JPS6242678Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a weed pulling device in the reaping section of a combine harvester.

In other words, a weeding case equipped with tines that face in the front-rear direction and rotate from the bottom to the top is installed on the front side of the pulling case that is equipped with tines that face in the horizontal direction and rotate from the bottom to the top. In the reaping section of the combine harvester, the section in front of the reaping section is used to raise the planted grain culms that are laterally collapsed or tangled so that they can be weeded properly. Grass division with a grass board and grass division and pulling in the reaping part of a combine harvester to ensure that the tines of the weeding case will continue to divide and raise the planted grain culms immediately after the grass has been parted with the grass board. The aim is to provide equipment.

The embodiments shown in the drawings will be described below.

FIG. 1 shows a side view of the front part of the combine harvester. In front of the threshing section D on the machine body supported by the crawler 5, there are a cutting blade 6, a lower conveyance chain 7, a raking belt 8,
A reaping section E equipped with an ear tip conveyor 9 and the like is installed, and the grain culm can be transferred and supplied to the feed chain 11 of the threshing section D by a vertical conveyance chain 10 at the rear of the reaping section E.

At the front of the reaping section E, three rearwardly tilted lifting cases A are installed side by side, and each lifting case A is equipped with tines 1 that face laterally and rotate from below to above. Both intermediate lifting cases A, A are installed so that the respective tines 1 correspond to each other, and tine 1 of the right lifting case A is installed so that it rotates corresponding to the side of the intermediate lifting case A. The gearboxes 12 connected to the rear of the upper part of each hoisting case A are connected to the horizontal pipe 1.
A gear box 14 is connected to the left side of the left gear box 12 and is connected to the gear box 12 by 3 and 13, respectively.
There is a transmission pipe 1 extending from the rear of the reaping part E.
5, and installed so that power can be transmitted from inside the gearbox 14 to each hoisting case A through a transverse transmission shaft 16 extending into each gearbox 12 and pipe 13, The lower part of each lifting case A is supported by a stay 18 from each reaping frame 17 below the reaping part E.

Grass dividing cases B and B are installed obliquely on the left front of the left pulling case A and the right front of the middle lifting case A, respectively. It is equipped with tines 2 and 2 that rotate and protrude from the front lower part to the front upper part, respectively, and the grain culms can be guided on the inner surfaces over a long range from the lower part to the upper part of both weeding cases B and B. The front ends of the support guide plates 19, 19 are removably connected with bolts 20, and the rear ends of both support guide plates 19, 19 are both pulled up and can be removably attached to the front surfaces of the cases A, A through the bolts 20. The weeding cases B and B are installed and configured so that the weeding cases B and B can be supported from the connected and raised cases A and A side.

The pipes 3, 3 are connected to the corresponding sides of the upper parts of both weeding cases B, B, respectively, and both pipes 3,
Flanges 21, 21 formed at the tips of 3, respectively.
are removably connected with bolt nuts 22, and a short pipe 23 is connected to the upper left side of the left weeding case B, and from this pipe 23 into the upper part of both weeding cases B, B and into both pipes 3, 3. The transmission shaft 4 is extended, and sprockets 25, 25, which surround the chain 24 for driving the tines 2, are fitted to the transmission shaft 4 at the upper parts of the two split cases B, B. The inner power transmission shaft 4 is separated at the portions 21 and 21, and a male spline shaft 26 is attached to one side.
On the other hand, a female spline portion 27 that can be spline-fitted to the male spline shaft 26 is formed.

Further, a tip flange 29 of the pipe 23 is removably connected to the front side surface of the transmission case 28 whose rear end is connected to the gear box 14 with a bolt 30, and the transmission shaft is passed through the transmission case 28 from the transmission shaft 16. 4, and the distal end side of a stay 31 connected to the upper right side of the right side weeding case B is detachably connected to the pipe 13 via a clamp 32.

Note that a removable lid 40 is attached to the gearbox 14.

Grass dividing plates C, C located on the lower outer sides of both grass dividing cases B, B are removably attached to each reaping frame 17, and this grass dividing plate C is located on the upper surface of the front side. is made into a gently sloping surface 33, and the upper surface of the rear side 35 is made into a steeply sloping surface 33a, forming a triangular shape when viewed from the side with a low front and rear height, and the steeply sloping surface 33 of the grass board C
Connection part a where a is continuous to the gently sloped surface 33 on the front side
The part closer to the rear edge 35 covers the lower part of the weeding case B where the tines 2 rotate, and this lower part protrudes from the part of the tine 2 which rotates upward. As shown in FIG. 1, when the protruding posture is viewed from the side, the extension line
It is set to match Y.

Further, a notch 34 that opens inward is formed in the front part of the connection part a of the grass dividing board C, and the tines 2 are installed so that they can rotate upward in a protruding posture from within this notch 34. be.

Further, the rear side 35 of the left grass dividing plate C is formed to extend so as to cover the lower side of the grass dividing case B and the outer side of the raising case A. Attach the rear end to the rear cover 3 via the bolt 36.
7, a grass divider rod 38 is installed in front between the left and middle lifting cases A, and a grass divider plate 39 is installed in the right front of case A. Configure.

Therefore, during combine harvester work, as the machine moves forward, each grass dividing plate C, C and 39 and grass dividing rod 3
After the weeding plates C and C have weeded the planted grain culms which are horizontally lodging or intertwined due to the weeding action of No. 8,
The tines 2, 2 of the weeding case B, B rotate from below to the top and raise the stem culm in a front-back posture, and the tine 1 of the case A, A pulls up the culm. , 1 pulls up the weeds and transports them to the rear threshing section D while harvesting them with the cutting blades 6 and performs the combine harvesting operation. The lower part of the grass cutting case B on the left side, which is the uncut side of the machine, and the lower side of the pulling case A are separated. The rear edge 35 of the grass board C covers a wide range of the top and bottom of the grass board C, so that the uncut grain culms are not pushed outward and caught, and the cutout in the grass board C is prevented. The tines 2 of the weed cutting case B continue to sweep and pull up the grass that has been parted by the weed cutting plate C, with the rear side of the weed cutting case B facing upward from below.
In this case, when transferring the grass from the grass dividing plate C to the tines 2, the protruding posture of the tines 2 coincides with the extension line X-Y of the gently sloped surface 33 on the front side of the grass dividing plate C when viewed from the side. The grain culms separated by the weeding process are transferred by being placed on the tines 2, and the transfer is smooth and reliable, and the grain culms are not spilled and are carried out in an orderly manner.

In this way, the present invention has two tines 2 facing in the front-rear direction and rotating from the bottom to the top on the front side of the lifting case A, which is equipped with tines 1 that face laterally and rotate from below to above. Grass division case B equipped with
In the reaping section of the combine, the grass dividing plate C is positioned on the outer side of the lower part of the grass dividing case B, and the upper surface of the front part of the grass dividing plate C is placed on the gently sloped surface 3.
3, the upper surface of the rear wall 35 is made into a steeply sloped surface 33a to form a triangular shape when viewed from the side with a low front and rear height, and the steeply sloped surface 33a of the grass board C is connected to the gently sloped surface 33. The protruding posture of the tines 2, which cover the lower side of the grass dividing case B with the part closer to the rear edge 35 than part a, and which protrudes from the lower side and rotates upward, is shown laterally. Since it is configured so as to match the extension line X-Y of the gentle slope 33 when viewed from above, it is possible to raise and raise planted grain culms that are laterally collapsed or tangled so as to properly separate the grass. In particular, since the upper surface of the front side of the weeding plate C is formed with a gently sloped surface 33, the resistance of the grain culms being weeded when they are laid down or tangled is reduced. Grass is now divided smoothly without any problems, and the divided grain culm is aligned with the extension line X- of the gently sloped surface 33 on the front side.
Tine 2 rotates upward in a protruding posture consistent with Y
Grass division board C is handed down as if it were placed on top of the grain, making the transfer smooth and reliable, with no spillage of grains, and in an orderly manner.Furthermore, the dividing board C is triangular in shape when viewed from the side with a low front and a high rear. Therefore, the lower part of the left weeding case B, which is the uncut side of the machine, covers a wide area of the upper and lower sides of the running part, pushing the uncut grain culms outward. It has a number of effects, such as not having to worry about it.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the front of the combine harvester, FIG. 2 is a front view of the front of the reaping section, FIG. 3 is a plan view of a part thereof, and FIG. Third
It is a sectional view of a part of the figure. Explanation of symbols for main parts, 1, 2...Tine, A...
Raising case, B... Grass dividing case, C... Grass dividing board, 33... Gentle slope, 33a... Steep slope, a
... Connection part, 35 ... Rear side, X-Y ... Extension line.

Claims (1)

[Scope of utility model registration request] On the front side of the lifting case A, which is equipped with tines 1 that face laterally and rotate from the bottom to the top,
A grass dividing plate located on the lower outer side of the grass dividing case B in a reaping section of a combine equipped with a grass dividing case B equipped with tines 2 that face in the front-rear direction and rotate from below to upward. C is formed into a triangular shape when viewed from the side with a low front and rear height, with the upper surface of the front side being a gently sloped surface 33 and the upper surface of the rear side 35 being a steeply sloped surface 33a, and the grass board C steep slope 33a of
covers the lower side of the grass dividing case B at the rear edge 35 side of the connection part a continuous with the gently sloped surface 33, and this lower part protrudes from the side of the grass distribution case and rotates upward. A weed pulling device in a reaping section of a combine harvester, characterized in that the protruding posture of the tines 2 is made to match the extension line X-Y of the gently sloped surface 33 when viewed from the side.