JP2002292295A - Rotor for impact crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an impact crusher rotor to/from which striking plates are easily attached/detached without requiring any special device or space and also to simplify the fitting structure of the striking plates. SOLUTION: This impact crusher rotor is provided with rotor plates 1 fixed to a horizontal shaft, several fitting grooves 2 formed in each of the rotor plates 1 at its periphery so that the respective corresponding fitting grooves 2 of all rotor plates 1 are arranged in the longitudinal direction of the shaft at equal intervals to form several rows of the fitting grooves 2, projecting sections 3 and 4 projectingly formed on the both sides of an open end of each of the fitting grooves 2 respectively, so as to be opposite to each other, a striking plate 7 inserted into and fitted to each of the rows of the fitting grooves 2, engagement recessed parts 5 and 6 formed in the both projecting sections 3 and 4 respectively, so as to be opposite to each other, engagement grooves 8 and 9 formed in the both side faces of the striking plate 7 in the longitudinal direction of the shaft, and two fixation rods 10 and 11 withdrawably inserted into two holes respectively, wherein the holes are formed by the engagement grooves 8 and 9 in the both side faces of the striking plate 7 inserted into each of the rows of the fitting grooves 2, and the engagement recessed parts 5 and 6 in the both projecting sections 3 and 4, being opposite to the engagement grooves 8 and 9 respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotor for an impact crusher, and more particularly to a rotor for an impact crusher having an improved structure for mounting a striking plate.

[0002]

2. Description of the Related Art Conventionally, as a rotor of an impact-type crusher,
The thing described in JP-B-61-32061 is known. The rotor of this impact crusher has a plurality of mounting grooves arranged at equal intervals on the outer periphery of a plurality of rotor plates fixed to a horizontal shaft and arranged in the longitudinal direction of the shaft. A striking plate in which a mountain-shaped (trapezoidal) protruding portion is protrudingly opposed to each other, and two mountain-shaped (trapezoidal) protruding lines extending in the longitudinal direction of the shaft are provided on both sides in the mounting grooves of each row. A plurality of mounting grooves are arranged in the longitudinal direction of the shaft on the outer periphery of a plurality of rotor plates fixed to a horizontal shaft, or a plurality of mounting grooves fixed on a horizontal shaft. The mounting grooves are provided at equal intervals, and convex portions are protruded from the opening end portions on both sides of each mounting groove so as to face each other. On both sides of the mounting grooves in each row, two ridges (trapezoids) extending in the longitudinal direction of the shaft are provided. The holder provided with the ridges on the surface is opposed to the holder by engaging the grooves provided on the back with the protrusions. Wear and, between each row of holders,
A striking plate provided with two mountain-shaped (trapezoidal) ridges extending on the both sides extending in the longitudinal direction of the shaft is provided by inserting one of the two ridges on both sides between the two ridges of the holder on both sides. It is fitted and engaged. In the rotor of this impact type crusher, the striking plate is pushed from the side between the holders, and by its rotation, the striking plate moves radially outward due to centrifugal force. It is firmly clamped by the wedge action between the strips. However, in the rotor of the impact-type crusher having the above configuration, the impact plate must be attached and detached from the side, and there is a problem that a space for attachment and detachment and an exchange device are required.

On the other hand, in order to solve the above problem, a plurality of mounting grooves for mounting a striking plate having ridges or grooves on both sides are formed on the outer periphery of a plurality of rotor plates fixed to a horizontal shaft. In the rotor of the impact crusher arranged at equal intervals in the direction, the rotor is fixed to one side of the mounting groove in each row or mounted so as to be able to advance and retreat with respect to the other side, and is the same as the impact plate. The holder has a length of about the same, and can be engaged with a ridge or a concave groove on one side of the impact plate, and is formed on the other side of each mounting groove so as to be aligned with the longitudinal direction of the shaft so as to be aligned with the longitudinal direction of the shaft. Connecting rods movably mounted on the other side of the mounting groove in each row and having the same length as the holder, and fixed to one side of each rotor plate on each connecting rod, and impact Grooves or protrusions engageable with ridges or grooves on the other side of the plate A plurality of holding pieces having a wedge-shaped insertion portion that can be inserted between the other side surface of the hitting plate and the inclined surface of the mounting groove, and the insertion portion of the holding piece has the other side surface of the hitting plate and the inclined surface of the mounting groove. There is known a rotor of an impact-type crusher provided with a locking means for locking the connecting rod in the longitudinal direction while being inserted between the rotors (see Japanese Patent No. 2934237).

In the rotor of this impact crusher, since the impact plate is attached and detached by moving it up and down, no special exchanging device is required for exchanging the impact plate. It is easy to perform and does not require space on the machine side for replacement. However, in the rotor of the impact type crusher, although the impact plate can be easily attached and detached without requiring any special device and space,
In addition to the need to machine the inclined surface and the long hole on the rotor plate, there is a problem that various kinds of components such as a connecting rod, a holding piece, and a locking means are required.

Accordingly, the present invention provides a rotor of an impact-type crusher which can easily attach and detach the impact plate without requiring any special device or space, and can simplify the mounting structure of the impact plate. With the goal.

[0006]

In order to solve the above-mentioned problems, a rotor of a first impact crusher according to the present invention comprises a plurality of mounting grooves formed on the outer periphery of a plurality of rotor plates fixed to a horizontal shaft. Along with being arranged in the longitudinal direction at equal intervals, the impact type crushing machine is configured such that the projections are protrudingly opposed to the opening ends on both sides of each mounting groove, and the striking plates are attached to the mounting grooves in each row. a rotor, while providing facing both sides of the engaging recess in the convex portion of each of the mounting groove, wherein is provided a longitudinal engagement groove of the shaft on both sides of each striker plate, is inserted into the mounting groove of each column A fixing rod is inserted into a hole formed by the engaging groove on both side surfaces of the hitting plate and the engaging concave portions of the convex portions on both sides facing the engaging plate, respectively, so that the fixing rod can be detachably inserted.

[0007] The rotor of the second impact-type crusher has a plurality of rotor plates fixed on a horizontal shaft.
A plurality of mounting grooves are arranged in the longitudinal direction of the shaft and provided at equal intervals, convex portions are protrudingly opposed to the opening ends on both sides of each mounting groove, and a striking plate is attached to the mounting grooves in each row. In the rotor of the impact type crusher, on both sides of each of the mounting grooves,
The grooves provided on the back surface are engaged with the projections to mount the holders facing each other, and the engaging grooves in the longitudinal direction of the shaft are provided on the surfaces of the holders on both sides so as to face each other. Are provided with engaging grooves in the longitudinal direction of the shaft, and are fixed to holes formed by the engaging grooves on both side surfaces of the striking plate inserted into the mounting grooves of each row and the engaging grooves of the holders on both sides opposed thereto. rod respectively, characterized in that inserted tuning slide capable.

[0008]

In the rotors of the first and second impact-type crushers of the present invention, the striking plate and the rotor plate or the holder are disengaged by inserting and removing the fixed rods on both sides, so that the up-down direction ( detached from the radial direction) of the rotor is possible.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a main portion showing an example of an embodiment of a rotor of an impact crusher according to the present invention. In FIG. 1, reference numeral 1 denotes a plurality (eg, four in FIG. 1 of which only one is shown, for example, four) of a regular polygonal shape (for example, regular hexagon) constituting a part of a rotor capable of rotating forward and backward. The rotor plates 1 are fixed to a horizontal shaft (not shown) at equal intervals in the longitudinal direction (in FIG. 1, the direction perpendicular to the paper).
On the outer periphery of each rotor plate 1, a plurality of mounting grooves 2 are located at the corners of each rotor plate 1, and are arranged at equal intervals in the longitudinal direction of the shaft in order to mount a striking plate described later. Protrusions 3 and 4 are protrudingly provided at the open ends on both sides of each mounting groove 2.
The engagement of the semicircular on both sides of the convex portions 3 and 4 recesses 5,6
Are provided facing each other.

In each of the mounting grooves 2, a striking plate 7 having a rectangular plate shape having a length appropriately larger than the interval between the outermost rotor plates 1 extends in the longitudinal direction of a shaft provided at the center of both side surfaces. Circular holes 10 and 11 formed by the existing semicircular engaging grooves 8 and 9 and the engaging concave portions 5 and 6 of the convex portions 3 and 4 on the opposite sides thereof, and can be inserted and removed by circular fixing. Rods 12, 13
The mounted by inserting each. The striking plate 7 is provided in a point-symmetrical shape in a front view so that it can be used upside down.

[0011] In the rotor of the above-mentioned impact type crusher,
As shown in FIG. 1, the striking plate 7 attached to the mounting groove 2
To remove the striking plate 7, hold the striking plate 7 with a normal lifting machine such as a chain block or a hoist crane, and then pull out the fixed rods 12 and 13 on both sides in the longitudinal direction of the shaft. Lift up.
The mounting of the striking plate 7 is performed in a procedure reverse to the procedure described above.

[0012] hole 10 is formed according to the rotor of an impact crusher of the above construction, the engaging recess 5, 6 of the convex portions 3 and 4 in the engagement groove 8, 9 and the rotor plate 1 of the striking plate 7 ,
The impact plate 7 and the rotor plate 1 are disengaged from each other by inserting and removing the fixed rods 12 and 13 with respect to 11, and the impact plate 7 can be detached from the vertical direction (radial direction of the rotor). This can be easily performed without requiring any special device or space, and the mounting structure of the striking plate 7 can be made extremely simple as compared with the conventional one.

FIG. 2 is a front view of a main portion showing another embodiment of the rotor of the impact crusher according to the present invention. In the drawing, reference numeral 21 denotes a plurality of (for example, four, although only one is shown in FIG. 2, for example, four) rotor plates of a regular polygonal shape (for example, regular hexagon) constituting a part of the rotor capable of rotating forward and backward. The rotor plates 21 are fixed to a horizontal shaft (not shown) at regular intervals in the longitudinal direction (in FIG. 2, the direction perpendicular to the paper). The outer periphery of each rotor plate 21, for mounting the striking plate to be described later, a plurality of mounting grooves 22, so as to be positioned at a corner of each rotor plate 21 and equidistantly arranged in the longitudinal direction of the shaft Protrusions 23 and 24 are provided so as to face each other at the opening ends on both sides of each mounting groove 22.

On both sides of the mounting grooves 22 in each row, the lengths are appropriately larger than the distance between the outermost rotor plates 21 and extend in the longitudinal direction of the shaft over their entire length on opposing surfaces. semicircular engaging grooves 25, 26 holders 27 and 28 provided is attached to the rotor plate 21 by a groove 29, 30 provided over its entire length on the rear surface is engaged with the protrusion 23, 24 I have. And, between the holder 27 and 28 opposing each column, the striking plate 31 exhibiting a rectangular plate shape substantially the same length as the holder 27 and 28, extending in the longitudinal direction of the shaft provided at the center of both sides Semi-circular engagement grooves 32, 33 and the holders 2 on both sides facing them.
Circular hole 3 formed in the engaging groove 25, 26 of 7, 28
4 and 35 are attached by inserting detachable circular fixed rods 36 and 37, respectively. The striking plate 31 is provided in a point-symmetrical shape in a front view so that it can be used upside down. According to the rotor of the impact-type crusher having the above-described configuration, the same operation and effect as those of the above-described embodiment can be obtained, and the description thereof is omitted.

In the above-described embodiments,
The engaging grooves 8, 9, 32, 33 of the striking plates 7, 31 and the engaging concave portions 5, 6 of the convex portions of the rotor plate 1 or the holders 27, 28.
Holes are formed in the engagement groove 25 10,11,3
Was 4,35 circular, and a fixed rod 12,13,36,37 to be inserted and removed thereto there has been described a case where a circular, but the invention is not limited thereto, the holes and oval or square, etc. and a fixed rod may pluggable oval or rectangular or the like thereto. Also, fixed rods 12, 13,
The length of the striking plates 36, 37 is not limited to one that is substantially equal to the length of the striking plates 7, 31, but may be divided into a plurality of lengths. Insertion and removal can be easily performed. Furthermore, the rotor is not limited to possible forward and reverse rotations, the may be configured to rotate in one direction is a matter of course.

[0016]

As described above, according to the rotors of the first and second impact-type crushers of the present invention, the connection between the striking plate and the rotor plate or the holder is achieved by inserting and removing the fixed rods on both sides. take off made, since it is possible to detached from the vertical direction of the striking plate (rotor radial direction), it is possible to easily carry out without requiring any special equipment or space detachable blow plate, as compared with the conventional The structure for mounting the impact plate can be made extremely simple.

[Brief description of the drawings]

FIG. 1 is a front view of a main part showing an example of an embodiment of a rotor of an impact crusher according to the present invention.

FIG. 2 is a front view of a main part showing another example of the embodiment of the rotor of the impact crusher according to the present invention.

[EXPLANATION OF SYMBOLS] 1 rotor plate 2 mounting groove 3 protrusion 4 projecting portion 5 engaging recesses 6 engaging recesses 7 striking plate 8 engaging groove 9 engaging groove 10 holes 11 holes 12 fixed lever 13 fixed rod 21 rotor plate 22 mounting groove 23 protrusion 24 protrusion 25 engaging groove 26 engaging groove 27 holder 28 holder 29 groove 30 groove 31 striking plate 32 engaging groove 33 engagement groove 34 hole 35 hole 36 fixed rod 37 fixed rod

Continuing on the front page (72) Inventor Toshihide Kamase 1780 Kamikono, Yachiyo-shi, Chiba Prefecture Inside the Yachiyo Plant, Kawasaki Heavy Industries, Ltd. Inside the factory (72) Inventor Junshiro Ohashi 1780 Kamikono, Yachiyo-shi, Chiba F-term in Kawageshi Yachiyo Engineering Co., Ltd. 4D065 AA04 BB04 EB01 EC09

Claims (2)

[Claims] 1. A plurality of mounting grooves are arranged at equal intervals on the outer periphery of a plurality of rotor plates fixed to a horizontal shaft in the longitudinal direction of the shaft, and convex portions are formed at open ends on both sides of each mounting groove. In the rotor of the impact crusher in which the striking plates are attached to the mounting grooves of each row, engaging concave portions are provided opposite to the convex portions on both sides of each of the mounting grooves, The engaging grooves in the longitudinal direction of the shaft are provided on both side surfaces of the striking plate, and the engaging grooves on both side surfaces of the striking plate inserted into the mounting grooves of each row and the engaging concave portions of the convex portions on both sides facing them. A rotor for an impact-type crusher, characterized in that fixed rods are respectively inserted into holes formed so as to be able to be removed. 2. A plurality of mounting grooves are arranged at equal intervals on the outer periphery of a plurality of rotor plates fixed to a horizontal shaft and arranged in the longitudinal direction of the shaft. the opposite projecting, in the rotor of an impact crusher made by attaching the striker plate in the mounting grooves of each row, the both sides of each attachment groove, by engaging a groove provided on the back surface to the protrusion holder While facing each other, and providing longitudinal engagement grooves of the shaft on the surfaces of the holders on both sides,
An engaging groove in the longitudinal direction of the shaft is provided on both sides of each of the striking plates, an engaging groove on both sides of the striking plate inserted into the mounting groove of each row, and an engaging groove of the holder on both sides opposed thereto. A rotor for an impact-type crusher, characterized in that fixed rods are inserted into the holes formed by the plugs so that they can be removed.