JPS6131009B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flat-bed silo, and more particularly to a flat-bed silo unloading device equipped with a sweeper for scraping off accumulated bulk materials.

Examples of the basic structure of conventional flat bed silos are shown in 1 to 3.
This will be explained using figures. There is a circular flat plate 1 at the base,
A conical body 2 provided above this, a hopper 3 provided below this conical body 2, a delivery conveyor 4 recessed in a radial direction from this hopper 3, and a silociel 5 installed concentrically with the conical body 2, A pull ring 6 rotatably provided around the conical body 2, a ring driving portion 7 provided on the flat bed board 1 so as to engage with the outer periphery of the pull ring 6, and a pull ring so as to be in sliding contact with the flat bed board 1. 6, a bendable sweeper 8 connected to the inside of the silo shell 5, an input conveyor 9 constructed across the inside and outside of the silo shell 5, the cone 2, the discharge conveyor 4, the ring drive unit 7, and the input conveyor 9.
and a control panel 10 electrically connected to each.

The cone body 2 is located at the inclined middle part of the cone cover 11.
A plurality of breakers 12 are provided which can be opened and closed via means such as a cylinder device.

The hopper 3 and the delivery conveyor 4 are provided with conveyor grooves 13 radially communicating with each other from the hopper 3 on the surface of the flat bed board 1, and a delivery conveyor 14 extending from the hopper 3 to the outside of the flat bed board 1 is recessed in one of them. In the remaining conveyor groove 13, there is a collection conveyor 15 connected to the hopper 3.
are recessed therein, and a grid cover 16 is provided on the upper surface of each conveyor groove 13.

The silociel 5 has pillars 17 arranged concentrically with the cone body 2 near the outer periphery of the flat bed board 1.
The shell 1 is placed above the flatbed 1 through this support 17.
Erection 8.

The pull ring 6 has a plurality of arcuate segments on the outside of the upper and lower guide rails 19, which are composed of a circular lower guide rail 19A and a circular upper guide rail 19B of the shell 18, which are provided opposite to each other on the flat bed board 1. 20 and fan-shaped segments 21 interposed at regular intervals between the segments 20 are connected to form a ring shape. and the segments 20, 21
A guide shaft 22 is provided vertically protruding from the connecting portion of
Upper and lower guide rails 1 are provided at both upper and lower ends of this guide shaft 22.
A guide roller 23 which is in rolling contact with 9 is rotatably mounted. Further, near the ends of the segments 20 and 21, brackets 24 are provided protruding downward to support the running rollers 2.
Pin 5 so that it can rotate freely.

The ring drive unit 7 meshes a rack cut into the outer periphery of the pull ring 6 with a transmission gear 27 that is interlocked with a prime mover 26.

The sweeper 8 connects buckets 28 which are open on one side on the flat bed board 1 so as to be flexible with the openings aligned in one direction.
1, and the other end of the connected bucket 28 is made a free end.

The operation is such that the loose materials are introduced into the silo shell 5 by the input conveyor 9 and deposited on the flat bed plate 1. When the sweeper 8 is slid by the pull ring 6 that rotates via the ring drive device 7, the free end of the sliding sweeper 8 moves to the center of the silo, scraping off accumulated loose materials and feeding them into the delivery conveyor 4. do. The discharging conveyor 4 carries out the input bulk materials to the outside of the silo.

However, when the stored bulk materials become sticky, the sweep bucket 28 constituting the sweeper 8 uses its scraping piece 28A to scrape off the bulk materials that try to adhere to the flat bed board 1, and removes the bulk materials from the storage box body 28B. When the storage box 28B is accommodated, loose objects adhere to the inner surface of the storage box body 28B, reducing the storage capacity and the conveyance capacity. In addition, the front and rear pin connecting portions 28C and 28D have the disadvantage that attached loose objects are compressed and fixed, making it impossible to bend the buckets 28 with each other, making it impossible to effectively utilize the complicated structure.

In view of the above-mentioned drawbacks, the present invention provides a dispensing device for a flat-bed silo, which is equipped with a sweeper that can continue scraping off sticky loose materials without any problem even if the sticky loose materials adhere to it, and has a simple structure. The purpose is to provide.

This invention provides a rotatable pull ring on a flat bed board, connects one end of a curved sweeper base to the pull ring, and provides a sliding shoe at a free end of the sweeper base that slides on the flat bed board. This is a flat-bed silo dispensing device characterized in that a scraping piece is provided in the intermediate portion thereof, the lower end of which is inclined toward the connected side.

The structure of this invention will be explained with reference to drawings of embodiments. FIG. 4 is a side view of a sweeper according to an embodiment of the present invention, FIG. 5 is a front view of FIG. 4, and FIG. 6 is a partially sectional front view of a silo equipped with a dispensing device of the present invention. , FIG. 7 is a plan view of FIG. 6.

In FIGS. 4 to 7, from the guide rail 19,
A connecting piece 31 is formed at one end of a fixedly curved sweeper base 30 with a slightly small radius of curvature, and a sliding shoe 32 is fixed to the lower surface of the other end. A sweeper 34 is provided on the curved inner surface of the sweeper base 30 with a plurality of scraping pieces 33 whose lower edges are inclined toward the connecting piece 31 side than the upper edges thereof and protrude at approximately equal intervals. The connecting piece 31 of the sweeper 34 is connected to the fan-shaped segment 21 of the pull ring 6 with a pin or the like so as to be flexible, and the lower edges of the sliding shoe 32 and the scraping piece 33 are brought into contact with the flat floor board 1.

Next, the effect of the above configuration will be explained.

When the pull ring 6 is rotated in the direction of arrow F in FIG. 7, the sweeper 34 wipes the sliding shoe 32 and the scraping piece 33 in contact with the flat bed board 1. sweeper 3
4, the rotation trajectory of the sliding shoe 32 moves toward the center of the flat bed board 1 due to sliding friction resistance, and the force of this approach causes the sweeper base 30 to approach the accumulation of loose materials. Concentrate on the scraping piece 33 and bite the scraping piece 33 into the accumulated pile against the adhesive force of the bulk material.

The curved sweeper base 30 has the scraping piece 33 on the free end side closer to the flat plate 1 than the scraping piece 33 on the connecting end side.
The scraping piece 3 on the free end should be placed close to the center of the
No. 3 scrapes off the accumulated accumulation no matter how small it is, and as the diameter of the accumulated accumulation increases, the number of scraping pieces 33 that scrape off the accumulated accumulation increases. In addition, the primary scooping angle of the scraping piece 33 is formed by the mounting slope, but the secondary scooping angle is
It is synthesized according to the curvature of the sweeper base 30 and the angle formed between the sweeper base 30 and the radiation from the center of the flatbed 1. As the sliding shoe 32 approaches the center of the flat bed board 1, the secondary scooping angle becomes inclined with respect to the radiation, thereby making it possible to dig in more reliably. The loose material from which the scraping piece 33 has been scraped off is scraped up by the sweeper base 30 and thrown into the delivery conveyor 4. The excess loose material passes over the scraping piece 33, overflows behind it, and is scraped up by the succeeding sweeper base 30.

Conventional sweeper 8 whose middle part bends freely
This sweeper 34 with a fixed curvature compared to
Even if the scraping piece 33 is protruded, its direction is stable, and the scraping piece 33 bites into the pile of bulk materials against viscous resistance, so that reliable scraping can be performed and the structure is It is also easy to use, and even if sticky substances adhere to it, it will not be affected by it.

The slope of the scraping piece is preferably 60 degrees inward or outward, and it is convenient if the overall length of the sweeper 34 is smaller than the radius of the guide rail 19.

As explained above, in the present invention, a scraping piece is provided in an inclined manner on the curved sweeper base facing the cone 2, and this sweeper base is connected to a pull ring that rotates a flat plate, so that the scraping piece Since it is designed to feed the picked bulk materials to the dispensing conveyor in appropriate amounts, even if the bulk materials exhibit stickiness, the adhesion can be eliminated, making it possible to create a flat-bed silo that can dispense the appropriate amount. It is.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an example of a conventional flatbed silo, Fig. 2 is a front view showing the left half of the section taken along arrow A-A in Fig. 1, Fig. 3 is a perspective view of a conventional bucket silo, and Fig. 4 is a perspective view of a conventional bucket silo. The figures are a side view of a sweeper according to an embodiment of the present invention, FIG. 5 is a front view of FIG. 4, FIG. FIG. 7 is a plan view. 1: Flat bed board, 6: Pull ring, 30: Sweeper base, 31: Connecting piece, 32: Sliding shoe, 33: Scraping piece.

Claims (1)

[Claims] 1. A circular flat bed board in which a carry-out conveyor is embedded in a radial direction from the center, a pull ring rotatably provided along a circular guide rail provided concentrically with the circular flat bed board, and the inside of the circular guide rail. In a flat bed silo equipped with a sweeper whose one end is bendably connected to a pull ring so as to be in contact with a circular flat bed, one end of a rigid sweeper base curved inward of the circular flat bed is connected to the pull ring. , characterized in that scraping pieces with scooping angles are protruded and fixed at intervals on the inside of the curve from the free end of the sweeper base toward the connecting end, and a sliding shoe is fixed to the lower surface of the free end of the sweeper base. Unloading device for flat bed silo.