JPS6345874Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is designed to reduce the height of the machine and improve the installation stability of a stationary type, and also for a type mounted on a combine harvester or harvester. In some cases, in order to lower the center of gravity of the car body and improve the running performance of the car body, the clamping threshing part and the sorting part are arranged side by side in such a way that the material to be processed is sent in almost the same direction in plan view. Concerning a threshing machine.

Conventionally, in configuring the above-mentioned threshing machine, the threshing section and the sorting section are connected over substantially the entire width thereof from the transfer start side to the transfer end side, and the threshed material is continuously transferred as the threshed culm is transferred. However, since a large amount of straw waste was sent along with the grains over the entire width of the sorting section from the starting end of the transfer to the end of the transfer, the sorting in the sorting section was difficult. There are problems such as increased load and decreased sorting efficiency.

In view of the above-mentioned conventional situation, the purpose of the present invention is to reduce the straw waste ratio of the threshed material supplied to the sorting section at the transfer start end of the sorting section and increase it at the transfer end side. The aim is to reduce the sorting load on the main sorting and transport sections of the department and improve the overall sorting efficiency.

The characteristic structure of the present invention is that, in the threshing machine mentioned above, a receiving net is provided in the pinching threshing section, a conveying device is provided for supplying the material passing through the receiving net to the sorting section from the transfer start side, and the pinching threshing section The opening that communicates the handling chamber with the sorting section is arranged near the transfer terminal side of the sorting section.

In other words, a conveying device is provided to feed the material passing through the receiving net provided in the threshing section to the transfer starting end side of the sorting section, and an opening that communicates the handling chamber of the threshing section with the sorting section is placed closer to the transfer end side of the sorting section. By arranging this arrangement, only the threshed material with a low straw waste content that has been initially sorted by the receiving net can be supplied to the transfer start end of the sorting section. By reducing the sorting load on the main sorting transfer section leading to the grain, the threshing efficiency of the whole sorting section has been improved, and it has become possible to provide a threshing machine with excellent sorting performance.

Next, embodiments of the present invention will be described in detail based on illustrative drawings.

As shown in FIGS. 1 and 2, an automatic threshing device 3 and a boarding operation section 4 are provided on a body frame 2 equipped with a pair of left and right crawler traveling devices 1, and
A front section equipped with a planted grain culm pulling device 5, a reaping device 6, and a conveying device 8 that transports the reaped grain culm in a sideways posture to the threshing culm conveying feed chain device 7 of the threshing device 3. The reaping section 9 is disposed at the front end of the machine frame 2 near one side of the driving section 4, and is connected by a hydraulic cylinder 10 so as to be able to swing up and down around the transverse axis of the vehicle body in the left-right direction, thereby controlling the running of the vehicle body. A combine harvester is configured to reap and thresh the planted grain culms.

As shown in FIGS. 3 to 6, the automatic threshing device 3 has a rotary threshing effect on the threshing grain culm which is held and conveyed rearward by the feed chain device 7 around the longitudinal axis of the vehicle body. A threshing section 13 consisting of a handling drum 11 and a handling chamber 12 in which it is housed;
A sorting section 16 performs wind sorting using the air supplied from the winnowing machine 14 and specific gravity sorting by the swinging sorting plate 15 as it is transported backwards for the threshed products and first grains, which will be described later, supplied from the threshing section 13. are arranged side by side in the lateral direction of the vehicle body, and a first item collection unit 17 and a second item collection unit 18 which separately collect the first item to be sorted and the second item to be sorted that have been sorted in the sorting unit 16. A first article horizontal feed screw device 17a and a vertical feed screw device 17b are disposed below the part 16 at the front and rear of the vehicle body and convey the first recovered article to the upper grain tank 19, and a first article horizontal feed screw device 17a and a vertical feed screw device 17b are provided for conveying the first recovered article to the upper grain tank 19. A second cross-feeding screw device 18a, a vertical-feeding screw device 18b, and a forward-feeding screw device 18c are provided for returning and transporting the second material to the sorting section 16, and furthermore, a dust exhaust fan 20 is provided to discharge the straw waste after the sorting process to the outside of the machine, and A waste straw processing unit 22 consisting of a waste straw cutter 21 and the like that shreds the threshed waste straw from the feed chain device 7 is installed at the rear end of the machine, and it performs a series of threshing, sorting, collection and storage, and waste straw processing. It is designed to be carried out during the process.

In addition, when disposing the upper grain tank 19, as shown in FIGS. 1 and 2, the grain tank 19
is formed into a flat rectangular parallelepiped shape, and the threshing section 1 is formed as described above.
3 and sorting section 16 are arranged side by side in the lateral direction of the vehicle body, and the grain tank 19 is placed on the upper part of the automatic threshing device 3, which has a low structure, and extends over the entire width of the automatic threshing device 3. Compared to those located closer to each other, the structure is designed to suppress the lateral displacement of the vehicle's center of gravity due to an increase in the number of stored grains, and to prevent the deterioration of driving performance due to the displacement of the center of gravity. be.

To explain in more detail the structure for supplying the threshed material from the threshing section 13 to the sorting section 16, a clip net 23 is stretched below the handling drum 11 over its entire width in the longitudinal direction, and the crimp net 23 is The passed threshing material is transferred to the second cross-feeding screw device 18.
A screw device 24 is provided for rearward conveyance, and the front half of the crimp net 23 is extended along the outer circumferential shape of the handling cylinder 11 to face the sorting section 16, and the crimp net 23 is handled with its extended portion 23a. An opening 25 that partitions the chamber 12 and the transfer start end side of the sorting section 16 and communicates the handling chamber 12 and the sorting section 16 is arranged near the transfer end side of the sorting section 16, and in the opening 25, An impeller 26 that rotates around an axis facing forward and backward for transferring the threshing product, and has disk-shaped straw cutting blades 26a arranged side by side.
Furthermore, in order to collect the threshed material that has reached the end of the transfer of the threshing section 13, the second cross-feeding screw device 18a is provided to extend behind the threshing section 13.

In other words, only the initially sorted threshed material, which has passed through the crimp net 23 below the handling chamber 12 and the crimp net extension portion 23a facing the sorting section 16, and which has a relatively low straw waste content, is transferred to each screw device 24, 18.
a, 18b, 18c together with the second sorting material or directly supplied to the transfer starting end side of the sorting section 16, and the threshed material containing a large amount of straw waste is removed from the opening 25 by the straw cutting blade 26a. By supplying the waste to the transfer terminal side of the sorting section 16 by the impeller 26 while shredding the waste, the sorting load on the main sorting and transfer section of the sorting section 16 is reduced and the sorting efficiency is improved. .

In order to isolate the transfer starting end side portion of the sorting section 16 from the handling chamber 12, instead of extending the crimp net 23, a partition structure such as providing a wall member that completely blocks the transfer of the threshed material may be used. The impeller 2 can be modified in various configurations, and the impeller 2 can be used to supply the threshed material containing a large amount of straw waste to the transfer terminal side of the sorting section 16.
6 is omitted to form only the opening 25, and the threshed products are transferred to the opening 25 by the rotational inertia of the handling cylinder 11.
The structure for supplying the threshed material from the opening 25 disposed near the transfer end of the sorting section 16 can be modified in various ways, such as being configured to be discharged and supplied from the sorting section 16 to the transfer end side.

Furthermore, in order to convey and supply the passing material from the crimp net 23 provided in the threshing section 13 to the transfer starting end side of the sorting section 16, the conveyance system path can be changed in various configurations, and the conveyance structure can also be changed in various ways. It is possible to apply various types of devices, and these devices are collectively referred to as the conveying device 24.

The present invention is intended for various types of threshing machines, including stationary types and types mounted on combines and harvesters.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the threshing machine according to the present invention,
Figure 1 is an overall side view of the combine, Figure 2 is the 1st
3 is a front sectional view of the threshing device, FIG. 4 is a plan sectional view of the threshing device, FIG. 5 is a side sectional view of the threshing device, and FIG. 6 is a grain conveyance system. It is a schematic perspective view showing a road. 12... handling room, 13... threshing section, 16... sorting section, 23... receiving net, 24... conveyance device, 25...
Opening.

Claims (1)

[Scope of utility model registration request] A threshing machine in which a clamping threshing part 13 and a sorting part 16 are arranged side by side in a state in which the material to be processed is sent in substantially the same direction in plan view, and a receiving net 23 is provided in the clamping threshing part 13. , a conveying device 24 is provided to supply the material passing through the receiving net 23 to the sorting section 16 from the transfer starting end side, and an opening 25 is provided which communicates the handling chamber 12 of the clamping threshing section 13 with the sorting section 16.
This threshing machine is characterized in that the sorting section 16 is disposed near the transfer end side.