JP2595131B2 - Threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention conveys a harvested stem from the inlet to the discharge port of the culm in a state where the stem side of the culm is clamped and the tip side is inserted into the cradle. The present invention relates to a threshing apparatus provided with a holding and conveying means.

[Conventional technology]

The above-described threshing apparatus is mainly used for threshing rice. In general, while holding and conveying the root side of a grain culm by a nipping and conveying means such as a feed chain, threshing is performed on the tip side by a handling cylinder. Then, the culm whose threshing has been threshed is discharged from the discharge port by the pinching and conveying means.

[Problems to be solved by the invention]

In the above prior art, the above-described threshing apparatus cannot be used for threshing crops other than rice, for example, sunflowers.

In other words, since sunflower seeds are strongly attached to the stem, the seeds may not be sufficiently shed from the stem by simply hitting the handle, and the stem with seeds is discharged from the outlet as it is. There was a risk of

An object of the present invention is to solve the above-mentioned conventional drawbacks and to obtain a threshing apparatus capable of appropriately threshing and recovering both crops having a high shedding property such as rice and crops having a low shedding property such as sunflower.

[Means for solving the problem]

A feature of the present invention is a threshing device provided with clamping and conveying means for clamping the stem side of a cutting stem and carrying the spike end side from the inlet to the discharge port with the spike side inserted into the handling chamber. The downstream portion of the holding / conveying means on the downstream side in the conveying direction is configured to be freely switchable between a conveying state for nipping and transporting the cutting stem and a conveying releasing state for releasing the nipping conveyance.
The open / close cover that opens and closes the discharge port is opened when the downstream portion is switched to the transport state, and is closed when the downstream portion is switched to the transport release state. It is linked to the department.

(Operation)

 The operation in the above-mentioned characteristic configuration is as follows.

For example, when threshing a crop such as sunflower that does not have good threshing properties, the downstream side is set in the transport release state, so that the tip side of the crop sent into the handling room by the pinching transport means is:
It is conveyed to the downstream side while being hit by the handling cylinder.
Then, when reaching the downstream part, the whole stems and stems are collected in the handling room, so that the grains that have not been shed are also collected in the handling room, and are further subjected to threshing in the handling room or the second processing section. .
Further, when the downstream portion is switched to the transport release state, the cover for opening and closing the discharge port is automatically opened, so that the discharge of the processed material in the handling room from the discharge port is prevented, and the inside of the handling room is sufficiently prevented. It will be handled and processed.

On the other hand, when threshing crops with good shedding properties such as rice,
By setting the downstream portion in the transporting state, the tip side of the crop sent into the handling room by the holding and transporting means is transported to the downstream side while being hit by the handling cylinder, and is discharged by the downstream holding and transporting force. It will be discharged from the exit.

〔The invention's effect〕

Therefore, a threshing apparatus capable of appropriately threshing and recovering both crops having a high degree of shedding such as rice and crops having a low degree of shedding such as sunflower was rationally constructed.

〔Example〕

Hereinafter, an embodiment in which the present invention is applied to a harvester will be described with reference to the drawings.

As shown in FIG. 4, an engine room (3) for accommodating the engine (E) is provided at an upper rear portion of a body frame (2) having a crawler traveling device (1), and a threshing device (4) is provided at an upper front portion. ) Is mounted, thus constituting a harvester.

The threshing device (4) includes a handling room (A) for accommodating a handling cylinder (5) that threshes the cut stems, and a handling room (A) for holding the stem side of the cut stems and holding the spike tip side. Nipping and transporting means (8) for transporting from the inlet (6) of the handling chamber (A) to the discharge port (7) in a state of being inserted into the chamber, and a sorting device for sorting and processing the leaked material from the handling chamber (A). (B).

As shown in FIGS. 1 and 2, the nipping and conveying means (8)
Is the feed chain (8A), (8B) and the clamping rail (8
C). Feed chain (8A), (8
B) includes an upstream portion (8A) on the upstream side in the transport direction and a downstream portion (8B) on the downstream side. The downstream portion (8B) is configured to be freely switchable between a transport state in which the cutting stems are pinched and transported and a transport release state in which the pinch transport is released. In other words, the drive shaft (10) of the sprocket (9) at the end of the upstream portion (8A) is attached to the downstream portion (8A).
The drive sprocket (11) of B) is fitted around the sprocket (9) so as to rotate integrally with the sprocket (9).
The boss portion (13) of the support frame (12) in (B) is fitted around the outside freely so as to freely rotate. A driven sprocket (14) is supported on the other end of the support frame (12). When a fixing member (17) is attached to the main body of the threshing device (4), and the holding / conveying means (8) is set in the conveying state, the fixing member (1) is used.
What is necessary is just to lock the support frame (12) to 7) with the bolt (18). Further, by releasing the lock by the bolt (18), the transport release state can be set.

Further, an arm (16) swinging integrally with the boss (13) is provided, and the arm (16) is linked to an opening / closing cover (20) for opening and closing the discharge port (17) by a release wire (21). ing. That is, as the open / close cover (20) switches the downstream portion (8B) to the transport state,
The downstream portion (8B) is linked to the downstream portion (8B) so as to be closed when the downstream portion (8B) is switched to the transport release state.

In the drawing, reference numeral (22) denotes a spring for urging the opening / closing cover (20) to return to the closed side.

The sorting device (B) is, as shown in FIGS. 3 and 4,
A cross flow fan (24) that blows the sorting wind, an oscillating sorting plate (25), the first thing collection part (27), and the second thing collection part (28)
And

Further, the sorting section (B) and the engine room (3) are communicated through the opening (26), and the cross flow fan (24) blows air while sucking air in the engine room (3). ing.

The engine room (3) is provided with a guide plate (30) for forming a cooling air path for guiding external air to the cross flow fan (24) as shown in FIG. In the drawing, (31) is a muffler, which is provided in the cooling air path.

(Another embodiment)

In the above embodiment, the downstream portion (8B) of the feed chain is switched between the transport state and the transport release state.
The holding rail (8C) may be switched.

In the above embodiment, the case where the present invention is applied to the harvester has been described, but the present invention can also be applied to a combine or the like.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a threshing apparatus according to the present invention. FIG. 1 is a side view of a main part of a holding / conveying means and a discharge port, FIG. 2 is a plan view of a main part of a holding / conveying means, and FIG. FIG. 4 is a schematic side view of the bar vester. (6) ... inlet, (7) ... outlet, (8) ... nipping and conveying means, (8B) ... downstream, (20) ... opening and closing cover,
(A) ... The handling room.

Claims (1)

(57) [Claims] 1. An inlet (6) for the handling chamber (A) with the spike side inserted into the handling chamber (A) while clamping the stem side of the cutting stem.
Threshing device provided with a pinching and conveying means (8) for conveying from the feeding port to a discharge port (7), wherein a downstream portion (8B) of the pinching and conveying means (8) on the downstream side in the conveying direction pinches the cutting stem. The discharge port (7) is configured to be switchable between a transport state for transport and a transport release state for releasing the nipping transport.
The open / close cover (20) that opens and closes the open state when the downstream portion (8B) is switched to the transport state and the closed state when the downstream portion (8B) is switched to the transport release state. A threshing device associated with the downstream section (8B).