JPH0125622B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for correcting the crushing surface of a crusher and a crusher (hereinafter simply referred to as a crusher) that crush coarsely crushed material into fine particles or powder.

(Conventional disadvantages) Conventional crushers use various types such as cone crushers, but all have the disadvantage that the crushing part wears out quickly due to impact and friction, so the crushing part that makes up the crushing surface needs to be replaced. The need arose. There is also a liner type that makes it easy to replace a worn grinding section, but this has the problem of being wasteful and costly because the entire grinding section must be replaced even if there are still areas with little wear.

(Purpose of the Invention) Therefore, the present invention aims to provide a device that can make effective use of the crushing section by partially adjusting it according to the wear condition of the crushing surface without replacing it, thereby reducing the cost of the crushing section. Moreover, it can be easily adjusted.

(Example) Hereinafter, details of the present invention will be described with reference to the drawings.

The crushing section S of this example shown in FIG. 1 is constructed by assembling a large number of square rod-shaped hard bodies 1,... made of wear-resistant steel in parallel in three stages, and the end surface 1a of each hard body 1 is inclined. Grind the end face of the rod group by
It is called Sc. Then, the rod group is bound and fixed by bolts 3 on both sides using upper and lower tightening fittings 2.
Therefore, by loosening the bolts 3, each hard body 1 can move forward and backward in the direction of its arrangement, and can be inserted and removed.

As shown in Fig. 2, an arm 4 is provided with a pair of crushing parts S in this example facing each other, one of the crushing parts Sa is immovably fixed to the machine body, and the other crushing part Sb is swingably connected to the machine body. A rod 5a of a hydraulic cylinder 5 provided on the machine body is fixed to a mounting member 6 connected between the clamping fittings 2 of the crushing section Sb. As a result, the crushing section is activated by the operation of the hydraulic cylinder 5.
Sb swings in a direction perpendicular to the opposing crushing surface Sc. Therefore, as shown in Fig. 3, when the gravel K falls from the hopper 7 between the crushing surfaces Sc, the vibration of the crushing part Sb crushes the gravel K strongly between the crushing surface Sc and the gravel, resulting in fine particles. It becomes Ka and falls.

In this example, by crushing gravel K, both crushed surfaces are
If the Sc wears unevenly as shown in Fig. 4 and becomes unusable, all you have to do is loosen the fastening fitting 2 and push the hard part of the worn area toward the grinding surface. The pulverized surface Sc of what remains is completely corrected and becomes suitable for use. In reality, as shown in Fig. 4, the hard body 1 is placed on the backing material 8 with the backing material 8 interposed between the opposing crushing surfaces Sc.
You can easily adjust it by pushing it out until it touches the.

(Configuration of the Invention) Although this example is configured as described above, the present invention is not limited to this. For example, regardless of the size and shape of the hard bodies forming the crushing surface, there are no limitations on the state of collection of the hard bodies as the crushing part. In addition, the shape of the crushing part or the crushing surface may be any shape as long as it is passed through a crusher.
The crushing section may have a structure in which hard bodies are bundled together as shown in the figure.

In short, the present invention aggregates wear-resistant hard materials to form the crushing surface of the crusher, and pushes out the hard materials forming the crushed surface in the worn parts toward the crushing surface side, thereby shaping the entire crushing surface into a predetermined shape surface. This is a method for correcting a grinding surface in a grinder, which is characterized by correcting the grinding surface in a grinder.

(Effects of the Invention) Therefore, according to the present invention, since the crushing section is formed by gathering the hard bodies, even if the crushing surface is worn out, the crushing surface can be quickly corrected by pushing the hard bodies toward the crushing surface. It has the great effect of allowing the hard body to be used until it becomes short, and it can be easily adjusted to a new crushing surface without having to replace the crushing surface unlike conventional methods. This is a revolutionary invention.

[Brief explanation of drawings]

The drawings are for explaining the present invention, and Fig. 1 is a perspective view of a crushing section in which hard bodies are assembled, Fig. 2 is a plan view of a crusher using the same, and Fig. 3 shows its crushing state. FIG. 4 is a longitudinal sectional view showing the state of wear of the grinding surface, and FIGS. 5 and 6 are longitudinal sectional views of a pulverizer using another example. S, Sa, Sb: crushing part, Sc: crushing surface, 1: hard body, 1a: end face of hard body, 2: tightening fitting.

Claims (1)

[Claims] 1 The grinding surface of the crusher is formed by gathering wear-resistant hard materials, and the hard materials forming the grinding surface in the worn parts are pushed out toward the grinding surface to correct the entire grinding surface to a predetermined shape. Features: A method for correcting the grinding surface in a grinder.