JPS6113465Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a storage discharge device in a silo or the like.

For example, silos with screw feeders have been put into practical use as large-diameter silos or silos for stored items that are difficult to drain, but these have the following drawbacks.

1. Since a large storage pressure acts on the entire surface of the screw, the frictional force between the screw and the stored material increases, and the shaft power required to rotate the screw increases.

2 Similarly, the power required to run and rotate the screw increases.

Therefore, the present invention provides a stored material discharging device for a silo or the like that solves this problem.The feature is that a recess is formed in the center of the bottom of the storage space of the silo or the like; A rotating body is provided above so as to be freely rotatable in a horizontal direction, and a cover is provided whose base end is fixed to the rotating body and whose distal end extends along the bottom of the storage space to near the outer periphery of the storage space, and the cover is rotated as described above. A rotating device is provided to rotate around the body, the front surface of the cover in the direction of movement is opened, and a screw feeder is disposed within the cover.
A feeding drive device is provided in the rotary body to feed the stored material that has entered the cover into the recess by rotating the screw feeder, and a stored material conveying device is provided that extends from the lower part of the recess to a predetermined location. . According to the configuration of the present invention,
There is no large storage pressure acting on the Skuriufida,
The driving force of the feeding drive device for rotating the screw feeder can be small, and the driving force of the rotating device for rotating the cover can also be small.

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 to 3. This embodiment relates to a device for discharging stored materials 2 such as grains in a silo 1, in which 3 is a tapered recess formed in the center of a base 4, and 5 is disposed in the center of the recess 3 via a support member 6. A fixed base 7 is rotatably disposed on the fixed base 5, and a base 8 is fixed to the box 7, and the tip is attached to the outer peripheral edge of the silo 1 along the bottom surface 9. It is a cover that extends to the vicinity, and the bottom plate part 8
A, and an arc-shaped cover main body 8B having one side edge fixed to one side edge of the bottom plate part 8A and the other edge extending above the other side edge of the bottom plate part 8A, and the direction in which the cover 8 moves The front face 10 of A is open. 1
1 is a wheel rotatably supported by a bearing block 13 disposed in a plurality of notches 12 formed in the bottom plate portion 8A, and passes through the notches 12 and comes into contact with the bottom surface 9; 14 is a tip of the cover 8; 15 is a support disposed between the bottom plate portion 8A and the cover body 8B; A rod 16 is a screw feeder rotatably disposed within the cover 8, 17 is an arcuate plate disposed along the screw feeder 16 between the bottom plate portion 8A and the cover main body 8B, and 18 is a base end of the screw feeder 16. Large gear 1 fixed to
A feed drive device 21 rotates the screw feeder 8 by rotating a small gear 20 that meshes with the small gear 9, thereby feeding the stored material 2 that has entered the cover 8 into the recess 3. A rubber exclusion plate is fixed to the edge and abuts on the bottom surface 9; 22 is a conveying passage extending horizontally from a position below the recess 3 in the base 4 to an appropriate position outward; 23 is disposed within the conveying passage 22; The stored material conveyor 24 is a stored material supply conveyor for supplying the stored material 2 into the silo 1.

The procedure for discharging the stored material 2 will be explained based on the above configuration. When the feeding drive device 18 is activated to rotate the screw feeder 16 and the rotation device 14 is activated, the cover 8 is rotated in the direction of arrow A.
The stored material 2 that has entered the cover 8 is fed into the recess 3 by the screw feeder 16. The stored items 2 that have entered this recess 3 fall onto a conveyor 23 and are conveyed by this conveyor 23 to a predetermined location. What is important here is that since the screw feeder 16 is covered with the cover 8, the pressure of the stored material 2 does not directly act on the screw feeder 16. Also, when the cover 8 is rotated, the stored items 2 on the front surface 10 of the cover are
Since the cover is fed into the recess 3, the pressure P _h ¹ acting on the cover front surface 10 becomes smaller, and the cover 8 is rotated in the direction of arrow A by the pressures P _h and P _v acting on the cover body 8B. A driving force is generated to try to do so. In reality, it is difficult to rotate the cover 8 using only this propulsive force due to friction between various parts, but it is possible to rotate the cover 8 in the direction of arrow A simply by auxiliary operation of the rotation device 14. can.

In the above embodiment, the cover main body 8B has an arc shape, but the cover body 8B is not limited to this, and a flat inclined plate as shown in FIG. 4 may be used. In short, any material that generates pressure P _h is sufficient. Further, although the case where only one cover 8 is used has been described as an example, it is also possible to use two or three or more covers. As the number increases, the effect is that the discharge capacity improves accordingly.

As described above, according to the storage discharge device for a silo or the like of the present invention, the screw feeder is disposed within the cover, and the pressure of the stored materials does not act directly on the screw feeder. Therefore, the driving force of the feeding drive device for rotating the screw feeder can be small. Furthermore, the pressure of the stored material acting on the cover can be used as a driving force for the cover, and the drive of the rotating device for rotating the cover can be small.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a view taken in the direction of the − arrow in FIG. 1, and FIG. 3 is a view taken in the direction of the − arrow in FIG. 1. It is. Fourth
The figure is a cross-sectional view showing another embodiment of the present invention. 1...Silo, 2...Storage, 3...Recess, 7
...Rotating box (rotating body), 8...Cover, 8
B...Cover body, 10...Front surface, 14...Rotating device, 16...Screw feeder, 18...Feeding drive device, 23...Transport conveyor.

Claims (1)

[Scope of utility model registration request] A recess is formed in the center of the bottom of a storage space such as a silo, a rotating body is provided above the recess so as to be horizontally rotatable, and the shape is such that it opens in the direction of travel and the back slopes sequentially from the upper end to the lower end. The cover is provided with its base end fixed to the rotating body and its distal end extending to the vicinity of the outer periphery along the bottom surface of the storage space, and a rotating device for rotating the cover around the rotating body. a feeding drive device which opens the front surface of the cover in the advancing direction, disposes a screw feeder inside the cover, and rotates the screw feeder inside the rotary body to send the stored material that has entered the cover into the recess; What is claimed is: 1. A stored material discharging device for a silo or the like, characterized in that the stored material discharging device is provided in a silo or the like, and is provided with a stored material conveying device extending from the lower side of the recess to a predetermined location.