JP7328618B2 - Grain dryer thrower - Google Patents

Description

TECHNICAL FIELD The present invention relates to a grain dryer that dries grains such as rice and wheat with hot air while being circulated inside the machine by a bucket elevator, and more particularly to a thrower for raising grains in the grain dryer.

Conventionally, in this type of grain dryer, a thrower may be provided so as to be connected to the grain discharge section above the bucket elevator (see Patent Document 1). The thrower is used, for example, when dried grains are lifted and conveyed to a temporary storage tank or the like at a high place by the built-in rotating blades.

By the way, when the amount of grain supplied from the bucket elevator is too large, or when relatively large straw scraps or foreign matter is mixed in the grain to be supplied, the inside of the thrower is clogged with grain, and the above-mentioned Rotating blades may stop. In such a case, it is necessary to completely discharge the grain clogged inside the thrower (see Patent Document 2). However, in order to discharge the grain clogged in the thrower, it is necessary to climb up to the top of the bucket elevator with a ladder, open the case cover in front of the thrower, and take out the grain inside into a container or bag. In addition to the dangerous work due to the high altitude, there is also the problem that a large amount of grain scatters and falls the moment the case cover is opened.

JP-A-8-233464 JP-A-58-157631

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a thrower for a grain dryer that can easily take out the clogged grain even when the inside of the thrower is clogged with grain, and prevents the grain from scattering. do.

In order to achieve the above object, the present invention places a grain storage tank on the upper part of a dryer body equipped with a hot air drying section, and throws the grain discharged from the bottom of the dryer body into the grain storage tank. In a grain dryer having a bucket elevator erected and a thrower connected to a grain discharge section above the bucket elevator,
A discharge port and a discharge gutter for conveying the grains discharged from the discharge port are provided at the lower part of the peripheral surface of the thrower case of the thrower, and an arcuate shutter is attached to the discharge port so that one end thereof can be opened and closed. The other end is bent downward to form a locking portion, and the shutter is embossed by the plate thickness of the peripheral surface of the thrower case so as to fit tightly into the opening forming the discharge port, A rotating shaft pivotally supported by the discharge gutter is horizontally provided below the shutter, and a shutter lever is provided so that one end thereof is fixed to the rotating shaft so as to be rotatable, and the shutter lever moves upward. When rotated, the shutter lever rotates the shutter to come into contact with the discharge port, and presses the other end of the shutter lever against the locking portion of the shutter to lock it. A turning lever is attached to the end of the turning shaft projecting from the discharge gutter so that when the shutter is turned downward , the end of the shutter lever and the engaging portion of the shutter are released and the shutter is released. It is characterized by being axially mounted .

A discharge pipe is preferably connected to the lower end of the discharge gutter.

According to the present invention, a discharge port and a discharge trough for conveying the grains discharged from the discharge port are provided at the lower part of the peripheral surface of the thrower case of the thrower, and the discharge port is equipped with an arc-shaped shutter which is pivotally provided at one end so as to be openable and closable. In addition, the other end of the shutter is formed as a locking portion, a rotating shaft pivotally supported by the discharge gutter is horizontally provided below the shutter, and one end of the shutter is fixed to the rotating shaft to rotate. A flexible shutter lever is provided, and when the shutter lever rotates upward, the shutter lever rotates the shutter to abut against the discharge port, and the other end of the shutter lever engages the shutter. When the shutter lever is rotated downward, the end of the shutter lever and the locking portion of the shutter are separated from each other to release the shutter. Since the rotating lever is pivotally attached to the end of the rotating shaft, when the thrower is clogged, the rotating lever and the shutter lever interlocking with the rotating lever rotate downward, thereby opening the shutter. When the thrower opens, the grain inside the thrower falls from the discharge port to the discharge trough and is discharged. After the grain inside the thrower is completely discharged, the rotary lever and the shutter lever are rotated to push up the shutter and close the discharge port. Grain can be collected safely and easily without having to climb up to open the case cover of the thrower and take out the grain inside.

If a discharge pipe is connected to the lower end of the discharge gutter, when the grain inside the thrower is discharged, the grain can be collected more easily and completely, and the grain will not be scattered.

The front view of the thrower device which shows the embodiment of this invention. FIG. 2 is a partially cut-away enlarged view of FIG. 1; 1 is a perspective view of a thrower device showing an embodiment of the present invention; FIG.

An embodiment of the present invention will be described.
1 is a front view of a thrower device showing an embodiment of the present invention, FIG. 2 is a partially cut-away enlarged view of FIG. 1, and FIG. 3 is a perspective view of the thrower device.
The thrower device 1 has a thrower case 2 containing four thrower blades 3, a thrower box 4 for supplying grain to the thrower case 2, and a thrower mounting body 5. - 特許庁The thrower mounting body 5 is formed in a parallel cross shape by a plurality of angle members. The back side of the thrower box 4 is fixed to the thrower mounting body 5, and a motor base 51 is attached to the lower part of the thrower mounting body 5. and the thrower motor 6 is mounted on the motor base 51 . Then, the angle of the thrower mounting body 5 is fixed to the flange portion (not shown) of the tank plate of the grain storage tank.

The back side of the thrower case 2 is integrally fixed to the front side of the thrower box 4 . Inside the thrower box 4, a screw 8 for conveying grain supplied from a grain inlet 7 provided on the upper surface of the thrower box 4 to the thrower case 2 is horizontally provided. The grain input port 7 is communicated with a discharge port (not shown) at the top of the bucket elevator of the grain dryer through a bellows hose (not shown) or the like. The screw 8 and the thrower blade 3 are arranged on the same axis and are rotated by a single rotary shaft (not shown) with a pulley (not shown) provided at the end of the rotary shaft. A motor pulley (not shown) of the thrower motor 6 is interlocked and connected by a V-belt (not shown).

Further, the lower half of the thrower box 4 is formed in a hopper shape, and the lower front side of the thrower box 4 and the lower back side of the thrower case 2 are provided with communication openings 9, respectively, and conveyed by the screw 8. Grain reaches the bottom of the thrower case 2 through the communication port 9, is thrown up by the thrower blades 3, and is raised together with air through a grain-raising cylinder 10 provided tangentially to the thrower case 2, and is raised in a high place. Arranged for transfer to a temporary holding tank or the like (not shown).

A discharge port 202 is provided in the lower part of the case peripheral surface 201 of the thrower case 2, and the arc-shaped shutter 11 is provided in the discharge port 202. As shown in FIG. One end of the shutter 11 is pivoted near the discharge port 202 by a hinge 12 so as to be freely opened and closed, and the other end is bent downward to form a locking portion 111 . Here, the shutter 11 is embossed by the thickness of the case peripheral surface 201 so as to fit tightly into the opening forming the discharge port 202, so that when the shutter 11 is closed, the The discharge port 202 does not cause unevenness on the inner peripheral surface of the case peripheral surface 201 , and the grain conveyed along the inner peripheral surface of the thrower case 2 by the thrower blades 3 does not become a resistance.

A discharge gutter 13 is attached to the lower portion of the case peripheral surface 201 so as to surround the discharge port 202 and the shutter 11 at its upper portion. The discharge gutter 13 has a hopper shape so that the shutter 11 can rotate downward about the hinge 12, and has an opening 131 at its lower end. A rotary shaft 14 is horizontally provided so as to be pivotally supported by the front wall and the rear wall of the discharge gutter 13 , and one end of a shutter lever 15 is pivotally attached to the rotary shaft 14 . When the rotating shaft 14 rotates and the shutter lever 15 rotates upward, the shutter lever 15 pushes the shutter 11 upward and rotates it about the hinge 12, and the shutter moves upward. The other end of the lever 15 is formed so as to press and lock the locking portion 111 of the shutter 11 , thereby causing the shutter 11 to close the discharge port 202 by closely contacting the discharge port 202 .

A front end portion of the rotating shaft 14 is provided so as to protrude from the front wall of the discharge gutter 13, and a rotating lever 16 is pivotally attached to the protruding end portion of the rotating shaft 14. An operation rope 17A is hung from one of both ends, and an operation rope 17B is hung from the other. Grips 171 are preferably attached to the lower ends of the operating ropes 17A and 17B. As a result, an operator on the floor can pull down the grip 171 of one of the operating ropes 17A and 17B to move the shutter 11 through the rotating lever 16, the rotating shaft 14 and the shutter lever 15. can be opened or closed.

A spring 19 is provided between a bracket 18 provided on the front wall of the discharge gutter 13 and the rotating lever 16 in order to press the shutter 11 against the discharge port 202 with a stronger biasing force to maintain the degree of close contact. pass the As a result, the shutter 11 can be reliably opened and closed by the operating ropes 17A and 17B, and the tip of the shutter lever 111 presses the engaging portion 111 of the shutter 11 when the shutter 11 is closed. As a result, the shutter 11 can be securely held in close contact with the discharge port 202 .

In the above-described embodiment, the rotating lever 16 is rotated by the operating ropes 17A and 17B to rotate the rotating shaft 14. However, the rotating shaft 14 can be rotated by an appropriate motor. It can also be rotated.

As described above, according to the embodiment of the present invention, when the thrower device 1 is clogged for some reason, the operator pulls down one of the operating ropes 17B against the spring 19 on the floor of the workshop. As a result, the rotating lever 16 and the rotating shaft 14 rotate to the left in the drawing, and the shutter lever 15 attached to the rotating shaft 14 also rotates to move to the hopper-like inclined surface of the discharge gutter 13 . Abut and stop. At this time, the locking state between the tip portion of the shutter lever 15 and the locking portion 111 of the shutter 11 is released, and the shutter 11 rotates downward about the hinge 12 and comes into contact with the shutter lever 15 to stop. .

When the shutter 11 is opened, the grains clogged in the thrower case 2 drop at once into the discharge gutter 13 from the discharge port 202 opened at the bottom of the thrower case 2 . At this time, if the tip of the vinyl hose 20 connected to the opening 131 at the lower end of the discharge gutter 13 is inserted into the grain loading port of the dryer main body, the grain clogged in the thrower case 2 can be removed manually. is collected in the grain dryer without

After the grain clogged in the thrower case 2 is completely discharged in this way, the operator then pulls down the other operating rope 17A against the spring 19. As shown in FIG. As a result, the rotating lever 16 and the rotating shaft 14 rotate to the right in the drawing, and the shutter lever 15 attached to the rotating shaft 14 also rotates, and the upper surface of the shutter lever 15 abuts on the shutter lever 15 . The shutter 11 is pushed up. At the same time that the shutter 11 rotates about the hinge 12 to close the discharge port 202 , the tip of the shutter lever 15 is locked to the locking portion 111 of the shutter 11 .

INDUSTRIAL APPLICABILITY The thrower of the grain dryer of the present invention eliminates the conventional clogging operation of the thrower at a high place, and the clogged grain can be collected safely and reliably, and is highly useful.

1 Thrower Device 2 Thrower Case 201 Case Peripheral Surface 202 Discharge Port 3 Thrower Blade 4 Thrower Box 5 Thrower Mounting Body 501 Motor Base
6 Thrower motor 7 Grain input port
8 Screw 9 Communication port 10 Grain raising tube 11 Shutter 12 Hinge 13 Discharge gutter 14 Rotating shaft 15 Shutter lever 16 Rotating lever 17A Operation rope 17B Operation rope 171 Grip 18 Bracket 19 Spring 20 Vinyl hose

Claims (2)

A grain storage tank is placed on the upper part of a dryer body equipped with a hot air drying section, and a bucket elevator is erected for charging grain discharged from the bottom of the dryer body into the grain storage tank, and the upper part of the bucket elevator. In the grain dryer provided with a thrower connected to the grain discharge part of the above, a discharge port and a discharge gutter for conveying the grain discharged from the discharge port are provided at the lower peripheral surface of the thrower case of the thrower, and the discharge port has An arc-shaped shutter having one end pivoted so as to be openable and closable is attached, and the other end of the shutter is bent downward to form a locking portion, and the shutter is tightly attached to the opening forming the discharge port. The peripheral surface of the thrower case is embossed by the thickness of the peripheral surface so as to fit therein . When the shutter lever rotates upward, the shutter lever rotates the shutter to abut on the discharge port and the other end of the shutter lever is moved to the above-mentioned position. The shutter is pressed against the locking portion of the shutter to be locked, and when the shutter lever rotates downward , the end of the shutter lever and the locking portion of the shutter are separated to release the shutter. A grain dryer, wherein a rotating lever is axially attached to the end of the rotating shaft protruding from the discharge gutter.
2. A thrower in a grain dryer according to claim 1, wherein a discharge pipe is connected to the lower end of said discharge gutter.

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