JPH0238594Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grain culm guiding device for manual handling of a reaping and threshing machine.

Stranded grain culms in the field that cannot be treated with a cutting and harvesting machine such as a combine harvester are usually harvested by hand and then handled by hand. For this reason, reaping and harvesting machines are generally equipped with a grain culm guide device for manual handling.

However, with conventional grain culm guide devices for manual handling, the structure for switching between manual handling and automatic harvesting operations is still complicated, and automatic harvesting operations using a reaping/harvesting machine can be performed with the manual guide set in the handling position. When you do
The grain culm conveying device installed between the pre-processing section and the threshing section was clogged, making it impossible to harvest using a reaping machine.

In order to eliminate these drawbacks, for example,
137031 and Utility Model Publication No. 55-9094 have been proposed. The former type is equipped with an ear resistance rod that descends when hand-handled grain culm is placed on it and automatically returns upwards when manual feeding is finished; however, this ear-end resistance rod itself is a vertical conveyance device. It provides resistance to the tip side of the grain culm being conveyed by the feed chain, and is placed inside the feed chain and opposite to the feed chain, which is located above the pinch rail, increasing the height above the ground. On the other hand, there was a drawback that it became difficult to supply grain culms by hand.

In addition, the latter is a curved guide rail that is movable between a position facing the supply port of the threshing section and a position along the conveyance path of the stem conveyor, on the terminal end side of the guide rail installed opposite to the conveyance path of the stem conveyor. This curved guide rail itself guides the grain culm conveyed by the stalk conveyor to a position facing the supply port of the threshing section, and is arranged inside the feed chain. In addition, at the handling position, the grain culms are retracted to the upper side of the conveyance path, and the grain culms cannot be placed on the curved guide rail, making it difficult to supply the grain culms.

Therefore, in view of the conventional situation mentioned above, the present invention is
This product was developed to solve this problem, and makes effective use of the starting end of the threshing chain, which is located below the pinch rails, and has a low ground height and is easy to handle. The purpose of this project is to provide a culm guiding device.

In order to achieve the above-mentioned purpose, the present invention is such that the threshing chain installed below the pinching rail of the threshing section has a conveyance starting end protruding from the front and downward inclines, and the harvested grain culm from the pre-processing section is conveyed to the stock. In the reaping and harvesting machine that transfers the feed to the conveyance start end of the chain by a device, the terminal end side of the stock transfer device has a pivot point above the conveyance path of the conveyance device, and the guide portion is connected to the conveyance start end of the chain. A manual handling guide is provided that extends through the lateral outside to the threshing section side, and the guide is connected to an upper non-handling position where the conveyance end of the stock transfer device and the conveyance start end of the chain communicate with each other, and the above-mentioned It is characterized in that it is configured to be freely selectively switchable to a lower handling position that intersects the conveyance start end of the chain in a substantially horizontal direction and is movable upward.

The present invention will be explained below with reference to embodiments shown in the drawings.

In the combine shown in FIGS. 1 and 2,
10 is a pre-processing section, 20 is a threshing section, and 30 is a traveling section on which these are mounted.

The preprocessing section 10 has a divider 1 and a pulling device 2 at the front, a cutting blade 3 at the rear lower part, and an ear tip conveying chain 4 and a stock head conveying chain at the upper part for conveying the harvested grain culm. 5, and guide guides 6 and 7 paired with these. Further, an oil supply nozzle 11 is provided above the cutting blade 3 so that the cutting blade 3 can be lubricated by appropriately injecting lubricating oil. The preprocessing section 10 configured in this manner can be tilted up and down on the front side about the pivot shaft 13 as shown by the arrow by the action of the hydraulic cylinder 12.

The above-mentioned ear tip conveyance chain 4 and stock head conveyance chain 5 are connected to the conveyance starting end 8a of the threshing chain 8 provided on the lateral side of the threshing section 20 while sandwiching the grain culm between the guides 6 and 7. The conveyance start end 8a is arranged to protrude in an inclined manner from the lower front side of the threshing chain 8. The threshing chain 8 that has taken over the grain culm transports the grain while holding it between the pinching rails 9 installed above the threshing chain 8, and inserts the grain tip into the threshing section 20 to perform the threshing process. .

At the terminal end of the stock transfer chain 5, there is a grain culm for manual handling that can be switched between an upper non-handling position shown by a solid line and a handling position shown by a chain line, using a bracket 16 (described later) as a pivot point. A guide 14 is provided. The grain culm guide 14 extends from the pivot portion to a handling position in a substantially horizontal direction when viewed from the side, and extends rearward through the lateral outside of the threshing chain 8 provided in the threshing section 20 when viewed from the top. There is.

As shown in detail in FIGS. 3 and 4, the grain culm guide 14 has its proximal end rotatably supported on a bracket 16 on a mounting seat 15 fixed to the frame on the preprocessing section 10 side. , and is biased toward the threshing chain 8 side by a spring 17. Further, a plate 18 is welded to the base end of the grain culm guide 14, and a long hole 18a is bored in this plate 18.
A guide 19 protruding from the mounting seat 15 is fitted into the mounting seat 15. Washer 20 provided at the upper end of this guide 19
A spring 21 is interposed between the plate 18 and the grain culm guide 14, and the elastic force of the spring 21 constantly urges the grain culm guide 14 downward. Grain culm guide 14 urged downward in this way
As shown in FIG.
It can be freely selected between a non-handling position shown by a solid line, in which it is stopped by a stopper 22 having an L-shaped cross section fixed to the side surface, and a handling position, shown by a chain line, in which it is placed on a stopper 23.

Therefore, in the above-mentioned apparatus, when performing normal automatic threshing processing, if the grain culm guide 14 is locked to the stopper 22, the guide 14 is connected to the conveyance end side of the stock conveyor chain 5 and the threshing chain 8. As shown in FIGS. 5 and 6, the grain culm S communicates with the conveyance starting end 8a of the grain culm guide 14.
The threshing chain 8 is held between the pinching rails 9 while being guided under the threshing section 20, and the threshing process is carried out in the threshing section 20.

When handling the grain by hand, use the grain guide 14 mentioned above.
When removed from the stopper 22 and pushed laterally outward against the elastic force of the spring 17, the grain culm guide 1
4 is placed on the lower stopper 23 by the downward elastic force of the spring 21, as shown in FIG. By this switching, the grain culm guide 14 is moved to the threshing chain 8 which is inclined diagonally forward and downward in side view.
Since the handling position crosses the conveyance start end 8a in a substantially horizontal direction, the threshing chain 8 and the clamping guide plate are guided while the grain stalk S held in the hand is guided by the upper surface of the grain guide guide 14. 9, it is possible to reliably perform efficient threshing processing without causing the grain culm S to fall downward. Furthermore, since the grain culm guide 14 is located on the lateral outer side of the threshing chain 8, it also serves as a safety guard for the operator.

Furthermore, even if you forget to set the grain culm guide 14 to its original position and start the next automatic threshing process with the grain culm guide 14 in the handling position, the grain culm guide 14 will be It is automatically flipped upwards and does not interfere with automatic threshing work.

FIG. 8 shows a drive system of the oil nozzle 11 for the cutting blade 3 described above.

In this drive system, an oil tank 31, a pump 32,
Flexible pipes 34, 35 between the switching valve 33
are connected. The switching valve 33 is a knob 33a.
By rotating, it is possible to switch to the oil nozzle 11 for the cutting blade 3, switch to the oil nozzle 36 for the chain, and return the oil to the oil tank 31 via the flexible pipe 37. . pump 32
By swinging the operating lever 40 back and forth, the piston rod 32a is moved up and down to drive.

The part where the pipe 37 connects to the oil tank 31 is
As shown in FIG. 9, they are connected via a rubber stopper 38. This rubber stopper 38 has the same shape as a rubber stopper fitted into a lubrication stopper of a gear case such as a transmission. Therefore, this rubber stopper 38 can be attached to and removed from the oil filler port of the gear case as is.

Therefore, when it is desired to lubricate a gear case such as a transmission, for which lubrication work is generally troublesome, as shown in FIG. 38 and after switching the switching valve 33 to communicate with the pipe 37, if the pump 32 is driven by the operating lever 40, refueling can be performed extremely easily. In this case, as shown in FIG. 11, if a scale 41 is attached to the side of the oil tank 31 according to each object to be lubricated, such as a transmission or other gear case, more reliable lubricating will be possible. .

In short, the present invention is such that the threshing chain installed below the pinch rail of the threshing section is provided with a conveyance start end that is inclined forward and downward, and the harvested grain culm from the pre-processing section is conveyed by the stock conveying device. Even in the case of a reaping harvester that transfers to the conveyance start end of the chain, an inner guide is pivotally supported on the terminal end side of the stock conveyor and extends to the threshing section side through the lateral outside of the threshing chain conveyance start end. By switching to a lower handling position that intersects the conveyance start end of the threshing chain that slopes forward and downward in a substantially horizontal direction, the conveyance start end of the threshing chain that is located below the pinching rail and has a low ground height can be moved. By using this method effectively, the hand-handled grain culm can be placed on the guide in a substantially horizontal position, and thereby the hand-handled grain culm can be smoothly supplied to the threshing section.

Furthermore, by switching the manual handling guide to the upper non-handling position, the conveyance end of the stock transfer device and the conveyance start end of the chain are communicated.
At this position, automatic harvesting work using a reaping and harvesting machine can be performed in the same way as in the conventional method.

Furthermore, the manual handling guide in the handling position is provided so that it can be moved upward, so even if you forget to switch it and remain in the handling position, the harvested grain culm being conveyed over the conveyance start end of the threshing chain can be easily moved. Since the reaped grain culm is reliably prevented from clogging the conveyance start end of the threshing chain during harvesting work, its handling can be simplified.

Therefore, it is possible to provide a grain culm guide device for manual handling of a harvester that effectively utilizes the conveyance starting end of the threshing chain disposed below the pinch rail and has a low height above the ground and is easy to handle.

[Brief explanation of the drawing]

Fig. 1 is a side view of the main parts of a combine equipped with the manual grain guide device according to the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a side view of the main parts of the device, and Fig. 4 is Fig. 3 is a view taken in the direction of the arrows, Fig. 5 is a side view when the same device is set in the automatic threshing position, Fig. 6 is a sectional view taken from Fig. 5, and Fig. 7 is a side view when the same device is set in the manual threshing position. Fig. 8 is a schematic diagram showing the drive system of the lubrication mechanism, Fig. 9 is an enlarged side view partially shown in section in the direction of the arrow in Fig. 8, and Fig. 10 is the above lubrication mechanism. FIG. 11 is a perspective view showing a state in which the oil filler plug of the mechanism is set in the transmission, and FIG. 11 is a side view of the oil tank. DESCRIPTION OF SYMBOLS 10... Preprocessing part, 20... Threshing part, 8... Threshing chain, 14... Grain culm guide, 15... Mounting seat, 16... Bracket, 21... Spring, 22, 23... Stopper.

Claims (1)

[Scope of utility model registration request] The threshing chain, which is disposed opposite to the lower part of the threshing rail, is provided with a forward and downwardly inclined conveyance start end, and the harvested grain culm from the pre-processing section is transferred to the conveyance start end of the chain by the stock conveyor. In the reaping/harvesting machine for conveying grains, the terminal end side of the stock conveying device has a pivot point above the conveyance path of the conveyance device, and a guide portion extends toward the threshing section side through the lateral outside of the conveyance starting end. A manual handling guide is provided, and the guide is placed at an upper non-handling position where the conveyance end of the stock transfer device communicates with the conveyance start end of the chain, and in a substantially horizontal direction with the conveyance start end of the chain. A grain culm guide device for manual handling of a reaping/harvesting machine, which is configured to have a lower handling position that can be crossed and moved upward, and can be selectively switched.