JPS592246B2 - combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is configured to be able to change and adjust the conveyance speed of a rear conveyance device that clamps and conveys the cut husk culm in an upright position from the reaping section toward the feed chain of the threshing device. The present invention relates to a combine harvester in which the conveyance speed of the feed chain which is clamped and conveyed in a sideways posture is kept constant.

In the above combine harvester, when the conveyance speed of the rear conveyance device is changed and adjusted, a conveyance speed difference occurs at the transfer point from the end of the rear conveyance device to the start end of the feed chain, and the clamping posture of the cut husk is changed (vertical). (from a posture to a sideways posture), and there was a tendency for the culm to become disordered or fall off at this point of transfer, making it easy for mistakes to occur in the transfer.

In view of these circumstances, the present invention aims to eliminate mistakes in the delivery of culms in the above-mentioned configuration.

The present invention provides the above-mentioned combine harvester with an intermediate conveying device that transfers and transfers the cut husk in a sideways posture between the terminal end of the rear conveying device and the starting end of the feed chain, and also increases the conveying speed of this conveying device. It is characterized in that it is synchronized with the conveying speed of the rear conveying device.

That is, the shell culm from the rear conveyance device is delivered to an intermediate conveyance device whose speed is changed in synchronization with this conveyance device, and then from this intermediate conveyance device to a feed chain having a conveyance clamping surface running in approximately the same direction as this conveyance device. It will be delivered to the starting end.

In short, by positioning the part where a difference in transport speed occurs and the part where a difference in transport clamping posture occurs at intervals in the transport direction, both factors do not occur at the same time, and their synergistic effect is lost. As a result, it has become possible to significantly reduce delivery errors.

Next, to explain the embodiment of the present invention, first, the entire combine harvester will be explained.

(See Figures 1 and 2) A reaping section 5 in which a lifting device 3 and a cutting blade 4 are integrally provided is provided at the rear of the traveling vehicle body 2 on which the threshing device 1 is mounted. A rear conveyance device 6 is provided which holds the raised and cut culms in two stages, upper and lower, and conveys them rearward toward the threshing device 1 in an upright position, and the culms conveyed by the rear conveyance device 6 are transferred to an intermediate conveyor device. 7, the feed chain 8 of the threshing device 1 is placed in a sideways posture.
With this structure, the planted culm at the front of the machine is pulled up and harvested, carried backwards, changed to a sideways posture, and fed into the threshing device 1. After handling and threshing, the threshed grains are sorted by a sorting device (not shown) in the threshing device 1, and the grains are sent to the bagging device 9 installed in the lateral direction of the threshing device 1. The waste straw processing device 10 provided at the rear of the threshing device 1 performs the required processing.

The intermediate conveying device 7 has a conveying direction and a culm clamping surface set along the starting end of the feed chain 8 in both plan view and side view, and the starting end is set to the side of the terminal end of the rear conveying device 6. The end portion is placed close to the side of the starting end of the feed chain 8.

The rear conveying device 6 is configured to be able to swing and fix up and down centered below its terminal end, and the handling depth can be adjusted by raising and lowering its starting end.

(See FIG. 2) Next, the reaping section 5, the rear conveyance device 6,
The intermediate conveyance device 7, the traveling device 11, and the power transmission system to the feed chain 8 and the threshing device 1 will be explained.

(See Figure 3) From the engine 12 mounted on the traveling vehicle body 2 to the first and second
The transmission systems 13 and 14 are connected, the first transmission system 13 transmits power to the hydraulic continuously variable transmission 15, and the third continuously variable transmission 15 transmits power. 4th. Fifth and sixth transmission systems 16, 17,
18 and 19, to the traveling device 11 by a third transmission system 16, to the reaping device 5 by a fourth transmission system 17, and to the rear conveyance device 6 by a fifth transmission system 18,
Further, the configuration is such that power is transmitted to each of the intermediate conveyance devices 7 by a sixth transmission system 19.

With this configuration, the driving speed of the reaping section 5 and the conveying speed of the rear conveying device 6 and the intermediate conveying device 7 can be changed in synchronization with the traveling speed, and the fifth. The fixed speed ratios of the sixth transmission systems 18 and 19 are made the same, so that the conveyance speed (1) of the rear conveyance device 6 and the conveyance speed v2 of the intermediate conveyance device 7 are always substantially equal to each other.

The power is transmitted to the threshing device 1 through the second transmission system 14, and the power is transmitted from the threshing device 1 to the feed chain 8 via the seventh transmission system 20.

As shown in FIG. 4, the lifting device 3 rotates an endless chain 22 provided with pulling claws 21 that can be retracted and retracted inside a case 23. so that the raising claws 21 protrude from the part side,
A rail 24 for holding the lifting claws 21 upright is provided inside the case 23.

Continuing above the rail 24, a case 23
A second rail 25 is provided in the interior so as to be elastically movable in parallel, and as the load on the lifting pawl 21 increases, the second rail 25 is automatically moved backward, and the lifting pawl at the upper part of the lifting pawl is moved. The structure is such that the standing posture of 21 is almost like falling down.

In this way, there is no risk of forcibly combing out the entwined culms and causing breakage of the ears.

The second rail 25 is constructed so that it can be manually retracted from outside the case 23 via a release wire 26, thereby preventing the lifting claw 21 from squeezing the sugar part of the shell culm when pulling up the short culm. It is structured so that you can understand it.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the combine harvester according to the invention,
Fig. 1 is a side view showing the whole, Fig. 2 is a perspective view showing a part, Fig. 3 is a block diagram showing the power transmission system, and Fig. 4 is a partially cutaway front view showing the lifting device. . 1... Threshing device, reciprocal... reaping section, 6.
... Back conveyance device, 7 ... Intermediate conveyance device, 8 ... Feed chain.

Claims (1)

[Claims] 1 A rear conveyance device 6 that clamps and conveys the cut husk culm in an upright position from the reaping section 5 toward the feed chain 8 of the threshing device 1
The feed chain 8 is configured to be able to change and adjust the conveying speed (1) of
In a combine harvester in which the conveyance speed is kept constant, an intermediate conveyor device 7 is provided between the terminal end of the rear conveyor device 6 and the start end of the feed chain 8 to transfer and transfer the cut husk in a sideways posture. Conveying speed V of device 7
2 is synchronized with the conveying speed (1) of the rear conveying device 6.