JPH0215865Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention places an inverted cone-shaped cone in the center of the silo bottom, and a plow that rotates below the cone is installed to scrape up accumulated material. This invention relates to a silo dispensing device for dispensing to a chute.

[Prior Art] A conical cone having a discharge opening at the bottom and covering the discharge opening for storing stored materials such as coal, lime, fertilizer, wood chips in a container and discharging them as required. Cylindrical silos are used.

The store will be stored at a specific angle of repose with respect to the bottom outlet, and therefore the store will be located at a predetermined angle of repose below the cone up to the outlet. If a dispensing device is provided at the outlet of the covered bottom, when the dispensing device is activated, the angle of repose is broken and the stored material automatically starts discharging. After a predetermined amount is discharged, the stored material regains its angle of repose and stops discharging. By repeating this operation, a predetermined amount of the stored material can be discharged and transported to a desired location by means of transportation such as a freight car, an automobile, or a conveyor belt.

However, in the conventional technology, the discharging operation was not sufficient and old stored materials tended to accumulate, so the present applicant proposed a system in which a dispensing arm (plow) was provided on the revolving chute in Japanese Utility Model Application Publication No. 61-92638. proposed. This proposed technique will be outlined with reference to FIGS. 3 and 4. 3 and 4, a bracket 2 is placed on the lower surface of the bottom plate 3 of the silo 1, and rotatably supports the inner ring portion of the swing gear 4. The swing gear 4 is engaged with a pinion 5 and is driven by a drive device 6. The swing gear 4 is attached to a disc 7, and a swing chute 8 is fixed to the center of the disc 7. These gears 4, pinion 5, and drive device 6 constitute a rotating device of the plow. The swing chute 8 consists of a cylindrical body and a truncated conical discharge part connected to the lower part of the cylindrical body, and a part of the cylindrical body is cut off to form an opening. A plow 10 is installed on the outer peripheral wall of the cylindrical body corresponding to the opening.
is fixed with a plurality of mounting bolts 11. The paddle has a planar shape as shown in FIG. 4, and is curved in the direction of rotation shown by arrow A. During operation, the contents S introduced from the top of the silo 1 fall to the bottom of the silo 1, form a specific angle of repose below the cone 12 supported by the support beam 9, and come to rest. At this time, the weight of the contents is uniformly distributed at the bottom of the silo due to the presence of the cone provided at the center of the bottom of the silo, and is stored in a well-balanced manner.

When it is necessary to dispense the contents, the drive device 6
When the plow 10 and the rotating chute 8 are activated and the plow 10 is rotated in the direction of the arrow A, the angle of repose of the contents S is distorted and the contents S are swept into the opening of the rotating chute 8 and flowed downward.

However, with such equipment, if the plow is worn out or broken during long-term use, or when the plow is inspected, the plow is buried in the stored material, so it is necessary to remove the inside of the silo. There is. Although it is generally possible to discharge the accumulated material through an inspection port provided on the side of the lower part of the cone, this work is troublesome and may not be completed in time in an emergency.

[Purpose of the invention] Therefore, an object of the present invention is to provide a silo discharging device that does not require discharging the stored material in the silo when repairing or inspecting a plow.

[Structure of the invention] The silo discharging device according to the invention has an inverted conical cone arranged at the center of the bottom of the silo, and a plow that rotates in a direction toward the chute and gathers the stored material below the cone, The silo dispensing device uses the plow to scrape up the stored material and discharge it to a chute, which is equipped with a rotating device that rotates the chute, the plow is pivotally attached to the chute, and the plow is held at a fixed position during normal dispensing. The plow is provided with a first stopper for holding the plow and a second stopper for holding the plow in the center position when the plow is reversed.

[Operation and effect of the invention] Therefore, the point that the stored material is discharged by the rotation of the chute is the same as the device shown in Figs. 3 and 4, but in this case, the plow is It is engaged with the first stopper by resistance and is held in the normal dispensing position. Therefore, when inspecting, repairing, or replacing the plow, the chute is rotated in the opposite direction to the normal rotation direction. Then, the plow receives a force acting in the direction opposite to the normal rotational direction due to the accumulated material, so when it pivots toward the center position and performs a movable movement that repeats forward and reverse rotation, the plow moves to the second stopper. engage with. At this time, the plow is located substantially below the cone and is pivoted to a location where it is not affected by the accumulated material, so that inspection, repair, replacement, etc. can be easily carried out.

[Example] Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2. In these drawings, parts corresponding to the apparatus described above with respect to FIGS. 3 and 4 are given the same reference numerals. i.e. silo 1
There is a chute 8 below the cone 12 near the bottom of the cone 12.
A plow 20 is provided which rotates together with the chute 8, and the chute 8 is rotated normally in the direction of arrow A by a reversible motor 6, a pinion 5, and a swing gear 4 that constitute a rotating device. When the plow 20 installed on this chute 8 rotates forward in the direction of arrow A,
Gather the accumulated material S to the center and open the opening 2 of the bottom plate 3.
1 into the chute 8.

According to the present invention, a post 22 is erected on the chute 8 and extends upwardly through an opening 21 in the bottom plate 3, and a bracket 23 is provided at the upper end of the post 22. A plow 20 is pivotally connected to this bracket 23 by a hinge 24. And in bracket 23 there is plow 2.
a first back plate 2 constituting a first stopper that engages with a back plate 25 of 0 to hold the plow 20 in a fixed position;
6, and a second back plate 28 constituting a second stopper that engages with the raking surface 27 of the plow 20 and holds the plow 20 at the center position 20a.

These first and second back plates 26, 28 may be replaced with pins, for example.

When the chute 8 is rotated in the direction of arrow A during operation, the plow 20 receives pressure from the accumulated material S on its scraping surface 27, so that the back plate 25 is in the illustrated position where it engages with the first stopper 26, Perform normal raking work and discharge the stored material S into the chute 8.

In the event that a foreign object or the like gets caught on the underside of the plow 20 inside the silo, when the motor 6 is reversed, the plow 20 will receive pressure from the accumulated material on its back side (the surface opposite to the raking surface 27). plow 20,
It rotates about the hinge 24 in the direction of arrow B. Therefore, the trapped foreign matter is removed.
At this time, it is particularly preferable to perform forward and reverse movable movements.

In addition, in the case of inspection, repair, etc., the plow 20 is reversed and the movable movement is performed so that the plow 20 moves to the second stopper 2.
8 to the center position where it engages. This position 2
At 0a, since the plow 20 is substantially located under the cone 12, inspection, repair, replacement, etc. can be easily performed without being affected by the accumulated material S.

[Conclusion] As described above, according to the present invention, since the plow is provided so as to be able to pivot freely, it is relatively easy to remove foreign objects when they are bitten, and the plow can be easily removed during inspection, repair, replacement, etc. can be moved to the center position and positioned where it will not be affected by the accumulated material, allowing work to be carried out without removing the accumulated material.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing an example of a silo dispensing device embodying the present invention, Fig. 2 is a plan view of the plow shown in Fig. 1, and Fig. 3 is a cross-sectional view of the silo dispensing device of the earlier application filed by the present applicant. FIG. 4 is a sectional view similar to FIG. 1, and FIG. 4 is a plan view showing the plow of FIG. 3. 4...Swivel gear, 5...Pinion, 6...Reversible motor, 8...Chute, 20...Plow, 23...Bracket, 24...Hinge, 26...First stopper, 2
8...Second stopper.

Claims (1)

[Scope of utility model registration request] An inverted cone is placed at the center of the bottom of the silo, and a plow is provided below the cone that rotates in a direction to scrape up the stored material toward the chute. A silo dispensing device for dispensing includes a rotating device for rotating the chute, the plow is pivotally attached to the chute, a first stopper holds the plow in a fixed position during normal dispensing, and a first stopper holds the plow at a fixed position during reversal. A silo dispensing device comprising: a second stopper for holding the silo in position.