JPS5822503Y2 - threshing equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a threshing device, and more particularly to an improvement in the drive structure of a feed chain.

In order to drive the feed chain, it has conventionally been configured to be driven at its terminal end, from the drive shaft derived from the mission case located at the front of the threshing device to the drive sprocket at the end of the feed chain. B1 threshing requires a complete transmission structure over a long path and has the disadvantage of complicating the drive structure of the feed chain, and this mission case is used to transmit power for threshing, waste straw processing, etc. Because the power is transmitted from the device's power system, the output from it is very high speed and cannot be transmitted directly to the feed chain, which has a low rotation speed, and a separate reduction gear is required, making the drive structure more complicated. It had some drawbacks.

In view of the above-mentioned points, the present invention simplifies the drive structure by driving the feed chain at the starting end side, and also easily obtains the low-speed rotation required for the feed chain without using a special speed reduction device. The purpose is to do so.

Next, embodiments of the present invention will be described in detail with reference to the drawings.

A lifting device 1 that pulls up the planted culms in the field, a reaping device 2 that reaps the raised culms, and a reaping device 2 that reaps the raised culms.While conveying the cut culms to the rear of the machine, the attitude is changed to a nearly horizontal position and delivered to the feed chain 3. A traveling machine platform equipped with a crawler traveling device 6, a vertical conveying device 4, a threshing device 5 for threshing and sorting grains while clamping and conveying the husks with a feed chain 3, and a control section 1. The combine harvester is constructed so as to continuously harvest and process the planted culms in the field while traveling.

The feed chain 3 has left and right traveling devices 6 in plan view.
.

The feed chain 3 has a starting end extending forward and downward, and the starting end is wound around a drive sprocket 11 mounted on a drive shaft 10 led out from a traveling mission case 9 disposed below the front of the threshing device 5. Idle sprocket 12, which is provided with the rear end side spaced apart toward the rear of the aircraft as it rotates.
The structure is such that the feed chain 3 is tensioned by a tensioning sprocket 13 provided near the drive sprocket 11 to absorb slack.

Further, as shown in FIGS. 2 and 3, drive shafts 9a and 5Sak protrude from the lower part of the transmission case 9 to the left and right, respectively, and wheel bodies 6a and 6a for crawler driving are mounted on the shafts, respectively. The front end side of the crawler traveling device 6 is wound around these wheels 6a, 6a.

The tensioning sprocket 13 is mounted on a tension arm 14 which is rotatably attached to the tension case 9 around an axis parallel to the drive shaft 10, and a spring 15 is attached to the tension arm 14. The tensioning sprocket 13 attached thereto is configured to constantly bias the feed chain 3 toward the side where it is to be tensioned.

Note that to tension the feed chain 3, it is not limited to the sprocket 13, but a pulley-like wheel may also be used, which is collectively referred to as the wheel 13.

In summary, the threshing device according to the present invention includes a traveling mission case 9 disposed below the front of the threshing device 5 mounted on a traveling machine base, and a drive sprocket 11 mounted on the drive shaft 10 led out from the traveling mission case 9. The starting end side of the feed chain 3 which clamps and conveys the threshing husk culm is extended forward and downward, and the starting end side is connected to the driving sprocket 11.
It is characterized by being wound around.

In addition, the traveling transmission obtains a large deceleration, and the number of revolutions taken out is about the same as the number of revolutions of the feed chain 3, so there is no need to provide a separate deceleration device as in the conventional structure. It has the advantage that an ideal rotation speed can be obtained with a simple transmission structure.

Moreover, the transmission structure that can obtain this ideal rotation speed for the feed chain is such that a drive sprocket 11 is mounted on a drive shaft 10 derived from a traveling mission case disposed below the front of the thresher 5, and this drive sprocket Since the starting end of the feed chain 3 is extended downwardly and wound around the feed chain 11, the conventional transmission structure from the drive shaft 10 to the sprocket 11 can be eliminated, and the drive structure of the feed chain 3 can be changed. This has the advantage of further simplification.

[Brief explanation of drawings]

The drawings show an embodiment of the threshing device according to the present invention, and FIG. 1 is an overall side view of the combine, FIG. 2 is a plan view of the main parts, and FIG.
The figure is a side view of the main part, and FIG. 4 is a view taken along the tv-tv line in FIG. 3. 3...Feed chain, 9...Traveling transmission case, 10...Drive shaft, 11...
... Drive sprocket, 13 ... Tension wheel.

Claims (1)

[Scope of utility model registration request] A traveling mission case 9 is disposed below the front of the thresher 5 mounted on the traveling machine base, and a drive sprocket 11 is attached to a drive shaft 10 led out from the traveling mission case 9.
Feed chain 3 that holds and conveys the threshing husk
A threshing device characterized in that a starting end side of the threshing device extends forward and downward, and the starting end side is wound around the driving sprocket 11.