JPH06303831A - Grain culm conveying structure of multiple row reaping combine harvester - Google Patents

Abstract

PURPOSE:To obtain a grain culm conveying apparatus capable of rationally carrying out threshing treatment in a thresher by conveying reaped grain culms in a state where culm length is nearly uniformly arranged. CONSTITUTION:Plural conveying apparatus 9a, 9b and 9c conveying grain culms reaped in reaping places arranged in rows along reaping width direction to each apparatus and carrying the grain culms backward is arranged in Y-shaped form when viewed in a place and conveyed grain culms in conveying apparatus 9a, 9b and 9c are joined and delivered and conveyed to a feed chain 12 in a thresher 3 to constitute grain culms conveying structure of multiple row reaping combine. In this grain culms conveying structure, the length of conveying passage and driving rate of the conveying apparatus 9a, 9b and 9c are set so that grain culms joined with same reaping timing are mutually uniformly joined.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of transfer devices for individually transferring and transferring backward the grain stalks mowed at a row of mowing positions along the cutting width direction in each mowing strip. Y
The present invention relates to a multi-row mowing combine grain culm transporting structure, which is arranged in a letter shape and is configured to join the transport grain culms in respective transporting devices and to transfer and transport the grain culms to a feed chain in a threshing device.

[0002]

2. Description of the Related Art In a conventional multi-row combine,
Mowing the planted culms at the mowing section at the front end of the machine, merging the grain culms of each of the trimmed lines and transporting them to the start end of the feed chain in the threshing device by the vertical transport device, It is configured to handle while sandwiching the side, and for changes in the culm length of the planted grain culm, the sandwiched portion by the vertical transport device in the culm length direction based on the detection result of the culm length detection sensor. A configuration is adopted in which the handling depth adjustment control is changed [see, for example, Japanese Patent Application Laid-Open No. 4-365420], and the merging conveyors in each row are operated at the same drive speed.

[0003]

However, in this type of combine, the feed chain in the threshing device is generally arranged on one lateral side of the machine body, so that the grain culm transport route is oblique in plan view. As a result, the lengths of the transport paths of the respective strips must be different, and at the same time, the timing of merging the harvested grain stems may be displaced forward and backward. Then, for example, in the case of performing so-called mowing work, in which the divider at the front end of the machine body is raised to raise the mowing part to avoid contact with the ridge during mowing work at the edge of the ridge. If the culm length of the culm is changed abruptly, the culm length of the transported grain culm may change alternately, and the handling depth may be adjusted frequently within a short time. There is also a drawback that culms and culms of culms are conveyed alternately and left untreated easily. It is an object of the present invention to eliminate the above-mentioned problems and to allow a threshing device to reasonably perform a handling process by transporting a cut grain culm in a state where the culm lengths are almost uniform.

[0004]

A characteristic configuration of the present invention is that, in the grain culm conveying structure of the multiple-row mowing combine described at the beginning, the slaughtered grain culms joined by the respective conveying devices have substantially the same mowing timing. The point is that each transport path length and drive speed of each of the transport devices are set so that the harvested grain culms are merged together.

[0005]

[Function] Since the conveying path lengths and the driving speeds of the respective conveying devices are set so that the grain culms cut at the harvesting grain culms in each row are gathered at almost the same mowing timing, the length of each transporting route and the driving speed are set, for example, ridges. Even when high-cutting work is performed at this time, the transported grain culms to be supplied to the threshing device are all of the same culm length and are supplied together. This makes it easy to take measures for handling the culm.

[0006]

[Effects of the Invention] Therefore, in response to changes in the reaping work situation,
When adjusting work to maintain the handling condition for the threshing device in an appropriate state or taking measures for extremely short culm, it is avoided that unnecessary operations such as frequent adjusting work are performed, and the threshing treatment capacity is reduced. In other words, it has become possible to provide a multi-row cutting combine capable of maintaining an appropriate handling condition.

[0007]

Embodiments will be described below with reference to the drawings. Figure 1
Shows the front of the self-removing combine. In this combine, a threshing device 3 is mounted on a machine body frame 2 having a pair of right and left crawler traveling devices 1, and a mowing pretreatment unit 4 is movably connected to a front part of the machine body so that the right of the mowing pretreatment unit 4 can be obtained. The boarding operation unit 5 is provided on the side. The pre-reaping processing unit 4 is a weeding tool 6 for allocating and dividing the culm to be reaped, a raising device 7 for raising the fallen culm in an upright posture, and a reaping device 8 for cutting the root of the raised culm. , A plurality of auxiliary transporting devices 9a, 9b, 9c for collecting the harvested grain culms of each line to the center side in the width direction, rearward while gradually changing the posture of the gathered grain culms in the standing posture to the sideways posture. Threshing device 3
The vertical conveyance device 11 for conveying toward the start end of the sandwiching conveyance device 10 in FIG. 1 is provided, and the whole pre-mowing processing unit 4 is supported on the machine body frame 2 so as to be vertically movable around the horizontal axis P. As shown in FIG. 2, the pinching and conveying device 10 for threshing work is an endless feed chain 12 that is rotationally driven.
And a sandwiching rail 13 arranged in a state of being opposed to the sandwiching rail 13. The sandwiching rail 13 is configured by pivotally connecting a plurality of divided bodies 13a having a U-shaped cross section, and each pivotally supporting connection point is fixed by a fixing base. A coil spring 16 externally fitted to a guide rod 15 that is penetratingly supported by 14 and is positionally regulated is biased downward so that each divided body 13a can bend and hold the grain culms and convey them.

Each of the auxiliary transfer devices 9a, 9b, 9c is
Each transport path length and driving speed are set so that the grain culms of each row cut at substantially the same cutting timing are joined together. That is, as shown in FIG. 3, the grain culms in the strips on the uncut side and the strips in the middle are the belts 17 with the locking projections.
a, 17b and scraping rotators 18a, 18b are gathered together on the center side by auxiliary transporting devices 9a, 9b, and the strips on the trimmed side are belts 17c with locking projections, scraping rotators 18c. The auxiliary transporting device 9c configured by the sandwiching and transporting device 19 is configured to be merged and transported to the gathering position. Therefore, the auxiliary transfer devices 9a and 9b in the uncut side strip and the intermediate strip are set to have substantially the same transport path length and substantially the same drive speed, and the auxiliary transport device 9c for the strip on the cut side has a long transport path. Therefore, for example, by changing the number of teeth of the gear or the winding diameter of the belt and setting the drive speed higher than the former two, the grain culms of each row cut at almost the same cutting timing are aligned. It is configured to be merged.

The vertical transfer device 11 is composed of a tip-side locking transfer device 11a and a stocker-side clamping transfer device 11b, and an electric motor 20 with a speed reduction mechanism allows relative vertical swing operation around the horizontal axis. Each of the auxiliary transport devices 9 is configured.
By changing the sandwiching position of the grain culms that are jointly conveyed from a, 9b, and 9c in the culm length direction, the depth of entry into the handling chamber 3a of the threshing device 3 (handling depth) is always controlled appropriately. Configured. That is, a pair of upper and lower grain culm detection sensors 21 and 22 for detecting the culm length of the transported grain culm are provided in the grain culm transport path, the short culm side detection sensor 21 always detects the grain culm, and the long culm side detection sensor 22 is The control device 23 equipped with a microcomputer drives and controls the electric motor 20 so as to be in the non-detection state, and vertically moves the vertical transfer device 11 so that the tip of the grain stem is located between the sensors 21 and 22. Dynamic control.

The threshing device 3 is a carrying device 1 for sandwiching the cut culm.
When the root side is clamped by 0, the tip side is driven by the handling barrel 3b that is driven to rotate in the handling chamber 3a, and the threshing work is performed. And, the vertical transfer device 11 is provided with the threshing operation state switching means A capable of switching between a state in which the feed chains 12 carry and hold the grain culms and a state in which all the culms are fed into the handling chamber. When the short culm side detection sensor 21 detects the absence of grain culm despite being operated to the side, the length of the transported grain culm is an extremely short culm that cannot be handled by the depth adjustment. When it is judged that there is, the threshing work state switching means A is provided with a switching control means for automatically switching from the state of sandwiching and transporting the grain culms by the feed chain 12 to the state of putting all the culms. The short culm side detection sensor 21 constitutes culm length detecting means B. More specifically, one of the plurality of guide rods 15 for supporting the sandwiching rail 13 is provided so as to be capable of being driven upward by an electric motor 25 via a link mechanism 24, and is provided at a sandwiching action position located on the lower side and an upper side. It is configured so that it can be switched to a position where it is retracted to release the sandwiched state of the grain culms. Therefore, by switching the guide rod 15 to the clamping release position,
The grain culm which is being transported to the location is released from the sandwiched transport by the feed chain 12 and the sandwiching rail 13, and the whole is pulled into the handling chamber. That is, the threshing release electric motor 25 constitutes the threshing operation state switching means A. Then, the clamping release electric motor 25 is configured to be drive-controlled by the control device 23, and the control device 2
3 is the short culm side detection sensor 2 even though the handling depth adjusting electric motor 20 is driven to the deepest handling side.
When 1 detects the absence of grain culm, it is configured to drive the nipping release electric motor 25 after a predetermined transportation required time to switch the guide rod 15 from the nipping action position to the nipping release position. There is. That is, the control device 23
The switching control means is constituted by. As a result, for example, when performing the mowing work on the edge of the ridge, when performing the mowing work while making a detour upward so that the weeding tool 6 does not contact the ridge, the cutting height becomes high and the length of the mowing culm is short. However, in such a case, the short culm side detection sensor 21 detects the absence of the grain culm, and it is possible to prevent the unhandled portion from being left in the above-mentioned all culm throwing state. .

The pinch release position is the feed chain 1
It may be set in the latter half of the sandwiching and conveying path by 2. By doing so, the handling process in the handling room 3a is mostly performed at the front end of the transport path, and the handling process load is small in the latter half, so the threshing work load becomes excessive with the introduction of all culms. Can be suppressed.

Despite the fact that the electric motor 20 for adjusting the handling depth is driven to the deepest handling side in place of the one for automatically controlling the threshing work state switching means A as described above. When the short culm-side detection sensor 21 detects the absence of grain culm, the control device activates an alarm buzzer to alert the airframe pilot to pay attention to the pilot connected to the control device. You may comprise so that the threshing work state switching means A may be switched by switching the manual switch.

As the culm length detecting means B for detecting whether or not the length of insertion of the cut grain culm into the handling chamber is equal to or less than a set value, instead of using the culling depth adjusting sensor as described above. As shown in FIG. 4, a dedicated culm length detection sensor 26 for detecting that the culm length is equal to or shorter than the set length may be configured on the front wall of the threshing device 3 on the side of the handle 3c.

The threshing operation state switching means A may be constructed as follows. As shown in FIG. 6 and FIG. 7, at the transfer position for the feed chain 12 from the vertical transfer device 11, the grain culm being delivered is forcibly pulled out and the whole culm is scraped into the handling port 3c of the threshing device 3 and transported. Crank type scraping device 2
7, the electromagnetic clutch 28 is provided in the transmission system for the crank type scraping device 27, and the handling depth adjusting electric motor 20 is driven to the deepest handling side. When the detection sensor 21 detects the absence of grain culm, the control device 23 controls the electromagnetic clutch 28 to switch from the disengaged state to the engaged state after a lapse of a predetermined transportation time. The culm may be thrown in so that the unprocessed residue does not occur. In this case, the threshing operation state switching means A is constituted by the crank type scraping device 27 and the electromagnetic clutch 28. As shown in FIG. 5, a disc cutter 2 for cutting the transport grain culm is provided at a position close to the feed chain 12 on the inner side of the handling chamber.
9 is provided by a slide mechanism 30 so as to be movable up and down, and when the above-mentioned short culm is detected, the disc cutter 2
The slide mechanism 30 may be controlled so that the grain culm is cut from the position where 9 is retracted downward to a cutting position where almost all culms are thrown into the handling chamber. Disk cutter 2
9 and the slide mechanism 30 constitute the threshing operation state switching means A.

It should be noted that reference numerals are added to the claims for facilitating the comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view of a front portion of a self-removing combine.

FIG. 2 is a side view showing threshing work state switching means.

FIG. 3 is a plan view of a pre-cutting processing unit.

FIG. 4 is a plan view of a culm length detection sensor mounting portion.

FIG. 5 is a cutaway front view of the disk cutter disposition part.

FIG. 6 is a side view of a crank type scraping device.

FIG. 7 is a front view of a crank type scraping device.

[Explanation of symbols]

 3 Thresher 9a, 9b, 9c Conveyor 12 Feed chain

Claims (1)

[Claims] 1. A plurality of transfer devices (9a), (9b), (9c) for individually transferring the grain culms mowed at the row-shaped mowing positions along the mowing width direction to the rear of each mowing strip. )
Are arranged in a substantially Y shape in a plan view, and the respective transport devices (9
a), (9b), (9c) transport grain culms are merged and delivered to the feed chain (12) in the threshing device (3) and transported to transport a multi-row combine grain culm transport structure, , The transfer devices (9a),
The transfer devices (9a), (9b), so that the harvested grain culms merged by (9b) and (9c) are merged together so that the grain culms harvested at substantially the same mowing timing are merged.
(9c) The multi-row cutting combine grain culm transport structure in which the length of each transport path and the drive speed are set.