JPH0453483B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a reaping machine for reaping grain culms planted in a field.

[Prior art] There are many types of reapers depending on the number of cutting rows, ranging from small machines that cut two rows to large machines that cut five or six rows. In addition, the width of the cutting part including the cutting blade is different. Of these, when comparing 3-row mowing and 4-row mowing, which are relatively in high demand, the number of grasses that push through the grain culms in the field is 4 in 3-row mowing and 5 in 4-row mowing, and the number of grasses that have fallen down is 4. There were three pulling devices for raising the culm in the three-row cutting, and four in the four-row cutting.

On the other hand, there is a structure in which one reaping unit is connected to the side of another reaping unit, as proposed in Japanese Patent Application Laid-Open No. 129724/1983.

[Problem to be solved by the invention]

However, in the former case, 3-row cutting and 4-row cutting
Row cutting and row cutting have different configurations and dimensions, making design and inventory management complicated for manufacturers, and for users, the resulting rise in machine prices only increases harvesting costs. Therefore, when changing the scale of cultivation, etc., it was necessary to purchase new machinery. On the other hand, the latter structure not only has a complicated structure because it requires a connecting tool to connect the reaping units, but also makes it difficult to maintain the strength of the connecting portion, leading to frequent failures. Also, it looks really bad.

[Means to solve the problem]

The present invention has been made in order to eliminate the above-mentioned problems, and includes a reaping frame supported on the movable side and extending forward, and a central part fixed to the front end of the reaping frame in a T-shape and extending in the width direction of the machine. a gearbox, a pair of end gearboxes disposed concentrically on both sides of the central gearbox in the axial direction, and a pair of end gearboxes formed concentrically with each of the end gearboxes and connected to each of the end gearboxes and the central gearbox. A removable transmission pipe that can be selectively interposed or not interposed between the transmission pipes, and a pair of branching rod stays fixed to the gearboxes at each end to support the transmission pipes at both ends and parallel to the central gearbox. An extendable horizontal member that extends in the width direction of the machine and holds a plurality of dividing rods, some of which are removable, is provided.

[Effect]

For example, when changing from a 3-row mower to a 4-row mower, the one end gearbox and the central gearbox are uncoupled, the internal transmission shaft with a transmission pipe interposed between them is connected, and the weeding rod is It is possible to handle four-row mowing by adding a puller or a pulling device, or by extending the horizontal members, cutting blades, etc.

〔Example〕

1 to 4 show an embodiment of the reaping machine according to the present invention, FIG. 1 is a side view of a combine harvester in which this is implemented, and FIG. The side view, Figure 3, is also a plan view, Figure 4.
The figure is a plan view of a four-row mower obtained by adding and replacing some parts to the three-row mower shown in FIG. 3. In these figures, a threshing machine 4 is mounted on a running frame 3 that supports left and right running crawlers 2 of the combine 1, and a driver's seat 5 and various An operating device 6 equipped with operating levers is disposed at the front and rear.

A reaping support pipe 7 is mounted on an upper front end of the threshing machine 4, and a reaping drive shaft 8 that is rotated by being driven from the driving side is supported through the reaping support pipe 7. Further, from the reaping gear box 9 which is swingably supported on the reaping support pipe 7, a pipe-shaped reaping frame 11 which supports the main part of the reaping machine, which is indicated as a whole by reference numeral 10, is connected.
is integrally formed and extends diagonally forward, and a transmission shaft, which is drivingly connected to the reaping drive shaft 8 by a bevel gear in the reaping gear box 9, is penetratingly supported in the reaping frame 11. . code 1
4 is a central gearbox that is perpendicular to the reaping frame 11 so as to form an inverted T-shape and is fixed to the lower end thereof.In the three-row mower shown in FIG. End gearboxes 13 are flanged at three locations via 12 and attached to both ends.
A and 13B are fixed, and in the four-row mower shown in FIG. The length is longer than when cutting three rows. First, to explain the machine for 3-row cutting, a central gearbox 1 is installed between the transmission pipe 12 and the end gearboxes 13A and 13B and the transmission shaft in the reaping frame 11.
A lifting drive shaft, which is drive-connected by a bevel gear in 4, is supported through the shaft, and a branching rod stay 15 is provided diagonally downward and protrudes from one end of one end gear box 13B. What is indicated by the reference numeral 16 is a horizontal member 16a extending in the width direction of the machine, and four branching rods 16 extending forward from this along the ground.
b, 16c, 16d, and 16e in a fork shape, and the weeding rod 1 at one end
Only the branching rod 6e is formed longer than the other branching rods 16b, 16c, and 16d. Therefore, the weeding frame 16 is fixed to the reaping frame 11 by the weeding rod stay 15 and the weeding rod 16e located at the end via the gearbox and the transmission pipe. At the front end of each of the weeding rods 16b to 16e constituting the weeding frame 16, a weeding body 17 for scraping the grain culms in the field is fixed, and at the rear of the weeding frame 16, a clipper-shaped part is fixed. The cutting blade 18 is the cutting rod 16
b to 16e and extend in the machine width direction.

A lifting pipe 19 is connected to the end gearboxes 13A, 13B and the central gearbox 14 and extends obliquely upward, and a gearbox 13A, 13B, 14 is provided in each lifting pipe 19.
A transmission shaft, which is drivingly connected to the inner lifting drive shaft by a bevel gear, is supported through the shaft. The three lifting devices 20, 21, and 22 are erected with the upper ends of the cases 20a to 22a supported by the above-mentioned lifting pipe 19 and inclined rearward, and the lower ends of the cases 20a to 22a are connected to the stays 23 It is supported by the weeding rods 16b, 16c, and 16e of the weeding frame 16 via. Inside each of the cases 20a to 22a, an endless band 22e is stretched, which is provided with a large number of lugs 22d at regular intervals and is driven from the transmission shaft side in the pulling pipe 19. As the endless band 22e runs, the lugs 22d The structure is such that the tip of the grain culm is lifted up and conveyed to make the grain culm stand up.

What is indicated by the reference numeral 24 is an endless raking band that conveys the root part of the grain culm raised by the lifting devices 20 to 22 to the cutting position by the cutting blade 18, and the pair of left and right sides are arranged in a V-shape. The reaping frame 1 is supported on the reaping frame 12 side via the endless transport belt 25
Driven from the first side. A pair of right and left ear tip conveying devices (front) 26 for conveying the tips of harvested grain culms are arranged in a V-shape above the endless conveying belt 25, and above them, a pair of left and right ear tip conveying devices (front) 26 are arranged to take over the conveyed ear tips. An ear tip conveying device (rear) 27 for conveying the ears is supported and mounted on a support rod 28 protruding from the reaping support tube 7. Furthermore, a root conveying device 29 that conveys the root portion of the grain culm taken over from the endless conveying belt 25 is mounted diagonally below the ear tip conveying device (rear) 27 and is supported by a support rod 28 .

In the three-row mower configured as above,
As the machine advances, the three rows of grain culms planted in the field are swept away by the weeding rod 17 and then moved to the adjacent weeding rod 16b.
The lugs 22 are guided one by one between ~16e and circulate.
The tips of the ears are scooped up and conveyed at step d.
In this case, two grain culms are erected in the raising passage where the lugs 21d, 22d of the raising devices 21, 22 face each other, and the remaining grain culm is raised by the raising device 20. The grain culms are transported by an endless band 24, where the tips of the grains are pulled up and the roots are raked, and then the cutting blades 18
The tips of the ears are pulled up by devices 20, 21, 2.
At the same time as being released from 2, the tip conveying device (front) 2
6 and the endless conveying belt 25, the tip portion and the root portion are respectively captured and conveyed. Thereafter, the grain culms in the three rows merge into the first row and are transported to the threshing machine 4 by both transport devices 27 and 29, where they are threshed.

Next, the configuration of the four-row mower shown in FIG. 4 will be explained. In the 4-row mowing reaper 10A, those with the same reference numerals as in FIG.
In contrast to the case where the center gearbox 14 and the end gearbox 13B were directly attached in the case of 0, a conduction pipe 12 is also interposed between both gearboxes 13B and 14, and the whole unit extends in the width direction of the machine. . In addition, the horizontal member 16 of the weeding frame 16A
f is the weeding rod 1 that is lower than the horizontal member 16a of the three-row mower.
A length equal to the distance between 6c and 16d is used, and a dividing rod 16g is added. Similarly, a long cutting blade 18A is used. As for the pulling device, a pulling device 30 having the same configuration is added between the pulling devices 20 and 21 of the three-row mower, and a T-shaped stay 23A is used to support this. Also, a lifting pipe 1 supporting the upper end of the lifting device 30 is provided.
9A is similarly T-shaped, and the transmission shaft passing through it is branched in the middle, so that the pulling devices 21 and 30 are driven from the same transmission shaft side. Further, the V-shaped angle between the endless raking band 24 and the front tip conveying device 26 shown in FIG. 1 is widened toward the operating device 6, so that the starting end of the conveyance corresponds to the weeding path and the raising path.

In the 4-row mower configured in this way, 4
After the grain culms of the rows are guided one by one between adjacent vertical members of the dividing rod 16A, two of the rows are pulled up by the pulling devices 20 and 30, and the other two rows are pulled up by the three-row mower. Similarly, it is raised by the raising devices 21 and 22. The other operations are the same as those of the three-row mower, so the explanation thereof will be omitted.

In this example, an example was shown in which a 3-row mower was changed to a 4-row mower by sharing most of the parts, but a similar 3-row mower could be changed to a 5-row mower. The number of rows to be cut can be changed, such as changing from a four-row mower to a five-row mower.
Furthermore, the configurations of the lifting devices 20, 21, 22, 30 and their driving devices are not limited to those shown in this embodiment.
- As filed in No. 161597, etc., an auxiliary lifting device shorter and smaller than this is provided between a pair of main lifting devices arranged in parallel in a V shape, and is driven by a drive system separate from the main lifting device. The same method can be applied to a 3- to 4-row mower.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, in a reaping machine, the reaping frame is supported on the machine base side and extends forward, and the reaping frame is fixed to the front end of the reaping frame in a T-shape and extends in the width direction of the machine. an extending central gearbox; a pair of end gearboxes disposed concentrically on both sides of the central gearbox in the axial direction; a removable transmission pipe that is connected to and selectively interposed or not interposed therebetween, and a central gearbox whose both ends are supported by a pair of branching rod stays fixed to each end gearbox. By providing a retractable horizontal member that extends parallel to the width direction of the machine and holds multiple dividing rods, some of which can be attached and detached, most parts can be used interchangeably and some parts have been added. The number of reaping rows can be increased or decreased by simply changing or replacing the reaper, which is extremely easy and has the same structure as a dedicated reaper, making design and inventory management easier for the manufacturer and reducing the amount of inventory. This can reduce the manufacturing cost of the machine. Further, since no complicated connecting members are required, the structure is not only simple, but there is no problem in terms of strength.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the reaping machine according to the present invention, FIG. 1 is a side view of a combine harvester implementing this, and FIG. 2 is a side view of the reaping machine without the raking and conveying devices. 3 is a plan view, and FIG. 4 is a plan view of a four-row mower obtained by adding and replacing some parts to the three-row mower shown in FIG. 3. 10, 10a... Reaping machine, 11... Reaping frame, 12... Conduction pipe, 13A, 13B... End gearbox, 14... Central gearbox, 1
6a, f...Horizontal member, 16b-e, g... Branching rod.

Claims (1)

[Claims] 1. A reaping frame 11 whose base end is swingably supported on the machine body side and extends in the longitudinal direction, and a central gear box fixed to the front end of the reaping frame 11 to form a T shape with the reaping frame 11 and extending in the width direction of the machine. 14 and
A pair of end gearboxes 13 are arranged concentrically on both sides of the central gearbox 14 in the axial direction.
A, 13B and each end gearbox 13
A removable transmission pipe 12 formed concentrically with the end gearboxes 13A, 13B and connected to the central gearbox 14 and selectively interposed or not interposed therebetween;
A pair of branching rod stays 15 are fixed to each of the end gearboxes 13A, 13B, and a plurality of branching rod stays 15 are supported at both ends by these branching rod stays 15 and extend in the width direction of the machine in parallel with the central gearbox 14. Multiple branching rods 16b, 16c, 16d that can be attached and detached
A reaping machine characterized by being provided with an extensible horizontal member 16a for holding.