JPH114614A - Combine harvester of general-purpose type - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject combine harvester not damaging a sledge body for detecting reaping height, by holding the front edge part of the sledge body for detecting reaping height at or in the center of the bottom part of a platform, linking the front edge part of a connecting piece to the rear edge part of the sledge body and longitudinally slidably fitting the rear edge part of the connecting piece to the bottom part of the platform. SOLUTION: In this combine harvester equipped with a reaping blade at the front part of a platform 11 for supporting a platform auger 14 and with a sledge body 25 for detecting reaping height of crops by the reaping blade at a position right behind the reaping blade, the sledge body 25 for detecting the reaping height holds a front edge part 25a at or in the center of the bottom part of the platform 11. A front edge part 27a of a connecting piece 27 is linked to a rear edge part 25b extended from the front edge part 25a rear backward and a rear edge part 27b of the connecting piece 27 is longitudinally slidably fixed to a bottom part 1a of the platform 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a general-purpose combine.

[0002]

2. Description of the Related Art Conventionally, as one form of a general-purpose combine, a pair of left and right weeds for weeding crops in a field, a scraping reel for scraping a crop weeded by the same weeds, and a scraping reel There is a cutter equipped with a cutting unit having a cutting blade for cutting the root of the crop scraped by the cutting blade and a platform auger for receiving the crop cut by the cutting blade.

[0003] At the position immediately behind the cutting blade, a cutting height detecting sled body for detecting the cutting height of the crop by the cutting blade is provided.

The scraping reel is supported by a reel support arm between a pair of left and right weeds so as to be able to move up and down.

[0005]

However, the above-mentioned general-purpose combiner still has the following problems.

[0006] When the body is moved backward while the cutting unit is in contact with the ground, the cutting height detecting sled body may catch the soil, and the sled body may be damaged.

[0007] The grain stalks that have been transported rearward while sliding on the weeding body may be caught between the same weeding body and the reel support arm of the raking reel, and may not be able to be scraped by the raking reel. .

[0008]

Therefore, according to the present invention, a cutting blade is provided at a front portion of a platform supporting a platform auger, and a cutting height of a crop by the cutting blade is detected at a position immediately behind the cutting blade. In a general-purpose combine with a cutting height detecting sled body, the cutting height detecting sled body pivotally supports the front end at the bottom of the platform and extends rearward and downward from the front end to form a rear end. And a front end of the connecting piece is rotatably connected to the base, and a rear end of the connecting piece is attached to the bottom of the platform so as to be slidable back and forth. .

The present invention also provides a cutting height detecting sled body,
The front end is pivotally supported at the bottom of the platform, and the height of the cutting can be detected by vertical movement of the rear end formed by extending rearward and downward from the front end, and a lifting mechanism is linked to the front end. The lifting mechanism enables the position to be freely changed between a detection position where the rear end touches the field scene and a storage position where the rear end is separated from the field scene. The switching lever is interlocked and connected, and the switching operation other than the forward switching operation of the forward / backward switching lever is linked to the storing operation of the cutting height detecting sled body, and the pair of left and right weeding bodies are:
The rear end is extended rearward and upward to form a rising portion for regulation that rises upward at a position behind the tip of the cutting blade, and the upper end portion of the regulation rising portion and the raking reel are moved up and down. It is also characterized in that the middle part of the reel supporting arm that freely supports it is arranged to be overlapped inside and outside in a side view.

[0010]

Embodiments of the present invention will be described below.

The general-purpose combiner according to the present invention is provided with a cutting section as a basic structure, and the cutting section includes a pair of right and left weeds for weeding crops in a field, and weeding by the same weeds. A scraping reel for scraping the harvested crop, a cutting blade for cutting the root of the crop scraped by the scraping reel, a platform auger for catching the crop cut by the cutting blade, And a sled body for detecting a cutting height for detecting a cutting height of a crop by a cutting blade.

As a characteristic structure, the cutting height detecting sled body pivotally supports the front end at the bottom of the platform and extends rearward and downward from the front end to form a connecting piece. The front end is rotatably connected, and the rear end of the connection piece is slidably attached to the bottom of the platform.

In this way, when the body is moved backward, when an external force acts on the connecting piece, the rear end of the connecting piece slides backward to detect the cutting height connected to the front end of the connecting piece. The rear end of the sled body is raised, so that the sled body does not trap the soil and the sled body is not damaged.

The cutting height detecting sled body has a front end pivotally supported at the bottom of the platform and extends downward and downward from the front end to detect the cutting height by vertical movement of the rear end. In addition to the above, a lifting mechanism is interlocked to the front end, and a position between a detection position where the rear end touches the field scene by the lifting mechanism and a storage position where the rear end is separated from the field scene. It can be changed freely, and the forward / backward switching mechanism of this machine is linked to the lifting / lowering mechanism, and the storage operation of the cutting height detecting sled body is linked to the switching operation other than the forward switching operation of the forward / backward switching lever. In this manner, when the forward / reverse switching lever is operated for forward switching, the cutting height detecting sled body is changed to the detection position, but the forward / backward switching lever is operated for neutral operation or reverse switching operation. The sled body is repositioned to the stowed position Never re body is damaged or the like.

Therefore, the aircraft can be moved backward even when the mowing part is kept in contact with the ground, which is particularly effective for working in wetlands.

[0016] The pair of left and right weeds extends the rear end upward and rearward to form a regulating rising portion which rises upward at a position rearward of the tip of the cutting blade. An upper end portion of the rising portion and a middle portion of the reel support arm that supports the raking reel so as to be able to move up and down are arranged to be overlapped inside and outside in a side view.

In this manner, the grain stalks that have been transported rearward while sliding on the herbaceous body are regulated from being transported rearward by the regulating rising portions formed at the rear end of the herbaceous body. Without being caught between the plant and the support arm, as a result,
Grain stalks are reliably swept by the raking reels, and the grain stalks are reliably taken into the platform auger.

[0018]

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

A shown in FIG. 1 is a general-purpose combine according to the present invention. The general-purpose combine A has a body frame 2 mounted on a pair of left and right crawler-type traveling units 1 and 1,
An operating unit 3 is disposed at a front right portion of the airframe 2, a motor unit 4 is disposed immediately after the driving unit 3, a storage unit 5 is disposed immediately after the driving unit 3, and threshing is performed at a left position thereof. The unit 6 and the sorting unit 7 are arranged vertically, respectively, and the straw processing unit 8 is arranged at a position behind the threshing unit 6 and the sorting unit 7, and at the position in front of the threshing unit 6 and the sorting unit 7. A reaper 9 and a transporter 10 are provided.

In this manner, the crop in the field is cut by the cutting unit 9 and the crop cut by the cutting unit 9 is transferred to the transport unit 10.
To the threshing unit 6, threshing the crop by the threshing unit 6, selecting the threshed kernels by the sorting unit 7, transporting the refined granules to the storage unit 5 and storing the unprocessed grains, Part 6
The culm is reduced again through the reducing unit 60 and threshed again, and the crop culm is shredded by the straw processing unit 8 and released to the outside.

The cutting unit 9 and the transporting unit 10 can be moved up and down by lifting means (not shown) so that the cutting unit 9 can adjust the cutting height of the crop.

As shown in FIG. 1, the cutting section 9 has a pair of right and left weeding bodies 12, 12 attached to the front end of a platform 11,
A cutting blade 13 is provided at a rear position between the same plant bodies 12, 12.
A platform auger 14 is provided at the rear of the platform 11, and a pair of left and right reel support arms 15, 1 is provided above the rear end of the platform 11.
5 is attached, and the take-up reel 16 is rotatably suspended between the two reel support arms 15,15.

The scraping reel 16 has a pair of left and right reels 17 and 17 mounted via a reel support shaft 18.
A plurality of reel bars 19 extending in the left-right direction between 7, 17 are laid horizontally at intervals in the circumferential direction, and a plurality of tines 20 are attached to each reel bar 19 at intervals in the left-right direction. twenty one
Is a transmission case for transmitting rotational power to the scraping reel 16.

As shown in FIGS. 2 and 3, at the lower rear part of the platform 11 and at a position immediately behind the cutting blade 13, a cutting height for detecting the cutting height of the crop by the cutting blade 13 is provided. A warp detecting body 25 is provided.

That is, the cutting height detecting sled body 25 is configured as shown in FIG.
As shown in the figure, the front end 25
a through a pivot 26 and extend rearward and downward from the front end 25a to a front end 27b of a connecting piece 27.
a is rotatably connected via a connecting pin 28, and the connecting piece 27
The rear end portion 27b of the base plate 11 abuts on a guide rail 29 provided on the bottom portion 11a of the platform 11 via a roller 30 so as to be slidable back and forth. 31 is a roller support shaft.

The pivot 26 has a base end of a sensor operating arm 32 attached thereto, and a pivot angle detection sensor 33 is attached to a portion of the platform 11 located above the pivot axis 26. Sensor action piece 33a protruding from 33
And the sensor operation arm 32 are linked to each other via a link.

Thus, the cutting height detecting sled body 25
Is that the rear end 25b contacts the field scene G, so that the rear end 25b moves up and down according to the unevenness of the field scene G,
The pivot 26 rotates forward and backward in conjunction with the vertical movement of the rear end 25b, and the sensor operation arm 32 → the link 34 → the sensor operation piece 33a.
→ By operating the rotation angle detection sensor 33, the cutting height can be detected.

At this time, the rear end 25 of the cutting height detecting sled body 25
Since the connecting piece 27 is connected to b, and the rear end 27b of the connecting piece 27 is in contact with the guide rail 29 provided on the bottom 11a of the platform 11 via the roller 30, the aircraft has moved backward. In this case, when an external force acts on the connecting piece 27, the roller 30 attached to the rear end 27b of the connecting piece 27 slides rearward along the guide rail 29 as shown in FIG. The front end 27a of the cutting body moves upward, and the rear end 25b of the cutting height detecting sled body 25 is also lifted upward in conjunction therewith, so that the sled body 25
Is not damaged.

The detection result of the rotation angle detection sensor 33 by the cutting height detecting sled body 25 is input to the elevating means, and the mowing unit 9 is raised and lowered as appropriate by the elevating means, so that the crop height is increased. Is ensured properly.

FIGS. 4 and 5 show a cutting height detecting sled body 25 as another embodiment.
Pivots the front end 25a on the bottom 11a of the platform 11
The cutting height can be detected by the vertical movement of a rear end portion 25b formed by extending rearward and downward from the front end portion 25a, and a lifting mechanism 35 is linked to the front end portion 25a. Then, the position of the rear end 25b can be freely changed between a detection position where the rear end 25b is in contact with the field scene G and a storage position where the rear end 25b is separated from the field scene G by the lifting mechanism 35.
, The forward / reverse switching lever 36 provided in the driving unit 3 is interlocked and connected, and the storing operation of the cutting height detecting sled body 25 is interlocked with the switching operation other than the forward switching operation of the forward / backward switching lever 36. ing.

That is, the elevating mechanism 35 attaches the base end of the lower operation arm 40 to the pivot 26 while attaching the sensor support 41 to the portion of the platform 11 located above the pivot 26.
The upper end of the upper operating arm 44 is attached to the support shaft 42 via the boss 43, and the proximal end of the sensor operating arm 45 is attached to the boss 43.
A rotation angle detection sensor 33 is mounted at a position near the tip of the sensor 45, and the tip of the sensor action piece 33a protruding from the rotation angle detection sensor 33 is arranged close to the tip of the sensor operating arm 45, The lower operation arm 40 and the upper operation arm 44 are linked to each other via a link 46. 47 is an upper operation arm receiver, and 48 is a sensor operation piece receiver.

Further, a torque spring 49 is interposed between the pivot 26 and the cutting height detecting sled body 25 to urge the sled body 25 to turn to the ground contact side with the field scene G. I have.

As described above, when the cutting height detecting sled body 25 is rotated upward against the biasing force of the torque spring 49, the pivot 26 → the lower operating arm 40 → the link 46 → The upper working arm 44 → the support shaft 42 → the sensor working arm 45 → the sensor action piece 33a → the rotation angle detection sensor 33 is operated so that the cutting height can be detected.

The base end of the manual storage operation lever 50 is attached to the sensor support 41, and the lever 50 can be switched between the sensor detection operation position and the sensor storage operation position via the lever guide body 51. And

Thus, the manual storage operation lever 50
When the sensor is switched to the sensor storage operation position as shown in FIG. 5, the sensor support 41 rotates counterclockwise about the support shaft 42, and the upper and lower operating arms 44, 40 and the link 46 The cutting height detecting sled body 25 can be jumped up to a non-ground storage position separated from the field scene G through the, so that the same state can be maintained.

An engagement pin 52a provided on the upper part of the lever action body 52 is engaged with a middle part of the manual storage operation lever 50. Are connected to each other via a connecting pin 54, and the base end of the rotating arm 53 is connected to the output shaft 55a of the clutch motor 55.

Further, the clutch motor 55 is interlocked with the forward / reverse switching lever 36 provided in the operating section 3 so that the clutch motor 55 is driven to rotate forward when the forward / backward switching lever 36 is operated. The drive for positively rotating the output shaft 55a is linked so that the tip of the rotating arm 53 is located upward,
In addition, in the neutral operation and the reverse switching operation, which are switching operations other than the forward switching operation, reverse rotation driving of the clutch motor 55, that is, the output shaft 55 so that the distal end of the rotating arm 53 is positioned downward.
The drive that reverses a is linked. 56 is a slide guide pin of the lever action body 52.

Therefore, when a switching operation other than the forward switching operation is performed by the forward / reverse switching lever 36, the clutch motor 55
→ The output shaft 55a → the rotating arm 53 → the lever operating body 52 → the manual storage operation lever 50 is switched to the sensor storage operation position, and the cutting height detecting sled body 25 can be stored.

As described above, when the forward / reverse switching lever 36 is operated in the neutral operation or the reverse operation, the cutting height detecting sled body 25 is operated.
Is automatically moved to the storage position.
25 can be prevented from being damaged due to unevenness of the field scene G or the like.

Therefore, particularly in a wetland where the forward / reverse switching operation is frequently performed, the operation for storing the cutting height detecting sled body 25 does not need to be performed every time, which makes the operation easier.

FIG. 6 shows a cutting unit 9 according to another embodiment.
The rear end portion is extended rearward and upward, and rises upward at a position rearward of a virtual perpendicular line P orthogonal to the front end portion of the cutting blade 13 and at a position between the front end rotation locus Q of the tine 20. The upper ends of the regulation rising portions 12a, 12a and the middle portions of the reel support arms 15, 15, which support the scraping reel 16 in a vertically movable manner, are formed in a side view. It is arranged to polymerize inside and outside.

In this manner, the grain stem regulation space S is formed between the virtual perpendicular P and the front edge of the regulation rising portion 12a.

Therefore, the cereal stalks that have been transported rearward while sliding on the weeds 12, 12 are transported rearward by the regulating rising portions 12a, 12a formed at the rear ends of the weeds 12, 12. Is prevented from being pinched between the weeds 12 and 12 and the reel support arms 15 and 15, as a result, the stalks of the grain are reliably squeezed by the squeeze reel 16 and the platform auger 14 is secured. Incorporation into the system is ensured.

[0044]

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

According to the first aspect of the present invention, the cutting height detecting sled body pivotally supports the front end at the bottom of the platform, and is connected to the rear end formed by extending downward from the front end to the rear. Since the front end of the piece is rotatably connected and the rear end of the connection piece is slidably attached to the bottom of the platform, when the body is moved backward, when an external force acts on the connection piece, The rear end of the connecting piece slides rearward to raise the rear end of the cutting height detecting sled body connected to the front end of the connecting piece, and as a result, the sled body can capture the soil. And the sled body is not damaged.

According to the second aspect of the present invention, the cutting height detecting sled body pivotally supports the front end at the bottom of the platform and extends rearward and downward from the front end. The cutting height can be detected by movement, and a lifting mechanism is interlocked to the front end, and the rear end is separated from the field scene by a position where the rear end touches the field scene by the lifting mechanism. The position can be freely changed between the storage position and the lifting / lowering mechanism is connected to the forward / reverse switching lever of this machine in conjunction with the forward / backward switching lever. When the forward / reverse switching lever is operated to switch forward because the body storage operation is linked, the cutting height detecting sled body is changed to the detection position, but the forward / backward switching lever is operated neutral. Or, if the reverse switching operation is performed, the sled body is moved to the storage position. Further, the sled body is not damaged.

Therefore, the aircraft can be moved backward even when the mowing part is in contact with the ground, which is particularly effective for working in wetlands.

According to the third aspect of the present invention, the pair of right and left weeds extends the rear end portion rearward and upward, and the rising portion for regulation rises upward at a position rearward from the front end portion of the cutting blade. Since the upper end of the regulation rising portion and the middle portion of the reel support arm that supports the scraping reel so as to be able to move up and down are arranged so as to be overlapped inside and outside in a side view, a weeding body is formed. Grain stalks that have been transported rearward while sliding on the top are restricted from being transported rearward by the regulating rising portions formed at the rear end of the same herbaceous body, and are caught between the herbaceous body and the support arm. As a result, the grain culm is reliably scraped by the scraping reel, and the grain culm is reliably taken into the platform auger.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a general-purpose combine according to the present invention.

FIG. 2 is a partially cutaway side view of a cutting unit.

FIG. 3 is an explanatory view of a stored state of a cutting height detecting sled body of the cutting unit.

FIG. 4 is an explanatory side view of a cutting height detecting sled body as another embodiment.

FIG. 5 is an explanatory diagram of a storage state of the sled body.

FIG. 6 is an explanatory side view of a reaper as another embodiment.

[Explanation of symbols]

 A General-purpose combine 1 Running unit 2 Airframe 3 Operation unit 4 Motor unit 5 Storage unit 6 Threshing unit 7 Sorting unit 8 Drainage processing unit 9 Harvesting unit 10 Transport unit

Claims (3)

[Claims] A cutting blade is provided at a front portion of a platform for supporting a platform auger, and a cutting blade is provided at a position immediately behind the cutting blade.
In a general-purpose combine equipped with a cutting height detecting sled body that detects the cutting height of a crop by a cutting blade, the cutting height detecting sled body pivotally supports the front end at the bottom of the platform, and the front end A front end of the connecting piece is rotatably connected to a rear end formed by extending further downward and backward, and a rear end of the connecting piece is attached to the bottom of the platform so as to be slidable back and forth. General-purpose combine. 2. A cutting blade is provided at a front portion of a platform for supporting a platform auger, and a cutting blade is provided at a position immediately behind the cutting blade.
In a general-purpose combine equipped with a cutting height detecting sled body that detects the cutting height of a crop by a cutting blade, the cutting height detecting sled body pivotally supports the front end at the bottom of the platform, and The cutting height can be detected by the vertical movement of the rear end formed by extending downward from the part,
An elevating mechanism is linked to the front end, and the elevating mechanism allows the position to be freely changed between a detection position where the rear end touches the field scene and a storage position where the rear end is separated from the field scene. The forward / backward switching lever of this machine is linked and connected to the lifting mechanism,
For switching operations other than forward switching operation of the forward / reverse switching lever,
A general-purpose combine characterized by interlocking the storage operation of the cutting height detecting sled body. 3. A pair of right and left weeds for weeding crops in a field, a raking reel for scraping the crop weeded by the same weeds, and a root of the crop scraped by the scraping reel. In a general-purpose combine equipped with a cutting unit having a cutting blade for cutting and a platform auger for taking in a crop cut by the cutting blade, the pair of right and left weeds extends rearward and upward at a rear end. Forming a regulating rising portion rising upward at a position rearward from the tip of the cutting blade, and an upper end portion of the regulating rising portion and a middle portion of a reel support arm for supporting the scraping reel up and down freely. A general-purpose combine which is arranged so that it is superposed on the inside and outside in side view.