JPS6312684Y2 - - Google Patents

Description

[Detailed description of the invention] This invention harvests the stem culms of rice, wheat, soybeans, peas, corn, etc., introduces the entire harvested stem culm into the threshing section, and processes the threshing process. Regarding a conventional combine harvester that collects grains from grains and releases waste culms outside the machine, the purpose is to dramatically improve the threshing and sorting functions of this type of conventional combine harvester. It is in.

Embodiments of the present invention will be described below with reference to the drawings.

A reaping transport section 1, which can swing freely around a horizontal axis by a cylinder, is attached to the front side of the traveling machine 2, and the entire amount of reaped stem culms from the reaping transport section 1 is introduced and threshed. The traveling machine body 2 is equipped with a threshing sorting section 3 that separates residual grains from the threshing sorting section 3 and a sorting device 4 that collects grains from the processed material from the threshing sorting section 3. A control unit 5, a grain tank 6, and an engine 7 are arranged at the upper front side of the unit 3, and are used to harvest and thresh planted culms, collect grains from the processed material, and remove the expelled culms. It consists of a normal type combine harvester that is ejected from the aircraft.

The threshing sorting section 3 includes a main threshing device 8 that introduces the harvested stem culms from the reaping conveyance section 1 and processes them for threshing.
and a post-threshing and sorting device 9 that further threshes and sorts the culms with residual grains from the main threshing device 8. As shown in FIGS. 1 to 3, the main threshing device 8 is It consists of a first handling barrel 11 that is rotatably driven around the horizontal axis of the aircraft and a concave 10 disposed below the first handling barrel 11. A large number of handling teeth 13 are arranged in a radial manner on the circumferential surface of the handling cylinder 11, and a large number of handling teeth 14 are arranged in a protruding manner on the surface of the concave 10 facing the handling cylinder 11. ing. The handling teeth 13 of the handling barrel 11 are of a type that can be freely switched between wheat and rice.

The post-threshing sorting device 9 includes a pair of left and right second handling barrels 12, 12 that are rotatably driven around the longitudinal axis of the machine behind the main threshing device 8, and a concave 15, 15 disposed below the second handling barrels 12, 12. It consists of

Each of the left and right second handling cylinders 12, 12 has a large number of handling teeth 16 arranged in a radial manner protruding from its circumferential surface so that its front portion (approximately 1/3 in the figure) primarily performs the threshing function. In addition, a plurality of paddle-shaped sorting tools 17 are protruded from the circumferential surface of the rear portion (approximately 2/3 in the figure) of which mainly performs the sorting function, and the main threshing device 8 After threshing and sorting, the culms from the harvest are processed. Although not shown,
Handling teeth and sorting tools corresponding to the handling teeth 16 and sorting tools 17 are also provided on the inner surfaces of the left and right concaves 15, 15.

The pair of left and right second handling cylinders 12, 12 are of the same shape and size, and are connected to each other via a gear interlocking mechanism (not shown) so that they are driven inwardly and in opposite directions at the same rotation speed. As shown in FIG. 3, the handling teeth 16 and the sorting tool 1
7... are arranged close to each other so that their rotation loci overlap with each other in the axial direction of the handling cylinder. According to this configuration, good culm straining action, processing action,
Also, the grinding action is exerted to provide excellent threshing and sorting functions.

In addition, in order to wrap the handling teeth 16, in addition to inserting teeth of the same phase into each other in the axial direction of the handling cylinder,
The handling teeth 16 may have different phases in the axial direction of the handling cylinder, and in this latter case, the left and right second handling cylinders 1
2 and 12 sutras are different, or both 1
It is also possible to make the peripheral speeds of the second handling cylinders 12 and 12 different by making the rotation speeds of the second handling cylinders 12 and 12 different.

Next, the threshing and sorting action of the threshing and sorting section 3 having the above structure will be explained. The reaped stem culm transferred from the reaping transport section 1 is transferred to the first handling cylinder 1 of the main threshing device 8.
1 and the concave 10 and subjected to a threshing action, most of which (approximately 80 to 90%) is threshed and supplied to the sorting device 4, where it is sorted into grains and small straws. On the other hand, the culms from the main threshing device 8 are collected by the post-threshing sorting device 9 located behind it.
It is introduced into the front part of the body from above. Here, since the left and right second handling cylinders 12, 12 are rotating inwardly, the culm is well guided downward, and the second handling cylinders 12, 12 and the concave 15, 15
The grains and small straws are supplied to the sorting device 4, while the remaining long straws are sequentially transferred to the rear and sent to the second handling cylinders 12, 1.
After being subjected to sorting action in the second half of step 2, it is discharged outside the aircraft.

In summary, the present invention comprises a threshing sorting section in a conventional combine harvester, which includes a first handling drum mainly for threshing that rotates around the left and right axes, and a first handling drum that rotates around the left and right axes, and a part slightly behind the first handling drum that is opposite to each other around the front and rear axes. Two left and right second handling drums are provided which rotate inward in the direction of the grain and have a post-threshing and sorting function, and a concave is arranged below each of these handling drums, and the left and right second handling drums are provided with
The handling cylinders are arranged close to each other so that the rotation loci of the handling teeth on their peripheries overlap each other in the axial direction of the handling cylinders.

In other words, in conventional combine harvesters, the remaining grains in the removed culm are collected while the removed culm after threshing is conveyed rearward by a straw walker, but the recovery of the remaining grains is difficult. If this is not enough, simply replacing this with a pair of left and right second handling cylinders and a crimp net that have threshing and sorting functions,
It has become possible to perform two-stage threshing processing, improving threshing performance and increasing the recovery efficiency of residual grains.

Moreover, since the waste culm from the first handling cylinder is supplied to the pair of left and right second handling cylinders that are driven to rotate inwardly, the waste culm can be transferred very smoothly, and the waste culm can be transferred very smoothly. The culm can be taken in extremely well in the second handling cylinder, and furthermore, the rotation loci of the handling teeth of the left and right second handling cylinders are configured to overlap with each other in the axial direction of the handling cylinder. The straining, sorting, and tearing of the culm can now be carried out extremely well, and the threshing and sorting functions as a whole have been dramatically improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a vertical side view of a conventional combine harvester, FIG. 2 is a cross-sectional plan view of the same, FIG. 3 is a perspective view of the main parts, and FIG. FIG. 1... Reaping conveyance section, 3... Threshing sorting section, 4...
Sorting device, 10, 15... Concave, 11...
1st handling cylinder, 12... 2nd handling cylinder, 16... handling teeth, 1
7... Sorting tool.

Claims (1)

[Scope of Claim for Utility Model Registration] A common type combine harvester equipped with a reaping conveyance section, a threshing sorting section, and a sorting device for collecting grain, wherein the threshing sorting section comprises: A first threshing drum that rotates, and two left and right second handling drums that rotate inwardly in opposite directions around the front and rear axes slightly behind the first handling drum and have post-threshing and sorting functions. In addition to providing
A concave is arranged below each of the handling cylinders, and the left and right second handling cylinders are arranged close to each other so that the rotation loci of the handling teeth on their peripheral parts overlap each other in the axial direction of the handling cylinders. A standard type combine harvester with special features. The ordinary type combine harvester according to claim 1, wherein the rotation loci of the sorting tools of the left and right second handling cylinders are overlapped in the axial direction of the handling cylinders.