JP2876567B2 - Billy crushing method and billy crushing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for crushing billy gravel (grit of 5 mm to 10 mm in size) which can only be used for garden stones and the like to form sand (grit of 5 mm or less) and a crushing of billy gravel. It concerns the device.

[0002]

2. Description of the Related Art Conventionally, as the aggregate (sand, gravel) used for concrete for civil engineering and construction, river gravel and sand have been mainly used. 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 rough gravel, and are classified as sand with a grain size of 5 mm or less, grainy 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 for civil engineering and construction.

[0006] Therefore, in many gravel plant factories, billy gravel having a particle size of 5 mm to 10 mm is left piled in large quantities.

As an apparatus for crushing billy gravel, there is a method and apparatus for crushing billy gravel described in Japanese Patent Application Laid-Open No. Hei 7-124487 filed by the present applicant.

In this embodiment, a pair of tooth plates having a large number of teeth formed of peaks and valleys are erected so as to be narrower downward, and one of the tooth plates is intermittently pressed. The two tooth plates are vibrated through the vibrating means, and the pressing force of the two tooth plates, the resonance force due to the vibration, and the intermittent pressing force of one of the tooth plates cause the viscous gravel to mesh with the point of engagement between the crest and the valley below the two tooth plates ( (Crushing point).

[0008]

SUMMARY OF THE INVENTION The above-mentioned Japanese Patent Application Laid-Open No. 7-124
In the method and the apparatus for crushing billet gravel described in Japanese Patent No. 487, since both tooth plates are vibrated by the vibration motor as the vibration means, the vibration force is too strong and the apparatus itself moves from the installation surface due to vibration, which is dangerous. There were drawbacks.

Further, since the crushing of the billet gravel is only at the meshing point (crushing point) between the peaks and valleys below the tooth plates, there has been a problem that poor crushing is likely to occur.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method and an apparatus for crushing billet gravel which can safely, reliably and efficiently crush billet gravel in order to solve such disadvantages.

[0011]

According to the method of the present invention, a plurality of teeth having peaks and valleys are carved in the longitudinal direction, and one end of the tooth ridge in the longitudinal direction is connected to one end in the longitudinal direction. a pair of teeth plate has a fractured surface notched by tilting to be lower height, both crushing surfaces downward, by combining the peaks and valleys of the teeth of the two crushing surfaces facing each other meshes towards And both crushing surfaces
It is positioned so as to be perpendicular to each other, it is inclined downward from the upper part with the interval narrowed, and one of the tooth plates is vibrated via the vibration means, and between the two tooth plates, the billet is supplied from above. In addition, the vibratory gravel is crushed between the two tooth plates to form sand by the pressing force of the two tooth plates and the vibration force of one of the tooth plates.

According to the apparatus of the present invention, a plurality of teeth each having peaks and valleys are cut in the length direction, and one end of each tooth in the length direction is heightened toward one end in the length direction. A pair of tooth plates that are notched so that the crushing surface is lowered so that the crushing surface is lowered , with both crushing surfaces facing down, the peaks and valleys of the teeth on both crushing surfaces facing each other and meshing, and both crushing Planes are perpendicular to each other
In this arrangement, the tooth plate is inclined from the upper side to the lower side with a narrower interval, and one of the tooth plates is vibrated through a vibrating means.

[0013]

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

A tooth 1 consisting of a ridge 11 and a valley 13 in the longitudinal direction
5, and one end in the length direction of the peak 11 of each tooth 15 (a front side portion in FIG. 2) is cut so as to be inclined toward one end in the length direction so as to decrease in height. A pair of tooth plates 19 and 21 which are not provided and serve as crushing surfaces 17 are provided.

The teeth 15 of this embodiment are engraved only on one side of each of the tooth plates 19 and 21 and have an uneven cross section (see FIG. 2).

One tooth plate 19 is fixed to a mounting plate 27 slidably mounted on a moving frame 25 movably disposed on a base 23 with the crushing surface 17 facing downward. .

Vibration means 2 for vibrating mounting plate 27
9 are provided on the mounting plate 27.

The vibration means 29 of this embodiment is a vibration motor.

The other tooth plate 21 is fixed to a mounting plate 27 fixed to the base 23 with the crushing surface 17 facing downward.

The inclined positions of the tooth plates 19 and 21 are set such that the ridges 11 and the valleys 13 of the teeth 15 of the crushing surfaces 17 are engaged with each other so as to face each other, and the interval is narrowed from above to below. The two crushing surfaces 17 are positioned so as to be perpendicular to each other.

It is desirable that the inclination angle of the two tooth plates 19 and 21 be adjustable, and the optimum included angle of the two tooth plates 19 and 21 is within about 25 degrees.

The inclination of the tooth plates 19 and 21 is as follows.
This is for the purpose of carrying out the billet gravel 39 supplied between the two tooth plates 19 and 21 downward by its own weight.

A billet hopper 31 is provided above the tooth plates 19 and 21.

Incidentally, in the drawing, reference numeral 33 denotes an anti-vibration rubber for preventing the vibration of the mounting plate 27 from being directly transmitted to the base 23;
Reference numeral 5 denotes an elastic body for preventing the vibration of the mounting plate 27 from being directly transmitted to the base 23 and improving the vibration efficiency. Reference numeral 37 denotes a shaft attachment portion of the mounting plate 27 to the base 23.

Reference numeral 41 denotes a member for adjusting the intermeshing distance between the two tooth plates 19 and 21 provided at the moving end of the moving frame 25.
It is possible to adjust the meshing interval between the crushing surfaces 17 of 9, 21.

A method for crushing billet gravel using the present apparatus will be described below.

First, the meshing interval between the crushing surfaces 17 of the tooth plates 19 and 21 is adjusted according to the particle size of the sand to be obtained by crushing, and the amount of protrusion of the meshing interval adjusting member 37 on the moving frame 25 side is adjusted. By doing so, it is adjusted appropriately.

Next, a predetermined amount of billet gravel 39 is put into the billy gravel hopper 31.

Next, the vibrating means 29 on one tooth plate 19 side is driven, and the billet 39 supplied from the upper billet hopper 31 between the two tooth plates 19 and 21 is carried out downward.

At this time, the tooth plates 19 and 2 except the crushing surface 17
In one space, the billet gravel 39 is pre-crushed.

The pre-crushed billet gravel 39 is used for both tooth plates 1.
When it is carried out between the crushing surfaces 17 and 9 and 21 and passes between the crushing surfaces 17, it is beaten and crushed by the vibration force of one of the tooth plates 19, and reliably pressed by the pressing force of both tooth plates 19 and 21. Crushed.

At this time, the peak 1 of the teeth 15 of the tooth plates 19 and 21 is
1 and the valley 13, due to the weight of the gravel 39, both tooth plates 1
The movement of the billet gravel 39 inserted between 9 and 21 is controlled upward and laterally, and is forcibly discharged downward.

Accordingly, the billet gravel 39 is formed by the tooth plates 19, 2
When passing between the crushing surfaces 17 of one, it is hit by the vibration force and the pressing force, and is reliably crushed in a wide area.

In this embodiment, the lower part of the other tooth plate 21 is intermittently pressed toward the one tooth plate 19, so that the lower part of the billet 39 supplied between the two tooth plates 19, 21 is lowered. Can be improved, and the crushing force of the billet gravel 39 between the crushing surfaces 17 can be increased.

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).

[0036]

According to the method and the apparatus for crushing billy gravel according to the present invention, a pair of tooth plates are inclined and erected.
By vibrating only one of the tooth plates, it is possible to safely crush the billet gravel inserted between the two tooth plates via the vibration force and the pressing force of the pair of tooth plates.

Further, between the crushing surfaces of the two tooth plates, the billy gravel can be reliably crushed in a surface contact state, and the crushing efficiency is high.

[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.

[Explanation of symbols]

 11 mountain 13 valley 15 tooth 17 crushing surface 19 tooth plate 21 tooth plate 29 vibrating means 39 billet

Claims (2)

(57) [Claims] 1. A plurality of teeth (15) each having a peak (11) and a valley (13) are engraved in the length direction, and one end of the tooth (15) in the length direction of the peak (11) is a pair of teeth plate was crushed surface notched in an inclined such that the height becomes lower toward the length direction of the end (17) (19), (21), both fracture <br/>砕面( 17) with the teeth (1) on both crushing surfaces (17) facing downward.
The ridges (11) and the valleys (13) of 5) face each other and mesh with each other, and both crushing surfaces (17) are perpendicular to each other.
And one of the tooth plates (19) is vibrated by the vibrating means (29).
Vibration is applied through the two teeth plates (19) and (21) to supply a rubbed gravel (39) from above.
The vitrified gravel (39) is crushed into sand by the pressing force of (21) and the vibration force of one tooth plate (19) between the two tooth plates (19) and (21). Crushing method. 2. A plurality of teeth (15) each comprising a peak (11) and a valley (13) are engraved in the length direction, and one end of the tooth (15) in the length direction of the peak (11) is a pair of teeth plate was crushed surface notched in an inclined such that the height becomes lower toward the length direction of the end (17) (19), (21), both fracture <br/>砕面( 17) with the teeth (1) on both crushing surfaces (17) facing downward.
The ridges (11) and the valleys (13) of 5) face each other and mesh with each other, and both crushing surfaces (17) are perpendicular to each other.
And one of the tooth plates (19) is vibrated by the vibrating means (29).
A vibratory gravel crushing device characterized by vibrating through a vibrator.