JPH0518528B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a grain culm transfer device for a threshing machine, and can be used in a harvester, combine harvester, etc.

Problems to be Solved by the Invention A threshing device mainly made of sheet metal has a guide rail attached to a portion of the grain culm transfer device that clamps and transfers the grain culm to be threshed, to which the guide rail that slides and guides the transfer chain is attached. The structure of the frame plate portion tends to cause distortion, and this tendency becomes more pronounced as the distance between the guide rail, transfer chain, etc. and the guide frame plate increases.

Means for Solving the Problem The present invention provides a guide frame plate 4 to which a guide rail 3 for slidingly guiding a transfer chain 2 which clamps and transfers grain stalks 1 is attached to a guide frame plate 4. A bearing frame plate 7 on which a sprocket 5 and a shaft 6 around which the terminal end of the transfer chain 2 is wound is mounted is integrally provided with a stepped portion 8 that is stepped toward the tip side of the transferred grain culm, and this stepped portion 8 and the sprocket are connected to each other. A grain culm of a threshing machine, which is directly connected to the five shafts and six bearing members 9 by a connecting member 10, and is provided with a scraper 11 for preventing straw waste from being entangled from the stepped portion 8 toward the sprocket shaft 5. This is the configuration of the transfer device.

Effects and Effects of the Invention Due to the driving rotation of the transfer chain 2, the grain stems fed and held between the transfer chain 2 sliding on the guide rail 3 and the clamping rod 1 are moved from the starting end side to the terminal end side. The tips of the grains are threshed in the threshing chamber while being transported toward the end of the grain, and even if there is straw, etc. that tries to wrap around the shaft 6 of the sprocket 5 at the end of the transport, the scraper that approaches the shaft 6 11, the interlocking rotation can be maintained smoothly, and the position of the sprocket 5 is brought as close as possible to the extended surface of the guide frame plate 4 by the stepped portion 8, so that the transfer chain 2 and this guide rail are removed. 3 is brought close to the guide frame plate 4, and a bearing member 9 for receiving the shaft 6 at the end of the transfer chain 2 is connected to the stepped portion 8 by a connecting member 10.
These guide frame plates 4, step portions 8, and
The series structure of the bearing frame plate 7 portion increases rigidity, reduces distortion, and has a simplified structure, allowing stable grain culm transfer.

Embodiment In the illustrated example, the threshing chamber 12 is the threshing drum 13.
A grain culm supply port 14 is provided on the front side, and a discharge port 15 is provided on the rear side. On the front side of the threshing chamber 12, along the grain transfer port extending between the supply port 14 and the discharge port 15, there is a clamp at the top of the transfer port of the sheet metal machine frame that constitutes the threshing machine frame. A stand 16 is provided, and a spring 1 is applied to the pincer 1 against the pincer stand 16.
7, and a guide rail 3 is attached to the machine frame on the lower side. This lower machine frame serves as a guide frame plate 4 constituting the front wall plate, and the guide rails 3 are fixed along the front and back direction with appropriate intervals, and the guide frame plate 4 is The end is bent toward the threshing chamber 12 side to form a stepped portion 8, and further along from the inner end of this stepped portion 8 to the rear, a wall plate portion constituting the winnowing chamber 18 is mounted on the inner side. The frame plate 7 is bent, and an interlocking case bearing the shaft 6 of the sprocket 5 is attached to the outside of the bearing frame plate 7 as a bearing member 9. This interlocking case has a joint between the shaft 6 and the shaft 20 of the suction fan 19. The space between the two is designed to rotate in conjunction with each other. The connecting member 10 is connected between the step portion 8 and the bearing member 9, and
A scraper 11 is provided protruding from this stepped portion 8 toward the shaft 6 that is supported by the bearing member 9, with its tip approaching the rotating circumferential surface of the shaft 6, and its outer edge being connected to the sprocket 5 and the sprocket 5. The transfer chain 2 is placed close to the side surface of the transfer chain 2, which is wrapped around the transfer chain 2. 21 is a sorting device that receives and sorts the grains. Reference numeral 22 denotes a culm shedding device, which is installed in the upper part of the winnowing chamber 18, facing rearward from the inside upper part of the transfer chain 5, and is used to remove the threshed grains that have been transferred while being held between the transfer chain 2 and the pincer rod 1. The culms are received and transported.

When the threshing drum 13 is rotated in conjunction, the transfer chain 2, the culm removal device 22, the dust remover 19, etc. are interlocked, and the grain culm supplied to the starting end between the pincer rod 1 and the transfer chain 2 is While the tip of the grain is being transferred through the threshing chamber 12, it is threshed, and the threshed culm is transferred from the end of the transfer chain 2 to the culm removal device 22 and transferred. The threshed grains in the chamber 12 are sorted by a sorting device 21, and waste materials such as straw waste are discharged by a dust remover 19.

At this time, tension is applied to the sprocket 5 toward the front guide rail 3 side due to the rotation of the transfer chain 2, and the bearing member 9 of the sprocket shaft 6 is connected to the guide frame plate 4 by the connecting member 10. Since it is connected to the stepped portion 8 between the frame plate 7, the structure of each frame plate 4, 7, stepped portion 8, etc. is solid and does not easily become distorted. Moreover, both frame plates 4 and 7 due to this stepped portion 8
The difference in level between the sprocket 5 shaft 6 and the bearing member 9
Although the transfer chain 2 is adjusted by the sprocket 5 and the guide rail 3, etc.
can be brought closer to the guide frame plate 4, making it even more difficult to distort. Furthermore, even if straw debris tries to wrap around the sprocket shaft 6, it is cut off by the scraper 11, so there is no accumulation of straw debris and no stress is placed on the transfer chain 2, the bearing frame plate 7, etc.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a plan sectional view of a portion thereof, Fig. 2 is an enlarged sectional view of a portion thereof, Fig. 3 is a slope view of a portion thereof, and Fig. 4 is a partial sectional view thereof. is a front sectional view. In the figure, 1 is a clamping rod, 2 is a transfer chain, 3 is a guide rail, 4 is a guide frame plate, 5 is a sprocket,
6 is the sprocket shaft, 7 is the bearing frame plate, 8 is the stepped part,
9 is a bearing member, 10 is a connecting member, and 11 is a scraper.

Claims (1)

[Claims] 1 A sprocket that wraps the terminal end of the transfer chain 2 around a guide frame plate 4 to which is fixed a guide rail 3 that slides and guides the transfer chain 2 that transfers grain culms by sandwiching them between the clamping rods 1. A bearing frame plate 7 on which the five shafts 6 are mounted is integrally provided with a stepped portion 8 toward the tip side of the transferred grain culm, and a space between this stepped portion 8 and the sprocket five shaft six receiving member 9 is provided. They are directly connected by a connecting member 10, and the sprocket shaft 5 is connected from this stepped portion 8.
A grain culm transfer device for a threshing machine, which is provided with a scraper 11 for preventing straw waste from being entangled toward the grain culm.