JPH10215673A - Plant foot cover structure for waste straw in combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant foot cover structure of waste straws in a combine harvester for simplifying a structure, preventing the damage of a plant foot cover and improving operability by providing the structure with a guide plate for guiding the vertical turning of the plant foot cover on the rear end side of the plant foot cover. SOLUTION: In the combine harvester for which a waste straw cutter 11 is disposed at the rear end side lower part of a waste straw carrying chain 10 disposed on the rear part of a threshing part, the plant foot cover 15 facing the plant foot side of the waste straws is disposed on the rear part of the threshing part freely vertically turnably with a threshing part side as a supporting point and the guide plate 20 for guiding the vertical turning of the plant foot cover 15 is fitted on the rear end side of the plant foot cover 15. Also, it is preferable to constitute the guide plate 20 for guiding the vertical turning of the plant foot cover 15 by the upper part cover 12 of the waste straw cutter 11 projecting upwards.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a straw base cover for straw conveyed by a straw conveying chain, and more particularly, to pulling a stock base cover that rotates up and down to the tip side by the conveyed straw. The present invention relates to a base cover structure of a waste straw in a combine which can be smoothly rotated without being removed.

[0002]

2. Description of the Related Art In general, in a combine for harvesting and threshing grain culms, straw after threshing is transported to the rear of the machine by a straw transport chain provided behind a threshing unit, and then distributed downward from a transport end. It is dropped on the installed straw cutter, or is discharged to the rear of the aircraft as long straw. In addition, a stock cover facing the stock side of the straw is provided on the straw conveyance path by the straw conveyance chain so as to be vertically rotatable.

[0003] Such a stock cover is pushed up by the conveyed straw and pivots up and down. A straw transport chain for conveying the straw is directed from the base of the straw to the tip of the straw. Since the straws conveyed by the straw conveying chain are obliquely drawn toward the carrying direction of the stock base cover, a phenomenon occurs in which the stock base cover is forced unreasonably. It worked and was likely to be damaged.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and even if the stock base cover is rotatable up and down, the spikes are conveyed obliquely by the straw. An object of the present invention is to provide a drain base cover structure in a combine that can prevent the base cover from being pulled into the side, thereby preventing damage to the base cover and smoothly rotating the base cover up and down.

[0005]

In order to solve the above-mentioned problems, a technical measure taken by the present invention is to arrange a straw cutter below a rear end of a straw transport chain provided behind a threshing unit. In the installed combine, at the back of the threshing section, a stock base cover facing the stock side of the waste straw is provided so as to be vertically rotatable with the threshing section side as a fulcrum, and at the rear end side of the stock base cover, By providing a guide plate for guiding the vertical rotation of the original cover, it is possible to restrict the vertical rotation of the original cover from being drawn obliquely in the direction in which the straw is conveyed. By using the upper cover of the straw cutter protruding upward, a simple structure is provided without separately providing a guide plate.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail based on embodiments shown in the drawings. First, in FIGS. 1 to 3, reference numeral 1 denotes a traveling body of a combine equipped with a crawler traveling device 2, and a threshing unit 3 is provided on one side of the traveling body 1.
Is mounted, and a handling drum 4 is mounted on the threshing unit 3. 5
Is a feed chain arranged along the handle of the threshing unit 3,
Reference numeral 6 denotes a clamping rail which is disposed above the feed chain 5 so as to oppose the culm which has been cut and lifted by a pre-processing unit (not shown). Transport toward the rear of the aircraft. Then, the transported grain culm is threshed by the handling drum 4 in the process of passing through the handling port, and the threshed grain is leaked from the receiving net and sorted by the sorting unit 7. Reference numeral 8 denotes a discharge spiral for discharging the sorted granules outside the machine, and 9 denotes a side cover.

Reference numeral 10 denotes a straw transporting chain provided behind the threshing unit 3, and the straw transporting chain 10 inherits the straw after threshing from the feed chain 5 and transports it to the rear of the machine. As shown in FIG. 3, the straw transport chain 10 is disposed obliquely from the transport terminal end of the feed chain 5 toward the tip side of the rear of the machine as in the related art.

Reference numeral 11 denotes a straw cutter provided below the rear end side of the straw transport chain 10. The straw cutter 11 is equipped with a disk-type multi-cutter. The straw that has fallen into the straw cutter 11 from the terminal end is chopped. Reference numeral 12 denotes an upper cover that protrudes upward and fixes the straw cutter 11 to the rear of the machine. 13 is a side cover of the straw cutter 11, 14
Is a rear cover.

Reference numeral 15 denotes a front and rear stock base cover provided behind the threshing unit 3, and the stock base cover 15 faces the stock base side upper surface of the waste straw. The stock base cover 15 has a boat-shaped curved portion 15a formed in the front half thereof, and the tip is pivotally supported by the threshing unit 3 via a fulcrum shaft 16 so as to be vertically rotatable. I have. Then, the straw inherited from the terminal end of the feed chain 5 to the straw transport chain 10 enters the lower surface side of the stock cover 15 through the boat-shaped curved portion 15a,
The stock cover 15 is pushed up and turned up and down in accordance with the amount of waste straw, and conveyed backward.

Reference numeral 17 denotes an arcuate guide groove formed inside the base cover 15, and the guide groove 17 is provided with a pin 1 on the machine body side.
8 restricts the rotation range of the stock base cover 15. Further, the fulcrum shaft 16 is provided with a spring for urging the stock cover 15 upward, thereby canceling the force of the stock cover 15 rotating downward by its own weight, and thereby the stock pushed up by the waste straw. The original cover 15 is configured to smoothly rotate up and down. Reference numeral 19 denotes a slit hole for reducing the weight of the base cover 15.

At the rear end of the stock cover 15,
A guide plate 20 that guides the base cover 15 to rotate vertically is provided. That is, as shown in FIG.
The upper cover 12 for fixing the upper cover 1 protrudes upward from the fuselage. The side surface 12a of the upper cover 12 is formed in a smooth flat shape, and the upper cover 12 is brought into sliding contact with the stock cover 15 from the inside, that is, from the tip side. Thus, a guide plate 20 for guiding the rotation of the stock cover 15 in the vertical direction is configured.

With the above-described structure, the straw after threshing is transported rearward by the straw transport chain 10 during the harvesting and threshing operation. At this time, the straw inherited from the feed chain 5 is a boat-shaped curved portion 15 of the stock cover 15.
a enters the lower surface of the stock cover 15 and the stock cover 1
5 is pushed up and turned up and down. And even if the transport direction of the conveyed straw is oblique toward the tip side, the guide plate 20 protruding upward is in sliding contact with the rear end side of the stock base cover 15 from the tip side. It is possible to restrict the stock cover 15 from being pulled into the spike side, thereby preventing the stock cover from being damaged. Further, since the guide plate 20 is formed in a smooth planar shape, the stock base cover 15 does not rattle left and right, and is guided by the guide plate 20 and smoothly rotates up and down. Also, since the guide plate 20 is constituted by the upper cover 12 of the straw cutter 11 projecting upward,
It is not necessary to provide a specially updated guide plate, and the entire structure can be simplified.

[0013]

In summary, the present invention relates to a combine in which a straw cutter is disposed below the rear end of a straw transport chain provided behind a threshing unit, and a combine for removing a straw behind the threshing unit. A stock cover facing the stock base side is provided so as to be vertically rotatable around the threshing unit side, and a guide plate for guiding the stock stock cover up and down is provided at the rear end of the stock base cover, , Since the guide plate for guiding the vertical rotation of the stock cover is constituted by the upper cover of the straw cutter protruding upward,
When the straw is transported by the straw transport chain, the stock cover that rotates up and down is pulled in to the tip side by the transported straw by the guide plate provided on the rear end side of the stock cover. Can be prevented, and the stock cover can be prevented from being damaged, and can be smoothly rotated up and down. Also,
In the case where the guide plate is constituted by the upper cover of the straw cutter protruding upward, it is not necessary to provide another guide plate, so that the entire structure can be simplified.

[Brief description of the drawings]

FIG. 1 is a rear left side view of a combine.

FIG. 2 is a rear view of the same stock source side.

FIG. 3 is a plan view of a main part.

FIG. 4 is a side view showing a rotating state of a stock cover.

FIG. 5 is a rear view of the same.

[Explanation of symbols]

 Reference Signs List 3 Threshing unit 10 Waste straw transport chain 11 Waste straw cutter 12 Top cover 15 Stock cover 20 Guide plate

Claims (2)

[Claims] 1. A combine having a straw cutter arranged below a rear end of a straw transport chain provided behind a threshing unit, wherein the stock mill facing the stock side of the straw behind the threshing unit. A cover is provided so as to be vertically rotatable around the threshing unit side, and a guide plate for guiding the vertical rotation of the stock base cover is provided at a rear end side of the stock base cover. Straw stock cover structure. 2. A stock cover of a straw in a combine according to claim 1, wherein the guide plate for guiding the vertical rotation of the stock cover is constituted by an upper cover of a straw cutter protruding upward. Construction.