JPH0613676Y2 - Straw shredder in combine harvester - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a straw shredding device equipped in a combine, and more specifically, even when the amount of straw supplied to a straw input port is reduced. The invention relates to a straw shredding device capable of preventing the posture of the straw from standing up when shredded by a disc-type shredding cutter and always smoothly shredding to a predetermined cutting length. is there.

[Conventional technology]

In general, a straw shredding device equipped in a combine has a guide for switching and supplying the conveyed straw to a lower straw input port and a rear straw discharge port at a transport end portion of a straw transport chain. It is known that a body is provided and that the straw supplied to the straw input port by this guide is shredded by a disc type shredder cutter. A large space is formed between the shredded cutter fixed below the charging port and the guide body so that clogging can be prevented even if a large amount of straw is supplied.

[Problems to be solved by the present invention]

However, in the conventional straw shredding device in which a large space is formed above the shredder cutter, when the amount of supplied straw is reduced,
When the straw supplied and guided by the guide body is shredded by a disc-type shredder cutter, it becomes a rising shape, and a long straw is generated without being cut into a predetermined length.

The present invention was devised to solve the above-mentioned problems, and provided a disc-type shredder cutter below the straw input port, but reduced the supply amount of straw. Also, an object of the present invention is to provide a combine shredding device in a combine, which can always smoothly dissect straw into a predetermined length.

[Means for solving problems]

The technical means taken by the present invention to solve the above-mentioned problem is to switch the conveyed straw to a lower straw input port and a rear straw discharge port at the transport end portion of the straw transport chain. In the straw shredding device in which a guide body for supplying is provided, and the straw supplied to the straw input port by the guide body is shredded by a disc-type shredding cutter, below the straw input port. The shredded cutter disposed in the above is configured to be movable up and down, and the vertical movement of the shredded cutter is linked to the amount of supplied straw so that the shredded cutter moves upward when the amount of straw is reduced. It is characterized in that the shredder cutter is arranged so as to be close to the guide body and move downward when the amount of straw is increased to separate from the guide body.

[Function of device]

Therefore, according to the present invention, when the straw is shredded by the straw shredding device equipped in the combine, the guide conveys the straw carried by the straw carrying chain to the straw input port,
A disc-type shredder provided below cuts straw into a predetermined length. When the supply amount of straw decreases due to the increase or decrease in the traveling speed of the aircraft, the shredder cutter moves upward in connection with this and cuts the straw at a position close to the guide body. Can be prevented from rising, and can be shredded into a predetermined size without generating a long straw.
When the amount of straw is increased, the shredded cutter that moves downward is separated from the guide body, and a space is formed between the guide body and the straw, so that clogging of the straw does not occur and the straw is smoothed. You can shred.

〔Example〕

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Is an straw-conveying chain, which is installed obliquely from a threshing machine (not shown) mounted on the combine 2 toward the center of the rear part of the fuselage, and a straw-shredder 3 is attached to the rear end of the fuselage. There is. Reference numeral 4 denotes a guide body provided at the conveying end portion of the straw conveying chain 1. The guide body 4 is pivotally attached to the upper surface of the case 5 of the straw shredding device 3 via a support shaft 6, and a lever. By the operation of 7, the upper movement position for supplying the conveyed straw to the lower straw input port 8 and the lower movement position for guiding the straw along the upper surface thereof to the rear straw discharge port 9 as they are. It is switchable and rotatable.

Reference numeral 10 denotes a disk-type shredded cutter disposed below the straw insertion port 8. The shredded cutter 10 has a plurality of cutting teeth 12, 12 on a drive shaft 11 which is axially mounted in the lateral direction of the machine body.
Cutting tooth assembly 13 in which ... are arranged side by side, and the drive shaft 11
Is constituted by a take-up tooth assembly 16 in which a plurality of take-up teeth 15, 15 ... The both assemblies 13 and 16 are integrally connected by a holder 17 supporting one end and a case 18 supporting the other end, and both ends of the drive shaft 11 are connected to the bearing 19 and the side plate 2.
It is rotatably supported by a 0 boss portion 21. The holder 17 and the case 18 are supported by hydraulic cylinders 22 and 22, and the operation of the hydraulic cylinders 22 and 22 causes the side of the scraping tooth assembly 16 of the shredding cutter 10 to drive shaft 11.
It can move up and down around the axis.

The vertical movement of the shredder cutter 10 is linked to the vertical movement of the shredded cutter 10 as the amount of straw increases and decreases due to the change in traveling speed. That is, 23 is a microcomputer for controlling the shredding cutter 10, and 24 is a switching switch thereof.
In the state where the guide body 4 is moved upward to supply the straw to the straw input port 8, the guide body 4 turns off the switching switch 24.
As a result, the microcomputer 23 becomes the cutter setting.
At this time, when the continuously variable transmission lever 25 for controlling the traveling speed is operated to the high speed side, the lever position meter 26, which indicates the amount of rotation of the continuously variable transmission lever 25, operates and the solenoid valve 28 of the transmission mechanism 27 is operated via the microcomputer 23.
Then, the solenoid valve 29 of the shredder cutter 10 is operated to increase the traveling speed, and at the same time, the hydraulic cylinder 2
2 and 22 are reduced to lower the shredder cutter 10. When the cylinder position meter 30, which indicates the amount of expansion and contraction of the hydraulic cylinder 22, synchronizes with the lever position meter 26, the lowering stops, but at this time, the scraping tooth assembly 16 side of the shredder cutter 10 corresponds to the increase in the amount of straw. It descends to the above position and is separated from the guide body 4. Further, when the continuously variable transmission lever 25 is operated to the low speed side, the lever position meter 26 is activated to slow down the traveling speed, and at the same time, the shredder cutter 10 is moved upward, and the guide body 4 is caused to project upward even at the downward movement position. . Then, the shredder cutter 10 moves up to a position corresponding to the reduction amount of straw, and is close to the guide body 4.
The scraping tooth 15 of the
The cutting teeth 12 are scraped and cut into a predetermined size.

On the other hand, in the state in which the guide body 4 is moved downward and the straw is guided to the rear straw discharge port 9 along the upper surface thereof, the plate 31 provided on the guide body 4 presses the switching switch 24 to turn it on, When the microcomputer 23 is set to the straw setting and the shredded cutter 10 is moved up, the shredded cutter 10 is moved down, and even if the speed change lever 25 is operated, the shredded cutter 10 is not moved up and down. The guide body 4 descended without contacting the shredder cutter 10 guides the straw backward. 32 is a pulley position meter of the speed change mechanism 27, 33 is a stopper of the guide body 4, 34 is a shredder cutter 10.
Is a long hole that moves up and down.

6 and 7 show another embodiment, in which the shredder cutter 10 is moved up and down in association with the vertical movement of the guide rail 35 due to the change in the amount of straw to be conveyed. That is, the sensor 3 is provided below the guide rail 35 of the straw conveying chain 1.
When the sensor 36 detects the vertical movement of the guide rail 35 and the position meter 37 operates, the shredder cutter 10 moves downward via the microcomputer 23 when the amount of straw is increased. When the amount of straw is reduced, it moves upward and approaches the guide body 4. Reference numeral 38 is a biasing ammunition for the guide rail 35.

8 and 9 show the upper cover 3 of the straw shredder 3.
9 is used to easily move the straw shredding device 3 removed from the combine 2, and casters 40, 40 ... Are mounted on the upper surface of the upper cover 39. In addition, mounting plates 41 fixed to both sides of the upper cover 39
A long hole 42 is bored in the hole, and the upper cover 39 is fixed by tightening a bolt 43 inserted in the long hole 42. Then, the bolts 43 are loosened, the upper cover 39 is rotated downward, and further, the casters 40 are moved downward until they come into contact with the ground, and then fixed. Then, the straw shredder 3 removed from the combine 2 is applied with a slight force. It can be easily moved.

In the above-mentioned configuration, when the guide body 4 is moved upward in performing the mowing and threshing work by the combine 2, the switching switch 24 is turned off and the shredder cutter 10 is set to the cutter via the microcomputer 23. The straw guided from the straw conveying chain 1 to the straw input port 8 by the moved guide body 4 is shredded to a predetermined size by the shredding cutter 10. If the continuously variable transmission lever 25 is operated to the high speed side,
Although the throwing amount of straw increases as the traveling speed increases, the shredding cutter 10 is operated by the operation of the lever position meter 26.
Since the scraping tooth assembly 16 side descends and a space is formed above the shredder cutter 10 corresponding to the increased amount of straw, the straw is not clogged in the straw shredder 3. on the other hand,
When the continuously variable transmission lever 25 is operated to the low speed side, the scraping tooth assembly 16 side of the shredder cutter 10 moves upward, and the scraping teeth 15 close to the guide body 4 remove the straw guided by the guide body 4. Since the straw is scraped, the cut straw does not rise in a rising state, the long straw and the like are surely prevented from being generated, and it is possible to always smoothly cut into a predetermined length. When the guide body 4 is moved downward, the plate 31 pushes the switching switch 24 to turn it on, the shredder cutter 10 is set to the straw setting, and the scraping tooth assembly 16 is lowered. Straw can be guided and discharged along the upper surface to the rear of the airframe.

In another embodiment shown in FIG. 6 and FIG. 7, the sensor 36 directly detects the amount of straw carried by the straw carrier 1 by the vertical movement of the guide rail 35, and the shredder 10 is cut. Since the side of the scraping tooth assembly 16 is moved up and down, even if the amount of straw is changed depending on the field conditions or the like, it can be shredded into a predetermined length smoothly.

Furthermore, in the case shown in FIGS. 8 and 9, combine 2
The heavy straw shredding device 3 removed from the above can be easily moved by one operator, which is extremely convenient.

[Effect of device]

In short, the present invention provides a guide body for switching the fed straw to the lower straw input port and the rear straw discharge port at the transport end portion of the straw transport chain. In a straw shredding device in which the straw supplied to the straw input port is shredded by a disc-type shredding cutter, the shredding cutter arranged below the straw input port is moved up and down. It is configured freely, and the vertical movement of the shredded cutter is linked to the amount of straw supplied, and when the amount of straw is reduced, the shredded cutter moves upward and approaches the guide body, When increasing, the shredding cutter moves downward to separate from the guide body,
Even though the amount of thrown straw increased even though the amount of thrown straw increased even though the amount of thrown straw was shredded with the shredded cutter provided below the straw input port. Straw is not clogged in the shredded cutter, while when the amount of straw is reduced, the straw that is cut by the shredded cutter close to the guide does not become a rising shape, so long straw etc. occurs. Can be reliably prevented,
The straw can be cut into a predetermined size to smoothly perform the shredding work.

[Brief description of drawings]

1 is a side view, FIG. 2 is a partially enlarged view of FIG. 1, FIG. 3 is a plan view, and FIG. FIG. 4 is an electric system diagram, FIG. 5 is an operation flowchart diagram, FIG. 6 is a side view of a main part showing another embodiment, FIG. 7 is a plan view of the same as above, and FIG. 8 is an upper cover with casters attached. FIG. 9 is a side view showing the same as FIG. In the figure, 1 ... Straw transport chain, 4 ... Guide body, 8 ... Straw input port, 9 ... Straw discharge port, 10 ... Shred cutter.

Claims (1)

[Scope of utility model registration request] 1. A guide body for switching the conveyed straw to a lower straw input port and a rear straw discharge port is provided at a transport end portion of the straw transport chain, and the guide body discharges straw. In a straw shredding device that shreds the straw supplied to the throwing port with a disc type shredding cutter, the shredding cutter arranged below the straw throwing port can be moved up and down. With the configuration, by connecting the vertical movement of the shredded cutter to the amount of straw supplied, the shredded cutter moves up to approach the guide body when the amount of straw is reduced, and when the amount of straw is increased. A straw shredding device in a combine, wherein the shredder cutter is configured to move downward and separate from the guide body.