JP3249599B2 - Vertical grain sorter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical grain sorter for sorting grains by relatively rotating a sorting net and a spiral spiral cylinder.

[0002]

2. Description of the Related Art Conventionally, as this type of vertical grain sorter, there are the following ones.

As shown in FIG. 2, a supply cylinder 1 having an open upper surface is provided on a lower partition plate 113 attached to a shell 101.
Reference numeral 08 is fixed, and a guide cylinder 109 having an open upper surface and a guide blade 109c on the peripheral surface is rotatably disposed in the supply cylinder 108. The sorting net 102 is placed on the guide cylinder 109, and a plurality of engagement grooves provided at the lower end of the sorting net 102 engage with the protruding pieces 109b projecting from the flange 109a of the guide cylinder 109, respectively. As a result, the two are configured to rotate integrally, and a hoisting spiral cylinder 103 having a spiral blade 104 on the peripheral surface is rotatably arranged in the sorting net 102 and the guide cylinder 109. I have.

A two-output gear motor 107 having two output shafts having opposite rotation directions and different rotation speeds is fixed to the lower surface of the lower partition plate 113. The two output shafts are formed on the lower partition plate 113. Projecting upward from the hole. The output shaft that rotates at a low speed is an induction cylinder 10.
9 is fixed to the bottom plate 109d, the output shaft rotating at high speed is fixed to the bottom plate 103a of the helix spiral cylinder 103, the guide cylinder 109 and the sorting net 102 are rotated at low speed, and the helix spiral cylinder 103 is rotated in the opposite direction. It is rotated at high speed.

A hopper 105 is communicated with the supply cylinder 108.
Is guided to an inlet (not shown) in the vicinity of the bottom plate 109d by the guide blades, and enters between the guide tube 109 and the helix spiral tube 103 through the guide inlet and is fried upward. The cereals are sorted from the spiral blades 104 of the high-speed rotating helical spiral cylinder 103.
The large good grain that has been bounced off and does not pass through the mesh is transferred onto the upper partition plate 110 and bounced off by the plurality of scraping blades 112 protruding from the upper end portion peripheral surface of the sorting net 102. Then, the gas is discharged from the discharge port 111 into the storage tank 106. On the other hand, small debris that has passed through the mesh
4 to the outside of the aircraft. (JP-A-2-122874).

[0006]

In the above-mentioned prior art, since the scraping blades are attached to a sorting net rotating at a low speed, the good grains transferred onto the upper partition plate are splashed toward the storage tank. Because the centrifugal force for flying is small, the flight distance of good grains is short, and good grains are stored in the storage tank near the discharge port and wasteful space is generated in the storage tank, about half Only good grain can be stored. In addition, since the guide cylinder and the sorting net rotate integrally, it is necessary to maintain the number of rotations at which the original function of the guide cylinder is achieved, so that the sorting net originally prevents the clogging. Therefore, it is rotated at a higher speed than the required rotation speed.

In addition, since the helix spiral cylinder and the sorting net are rotated in opposite directions, if the helix spiral cylinder is rotated at a high speed in order to improve the sorting performance, the relative speed difference between the two becomes too large. Cereals could be crushed during sorting.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has no wasteful space in the storage tank, increases the amount of good grain stored, and increases the amount of the spiral kernel. It is an object of the present invention to realize a vertical grain sorter in which the difference in relative speed with the sorting net does not become too large even when the is rotated at high speed.

[0009]

In order to achieve the above object, a vertical grain sorter of the present invention comprises a shell having a hopper disposed on an outer surface thereof, a shell fixed to a lower portion in the shell, and the hopper A supply cylinder communicated with the supply cylinder, a guidance cylinder having a guide wing on a peripheral surface disposed concentrically within the supply cylinder, and a sorting net having a discharge chamber at an upper portion provided above the guidance cylinder A lifting spiral cylinder having a spiral blade on a peripheral surface concentrically disposed in the sorting net and the guide cylinder and having a scraping blade on a peripheral surface of a portion protruding to the discharge chamber; and A storage tank for storing the good grains discharged from the chamber, rotating the unwinding spiral cylinder at a high speed and lifting the induction cylinder.
A first driving means for low-speed rotation to the rotation direction opposite to the direction of the grain spiral sleeve, and a second driving means for low speed the sorting net assembly to the same direction as the rotation direction of the AgeKoku spiral sleeve
Yusuke is characterized in Rukoto.

[0010]

The cereal thrown into the hopper is guided to the lower part of the guide cylinder by the guide wing of the guide cylinder that rotates at a low speed, enters the guide cylinder, and is grained by the spiral wing of the spiraling cylinder that rotates at a high speed. . The cereals are sorted by a sorting net during the frying,
The good grain is repelled by the centrifugal force of the scraping blades in the release chamber, flies to the wall on the opposite side of the storage tank on the non-release side, falls, and is stored in the storage tank. In addition, the sorting net rotates at a low speed in the same direction as the helix spiral cylinder, and there is no possibility that the relative speed between them becomes too large.

[0011]

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal sectional view of one embodiment of a vertical grain sorter according to the present invention.

A support member 16 is fixed to the inner wall at the lower part of the shell 1, and a bottom 8a of the supply tube 8 is fitted and fixed in a hole formed in the support member 16. Supply cylinder 8
On the lower surface of the bottom portion 8a, a two-output shaft gear motor 7 having two output shafts having opposite rotation directions and different rotation speeds is attached by bolts or the like.

A low-speed rotating output shaft of a two-output shaft gear motor 7 is fixed to a bottom plate 9b of a guide cylinder 9 having guide blades 9a on its outer peripheral surface concentrically arranged in a supply cylinder 8. The cereals that have been thrown into the supply cylinder 5 and fallen into the supply cylinder 8 are guided downward, and are guided into the guidance cylinder 9 from the supply port 9c.

The sorting net 2 is disposed above the guiding cylinder 9, the upper end of the guiding cylinder 9 is loosely fitted to the lower end of the sorting net 2, and a packing 18 is interposed between the two. Both are configured to be able to rotate relative to each other. Further, a discharge chamber 2a having a discharge port 12 having a diameter slightly larger than that of the screening net 2 is integrally formed at the upper part of the screening net 2, and the top wall 2b of the discharge chamber 2a is provided with the screening net 2 An output shaft of a motor 10 fixed to an upper lid 13 which is a second driving means for rotating at a low speed in the same direction as the helix spiral cylinder 3 is fixed. A clogging prevention plate (not shown) is provided on the inner wall of the shell 1 so as to project therefrom. .

The helix spiral cylinder 3 concentrically disposed in the guide cylinder 9 and the sorting net 2 has the spiral blades 4 attached to almost the entire peripheral surface thereof except for a portion protruding into the discharge chamber 2a. The output shaft of the two-output shaft gear motor 7 that rotates at high speed is fixed to the bottom plate 3a. Further, a plurality of scraping blades 11 are protruded from the peripheral surface of the portion of the filing spiral cylinder 3 protruding into the discharge chamber 2a at intervals.

As is apparent from the above description, the two-output shaft gear motor 7 is used to rotate the hoisting spiral cylinder 3 at high speed and to rotate the guide cylinder 9 at low speed in the direction opposite to the rotational direction of the hoisting spiral cylinder . It constitutes a first driving means.

Further, in this embodiment, a bearing 3c is fixed to the top plate 3b of the helix spiral cylinder 3, and the motor 1 is connected via the bearing 3c.
It is devised to prevent the swinging motion of the helix spiral cylinder 3 by supporting it freely at the tip of the output shaft 0. Further, an overflow hole 14 communicating with an overflow pipe 15 is provided immediately below the discharge port 12 of the storage tank 6 so as to keep the level of good grains stored in the storage tank 6 at a certain limit.

Next, the operation of this embodiment will be described.

The induction cylinder 9 is rotated at a low speed by the two-output shaft gear motor 7, and the hoisting spiral cylinder 3 is rotated at a high speed in the opposite direction. The motor 10 moves the sorting net 2 at a low speed in the same direction as the hoisting spiral cylinder 3. Grains are put into the hopper 5 while being rotated.

Then, the cereals are guided downward by the guide wings 9a of the rotating guide cylinder 9 and fed through the supply port 9c.
, And is guided between the high-speed rotating helix spiral cylinders 3, and is upwardly fried by the spiral blades 4. In the meantime, the grains are bounced outward by centrifugal force, and dust particles having a smaller particle size than the mesh of the sorting net 2 are discharged into the room between the sorting net 2 and the shell 1 and fall downward. , And is discharged from the discharge port 17 to the outside of the machine.

On the other hand, good grains having a particle size larger than the mesh of the sorting net 2 are lifted upward by the spiral blades 4 and transferred to the discharge chamber 2a above the sorting net 2, where the scraping blades 11 As a result, the water is splashed through the discharge port 12 toward an inner wall surface (hereinafter, referred to as a “front wall”) facing the discharge port 12 of the storage tank 6. At this time, since the scraping blade 11 is rotating at a high speed integrally with the helix spiral cylinder 3, the repelled good grain is stored from the front wall side of the storage tank 6, and is wasted in the storage tank 6. No space is created.

By the way, the helix spiral cylinder has a rotation speed of 300.
Grains were not crushed even when the sorting operation was performed by rotating the guide cylinder clockwise at ~ 400 rpm, rotating the guide cylinder to the left at a rotation speed of 75 rpm, and setting the sorting net to a clockwise rotation at a rotation speed of 10 rpm.

[0024]

Since the present invention is configured as described above, the following effects can be obtained.

Since the sorted good grains are stored in large quantities without generating useless spaces in the storage tank, the capacity of the storage tank can be reduced as compared with the conventional example.

Further, since the rotating direction of the high-speed rotating helical spiral cylinder and the low-speed rotating sifting net are the same, even when the high-speed helical rotating cylinder is rotated at a high speed to increase the amount of sorting, the relative rotation between the two is increased. Since the speed difference is not large compared to the conventional example,
There is no danger of cereals being crushed.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a vertical grain sorter of the present invention.

FIG. 2 is a longitudinal sectional view of a conventional vertical grain sorter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shell 2 Sorting net 3 Lifting spiral cylinder 3a Bottom plate 3b Top plate 4 Spiral wing 5 Hopper 6 Storage tank 7 Two output gear motor 8 Supply cylinder 9 Induction cylinder 9a Induction wing 10 Motor 11 Scavenging blade 12 Discharge port 13 Top lid 14 Overflow Hole 15 Overflow pipe 16 Support member 17 Outlet 18 Packing

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B07B 1/22

Claims (3)

(57) [Claims] 1. A shell body having a hopper disposed on an outer surface thereof, a supply cylinder fixed to a lower portion of the shell body and communicated with the hopper, and a peripheral body concentrically disposed in the supply cylinder. A guide cylinder having guide wings on its surface, a sorting net having a discharge chamber at an upper portion disposed above the guide cylinder, and a peripheral surface concentrically disposed in the sorting net and the guide cylinder. A frying spiral cylinder having a spiral blade and having a scraping blade on a peripheral surface of a portion protruding into the discharge chamber; and a storage tank for storing good grain discharged from the discharge chamber, While rotating the spiral cylinder at high speed,
First driving means for rotating at a low speed in a direction opposite to the rotation direction of the helix spiral cylinder; and second driving means for rotating the sorting net at a low speed in the same direction as the rotation direction of the helix spiral cylinder. vertical grain sorter, characterized in Rukoto to have a. 2. The vertical grain sorter according to claim 1, wherein the helix spiral cylinder is freely rotatably supported on an output shaft of a second drive means via a bearing fixed to a top plate thereof. Machine. 3. An overflow hole is provided in the storage tank,
The vertical grain sorter according to claim 1 or 2, wherein the overflow hole is communicated with an overflow pipe.