JPS61220772A - Seal apparatus of rotary grain sorting cylinder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a sealing device for a rotating grain sorting cylinder, and can be used in a huller, a grader, and the like.

Conventional technology Conventionally, the seal of this type of grain rotary sorting tube has an elastic seal between the end wall of the sorting tube, which rotates and sorts supplied grains, and the machine frame side that houses this rotary sorting tube. A sticker was pasted on the body.

Problems to be Solved by the Invention In a rotary sorting tube, an end wall is provided at the end of the rotary sorting tube, and an opening is formed in the center of the end wall to sort supplied grains. The supplied grains are sorted by repeating the ascending stroke and descending stroke by the rotation of this rotary sorting cylinder, but with the above configuration, the scattering of grains that occurs during this sorting process is Also, grains that are disturbed during feeding may cause the rotating sorting cylinder to deflect in the direction of the rotation axis.

Due to the deflection in the lateral direction, a gap is created between the opening and the machine frame side, and this gap tends to cause scattering of grains and wear of the seal.

Means for Solving the Problem] (7) The invention provides an end wall (2) of a rotary sorting cylinder (1) that rotates while supplying grains inside and a central opening of this end wall (2). (3) and fixed side wall plate on the machine frame (4) side (
5) Across the outer periphery.

A conical inclined surface (6) facing inward is provided on the outer peripheral edge of the side wall plate (5) on either side, and from the inner end of this inclined surface (6), the rotary sorting cylinder (1) A vertical surface (7) that is continuous in a direction substantially perpendicular to the center axis of rotation of
The other end wall (2) is provided with an intermediate portion bulging and curving inward in an arc shape, and this bulging surface is aligned with the vertical surface (7).
) and a bulge (8) that contacts the outside of the bulge (8).
) is interposed with an elastic seal (10) having a lip (9) that protrudes in a direction substantially perpendicular to the rotational center axis and contacts the inclined surface (6) opposite to the lip (9). This is the configuration of a sealing device for a rotating grain sorting tube.

Functions and Effects of the Invention In order to sort grains by rotating the rotary sorting cylinder (1), the supplied grains form a certain layer of grains in the rotary sorting cylinder (1), and this rotation Some of the grains are lifted in the rotational direction of the sorting cylinder (1) and a sorting action is performed, so that the end wall (2)
On the inside, some of the grains that have been lifted fall and scatter, and the grains that reach the vicinity of the opening (3) of the end wall (2) are separated by the end wall (2) and the machine frame (4) side. It has a protrusion (8) and a protrusion (9) between the fixed side wall plate (5) and sliding contact with the vertical surface (7) and the inclined surface (6) of the side wall plate (5). An elastic seal (10) is provided, the elastic seal (10)
) to guide grains that cause scattering into the rotary sorting cylinder (1).

During this sorting action, if the rotating sorting tube (1) oscillates in the direction of the rotation axis, the lip (9) of the elastic seal (10) is pressed by the inclined surface (6),
The bulge (8) bends toward the vertical surface (7) to increase the degree of adhesion, and due to the elasticity of the bulge (8), it bends toward the vertical surface (7).
7) and the inclined surface (6) in follow-up sliding contact. Further, when the rotary sorting cylinder (1) oscillates in the lateral direction, the bulge (8) is pressed by the vertical surface (7) and the bulge (8) is ) and the lip (9) are in follow-up sliding contact with the vertical surface (7) and the inclined surface (6).

As a result, even if the rotary sorting cylinder (1) oscillates in the axial and lateral directions, the bulge (8) of the elastic seal (10)
and the lip (9) connects the end wall (2) and the side wall plate (
5) It is difficult to form gaps between the grains and grains, which prevents grains from scattering and leaking due to disturbances during sorting or feeding.

Embodiment In FIGS. 1 to 3, (11) is a shedding device, and this shedding device (11) includes a device (11) located at the upper part of the machine body to receive and take off the paddy. A hopper (
12) is installed, and inside the paddy supply control valve (13), which is rotatably mounted on an opening/closing shaft, a paddy feed roll, and a pair of left and right take-off rolls (14) are mounted on a shaft. are doing.

(15) is a sorting shelf installed below the removal device (11);
(18) is a sorting air passage formed from the bottom of the sorting shelf (15) toward the forward tilted upper side, and the tip communicates with the suction winnow (17) via the wind barrel to sort out paddy hulls, dust, etc. It constitutes a suction air selection device (18).

At the bottom of the sorting air passage (1B), a rice receiving gutter (18) and a second gutter (20) are arranged in front of it.
9) has a spiral (21) and a sliding rice catcher (1) at the side end.
9), and the rolled rice thrower (22) is attached.

(23) is a grain rotary sorting device, and the removing device (11)
A machine frame (4) is formed to cover the rotary sorting cylinder (1), and a machine frame (4) is provided with a machine frame (4) for rotating the rotary sorting cylinder (1) around an axis in the front-rear direction. Drive roller (24)
(24) The rotary sorting cylinder (1) has a cylindrical shape with the rear end side of the machine frame (4) as the starting end side, and the inner peripheral surface has a recess (1) into which grains can fit. 25), and an end wall part (2) is provided at the starting end, and the inner circumferential surface is partitioned into a plurality of parts by axial partition plates at the terminal end, and a sorting paddy pumping chamber (2B) is formed.
(213)... is formed.

The end wall portion (2) has a vertical surface of an appropriate height at the connection portion with the inner circumferential surface of the rotary sorting cylinder (1), and a conical surface (27) with a downward slope protruding toward the inner central axis; This conical surface (
27) is folded back to form an opening edge wall (28) exposed inside the rotary sorting cylinder (1), and a vertical plane of an appropriate height is provided inward from the end of this opening edge wall (28) in the center. Aperture(
3).

Inside the rotary sorting tube (1) is a brown rice receiving trough (28) for receiving the sorted brown rice, which is oriented in the front-rear direction, with the front end supported by the machine frame (4) and the other end supported by the side wall plate (5). A helical screw (3o) is mounted on the bottom of the shaft.

(31) is a supply gutter, which is located almost in parallel with the brown rice receiving gutter (213) on the rotation rising side (a) and faces in the front-rear direction.The starting end side is supported by the machine frame (4), and the terminal side is the side wall plate (5)
A spiral (32) is mounted on the bottom, and the starting end is carried out by the sliding rice thrower (22) from the supply port (33) provided at the front of the machine frame (4). The terminal end is connected to the starting end of the rotary sorting cylinder (1) through a supply gutter, and this feed gutter (31) is designed to receive the mixed brown rice and paddy produced during the sorting operation. The area is also designed to accommodate the mixed rice area for reduction.

The side wall plate (5) is connected to the brown rice receiving trough (
29), supply gutter (31), and spiral (30) (3
2), etc., is removably attached to the rear of the machine frame (4), and is inserted into the rotary sorting tube (1) from the center opening (3) of the end wall (2). A vertical surface (7) that intervenes and continues in a direction substantially perpendicular to the rotational center axis of the rotary sorting cylinder (1) from the inner end of the conical inclined surface (6) whose diameter expands on the intervening end side. has been established.

The elastic seal (lO) has a fitting groove formed on the outer circumferential side, and this fitting groove is fitted into the center opening (3) of the end wall (2), and the middle part is arcuate inward. A bulging portion (8) that is curved to bring the bulging surface into contact with the outside of the vertical surface (7), and a peripheral edge of the bulging portion (8) that is substantially perpendicular to the rotation center axis. A lip (9) is provided which protrudes in the direction and comes into contact with the opposing inclined surface (6).

(34) is a brown rice discharge passage that is located at the front end of the machine frame (4) and discharges brown rice collected from the brown rice receiving gutter (2θ) downward; The brown rice is connected to a helical brown rice receiving trough (36) via a downstream shelf (35), and is transported out of the machine by a brown rice thrower (37).

(3B) is a paddy circulation gutter, which is inserted into the terminal end of the rotary sorting tube (1), and is inserted into the pumping chamber (2B) (2B)...
It is configured to receive the paddy pumped up by the hopper (12) and return it to the hopper (12).

The rice supplied to the hopper (12) flows down between a pair of rotating shedding rolls (14) (14), and the crushed rice is scraped out by the shedding rolls (14) (14).

The paddy is sorted by wind generated by the sorting air passage (1B) and the suction winnower (17), and dust and the like are discharged from the rice grain by the suction wind sorter (1B).

The wind-selected rice is collected in the rice receiving trough (19), carried to the supply trough (3) by the rice thrower (22), and once sent to the rear by the supply trough (31). was transferred to
It is continuously supplied from the supply gutter into the rotating rotating sorting tube (1) via drive rollers (24) (24)...

The supplied grains in the rotary sorting tube (1) are separated from the end wall (2
A grain layer is formed from the ) side, and the grain layer is transferred to the terminal side while repeating the sorting action of the upward sorting process of scooping up by the concavity (25) and the downward process of falling on the upward rotation (a) side of the rotating sorting cylinder (1). As the brown rice is being transferred, the brown rice scooped up by the recess (25) falls into the brown rice receiving trough (29) and is screwed up (
3o), passed through a brown rice discharge passageway (34) and a downstream shelf (35), is collected into a brown rice spiral receiving trough (36), and is carried out of the machine by a brown rice thrower (37).

The mixed rice for reduction, which is a mixture of brown rice and paddy generated during the sorting process, falls into the supply gutter (31), joins the supplied washed rice, and is supplied into the rotating sorting tube (1). Then, the re-sorting process is repeated.

In addition, the unhulled paddy is transferred to the terminal end of the rotary sorting cylinder (1) while sliding down the surface layer of the flowing grain layer, and is transferred to the pumping chamber (2B) (2e)... The paddy is pumped up to the paddy circulation gutter (38), and the paddy is returned to the joint hopper (12) for reprocessing before the hulling work is performed.

During this hulling operation, the end wall (2
) If the grains that have caused scattering in the vicinity fall onto the conical surface (27), they will be slid down into the rotary sorting tube (1) by this conical surface (27), and (28) and the inside of the inclined surface (6).
The bulge (8) and lip face the inner axis of 1) and bounce the scattered grains inward, and also slide into contact with the outside of the vertical surface (7) and the inclined surface (6). (9) The elastic seam (lO) with (9) prevents the scattered grains from flying out of the machine.

Also, if the rotating sorting tube (1) oscillates in the direction of the rotational axis, the elastic seal (lO) will cause the lip (9) to move against the inclined surface (
6), the bulge (8) is pressed against the vertical surface (
7) In addition to increasing the degree of adhesion by bending to the side, this bulge (8)
Due to its elasticity, it is brought into sliding contact with the vertical surface (7) and the inclined surface (6). Also, if the rotary sorting cylinder (1) oscillates in the lateral direction, the bulge (8) is pressed by the vertical surface (7), and the bulge (8) moves toward the inclined surface (6). While increasing the degree of adhesion between the lip (9) and the inclined surface (6) by bending to the side,
Due to the elasticity of this bulging portion (8), it follows and slides into contact with the vertical surface (7) and the inclined surface (6) to prevent grains scattered near the end wall portion (2) from scattering outside the machine. I can do it.

In addition, Fig. 4 shows the case where the side wall plate (5) for attaching the elastic seal (10) to the machine frame (4) side is installed, contrary to the above example, and the end wall part (2) is A vertical surface of an appropriate height is provided at the connection part with the inner circumferential surface of the single-rotation sorting cylinder (1), and a conical inclined surface (6) protruding toward the inner central axis is provided. A vertical surface (7) that continues from the end in the direction of the rotation center axis of the rotary sorting cylinder (1) is provided, and an opening (3) is provided in the center.
) has been established.

The side wall plate (5) has a conical wall surface (5) that is protruded toward the opening (3) and has a conical shape with an enlarged diameter on the protruding end side.
38) and this 17) circular 1m-shaped wall surface (39)
A vertical surface is provided from the inner end to the outside.

The elastic seal (10) has a fitting groove formed on the inner circumferential side,
This fitting groove is fitted into the vertical surface of the side wall plate (5), the bulge (8) is brought into contact with the outside of the vertical surface (7) of the end wall (2), and the lip (9) is provided in contact with the outside of the inclined surface (6).

With this, the same effects as in the above example can be obtained.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a partial side sectional view, FIG. 32 is a side sectional view, FIG. 3 is a partially sectional front view, and FIG. 4 is another embodiment. It is a side sectional view of a part showing. In the figure, symbol (1) is the rotary sorting tube, (2) is the end wall, (
3) is the opening, (4) is the machine frame, (5) is the side wall plate, (6)
is an inclined surface, (7) is a vertical surface, (8) is a bulge, (9)
indicates the lip and (10) indicates the elastic seal.

Claims (1)

[Claims] An end wall (2) of a rotary sorting cylinder (1) that rotates while supplying grains to the inside, and a wall fixed to the machine frame (4) located at the center opening (3) of this end wall (2). The outer peripheral edge of the side wall plate (5) on either side is provided with a conical inclined surface (6) facing inward, extending between the outer peripheral edge of the side wall plate (5) and the outer peripheral edge of the side wall plate (5) on either side. The rotary sorting cylinder (
A vertical surface (7) that continues in a direction substantially perpendicular to the rotation center axis of 1) is provided, and the end wall portion (2) on the other side is provided with:
A bulging portion (8) whose intermediate portion is curved inward in an arcuate manner so that the bulging surface contacts the outside of the vertical surface (7); The inclined surface (6
) and a lip (9) in contact with the elastic seal (1
0) A sealing device for a grain rotary sorting tube.