JPS6351213A - Feeder for bucket elevator - Google Patents

Abstract

PURPOSE:To feed granular matter from a yet lower position without scattering the granular matter, by installing an opening for rejecting the granular matter, in a peripheral wall where a blade body rotates. CONSTITUTION:Unpolished rice is charged on a porous wall surface 22 of a feed hopper 11. The rice is leaked out of holes of the porous wall surface 22 and dropped on a bottom wall 13 while it is sprung out of an opening 18 by a rotating blade body 16 and fed to a supply port 19. That is to say, the unpolished rice is shifted to the side of a peripheral wall 11 while moving by the blade body 16 curved rearward in the direction of rotation, and it is sent flying from the opening 18 by dint of large cetrifugal force of an edge of the blade body 16, then it is collected on a case bottom wall 20 of a case lower part 2B from the supply port by way of a connecting through 21. And, it is discharged to the outside of a machine from a discharge pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bucket-type elevating mechanism for conveying granular materials such as grains, and particularly relates to a single-bucket elevating feeding device.

[Conventional technology]

A case 50 is provided with a supply port 51 at the bottom and a discharge port 52 at the top (see FIG. 6), and an upper internal pulley and a lower internal pulley are installed in the case 50 with an upper shaft 53 and a lower shaft 54. In the case of an elevator in which a bucket belt 56 with a large number of buckets 55... attached thereto is strung between the drawing wheels, the supply port 51 provided on the side of the lower part of the case 50 should be placed at the lowest possible position. It is more convenient to install the machine at the front of the elevator in order to communicate with the equipment installed in the previous stage of the elevator, such as the rice miller 2 right extraction machine.

However, if the supply port 51 is too low, the bucket 55
Since the particulate matter that jumps up when being scooped up by the feeder is scattered outside the machine from the supply port 51, there is a natural limit to the lower position.

The technical object of the present invention is to take the above-mentioned problems into consideration and provide a feeding device for a bucket elevator that can feed granules from a lower position without scattering the granules.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides an elevator case having a discharge port in the upper part, and rotatably provides an upper shaft and a lower shaft, and the upper shaft and the lower shaft are connected to each other. In a bucket elevator, in which the upper and lower internal pulleys are each pivoted, and a bucket belt with a large number of buckets attached is stretched between each of the inner pullers, a. Between the lower shaft,
A supply port for supplying granules is provided in the bottom wall of the case.

(b) On the other hand, near the lower end of the elevator case, a hopper with a rotatable blade inside is provided.

C. The peripheral wall around which the blade rotates is provided with an opening through which particulate matter is thrown out by the blade.

2. The opening and the supply port were connected by a connecting gutter.

This technical measure was taken.

[For production]

The granular material introduced from the top of the tensioning hopper is thrown out from the opening in the peripheral wall of the tensioning hopper by the centrifugal force of the blades installed in the tensioning hopper, and is supplied to the supply port of the elevator case via the connecting gutter. . The granules supplied from the supply port are scooped up by a bucket and discharged from the discharge port at the top of the elevator case.

[Embodiments of the invention]

A preferred embodiment of the invention will be described based on the drawings.

In Figures 1 to 3, 1 indicates the entire bucket elevator, 2 is an elevator case consisting of an upper case 2A, a lower case 2B, and an intermediate case 2C, 3 is an upper shaft provided in the upper case 2A, and 4 is an elevator case. It is a lower shaft provided inside the lower case 2B, and is the upper shaft 3. The lower shaft 4 is rotatably provided, and an upper internal pulley 5 and a lower internal pulley 6 are respectively attached to the upper shaft 3 and the lower shaft 4, respectively. 7 is a bucket belt stretched between the upper internal pulley 5 and the lower internal pulley 6, and a large number of buckets 8 are attached to the bucket belt 7. 9
1 is an electric motor that rotates the bucket belt 7 by connecting it with a V-belt or the like to an external pulley (not shown) attached to the upper shaft 3, and 10 is a discharge pipe connected to a discharge port.

Reference numeral 11 designates a substantially circular tensioning hopper disposed near the lower end of the lower case 2B, reference numeral 12 a peripheral wall forming the inner periphery of the tensioning hopper 11, and reference numeral 13 a bottom wall. 14 is the bottom wall 12
15 is a rotating shaft 14 rotatably installed at the center of the
This is the bearing part. Reference numeral 16 denotes a blade which rotates within the tensioning hopper 11 around the rotation shaft 14, that is, within a disk formed by the peripheral wall 12 and the bottom wall 13. 17 is a boss that fixes the blade body 16. 16A is a boss such as a rubber plate attached to the side edge of the blade body 15 with respect to the peripheral wall 12 and the bottom wall 13 by pasting 1). It is an elastic body, and the elastic body 16
A slight gap is formed between A, the peripheral wall 12, and the bottom wall 13 so that the blade body 15 can rotate.

18 is an opening provided in the peripheral wall, and the frontage 18 is communicated with a supply port 19 provided in the lower case 2B of the bucket elevator 1. That is, the supply port 19 is connected to the entire wall F of the lower case 2B.
and is provided between the lower shaft 4 and the case bottom wall 20 and communicates with the opening 18 by a communication gutter 21. Reference numeral 20 denotes a case bottom wall, and the case bottom wall 20 is provided in an arc shape slightly below the trajectory drawn by the tip of the bucket 8 when the bucket 8 passes the lower end of the lower case 2B. Reference numeral 21 denotes a connecting gutter, and one end of the connecting gutter 121 is connected almost perpendicularly to one supply port, and the other end is connected tangentially to the opening 18 provided in the peripheral wall 12.

22 is a safety cover installed on the top of the hopper 11 and a porous wall surface as a device to prevent large foreign objects from being thrown in; 23
24 is a base to which the reduction motor 23 is attached, and 25 is a stay that supports the base 24.

Next, the operation of the above embodiment will be explained.

The electric motor 9 that rotates the bucket belt 7 and the deceleration motor 23 of the staking hopper 11 are started, and the staking hopper 1
Grain, for example brown rice, is placed onto the porous wall surface 22 of No. 1. The brown rice leaks out of the holes in the porous wall surface 22 and falls onto the bottom wall 13, and also flies out from the opening 18 by the rotating blade 16 and is supplied to the supply port 19. In other words, the brown rice is moved toward the peripheral wall 11 while being moved by the blade 16 that curves backward in the rotational direction, is thrown away from the opening 18 by the large centrifugal force at the end of the blade 16, and is supplied through the connecting gutter 21. It accumulates on the case bottom '220 of the case lower part 2B from one opening. Then, it is scooped up by buckets 8 and discharged from the discharge vibrator 10 to the outside of the machine. In this embodiment, since the elastic body 15A is attached to the blade body 16, brown rice is less damaged.

FIG. 4 shows another embodiment of the present invention, in which a reduction motor 23 is provided along the peripheral wall 12 by a stay 26. 23a is a sprocket of the reduction motor 23, and the sprocket 23a and a sprocket (not shown) provided on the rotating shaft 17 are connected by a chain 27.

28 is a notch for the stay 26 and chain 27.

Reference numeral 29 denotes a tensioning base formed at the height of the porous wall surface 22, and 30 a scattering prevention cover rotatably placed on the upper end of the peripheral wall 12. The scattering prevention cover 30 and the tensioning base 29 are integrally formed. Ru.

The unique functions and effects of this embodiment are as follows:
3 along the peripheral wall 12, the porous wall surface 22 on the upper surface of the charging hopper 11 can be widely used. Further, since the scattering prevention cover 30 and the stake-out table 29 are integrated, the stake-out position can be freely selected by rotating the stake-out table 29, and the grains do not fall out. The rest of the structure and operation are the same as those of the previous embodiment, and will therefore be omitted.

FIG. 5 shows still another embodiment of the present invention, in which 19A is a supply port, and the supply port 19A is provided on the case bottom wall 20 (curved surface portion) on one side wall S side of the case lower part 2B. In this case, the grain supply direction and the scooping direction of the buckets 8 are on the same line, so the buckets 8 are not pushed to one side by the grains.Remaining configurations.

Since the operation is almost the same as that of the first embodiment, a description thereof will be omitted. It goes without saying that this embodiment and the second embodiment can be combined as appropriate.

〔Effect of the invention〕

Since the present invention is as described above, it has the following remarkable effects.

A. Compared to the conventional method of tensioning from the side of the elevator case, tensioning work can be done from a much lower plate, so it can be used not only manually, but also when installed in various plants, since the discharge section of the equipment in the previous process is low. can also be supplied, making it possible to design the entire plant at a low cost.

Since B1 granules are sent to the supply port of the elevator case by being splashed by the blade, there is significantly less granular material remaining in the staking hopper and connecting gutter compared to the case where the granules are scraped out from the bottom of the staking hopper and fed. Therefore, the effort required for cleaning can be significantly reduced compared to the conventional method, and the installation can be carried out quickly.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the entire embodiment of the present invention, FIG. 2 is a partially enlarged cross-sectional view of the same, FIG. 3 is a partially cutaway plan view of the same, and FIG. 4 is a schematic diagram showing another embodiment of the present invention. FIG. 5 is a partially broken pressure surface view of the main part of yet another embodiment, and FIG. 6 is a front view showing a conventional example. 1...Bucket elevator, 2...Elevator case, 3.
...Upper shaft, 4...Lower shaft, 5...Upper internal pulley, 6
...lower inner pulley, 7...bucket belt, 8...
Bucket belt, 9... Electric motor, 10... Discharge pipe, 11... Slotting hopper, 12... Peripheral wall, 13...
... Bottom wall, 14 ... Rotating shaft, 15 ... Bearing part, 1
6...Blade body, 17...Boss, 18...Opening, 1
2... Supply port, 20... Case bottom wall, 21... Connection gutter, 22... Porous wall surface, 23... Reduction motor, 2
4...Base, 25.26...Stay, 27...
Chain, 28... Notch, 29... Staking stand, 30
...Shatterproof cover.

Claims (5)

[Claims] (1) An upper shaft and a lower shaft are rotatably provided in an elevator case equipped with a discharge port at the upper part, and an upper internal pulley and a lower internal pulley are respectively attached to the upper shaft and the lower shaft, and In a bucket elevator in which a bucket belt with a large number of buckets is hung between each inner puller wheel, a supply port for supplying granular material into the case bottom wall is provided between the case bottom wall and the lower shaft of the elevator case. On the other hand, near the lower end of the elevator case, a hopper with a rotatably mounted blade is provided, and an opening is provided in the peripheral wall around which the blade rotates to allow the blade to splash out particulate matter. A supply device for a bucket elevator, characterized in that the opening and the supply port are connected by a connecting gutter. (2) The feeding device for a bucket elevator as set forth in claim (1), characterized in that a scattering prevention cover is provided around the peripheral wall of the loading hopper. (3) Claim No. (1) characterized in that a porous wall surface through which particulate matter passes is provided above the blade body.
A supply device for a bucket elevator according to item or item (2). (4) The bottom wall of the case has an arc shape along the path of the bucket, and the supply port is provided near the upper end of the bottom wall of the case. 2
) or (3), the feeding device for a bucket elevator. (5) Claims (1), (2), (3), or (4), characterized in that an elastic body is attached to the end of the blade body. bucket elevator feeding equipment.