JP2574300Y2 - Pre-cutting equipment for combine harvesters - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pre-cutting device for combine harvesting.

[0002]

2. Description of the Related Art Conventionally, in a so-called general-purpose combine which is used for harvesting crops such as wheat and soybeans, a harvesting pretreatment device is mounted in front of a traveling machine so as to be adjustable up and down. Generally, the pre-cutting device is provided with a scraping reel, a cutting blade and a scraping auger. In this case, this pre-cutting processing is performed so that the fallen grain culm in the field can be sown on the inside and outside of the pre-cutting processing device on one of the left and right sides of the pre-cutting device. Providing a weeding device with a tine for raising cereal stems on one side of the device is described in
It is disclosed in 177126.

[0003] According to this prior art, the direction of rotation of the raking reel is such that the spike portion of the cereal stem planted in front of the raking reel is tilted downward, and below the raking auger on the rear side in the traveling direction. It turned forward and downward so as to guide the grain stem in the direction. On the other hand, in the weeding device, a moving chain extending longitudinally at one side of a pre-cutting device is disposed so as to be lower at the front and higher at the rear, and a tine that stands upward is attached to the chain. Therefore, the tip of the grain stem caused by the tine of this weeding device is guided at one end (the side close to the weeding device) of the reel that rotates downward, in the direction opposite to the direction in which it is raised. As a result, there was a problem that the herbicidal action could not be improved.

The purpose of the present invention is to solve this problem.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a bucket-shaped platform, a left and right longitudinal squeeze reel, and a cutting blade at the front of a traveling body, which extends left and right over the entire width of the traveling body. And a combine equipped with a mowing pretreatment device equipped with a scraping auger and a mowing auger, and one side wall of the platform includes:
Provided with a weeding device having a plurality of protruding tines that are longitudinally and longitudinally, and are inclined so that the rear end is located above the front end, and protrude upward and move rearward,
A clearance space of an appropriate width is formed between the one side end of the take-up reel in the platform, and a rear end of the clearance space is located at a position closer to the one side wall of the platform, and a rear end thereof is located above the front end. A grain stem raising device having a plurality of raising tines that are tilted so as to be positioned and protrude in a direction facing one side end of the raking reel and move rearward is provided.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment in which the present invention is applied to a general-purpose combiner will be described.
A pair of left and right crawler-type traveling devices 3 and 3 are provided on the lower surface of the vehicle, and a steering section 4 with a seat is disposed at a right front portion in a forward direction of the traveling body 2 and an engine (not shown) is provided at the rear. Z)
And a tank 5 for accumulating grains, and a threshing machine in which a front and rear longitudinal handling cylinder 6a having a double-pitch screw plate and an appropriate number of teeth are implanted on the outer circumferential surface is provided on the left side of the traveling machine body 2. The unit 6 includes a receiving net, a swing sorting device using a sheave or the like, and a wind sorting device using the wind of Jiang Karino.

[0007] Reference numeral 7 denotes a second reduction cylinder that conveys the grains from a second gutter (not shown) to the threshing unit 6, and reference numeral 8 discharges the grains in the tank 5 to the outside. It is a discharge tube for. On the front of the traveling machine body 2, a pre-cutting device 10
Is mounted on the traveling machine body via the hydraulic cylinder 12 for lifting. That is, in a state where the rectangular tubular feeder house 11 in the mowing pretreatment device 10 is communicated with the front opening of the threshing unit 6, the feeder house 11 can be moved up and down with respect to the traveling machine via the hydraulic cylinder 12 for elevating. The feeder house 11 is provided with an endless rotation type grain culm conveying means 13 such as a chain conveyor in which right and left longitudinal conveying plates are attached to a pair of left and right chains at appropriate intervals. The front end, which is the front part of the transporting means 13, is driven to rotate along the outer surface of the feeder house 11 via a transmission unit such as a chain from a transmission case (not shown) of the traveling machine body 2 for scraping described later. The harvested culm from the auger 18 is conveyed to the threshing unit 6 by a cereal culm conveying means along the bottom plate of the feeder house 11 which is inclined rearward and upward.

The pre-cutting device 10 comprises a rectangular tubular insertion frame 15 communicating with the front opening of the feeder house 11.
And a bucket-shaped platform 17 which is detachably attached to the insertion frame 15 and extends left and right over the entire width of the traveling machine body 2. The feeder house 11 is provided at approximately half of the left and right longitudinal directions of the platform 17. It is configured such that a so-called rolling angle adjustment that can be vertically rotated with respect to the front end is enabled.

On the lower surface side of the platform 17, a clipper-like cutting blade 16 extending in the left and right direction is provided.
Above the bottom plate, a horizontally agitated auger 18 that rotates in the direction of the arrow in FIG. 1 is mounted between the left and right side walls 17a and 17b of the platform 17, and from the transmission unit via a horizontal transmission shaft with a universal joint. The axle 18 of the auger 18
a is driven to rotate, and the cutting blade 16 is driven. The right and left side walls 17 of the platform 17
At the front end of a, 17b, the weeds 19, 19 protrude forward.

Scratch reel 21 with tine bar 20
Is mounted on both ends of a left and right longitudinal support shaft rotatably supported on the upper surface of the rear end of the platform 17 and rotatably mounted on the front ends of forward-moving elevating arms 22 and 22, and has a universal joint (not shown) from the transmission unit. The pivot 23 of the raking reel 21 is driven to rotate in the direction of the arrow in FIG. 2 via the lateral transmission unit.

The raking reel 21 is mounted on the elevating arm 22 via a link mechanism or the like so that the longitudinal position thereof can be adjusted. The railing hydraulic cylinders 24, 24 move the raking reel 21 to the platform 17. Adjust the relative elevation. The right end of the raking reel 21 is
While being arranged close to the right side wall 17b of the platform 17, an appropriate width dimension (H) is provided between the left end of the raking reel 21 and the left side wall 17a as shown in FIG.
Is formed.

Reference numeral 30 shown in FIGS. 1 to 4 denotes a weeding device provided on the upper surface side of the left side wall 17a of the platform 17, and reference numeral 31 denotes a grain stem raising device arranged in the gap space 25. Each of the axles 18 of the auger 18
a to the input shafts 33 and 3 via a transmission 32 such as a chain.
4, respectively. The transmission 32 is disposed in a case 35 on the outer surface of the left side wall 17a.

The weeding device 30 is provided with a case 36 inclined such that the front end is located above the front end in a longitudinal direction along the left side wall 17a and the rear end is located above the front end. , 38, a plurality of raised tines 40 are rotatably connected to a chain 39 wound around the chain 39, and each raised tine 40 stands on the upper surface side of the case 36 outwardly of the winding radius. The case 36 is configured to lie down on the lower surface side, and is configured to move in the direction of arrow A in FIG.

On the other hand, on the front side of the traveling machine body 2 in the forward direction, the front side of the case 45 in the grain stem raising device 31 is at a low position, and the rear side is arranged at a high inclination behind and is wound around the pulleys 42, 43 in the case 45. A plurality of raising tines 41 of the grain stem raising device 31 are directly attached to the chain 44 while standing up, and each raising tine 41 faces one side end of the raking reel 21 on one side of the case 45. And moves in the direction of arrow B (FIG. 4).
reference).

With this configuration, when the traveling machine body 2 is advanced for cutting and threshing work, the grain culm having a root outside the left side wall 17a of the platform 17 (lower side in FIG. 1) has its spike tip side from the left side wall 17a. Inside (upper side of Fig. 1)
Even if it lays down in the direction, the weeding tine 40 in the weeding device 30 is slanted upward and rearwardly moved so that the tip side comes outside the left side wall 17a.

On the other hand, the left and right side walls 1 of the platform 17
Of the grain stems having a root between 7a and 17b, the lodging grain stem located at the space 25 is separated from the left side wall 17a by the raising tine 41 in the grain stem raising device 31, and the raking reel 21 is moved away from the left side wall 17a. It is woken up so that it approaches one side end. As a result, even if the spike tip side of the cereal stalk having a root outside the left side wall 17a is laid down so as to hang down inside the left side wall 17a, the spike tip side is raised by the raising tine 40 in the weeding device 30. When raised upward, since there is no obstacle due to the presence of the gap space 25, the grass is swiftly sown and the roots of the grain stalks cut by the cutting blade 16 are sent to the feeder house 11 by the scraping auger 18. .

Therefore, as in the prior art, the left side wall 17a
There is one side end of the raking reel 21 near the inner surface of the seedling, and the spike side of the cereal stem raised by the weeding device is the same as when the weeding device is provided on the left side wall 17a. The inconvenience of being scraped downward in the direction opposite to the raising direction is eliminated. When the operation is performed with the grain stem raising device 31 removed, an extension reel 46 may be attached to one end of the raking reel 21 as shown by a two-dot chain line in FIG.

[0018]

[Operation and effect of the present invention] As described in detail above, the present invention
A weeding device having a plurality of raising tines protruding upward and moving rearward is disposed on one side wall of the platform of the pre-cutting device in a rearwardly inclined manner, while the weeding device and the scraping in the platform are arranged. The left and right lengths of the raking reel are formed to be short so as to form a clearance space of an appropriate width between one end of the reel and the clearance space. A grain stem raising device having a plurality of raising tines that are inclined so that the end is located above the front end, and protrude in a direction facing one side end of the raking reel and move rearward is provided. Therefore, when the tip side of the falling grain stalk is raised upward by the raising tine in the weeding device, the grass is swiftly sown because there is no obstacle due to the clearance space.

Further, in the grain stalk raising device arranged in the clearance space, the grain stalk laid down by the raising tine moving away from one side wall of the platform is moved toward the scraping auger located behind the grain stalk. It can be scraped securely.
Therefore, as in the prior art, there is one side end of the raking reel near the inner surface of one side wall of the platform, and it is raised by the weeding device as when a weeding device is provided on one side wall. This has the effect of eliminating the inconvenience that the spike tip side of the grain stalk is scraped downward by the scraping reel in the direction opposite to the pulling direction.

[Brief description of the drawings]

FIG. 1 is a plan view of a combine.

FIG. 2 is a side view of the pre-cutting device.

FIG. 3 is a side view of the weeding device.

FIG. 4 is a plan view of a weeding device and a raising device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combine 10 Cutting pretreatment device 16 Cutting blade 17 Platform 17a Left side wall 18 Raised auger 21 Raised reel 25 Clearance space 30 Weeding device 31 Grain stalk raising device 40, 41 Raised tine

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazuto Ando 1-32 Chaya-cho, Kita-ku, Osaka-shi Inside Yanmar Agricultural Machinery Co., Ltd. (56) References JP-A 1-2222720 (JP, A) 1-125033 (JP, U) Fully open 63-19836 (JP, U) Fully open 63-177126 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01D 63/00 -65/08 A01D 57/00-57/32

Claims (1)

(57) [Scope of request for utility model registration] 1. A cutting pre-processing device having a bucket-shaped platform extending in the left and right direction over the entire width of the traveling machine body, a left and right longitudinal scraping reel, a cutting blade, and a scraping auger at a front portion of the traveling machine body. In the combine which is freely mounted, on one side wall of the platform,
Provided with a weeding device having a plurality of protruding tines that are longitudinally and longitudinally, and are inclined so that the rear end is located above the front end, and protrude upward and move rearward,
A clearance space of an appropriate width is formed between the one side end of the take-up reel in the platform, and a rear end of the clearance space is located at a position closer to the one side wall of the platform, and a rear end thereof is located above the front end. A harvesting device having a plurality of raising stems having a plurality of raising tines that are tilted so as to be positioned and protrude in a direction facing one side end of the raking reel and move backward. Pretreatment device.