JPH0628997Y2 - Threshing equipment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a support structure for a net in a threshing device mounted on a combine or a harvester.

[Conventional technology]

The receiving net of the threshing device is an arc-shaped one that is arranged along the lower side of the rotating handling barrel, and the grains that have been threshed between the receiving net and the handling barrel become single-grained grains. It leaks.

In this case, the receiving net is generally fixed in the handling room during the threshing operation.

[Problems to be solved by the device]

In the threshing device, many grain culms are vigorously threshed between the handling barrel and the net, so single-grained grains and small straw debris are apt to clog the eyes of the net, which causes threshing. This may lead to a decrease in efficiency and grain collection efficiency.

The present invention aims at minimizing clogging of the net during threshing work.

[Means for Solving the Problems]

A feature of the present invention is that the threshing apparatus as described above is configured as follows.

A plurality of straw cutting blades connected and fixed to the fixing part are arranged so as to project into the handling chamber, and an arcuate receiving net placed along the lower side of the handling barrel is arranged in the circumferential direction of the handling barrel. In addition to being equipped with a net-mesh vibrating mechanism that forcibly vibrates along the set stroke, the end of the net will enter between the straw-cutting blades and vibrate due to the forced vibration of the net-mesh vibrating mechanism at the fixed installation location of the straw-cutting blades. The setting stroke of the receiving network is set at.

[Action]

(I) When the net is forcedly oscillated along the circumferential direction of the handling cylinder as in the present invention, the so-called shaking effect causes grains and small straw chips clogging the eyes of the net to move downward. Fall down.

(Ii) Then, as shown in FIGS. 1, 2, and 5, for example, by forced vibration of the net-mesh vibrating mechanism (17), the end (11a) of the net (4) is placed between the straw cutting blades (27a). Since it enters and vibrates together with the receiving net (4), even if dust such as straw is about to accumulate between the straw cutting blades (27a), the vibration of the end (11a) of the receiving net (4) causes the straw cutting blades ( 27a)
The straw chips and the like between them are dropped.

[Effect of device]

As described above, by vibrating the net, clogging of the net was reduced, and the threshing efficiency of the threshing device and the grain collection efficiency could be improved.

Further, during the threshing work, it is possible to prevent the accumulation of straw chips and the like between the straw cutting blades and prevent the deterioration of the performance of the straw cutting blades, so that the threshing performance can be improved.

〔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. As shown in FIG. 6, the grain culm that has been conveyed while being held in a sideways posture by the feed chain (1) has a handling barrel (3) horizontally movably mounted in the handling room (2) in the threshing device. Depending on the handle (3) and the net
Threshed during (4).

Threshed paddy and relatively small straw debris leaks through the net (4) located under the handling cylinder (3), and the swinging sorting frame (5) below.
It falls on the Glen Pan (6) installed on the slab and is sent to the lower side of the Glen Sieve (7) while being sorted by specific gravity due to the oscillating action, and the oscillating action and Kara (8) at the Glen Sieve (7).
By the air blowing action from the paddy, the paddy is leaked and collected in the No. 1 material collecting section (9). The paddy with branch collected in the No. 2 material collecting section (10) is sent to a processing chamber (not shown) from a throw-off type thrower (not shown), and is subjected to singulation treatment and swinging selection frame.
Returned to (5).

Next, the receiving network (4) will be described. As shown in FIG. 5, the receiving net (4) has a structure in which a net (12) integrally formed of high molecular weight polyethylene resin is connected to an arcuate receiving frame (11) with bolts. Rollers (13) are attached to the net frame (11) at a plurality of left and right positions.

On the other hand, the left and right side walls (16) of the handling room (2) are
As shown in FIGS. 4 and 5, a pair of upper and lower first guide portions (14) are provided at locations corresponding to the rollers (13) of the receiving net (4),
A second guide portion (15) is provided between the first guide portions (14) so as to prevent the dust and the like from being accumulated by inclining downward. When the receiving net (4) is arranged below the handling cylinder (3), the tool post (27) is removed and the net (() is received from the first guide part (14) on the tool post (27) side. The roller (13) of 4) is inserted and the second guide portion (15) guides the roller (13) being inserted. With the above structure, the first guide portion (14)
The receiving net (4) can move in the circumferential direction of the handling cylinder (3) within the range of.

Next, the receiving net vibrating mechanism (17) for forcibly vibrating the receiving net (4) within the range of the first guide portion (14) will be described. As shown in Fig. 1 and Fig. 2, the horizontal axis (P ₁ ) on the back of the handling room (2)
A drive arm (18) that is pivotally supported around is engaged and connected to the rear surface of the net frame (11) to form a horizontal axis of the handling chamber (2).
An eccentric cam (19) that is driven to rotate around (P ₂ ) is provided, and the ring member (20) is externally fitted to the eccentric cam (19) via a bearing, so that the ring member (20) and the drive arm (18). ) And a linking rod (21) is installed. With the above structure, when the eccentric cam (19) is rotationally driven around the horizontal axis (P ₂ ), the drive arm (18) is vertically swung, and the receiving net (4) is moved to the first guide portion (14). It is forced to vibrate within the range of.

Next, the engagement connection structure between the drive arm (18) and the net frame (11) will be described. As shown in FIG. 2, two sets of left and right brackets (22) on the rear surface of the net frame (11) are provided with connecting pins (2
3) is attached so that it can rotate and slides freely in the left-right direction of the paper, and both connecting pins (23) are springs (24).
The bearing (25) is attached to the tips of both connecting pins (23) by being urged to the left and right protruding sides by.

With the above structure, the connecting pin (23) is rotated and the bearing (25) of both connecting pins (23) is rotated by the urging force of the spring (24).
By engaging the tip of the drive arm (18) (second
Connect the connecting pin (23) and the bearing (25) on the left side of the drawing sheet) and the net (4) to the drive arm (18). On the contrary, by pulling out both the connecting pins (23) from the drive arm (18) against the urging force of the spring (24) (see the connecting pin (23) and the bearing (25) on the right side in FIG. 2). , Drive arm
The receiving network (4) can be removed from (18).

As shown in Fig. 1, the tool post (27) is provided with a plurality of straw cutting blades (27a) for shredding straw scraps and the like entwined with the handling cylinder (3), and the rear ends of both side walls (16). The rear frame (2
It is fixed to 6) (corresponding to the fixed part) and is arranged so as to project into the handling chamber (2). As shown in FIGS. 1, 2, and 5, the rear end (11a) of the receiving net (11) (corresponding to the end of the receiving net (4)) is extended to provide a slit (11b). ,
The turret (27) is placed in the slit (11b) at the rear end (11a) that is extended.
The straw cutting edge (27a) is inserted. With the above structure, the receiving net (4) is vibrated while the rear end (11a) of the receiving net (11) is inserted between the straw cutting blades (27a).

[Another embodiment]

In the above-described embodiment, the roller net (13) is attached to the net frame (11), but as shown in FIG.
It is also possible to adopt a structure in which balls (28) are rotatably mounted 360 ° at a plurality of locations on (11) and flat guide rails (29) are provided on the side walls (16).

In the claims of the utility model registration, reference numerals are given for convenience of comparison with the drawings, but the invention is not limited to the configurations of the accompanying drawings by the entry.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of a threshing device according to the present invention. Fig. 1 is a side view showing a handling chamber and a net-receiving vibrating mechanism, and Fig. 2 shows a net-receiving vibrating mechanism and a net. FIG. 3 is a rear view of the receiving net showing the connecting structure, FIG. 3 is a sectional view taken along line III-III in FIG. 2, and FIG. 4 is a view showing the rollers of the receiving net on the second guide portion when inserting the receiving net. FIG. 5 is a sectional view showing a passing state, FIG. 5 is a perspective view showing a receiving net, first and second guide portions, FIG. 6 is an overall front view of a threshing device, and FIG. 7 is a side wall of another embodiment. It is sectional drawing near a guide rail. (2) …… Handle, (3) …… Handle, (4) …… Receiver net, (11a) …… End of receiver net, (17) …… Receiver vibrating mechanism, (26) …… Fixed part, (2
7a) …… Straw cutting edge.

Claims (1)

[Scope of utility model registration request] 1. A handling cylinder having a plurality of straw cutting blades (27a) connected and fixed to a fixing portion (26) so as to project into the handling chamber (2).
(3) Equipped with a net-mesh vibrating mechanism (17) for forcibly vibrating the arc-shaped net (4) arranged along the lower side along the circumferential direction of the handling cylinder (3) at a set stroke. Along with, by the forced vibration of the receiving net vibrating mechanism (17) at the fixed installation location of the straw cutting blade (27a), the end (11a) of the receiving net (4)
The threshing device in which the set stroke of the receiving net (4) is set so that the oil enters into the space between the straw cutting blades (27a) and vibrates.