JPS5920029Y2 - Straw cutting and bundling device in combine harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a straw cutting and tying device in a combine harvester.

That is, the waste straw sent out from the combine machine is processed in three different ways: shredding with a base cutter, bundling with a bundling machine, and non-shredded and non-bundled discharge processing. However, the shredded chemicals and unshredded unbound straw are discharged out of the machine through the same route, making the whole machine more compact, and the discharged straw is discharged in an orderly manner without disturbance even when working in strong winds. The purpose of the present invention is to ensure that straw is accurately transported to a tying machine which requires precision in maintaining the posture at the tying position.

Next, the embodiment shown in the drawings will be described.

At the rear of the threshing section 4, which is the rear part of the machine supported by the crawler 3, a straw removal cheno 1 is installed rearward within the upper cover 5, and is threshed to a position forward of the terminal end 1a of the straw removal cheno 1. A rear cover 6 of the section 4 is extended, and the straw sent out by the straw removal cheno 1 above the rear cover 6 is passed through the terminal section 1.
It is configured so that it is dropped downwards everywhere in a.

Further, a base cutter A is installed so as to be able to move back and forth from the recess 7 in the rear cover 6, and the base cutter A has a large number of disk blades 9, 9' on two parallel shafts 8, 8'. When the base cutter A, which is installed and configured in the same manner as the conventional type and can be moved back and forth along the rails 10 on both sides, is inserted into the recess 7, the lower end 1a of the straw removal cheno 1 is located above the ground. When the base cutter A is moved backward so as to look above the falling path 11 through which the waste straw is guided and discharged, the end portion 1
The waste straw from A falls into the straw cutter A and is cut, and the cut straw is discharged to the ground from the falling path 11, and as the base cutter A moves back and forth, the tension belt type Configure so that the transmission clutch can be operated.

Reference numeral B designates a binding machine, which is constructed in the same manner as the conventional type so that the packer 13, needle 14, knot cover 15, door 16, discharge arm 17, etc. can be supported and driven by a binding case 12; The straw cutter A is partitioned with a partition plate 18 at the rear, and a stick 19 for supporting and guiding the straw is installed diagonally from the top of the partition plate 18 behind the rear lower part of the straw cutter A to the sides of the packer 13 and door 16. Configure.

Further, a guide plate 2 is installed between the straw cutter A and the binding machine B, and the lower end of the support rod 20 fixed along both sides of the guide plate 2 is connected to the upper part of the partition plate 18 via a pin 21. A support pin 23 at the rear upper part of the straw cutter A is inserted into a long hole 22 in the longitudinal direction formed in the upper part of the support rod 20, and the pin 23 is removably installed. do.

The binding case 12 of the binding machine B is configured to transmit power from an input pulley 24, a transmission belt 26 is wound around the drive pulley 25 and the input pulley 24, and a tension pulley 28 at the tip of an arm 27 with the fulcrum O as its axis is connected to the binding case 12 of the binding machine B. The structure is such that it is pulled by a tension spring 29 and clutched by a tension pulley 28, but when the straw cutter A moves rearward, an extension arm 27a from the arm 27 is attached to the lower rear corner of the straw cutter A. 30 is in contact with the arm 27 to rotate the arm 27 and operate the clutch to disengage.

When the straw cutter A is moved rearward as shown in FIG. When the waste straw reaches the terminal end 1a, it is prevented from being discharged backward by the upper part of the upright guide plate 2, and is cut into short pieces by the disk blades 9, 9' in the straw cutter A and sent downward. It falls down the fall path 11 and is discharged to the field.

In addition, when bundling waste straw, when the straw cutter A is moved forward and inserted into the recess 7 as shown in FIG. 3, the support pin 23 slides into the elongated hole 22 as it moves forward. While moving, the guide plate 2 is tilted, and when the waste straw conveyed by the straw remover cheno 1 falls onto the guide plate 2, it flows downward and flows over the tie 19, where it is tied by the tying machine B and sent to the rear. released to.

Furthermore, if the connecting pin 23 is removed and the straw cutter A is moved forward as shown in FIG. It can be discharged into the field in a dripping manner.

In addition, when the straw cutter A is moved forward, as shown in FIG. 6, the tension pulley 28 is pressed against the transmission belt 26 by the tensile force of the tension spring 29, and the clutch is engaged, so that the binding machine B When the straw cutter A is moved backward to cut the straw, as shown in Fig. 5,
The rear lower end corner 30 of the straw cutter A is the extension arm 27 a
Since the tension pulley 28 is moved away from the transmission belt 26 by contacting the belt 26, the transmission to the binding machine B is automatically stopped.

In this way, the present invention provides the straw dropping path 11 that can discharge the straw in an uncut state below the straw discharge part at the straw cinch terminal end 1a, and the straw dropping path 11
The straw cutter A installed in the upper half is installed so that it can be switched between a state in which straw is cut by being located in the falling path and a state in which it leaves for work in a non-cutting position in front of the said position, and the above-mentioned A tying machine B is fixed to the rear of the rear partition plate 18 that forms the falling path 11, and a guide plate 2 that bends and moves with the front upper end of the deck 19 having a high front slope in the tying machine B as a fulcrum is provided in series. The other end side of the guide plate 2 is pivoted to the rear upper part of the straw cutter so that it can follow the positional movement of the straw cutter A and can also be released from following the straw cutter. One end of the swinging guide plate 2 is connected to the tying machine so that the guide plate can be switched and held between a posture for feeding waste straw to the binding machine and a posture for blocking the feed of waste straw. When the straw cutter A is moved to the non-cutting position, the waste straw is supplied to the binding machine B via the guide plate 2 which extends the tie 19, and the straw cutter A is moved to the falling path 11.
If the straw is placed in the position, the waste straw is blocked by the guide plate 2 so that it is not fed to the binding machine B side, and is then fed to the straw cutter. Furthermore, the guide plate 2 is uncoupled from the straw cutter to disconnect the straw cutter. When the cutting operation position is set, the waste straw can be dropped from the drop path 11 without being cut or bundled, and three types of waste straw processing can be easily carried out.

In addition, the straw removal to the tying machine, which can carry out three types of straw removal processing but requires precision in maintaining its posture, is carried out accurately without disturbance through an independent conveyance route, and the shredding treatment agent is Since the discharge of unshredded and unbound straw is carried out in common through a falling path formed at the front of the tying machine, the structure as a whole can be made extremely compact, and the unshredded and unbound straw is surrounded by It has the characteristic that it can be discharged in an orderly manner so that it is not affected by wind etc. on the way it falls.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an embodiment of the present invention, and FIG. 1 is a side sectional view of the main part, FIG. 2 is an enlarged view of a part thereof, and FIG. 3 is an explanatory diagram of the operation of FIG. 1. , FIG. 4 is a further operation explanatory diagram of FIG. 1, and FIG.
The figure is a side view showing the transmission part, and FIG. 6 is an explanatory view of the operation of FIG. 5. 1... Straw drainer, A... Base cutter, B... Binding machine, 2... Guide plate.

Claims (1)

[Scope of utility model registration request] A straw dropping passage 11 is provided below the straw discharge part at the straw discharging chamber terminal end 1a, and a straw dropping passage 11 is provided in which the straw can be discharged in an uncut state. The cutter A is installed in such a manner that it can be switched between a state where it cuts the straw while being located in the falling path section and a state where it leaves for work in a non-cutting position in front of the position, and a rear partition that forms the above-mentioned falling path 11. A tying machine B is fixed to the rear of the plate 18, and a guide plate 2 that bends and moves using the front upper end of the deck 19 with a high front slope as a fulcrum in the tying machine B is provided in series, and the other end side of the guide plate 2 is is pivotally connected to the rear upper part of the base cutter so that it can follow the positional movement of the base cutter A, and can also release the following movement with the base cutter, and the guide plate is tied together. 1. A straw cutting and tying device for a combine harvester, characterized in that it is configured to be able to switch between a posture for feeding waste straw to the machine and a posture for blocking the feed of waste straw.