JPH1023823A - Reaped grain straw-carrying device for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the reaped grain straw-carrying device for a combine harvester, capable of rapidly adjusting the carrying and feeding depth of reaped grain straws into the feed chain of a threshing device by adjusting the reaped grain straw-carrying device of the combine harvester. SOLUTION: In this combine harvester, reaped grain straws are carried and fed into the feed chain of a threshing device 3 with a grain straw-carrying device 3 comprising a root side-carrying device 1 for nipping and carrying the root sides of the reaped grain straws and an ear side-carrying device 2 for lag-engaging and carrying the ear sides of the grain straws. A rotation support shaft 6 projected on the straw body side of the root side-carrying device 1 is disposed on the starting side of the device 1, and the rotation support shaft 7 of the ear side-carrying device 2 is disposed on the final end side of the device 2. The rotation support shafts 6, 7 may be disposed on the opposite sides, respectively. Thus, the body positions of the grain straws carried and fed from the grain straw-carrying device 3 into the feed chain can be moved and adjusted to change the threshing depths of the grain straws.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvested grain culm conveying device for transferring a harvested grain culm of a combine to a feed chain of a threshing device.

[0002]

In a self-removing combine in which the spikes are fed into a threshing chamber while threshing the feedstock with a feed chain, threshing is carried between a cutting device and a threshing device. A threshing load is stabilized by moving the grain culm conveying device in the direction of the culm body and feeding the culm to a certain depth regardless of the culm length and threshing. However, when the amount of movement adjustment of the grain culm conveying device is large, the end portion is likely to come into contact with the start end of the feed chain, it is difficult to take adjustment allowance, the inherited posture of the grain culm changes significantly, and culm leakage occurs. There are many.

[0003]

SUMMARY OF THE INVENTION The present invention relates to a grain culm comprising a stock side conveying device 1 for nipping and conveying the side of a harvested grain culm, and a spike side conveying device 2 for conveying the cut side by lagging and engaging the spike side. Transfer device 3
In the combine for supplying the grain culm to the feed chain 5 of the threshing device 4, the support shaft 6 for rotating the stock side conveying device 1 along the culm body direction is provided at the starting end and the spike side conveying device 2 is turned. Is provided on the end side or on the side opposite thereto, and the culm position of the grain culm to be succeeded and supplied to the feed chain 5 from the grain culm conveying device 3 is adjusted by moving and adjusting the culm position. The cutting grain culm conveying device is provided so as to be able to change and adjust.

[0004]

According to the present invention, the grain stalks harvested by the mowing device are clamped at the base of the stock by the stock-side transport device 1 and the spike side is engaged with the lug of the ear-side transport device 2 to feed the feed chain of the threshing device 4. 5, and the spikes are supplied to the threshing room for threshing. The interval between the stock-side transport device 1 and the spike-side transport device 2 is changed and adjusted according to the culm length of the cut and transported grain culm. In the case of a long culm, the starting end side of the spike-side transfer device 2 is moved around the support shaft 7 to the tip end of the culm body, and the end side of the stock-side transfer device 1 is moved around the support shaft 6 toward the stock base. If the culm is short, move it to the opposite side.

[0005] In the case of a long culm, when the end side of the ear-side conveying device 2 is moved to the tip side of the culm, the starting end side of the stock-side conveying device 1 is also moved to the ear side, and For culms,
Move them to the opposite side. As described above, since the stock-side transport device 1 and the spike-side transport device 2 have the movement adjusting support shafts 6 and 7 disposed on the opposite sides of the start end side and the end side, respectively, By changing the interval between the two, the nipping / conveying position can be changed according to the long culm and the short culm, the transfer position to the feed chain 5 can be adjusted, and the supply depth to the threshing room can be kept constant. The amount of movement adjustment of the transport devices 1 and 2 can be reduced, and quick adjustment can be performed.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A combine is supported on a body 9 having a crawler 8 by a cutting support shaft 14 by allowing a rear end of a cutting frame 11 of a cutting device 10 to be vertically rotatable with respect to a bracket 13 on a transmission case 12. A threshing device 4 is mounted behind the mowing device 10, and a Glen tank 15 for storing threshing grains is mounted on the lateral side of the threshing device 4, and the threshing device 4 is operated on the lateral side of the mowing device 10 at the front. An engine is mounted under the base 16, the cockpit 17, and the engine cover 18, and by driving the engine, the respective parts of the cutting device 10, the threshing device 4, the crawler 8, and the like are driven to perform cutting and threshing of the culm. be able to.

In the mowing apparatus 10, a mowing support shaft 14 of the mowing frame 11 is disposed at a lower front part of a grain culm supply port of the threshing apparatus 4, and a lift cylinder 19 which expands and contracts with the vehicle body 9 by hydraulic pressure. The cutting blade device 20 at the front lower end is moved up and down. A grass plant 21 is disposed in front of the cutting blade device 20, and a grain stalk raising device 22 is provided at the rear side of the grass plant 21 to raise the grain stalk guided by grass wedding to a certain standing posture. A collecting device 23 is provided on the rear side of the raising device 22, and the stalks are harvested by the cutting blade device 20 while being scraped and collected. The harvested grain culm by the collecting device 23 is conveyed by the cereal culm conveying device 3 and is interposed between the feed chain 5 along the conveying port of the rear threshing device 4 and the clamping rod 24. .

The grain culm conveying device 3 includes a cutting frame 11.
The upper part of the cutting support shaft 14 and the front middle part are supported rotatably around fixed left and right support shafts 6 and 7. The stock-side transfer device 1 is configured such that the boss 26 at the front end of the transfer frame 25 is fitted to the support shaft 6 so that the rear end can rotate up and down. The structure is such that the culm can be conveyed by clamping the culm between the tensioned chain 27 and the clamping rod 28 provided along the outside.

A power transmission mechanism is provided in the mowing frame 11 so as to drive each part of the mowing device 10 by receiving power transmitted from the transmission case 12 side. A transmission shaft 33 is supported in the support shaft 6 and has a bevel gear 29 at the distal end. The boss 26 of the transfer frame 25 is fitted to the drive shaft 33 to drive the chain 27.
And the chain 27 can be transmitted.

The transport frame 25 of the stock transport apparatus 1
Is rotated up and down around the support shaft 6 via an arm 31 integrated with a drive shaft 30 driven by a motor M1 mounted on the mowing frame 11, a link 32, and the like. Reference numeral 43 denotes a roller on the transport frame 25 side, and the link 32
The support arm 44 is rotated up and down by the motor M1 and the roller 43 is slid while the transport frame 25 is being rotated.
Is turned up and down.

The spike-side transfer device 2 includes a transfer frame 36.
A scraping lug is arranged on a chain that is stretched between sprockets mounted on the front and back, and the spike side of the grain stalk is engaged between the scraping lugs and conveyed. It has a guide rod 37 for guiding the transport of the grain stem along the portion. In the boss 38 provided on the end side of the transfer frame 36, the boss 26 is provided.
It has the same bevel gear as the inside, and by fitting this boss 38 to the support shaft 7 above the mowing support shaft 14 at the base of the mowing frame 11, it engages with a bevel gear 39 mounted inside the support shaft 7. The spike-side transport device 2 is driven by a transmission mechanism in the mowing frame 11.

Also, the transport frame 3 of the spike-side transport device 2
6 is rotatable around the support shaft 7, and the rotation is performed by a shaft 40 driven by a motor M2 mounted on the mowing frame 11, an arm 41 integrated with the drive shaft 40, a link 42, and the like. It is interlocked through. 45 is the transport frame 3
6 is supported by a support arm 46 which is vertically rotated by a link 42. The support arm 46 is vertically rotated by the drive of a motor M2, so that the roller 45 is slid to move the transport frame 36 up and down. Rotate.

The grain culm transport device 3 is transported by rotation of the stock side transport device 1 around the support shaft 6 by the motor M1 and rotation of the spike side transport device 2 around the support shaft 7 by the motor M2. Adjustments are made according to the length of the culm. The drive control of these motors M1 and M2 is performed by the output drive from a depth control device CPU having a microcomputer in response to detection inputs from the tip sensors S1 and S2 and the stock sensor S3. The tip sensor S1 detects the upper part of the spike located above the spike-side transport device 2, and the tip sensor S2 detects this lower part. The stock sensor S3 detects contact between the grain culm between the spike-side transfer device 2 and the stock-side transfer device 1.

In the combine operation, the depth control device C
When the cutting clutch 47 of the transmission of the mowing device 10 is in the disengaged position or the stock sensor S3 does not detect the grain culm in the state where the PU is turned on, the stock transport device 1 moves upward and the spike transport device 2 Is moved down and almost parallel to the reference position for short culm transport. At the time of the cutting operation, the cutting clutch 47 is engaged, and the cut grain culm is supplied to the feed chain 5 of the threshing apparatus 4 via the grain culm transport device 3. At this time, the stock sensor S
3, when the culm length is appropriate, the spike is located between the spike sensors S1 and S2, and neither of the motors M1 and M2 is driven. When S1 and S2 are detected, the stock-side transport device 1 is rotated to the lower side A by the motor M1, and the spike-side transport device 2 is rotated to the upper side B by the motor M2. When the long culm is conveyed in this way, the head section is detected by the head sensors S1 and S1.
2 and S1 is not detected, and the adjustment control by the motors M1 and M2 is stopped.

When the short culm is conveyed from the long culm conveyance state, the spike sensors S1 and S2 are not detected, and the stock side conveyance device 1 is moved in the direction opposite to the arrow A by the motors M1 and M2. The transport device 2 is rotated in the direction of the arrow B and controlled so as to approach the reference position, and the control is stopped in a state where the tip is detected by the tip sensor S2 and not detected in S1.

In the illustrated example, the support shaft 6 of the stock side transfer device 1 is shown.
Is provided at the start end side, and the support shaft 7 of the spike-side transfer device 2 is provided at the end side. On the contrary, the support shaft 6 of the stock-side transfer device 1 is provided at the end side, and the spike-side transfer device is provided. The second support shaft 7 may be provided on the starting end side.

[Brief description of the drawings]

FIG. 1 is a side view of a grain culm conveying device.

FIG. 2 is an exploded perspective view and a partial cross-sectional view thereof.

FIG. 3 is a block diagram of a handling depth control.

FIG. 4 is a side view of the combine.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 stock side transfer device 2 spike side transfer device 3 grain culm transfer device 4 threshing device 5 feed chain 6 support shaft 7 support shaft

Claims (1)

[Claims] 1. A grain-stalk conveying device 3 comprising a stock-side conveying device 1 for pinching and conveying a stock side of a harvested grain culm and a spike-side conveying device 2 for conveying the spike side by lag engagement. In the combine for supplying the grain culm to the feed chain 5, the stock-side transport device 1 has a pivot 6 for rotation along the culm direction at the start end and a pivot 7 for the spike-side transport device 2. The culm position of the inherited supply cereal stem from the cereal stem conveying device 3 to the feed chain 5 is adjusted by moving and adjusting the handling depth by having the end portion side, or having it on the side opposite to these, A harvested grain culm transport device provided.