JPS5817387Y2 - Straw removal device in combine harvester - Google Patents

Description

[Detailed description of the invention] The present invention is a threshing unit mounted on the combine harvester body; The present invention relates to an improvement in a straw removal device that is arranged above the straw removal cutter and mounted on the combine harvester body so as to carry the waste straw beyond the upper surface of the straw removal cutter to the rear of the combine harvester body.

The purpose of this invention is to ensure that the straw discharged from the threshing section of the combine is not carried out to the rear of the combine machine, but instead is fed to the straw cutter mounted on the rear side of the combine machine. In order to achieve this, the switching operation for switching the above-mentioned straw removal device to a non-operating state in which waste straw is not carried out can be performed without causing confusion in the flow of waste straw and impairing the straw removal function. The purpose is to make it possible to perform the process accurately using a simple mechanism without any problems.

In order to achieve this purpose, the straw removal device for a combine harvester according to the present invention is arranged above the straw cutter mounted on the rear side of the fuselage of the combine to receive the straw cutter discharged from the threshing section. A presser rod that guides the straw toward the entrance, a conveyor belt that carries out the straw to the rear of the straw cutter, and a conveyor rail that faces the upper surface side of the conveyor belt, which is the conveyance path side of the conveyor belt, are arranged. The presser rod has its base end movably supported up and down by a support shaft provided on the upper front end side of the straw removal cutter, and the conveyor belt has its rear end attached to the support machine frame. The conveyor rail is supported so as to be movable up and down, and the conveyor rail is fixedly supported to the combine machine body by means of a support, arranged on the side of the vertical automatic trajectory of the machine frame, and the machine frame of the presser rod and the conveyor belt is fixedly supported by a support. The feature is that they are linked so that when one rotates upward, the other rotates downward.

Next, an example of implementation will be explained in detail according to the drawings.
In the figure, A omits the first half and shows only the second half, and 1 is a threshing section consisting of a self-described threshing device mounted on the body of the combine, and 1 is the shell culm that has been threshed by the threshing section A. The machine a of the threshing section A is equipped to transport the waste straw to the rear of the machine a of the threshing section A, which is the rear of the combine machine (right side in Fig. 1), and to discharge it from the discharge port 1a at the end. This is a hanging shell culm conveying device, which consists of a conveying cheno 10 and a conveying rail 11 facing it.

In this embodiment, the husk feeding device 1 is an extension of the foot chain device of the threshing section A, but it inherits the husk (waste straw) from the foot chain device and transfers the husk to the machine a of the threshing section A.
In some cases, there is a device for removing straw from the rear.

B is a straw cutter installed on the rear side of the machine body a of the threshing section A, which is the rear side of the combine machine body, so as to receive and cut the straw S discharged from the threshing section A by the shell culm conveying device 1. In this example, the machine frame 20 is formed into a machine housing shape.
A feed roll 21 and a feed roll 22 are placed in the open part on the top side of the
A fixed blade 24 and a rotary blade 25 are installed in a cutting chamber 23 formed in the inner cavity of the machine frame 20 below the feed rolls 21 and 22. This is a conventionally known cylinder-type straw cutter that houses a cylinder-type cutting mechanism and discharges the cut straw pieces from the cutting chamber 23 through the discharge port 26 of the cutting chamber 23. One infeed roll 2 of the infeed rolls 21 and 22
．． 1 includes a pair of feed rolls 21 which face each other while bending the culm discharged from the above-mentioned culm conveying device 1 into two.
．． A crank finger 27 that engages in the opposing gap of 22 is incorporated.

31 is a machine frame of the straw cutter B so that the straw discharged from the threshing section A is carried out to the rear of the machine frame 20 over the upper surface of the machine frame 20 of the straw cutter B and released. The conveyor belt is disposed above the machine frame 30, and is made of a rubber belt with lugs or a tension belt with protrusions, and is endlessly looped around a transmission wheel that is pivotally supported at both the front and rear ends of the machine frame 30, and is connected to the above-mentioned conveyance belt through an appropriate transmission mechanism. By driving one of the conductive levers, it is rotated so that the upper surface side is on the conveying stroke side, as shown by the arrow in FIG.

The conveyor belt 31 is supported by supporting the rear end side of the machine frame 30, which supports the conveyor belt 31, on a support frame 40 provided on the body of the combine harvester using the machine frame 20 of the straw removal cutter B. The conveyor belt 31 is mounted on a shaft so as to be vertically movable via the shaft 41 and supported so that the front end side can freely rotate up and down around the support shaft 41. The front end 31a, which is the starting end in the conveying direction, faces the discharge port 1a, which is the terminal end of the culm conveying device 1 of the threshing section A, as shown in FIG. The discharge port 1a is spaced upwardly from the discharge port 1a of the shell culm conveying device 1.
It is designed to switch to a position where no straw is inherited.

Reference numeral 32 denotes a conveyor which is arranged above the straw removing cutter B described above so as to face the upper surface side of the conveyor belt 31, which is the conveyance stroke side, and together with the conveyor belt 31 constitutes the straw removing device C. The machine frame 30 and the conveyor belt 3 are connected by rails.
1 is arranged to face the conveyance surface side of the conveyor belt 31 when viewed from the side, as shown in FIG. position, and the starting end side of the transport rail 32 in the transport direction is
The body a of the threshing section A is fixedly supported by the support 33, thereby providing a fixed support for the body of the combine harvester.

Reference numeral 50 denotes an operating arm whose one end is connected to the machine frame 30 of the conveyor belt 31 so as to rotate the machine frame 30 of the conveyor belt 31, and the other end is used to operate the combine harvester using the machine frame 20 of the straw removal cutter B. It is connected to a bell crank-shaped operating lever 52 provided on the machine body so as to rotate around a support shaft 51, and by rotating the operating lever 52 manually or by remote control, the front end 31a of the conveyor belt 31 can be moved. A switching rotation is made to switch between the state position shown in FIG. 1 and the state position shown in FIG. 2.

6 is a crank finger 27 rotating in the direction of the arrow in FIG. , a presser rod arranged above the above-mentioned straw cutter B to prevent the straw from floating up when the straw is scraped into the opposing gap between the feed rolls 21 and 22. The proximal end is supported on a support shaft 60 provided on the upper front end side of the straw removal cutter B, and is supported to rotate up and down about the support shaft 60, and the operation lever 52 are connected to each other via a release wire 53, so that when the aforementioned conveyor belt 31 rotates downward as shown in FIG. 3, it rotates upward as shown in FIG. It is.

Reference numeral 54 denotes a tension clutch arm 2 that controls the "on" and "off" of power transmission to the input shaft 28 of the straw cutter B.
9 and the aforementioned operating lever 52, the machine frame 30 of the conveyor belt 31 is lowered as shown in FIG. When the clutch arm 29 is transferred to the tension position, the spring 55 that draws the clutch arm 29 to the tensioned position is loosened to move the clutch arm 29 to the "off" position.

Further, D is a dropper installed on the rear surface of the machine frame 20 of the straw removal cutter B, and 56 is a knock pin for fixing the position of the operating lever 52.

Next, to explain the function and effect, the straw removal device for the combine harvester according to the present invention, which is configured as described above, has the following features:
The straw S discharged from the threshing section A is fed into the receiving port of the straw cutter B above the straw cutter B mounted on the rear side of the threshing section A of the combine, which is the rear side of the combine machine. A presser rod 6 that guides toward the opposing gap between the rolls 21 and 22, a conveyor belt 31 that carries out the straw S to the rear of the straw cutter B, and a conveyor belt 31 that faces the upper surface side that is the conveyance stroke side of the conveyor belt 31. The carrier rail 32 is fixed to the body of the combine harvester, and the rear end side of the machine frame 30 of the carrier rail 32 is attached to the supporting machine frame 40. The presser rod 6 is supported so that the front end 31a side thereof can be rotated up and down by being supported on a support shaft 41, and the proximal end of the presser rod 6 is mounted on a support shaft 60 provided at the upper front end side of the straw removal cutter B. The presser rod 6 and the conveyor belt 31 are connected so that when one goes up, the other goes down, so that the waste straw discharged from the threshing section A is The straw is discharged into the space formed between the upper surface of the straw cutter B and the conveyor rail 32 fixedly provided above it, and the above-mentioned presser rod 6 and conveyor belt 31 are alternately switched and lowered into the space from above the space whose upper part is surrounded by the transport rails 32.

Therefore, when the waste straw discharged from the threshing section A is supplied to the waste straw cutter B, the holding rod 6 presses down the waste straw released into the space enclosed above by the conveyor rail 32. Therefore, the direction is guided to the receiving port of the straw cutter B, and when carrying out the straw discharged from the threshing section A to the rear of the machine frame of the straw cutter B, the transfer rail 3
The conveyor belt 31, which switches with the presser rod 6 and descends into the space, cooperates with the conveyor rail 32 to carry out the waste straw discharged into the space whose upper part is enclosed at 2, During this switching operation, the waste straw discharged from the threshing section A is always enclosed above by the fixedly provided conveyor rail 32, so that there is no confusion in the flow of the waste straw. Switching operations can now be performed.

The conveyor rail 32 is fixedly provided, and the conveyor belt 3
Since the machine frame 30 and presser rod 6 are rotatably supported, the mechanism is simple.

Further, the conveyor belt 31 is rotated downward on the side of the fixed conveyor rail 32 with its upper surface side as the conveyance stroke side, and is fixed by being in a state where it faces the lower surface side of the rail 32 in a side view. Since the conveyance function is performed in cooperation with the conveyance rail 32, the conveyance function is not impaired.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of an embodiment of the device of the present invention in a non-operating state, FIG. 2 is a longitudinal sectional side view of the same device in an operating state, and FIG. 3 is a side view of the operating mechanism portion of the same device. Explanation of drawing symbols, A... Threshing section, a...
・Same machine frame as above, 1... Culm conveying device, 1a...
...Discharge port of the device as above, B... Straw cutter, 20... Machine frame as above, C... Straw removal device, 30... ...Machine frame, 31...Transport belt, 32...Transport rail, 40...
...Support machine frame, 41...Spin shaft, 6...
Presser rod, 60...Spindle.

Claims (1)

[Scope of utility model registration request] The straw discharged from the threshing section A is placed above the straw cutter B mounted on the rear side of the combine harvester body, and the cutter B
A presser rod 6 that guides the waste straw toward the receiving opening, a conveyor belt 31 that carries out the waste straw to the rear of the straw remover B, and a conveyor rail 32 that faces the upper surface side of the conveyor belt 31, which is the transfer stroke side. The base end of the presser rod 6 is supported by a support shaft 60 provided on the upper front end side of the straw removal cutter B so as to be movable up and down, and the conveyor belt 31 is The rear end of the machine frame 30 is supported by the support machine frame 40 so as to be vertically movable, and the conveyance rail 32 is connected to the machine frame 3.
The above-mentioned presser rod 6
A straw removal device for a combine harvester, characterized in that a conveyor belt 31 and a rice frame 30 are connected so that when one rotates upward, the other rotates downward.