JPH06210192A - Crusher - Google Patents

Abstract

PURPOSE:To prevent the crusher from being enlarged in size and to precisely adjust the grain size of the product over a wide range. CONSTITUTION:A raw material inlet 2 and the upper outlet 3 and lower outlet 4 for the crushed material are provided, an upper grating 10 is furnished to the upper outlet 3 and a lower grating 30 to the lower outlet 4 in a casing 5. A rotor 7 provided with a hammer 6 is pivoted in a crusher 1, a vane 16 is furnished to the upper grating 10 to adjust the opening degree of a grating hole 15, and a damper 31 moved along the lower surface of the lower grating 30 and used to open or close the grating hole 33 is furnished to the lower grating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher for crushing scrap such as scrapped vehicles and metal waste.

[0002]

2. Description of the Related Art Scraps such as scrapped vehicles and metal waste are crushed by a so-called rotary impact type crusher, a hammer crusher, and scrap iron is crushed and sorted to a predetermined size, and then an auxiliary material for ironworks, etc. Is used as. However, in recent years, the demand from scrap iron users such as steel mills has diversified the desired range such as particle size and particle size distribution for these auxiliary raw materials, and thus it has been desired to meet such needs.

To meet such needs, conventionally, an upper discharge port of a crusher is provided with a swingable repulsion plate and a discharge door having a through hole, and the grain size is adjusted by operating an inclination angle of the discharge door. (Japanese Examined Patent Publication No. 58-20317) or an emission lattice and an auxiliary lattice that can be independently rotated (Japanese Patent Publication No. 3-4).
No. 4816), or the lattice of the lower discharge port is a multi-layer, and the lattice can be swung to open and close the lattice (JP-A-63-3684).
No. 6) is used.

[0004]

However, although the particle size and particle size distribution of the product can be adjusted to some extent only by operating the tilt angle of the discharge door of the upper discharge port and the auxiliary grid, it is possible to accurately adjust the particle size in a wide range. It is difficult. Further, in the case where the lattice of the lower discharge port has a multi-layer structure, and the lattice can be swung to open and close the lattice, it is necessary to secure a large swiveling space, and the external shape of the crusher becomes large, which is uneconomical.

The present invention solves such a problem in a crusher, and the particle size and particle size distribution of a product can be precisely adjusted in a wide range according to the needs of users, and the size of the crusher can be increased. The object is to provide a crusher that can be prevented.

[0006]

According to the present invention, a raw material charging port, an upper discharging port for discharging crushed materials and a lower discharging port are provided, and the upper discharging port is provided with an upper lattice and the lower discharging port is provided with a lower lattice. Inside the casing, a vane for adjusting the opening of the lattice holes is installed in the upper lattice of a crusher that supports a rotor equipped with a hammer, and an opening and closing damper that moves along the lower surface of the lower lattice to open and close the lattice holes. By providing the above, the above problems in the crusher can be solved.

In order to discharge the foreign matter caught between the lower grid and the opening / closing damper, a guide rail is mounted on the lower surface of the side of the opening / closing damper, and a supporting roller for movably supporting the guide rail is provided on the inner wall of the casing. The guide rail has a lower surface formed with a recess for separating the opening / closing damper from the lower surface of the lower grid at a position where the opening / closing damper opens the grid hole.

[0008]

The scrap material such as a scrap car, which is charged from the material charging port, is crushed by the hammer by the rotation of the rotor and is discharged from the lower discharge port or the upper discharge port through the lattice holes of the lower grid or the upper grid. The opening of the lattice hole of the lower lattice can be adjusted from fully closed to fully opened by moving the opening / closing damper. When this lattice hole is fully opened, conventional crushed particles having a crushed particle size are discharged through the lattice hole, and when the lattice hole is fully closed, the object to be crushed is repeatedly crushed and discharged only through the lattice hole of the upper lattice. The grain size of the crushed material discharged through the lattice holes of the upper lattice is controlled by the inclination angle of the upper lattice, and by adjusting the rotation angle of the vane, the granularity that meets the demand can be produced with high accuracy. .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view of the overall structure of a crusher according to an embodiment of the present invention, FIG. 2 is an explanatory view of the structure of vanes, and FIG.
Is a plan view of the drive unit for the upper grid and vanes, FIG. 4 is a side view of the drive unit for the upper grid and vanes, FIG. 5 is an explanatory view of the configuration of the lower grid and the opening / closing damper, and FIG. 6 is an explanation of the mounting state of the support rollers. It is a figure.

As shown in FIG. 1, the crusher 1 of this embodiment
A rotor 7 having a hammer 6 is pivotally supported by a rotor shaft 8 in a casing 5 having a raw material inlet 2, an upper outlet 3 for discharging crushed materials, and a lower outlet 4. An upper lattice 10 is rotatably supported by an upper lattice shaft 11 at the upper discharge port 3, and a foreign matter removing damper 12 is pivotally supported by a damper shaft 13 below the upper lattice shaft 11. ing.
The upper discharge port 3 is connected to a discharge duct 14.
The upper grid 10 has vanes 1 for adjusting the opening of the grid holes 15.
6 is provided.

As shown in FIG. 2, the vane 16 is pivotally supported by a vane rotating shaft 17, and the vane rotating shaft 17 is provided with a vane rotating arm 19 via a shaft link 18A, a connecting link 18B and an intermediate link 18C. And the base end of the vane rotating arm 19 is fixed to a boss 20 fitted on the outer circumference of the upper lattice shaft 11. As shown in FIGS. 3 and 4, one end of the upper lattice shaft 11 and the boss 20 extends outside the casing 5, and a shaft arm 21 fixed to the upper lattice shaft 11 and a bracket 26 fixed to the casing 5 are provided. A lattice rotating cylinder 22 is attached between the two, and a boss arm 23 fixed to the boss 20 and a shaft arm 21 are attached.
A vane rotation cylinder 25 is attached between the cylinder seat 24 and the cylinder seat 24.

A lower lattice 30 is fixed to the lower outlet 4, and an opening / closing damper 31 is provided below the lower lattice 30. A damper opening / closing cylinder 32 is connected to the opening / closing damper 31, and the expansion / contraction of the damper opening / closing cylinder 32 moves along the lower surface of the lower grid 30 to open / close the grid hole 33. As shown in FIGS. 5 and 6, a guide rail 34 is mounted on the lower surface of the side of the opening / closing damper 31, and a support roller 35 that movably supports the guide rail 34 is provided on the inner side wall of the casing 5. It is arranged at a predetermined interval. The opening / closing damper 31 closes the lattice hole 33 when the damper opening / closing cylinder 32 is at the intermediate position, and when the damper opening / closing cylinder 32 extends and contracts, the lattice hole 33.
The opening / closing damper 31 is separated from the lower surface of the lower grid 30 at the position where the damper opening / closing cylinder 32 extends to open the grid hole 33 on the lower surface of the guide rail 34 of the opening / closing damper 31. A recess 37 is formed.

Scrap materials such as scrap cars, which are charged from the material charging port 2, are crushed by the hammer 6 by the rotation of the rotor 7, and the lattice holes 33 and 15 of the lower lattice 30 or the upper lattice 10 are crushed.
Through the lower discharge port 4 or the upper discharge port 3.
The lattice hole 33 of the lower lattice 30 is provided with the damper opening / closing cylinder 32.
The opening can be adjusted from fully open to fully closed by expanding and contracting from the shortened position to the intermediate position and moving the opening / closing damper 31. When the lattice holes 33 are fully opened, conventional crushed particles having a crushed particle size are discharged through the lattice holes 33 and 15. When the lattice holes 33 are fully closed, the crushed object is repeatedly crushed and discharged only from the lattice holes 15 of the upper lattice 10. It The inclination angle of the upper lattice 10 is adjusted by expansion and contraction of the lattice rotating cylinder 22, and the particle size of the crushed material discharged through the lattice holes 15 of the upper lattice 10 is controlled by the inclination angle of the upper lattice 10. Further, the rotation angle of the vane 16 is adjusted by the expansion and contraction of the vane rotation cylinder 25, the particle size of the discharged crushed object is adjusted with higher accuracy, and the particle size according to the demand is produced.

The opening / closing damper 31 is moved in a state of approaching the lower surface of the lower grid 30, but foreign matter may be caught between the lower grid 30 and the opening / closing damper 31. At this time, when the damper opening / closing cylinder 32 is extended, the concave portion 37 of the lower surface of the guide rail 34 reaches the position of the support roller 35 and the opening / closing damper 31 is separated from the lower surface of the lower lattice 30, so that the foreign matter caught in the lower portion moves downward. Can be dropped.

[0015]

As described above, in the crusher of the present invention, since the opening of the lower grid, the inclination angle of the upper grid and the rotation angle of the vane can be adjusted, the particle size and particle size distribution of the product can be adjusted. Can be adjusted in a wide range with high precision according to the user's needs, and the opening and closing damper moves along the lower surface of the lower grid to open and close the grid holes, so there is no need to secure a large swivel space and a large crusher Can be prevented.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an overall configuration of a crusher that is an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a configuration of a vane.

FIG. 3 is a plan view of an upper grid and a drive unit of a vane.

FIG. 4 is a side view of an upper grid and a drive unit of a vane.

FIG. 5 is an explanatory diagram of a configuration of a lower grid and an opening / closing damper.

FIG. 6 is an explanatory view of a mounting state of a support roller.

[Explanation of symbols]

 1 Crusher 2 Raw material input port 3 Upper discharge port 4 Lower discharge port 5 Casing 6 Hammer 7 Rotor 8 Rotor shaft 10 Upper lattice 15 Lattice hole 16 Vane 30 Lower lattice 31 Open / close damper 33 Lattice hole 34 Guide rail 35 Support roller 37 Recess

Claims (2)

[Claims] 1. A casing is provided with a raw material charging port, an upper discharging port for discharging crushed materials, and a lower discharging port, the upper discharging port having an upper lattice and the lower discharging port having a lower lattice, and a hammer provided therein. A crusher supporting a rotor, wherein the upper grid is provided with a vane for adjusting the opening of the grid hole, and the lower grid is provided with an opening / closing damper that moves along the lower surface of the vane to open and close the grid hole. A crusher characterized by. 2. A guide rail is mounted on a lower surface of a side portion of the opening / closing damper, and a support roller for movably supporting the guide rail is disposed on an inner wall of the casing. The opening / closing damper has a lattice hole on the lower surface of the guide rail. The crusher according to claim 1, wherein a recess is formed to separate the opening / closing damper from the lower surface of the lower lattice at the position where the crusher is opened.