DE1961341A1 - Feed mechanism for hose routing of rock drilling machines - Google Patents

Description

Dr. A. Wentzel
Graduate engineer W. Dahlke

Patent attorneys December 4, 1969

Refrath near Cologne Wa / D

Cave 137

Gardner-Denver Company Quiney, Illinois, Y.St.A.

"Feed mechanism for hose guidance from Rock drilling machines "

The invention relates to a feed mechanism for Hose routing of rock drilling machines,

With rock drilling machines it is common to have the drilling machines on Carriages, to store the drill in the longitudinal direction of the The carriage can be moved forward in a reversible manner. These mounts are for loading

00982S / USS

provided on universally adjustable outriggers, which on

ι. ■.

sit on a wheeled device that is a wheel "or Tracked vehicle can act self-propelled »The rock drilling machines must also be equipped with a number of flexible medium hoses that lead to the engine block of the drilling machine lead to the pressure medium required to drive the motor and the flushing agent required to clean the hole to lead to the drill. So when drilling machines in the specified Art stored exists as a result of the required Hose lengths run the risk of kinking or twisting or be damaged by walking over rough ground For example, the bottom of a mine tunnel is pulled or a construction site. It is therefore advisable to provide a guiding and tensioning device around the hoses to keep a total of wound so that damage or entanglement is prevented, but at the same time the possibility is given that they lafette the drill on the drilling run along.

Guide and tensioning devices for the medium hoses of rock drilling machines are known. The known devices have found application in the high-performance mounts with chain feed devices, where weight and space are not of decisive importance in the construction of the feed support. However, it is also desirable to have positively driven hose tensioning drums on the lightweight

009825 / ΠΜ ^f "* ³ - '

Provide spindle Yorschubsupporten "for those in the construction a major consideration is the reduction in weight and size.

The invention consists in creating a form-fitting driven filling and tensioning device for the medium hoses a spindle support for rock drilling machines. The invention provides an elongated feed member, which is rotatably mounted on a spindle feed support parallel to the feed spindle for the drill block and that for driving a hose guide and tensioning drum at a fixed speed relative to the feed speed, the drilling machine is set up. .

The invention includes an advancement mechanism for a Hose guide tromme.l, which 'for storage on a light Feed support is suitable for the drilling machine. The entire feed mechanism is within the normal cross-section of the support. The reliability of the Schlauchtroiaiae Iv or direction is due to its mechanical simplicity and the robustness of the Sclilauchtromael advancement mechanism according to the invention increased.

An advantageous feature of the invention is its creation one. Drive that drives a Bolirn machine feed screw and a hose guide feed screw "coupled together, in such a way that the two spindles - with proportional speed -

0098257U85 -; 4 -

BAD ORfGfNAU

speed are driven to "certain relative feed rate. speeds between the hose guide drum and the Surrendering drill.

The invention is explained in more detail below using an exemplary embodiment with reference to the drawings. In the drawings are:

Fig. 1 is a side view of a universally adjustable Drill that sits on a mobile chassis;

Fig. 2 is a section essentially on the line 2-2 of Figure 1;

Fig. 3 shows a detail in view and partially in Section showing the spindle feed support according to FIG. 1, with details of the Feed screw of the hose guide and the drive mechanism are shown and

Fig. 4 shows a detail as a variant of the Vorscimb-

spindle of the hose guide and the drive mechanism.

In Fig. 1 is a mobile rock drilling machine 10 ■ '"

0: 09825/1485 - 5 -

shown. The machine 10 comprises a "rubber tire" vehicle 12 self-propelled on which a universally adjustable Boom 14 is mounted, which is articulated on the vehicle at the joint 16. The distal end of the boom 14 is designed to support a hinge bracket 18 on which an elongated Feed carriage 20 is attached. The feed carriage 20 is used for sliding storage of a Sehlagmotors 22 of the Rock drilling machine, which is mounted in the longitudinal direction on the carriage 20 can be advanced along to blast holes etc. ' to drill, in that rotary impacts are transmitted via the drill steel 24 to a drill collar, which is not shown.

The way in which the boom 14 and the feed carriage 20 are mounted, and the provision of pressurized media Working cylinders 26, 28 and 50 allow holes to be drilled at different angles in different places relative to drilling site 32 »Although to simplify the Representation of only one boom is shown sitting on 'vehicles 12 often several booms, so that a large area can be quickly provided with drill holes by an operator sitting on the control panel 34.

The motor 22 of the drill, which is a known one Pressure medium engine is, requires a number of flexible medium hoses 36, which are connected to the engine block from a not shown Perform pressure medium source. The hoses 36

009825 / U8S

necessarily "extend from control panel 34 and ' must be of sufficient length to enable the motor 22 to move freely along the slider mount 20. The hoses 36 must also be long enough to allow a position of the feed carriage 20 relative to the boom 14, as is achieved when the pressure cylinders 26, 28 and 30 are extended to the greatest extent.

A substantial amount of free sagging for the tubes 36 would be in certain positions of the Bohriaaschineniaotors and the feed carriage, which would lead to kinking, entangling and stiffening, if none Guide and tensioning device would be provided by the hose reel 38 is formed, which is movable on the Feed carriage 30 is mounted. According to the illustration in Fig-. 1 the tubes 36 are neatly in the compartments of the Drum 38 wound up, from which it goes to the drill motor 22 lead. By routing the hoses 36 through the hanger 40 on the boom 14 and by connecting the hoses to it there is no danger of the feed carriage 20 by means of the clamp 42 at the level of the articulation of the feed bracket 18 entanglement or damage.

ι As shown in Fig. 2 and 3, the feed beam 20 is provided in a lightweight construction and has a support having a narrow cross-sectional shape (Fig. 2). This carrier is

009825/1485 - 7 - ■

■ '"·' - ■■". ■ BAD ORfGJNAL

in a known manner from extruded aluminum alloy or made of steel. The drill motor 22 is slidably mounted in a known manner on the mount 20, and it is reversible in the longitudinal direction of the same by an elongated, rotatably mounted feed member driven, which is formed by a spindle 44, which in the middle is mounted in the mount 20 and in thread engagement with the drills 22, is, through a non-rotatable nut 46. The feed rate of the drill is a puncture of the pitch of the thread and the speed of the spindle 44. As shown in Fig. 3, the spindle 44 can be rotated by a pressure medium-operated motor 4ö, which is mounted on the mount 20 via a two-piece gear housing 50 and a bracket 52. The engine 48 receives and there are lines 50 and 56 from mid-print, and it is can also be operated from the control panel 34. The engine 48 drives the feed spindle 44 in a reversible manner via a gearwheel on, through a pinion 58 and a reduction gear 60 is formed with an egg-piece extension 62 of the feed spindle 44 is distributed. The reduction gear 60 and the spindle extension 62 are in bearings 64 or 66 stored. The opposite end of the feed screw • 44 of the drill is also in a known one Stock (not shown) stored.

As shown in ffig.- .2 there is -Schlauohtrammel,

00 982S7148 5 - " ^ö "

BATH ORIGINAL

-S-

30 from a subdivided drum 68 which is freely rotatable on a hub 70. The hub sits on a frame 72. The frame 72 comprises laterally projecting ribs 74 which are slidably seated in guides 76 which are provided in the longitudinal direction of the feed carriage 20. The drum frame 72 extends into a longitudinal recess 78 in the feed carriage 20 and surrounds the feed spindle. 44 the drill. A longitudinal bore 80 through the frame 72 provides the necessary freedom for the feed spindle of the drilling machine. According to the illustration in FIG. 3, the drum frame 72 comprises a nut 82 which is connected to the frame in a rotationally fixed manner by a bolt 84. The nut 82 is in threaded engagement with an elongated member which is formed by a spindle 86 which is rotatably mounted in the recess 78 parallel to the feed spindle 44 of the drilling machine. The spindle 86, which forms a feed mechanism for the hose reel 38, extends essentially over half the length of the feed carriage 20 and is rotatably mounted in a bearing 88 at one end. A shaft extension 90 on which a gearwheel 72 is seated in a rotationally fixed manner is mounted in bearings 94 in the gear housing 50. The feed screw 44 of the drilling machine and the feed screw 86 of the hose reel are rotatably connected to one another by means which are formed by the toothed wheel 92 which meshes with a toothed wheel 96. This gear wheel 96 sits on the spindle extension 62. The gear wheel 96 'is • ■■■ ^: '.: - ■. ■■■ "■■■■■■:, -.9-

009825/1485 ^ '

arranged in a rotationally fixed manner relative to the spindle 44.

With the arrangement shown in Fig. 1 for guiding and tensioning of hoses 36> in which the hoses are reversed around the Drum 38 guided around and fixed relative to the feed carriage are arranged by the clamp 42-, the drum 38 travel at half the feed rate of the drill motor 22 to maintain the desired tension. Accordingly, in the embodiment shown in Fig. 3, the gears 96 and 92 are designed to have a speed ratio of 1: 1. The pitch of the thread of the feed spindle 86 of the drum is half the pitch of the Thread of the feed spindle 44 of the drilling machine. Therefore, even if the spindles 44 and 86 are in operation with the be rotated at the same angular speed, the hose reel 38 advanced on the feed carriage 20 at half the speed of the drill motor 22 and withdrawn. Since the spindles travel in opposite directions, it is necessary, however, that the thread of the Spindles are left and right handed. Thread with the same gear direction could be used for the two feed spindles used when an idler gear is in mesh be brought between the gear 92 and the gear 96.

i-It is not necessary that the gears 92 and 96 so

are designed so that the speed ratio between the

009 8 26 / U 8 5 - io -

connected feed spindles is 1: 1. In the M ¹ Ig. The embodiment shown in FIG. 4 shows a conveyor spindle 100 of a hose reel which has a thread pitch which is equal to the thread pitch of a feed spindle 102 of the drilling machine motor, but in the embodiment shown in FIG. 3 the thread is provided with an opposite pitch. The feed screw 100 of the drum is in threaded engagement with a nut 103 which

_ Is arranged non-rotatably on the drum frame 72, and zv / ar instead the nut 82. The gear reduction, which is accommodated in a modified gear housing 104, comprises a gear 106 on the extension 108 of the spindle 102, which is connected to a gear 110 on the extension 112 of the spindle 100 is engaged. The partial diameter ratio of the Gear 110 to gear 106 is 2: 1, so that the speed of the feed spindle 100 of the drum is half the speed is the feed screw 102 of the drill motor. This is the speed of advance of the sleek drum

W. 38 half the feed speed of the drill motor.

0098257 U85

Claims (1)

Claims ! ♦ Drilling device with an elongated drilling machine carriage, a drilling machine that is on the mount is movably mounted, flexible lines that with connected at one end to the drill motor and which is fixed with another part relative to the mount are, a first elongated part that is rotatably mounted in the mount and in an operative connection with the drill motor to the reversible Feed of the same in the longitudinal direction of the carriage is, and a drive motor which is in operative connection with the first elongated part stands, d a through marked that a line guide (38) on the mount (20) for guiding the flexible lines (36) relative to the drilling machine motor (22) is movably mounted that a second elongated part (86) on the mount (20) in the is rotatably mounted essentially parallel to the first elongated part (44) and in an operative connection with the cable guide (39) for reversible feed the same in the longitudinal direction of the carriage (20), and that a drive mechanism (92, 96) the two elongated parts (44, 86) with one another '- 12 - 009825ΠΑ85 binds, so that the parts by the drive motor (48) for. Advancing the drilling machine motor (22) and the line guide (38) in the longitudinal direction of the mount (20) are driven to rotate against one another at a fixed speed. 2. Drilling device according to claim 1, d a d u r c & characterized in that the drive mechanism comprises a gear (92) which is arranged on the feed part of the line guide (58) and the meshes with a gear (96) which is arranged on the Vorsehubteil the drill motor (22), and that xn depending on the running of the drive motors (48) Feed part of the Bohrmasehinenmotor (22) and the Feed part of the line guide (38) are threatened with a fixed speed with respect to each other. 3, 'drilling device according to claim 2, characterized ge characterizing ζ ei c h τι et that the part of the YorechutH Bohruaschineniaotors (22) comprises a spindle in threaded engagement IAIT the Bohrmäschinenmötor; (22) stands, and since / 3 the feed part of the line guide (38) comprises a spindle which is in threaded engagement with the guide line (38-). 00 9825/14 8 -13 - 4 »Drilling device according to claim 3, since the G Ii marked i c la ti e t that the Drelizalil ratio the meshing gears (92, 96). 1: 1, "is» 5. Drilling device na ο Ii claim. 4 * thereby characterized in that the feed spindle of the line guide (38) has a thread pitch which has the Hälite-der G- ewin de pitch of the feed screw of the Bohrraascliinenmotor (22) is such that depending on the running of the drive motor (4o) the line guide (38) in the longitudinal direction of the mount (20) at half the speed of the drilling machine iiotor (22) is movable, 6. Drilling device according to claim ^, d a d u r c h _o · Eke η η 2 e leans that the Drehsahlverhältnis of the gear at the Yorschubspindel of iiohrmaschinenmotors (22) relative thus zvm kämiaenden iiahnrad to the feed screw of the Leitangsführung (3NC) 2: 1, 7. Drilling device according to Anspimch 6, d a d u r c h g e k e η η s e i c h η e t that the Yorsoliubspindel the line guide (38) has a thread pitch, 1 901341 - 14 - 7 liat, the equilibrium of the thread pitch of the "feed spindle of the Boliri motor (22), such that depending on the running of the drive motor (-! 8) the line guide (38) in the longitudinal direction of the carriage (20) with the half speed of the drilling machine motor (22) is moveable. Blank page "■ i G.