JPH11289845A - Combine grain culm conveying and feeding device - Google Patents

Abstract

(57) [Summary] [Problem] To accurately guide the transfer of grain culm by a transfer rod between a grain culm conveying device for conveying a harvested grain culm of a combine and a feed chain of a threshing device irrespective of a change in cutting height. Make it run smoothly. SOLUTION: A take-over rod 7 provided between an end portion of a grain culm conveying device 4 and a start end portion of a feed chain 6 is vertically turned to a position above a cutting / elevating shaft 3 portion and a start end portion of the feed chain 6. A take-over rod base 9 having a freely rotatable support portion 8 and extending from the turn support portion 8 to the lower front side; and a rear feed from the take-over rod base 9 bent at an acute angle to the rear side. Takeover rod guide 1 extending along the starting end of chain 6
The configuration of a combine grain conveying and feeding device provided with a zero.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain culm conveying and feeding apparatus for conveying a harvested grain culm of a combine from a reaper to a feed chain of a threshing apparatus.

[0002]

When the cereal stalks cut by the mowing device are supplied to the starting end of the feed chain of the threshing device while being conveyed by the cereal culm conveying device, the feed chain is fed from the end of the cereal culm conveying device. There is a configuration in which a takeover rod is provided over the start end of the feed chain to guide the takeover grain stem onto the feed chain.

[0003] In this embodiment, when the grain culm conveying device is moved up and down integrally with the mowing device, the resilient position of the take-over rod with respect to the feed chain, the interval between the clamping culm entrance portions of the grain culm and the like are greatly changed. If the mowing device is raised to a raised position and the cutting height is increased, shedding of the culm will be more likely to occur, and there will be more stagnation of the culm between the clamping entrance between the feed chain and the culling rod. Supply to the country is difficult to carry out smoothly.

[0004]

SUMMARY OF THE INVENTION The present invention relates to an end of a grain culm transport device 4 which can be rotated up and down around a cutting elevating shaft 3 integrally with a reaper 2 with respect to a vehicle body 1 and clamps and transports a harvested grain culm. And a take-over rod 7 that presses the take-over grain culm onto the feed chain 6 and guides the take-over of the take-over grain, between the section and the feed chain 6 starting end of the threshing device 5 receiving the supply of the transported grain culm. At a position above the lifting shaft 3 and the feed chain 6 starting end,
A takeover rod base 9 having a vertically rotatable pivot support part 8 and extending from the pivot support part 8 to a lower part on the front side; And a take-over rod guide 10 extending along the start end of the feed chain 6 on the side of the feed chain 6.

[0005]

The cereal stalks cut by the reaping device 2 are transferred to the stalk transfer device 4 and guided by the transfer rod 7 to be supplied to the starting end of the feed chain 6 of the threshing device 5.
The takeover rod 7 extending along the starting end of the feed chain 6 extends from the rotation support section 8 to the lower front side of the takeover rod base 9, and the takeover rod guide section 10 is bent at an acute angle to form the feed chain 6 on the rear feed chain 6. It is formed so as to extend. In addition, the rotation support portion 8 of the transfer rod base 9 is set at a position above the lifting shaft 2 and the start end of the feed chain 6, and is set as close to the front of the feed chain 6 as possible.

Therefore, even if the mowing device 2 is moved up and down around the mowing elevating shaft 3, the change in the distance from the starting end of the feed chain 6 to the clamping position of the take-over rod 7 can be reduced, and the cutting height can be adjusted. Regardless, the handover of the grain can be stabilized. In addition, the upper end of the feed chain 6 and the transfer rod guide 10
, The interval of the takeover entrance portion between them can be narrowed, the shedding of the grain stalk is reduced, and accurate takeover can be performed.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A combine is constructed by attaching a rear end portion of a cutting frame 15 having a grain stalk raising device 12, a feeding device 13, a cutting blade device 14 and the like on a vehicle body 1 having a crawler traveling device 11, and a suspension bracket. The vehicle body 1 is suspended by a lift cylinder 17 which is suspended by a hydraulic cylinder so as to be able to move up and down around a horizontal harvesting elevating shaft 3.

[0008] The grain stalk raising device 4 is provided with a stock transport chain 18 and a clamping rod 19 for inheriting and transporting the collected grain culm, a spike transport tine 20 for tine engaging the spike and transporting the spike. And a rod 21. The rear end of the frame 4 is supported on the upper part of the cutting elevating shaft 3 of the cutting frame 15, and the front end can be turned up and down with respect to the cutting frame 15. Adjustment of the handling depth to the device 5 can be performed.

Further, the grain culm transporting device 4 can vertically move about the cutting elevating shaft 3 by the expansion and contraction of the lift cylinder 17 so as to move up and down integrally with the cutting frame 15. It is possible to adjust the cutting height and to move up and down to a non-cutting position or a cutting position.
A threshing device 5 is mounted behind the reaper 2. This threshing device is provided with a lower feed chain 6 for nipping and transporting the root portion of the threshing cereal stem along the front-rear direction on the outside and a clamping rod 22 on the upper side. In the threshing chamber 23, a handle drum 24 rotating around a handle cylinder axis in the front-rear direction is provided, and while being supplied with grain stalks conveyed between the feed chain 6 and the clamping rod 22, threshing is performed. , And is sorted on a swing sorting shelf or the like in a sorting room 25 below the threshing room 23.

At the rear of the threshing device 5, a culling device 26 for transporting and discharging the threshed culms is provided from near the rear end of the feed chain 6 to the rear of the culm chamber 27 on the tip side. It is composed of a guide rod 28 and a chain chain 29 for pinching and transporting the root of the culm, a guide rod 30 and a chain 31 for pinching and transporting the ear, and supporting frames 32 and 33 for the threshing frame. Etc. are supported.

A cockpit 34 and a cockpit 35 are arranged on one side of the vehicle body 1, and an engine is mounted in the lower rear portion of the cockpit 34 to drive and drive various parts. A grain tank 36 for accommodating grains selected by threshing by the threshing device 5, a grain auger 37 for discharging grains from the grain tank 36 to the outside of the machine, and the like are arranged. A takeover rod 7 is provided between the end of the grain culm transport device 4 and the start end of the feed chain 6, and the root of the grain culm that is pinched and released from the end of the stock transport chain 18 is Pressing from the upper side to the lower side guides the feed chain 6 to the upper surface.

In the take-over rod 7, the take-over rod base 9 and the take-over rod guide 10 are bent at an acute angle L-shape, and the upper end of the take-over rod base 9 is transferred to the spike portion of the grain culm transfer device 4. The rotation supporting portion 8 is made rotatable up and down with respect to the guide rod 21 located outside the path, and the takeover rod 7 is resiliently springed toward the feed chain 6 by a spring 38. The feed chain 6
Is extended along the outside of the cereal grain transfer port 39 of the threshing chamber 23, and the front end is provided so as to protrude forward from the cereal culm supply port 40 on the front side of the threshing chamber 23, and is wound around the sprocket 41. And driven by a drive sprocket 42. The starting end of the feed chain 6 is formed in an arc shape around the sprocket 41, and is configured so as to be stretched upward and inclined over the clamping rod 22 at the rear position on the grain culm supply port 40 side.
Further, a grain culm supply funnel 43 is provided on the spike tip side of the start end of the feed chain 6, as viewed from the grain culm supply port 40.

The turning support portion 8 of the take-over rod base 9 is provided above the starting end of the feed chain 6 and above the mowing elevating shaft 3 in a side view. Also, mowing frame 1
In the case where the cutting height is adjusted by turning up and down the cutting chain 5 around the cutting elevating shaft 3, the turning support portion 8 is provided at a position where it can move back and forth along the starting end of the feed chain 6. .

When the transported cereal culm by the cereal culm transport device 4 is taken over from the end portion to the upper surface of the feed chain 6, the culm is guided by the takeover rod 7 to prevent the takenover culm from falling off. The take-over rod 7 has a take-over rod base 9 extending from the rotation support portion 8 to the lower front side and extending forward, and is bent at an acute angle from the lower end portion to take over the start end of the rear feed chain 6. Since the rod guide portion 10 is formed, the takeover rod guide portion 10 is moved closer to the feed chain 6 from the front while the rotation support portion 8 is positioned as far back as possible with respect to the feed chain 6 and above. Thus, the interval A between the transfer inlet portions 44 can be maintained narrow.

Therefore, even if the mowing device 2 is moved up and down and the grain culm conveying device 4 moves up and down with this, the rotation supporting portion 8 of the take-over rod 7 is almost along the starting end of the feed chain 6. It is moved back and forth to stabilize the nipping and taking-over position of the cereal culm between the feed chain 6 and the traversing rod guide portion 10 to stabilize the cereal culm transfer guide. In FIGS. 4 and 5, the link plate of the spike chain 31 and the projection 45 of the link plate of the ear part chain 31 with respect to the link plate of the root chain 29 of the culm transport 26.
Are formed longer to enhance the scraping effect of the culm ear portion. In the illustrated example, the protruding parts 45 long at every other tooth interval are formed only on the link plate on the base side of the ear part chain 31. The projection 45 has an arc-shaped relief angle in order to reduce the rotation of the culm.

Further, such a long protrusion 45 of the ear chain 31 may be formed only on the link plate on the tip side, or may be formed on both the link plate on the stock side and on the ear part.

[Brief description of the drawings]

FIG. 1 is an operational side view of a threshing device feed chain starting end.

FIG. 2 is a perspective view of a grain culm conveying device.

FIG. 3 is a side view of the combine.

FIG. 4 is a plan view of the culm device.

FIG. 5 is a side view of a part thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Harvesting device 3 Harvesting raising / lowering axis 4 Grain culm conveying device 5 Threshing device 6 Feed chain 7 Takeover rod 8 Rotation support part 9 Takeover rod base 10 Takeover rod guide part

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Takaaki Murata 1-Yachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. An end portion of a grain culm conveying device 4 which is rotatable up and down around a cutting elevating shaft 3 integrally with a reaping device 2 with respect to a vehicle body 1 and pinches and conveys a harvested grain culm. A takeover rod 7 that presses the takeover grain stalk onto the feedchain 6 and guides the takeover cultivation over the feedchain 6 between the feed chain 6 and the feed chain 6 of the threshing device 5 and the feedchain 6. At the position above the start end, there is a vertically rotatable pivoting support portion 8, and a takeover rod base 9 extending from the pivotal support portion 8 to the lower front side, and a rear side from the takeover rod base 9. And a takeover rod guide portion 10 which is bent at an acute angle and extends along the start end of the rear feed chain 6.