JPH0414986Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an amplitude adjusting device for a swinging sorter in a threshing machine that is capable of adjusting the sorting state of the swinging sorter below the handling chamber.

[Prior Art] Conventionally, in a threshing machine configured by linking a swing arm to which an eccentric drive wheel is rotatably fitted to a swing sorting body below the handling chamber, the eccentric drive wheel is connected to a rotation drive shaft. Therefore, in order to adjust the amplitude of the oscillating sorting body, the eccentric drive wheel fitted on the rotary drive shaft had to be replaced.

[Problems to be solved by the invention] The invention enables amplitude adjustment without replacing the eccentric drive wheels, and can be easily adjusted by simply changing the connection state. To provide a device which has a simple structure without being large in size, and which can perform rocking reliably and well as in the prior art, and can be suitably implemented.

[Means for Solving the Problems] Therefore, in the present invention, an elongated hole is formed in the eccentric drive wheel into which the rotary drive shaft can be fitted loosely, and the eccentric wheel fitted and fixed onto the rotary drive shaft is inserted into the eccentric drive wheel. On the other hand, they are constructed by being fixed side by side so that their relative positions can be changed.

[Operation] Therefore, by shifting and fixing the eccentric drive wheel with respect to the eccentric shaft that is still fitted and fixed to the rotation drive shaft, it becomes possible to adjust the eccentric state of the eccentric drive wheel with respect to the rotation drive shaft. , the swinging amplitude of the swinging sorter can be adjusted.

[Example] Next, an example shown in the drawings will be described. FIG. 8 shows a side sectional view of a threshing machine mounted on a combine harvester, where 3 is a handling chamber, 10 is a handling barrel, 11 is a crimp net, 12 is a suction port, A is a swinging sorter, 13 is a pressure fan, 14 is a No. 1 spiral conveyor, and 15 is a No. 2 spiral conveyor, which are constructed in the same manner as the conventional structure.

Further, on both rear sides of the swing sorting body A, the lower parts of both swing support rods 16 whose upper parts are pivoted to the fuselage body are respectively pivotally connected, and a frame plate 1 protrudes from the front part of the swing sorting body A.
A lateral shaft 18 is inserted into the tip of 7, and the lower part of a side dog-shaped swinging support 21 whose upper part is pivotally connected to the upper support piece 19 via a support shaft 20 is pivotally connected to the shaft 18. The other end of a swinging arm 2 extending from the side of the horizontally installed rotary drive shaft 4 is pivotally connected to the shaft 18, and the swinging sorting body A is swung at a predetermined amplitude by the swinging arm 2. It is constructed in the same way as the conventional structure.

A bolt nut 2 is attached to one end of the swing arm 2.
Divided annular fitting body 2 that can be connected by 2 and 22
The circular eccentric drive wheel 1 is integrally formed with the rotary drive shaft 4 and is rotatably fitted inside the annular fitting body 23. At the eccentric position of the circular eccentric drive wheel 1, there is an elongated hole 5 which is larger than the rotary drive shaft 4 and has an oval shape. , with fewer connecting holes 9a on both sides near the elongated hole 5, and connecting holes 9a on both sides further apart.
Further, both connecting holes 9c are formed on both sides of the connecting holes 9c projecting from each other as shown in FIG.

a circular eccentric wheel 6 that can be parallel to the eccentric drive wheel 1;
A round hole 24 into which the rotary drive shaft 4 can be inserted is formed at the eccentric position, and a set bolt 25 is screwed in to fix the eccentric wheel 6 to the rotary drive shaft 4. On both sides of both connection holes 8a that can match with the connection holes 9a, there are also connection holes 8b that can match with both of the connection holes 9b, and on both sides further apart, there are both connection holes 8c that can match with both of the connection holes 9c. are provided protrudingly as shown in FIG. 4, but the intervals between the connecting holes 8a, 8b, and 8c are different from the intervals between the connecting holes 9a, 9b, and 9c, so that, for example, both the connecting holes 8a, By matching 9a, the amplitude of one side becomes 13 mm, and by matching both connecting holes 8b and 9b, the amplitude of one side becomes 11.5 mm, and both connecting holes 8
The configuration is such that the amplitude of one side changes to 10 mm depending on the match between c and 9c.

In the figure, 7 is a bolt and 7a is a nut.
Therefore, when the rotary drive shaft 4 rotates, the eccentric drive wheel 1 connected by the bolts 7, 7 rotates, causing the swinging arm 2 to swing and moving the swinging sorter A.
It will cause the oscillation. When adjusting the swing amplitude of the swing sorter A, both bolts 7 are connected to both wheels 6 and 1.
Adjustment can be made by simply replacing and attaching the bolts to the connecting holes 8c and 9c. When both bolts 7 are inserted into the connecting holes 8c and 9c, the rotary drive shaft 4 is moved to the inner end of the elongated hole 5, as shown in Fig. 5. Eccentric drive wheel 1 as shown in
The maximum diameter of is L1, and the amplitude can be set to, for example, 10 mm.

When both bolts 7 are inserted into both connecting holes 8b and 9b, the rotary drive shaft 4 is located at the center of the elongated hole 5, and as shown in FIG. , the amplitude can be set to, for example, 11.5 mm, and when both bolts 7 are inserted into both connecting holes 8a and 9a, the rotational drive shaft 4 will be closer to the outer end of the elongated hole 5. As shown in FIG. 7, the longest diameter of the eccentric drive wheel 1 becomes L3, which is longer than L2, and the amplitude can be set to, for example, 13 mm.

By adjusting the oscillating amplitude of the oscillating sorter A in this way, if the No. 3 loss increases, the amplitude can be reduced to reduce the loss, or if the sorting of wheat, etc. is poor, the amplitude can be increased. Therefore, sorting can be facilitated.

[Effect of the invention] As described above, the present invention has the eccentric drive wheel 1 and the eccentric wheel 6.
By simply changing the mounting position of the wheel, the swing amplitude can be easily adjusted without replacing the eccentric drive wheels, and the size of the wheel does not become large just by having both wheels 1 and 6 in parallel. It has the advantage that it can be of a simple structure, and that it can swing reliably and well in the same manner as the conventional one, and can be suitably implemented.

[Brief explanation of the drawing]

Figure 1 is a side view of the main parts of an embodiment of the present invention;
Fig. 2 is a plan sectional view of a part thereof, Fig. 3 is a side view of the eccentric drive wheel, Fig. 4 is a side view of the eccentric wheel, Figs. 5 to 7 are explanatory views, and Fig. 8 is a side sectional view of the threshing machine. 1... Eccentric drive wheel, 2... Swinging arm, 3...
Handling room, A... Rocking sorter, 4... Rotating drive shaft, 5
...Long hole, 6...Eccentric ring, 7...Bolt, 8a,
9a...Connecting hole.

Claims (1)

[Scope of utility model registration request] In a threshing machine configured by interlocking a swing arm 2 with an eccentric drive wheel 1 rotatably fitted to a swing sorter A below a handling chamber 3, a rotary drive shaft 4 is attached to the eccentric drive wheel 1. An elongated hole 5 that can be loosely fitted is formed, and an eccentric wheel 6 that is fitted and fixed to the rotary drive shaft 4 is connected to the eccentric drive wheel 1.
An amplitude adjusting device for a swing sorting body, characterized in that the swing sorting body is arranged and fixed in parallel so as to be able to change their relative positions.