JP2528545Y2 - Threshing equipment in conventional combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a threshing apparatus in a common type combine for cutting and threshing millet crops such as wheat, buckwheat, soybeans and rapeseed.

[Problems to be solved by conventional techniques and devices]

Conventionally, wheat and other cereal crops are lifted and transported to the rear of the mowing machine in the mowing and transporting section at the front of the machine, and all of the cut culm is supplied to the threshing section as it is for threshing. As a normal type combine threshing device to sort into culm,
The threshing body of the threshing unit is formed in a cylindrical shape surrounding the outer periphery of the threshing cylinder, and the threshing body is rotated in a direction opposite to the rotation direction of the threshing cylinder, so that good threshing performance can be obtained for long culms and wet materials. What is obtained is known.

In the above conventional threshing device, the rocking shelf of the sorting section is extended to near the end of the leaking body in order to collect the grains that have been transported to near the end of the leaking body and leaked. Since the end portion is close to the dust outlet, the grains that leak near the end portion of the rotating leaking body and fall on the rocking shelf are subject to the inertial force due to the rotation of the leaking body and the swinging motion of the swinging shelf. There was a problem that the particles repulsively scattered and scattered from the dust outlet to become lost particles.

The present invention has been made in view of the above-mentioned conventional problems, and has been made to solve the above problems.The present invention collects the scattering loss caused by random repulsion of the leaked kernel near the end of the leaking body, and reduces the grain yield. It is an object of the present invention to provide a threshing apparatus in a normal type combine which can improve the yield of ash.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a reaping conveyance section,
A threshing unit, provided with a sorting unit, in the threshing unit, in a normal type combine in which a threshing cylinder rotating in the opposite direction to each other and a cylindrical leaking body surrounding the threshing cylinder, on the outer periphery of the terminal end of the leaking body. In addition, a round dish-shaped grain recovery plate is provided, with a concave surface for receiving the leaked grains facing forward.

[Action]

Therefore, according to the present invention, the grains that have leaked near the end of the leaking body are received by the inner peripheral surface of the circular dish-shaped grain recovery plate with the concave surface facing forward and returned forward, and It falls from the front edge of the grain collecting plate onto the swinging shelf below and is collected in the second spiral. For this reason, the scattering loss of the kernel that has leaked near the conventional end of the main body is recovered, and the yield of the kernel can be improved.

〔Example〕

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

1 to 3, reference numeral 1 denotes a normal combine,
Reference numeral 2 denotes a harvesting / transporting unit provided at the front of the machine body, reference numeral 3 denotes a threshing unit provided behind the harvesting / transporting unit 2, and reference numeral 4 denotes a sorting unit provided below the threshing unit 3.

The cutting and conveying section 2 includes a weeding body 5, a cutting blade 6, a grain stalk raking reel 7, a central raking auger 8, a lifting conveyor 9 by a belt conveyor, and the like.

The threshing unit 3 includes a threshing chamber 10 in which a thrust cylinder 13 provided with a transfer spiral plate 11 and a number of threshing blades 12 provided on the outer peripheral surface thereof is tilted forward in the longitudinal direction of the fuselage. Is provided with a cylindrical leaking body 14.

Reference numeral 14 denotes a cylindrical leak body surrounding the threshing cylinder 13, and the leak body 14 has a front ring rail 15, an intermediate ring rail 16, and a rear ring gear 17 to which a crimp net 18 is attached. The section ring rail 15, the middle section ring rail 16 and the rear ring gear 17 are respectively mounted on the top and lower left and right front rollers 19, the middle section rollers 20, which are arranged and mounted at substantially the vertices of an equilateral triangle in the threshing chamber 10. A pulley 23 rotatably supported by a rear pinion gear 21 and attached to an end of an extension shaft 22 of the rear pinion gear 21 on one lower side, and a pulley 25 attached to an end of a rear shaft 24 of the threshing cylinder 13 by a belt 26. The shedding body 14 and the threshing cylinder 13 are connected to each other, and are rotated in opposite directions in conjunction with the rotation of the threshing cylinder 13.

27 is a grain collecting plate according to the present invention,
Numeral 27 is formed in a circular dish shape, and attached to the outer periphery of the terminal end of the leaking body 14 so as to rotate integrally with the leaking body 14 with the concave surface facing forward.

The rear of the threshing chamber 10 is a dust exhaust chamber 28, and the dust exhaust chamber 28
Fan 29 formed at the rear end of the threshing cylinder 13
Is accommodated, and a culm opening 30 is opened to the outside at a lower part of the dust chamber.

The sorting unit 4 includes an upper swinging shelf 33 including a straw rack 31 and fins 32, a lower swinging shelf 37 including a straw rack 34, a crimp net 35, a chaff sheave 36, a first fan 38, a second fan 39, 3 fans 40, 1st spiral 41, 2nd spiral
The end of the chaff sheave 36 at the rear of the lower swinging shelf 37 is extended to almost the end of the leaking body 14.

In the configuration described above, the whole grain stalks harvested and lifted and transported by the harvesting and transporting section 2 are supplied to the threshing room 10 as they are. The supplied grain stalks are transported rearward by the transfer spiral plate 11 while being threshed by the threshing processing blade 12 of the threshing cylinder 13 between the threshing cylinder 13 and the leaking body 14 rotating in opposite directions, and the leaking body to the end. Grain stalks that do not leak from 14 are discharged from the culm opening 30 by the wind power of the dust discharge fan 29. The grains and foreign substances that have leaked from the leaking body 14 in the above process and have fallen on the upper rocking shelf 33 are subjected to the rocking sorting by the upper rocking shelf 33 and the wind sorting action by the first fan 38 so that the grains and foreign substances are removed. The kernels are leaked from the gap between the fins 32 to the lower swinging shelf 37,
Impurities are discharged from a dust outlet 43 at the rear of the sorting unit 4.

The grains that have leaked to the lower rocking shelf 37 are separated here by the rocking sort by the lower rocking shelf 37 and the wind sorting action by the second fan 39 to separate the grains and the impurities still mixed in the crimped net.
The grains leaking from 35 are collected by the first spiral 41 and sent out of the machine, and impurities not leaking from the crimp net 35 are sent to the rear chaff sieve 36. The grains and impurities that have leaked at the rear of the leaking body 14 and have fallen on the chaff sieve 36 are separated from the grains and impurities by rocking sorting by the chaff sieve 36 and wind sorting by the third fan 40. Is the second spiral
Collected at 42, reduced to the threshing unit 3 and reprocessed, the contaminants are discharged from the dust outlet 43.

Here, the grains that have leaked near the end of the leaking body 14 are received by the inner peripheral surface of the circular dish-shaped grain recovery plate 27 with the concave surface facing forward and guided forward, and from the front edge thereof. It falls on the chaff sheave 36 and is collected by the second spiral 42. For this reason the leaking body 14
The grains that have leaked near the end of the grain are prevented from being repelled and scattered due to the inertial force due to the rotation of the leaking body 14 and the swinging motion of the chaff sheave 36 to become lost grains, and the yield of grain yield is reduced. Is improved.

FIGS. 4 and 5 show an embodiment in which a plurality of radial blades 44 are provided on the inner surface of the edge of the grain recovery plate 27. FIG. According to this grain collecting plate, the grains leaking near the end of the leaking body 14 are equally distributed and received in the respective sections of the grain collecting plate 27 separated by the blades 44, and the chaff sheaves are received. 36
Therefore, the swing sorting in the chaff sheave 36 proceeds smoothly, and the yield of grain yield can be further improved.

FIG. 6 shows a circular dish-like plate 45 similar to the grain recovery plate 27,
1 shows a threshing device mounted so that the concave surface faces rearward at the end of the leaking body 14 and rotates integrally with the leaking body 14.

In a threshing device that improves threshing performance by rotating the threshing cylinder and cylindrical leaking body in opposite directions, etc., the threshing performance is improved and the amount of leakage at the start end of the leaking body is large, and It is easy to accumulate in a mountain shape at the start end of the upper swing shelf 33. On the other hand, the top end of the upper swinging shelf 33 is connected to the body via a flexible body 46 so that the swinging is not hindered.
Poor transportability of the leaking body and poor adhesion of the flexible body 46 in part 46 cause leakage of debris and grains in this part,
Wear is likely to occur when the leaking body directly hits 46. The circular dish-shaped plate 45 is provided with a flexible body for leaking the leaked material near the start end of the leaking body 14.
The above-mentioned various inconveniences are solved by guiding the rearward from the position 46 to the upper swinging shelf 33 uniformly. By providing a blade plate similar to that shown in FIGS. 4 and 5 on this circular plate-shaped plate 45, the supply of the leaked material from the start end of the leaking body 14 to the upper swinging shelf 33 is further evenly distributed. be able to.

[Effect of the invention]

In short, the present invention is based on a mowing transport unit, a threshing unit,
With a sorting unit, in the threshing unit, in a normal type combine in which a threshing cylinder rotating in opposite directions to each other and a cylindrical leaking body surrounding the threshing cylinder, the threshing cylinder leaked to the outer periphery of the terminal end of the leaking body. With the provision of a circular dish-shaped grain collection plate with the concave surface facing the front facing the grain, the kernels leaking near the end of the leaking body can be converted into a circular dish-shaped grain with the concave surface facing forward. It is received by the inner peripheral surface of the grain collecting plate and returned forward, dropped from the front edge of the grain collecting plate to the swinging shelf of the sorting section, and collected by the second spiral. Therefore, the grains that have leaked near the terminal end of the leaking body are recovered without becoming the scattering loss grains, and the yield of the grain yield can be improved.

[Brief description of the drawings]

1 to 5 show an embodiment of the present invention.
Fig. 2 is a sectional side view of a general combine adopting the present invention, Fig. 2 is a back sectional view of the combine, Fig. 3 is a sectional side view of a main part, and Fig. 4 is another embodiment of a grain collecting plate. , FIG. 5 is a front view of the same part, and FIG. 6 is a side sectional view of a threshing device provided at the start end of a leaking body of a circular dish-like plate. DESCRIPTION OF SYMBOLS 1 ... Combined type combine, 2 ... Cure conveyance part, 3 ... Threshing part, 4 ... Selection part, 13 ... Threshing cylinder, 27 ... Grain recovery board.

Claims (1)

(57) [Scope of request for utility model registration] An ordinary combine comprising a cutting and conveying unit, a threshing unit, and a sorting unit, wherein the threshing unit is provided with a threshing cylinder rotating in opposite directions and a cylindrical leaking body surrounding the threshing cylinder. 3. A threshing device in a normal combine, wherein a round dish-shaped grain collecting plate having a concave surface for receiving the leaked grain is directed forward on the outer periphery of the terminal end of the leaking body.