JPH0631866Y2 - Threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a threshing device, and more particularly, to a structure of an arcuate receiving net arranged along the lower side of a handling cylinder.

[Conventional technology]

In the threshing device, many grain culms are vigorously threshed between the handling cylinder and the net, so that single-grained grains and small straw debris inevitably become clogged with the net. There is. Therefore, in recent years, it has been proposed to forcibly vibrate the receiving net along the circumferential direction of the handling cylinder to minimize clogging of the receiving net.

[Problems to be solved by the device]

As a structure for vibrating and driving the receiving net, a guide is provided on the side of the handling chamber, and the guide is used to guide the receiving net so as to be movable in the circumferential direction of the handling cylinder, and to swing around the horizontal axis on the upper back surface of the receiving net. A structure in which a driving arm that is dynamically driven is provided and the driving arm is connected to the upper back surface of the receiving net is conceivable.

With the above structure, the net is vibrated and driven along the guide by the swing of the drive arm.However, when the net is pulled out of the handling chamber, the drive arm and net should be connected. If you remove your hand from the net when you remove it, the net will fall down along the guide. In such a case, it is necessary to insert a hand into the handling room from above and take out the receiving net that has fallen down, which is a troublesome work.

The present invention has been made in view of the above problems, and provides a simple structure in which the receiving net does not drop downward when the drive arm and the receiving net are disconnected. It is an object.

[Means for Solving the Problems]

A feature of the present invention is that the threshing device as described above is configured as follows. In other words, the receiving net, which is arranged along the lower side of the handling cylinder, is movably supported and guided through the guide along the circumferential direction of the handling cylinder, and is vertically rocked around the horizontal axis near the upper back surface of the receiving net. A driving arm that is driven dynamically is provided, and an engaging member that can be moved back and forth is provided on one of the driving arm or the net, and a pair of locking members is received on the other of the driving arm or the net. By arranging them at intervals along the moving direction and inserting the engaging member between both locking members, the receiving net can be vibrated and driven along the guide via the drive arm, and the pair of As the size of the locking member is different,
When the engaging member is pulled out from between the two engaging members, the engaging member contacts the larger engaging member to prevent the net from falling down. The actions and effects are as follows.

[Action]

In the structure described above, for example, as shown in FIGS. 1 and 2, an engaging member (23) that can be operated to move in and out is provided on the receiving net (4) side, and locking members (17a), (17b) If it is provided on the drive arm (17) side, the lower locking member (17b) of both locking members (17a) and (17b) may be enlarged.

As a result, when the engaging member (23) is inserted between the locking members (17a) and (17b) as shown in the left portion of FIG. 1, the drive arm (17) and the receiving net (4) are separated from each other. In the connected state, the drive arm (17) vibrates and drives the receiving net (4).

Conversely, even if the engaging member (23) is pulled out from between the locking members (17a) and (17b) as shown in the right portion of FIG. 1, the engaging member (23)
Is in contact with the lower locking member (17b).
Therefore, the receiving net (4) can be pulled out upward, and the receiving net (4) is supported by the engaging member (23) on the receiving net (4) side and supported by the lower locking member (17b). It doesn't fall down.

[Effects of the Invention] As described above, in a threshing device equipped with a drive arm that vibrates and drives the net in the circumferential direction of the handling cylinder, when the drive arm and the net are disconnected from each other, remove the hand from the net. Even if the receiving net is supported by a hand so that the receiving net does not fall downward, unlike the conventional structure, the connecting structure is always supported by hand so that the receiving net does not fall downward. It became possible to easily pull out the receiving net from the handling room without performing a troublesome thing such as disconnecting the connection with and, and it was possible to improve the workability of the threshing device.

〔Example〕

Hereinafter, a threshing device which is an embodiment of the present invention will be described with reference to the drawings.

The whole threshing device is configured as follows.

That is, as shown in FIG. 5, the grain culms that have been conveyed while being held in a sideways posture by the feed chain (1) are hung horizontally in the handling chamber (2) in the threshing device (3). ) Thresh between the handling cylinder (3) and the net (4). Threshed rice and relatively small straw debris are placed on the lower side of the handling cylinder (3).
(4) leaks, falls on the Glen Pan (6) installed on the lower swing selection frame (5), and is fed by the swinging action to the lower-side Glen Sieve (7) with specific gravity selection. On the Glensieve (7), the paddy is leaked and collected in the No. 1 waste collecting section (9) by the swinging action and the blowing action from the Kara (8). Then, the unhulled rice with branches collected in the No. 2 material collecting section (10) is rocked and sorted by a throwing-type thrower (not shown) (5)
It is returned to the top.

As shown in FIG. 4, the receiving net (4) is made by connecting a metal-made arcuate receiving frame (11) with a net (12) integrally molded with a resin material such as ultra high molecular weight polyethylene by bolts. It has a unique structure, and rollers are installed at multiple locations on the left and right of the net frame (11).
(13) is installed.

On the other hand, guides (15) having an L-shaped cross section are fixed to the left and right side walls (14) of the handling room (2) as shown in FIGS. Insert the roller from above the handling room (2)
By placing (13) on the guide (15), the receiving net (4) can be moved along the circumferential direction of the handling cylinder (3).
Further, the guide (15) is provided with a pressing member (16) for suppressing the floating of the receiving net (4).

Next, the structure for forcibly vibrating the receiving net (4) along the guide (15) will be described in detail. As shown in FIGS. 1 and 2, the horizontal axis center near the upper back surface of the receiving net (4). A drive arm (17) is swingably supported around (P ₁ ). On the other hand, the eccentric cam (1) is attached to the drive shaft (18) provided below the drive arm (17).
9) is fixed, and the linking arm (20) externally fitted to the eccentric cam (19) via a bearing is connected to the drive arm (17). With the above structure, the drive shaft
When the (18) is driven to rotate, the drive arm (17) swings up and down around the horizontal axis (P ₁ ) via the linkage arm (20), and the drive arm (17) receives the net (4). The net (4) is oscillated and driven along the guide (15) by connecting to the upper back surface of ().

Next, the connection structure between the drive arm (17) and the receiving net (4) will be described in detail. As shown in FIGS.
On the upper back surface of (4), an engaging pin as an engaging member (23) is supported by a first bracket (21) and a second bracket (22) so as to be capable of retracting in the axial direction, and a spring ( The engaging pin (23) is urged by 24) in a direction projecting outward. A bearing (25) is attached to the tip of the engagement pin (23).

On the other hand, as shown in the figures, the plate-like first locking member (17a) is fixed to the upper end of the drive arm (17) and the first locking member (17a) is fixed to the lower side. The longer second locking member (17b) is fixed. With the above structure, as shown in the left portion of FIG. 1, the left and right engaging pins (23) are projected so that both bearings (25) are attached to the first and second locking members (17a), (17).
The state of being inserted between b), the drive arm (17) and the net
It is in a state of being connected to (4), and the receiving net (4) is vibrated and driven along the guide (15) by the drive arm (17).

Then, as shown in the right part of FIG. 1, the gripping portion (23a) of the engaging pin (23) is mounted on the first bracket (21), and both engaging pins (23) are rotated inward. When retracted, the bearing (25) is disengaged from the upper first locking member (17a) but rests on the lower second locking member (17b). As a result, the receiving net (4) can be pulled out upward, but it cannot be dropped downward.

Further, as shown in FIG. 3, the drive arm (17) has a linkage arm.
A plurality of connecting holes (17c) for (20) are provided, and the connecting position of the linking arm (20) to the drive arm (17) is changed,
The swing angle of the drive arm (17), that is, the vibration stroke of the net (4) can be changed. Generally, when the grain culm to be threshed is wet, the connecting point of the linking arm (20) is brought closer to the horizontal axis (P ₁ ) side so that the vibration stroke of the receiving net (4) is made large.

Further, as shown in FIG. 1, the arm (26) is swingably supported around the horizontal axis (P ₂ ) of the side wall (14), and the drive shaft (18) is attached to the end of the arm (26). The crank arm (18a) is engaged and the balance weight (27) is fixed to the arm (26). As a result, the arm (26) swings in the direction opposite to the drive arm (17), and the vibration is reduced.

[Another embodiment]

In the above-mentioned embodiment, the engaging pin (23) is provided on the side of the receiving net (4) and
The second locking members (17a) and (17b) are provided on the drive arm (17) side, but this relationship is reversed and the engagement pin (23) is provided on the drive arm.
It is attached to (17) so that it can be moved in and out freely, and the first and second
The locking members (17a) and (17b) may be attached to the receiving net (4) side. In this case, the upper first locking member (17a) may be made larger than the lower second locking member (17b).

Further, although the engagement pin (23) is attached to the drive arm (17), it may be attached so as to be able to move out and out along the longitudinal direction of the drive arm (17).

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a threshing device according to the present invention. Fig. 1 is a rear view showing a drive structure of a receiving net and a connecting structure of a drive arm and a receiving net. Fig. 2 is a vertical side view of a handling chamber. FIG. 3 is a side view of the drive arm, FIG. 4 is a perspective view showing a guide structure in the net and the handling chamber, and FIG. 5 is an overall front view of the threshing device. (3) …… Handle, (4) …… Receive net, (15) …… Guide, (17) ……
Drive arm, (17a), (17b) ... locking member, (23) ... engaging member.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Susumu Onishi 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Works (72) Yoshitada Nakamura 64, Ishizukitacho, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd. Inside the Sakai Works (72) Inventor Masaru Ando 64 Ishizukita-cho, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd. Inside the Sakai Works

Claims (1)

[Scope of utility model registration request] 1. A receiving net (4) arranged along the lower side of the handling cylinder (3).
Movably supports and guides along the circumferential direction of the handling cylinder (3) via the guide (15), and the horizontal axis core near the upper back surface of the receiving net (4).
(P ₁ ) is provided with a drive arm (17) that is vertically swingably driven, and an engaging member (23) that can be operated to move in and out is provided with the drive arm (17).
Alternatively, a pair of locking members (17
a) and (17b) are arranged on the other of the drive arm (17) or the net (4) at intervals along the direction of movement of the net, and both locking members
By inserting the engagement member (23) between (17a) and (17b), the receiving net (4) can be oscillated and driven along the guide (15) via the drive arm (17), and The pair of locking members (1
7a) and (17b) having different sizes, the engaging member (23)
When the locking member (23a) is removed from between the locking members (17a) and (17b), the engaging member (23) contacts the larger locking member (17b) and the net (4) falls downward. A threshing device that is designed to be blocked.