JPS5823794Y2 - Dryer feed roll - Google Patents

Description

[Detailed description of the invention] The present invention is a grain ventilation dryer in which a storage chamber, a drying chamber, and a grain collection chamber are formed in order from top θ to bottom. It is related to.

Conventionally, this type of feed roll has a blade installed linearly in the axial direction on the rotating shaft, and such a blade is
For example, four blades are arranged at equal intervals on the circumference of the rotating shaft, and when the blades rotate together with the rotating shaft, the grains are scraped out by the blades and delivered only in the circumferential direction.

Therefore, the spacing between the blades is relatively narrow, and ■
There were cases where the tip of the letter-shaped tip became clogged with debris such as straw, blocking the outflow of grain.

In addition, in a dryer, in a structure in which the grain is fed vertically from the upper drying chamber to the lower grain collecting chamber using a feed roll, the roll downstream grain plate covers the area directly below the upper blade of the roll and moves slightly upward on the opposite side. It is formed in a curved manner.

Therefore, when the blade directs the grain downward, the grain is pressed between the blade and the grain plate downstream of the roll, and the load at that time acts on the delivery roll. Such a load occurs all at once over the entire roll, and occurs intermittently each time the four blades are lowered.

Furthermore, in dryers, there is a storage chamber above the drying chamber.
A large amount of grain is stored here in order to be sequentially poured into the drying chamber, and a large load is thereby applied to the grain in the drying chamber.

Therefore, the sliding resistance of the grain on the walls of the drying room etc. is very large and there are differences in each part.
As described above, the feed roll feeds out the grain only in the circumferential direction over the entire axial direction, and therefore cannot deal with the above-mentioned difference in sliding resistance of the grain.

Therefore, the grains do not flow down uniformly in the drying chamber, resulting in uneven drying 44.

This invention was proposed in view of these circumstances.
The purpose is to provide a drying chamber feed roll that uniformizes the flow of grain in the drying chamber, prevents the blades of the feed roll from clogging with foreign matter, and reduces the load on the feed roll. There is a particular thing.

For this purpose, the dryer of the present invention has an unwinding outlet-Luha, which sequentially forms a storage chamber, a drying chamber, and a grain collecting chamber from top to bottom, and a rolled upstream grain plate and a rolled downstream grain plate connected to the lower part of the drying chamber. A feed-out port is formed with a feed-out port, and a feed-out roll is disposed in the longitudinal direction of the feed-out port, and the rotation axis of the feed-out roll is connected to a protrusion formed on the grain plate upstream of the roll and a protrusion formed on the grain plate downstream of the roll. The rotary shaft is pivotally supported while maintaining a predetermined relative position between the two parts, and the peripheral surface of this rotating shaft has a function of feeding out the grain in the circumferential direction and a transfer function of transporting the grain inward in the axial direction from both ends. The present invention is characterized in that left and right grades formed in a gentle spiral are attached, and the number of blades is two or less.

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

In FIG. 1, inside the housing of the dryer indicated by reference numeral 1, there is a storage chamber 2 for storing grains to be dried;
A plurality of drying chambers 3 connected under each drying chamber 3 and a grain collection chamber 4 connected under each drying chamber 3 are formed in order from the top, and a feed roll 5 is provided between these drying chambers 3 and grain collection chambers 4. By the action of the feed rolls 5, the grains in the storage chamber 2 are intermittently passed through the drying chamber 3 at a predetermined flow rate and flowed down into the grain collection chamber 4.

Further, the grain in the grain collection chamber 4 is temporarily taken out of the housing 1 by a screw conveyor 6 provided at the bottom thereof, and
Thereafter, it is lifted up by an elevator 7 and returned to the storage chamber 2 via an equalizer 8.

Each drying chamber 3 has a ventilation plate 1 between the hot air chamber 9 and the exhaust chamber 10.
The hot air in the hot air chamber 9 crosses the drying chamber 3 and flows into the exhaust chamber 10, thereby drying the grains flowing down inside the drying chamber 3.

As detailed in FIG. 2, ventilation plates 1 on both sides of the drying chamber 30
1, a roll upstream grain plate 12 is connected in an inclined manner, and a roll downstream grain plate 13 formed in a substantially square shape is connected to the bottom of the other side, forming a funnel-shaped feeding opening 14. A feed roll 5 is provided in the longitudinal direction between these flow grain plates 12,13.

The feed roll 5 is suitably 1. It consists of a rotating shaft 15 that rotates in the direction of the arrow by power from a drive source, and one blade 16 that is spirally wound around the circumference of this rotating shaft 150.

By the way, the roll upstream grain plate 12 covers the upper part of the feed roll 5, and the line connecting the tip of the protruding edge 12a at the lower end and the upper part of the rotating shaft 15 (angle θ1 with the horizontal line) is approximately the ammonium angle of the grain. It is designed to match or be smaller than that.

- After covering the lower blade of the feed roll 5, the roll downstream grain plate 13 is slightly warped upward, and the line connecting the tip of the warped protrusion 13a and the lower part of the rotating shaft 15 (horizontal line) The angle θ1) is approximately equal to or smaller than the ammonium angle of the grain, thereby preventing dripping of the grain from the outlet 14.

Further, as detailed in FIG. 3, one blade 16 in the feed roll 5 is divided into two parts in the longitudinal direction, with the left and right blade parts 16a and 16b loosely moving in opposite directions with the center part 16c as the border. It's a twist.

The left blade portion 16a forms a drying chamber 3.

For example, the front housing wall 1a is also twisted gently to transfer the grain inward, so that the right blade portion 16b, which is twisted in the opposite direction, transfers grain from the rear housing wall 16 in the same way. It becomes like being transported inward.

Since the present invention has such a configuration, the spiral blade 1 is formed by rotating the rotation shaft 15 of the feed roll 50.
6 moves up and down sequentially and continuously from both ends in the axial direction toward the center, and in this way, the grains in the drying chamber 3 are continuously fed little by little in the blade circumferential direction and are delivered to the grain collecting chamber 4.

At this time, the blade 16 is fed inward from both ends using a specific loose spiral shape, so that the grains in the vicinity of the oozing tubes 1a and lb before and after the drying chamber 30 are fed toward the center and fed out. The grain in the drying chamber 3 becomes roughly uniform, and the sliding resistance is reduced in that part where the sliding resistance is particularly high.
The grain flows down to the grain collection room 4.

Note that the present invention is not limited to the above-mentioned embodiments; for example, as shown in FIG. 13, the remaining grains on the roll downstream grain plate 13 can be cleaned.

Further, the blade 16 may be welded to the rotating shaft 15 in the bell direction as shown in FIG.

Further, the number of blades 16 may be not limited to one, but may be two, or may be divided into four parts in the axial direction, and the direction of the twist 7j may be alternately changed.

At this time, if the force of one part of the blade is connected to the other part, the grains fed in the axial direction may collide with each other, which is undesirable. In this case, it is sufficient to shift the phase.

As described above, according to the present invention, the feed roll is pivotally supported with its rotating shaft maintaining a predetermined relative position on the ridge formed on the grain plate upstream of the roll and the protrusion formed on the grain plate downstream of the roll. This prevents the grains in the drying room from being washed away into the grain collecting room with the odor horn.

In addition, the flade provided on the circumferential surface of the rotating shaft of the feeding roll is
It has the function of feeding out the grain in the circumferential direction and the transfer function of transferring the grain inward in the axial direction from both ends, and is formed in a gentle spiral shape, so when the feeding roll rotates, it is transferred from the feeding opening. Grain is fed out almost evenly and flows down to the grain collection room, allowing for even drying. Grain on both sides of the feeding roll is fed out in the circumferential direction while being transferred inward in the axial direction, so that it can dry evenly on the wall surface. This reduces the sliding resistance and the load on the feed roll, resulting in smooth feed.

Furthermore, since the blades of the feed roll are composed of two or less blades, the spacing between the blades is wide, and the grains are scraped off without clogging, and the grains are fed out uniformly.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing an example of a dryer to which the present invention is applied, FIG. FIG. 5 is a front view and a sectional view showing other embodiments, respectively. 1...Housing, la, 1b...Housing wall, 2...Storage room, 3...Drying room, 4...Grain collection Chamber, 5...Feeding roll, 6...Screw conveyor, 7...
・Elevator, 8... Equalizing device, 9...
・Hot air room, 10...Exhaust room, 11...
Ventilation plate, 12... Roll upstream grain plate, 13...
...Roll downstream grain plate, 12a... ridge, 13
a... Protrusion, 14... Feeding port, 15.
...Rotating shaft, 16...Blade, 16a
, 16b...Blade part, 16c...
Center part, 17...edge piece.

Claims (1)

[Scope of utility model registration request] A storage room, a drying room, and a grain collecting room are formed in order from top to bottom, and a roll downstream grain board and a roll downstream grain board connected to the lower part of the drying room form a feed-out port, and the grain is fed in the longitudinal direction of the feed-out port. - a roll is disposed, and the feed roll maintains its rotating shaft in a predetermined relationship position between the protrusion formed on the grain plate upstream of the roll and the protrusion formed on the grain plate downstream of the roll. The peripheral surface of this rotating shaft has a function to feed the grain in the circumferential direction and a transfer function to transport the grain inward in the axial direction from both ends, and the left and right sides are formed in a gentle spiral. The feed roll of the dry tank machine is characterized by attaching the blades, reducing the number of blades to 2 or less, and cutting at ℃.