JPH06101966B2 - Threshing equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a threshing device equipped with a resin net.

[Conventional technology]

Conventionally, as a technique for enhancing the leakability of the net, the net is made of a resin material to suppress the adhesion of the treated material to the net, and even when a damp culm is supplied, There are those that are less likely to cause clogging (see, for example, JP-A-63
-49017).

[Problems to be Solved by the Invention]

Further, even in the threshing device in which the net is made of a resin material as described above, a vibrating net is being developed in order to further improve the leakage performance.

That is, in the culm removal device that vibrates the receiving net, by forcibly vibrating the receiving net, for example, even when processing grain culms containing a large amount of water, the adhesion of water to the receiving net, straw fiber, etc. It is designed to prevent clogging caused by the fibers of straws growing on the net because they are bounced off by the vibration force.

Further, according to an experiment conducted by the applicant by manufacturing a threshing device having such a structure for vibrating the net, the higher the frequency per unit time and the larger the stroke of vibration, the more the mesh size of the net is increased. It has been confirmed to enhance the anti-clogging effect.

However, in the case of vibrating the receiving net, if the frequency and the stroke of vibration are set to extremely large values as described above, the processed material such as grains in the handling chamber only comes into contact with the receiving net,
As a result of the vibration force of the receiving net greatly jumping up, a phenomenon occurs in which leakage to the receiving net is prevented.

That is, when the frequency and the stroke of the receiving net are set to extremely large values, the clogging of the receiving net is suppressed, but the leakage performance of the receiving net is rather impaired.

The object of the present invention was made on the basis of such a fact, and by reasonably modifying the resin-made receiving net and appropriately setting the forced vibration condition, the clogging can be suppressed. The point is to configure a threshing device that can maintain high leakage performance of the net.

[Means for Solving the Problems]

A feature of the present invention is that the receiving net arranged along the rotation trajectory of the handling cylinder is made of a resin material having high wear resistance and high water repellency, and the handling cylinder side of the lattice member forming the opening of the receiving net. On the projecting curved surface and the non-handling cylinder side set to a flat surface, and integrally formed, and a forced vibration mechanism for forcibly reciprocally vibrating the receiving net along the circumferential direction of the handling cylinder is provided. The stroke is set to approximately 2.3 times the opening width in the direction along the circumferential direction of the handle on the leakage bottom surface, and the reciprocating frequency of the forced vibration mechanism is set to approximately 500 times per minute. And its action and effect are as follows.

[Action]

That is, when the cross-sectional shapes of the lattice members (24) and (25) of the receiving net (N) are configured as shown in FIG. 2 and FIG. 3, the lattice members (24) and (25) have projecting curved surfaces (T). Since the flat surface is formed, even if the water from the grain culm moves to the lattice members (24) and (25), the water on the projecting curved surface (T) does not stay and flows to the counter-handling cylinder side and becomes flat. (U) and the side surfaces (V) of the lattice members (24) and (25) concentrate on the edge portions to form water droplets, which are then separated from the lattice members (24) and (25) and fall.

Further, as shown in FIG. 2, the vibration stroke (S) is approximately 2.3 times the opening width (W ₂ ) of the mesh (mb), and the net (N) is forcedly reciprocated approximately 500 times per minute. Since the forced vibration mechanism (A) is provided, the phenomenon that the processed material such as grain is scattered by the contact with the lattice members (24) and (25) of the receiving net (N) is relatively suppressed. In addition, it becomes easy to peel off the processed material attached on the protruding curved surface (T), and the occurrence of clogging is suppressed.

The values of the vibration stroke (S) and the frequency are based on the best value among the results of the experiment conducted by the applicant, and thus the scattering of the processed material such as grain is suppressed. The reason is that the velocity distribution of the receiving network (N) based on time when the receiving network (N) is reciprocally oscillated is represented by a sin curve, so that the velocity of the receiving network (N) near the stroke end of the vibration is The moving speed is low and the receiving network (N)
Is set to a half stroke, that is, a vibration stroke that reaches the maximum speed at the position moved by the opening width (W ₂ ) to reduce the probability of contact between the grid members (24) and (25) and the workpiece. It is possible. When the stroke is set to be larger than that of the present invention with the same frequency as that of the present invention, the maximum speed of the net (N) becomes large and the lattice member (24),
The probability that (25) will come into contact with the processed material will also increase, and
The impact at the time of contact becomes large, and the scattering of the processed material increases.

〔The invention's effect〕

Therefore, according to the present invention, by modifying the shape of the lattice member of the net made of resin and appropriately setting the vibration stroke and frequency, clogging can be suppressed and the leakage performance of the net can be improved. It was possible to construct a threshing device that can be maintained at a high price.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 9 shows a threshing device mounted on the combine, and this threshing device rotates in the handling chamber (R) in which the grain culms are supplied by the feed chain (1), which rotates around the rotation axis (P). The body (N) 2) is housed, and the receiving net (N) curved along the circumferential direction of the handling body (2) is arranged in the lower part of the handling room (R), and below the receiving net (N). Is provided with an oscillating sorting mechanism (3) for sorting the processed products from the receiving net (N) and a sardine lees (4) for supplying sorting air. Further, a swinging sorting mechanism (3) is provided below the oscillating sorting mechanism (3). A No. 1 screw (5) for collecting grains that leak through the grain sieve (3a) of the dynamic sorting mechanism (3) and a No. 2 screw (6) for collecting processed products mixed with grains are arranged. A processing mechanism (7) for accelerating the granulation of the processed product from the No. 2 screw (6) is provided on the coaxial core of this No. 2 screw (6). Vignetting, the processing mechanism (7) conveying screw Send reprocessing was the swinging sorting mechanism (3) (8) is provided from, also oscillating sorting mechanism (3)
A drive mechanism (9) for applying a swinging force to the device and a dust-exhausting fan (10) for sucking and discharging dust inside the device are provided.

As shown in FIGS. 1 and 4, the receiving net (N) is made by integrally molding an ultrahigh molecular weight polyethylene material having excellent wear resistance and water repellency, and at the same time, the forced vibration mechanism (A) It is configured to forcibly reciprocate along the circumferential direction of the handling cylinder (2).

The forced vibration mechanism (A) as shown in FIGS.
Output pulley (1) provided on the drive shaft (2a) of the handling cylinder (2)
Power from 1) endless belt (12), input pulley (13)
The input shaft (14) that is transmitted via the and this input shaft (14)
It comprises two eccentric members (15), (15) which are fitted onto the outer circumference of the eccentric member, and a swing arm (17) to which a reciprocating driving force is transmitted via a plate (16) connected to the eccentric member (15). The moving arm (17) has a base end side swingably supported by a wall portion of the threshing device via a support shaft (18), and has a swing end side engaging piece (19).
It is engaged with the roller (21) provided on the support frame (20) of the receiving net (N) via the.

A large number of wheels (22) are provided on the support frame (20) of the net (N), and the wheels (22) are guided to the rail plate (23) provided on the inner wall of the threshing device. As a result, the receiving net (N) vibrates reciprocally along the circumferential direction of the handling cylinder (2) by the power from the forced vibration mechanism (A), and the input shaft ( The rotational speed of 14) is set to 500 rpm, and the vibration stroke (S) is, as shown in FIG. 1, the opening of the mesh (mb) on the leakage lower surface (Na) of the receiving net (N) described later. By setting the width to 2.3 times the width (W ₂ ), it is possible to prevent clogging of the receiving network (N).

As shown in FIGS. 1 to 4, the receiving net (N) includes a leakage lower surface (Na), a peripheral mounting surface portion (Nb) around the leakage lower surface (Na), and an intermediate mounting surface portion (N) intermediate between the leakage lower surfaces (Na). Nd) is integrally molded, and the leakage lower surface (Na) is formed by a number of vertical lattice members (24) formed along the rotation direction of the handling cylinder (2), and the rotation axis of the handling cylinder (2). It is composed of a large number of horizontal lattice members (25) formed along the core (P). Then, as shown in FIG. 4, the leakage lower surface (Na) has a square mesh (ma) group with an opening width (W ₁ ) set to 9 mm and an opening width (W ₂ ) set to 11 mm. It has a square type of mesh (mb) group, and as shown in FIG.
The leaking lower surface (Na) provided with a group (ma) of small opening width (W ₁ ) is on the upper side in the conveying direction of the grain stem by the feed chain (1), that is, the entrance of the handling room (R). It is formed in the area of about 1/4 of the total length of the receiving network (N) from the side.

The width (D ₂₅ ) of the horizontal lattice member ( ₂₅ ) is the vertical lattice member (24).
Is set to be larger than the width (D ₂₄ ) of each of the grid members so that the wear of the grid members can be made uniform, and as shown in FIGS. 3 and 4, the grid members (24), (25), ... Even if the moisture from the grain stem moves to the projecting curved surface (T) by molding the handling cylinder side of the No. 3 into the projecting curved surface (T) and the side of the non-treating cylinder side into the flat surface (U), this moisture will remain in the lattice member ( 24), (25) ... flows along the side surface (V) to the side opposite to the handling cylinder, and this side surface (V) and flat surface (U)
At the edge part formed by and, it becomes a water drop and separates and falls.

The receiving net (N) is fastened and fixed to the support frame (20) with a large number of screws (26), and a bow metal (27) is fitted on the handle barrel side surface as shown in FIG. A fitting recess (Nc) is formed to support the bow (27) and the fitting piece (27a).
Is fixed in the fitting recess (Nc) with a screw (26) in a stable state.

By the way, in the threshing device, as shown in FIG. 5, two frames (20) each having a receiving net (N) stretched are connected and used.

[Another embodiment]

In addition to the above-described embodiment, the present invention can be used without attaching the receiving net to the supporting frame, and in such a case, as shown in FIG. 10, the receiving net made of resin material (N ) Can be directly supported by the rail plates (30) and (30), and can be configured without using a wheel.

Further, the present invention can be carried out by setting the opening width of the receiving net to be uniform, and the forced braking mechanism can be configured by using an electric motor.

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

[Brief description of drawings]

The drawings show an embodiment of the threshing apparatus according to the present invention. Fig. 1 is a perspective view of a part of the net, Fig. 2 is a sectional view taken along the line II-II of Fig. 1, and Fig. 3 is that of Fig. 1. III-III sectional view, FIG. 4 is a partially cutaway plan view of the net, FIG. 5 is an exploded perspective view showing the net, bow, and support frame, and FIG. 6 is a threshing device showing a forced vibration mechanism. 7 is a cross-sectional view showing the linkage between the forced vibration mechanism and the receiving net, FIG. 8 is a cross-sectional view showing the wheel body, rail plate, etc., and FIG. 9 is an overall side view of the threshing device. FIG. 10 is a sectional view showing another embodiment of the receiving net. (2) …… Handle, (24), (25) …… Lattice member, (A)
...... Forced vibration mechanism, (N) …… receiving net, (S) …… vibration stroke, (T) …… protruding surface, (U) …… flat surface,
(W ₂ ) …… Aperture width.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Teruo Mino 64 Ishizukita-cho, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Works (72) Inventor Yoshitada Nakamura 64, Ishizukita-machi, Sakai City, Osaka Kubota Iron Works Company Sakai Factory (72) Inventor Masaru Ando 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Factory (56) Reference JP 63-109714 (JP, A) JP 55-135517 (JP JP, A) JP 63-49017 (JP, A) JP JP 63-133918 (JP, A)

Claims (1)

[Claims] 1. A net (N) arranged along the rotation locus of a handling cylinder (2) is integrally molded with a resin material having high abrasion resistance and high water repellency, and the net (N) is The lattice members (24) and (25) forming the leaking lower surface (Na) are integrally formed by setting the handling cylinder side to the projecting curved surface (T) and the non-handling cylinder side to the flat surface (U), and also to form the net. The forced vibration mechanism (A) for forcibly and reciprocally vibrating (N) along the circumferential direction of the handling cylinder (2) is provided, and the vibration stroke (S) of the net (N) by the forced vibration mechanism (A) reduces the leakage lower surface. (Na)
The mesh width (mb) in Fig. ₂ is set to approximately 2.3 times the opening width (W ₂ ) in the direction along the circumferential direction of the handling cylinder, and the reciprocating frequency of the forced vibration mechanism (A) is set to approximately 500 times per minute. A threshing device characterized by being set.