JPH0142431Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grain culm conveying device that supplies the grain culm harvested by the grain culm reaping part to the threshing part in a combine harvester.

Conventionally, a grain culm reaping section is provided at the front of the machine, and a threshing section is provided at the rear of the grain culm reaping section, and a grain culm conveying body is provided in the grain culm reaping section for holding and transporting the harvested grain culm and supplying it to the threshing feed chain of the threshing section. In conventional combine harvesters, when the movement of the machine is stopped, the operation of the grain culm reaping part is also stopped at the same time, and in order to eliminate inconveniences such as scraping uncut grain culms in a group of standing grain culms, the grain culm reaping part is The system is configured to interlock the on/off of power to the drive clutch with the on/off of the driving clutch.

However, in the combine with the above configuration,
When the traveling clutch is cut off, the grain conveying body in the grain culm reaping section stops, but the grain culm feed chain in the threshing section continues to rotate. At the joining part, the grain culm stock base held by the stopped grain culm conveyor is forcibly drawn in by the threshing feed chain, causing damage to the grain culm and disturbance in subsequent grain culm transportation. This was unacceptable and resulted in inconveniences such as unhandled grains resulting in loss of grain.

The purpose of the present invention is to solve the above-mentioned inconveniences, and the purpose of the present invention is to provide a grain culm transporter at the grain joint section between the grain transporter of the grain culm reaping section and the grain culm feed chain of the threshing section. A grain culm pushing up rotating body that pushes up the grain culm stock base clamped at the end of the conveyance is provided, and this grain culm pushing up rotating body is connected to a traveling clutch, and when the clutch is "disconnected", the grain culm is pulled in by the feed chain. By configuring it to stop, when the traveling clutch is disengaged and the grain culm reaping section is stopped,
At the grain joint joint between the grain culm conveyor and the threshing feed chain, the stock base of the grain culm held between the grain culm conveyors is pushed up in a direction away from the threshing feed chain by the grain culm push-up rotating body, and the grain culm is removed. The grain culm is prevented from being drawn into the threshing feed chain when the reaping section is stopped, and damage to the grain culm and grain loss are not caused, and when the grain culm reaping operation is started,
It is an object of the present invention to provide a grain culm conveying device for a combine harvester that can always maintain a proper grain culm conveying posture.

The structure of the present invention will be described with reference to the embodiment shown in the drawings. 1 is a grain culm reaping part, 2 is a threshing part, the grain culm reaping part 1 is provided at the front part of the machine body, and the threshing part 2 is It is located behind it. Reference numeral 3 denotes a grain culm conveyor in the grain culm reaping section 1; 4 is a threshing feed chain in the threshing section 2; the grain culm conveyor 3 is for supplying the harvested grain culm to the threshing feed chain 4; is facing the starting end of the threshing feed chain 4. Reference numeral 5 denotes an ear conveyor for harvested grain culms. Reference numeral 6 denotes a grain culm guide, and this grain culm guide 6 is located at the grain culm joining part between the grain culm carrier 3 and the threshing feed chain 4, and its base end is connected to the grain culm carrier 3. is fixed. Reference numeral 7 denotes a grain culm pushing-up rotary body, which is located at the joining part between the grain culm conveying body 3 and the threshing feed chain 4, and is rotatable by a pivot shaft 8. It is pivotally supported. When the grain culm push-up rotary body 7 is rotated upward, it extends upward from the starting end of the threshing feed chain 4, pushes up the grain culm stock base held between the conveying end of the grain culm conveyor 3, and moves downward. When it is rotated, it falls downward from the starting end of the threshing feed chain 4. Reference numeral 9 is a clutch pedal of a running clutch, and the grain culm pushing up rotating body 7 is connected to the clutch pedal 9 by an interlocking wire 10, and the grain culm pushing up rotating body 7 is connected to the clutch pedal 9 by a tension spring 11. It is attracted to rotate downward. The grain culm pushing rotating body 7 is rotated upward when the clutch pedal 9 is depressed to disengage the traveling clutch, and rotated downward when the clutch pedal 9 is released.

As shown in FIG. 3, the grain culm pushing-up rotating bodies 7 may be arranged to sandwich the starting end of the threshing feed chain 4 and correspond to both sides thereof. Note that the power to the grain culm reaping section 1 is configured to be cut off at the same time as the traveling clutch is cut off. Another embodiment is shown in FIGS. 4 and 5, in which the grain culm pushing-up rotating body 7 is constituted by an elastic body 7a that acts in the direction of pushing up the grain culm. 7b
is a mounting bracket thereof, and this mounting bracket 7b is rotatably supported by a pivot shaft 8.

In the structure configured as described above, when the machine is running and harvesting work, the grain culm cut by the grain culm reaping section 1 is transported by the grain culm conveyor 3, and the grain culm is transported by the grain culm conveyor 3, It is inherited and threshed. When the running clutch is disengaged to stop the machine from moving during harvesting, the grain culm reaping section 1 is also stopped at the same time. At this time, when the traveling clutch 9 is depressed and released, the grain culm pushing rotating body 7, which is interlocked with the clutch pedal 9, rotates upward, extends above the starting end of the threshing feed chain, and transports the grain culm. Since the stock base of the grain culm held between the conveyance terminal ends of the grain culm conveyor 3 is pushed up, the chain plate at the starting end of the threshing feed chain 4 acts on the grain stalk stock base at the conveyance end of the grain culm transport body 3. It disappears. For this reason, when the operation of the grain culm reaping section 1 is stopped, all the grain culms inherited by the threshing feed chain 4 are supplied to the threshing section 2, and the grain culms held between the conveying end portions of the grain culm conveying body 3 are The stock head part is not forcibly drawn into the threshing feed chain 4, the grain culm is not damaged or the grain culm posture is disturbed, and there is no loss of grain due to unhandled grain. Then, when the machine is run and reaping work is resumed, the grain culm push-up rotating body 7 rotates downward, and the grain culm, which is held in a stable posture by the grain culm carrier 3, is transferred to the threshing feed chain 4. Therefore, the proper grain culm conveying posture can be maintained at all times, and the threshing work can be carried out smoothly.

In the other embodiments shown in FIGS. 4 and 5, the grain culm pushing-up rotating body 7 is constituted by an elastic body 7a, so that the grain culm pushing-up rotating body Is it possible that the pushing up action of 7 is not unreasonable?
The load on the clutch pedal 9 can be alleviated.

In short, the present invention has a grain culm reaping section at the front of the machine body, and a threshing section at the rear thereof, and the grain culm reaping section clamps and conveys the harvested grain culms to feed the grain to the threshing feed chain of the threshing section. In a combine harvester provided with a culm conveyor, a grain culm push-up circuit for pushing up a grain culm stock base sandwiched between the conveyance end portion of the grain culm conveyor at a grain culm joint portion between the grain culm conveyor and the threshing feed chain; A movable body is provided, and this grain culm pushing up rotating body is connected to the traveling clutch to stop the retraction of the grain culm held by the grain culm conveying body by the threshing feed chain when the clutch is "disconnected". When the grain culm reaping unit is stopped by cutting the grain culm, only the grain culm that is held between the conveying end portion of the grain culm conveying body is pushed up at the grain culm joining part between the grain culm conveying body and the threshing feed chain. By pushing up the grain culm in the direction of separating it from the threshing feed chain with the rotating body, it is possible to prevent the grain culm from being drawn into the threshing feed chain when the grain culm reaping part is stopped, resulting in damage to the grain culm and disruption to subsequent grain culm transportation. There is no risk of grain loss due to unhandled grains. Moreover, when reaping work is restarted, the grain culm, which is held in a stable position by the grain culm conveyor, is transferred to the threshing feed chain, so that the appropriate grain culm conveying position can always be maintained, and the threshing operation can be carried out smoothly. This has extremely useful practical effects, such as the ability to

[Brief explanation of the drawing]

The drawings show an embodiment of the grain culm conveying device in a combine harvester according to the present invention, in which FIG. 1 is a side view showing a part of the combine, FIG. 2 is a longitudinal sectional front view of a part, and FIG. FIG. 4 and FIG. 5 are a partial side view and a partial vertical front view of a combine harvester according to still another embodiment. In the figure, 1 is a grain culm reaping part, 2 is a threshing part, 3 is a grain culm conveyor, 4 is a threshing feed chain, 5 is a grain conveyor, 6 is a grain culm guide, 7 is a grain culm push-up rotating body, 9
1 is a clutch pedal of a traveling clutch, 10 is an interlocking wire, 11 is a tension spring, 7a is an elastic body, and 7b is a bracket.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A grain culm reaping section is provided at the front of the machine, and a threshing section is provided behind it. In a combine harvester equipped with a grain culm transporter for supplying grain to the grain culm transporter, the grain culm joint part between the grain culm transporter and the threshing feed chain is used to push up the grain culm stock base held at the transport end of the grain culm transporter. A grain culm pushing up rotating body is provided, and this grain culm pushing up rotating body is connected to a traveling clutch to stop the drawing of the grain culm held by the grain culm conveying body by the threshing feed chain when the clutch is "disconnected". A grain culm conveying device in a combine harvester, characterized in that: (2) The grain culm pushing-up rotary body provided at the joint between the grain culm conveying body of the grain culm reaping section and the threshing feed chain of the threshing section is composed of an elastic body that acts in the direction of pushing up the grain culm. A grain culm conveying device in a combine harvester according to claim 1 of the utility model registration claim.