JP2001293385A - Demolishing crushing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a demolishing crushing apparatus having an excellent crushing efficiency. SOLUTION: Double rollers are installed on a bucket type or stationary machine body and a plurality of teeth 4 and 5 are protruded on their circumferences so as to form double crushing-toothed rollers 2 and 3. A lattice, meshed screen plate 8 is disposed in proximity of their lower side. A gap between the double rollers 2 and 3 and the screen plate 8 is constituted so as to be freely adjustable, and the screen plate 8 is installed replaceably in the machine body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a demolition crusher for crushing waste concrete at a demolition site of a building or the like.

[0002]

2. Description of the Related Art A conventional bucket type crusher shown in FIG. 11 rotates a pair of rollers c ₁ and c ₂ having a plurality of crushing teeth b inside a bucket body a by a hydraulic motor. The size of the crushed mass is the crushing teeth b of the rollers c ₁ and c ₂ ,
b Determined by the gap A between the two. Therefore, the size of the crushed mass is usually required to be 40 to 60 mm, and is adjusted to that size. At that time, the size of the crushed mass is 40 ~
The material that is 60 mm, but is caught by the rollers c ₁ and c _2, is not caught because of a small gap and runs idle. To increase the size of the bite, it is necessary to widen the gap A, in which case the crushed mass also becomes large.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a crusher which solves the above-mentioned problems of the prior art and has a very good crushing efficiency.

[0004]

The means of the present invention are as follows.

[0005] A two-axis roller is mounted on a bucket type or stationary type body, and a plurality of crushing teeth are protruded from a peripheral surface of the two-axis roller to form a roller with two-axis crushing teeth. Demolition crusher with grid, mesh, or sieve-shaped sieves.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of a disintegrating crusher according to the present invention will be described with reference to FIGS.

In the figure, a bucket is shown as the crusher main body 1. However, in the case of a stationary type, an arbitrary fixed structure is installed without using a bucket.

A pair of rollers 2 and 3 are installed laterally from the bottom of the main body 1. The rollers 2, 3 supported by the roller shafts 6, 7 have a plurality of crushing teeth 4, 5 mounted on the peripheral surface at equal intervals, and are omitted on the shaft 6 of one of the rollers 2 in the figure,
A hydraulic motor is provided to form an interval A between the crushing teeth 4 and 5.

In the present invention, a sieve plate 8 is attached to the inside of the main body 1 immediately below both roller shafts 6 and 7.

The sieve plate 8 is selected from various structures such as a lattice shape shown in FIG.

The sieve plate 8 is fixed to the side wall of the main body 1 by a fixture 9 as shown in FIG.

Next, the embodiment shown in FIGS.
Shows an example in which the distance between the crushing teeth 4 and 5 on the peripheral surfaces of the rollers 2 and 3 is adjusted so that the size of the crushed mass can be adjusted. Therefore, as shown in FIGS. The mounting piece 15 having the eccentric pin 11 is fixed by the bolt 14 using the formed bolt hole 13, and the adjusting piece 12 is provided below the sieving plate, and the eccentric pin 11 is attached to the adjusting piece 12 for mounting. The fixing position of the eccentric pin 11 is variously changed according to the mounting position of the piece 15, so that the distance between the sieving plate and the crushing teeth of the roller can be adjusted. The clearance between the sieving plate 8 and the crushing teeth 4 and 5 is changed while securing a clearance. In addition to adjusting the sieve plate as described above, if the bolts 14 are removed, the sieve plate becomes detachable.

[0013]

According to the present invention, the mass to be crushed is crushed and, at the same time, the material sieved small due to the presence of the sieve plate is sent out under the sieve plate and crushed by the crushing teeth of the rollers and the end of the sieve plate. You can also. In particular, in the present invention, the concrete pieces crushed by the rollers are smaller than a sieve, and the inner pieces and the rollers are larger than the sieve and smaller than the gap between the roller crushing teeth and the sieve plate (FIG. 5B). If the large piece is larger than the gap between the crushing teeth and the sieve plate (FIG. 5B), the fine piece falls directly through the sieve and the middle piece is discharged from the gap between the roller and the sieve plate. Further, the large pieces serve to re-crush and discharge the gap between the roller and the sieve plate. Therefore, in the present invention, the crushed concrete pieces can be discharged into various sizes. Further, the sieve plate can freely adjust the distance between the crushing toothed roller and can be replaced, so that the following effects are exhibited. That is, the size of the sieve is changed according to the size of the required crushed pieces. The required crushed pieces can be obtained from the gap between the roller crushing teeth and the sieve plate (FIG. 5B). In addition, since small pieces (usually sand) fall from the sieve, the medium pieces and large pieces passing through the gap between the roller crushing teeth and the sieve plate are sieved, which is efficient.

[Brief description of the drawings]

FIG. 1 is a side view.

FIG. 2 is a longitudinal sectional front view.

FIG. 3 is a plan view of a sieve plate.

FIG. 4 is a side view of an embodiment in which the distance between the sieve plates can be adjusted.

FIG. 5 is a side view showing an adjusted state.

FIG. 6 is a front view of the sieve plate adjustment mechanism of FIG. 4 from which the adjustment mechanism has been removed;

FIG. 7 is a front view of an eccentric pin used in the crusher of the present invention.

FIG. 8 is a side view of the same.

FIG. 9 is a side view showing a use state.

FIG. 10 is a diagram showing another example of use.

FIG. 11 is a side view of a conventionally known crusher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2, 3 Roller 4, 5 Crushing tooth 6, 7 Roller shaft 8 Sieve plate

Claims (3)

[Claims] 1. A two-axis roller is mounted on a bucket type or stationary type body, and a plurality of crushing teeth are protruded from a peripheral surface of the two-axis roller to form a roller with two-axis crushing teeth. Demolition crusher with a grid and a mesh-shaped sieve plate. 2. The dismantling crusher according to claim 1, wherein the distance between the biaxial crushing tooth roller and the sieve plate can be freely adjusted. 3. The dismantling crusher according to claim 1, wherein a sieve plate is exchangeably installed on the body.