of the present invention, the reaping unit disposed in front of the threshing unit conveys the lower part of the culm to the vertical conveying mechanism communicating with the starting end of the feed chain. A combine having a lower transport mechanism and a lower transport mechanism comprising a transport chain and a sandwiching body facing the transport chain. Since the culm clamping force can be adjusted, when the amount of cereal culm to be clamped by the clamping body and the transport chain is large, by reducing the clamping force, the cereal culm breaks or bends halfway. As a result, it is possible to prevent unhandled products in the threshing unit.

[Brief description of the drawings]

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

FIG. 2 is a front view of the same.

FIG. 3 is a side view of the reaper.

FIG. 4 is a front view of the same.

FIG. 5 is a partially enlarged front view of a cutting section.

FIG. 6 is a cross-sectional view of the pinching body.

FIG. 7 is a conceptual explanatory diagram of a power transmission mechanism.

FIG. 8 is a cross-sectional view of a clamping body as another embodiment.

FIG. 9 is an explanatory view of a diaphragm spring.

FIG. 10 is a plan view of a sandwiching body as another embodiment.

[Explanation of symbols]

 A Combine P Grain culm passage w Width 3 Cutting part 4 Threshing part 34,35,36 Lower conveying mechanism 34a, 35a, 36a Conveyor chain 34b, 35b, 36b Clamping body 83 Sprocket 85a, 85b, 85c Grain culm detecting body 86 Motor 100 Clamping rail 101 Clamping rail support arm 103 Operating plate 104,105 Spring 106 Follower

Claims (3)

[Claims] 1. A harvesting unit (3) disposed in front of a threshing unit (4).
Feed mechanism (3) leading to the beginning of the feed chain (8).
7), in a combine equipped with a left and right lower transport mechanism (34, 36) for transporting the lower part of the grain stem while pinching it, the terminal end of the left lower transport mechanism (34) and the right lower transport mechanism (36 )
And a width (w) of a cereal culm path (P) formed by the end portion of the stalk is adjustable. 2. The harvester according to claim 1, wherein the width (w) of the grain culm path (P) is adjusted according to the amount of grain culm passing through the grain culm path (P). Transport mechanism. 3. A cutting section (3) disposed in front of a threshing section (4).
Feed mechanism (3) leading to the beginning of the feed chain (8).
7) A lower transport mechanism that transports the lower part of the culm while pinching it
(34), and the lower transport mechanism (34) includes a transport chain (34a) and a clamping body (34b) facing the transport chain (34a).
A harvesting unit for a combine, characterized in that the grain stalk-clamping force between the transport chain (34a) and the sandwiching body (34b) can be adjusted according to the grain stalk amount. Transport mechanism.