JP3657933B2 - Mass supply unit for concrete such as concrete - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a device for separating earth and sand mixed with a lump such as a concrete lump from the lump and supplying only the lump to a crusher or the like.
[0002]
[Prior art]
The concrete lump feeding device according to the patent application of the present inventor disclosed by the following Patent Document 1 and Patent Document 2 can smoothly supply a large and small concrete lump to a crusher such as a jaw crusher without clogging in the hopper. It is to make.
[0003]
[Patent Document 1]
JP 2000-301021 A [Patent Document 2]
Japanese Patent Laid-Open No. 2001-062318
[Problems to be solved by the invention]
By the way, the waste material of the concrete lump generally contains earth and sand, and other powdered and granular materials. However, when these are mixed with the lump and supplied to, for example, a jaw crusher, the processing efficiency is deteriorated and the granular material is reduced. Since it is bitten between the crushing teeth and cannot be separated, there is a possibility that the crushing of the lump is disturbed and workability is deteriorated.
[0005]
Therefore, the present invention provides a quantitative supply device that can separate the sand and the like mixed in the block such as a concrete block in advance from the block and supply only the block to a crusher, etc. The crushing is performed more smoothly.
[0006]
[Means for Solving the Problems]
For that purpose, the quantitative supply device for a lump such as a concrete lump according to the present invention is a quantitative supply capable of previously separating earth and sand mixed in a lump such as a concrete lump from the lump and supplying only the lump to a crusher or the like. An apparatus is provided, which is characterized in that the crushing of the lump with a jaw crusher or the like is performed more smoothly.
Further, in the mass supply device for a lump such as a concrete lump according to the present invention, the slats formed by alternately arranging the fixed bars and the movable bars in parallel with a small gap are inclined in the longitudinal direction of the bars. The lump on the slats is slid down by moving it back and forth in the longitudinal direction, and the lower end of the movable bar is pivotally supported and the upper end is connected to the eccentric ring to rotate the eccentric ring. By moving the movable bar up and down, the lump on the slat is rocked while sliding down.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of this lump quantitative supply device, FIG. 2 is a sectional view taken along line AA, FIG. 3 is a sectional view taken along line BB, FIG. 4 is a sectional view taken along line CC, and FIG. FIG. 6 is a cross-sectional view taken along line D and FIG. 6 is a cross-sectional view taken along line EE of FIG. A pair of rollers 2 and 3 are rotatably provided on a machine base 1 made of H-shaped steel, the roller 3 is positioned slightly higher than the rollers 2, and a rail member 4 is laid on both the rollers to form a rectangle. The frame body 5 is supported so as to have a gentle inclination with an inclination angle of about 5 degrees in the longitudinal direction. As shown in FIG. 2, the frame 5 has a small gap between a plurality of fixed bars 6 combined in a substantially T-shaped cross section and a plurality of movable bars 7 combined in a substantially T-shaped cross section. The slats 8 are configured by arranging them alternately. Further, the support piece 9 is provided on the machine base 1 to support the fluid cylinder 10, and the operation shaft 11 is pivotally attached to the support piece 12 protruding from the bottom surface of the frame body 5, thereby operating the fluid cylinder 10. Then, the slat 8 is configured to move back and forth in the longitudinal direction as indicated by an arrow. Of the plurality of fixed bars 6, the fixed bars 6 a located on both side edges are formed slightly wider than the others. Further, each of the fixed bars 6 and the fixed bars 6a is formed in a tapered shape so as to gradually decrease in width toward the lower side as shown by the difference between w1 and w2 in FIG. The gap is gradually widened downward.
[0008]
Then, as shown in FIG. 5, the plurality of fixed bars 6 and the fixed bars 6 a have their inclined lower ends fixed on the frame 5 with bolts 13, and the inclined upper ends are fixed on the frame 5 with bolts 14. It is stuck. Further, as shown in FIG. 4, a horizontal shaft 17 is provided by penetrating the fixed beam 6 and the fixed beam 6 a on the inclined lower end portion of the frame 5, and the horizontal shaft 17 is provided on both sides of the fixed beam 6. A predetermined gap is provided by interposing a collar 18 so as to be positioned, and the horizontal shaft 17 is inserted into the inclined lower end portion of the movable beam 7 so that the lower end portion of the movable beam can be rotated on the horizontal shaft 17. Pivot. Further, the inclined upper end of the movable bar 7 is fixed to the movable beam 20 via the flange 19, and as shown in FIG. 6, a bracket 23 is fixed to the frame body 5 and a pair of rollers 21 provided on the bracket. Thus, the movable beam 20 is sandwiched from both end surfaces, and the movable beam is supported so as to be movable up and down.
[0009]
As shown in FIG. 5, reference numeral 25 denotes a mechanism for moving the movable beam 20 up and down by a motor 26. A rotary shaft 28 is supported by a bearing 27 provided on the frame 5, and the motor 26 rotates. The rotation is transmitted to the rotary shaft 28 via the chain 22. A pair of eccentric rings 29 are fixed to the rotary shaft 28, and an outer ring 30 loosely fitted on the outer periphery of each eccentric ring is supported by a U-shaped metal fitting 31 fixed to the back surface of the movable beam 20. In addition, 32 is a side plate provided upright on both side edges of the snowboard 8, and 33 is a drop guide chute provided in an inclined shape so as to continue to the inclined lower portion of the snowboard 8.
[0010]
On the other hand, 35 is a lump hopper for lump that is supported on the upper part of the slat 8 by an outer frame frame 36, 37 is a skirt plate extending to the lower end opening edge of the charging hopper, and 38 is a lower end opening edge of the charging hopper. Reference numeral 39 denotes an elastic plate made of a thin plate-like rubber fastened to the outer periphery of the charging hopper.
[0011]
FIGS. 7 and 8 show the use state of the lump fixed quantity supply device. 50 is a discharge hopper supported below the slat 8 on the machine base 1, and 51 is provided below the discharge hopper. 52 is a hydraulically operated jaw crusher which is a crusher provided below the drop guide chute 33, 53 is a conveyor provided under the jaw crusher, and 54 is a collective conveyor for both conveyors 51 and 53. , 55 is a vibrating inclined sieve provided at the end of the collective conveyor, and 56 and 57 are compartments for gravel, earth and sand classified by the vibrating inclined sieve. Reference numeral 58 denotes a sensor that is suspended from the inlet portion of the jaw crusher and detects the presence or absence of a lump by variation in electrical continuity.
[0012]
In this apparatus, as shown in FIG. 7, for example, the concrete block 59 thrown into the throwing hopper 35 by the excavator dozer 60 is placed on the slat 8 supported in an inclined shape, and the fluid cylinder 10 operates to Since the snowboard 8 moves forward and backward, it can slide down in order and be supplied to the jaw crusher 52 through the drop guide chute 33. Then, the earth and sand and other powdery particles adhering to the concrete block 59 fall from the gap between the fixed beam 6 and the movable beam 7 and are discharged to the discharge hopper 50, so that these powdery particles are transferred to the jaw crusher 52. The proportion supplied by mixing can be very small.
[0013]
Further, the rotating shaft 28 and the eccentric ring 29 are rotated by driving the motor 26 to move the outer ring 30, the U-shaped bracket 31, and the movable beam 20 up and down, so that a plurality of upper ends are fixed to the movable beam 20. As shown in FIG. 9, the movable bar 7 moves up and down with the horizontal shaft 17 as a fulcrum, and the concrete block 59 sliding down on the movable bar 7 moves up and down. The powdered granular material is shaken off by the impact, and the concrete block 59 can be always supplied smoothly without being clogged in the charging hopper 35.
[0014]
For this reason, the sensor 58 detects the presence or absence of the concrete block 59 at the inlet of the jaw crusher 52, and when the concrete block disappears, the fluid cylinder 10, the motor 26, etc. can be operated to supply a new concrete block.
[0015]
【The invention's effect】
As described above, the lump quantitative supply device according to the present invention supports the slats in which the fixed bars and the movable bars are alternately arranged in parallel with a small gap so as to be inclined in the longitudinal direction of the bars. Then, the lump on the slats is slid down by advancing and retreating in the longitudinal direction, and the lump on the slats is swung during sliding down by moving the movable bar up and down. It is possible to separate the mixed granular materials such as earth and sand from the lump, and to supply as much as possible only the lump to the crusher etc. This has a beneficial effect of preventing the problem and improving the processing efficiency.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a lump fixed amount supply apparatus showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
3 is a cross-sectional view taken along line BB in FIG.
4 is a cross-sectional view taken along the line CC in FIG. 1. FIG.
5 is a cross-sectional view taken along the line DD of FIG.
6 is a cross-sectional view taken along line EE in FIG.
FIG. 7 is a side view of a concrete block breaking facility according to the present invention.
8 is a plan view of FIG. 7. FIG.
9 is an operational state diagram of FIG. 1. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Machine base 2, 3 Roller 6 Fixed crossing 7 Movable crossing 8 Snowboard 10 Fluid cylinder 17 Horizontal axis 20 Movable beam 26 Motor 28 Rotating shaft 29 Eccentric ring 30 Outer ring 33 Falling guide chute 35 Lumping hopper 50 Discharge hopper 52 Jaw Crusher 58 sensor 59 concrete block

Claims (2)

By supporting a snowboard formed by alternately arranging fixed bars and movable bars parallel to each other with a small gap so as to incline in the longitudinal direction of the bar material, it moves forward and backward in the longitudinal direction. A lump supply unit for a lump such as a lump of concrete, wherein the lump is slid down and the movable bar is moved up and down to swing the lump on the slat during sliding. By supporting a snowboard formed by alternately arranging fixed bars and movable bars parallel to each other with a small gap so as to incline in the longitudinal direction of the bar material, it moves forward and backward in the longitudinal direction. And the lower end of the movable bar is pivotally supported, the upper end is connected to the eccentric ring, and the eccentric ring is rotated to move the movable bar up and down. An apparatus for quantitatively supplying lump such as concrete lump, wherein the lump is rocked while sliding down.

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