DE238244C

DE238244C -

Info

Publication number: DE238244C
Application number: DENDAT238244D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

-. JKi 2.38244-KLASSE 5 b. GRUPPE -. JKi 2.38244- CLASS 5 b. GROUP

INGERSOLL-RAND COMPANY in NEW YORK.INGERSOLL-RAND COMPANY in NEW YORK.

zeitweise verbindenden Regelungsorgan zwischen den beiden Zylindern.temporarily connecting regulating element between the two cylinders.

Patentiert im Deutschen Reiche vom 2. Juni 1909 ab.Patented in the German Empire on June 2, 1909.

Es sind Gesteinhammerbohrmaschinen bekannt, bei denen zwischen dem Nachstell- und dem Hammerzylinder ein Regelungsorgan, vorzugsweise in Gestalt eines Verteilungshahnes, eingesetzt ist, der die Druckluftzuleitung mit diesen beiden Zylindern und jeden Zylinder für sich mit der Außenluft zeitweise verbindet. Bei derartigen Gesteinhammerbohrmaschinen wird der Bohrer bis zu seinem richtigen Einarbeiten in das Gestein infolge der vollständig geöffneten Druckluftzuleitung schon unter vollem Drucke gegen das Gestein heranbewegt, er prallt demzufolge leicht zurück und verrichtet nur allmählich Arbeit.Rock hammer drills are known in which between the adjustment and the hammer cylinder a regulating device, preferably in the form of a distribution valve, is used, the compressed air supply with these two cylinders and each cylinder for temporarily combines with the outside air. With such rock hammer drills the drill is completely up to its proper incorporation into the rock as a result of the opened compressed air supply already moved against the rock under full pressure, as a result, it rebounds easily and does work only gradually.

■ Zweck der Erfindung ist, dieses unter der Einwirkung des vollen Druckes erfolgende Zurückprallen des Bohrers vom Gestein dadurch zu beseitigen, daß bei Beginn der Bohrarbeit der Bohrer nur mit vermindertem Drucke an das Gestein herangeführt wird. Zu diesem Zwecke wird der Raum im Hammerzylinder mit dem Räume im Nachstellzylinder zeitweise verbunden und dabei die Preßluft gedrosselt. . Zur Erzielung dieser Wirkung ist bei der Gesteinhammerbohrmaschine, die ebenfalls mit einem die Druckzuleitung mit dem Nachstell- und dem Hammerzylinder und jeden Zylinder für sich mit der Außenluft zeitweise verbindenden Regelungsorgan ausgestattet ist, in diesem Regelungsorgan, das beispielsweise die Gestalt eines Hahnes erhält, außer den die oben angegebenen Verbindungen ermöglichenden Kanälen noch ein Kanal angeordnet, durch den die im Hahngehäuse liegenden und nach dem Nachstell-,und Hammerzylinder führenden Kanäle miteinander verbunden werden können,The purpose of the invention is to prevent this rebounding under the action of full pressure to remove the drill from the rock by only applying reduced pressure at the beginning of the drilling work the rock is brought in. For this purpose, the space in the hammer cylinder is included temporarily connected to the spaces in the adjusting cylinder and thereby throttled the compressed air. . To achieve this effect, the rock hammer drill, which is also with one the pressure supply line with the adjustment and hammer cylinder and each cylinder for is equipped with the regulating body that temporarily connects to the outside air, in this regulating body, which, for example, is given the shape of a rooster, in addition to those given above Connections enabling channels still arranged a channel through which the in the tap housing channels lying and leading to the adjustment and hammer cylinder can be connected,

Eine Ausführungsform der Gesteinhammerbohrmaschine von der vorstehend gekennzeichneten Anordnung ist in Fig. 1 im Längsschnitt beispielsweise dargestellt. Die Fig. 2,3 und 4 zeigen die gegenseitige Lage der Kanäle in dem zwischen Nachstell- und Hammerzylinder eingesetzten Hahn, wenn dieser die Stellung in Fig. 1 einnimmt.An embodiment of the rock hammer drilling machine from that characterized above Arrangement is shown in Fig. 1 in longitudinal section, for example. Figures 2, 3 and 4 show the mutual position of the channels in the cock inserted between the adjustment and hammer cylinder, if this is the position in Fig. 1 occupies.

Fig. 5 zeigt im Längsschnitt den Hahn mit nach dem Nachstellzylinder und aus diesem nach dem Hammerzylinder geöffneter Druckluftleitung; die Verbindung zwischen dem Nachstellzylinder und der Außenluft einerseits und dem Hämmerzylinder und der Außenluft andererseits ist aufgehoben (Fig. 6,7 und 8).Fig. 5 shows a longitudinal section of the cock with after the adjusting cylinder and from this after the compressed air line open to the hammer cylinder; the connection between the adjusting cylinder and the outside air on the one hand and the hammer cylinder and the outside air on the other hand is canceled (Fig. 6, 7 and 8).

Fig. 9 zeigt die aufgehobene Verbindung zwischen dem Nachstell- und dem Hammerzylinder, zwischen der Druckluftzuleitung und dem Nachstellzylinder sowie zwischen der Druckluftzuleitung und dem Hammerzylinder (Fig. 10,11 und 12).Fig. 9 shows the broken connection between the adjustment and hammer cylinder, between the compressed air supply line and the adjusting cylinder and between the Compressed air supply line and the hammer cylinder (Fig. 10, 11 and 12).

In der Stellung des Hahnes nach Fig. 13 ■ ist die Verbindung zwischen dem Nachstell- und dem Hammerzylinder aufgehoben und die Verbindung zwischen Druckluftzuleitung und Nachstellzylinder einerseits und Hammerzylinder andererseits hergestellt (Fig. 14,15 und 16).In the position of the cock according to FIG. 13 ■ is the connection between the adjuster and hammer cylinder is canceled and the connection between compressed air supply line and adjusting cylinder on the one hand and hammer cylinder on the other hand produced (Figs. 14,15 and 16).

Fig. 17 zeigt das Hahngehäuse im Schnitt, Fig. 18 das Hahnküken selbst in Ansicht, Fig. 19 einen Schnitt nach Linie A-A, Fig. 20 einen Schnitt nach Linie B-B der Fig. 17.17 shows the tap housing in section, FIG. 18 shows the tap itself in view, FIG. 19 shows a section along line AA, FIG. 20 shows a section along line BB in FIG. 17.

Am Hammerzylinder 1 sitzt das Gehäuse 2 des Hahnes, an den sich der Nachstellzylinder 3 mit dem Kolben 4 unmittelbar anschließt. Die Kolbenstange 5 erstreckt sich nach rückwärts durch das freie Zylinderende hindurch, derThe housing 2 of the tap, on which the adjusting cylinder 3 is attached, sits on the hammer cylinder 1 with the piston 4 immediately follows. The piston rod 5 extends rearward through the free end of the cylinder, the

Claims

But piston 4 can also be attached directly to the housing 2, and its lengthened Cylinder can form a system for the machine.

In the conical bore 6 (Fig. 17) of the valve body 2 sits the valve cone 7 (Fig. 18), formed upwards as a cylinder 8 with a square 9 for placing a hand lever is, while the compressed air supply pipe 16 is screwed in below.

The channels 19, 20 (FIG. 10) lead from the seat 6 to the outside or after the hammer cylinder 1 and can through a bridge channel 21 in the cock plug 8 are connected to each other. A channel 22 leads from the seat 6 to the chamber 23 in the Nachstellzylirider 3, and a channel 24 in the tap can be in one tap position with the duct 22 as well as through the plug through upwards with the outside air.

Several channels 26 of different sizes and lying in a common horizontal plane lead from the cock seat 6 to the chamber 23 in the adjusting cylinder; one at the level of these channels 26 lying channel 27 leads from the seat 6 into the hammer chamber 28, and a channel 29 in the tap provides the connection in the one cock plug position through the mediation of the channels 26 between the compressed air supply line and the adjusting cylinder 3, while with another Stopcock position of hammer cylinder 1 through channel 27 with the compressed air supply line in connection occurs. A channel 30 (FIGS. 9 and 11) leading away from the seat 6 goes to the chamber 23 in the adjusting cylinder 3, and a channel 31 in the cock plug represents in its one position the Connection between the compressed air supply line and the chamber 23. Also sets, a Channel 32 (Fig. 11) in the cock in its one position a direct connection of the chamber 23 in the adjusting cylinder 3 with the hammer cylinder ι through the channels 30 and 27 ago.

When operating the rock hammer drill with its parts in position Fig. I, 2, 3 and 4, the compressed air is completed by the adjusting chamber 23 and the hammer cylinder, but the chamber 23 stands through the channels 22 and 24, the hammer chamber 28, however, through the channels 20, 21 and 19 (Fig. 2) in connection with the outside air.

If the machine is to be put into operation, the cock plug 8 is activated by the on it seated handle in the position Fig. 5 to 8 transferred and in this position accordingly secured. In this position of the cock plug, the compressed air supply line 16 is gradually through Connection of the> channel 29 to the channels 26 of different widths gradually with the Adjustment chamber 23 connected and the connection of the adjustment chamber. 23 as well as the Hammer chamber 28 canceled with the outside air, but a connection to the readjustment chamber 23 with the hammer chamber 28 through the channels 30, 32 and 27 made directly. With this connection of the supply line 16 with the chamber 23 and this chamber with the chamber 28 is the compressed air at the passage through the channels 26 more or less throttled; as a result, the air works also initially with less pressure on the hammer, and the drill will with less Pressure brought up to the rock, just as he initially works with lower pressure.

The control cock must then be transferred to the position Fig. 9 to 12, with also excluding the outside air from the adjustment chamber 23 and the hammer chamber 28 the connections of the readjustment chamber with the hammer chamber through the channels 30, 32 and 27 as well as the compressed air supply line with the adjustment chamber through the channels 26 and 29 are canceled, however, the connection of the compressed air supply line 16 with the adjustment chamber 23 is made through the channels 30 and 31 (Fig. 11), so that now the Drill is pressed against the rock with full air pressure.

When this last setting of the plug 8 (FIGS. 13 to 16) is reached, there is a connection the readjustment chamber 23 and the hammer chamber 28 with the outside air through the tap not yet, on the other hand is one Connection of the compressed air supply line with the adjustment chamber 23 and with the hammer chamber 28 directly by connecting the channel 31 to the channel 30 and the channel 29 after the channel 27 (Fig. 15 and 16) made.

Patunt Claim:

Rock hammer drill with a compressed air supply line with the adjuster and the hammer cylinder and each of these cylinders for itself with the outside air, at times connecting regulating member in the form of an inserted between the two cylinders Hahnes, characterized in that in the cock of this cock apart from those which enable the known connections Channels still a channel (32) is arranged through which the lying in the Hahhgehäuse and channels (30 and 27) leading to the adjusting and hammer cylinder can be connected to each other.

1 sheet of drawings.