JPH0734041Y2 - Belt clamp type unloader feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a feeding device for a belt pinch type unloader.

[Conventional technology and its problems]

As is well known, a continuous unloader for unloading loose materials such as grains and powders from a hold holds a boom frame on a traveling frame so that the tip of the boom can be raised and lowered. Suspend an elevator (or vertical screw conveyor) and place 1 at the bottom of this bucket elevator.
A pair of bucket type feeders are attached and configured, and bulk objects are picked up by this bucket type feeder and supplied to the bucket elevator, and the bucket elevator conveys them upward to unload them.

In place of the bucket elevator in such a continuous unloader, a belt-clamping conveyor has been used, and instead of a bucket feeder, a belt-clamping unloader using a paddle feeder has come to be used (actual exploitation Sho-58-114232).
(See the official gazette).

However, in such a belt pinch type unloader, for example, the vertical transfer section has a length of 20 m, and the bend roller bends the vertical transfer section to the horizontal transfer section, and the vertical transfer section swings. However, if a particularly long and hard foreign matter such as an iron piece or a piece of wood different from a loose piece is sandwiched between the double belts, the two flat belts are severely damaged (e.g., vertical plucking). Moreover, once the belt is damaged, it takes a lot of time and money to replace it. Nevertheless,
Conventionally, no measures have been taken to prevent such damage.

In particular, if such a foreign substance lies between the pair of paddle feeders in the axial direction and is bitten or clogged, it takes a lot of time to clear it.

[Means for Solving the Problems]

Therefore, the present invention has been devised in order to eliminate such inconvenience, and the gist of the present invention is that it is provided at the tip of the boom.
In a belt-clamping unloader in which a heavy belt conveyor is suspended and a pair of paddle feeders is provided at the lower end of the double belt conveyor, the paddle feeder has a plurality of paddle blades radially attached from the paddle feeder shaft, A paddle partition plate that traverses these paddle blades, and below the pair of paddle feeders, a scraping bar is installed horizontally on the paddle feeder shaft, and the scraping bar is attached to the paddle blades. It is a feeder for a belt-nip unloader characterized in that it is brought as close as possible to the rotational trajectory of the tip.

〔Example〕

The structure of the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings.

FIG. 1 is a side view of an embodiment of the present invention, and FIG. 2 is A of FIG.
FIG. 3 is a side view of an arrow view, FIG. 3 is a perspective view of a main part of this embodiment, FIG. 4 is an overall view of a belt-clamping unloader having a paddle feeder, and FIG. 5 is an operation explanatory view of this embodiment.

Therefore, in FIG. 4, the present embodiment is a belt-clamping unloader for unloading grain in a hold and loose items such as feed with poor fluidity, and 1 is composed of a flat belt. The belt 2 and the subordinate belt 3 are combined, and a belt-clamping type unloader, that is, a double-belt conveyor that conveys the loose material 8 by sandwiching it at the mating portion, that is, a double-belt conveyor. In addition, it is composed of a vertical transport unit V that can move up and down (d) and a horizontal transport unit H that can move up and down (e). The lower end of the double-belt conveyor 1 has a skirt-shaped widening at the lower end. That is, the tail pulleys 9 and 9 of the main and sub belts 2 and 3 are separated from each other at the same height and in the horizontal direction to form the skirt portion 4. Below the skirt portion 4, a pair of paddle feeders 5, 5 are attached. The paddle feeder 5 is driven and rotated by a motor (not shown) on a bracket provided below the vertical frame 18 (see FIG. 1) that supports the double belt conveyor 1. .

A chute 6 is provided at the exit of the horizontal transport section H. Reference numeral 7 is a hull, 8 is a bulk object, 10 is a pair of ear pressing rollers, sandwiching both ears of the main and slave belts 2 and 3 and sandwiching the bulk object 8 in the widthwise central portion of the belt to convey. It has become. Reference numeral 11 is a conveyance amount regulation pulley, which is formed in a drum shape.
Reference numeral 14 indicates a return bend roller.

Therefore, according to the belt pinch type unloader of the present embodiment, in order to unload the loose material 8 in the hull 7, the main and slave belts 2 and 3 are driven at the same speed and in the same direction, and the paddle feeders 5 and 5 are driven. Are rotated so as to face each other, and the loose material 8 is scraped up on the skirt portion 4 of the double belt conveyor 1. As a result, the loose object 8 is sandwiched between the main and slave belts 2 and 3 and conveyed by the vertical conveyor V as indicated by arrow a in FIG. 4, and by the horizontal conveyor H by the chute 6 as indicated by arrow b. Will be transported to.

Here, a pair of left and right horizontal screws 12 and 1 (Fig. 2) between the pair of paddle feeders 5 and 5 of the present embodiment are as follows.
Two are provided. That is, FIGS. 1, 2 and 3
In the figure, the paddle shaft brackets 13 and 13 are respectively extended below the vertical frames 18 and 18 on both sides, and further the screw shaft brackets 15 and 15 are provided by branching from the paddle shaft brackets 13 and 13. Both ends of one horizontal screw shaft 16 are supported by the screw shaft brackets 15, 15. On this horizontal screw shaft 16, the paddle blade 5a
Horizontal screws 12 and 12 are attached to the outside of the width L of each. The portion of the horizontal screw shaft 16 on the paddle blade 5a side is a scraping bar. Moreover, this scraping bar has 5 paddle blades.
It is arranged so as to be as close as possible to the rotational trajectory of the tips of a and 5a. Although not shown, the horizontal screw shaft 16 is driven and rotated by a paddle shaft 17 via a sprocket and a chain.

The paddle blades 5a of the paddle feeder 5 are constructed as follows. That is, in FIG. 3, the paddle shaft
A plurality of paddle blades 5a radially attached to 17 are provided with one to four paddle partition plates 19 and 1 orthogonal to these paddle blades 5a.
9 ... The number of the paddle partition plates 19 is set according to the axial width L of the paddle blades 5a.
When L is small, the number is 1, and when L is large, the number is 4. The paddle shaft 17 has a large diameter in order to make the loose material scraping space S formed by the paddle blades 5a and the paddle partition plate 19 as small as possible.

The paddle feeder 5 of the present embodiment has the above-mentioned configuration, and therefore performs the following operation. That is, the pair of paddle feeders 5 are driven and rotated so as to face each other, and the loose object 8 is scooped up and repelled toward the skirt portion 4. With this driving rotation, the horizontal screw 12 is also driven and rotated, and the paddle blades 5a are rotated. The loose object 8 outside the width L is scraped toward the center of the paddle blade 5a. As a result, the loose material 8 in the vicinity of the upper portion of the horizontal screw 12 is unbalanced and is sequentially fed to the paddle blade 5a by the horizontal screw 12. And
When the hard and long foreign matter K (see FIG. 5) is mixed in the loose object 8, the foreign matter K lying in the axial direction of the paddle feeder 5 is obstructed by the paddle partition plate 19 and scraped off the loose object. Since it does not enter the space S, the foreign matter K cannot be repelled toward the skirt portion 4.

Further, if the foreign matter K is mixed in the loose object 8 in the direction perpendicular to the axis of the paddle feeder 5 as shown in FIG. 5, since the foreign matter K has a larger centrifugal force than the loose object 8, The paddle blade 5a is located on the outer periphery of the paddle blade 5a and is stuck in the loose material scraping space S, and is about to be rotated by the paddle blade 5a, but it is caught by the scraping bar of the horizontal screw shaft 16 and falls, and the skirt portion 4 Can't be fried up towards. Also, there is almost no gap between the scraping bar of the horizontal screw 16 and the tips of the paddle blades 5a, 5a, but the foreign matter K is the scraping bar and the paddle blade.
When the small gap with the tip of 5a is blocked, a rotation decrease is detected by a paddle drive shaft rotation detector (not shown), and the paddle feeder 5 is stopped emergency. Then, the clogged foreign matter K is manually removed, or the paddle feeder 5 is reversed by an unillustrated drive device to be removed.

In addition, the scraping bar portion of the horizontal screw shaft 16 may have a star-shaped cross section so as to have a function of excavating bulk material.

Further, in the above embodiment, the horizontal screw shaft 16 is also used to form the scraping bar, but a fixed dedicated scraping bar may be provided.

[Effect of device]

According to the present invention, the paddle partition plate and the scraping bar prevent the long foreign matter mixed in the loose material from being repelled, and thus the double belt conveyor does not hold the long foreign matter.

In addition, since the paddle partition plate is provided, the paddle blades can be reinforced.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention, and FIG. 2 is A of FIG.
FIG. 3 is a side view of an arrow view, FIG. 3 is a perspective view of a main part of this embodiment, FIG. 4 is an overall view of a belt-clamping unloader having a paddle feeder, and FIG. 5 is an operation explanatory view of this embodiment. 1 ... Double belt conveyor, 5 ... Paddle feeder, 5a
...... Paddle blades, 12 ...... Horizontal screw, 16 ...... Horizontal screw shaft, 17 ...... Paddle shaft, 19 ...... Paddle partition plate.

Claims (1)

[Scope of utility model registration request] 1. A belt-clamping unloader in which a double belt conveyor is hung at the tip of a boom, and a pair of paddle feeders is provided at the lower end of the double belt conveyor, wherein the paddle feeder has a paddle feeder shaft. It is composed of a plurality of paddle blades mounted more radially and a paddle partition plate that traverses these paddle blades, and a scraping bar is installed horizontally below the pair of paddle feeders and horizontally to the paddle feeder shaft. Then, the scraping bar is arranged as close as possible to the rotation locus of the tip of the paddle blade, and the belt pinch type unloader supply device.