JPS6227222Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a drive device for derolling in a huller.

In other words, in this type of de-rolling, when the main rubber roll and the secondary rubber roll, which have different rotations, are brought into contact or when the paddy is passed between both rolls, the secondary rubber roll, which rotates slowly, is affected by the action of rotating along with the main rubber roll. When the secondary rubber roll side is forced to rotate faster than the drive belt, and in this state the secondary rubber roll is pressurized against the main rubber roll side, the roll pressing force increases, causing overload and overload on various parts. Problems such as difficulty in adjusting pressure will arise.

The present invention is designed to prevent such problems from occurring, and is intended to provide a suitable implementation in which when both rolls come into contact, the secondary rubber roll acts in a direction away from the main rubber roll.

Next, the embodiment shown in the drawings will be described.

FIG. 1 shows a side view of the removal section in the huller, and shows the removal section 8 connected in communication with the lower part of the supply tank 7.
Inside, a main rubber roll 2 and a sub-rubber roll 5 are arranged side by side, and a main shaft 9, one end of which is fitted and fixed to the main rubber roll 2, is attached to a support frame 10 on the side with bearings 11, 11.
A main shaft pulley 1 and a transmission pulley 12 are fitted and fixed to the other end of the main shaft 9, and a drive belt 15 is wound around the pulley 14 of a motor 13 and the transmission pulley 12. .

Further, inside the support frame 10, the base of the arm 3 having a boss portion at the tip is rotatably connected to a fixed pivot pin 21, and the sub-rubber roll 5
The middle part of the countershaft 16 fitted and fixed to the boss part 3
A is rotatably mounted on a shaft through bearings 17, 17, and a countershaft pulley 4 having a slightly larger diameter than the main shaft pulley 1 is fitted and fixed to the outer end of the countershaft 16,
The tip of a piston rod 19 extending from an air cylinder 18 installed on the support frame 10 is connected to the boss portion 3a via a pin 20, and the air cylinder 18 adjusts the pressure of the secondary rubber roll 5 with respect to the main rubber roll 2. It is installed and configured so as to be brought into pressure contact.

Intermediate pulleys 22 and 23 supported by a support frame 10 are mounted on upper and lower positions on the outer side of the subshaft pulley 4 on the opposite side of the main shaft pulley 1, and the main shaft pulley 1, subshaft pulley 4, and both A single conductive belt 6 is wound around the intermediate pulleys 22 and 23, and as shown in FIGS. 1 and 3, the conductive belt 6 extends from above the subshaft pulley 4 to below the main shaft pulley 1. At the same time, the part of the transmission belt 6 is connected to the main shaft pulley 1.
It is installed and configured so that it can be rotated to the side.

Therefore, when the main shaft pulley 1 is rotated by starting the motor 13, the transmission belt 6 is rotated, and the main shaft pulley 1 is rotated as shown by arrow A, and the subshaft pulley 4 is rotated as shown by arrow B. Both rubber rolls 2 and 5 rotate in reverse, but with the sub-rubber roll 5 being pressurized towards the main rubber roll 2 by the air cylinder 18, it extends between the approaching pulleys 1 and 4 and is pulled towards the main pulley 1. The combined force of the transmission belt 6, which rotates as if it were rotating, presses and biases the subshaft pulley 4 away from the main shaft pulley 1, that is, as shown by arrow C, and therefore biases it toward the main rubber roll 2. The pressing force of the sub-rubber roll 5 is reduced.

Therefore, when the two rolls 2 and 5 with different rotations are brought into contact with each other, or when the paddy is passed between the two rolls 2 and 5, the secondary rubber roll 5, which rotates slowly, becomes the main rubber roll 5.
Due to the rotational action, a force is exerted on the secondary shaft pulley 4 to rotate faster than the transmission belt 6, but as mentioned above, the secondary rubber roll 5 is pressed by the engagement force of the transmission belt 6, and the roll pressing force is reduced. Ru.

In this way, the present invention is equipped with a coaxial main rubber roll that is rotated quickly by the main shaft pulley, and a coaxial sub-rubber roll that is movably supported by an arm and rotated slowly by the sub-shaft pulley so that it can be moved toward and away from the main shaft. A single transmission belt is wound around the pulley and sub-shaft pulley so that the combined force of the belt presses the sub-shaft pulley away from the main shaft pulley, so the main rubber roll and sub-rubber roll have different rotations. When the rubber rolls are in contact with each other or when the paddy is passed between the two rolls, the pressing force of the rolls can be reduced by applying pressure to the auxiliary rubber rolls using the combined force of the conduction belt, which will solve the problems mentioned above. It has the advantage of being able to solve problems and can be implemented suitably.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a side view of a removing section in a huller, FIG. 2 is a plan sectional view thereof, and FIG. 3 is a part of FIG. 1. 1...Main shaft pulley, 2...Main rubber roll, 3
...Arm, 4...Subshaft pulley, 5...Sub-rubber roll, 6...Transmission belt.

Claims (1)

[Scope of utility model registration request] The coaxial main rubber roll is rotated quickly by the main shaft pulley, and the coaxial sub-rubber roll is movably supported by an arm and rotated slowly by the sub-shaft pulley. 1. A drive device for derolling in a rice husking machine, characterized in that a single transmission belt is wound around the subshaft pulley so that the applied force of the belt presses and biases the subshaft pulley in a direction away from the main shaft pulley.