JPS5924858B2 - Husker sorting equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to a rice hulling sorting device.

In the past, oscillating sorters were used as a single machine because they were heavy, required a large installation area, and had high vibrations, but with recent demands for higher performance and automation, In the grain size sorting process of automatic hulling sorting equipment, etc., a oscillating sorting board with high sorting efficiency is used in place of ten thousand stones, and it is compact and three-dimensionally configured, and the grain circulation process of hulling sorting is integrated. Compound machines were manufactured and came into widespread use. The present invention includes a weight in the relationship between the sorting plate of the swing sorting machine and the pair of deweighing rolls of the hulling device. A balance sub-shaft that rotates in the opposite direction to the crankshaft is mounted parallel to the shaft to reduce strong vibrations caused by the heavy weight of the sorting board as much as possible. A high-performance device has been developed which rationally simplifies the interlocking rotation mechanism by linking the crankshaft with a suitable power transmission means and also ensures stable constant rotation of the crankshaft. This is what we intend to provide. Hereinafter, embodiments of the present invention will be described with reference to illustrative drawings.

In the figure, reference numeral 1 denotes a box-shaped machine, which has a pair of deweighing rolls 2 and 3 that perform a dehulling action based on the difference in surface speed, and grains are sorted by the difference in flight distance in the air current or the size of the particle suspension speed. A swing mechanism 5 is mounted on the upper part of the body 1 to swing a sorting board 4 mounted diagonally up and down.
This is a hulling and sorting device in which a lifting machine 6 is provided on one side to supply the mixed grains of paddy and brown rice flowing out of the machine body 1 to the sorting board 4, thereby integrally forming a grain circulation process. Next, a crankshaft 10 having a pair of weights 9, 9 fixed thereto is rotated in a direction opposite to the direction in which the eccentric part 8 protrudes from the fixed frames 1, 1 protruding from the upper side of the fuselage 1. Both ends of the shaft 10 are extended outside the frames 7, 7, respectively, and a driving pulley 11 is attached to one end and connected to a driving device (not shown), and the other end is A gear 12 and a pulley 13 are attached to the side, and
The middle part of the shaft 10 has a roughly F-shape and has a pair of arm rods 14, 1.
4, and a balance subshaft 15 is rotatably mounted on the fixed frame Tl□ parallel to the crankshaft 10, and the crankshaft 10 is rotatably mounted on the extension shaft of the subshaft 15. Gear 16 and pulley 1 for reverse rotation at the same rotational speed as ? The gear 16 meshes with the gear 12 to rotate, and the weights 9, 9 are attached to the middle part of the shaft 15.
A set of weights 18 are placed at positions symmetrical to the swing direction.
18 are each mounted on a shaft.

Next, there are a pair of scale removal rolls 2 and 3 provided inside the machine body 1, and their rotating shafts 19 and 20 have bearings 21 and 2, respectively.
1 to the outside of the machine body 1, and pulleys 22 and 23 are attached to each shaft end thereof, and each pulley 22 and 23 rotates the shuttle removal rolls 2 and 3 with a difference in peripheral speed. In order to do this, pulleys 22 and 23 of different diameters are respectively attached, and the pulley 22 is connected to the upper pulley 13, and the pulley 23 is connected to the upper pulley 17 by belts. . In addition, the swing mechanism 5 includes fulcrums 25a, 2b, 25c, which are provided at the front and back positions of the frame 24 that supports the sorting board 4 tilted in the diagonal direction, and the arm rods 14, 14, respectively.
25d are rotatably connected by a ring rod 26..., and the eccentric portion 8 of the crankshaft 10 and a fixed shaft 27 provided on the frame 24 are rotatably connected by an arm 28. A crank mechanism is formed, and the aforementioned balance subshaft 15 is mounted parallel to the crankshaft 10, and 29 and 30 are support parts on the other end side of the arm rod 14. Since the present invention has the above-described configuration, the crankshaft 10 and balance subshaft 15 of the rocking mechanism 5 rotate in opposite directions at the same rotational speed due to the rotation of the drive section of the device. 10 causes the upper sorting board 4 to reciprocate diagonally up and down by the arm 29 connected to the eccentric part 8.

Therefore, the mixed grains on the plate 4 are sorted and separated based on the difference in friction coefficient and specific gravity. On the other hand,
This sorting action generates vibrational energy due to the reciprocating movement of the board surface, and the vibrational force is transmitted to the arm 28. However, as described above, the present invention is designed to combine the weights 9, 9 of the crankshaft 10 and the balance subshaft 15. Since the weights 18 and 18 are disposed opposite each other, the rotation of the shafts 10 and 15 generates centrifugal forces of different phases, so that the vibration force of the arm 28 is balanced out. Become. Further, both the shafts 10, 1
5 is interlocked with the lower deweighing rolls 2 and 3, and has a difference in circumferential speed between them, and rotates in opposite directions, so that the unweighing action of raw paddy is carried out extremely smoothly, and the two rotations are The scale removal rolls 2 and 3 mounted on the shafts 19 and 20 have relatively large weights and rotate at high speed, so they act like flyholes and stably rotate the upper crankshaft 10, which rotates in conjunction with each other, at a constant speed. It has the effect of

Note that the positional relationship between the swing mechanism and the scale-removal roll is not limited to the arrangement shown in the exemplary diagram.

In this way, the rice hulling sorting device of the present invention has a counterbalance shaft that rotates in the opposite direction at the same rotational speed and is mounted parallel to the crankshaft on which the weight of the swinging mechanism is installed, so that the strain caused by the large weight of the sorting board is reduced. Vibration can be significantly reduced, and both shafts of the swinging mechanism and both rotating shafts equipped with the scale-removal rolls are linked so that they rotate in mutually opposite directions, and by an appropriate power transmission means. Therefore, the interlocking rotation mechanism can be rationally simplified, and the scale removal roll acts like a flyhole to ensure stable constant rotation of the crankshaft, resulting in high performance with less vibration, noise, and failure. This has the effect that a complex machine can be made compact and compact.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a main part of the device in cross section, and FIG. 2 is a perspective view showing the inside of the device with a portion cut away. 1... Airframe, 2, 3... De-weighing roll,
4... Sorting board, 5... Rocking mechanism, 6.
...Elevator, 7...Fixed frame, 8...
... Eccentric part, 9 ... Weight, 10 ... Crankshaft, 11 ... Drive pulley, 12 ...
...Gear, 13...Pulley, 14...Arm rod, 15...Balance subshaft, 16...
Gear, 17... Pulley, 18... Weight,
19, 20... Rotating shaft, 21... Bearing, 22, 23... Pulley, 24... Frame, 25a, 25b, 25c, 25d ······fulcrum,
26...Ring rod, 27...Fixed shaft,
28...Arm, 29...Support part, 3
0...Support part.

Claims (1)

[Claims] 1. In an apparatus equipped with a swinging mechanism that swings a sorting board diagonally up and down, and a pair of removing rolls each mounted on a rotating shaft mounted in parallel, a crank equipped with a weight of the swinging mechanism is provided. A balance sub-shaft that rotates in the opposite direction at the same rotational speed is mounted parallel to the shaft, so that both shafts of the swinging mechanism and both rotating shafts on which the removing rolls are mounted are interlocked and rotated in mutually opposite directions. A rice hulling sorting device connected to the husks by suitable power transmission means.