JPH08233461A - Grain agitator for grain dry-storage facility - Google Patents

Abstract

PURPOSE: To eliminate excessive or insufficient drying, and uneven drying by a method wherein an agitation rod is inserted into a guide cylinder free to move vertically, and the upper end part and the lower end part of the agitation rod are protruded above and below the guide cylinder separately to intensify an agitating capacity with the agitation rod. CONSTITUTION: The lower end of an agitation rod 18 is arranged to extrude downward from a guide cylinder even when the guide cylinder 29 lowers most. Grains on the bottom part of a drying storage tank 3 are lifted through the inside of the guide cylinder 29 to be discharged to an upper layer part from the upper end thereof. With the rotation of the agitation rod 18, the grains accumulated on the bottom part of the drying storage tank 3 is introduced into the guide cylinder 29 and moved upward through the guide cylinder 29 by a blade of the agitation rod 18. The grains are discharged at the upper end of the guide cylinder to be mixed with grains fed newly while with the rotation of the guide cylinder 29, grains in the perimeter thereof are lifted being stirred up to agitate the grains in the drying storage tank 3 thoroughly. Thus, the grains thus fed can be dried uniformly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain stirring device for a grain dry storage facility, and more particularly to a structure of a stirring rod.

[0002]

2. Description of the Related Art When storing harvested grain in a grain dry storage tank, raw rice immediately after harvest has a high water content of around 25%, and if it is accumulated for a long time, it will deteriorate. Need to be dried up to about%. Therefore, conventionally, a large number of holes are provided in the floor plate of the grain dry storage tank to have a structure with good air permeability, and the drying air is sent into the tank through this floor plate to aerate and dry the grain during storage. At this time, the grains in the grain dry storage tank are stirred and mixed, and the dried grains at the bottom of the tank are lowered to the upper layer, and the moisture-rich grains at the upper layer are lowered to the bottom, whereby the whole of the tank is I try to make the dryness as homogeneous as possible.

For agitation of grains, a movable table that travels in the front-rear direction is provided above the storage tank, and a dolly that moves left and right on the movable pedestal. The dolly is provided with spiral blades on the outer circumference. A plurality of stirring bars are suspended vertically, and the stirring bars are rotated to move inside the tank to uniformly stir the grains.

However, as the accumulation of grains increases, the load on the stirring rod increases, and when the dryness of the grains is low, the binding between the grains is strong, and Resistance to rotation increases, even if you try to move the bottom grain upwards, you can not move it sufficiently, most of the bottom grain remains as it is, cracking of the grain due to overdrying occurs, upper layer There was a problem that the drying of some grains became incomplete. The only countermeasures for this are to reduce the accumulated amount of grain and spread it thinly to dry it, or increase the dryness in advance and put it in a dry storage tank, which greatly increases the drying time and the number of man-hours required for drying. Up was inevitable.

In order to solve the above-mentioned conventional problems, an object of the present invention is to enhance the ability of a stirring rod to stir grain so as to eliminate excess and deficiency of drying and unevenness of drying.

[0005]

In the present invention, the stirring rod is inserted into a vertically movable guide cylinder, and the upper end and the lower end of the stirring rod are projected above and below the guide cylinder, respectively.

[0006]

The height of the guide cylinder is adjusted according to the accumulation state of the grains, and the grains at the bottom are collected by the rotation of the stirring rod and transferred to the upper layer portion between the guide cylinder and the stirring rod.

[0007]

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a front sectional view of a grain dry storage facility provided with the grain stirring device of the present invention, and FIG. 2 is a side sectional view of a main part thereof. Reference numeral 1 is a grain storage warehouse, in which the outer wall and roof of the building have a square corrugated iron plate and a heat insulating material attached to the inside to provide a heat retaining structure. The inside of the grain storage warehouse 1 is vertically and horizontally divided by a partition wall 2 to form a dry storage tank 3. Dry storage tank 3
The floor plate 4 is provided with a large number of ventilation holes having a diameter that does not allow the grains to fall, thereby forming a structure having high air permeability. A grain discharge port 5 is formed in one corner of the floor plate 4, a discharge rotation conveyor 6 extending in the front-rear direction is installed under the floor immediately below the discharge port 5, and a hopper 7a is provided at the end of the discharge rotation conveyor 6 to dry from the hopper 7a. The transferred grains are transferred and connected to another processing workshop. further,
An air guide passage 8 is formed below the floor plate 4, and a blower port of a blower (not shown) is connected to the air guide passage 8 so that dry air is introduced into the air guide passage 8.
Then, dry air is sent from the floor board 4 to the grains in the dry storage tank 3 to dry the grains.

A beam 9 is passed over the dry storage tank 3 and fixed to the side wall of the building and the partition wall 2. Reference numeral 10 is a monitoring passage for monitoring the operating condition. 11 is a stake-in conveyor,
The end thereof is connected to the moving conveyor 12 via the hopper 7b. The moving conveyor 12 moves on the rail 9 a along the beam 9.

The grain is transferred from the stake conveyor 11 to the hopper 7b.
After that, it flows to the moving conveyor 12, and then, through the spraying devices 13 provided at the front and rear ends of the moving conveyor 12, it is dropped into the lower dry storage tank 3. The moving conveyor 12 moves in the front-back direction centering on the hopper 7b of the tension conveyor 11, and reverses the traveling direction of the conveyor belt to change the dropping position of the grain, and successively to all the dry storage tanks 3 Feed the grain to. Reference numeral 14 denotes a guide rail having a mountain-shaped cross section, and a moving wheel 15a is placed on the guide rail to support the moving base 16.

FIG. 3 is a front view showing the movable table 16 with a part thereof omitted. The self-propelled device 17 is mounted on the moving table 16.
Reference numeral 20a is a moving motor of the self-propelled device 17, and 21a is a rotation direction converter, which converts the rotation direction of the motor 20a by 90 degrees to transmit power to the rotating shaft 22 of the moving wheel 15a, and moves the moving table 16 along the guide rails 14. Move back and forth. Further, on the moving table 16, a slide rail 2 having a mountain-shaped cross section in the left-right direction is provided.
A pair of three wheels 3 are provided, and the moving wheel 15b is placed on the slide rail 23 to support the carriage 24.

A carriage moving device 25 is mounted on the carriage 24, and the rotation direction converter 21b converts the rotation direction of the moving motor 20b by 90 degrees to transmit power to the rotary shaft 22b of the moving wheel 15b, and the rotary shaft 22b carries the carriage. 24 four wheels 1
5b is rotated to move the carriage 24 in the left-right direction along the slide rail 23. The carriage 24 includes a stirring rod drive device 19 for rotationally driving the stirring rod 18 in left and right symmetrical positions.
The stirring rod driving device 19 is composed of a driving motor 26 and a stirring rod rotating shaft 27 which is belt-driven by the driving motor 26. The stirring rod rotating shaft 27 has a tip protruding below the carriage 24, and the stirring rod 18 is attached to the tip.

FIG. 4 is a side view showing the details of the stirring device of the present invention, FIG. 5 is a partially cutaway plan view showing the details of the stirring device, and FIG. 6 is a cutaway side view of the same part. The stirring rod 18 has a spiral blade formed on the outer periphery thereof, is directly connected to the stirring rod rotating shaft 27 of the stirring rod driving device 19, and the first gear 28 is coaxially fixed at a predetermined position of the stirring rod rotating shaft 27 to thereby carry the cart. Suspend from 24. A guide tube 29 is rotatably provided on the outer periphery of the stirring rod 18 with a margin so as to cover the stirring rod 18, and a spiral blade is formed on the outer periphery of the guide tube 29 in the opposite direction to the stirring rod 18.
On the upper end of the guide cylinder 29, a flange 36 that expands outward and a drum gear 41 that projects to the outer periphery are formed at a predetermined position below the flange 36. Then, the stirring rod rotating shaft 27 is placed at a predetermined position of the carriage 24.
A plurality of fixed columns 30 and slide columns 31 are suspended on a concentric circle centered at.

Further, the stirring rod 18 and the guide tube 2 are provided at the center.
9 through which the fixed column 30 and the slide column 31 are inserted, respectively, at a predetermined interval in parallel with the carriage 24,
From the top, the first fixed plate 32, the second fixed plate 33, the movable plate 3
4, the third fixing plate 35 is arranged in this order, and the first fixing plate 3
2, the second fixing plate 33 and the third fixing plate 35 are fixed to the plurality of fixing columns 30 at their respective positions, and the movable plate 34 is slid between the second fixing plate 33 and the third fixing plate 35. It is fixed to the lower end of the column 31, and is moved in the vertical direction by the vertical movement of the slide column 31.

Next, the flange 36 of the guide cylinder 29 is rotatably supported by the movable plate 34, and the plurality of slide columns 3 are supported.
The upper end of 1 penetrates the bottom plate of the dolly 24 to project upward, and a rack 37 extending in the up-down direction is formed at a portion projecting upward of at least a pair of opposed slide columns 31. A pinion gear 38 meshing with the rack 37 is axially supported in parallel with the bottom plate at a predetermined position of the carriage 24 corresponding to the pair of slide columns 31 forming the rack 37, and the pinion gear 38 is provided with a manual handle or a dedicated motor ( By rotating (not shown), the height of the guide cylinder 29 is adjusted and moved up and down. Further, a second gear 39, which meshes with the first gear 28 of the stirring rod rotary shaft 27, is vertically supported between the first fixed plate 32 and the second fixed plate 33, and the first fixed plate 32 is fixed. A spline gear 40 that meshes with the second gear 39 is axially supported between the plate 32 and the third fixed plate 35, and the spline gear 40 meshes with the drum gear 41 of the guide cylinder 29. Stirring rod drive device 1
When the stirring rod 18 is rotated by 9, the power is transmitted in the order of the first gear 32, the second gear 39, the spline gear 40, and then the drum gear 41, and the guide cylinder 29 is moved in the direction opposite to the rotation direction of the stirring rod 18. Rotate.

The lower end of the stirring rod 18 is arranged so as to protrude downward from the guide cylinder 29 even when the guide cylinder 29 is at the lowest position, and the grain at the bottom of the dry storage tank 3 is moved up through the inside of the guide cylinder 29 to guide it. It is discharged from the upper end of the cylinder 29 to the upper layer portion. With the configuration as described above, the stirring rod 18 is rotated to guide the grains accumulated on the bottom of the dry storage tank 3 to the guide cylinder 29.
Guided inside and moved upward in the guide cylinder 29 by the blades of the stirring rod 18, discharged at the upper end of the guide cylinder 29 and mixed with the newly stretched grain, and at the same time, the guide cylinder 29 is rotated to rotate the guide cylinder 2
9. Grain around 9 is also lifted while stirring, and dry storage tank 3
By thoroughly stirring the grains of (1), the stretched grains can be dried uniformly.

[0016]

As described above, according to the present invention, a guide cylinder for covering the stirring rod is provided on the outer circumference of the stirring rod of the stirrer, and the height of the guide cylinder is adjusted according to the accumulation state of the grain, and the grain at the bottom is adjusted. Are collected by the rotation of the stirring rod and transferred to the upper layer through the space between the guide cylinder and the stirring rod, so that the grains do not escape to the surroundings and rise reliably, exhibiting excellent stirring ability and The effect that the grain can be properly stirred up and down to be evenly dried.

[Brief description of drawings]

FIG. 1 is a front sectional view of a grain dry storage facility provided with a grain stirring device of the present invention.

FIG. 2 is a side sectional view of the same main part.

FIG. 3 is a partially omitted front view of the moving table of the present invention.

FIG. 4 is a side view of an essential part showing a stirring device according to an embodiment of the present invention.

5 is a plan view of an essential part taken along the line AA of FIG.

FIG. 6 is a side view of a main part taken along the line BB of FIG.

[Explanation of symbols]

 1 Grain Storage Warehouse 2 Partition Wall 3 Dry Storage Tank 4 Floorboard 5 Discharge Port 6 Discharge Rotation Conveyor 7 Hopper 8 Wind Guide 9 Beam 10 Monitoring Passage 11 Strain Conveyor 13 Spreading Device 14 Guide Rail 15 Moving Wheel 16 Mobile stand 17 Self-propelled device 18 Stirring bar 19 Stirring bar drive device 20 Moving motor 21 Rotation direction converter 22 Rotating shaft 23 Slide rail 24 Carriage 25 Carriage moving device 26 Drive motor 27 Stirring bar rotating shaft 28 First gear 29 Guide tube 30 Fixed Support 31 Slide Support 32 First Fixed Plate 33 Second Fixed Plate 34 Movable Plate 35 Third Fixed Plate 36 Flange 37 Rack 38 Pinion Gear 39 Second Gear 40 Spline Gear 41 Drum Gear

Claims (1)

[Claims] 1. A floor board of the grain dry storage tank is structured to have good air permeability, and a dry air is supplied into the tank from below the floor board, and a movable table is movable above the grain dry storage tank. An agitating rod with a lower end having a spiral blade on the outer periphery is suspended from the moving table inside the tank, and the agitating rod is reciprocated along the moving table and the moving table is moved to dry-store the grain. In a grain drying and storage facility for drying grains while stirring in a tank, the stirring rod is inserted into a vertically movable guide cylinder, and the upper and lower ends of the stirring rod project above and below the guide cylinder, respectively. A grain agitating device in a grain dry storage facility, characterized by: