DE1921014U - PLANING CHISEL. - Google Patents

Description

Dipl.-lng. A. Spalthoff Essen, May 5, 1965

Essen, Pelmanstr. 31 16 564 Sp./Wo. Telephone 772008

Company HWP hard metal and hard metal tool factory Bayer-Müller GmbH. & Co. «Essen, Pelmanetraße 3 5

"Hotel chisel"

The innovation "refers to a planing chisel, which can be inserted into the plane body by means of a cone.

So-called coal planers are used in mining enable a peeling extraction of the coal. The coal plows are attached to the coal face by an endless rope or chain pulled back and forth and pressed against it at the same time. In doing so, those covered with weld-on alloy or hard metal peel off Chisel a certain amount of coal out of the solid front. The detached coal is carried away by a conveyor.

It is already known to use the individual planing chisels in the planer body by means of a cone. Wear out the chisels are released from the plane body and the cutting edge with a new layer of weld-on alloy or hard metal coated. These planing chisels have proven themselves quite well, but they have the major disadvantage that a change in the working edges or the reconditioning of the planing chisel, as is often the case underground

require, is not readily possible, but that this requires a replacement of the entire planing chisel, which however, it is a time consuming and costly affair *

Based on this state of the art, the innovation is based on the task of creating a planing chisel, which is set up and handled in a simple manner and, if necessary, can be replaced in a comparatively quicker time can be.

According to the innovation, this is achieved in that a foot is placed on the free end of the conical base body, which has a dovetail-shaped K ^- Ut, the side walls of which are uniformly spaced over their entire length, into which a correspondingly designed insert chisel rests against a Abutment is inserted. The foot placed on the conical base body is the same for all chisels. It is thus now possible to use different bit bits without removing or changing the base body. This design means that the rake angle or wedge angle or the length and width of the knife can be varied without having to change the base body.

Handling is extremely simple, since the actual chisel is only pushed into the foot of the base body.

Another advantage is that the old, used conical base bodies are now also used again can be, since only the actual chisel burned down

and the newly trained foot to be put on needs.

The abutment is advantageously bevelled Edge formed at the end of the dovetail-shaped courage, against which the actual chisel is pressed.

According to a further feature of the innovation, the foot point on the conical base body and the chisel on its into the Dovetail-shaped fury of the foot pushed-in area each has a hole, which is penetrated by a clamping sleeve are. In this way, a perfect hold of the chisel in the foot of the base body is ensured «The clamping sleeve can otherwise very easily solved if necessary, so that a chisel with a different wedge angle or rake angle is used can be.

An embodiment of the innovation is based on the drawing explained in more detail, namely show

Fig. 1 the upper part of the base body with foot and chisel in view,

Fig. 2 is a side view of Figs

Fig. 3 is a side view with another Execution of a chisel,

1 with the actual base body is referred to, which is ^{inserted by means of a cone 1} in the planer body, not shown.

The foot 3 is placed on the free end 2 of the base body 1, for example by welding, as indicated at 4. the

Base 3 has a dovetail-shaped hat 5, the side walls of which are at a constant distance over their entire length own.

In the dovetail-shaped groove 5 is the actual one Chisel 6 inserted, the tip 7 of which is made of weld-on alloy or hard metal a beveled edge at the end of the dovetail groove 5 is formed. The chisel 6 is at its insertion end designed according to the dovetail-shaped groove 5 »

The foot 3 and the chisel 6 each have a hole 9 * which are penetrated by the clamping sleeve 10, so that a flawless hold that can be easily released at any time is guaranteed·

As can be seen in particular from FIGS. 2 and 3, it is now possible to use a suitably shaped one as required Use chisel 6 in the foot 3, so that an adaptation to the most varied of underground conditions is easy is possible. All that is required to insert a new chisel is loosening the clamping sleeve 10 and pulling out the chisel 6 and inserting a new chisel 6, whereupon the clamping sleeve is reinserted.

Claims (3)

«· ■ 5 - S ouse claims; 1) planing chisel which can be inserted into the planer body ^{by means of a cone 1, characterized in that}
A foot (3) is placed on the free end of the conical base body (1), which has a dovetail-shaped groove (5), the side walls of which are uniformly spaced over their entire length, with a correspondingly designed chisel (6) under contact is inserted on an abutment (8). 2) planing chisel according to claim 1, characterized in that the abutment (8) of a beveled edge at the end the dovetail hat (5) is formed. 3) planing chisel according to claim 1, characterized in that the foot (3) on the conical Srundkörper (1) and the Chisel (6) on his tapered hat (5) of the foot (3) inserted area each with a hole (9) have, which are penetrated by a clamping sleeve (10). the