JPS6245565Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a self-propelled, self-extracting combine harvester.
This invention relates to a device for arranging the waste straw so that the base portions of the straw are lined up substantially in a straight line when bundling appropriate amounts of waste straw after harvesting and threshing.

In general, a combine harvester harvests the grain stalks planted in the field, collects them in a row, and threshes the grains while conveying them to a plurality of various clamping and conveying mechanisms. The straw inevitably becomes uneven due to a change in the relative position of the grain culm inheritance part or during threshing, and it is difficult to concentrate and bundle the straw in an appropriate amount as it is.If the tip of the straw is uneven, the binding position will shift and become uneven If the bundling is complete, especially if the stem ends of the tied waste straw are uneven, it will not be possible to perform so-called three-dimensional release, in which the tied waste straw is released into the field in an upright manner with the stem part facing down. Furthermore, since the reaping height is changed depending on the field situation, the length of the reaped grain culm also differs.

In the present invention, the stock base of the straw grain culm is more rigid than the ear tip, so it is easy to align the grain culm, and it is easy to align the stock base depending on the length of the grain culm. In view of this, the stock alignment plate can be adjusted in stages to freely move closer and closer to the bundling device.

Next, the present invention will be explained based on an example. In the figure, 1 indicates a self-propelled, self-eliminating combine harvester body;
A straw removal chain 2 extending rearward from a threshing section (not shown) is disposed on its upper surface. Reference numerals 3 and 3 denote left and right side plates that protrude rearward from the rear end of the combine main body 1.

Cover case 4 installed at the rear of combine main body 1
Inside, the waste straw 7 sent from the straw removal chain 2 along the inclined guide deck plates 5, 6 is collected in an appropriate amount and then bundled and placed on the guide deck plates 5, 6.
A conventionally known straw bundling mechanism 8 for discharging the straw backwards along the top is provided.

This straw removal bundling mechanism 8 has an L-shaped side transmission case 9.
, a bearing case 10 protruding from the upper side of the transmission case 9 , a binding part 12 attached to the tip of the knotted shaft 11 rotatably supported within the bearing case 10 , and a binding part 12 attached to the lower part of the side of the transmission case 9 . It consists of an input shaft 13 which is supported in parallel with the input shaft 13, a clutch shaft 14, and a converging part 16 attached to the tip of the door shaft 15. The bearing case 10 is equipped with ejection arms 17, 18, 19 that swing in response to the rotation of the nodal shaft 11, and the focusing section 16 is equipped with a swinging packer 20, a needle 21, and a door 22. is provided so as to protrude upward from between the guide deck plates 5 and 6, and when the door 22 rotates rearward, power is transmitted to the needle 21, the binding part 12 and the discharge arms 17, 18, 19. A clutch (not shown) is configured to enter and bind the waste straw.

A shutter shaft 23 is pivotally supported substantially parallel to the input shaft 13 on the lower surface of the stock guide deck plate 5 located closer to the straw stock head among the guide deck boards 5 and 6, and the guide deck is mounted on the shutter shaft 23. A plurality of shutters 24 projecting from the top surface of the plate 5
The shutter 24 is rotatably supported by a torsion spring (not shown), and the straw bundle 25 is removed from the front of the shutter 24.
It is configured to rotate backward against the spring force due to the release force, and to stand up substantially parallel to the door 22 when the release force is released.

Reference numeral 26 denotes a stock alignment plate located on a side of the stock guide deck plate 5 further away from the side surface away from the transmission case 9, and a support shaft is attached to the bracket 28 attached to the horizontal shaft 27 etc. at the rear end of the combine main body 1. 2
9 is erected substantially perpendicularly to the upper surface of the stock guide deck plate 5, and the base boss 30 of the alignment plate 26 is fitted onto the support shaft 29 so as to be vertically slidable and rotatable. The front surface near the tip of the alignment plate 26 is extended in the direction in which the waste straw 7 is fed by the stock guide deck plate 5, and the alignment plate 26 is configured to be adjustable stepwise in the direction approaching the waste straw culm. . For example, in this embodiment, the spring 31 is biased so that the front surface of the alignment plate 26 near the tip presses against the side surface of the stock guide decking plate 5 or approaches the culm direction on the upper surface of the decking plate 5, and The shaft 29 is provided with support pins 32a, so that the lower end of the alignment plate 26 can be selectively held in a position below the upper surface of the stock guide deck plate 5 and a position above the upper surface.
32b, 32a' and 32b' are passed through, and an arc-shaped guide groove 33 is bored in the bracket 28 that supports the support shaft 29, and a stopper pin 34 is erected in this groove 33 so that its position can be freely adjusted with nuts 35, 35. Then, the alignment plate 26 is fixed by the stopper pin 34.
The front surface near the tip of the culm can be held and regulated in a position closer to the tip of the culm or a position farther away depending on the length of the culm.

With this configuration, the straw 7 sent out from the end of the straw removal chain 2 onto the guide deck plates 5 and 6 is sequentially focused on the front surface of the door 22 by the rocking movement of the packer 20 caused by the rotation of the input shaft 13. By repeating this, the amount of collected waste straw on the front part of the door 22 increases and when it reaches the specified amount, the police car 20 rotates the door 22 rearward via the collected straw, and in conjunction with this, the needle 21 and the building (Fig. (not shown), the collected waste straw is passed around a string and then bundled, and during this binding, the discharge arms 17, 18, 19 are retreated toward the rear of the guide deck plates 5, 6, and the waste straw bundle 25 is passed through the guide deck plates 5, 6. 6, and the shutter 24 falls backwards accordingly.

At this time, if the harvested grain culm is short, the second
As shown by the two-dot chain line in Figs.
is moved upward along the support shaft 29 so that its lower end is above the upper surface of the stock guide deck plate 5, and is held in position by the support pins 32a' and 32b', while the alignment plate 26 is moved by the stopper pin 34 If the front surface near the tip of the straw is regulated so that there is a gap of about 3 cm between the side surface of the shutter 24 and the side surface of the shutter 24, the strainer of the straw 7 sent onto the strainer guide deck plate 5 can be placed along the front surface of the aligning plate 26. It moves to the tip side and can be collected and bundled with the stock base aligned in a substantially straight line.

On the other hand, if the grain culm is long, as shown by the solid line in FIGS. 2 to 4, the support pins 3 are moved so that the front lower part of the alignment plate 26 is in contact with the side surface of the stock guide deck plate 5.
By simply changing the positions of 2a and 32b, the stock bases can be aligned and bundled in the same way.

In the above embodiment, the side surface of the stock guide deck plate 5 is used as a stopper for regulating the position, but instead of this, a short stopper pin is installed in the groove 33 of the bracket 28 at a position close to the front surface of the alignment plate 26. may be erected to regulate the alignment position of the long waste straw, and a long stopper pin may be erected behind the short stopper pin to regulate the alignment position of the short waste straw. , a plurality of stoppers, which the alignment plate 26 comes into contact with due to its elastic bias, are arranged at different heights along the swinging direction of the alignment plate.

In summary, according to the present invention, the alignment plate, which is biased toward the culm of the waste straw, is configured to be able to move up and down approximately perpendicular to the upper surface of the stock guide deck plate, and the alignment plate is moved along the swinging direction of the alignment plate. Since a plurality of stoppers at different heights are provided at the front position, the alignment plate can be regulated to the selected stopper position by simply adjusting the vertical position of the alignment plate, and the front surface of the alignment plate can be aligned along the culm direction. Therefore, the front and back positions can be held in stages, and the arrangement of the alignment plates can be changed very easily depending on the length of the straw.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of the rear part of the combine main body, and FIG. 2 is a side view of the main body of the combine, and FIG.
FIG. 3 is a line plan view taken along the line shown in FIG. 1... Combine main body, 2... Straw removal chain,
5, 6... Guide deck plate, 8... Straw removal bundling mechanism, 9... Transmission case, 12... Binding part, 16...
... Focusing section, 17, 18, 19 ... Ejection arm, 2
0...Pack car, 21...Needle, 22...Door, 24...Shutter, 26...Alignment plate, 28...
... Bracket, 29 ... Support shaft, 34 ... Stopper pin, 32a, 32a', 32b, 32b' ... Support pin, 31 ... Spring.

Claims (1)

[Scope of utility model registration request] A straw removal bundling device comprising a bundling part and a swinging type discharge arm for bundling straw on one side and a packer and a needle on the other side, sandwiching the top and bottom of a guide deck board for removing straw, wherein the straw removal on the guide deck board A stock alignment plate that swings in the direction of the culm of the waste straw is arranged on the side of the stem side, and the alignment plate is elastically biased toward the bundling device, and the alignment plate is moved toward the guide deck. The plate is configured to be movable up and down in a direction substantially perpendicular to the upper surface of the plate, and a plurality of stoppers with which the alignment plate comes into contact with elastic bias are arranged at different heights along the swinging direction of the alignment plate. Stock alignment device for waste straw bundling.