JP2568473B2 - Method for crushing billy gravel and apparatus for crushing billy gravel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to is, of kink that can be by crushing Billiton gravel only in the garden of laying gravel, etc. was not available (gravel of grain size 5mm~10mm) to sand (particle size less than 5mm)
The present invention relates to a gravel crushing method and a billy crushing device.

[0002]

2. Description of the Related Art Conventionally, as the aggregate (sand, gravel) used for concrete, river gravel and sand have been mainly used, but from around 1965, regulation of collection of river gravel began.
Since then, regulations on the extraction of gravel from rivers have become stricter, and the extraction of gravel from rivers is now banned.

On the other hand, in the construction industry, the demand for sand and gravel is increasing, and as a result, typical gravel other than river gravel, and the source of the sand, are mountain gravel, mountain sand, sea sand, and crushed rock from mountains. Etc. began to be collected.

[0004] Here, the gravel and sand are sieved from grit ore, and are classified as sand with a grain size of 5 mm or less, grainy gravel with a grain size of 5 mm to 10 mm, gravel with a grain size of 10 mm to 25 mm, and others.

Among them, sand and gravel having a grain size of 10 mm to 25 mm are used as aggregates of concrete.

Accordingly, in many gravel plant factories, billy gravel having a particle size of 5 mm to 10 mm, which cannot be used , is left piled up in large quantities. this
Therefore, it is strongly requested to use this billet as sand
It had been.

[0007] To cope with this demand, as a device for crushing billet gravel, a device for crushing by using a centrifugal force to strike against a side wall is known.

[0008]

According to the conventional apparatus [SUMMARY OF THE INVENTION], kink gravel itself, since its own weight is small, Ri is not der crushing than <br/> impact of centrifugal forces, following particle size 5mm sand
It was difficult to do .

[0009] The present invention has been made in view of the above drawbacks, and reliably crushed kink gravel fracture kink gravel can be sand
It is an object to provide a grinding method and kink gravel crushing device.

[0010]

SUMMARY OF THE INVENTION A method of the present invention is a method of crushing a tooth having a plurality of peaks and valleys in a longitudinal direction by a pair of tooth plates formed by cutting a plurality of teeth. And the valleys face each other and mesh with each other, and the gap is narrowed from the upper side to the lower side to be inclined and erected, one of the tooth plates is swingable, and the two tooth plates are resonated via the vibration means, The lower end of one tooth plate is intermittently pressed to adjust the distance between both tooth plates.
Gravel is supplied between the two tooth plates of the crushing mechanism, the spacing of which can be adjusted through the adjusting member, and the pressing force due to the meshing of the two tooth plates of the crushing mechanism, the resonance force due to the vibration of the two tooth plates, It is characterized in that the gravel is crushed into sand by the pressing force.

[0011] The device of the present invention has a structure in which a peak and a valley are arranged in the longitudinal direction.
Crushed by a pair of tooth plates formed by engraving a large number of teeth
In the device, the peaks and valleys of the teeth of both teeth plates face each other
And narrow the gap from top to bottom.
And make one of the tooth plates swing freely.
The plate is resonated via the vibration means, and the lower end of one tooth plate is
And press the gap between the teeth plates through the gap adjustment member.
The distance is adjustable .

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A billet crushing apparatus according to the present invention will be described with reference to FIGS.

[0013] Tooth 1 consisting of peaks 11 and valleys 13 in the longitudinal direction
A pair of tooth plates 17 and 19 formed by engraving a large number of 5 are provided. In this example , the teeth 15 are engraved only on one side of each of the tooth plates 17 and 19, and the shape thereof is uneven in cross section (see FIG. 2).

Crests 11 and valleys 1 of teeth 15 of both tooth plates 17 and 19
3 are opposed to each other and meshed with each other, and are inclined and erected from the upper side to the lower side with a narrow interval. In this example <br/>, both tooth plates 17 and 19, a connecting member 23 connected to the swing fulcrum 21 and to the movable frame 27 that is disposed movably on a base 25, mounting plate 29 It is preferable that the inclination angles of the two tooth plates 17 and 19 are adjustable, and the angle between the vertical direction and the horizontal direction is adjusted to about 25 degrees with respect to the vertical direction.

The two tooth plates 17, 19 are inclined upright because the lower part of the billet gravel 49 inserted between the two tooth plates 17, 19 is located below.
To prevent sudden fall to the side and not to cause crushing failure
At the same time, the crushed billet gravel 49 is smoothly carried downward by its own weight.

One tooth plate 17 is swingable. Book
In the example , the swinging means of the tooth plate 17 connects the upper end of the tooth plate 17 to the connecting member 23 connected to the swing fulcrum 21 via the elastic body 31, and connects the lower end of the tooth plate 17 to the free end. It is constituted by doing. The elastic body 31 is made of rubber with a bolt disposed at the center.

The other tooth plate 19 has a movable frame 27
1 is provided on a mounting plate 29 provided via the first mounting plate 1.

The tooth plates 17 and 19 are resonated via the vibration means 33. In this example , the vibration means 33 is a vibration motor, and the mounting plate 2 on which the tooth plates 17 and 19 are installed.
9 is attached to the attachment plate 29 so as to vibrate.
At this time, in order to resonate both tooth plates 17 and 19, both tooth plates 1
It is necessary to change the frequency of the vibrating means 33 of 7 and 19, and the frequency of the vibrating means 33 of both tooth plates 17 and 19 is set to 1:
It is desirable to be 2.

The distance between the two teeth 17 and 19 is adjusted at the moving end of the moving frame 27 on the base 25 on which the teeth 19 are installed.
The distance adjustment member 35 is provided for the adjustment. The distance between the two tooth plates 17 and 19 is adjusted by adjusting the amount of protrusion of the distance adjusting member 35 on the moving frame 27 side.

The lower end of one tooth plate 17 is intermittently pressed. In this example , the intermittent pressing means is a spring member 37 and a cylinder 39 for pressing the spring member 37, and it is desirable that the cylinder 39 expands and contracts once every several seconds.

A crushing mechanism 41 is constituted by the above-mentioned components.

Above the crushing mechanism 41, a billet hopper 43 is provided.

The cylinders 45 and 47 in FIG.
9 is a stopper for controlling the pressing force of the spring member 9 and the spring member 37.

A process of crushing billet gravel to sand by using the billy crushing apparatus according to the present invention will be described with reference to FIG.

First, the distance between the two tooth plates 17 and 19 of the crushing mechanism 41 is set according to the particle size of the sand to be obtained by crushing.
By adjusting the amount of protrusion of the interval adjusting member 35 on the moving frame 27 side, the adjustment is appropriately performed.

Next, a predetermined amount of billet gravel 49 is put into the billy hopper 43.

Next, the vibrating means 33 of the tooth plates 17, 19,
The cylinder 39 is driven, and the tooth plates 17 and 1 are driven.
The billet gravel 49 introduced from above between 9 is carried out and crushed.

At this time, the two tooth plates 17 and 19 are inclined upright.
, The billet gravel inserted between the teeth 17 and 19
The sharp fall down of 49 is prevented, and the billy gravel 49 is crushed.
Crushed without being transported down without being
The billy gravel 49 is smoothly carried down by its own weight,
Poor crushing does not occur.

[0029] In addition, the teeth 15 of the two tooth plates 17 and 19 mountain 11
Due to the weight of the valley 13, the valley 13 and the gravel 49
The billet gravel 49 inserted between the positions 7 and 19 is forcibly discharged downward without moving upward or laterally.

The billet gravel 49 supplied between the teeth 17 and 19 of the crushing mechanism 41 is crushed by the pressing force generated by the engagement of the teeth 17 and 19.

Further, one of the teeth plate 17 swingable is vibrated via the vibration means 33, the other tooth plate 19 vibrating means 3
As a result, the two tooth plates 17 and 19 resonate, and the resonance force is transmitted to the billet gravel 49, so that the crushing force increases due to the resonance action. I do.

Further, between the two tooth plates 17 and 19, a rubbed gravel 49 is provided.
Even in a state in which has bitten, a spring space between the tooth plate 17 and 19 can be avoided is elastically opened and closed via the elastic body 31 is intermittently pressed further the bottom edge of one of the teeth plate 17 The two tooth plates 17, forcibly by the material 37 and the cylinder 39,
Because the interval between 19 are opened and closed, it can be more efficiently avoided biting kink gravel 49.

The lower end of one tooth plate 17 is provided with a spring material 37.
And because it is intermittently pressed by the cylinder 39, kink gravel 49 is crushed between the two teeth plates 17 and 19 to fall to intermittently downward, above the kink gravel 49 between both the tooth plate 17 and 19 With this fall Is transported downward and crushed. At this time, the crushing force increases due to the pressing force of the spring member 37 and the cylinder 39.

In this embodiment , the vibration means 33 is a vibration motor, but may be a rock drill (vibration hammer).

Further, the billet crushing apparatus used in the method for crushing billy gravel according to the present invention does not need to be the same as that of this embodiment .
Teeth to resonate a pair of teeth plate formed by engraved, provided intermittent pressing means on one of the lower end of the tooth plate of freely rocking, and both tooth plates
What is necessary is just to consist of a crushing mechanism which can adjust the interval .

Although the present invention is a method for crushing billy gravel , it is obvious that the present invention can be used in other fields such as crushing plastic and food (milling).

[0037]

EFFECTS OF THE INVENTION The method for crushing billy gravel according to the present invention and
According to kink gravel crushing device, the tilting vertically arranged pair of teeth plates, is resonated through the oscillation means, one of the teeth plate for which had been intermittently pressed, the kink gravel crushing of both tooth plates In addition to the pressing force due to the meshing of the two tooth plates, the resonance force due to the vibration of the two tooth plates and the intermittent pressing force of one of the tooth plates are applied.
Because, by the mighty force to crush, crushing efficiency rather good Billiton gravel
Can be sand .

In addition, since both tooth plates are erected,
The billet introduced between the teeth prevents the sharp fall from falling.
Will not be transported down without being crushed.
The crushed billy gravel (sand) is smoothed downward by its own weight.
Crushing efficiency
The rate is improved.

Also, if one of the tooth plates is made to be swingable,
Since the lower end of one tooth plate is intermittently pressed,
Even if the gravel is bitten between the plates, both tooth plates
The space between them can be avoided by being opened and closed elastically,
Intermittently presses the end of the tooth plate to forcibly reduce the distance between the two tooth plates.
It opens and closes, so it can more efficiently turn the bite of gravel
You can avoid.

The distance between the two tooth plates is adjusted by a distance adjusting member.
The distance can be adjusted freely, so try to get crushed
Adjust the spacing between the teeth according to the grain size of the sand
Can be easily done.

[Brief description of the drawings]

FIG. 1 is a front view of a billy crushing apparatus according to the present invention.

FIG. 2 is a perspective view of a tooth plate.

[Description of Signs] 11 Mountain 13 Valley 15 Teeth 17 Tooth plate 19 Tooth plate 33 Vibration means 35 Interval adjusting member 41 Crushing mechanism 49

Claims (2)

(57) [Claims] 1. A pair of tooth plates (1) formed by engraving a large number of teeth (15) consisting of peaks (11) and valleys (13) in the longitudinal direction.
In the method of crushing according to (7) and (19) , the ridges (11) and the valleys (13) of the teeth (15) of the tooth plates (17) and (19) face each other and mesh with each other.
The interval is narrowed from the upper side to the lower side, and it is inclined and erected. One tooth plate (17) is swingable, and both tooth plates (17),
(19) is resonated via the vibrating means (33), and the lower end of one tooth plate (17) is intermittently pressed, so that both tooth plates (17),
(19) The distance between the distances via the distance adjusting member (35)
Adjustable crushing mechanism (41), both tooth plates (17),
During (19), the billet (49) is supplied, and the crushing mechanism (41) is pressed by the meshing of the both teeth plates (17) and (19), and is caused by the vibration of both teeth plates (17) and (19). resonance force, by the intermittent pressing force of one of the teeth plate (17), crushing method kink gravel, characterized in that the sand by crushing kink gravel. 2. A pair of tooth plates (1) formed by engraving a large number of teeth (15) consisting of peaks (11) and valleys (13) in the longitudinal direction.
7) In the device for crushing according to (19), the ridges (11) and the valleys (13) of the teeth (15) of the tooth plates (17) and (19) face each other and mesh with each other.
The interval is narrowed from the upper side to the lower side, and it is inclined and erected. One of the tooth plates (17) is swingable,
(19) is resonated via the vibrating means (33), and the lower end of one tooth plate (17) is intermittently pressed, so that both tooth plates (17),
(19) The distance between the distances via the distance adjusting member (35)
Billi gravel crusher characterized by being adjustable .