DE1484531A1 - Earth auger - Google Patents

Description

Dr. pbil. O. B. HA «E Bf Patent attorney

8000 MUNICH-SOLLN

Franz Hab Street 21

Telephone 796213 P.O. Box 48

OB 1150

Munich, February 4, 1964

Ohio Brass Company

Mansfield, Ohio

United States of America

Earth auger
Priority: 6 "February 1963 USA Serial No ₀ 256 623

This invention relates generally to auger rigs of the type which are held by a derrick or crane or are suspended from this in order to carry out Erdbohr.arbeiten, and in particular such a device in which the earth auger can be swiveled up to the side in the rest position next to the To reach the crane boom when the device is not in use.

Such a device is generally used in connection with a commercial vehicle and is for handling and installation various objects, such as telephone or telegraph poles suitable, and can be effectively used for performing all the necessary operations that are required when inserting accurately of line poles along a route or the like.

In U.S. Patent 3,073,455, January 15, 1963, a mobile derrick crane of the above-mentioned type mounted on a commercial vehicle is disclosed The disclosed in this patent specification

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barte derrick has a split, extendable boom and contains a device on the boom for attaching an associated working mechanism, such as an earth boring tool, to the boom, this device being made up of a holding device attached to the extendable section of the boom and protruding laterally therefrom. or ring member, on the laterally protruding part of which the auger tool is suspended »The ring member can be moved in the longitudinal direction of the boom in order to position the auger auger along the ^auger

The present invention provides a novel arrangement for one Earth drilling derrick crane, in which the holding member for the earth auger is opposite that section of the boom by which it is supported is rotatable, and that in a substantially transverse direction to this boom section Direction can be rotated or moved so that the auger bit during earth drilling operations below the boom and cannot be disposed to the side of this, and in which the retaining member and associated auger are substantially integrated into one laterally of the boom position can be moved or rotated, if desired, the auger bit to put in rest position.

Accordingly, it is an object of the invention to provide a novel arrangement for an earth drilling derrick.

Another object of the invention is to provide a novel one Arrangement of a derrick crane with a swiveling boom which carries a holding member for an associated working mechanism, like ZeBe an earth boring tool that is opposite the boom of the

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Derrick crane is movable or rotatable, so that the working mechanism for carrying out work in alignment with the boom of the derrick crane and for storage in the rest position can be brought laterally next to the boom of the derrick crane.

A more specific object of the invention is to provide a drivable one Derrick crane, which has a split, extendable boom that can be pivoted in the vertical direction, and in which at the extendable boom section is arranged a holding member on which a working mechanism, such as an auger for ^ rdbohrungen can be attached, and that opposite the boom archable so that the! auger can be moved down can to be located during the work or drilling operation below the boom, and that can be rotated so that the auger mechanism for convenient attachment in the rest position can be brought into a lateral position relative to the boom, and in which a novel device for the optional attachment of the support member for the working mechanism either on the extendable boom section or on the relatively stationary portion of the boom is provided, whereby the position of the working mechanism in the longitudinal direction along the Boom can be adjusted.

Other objects and advantages of the invention will be apparent from the following Description in conjunction with the accompanying drawings, in which

Fig. 1 is a partial side elevational view of the .uerrick crane according to the invention, which is here mounted on a utility vehicle, with a drill bit for Srdbohrun- 9 0 9 8 2 5/0 0 9 7 -4-

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gen near the outer end of an extendable Derrick crane boom is shown suspended on a support member for the work mechanism and the Auger is pushed into the earth by the derrick crane,

Fig. 2 is a substantially schematic plan view of the

in Fig. 1 illustrated derrick and the associated Earth auger tool that is mounted at rest on the vehicle after it is in a substantially lateral position opposite the boom of the derrick "has been swiveled upwards,

3 is an enlarged partial side elevational view of the outer end of the inner portion of the derrick extendable boom is and in particular the brackets for the attachment of the support member for the working mechanism on the inner boom section, by means of the extension of the outer boom section with respect to the inner boom section and the working mechanism attached to it and at the same time the rotary movement of the working mechanism supporting

Holding member in a transverse direction to the boom and allows these brackets will,

Fig. 4 is a top plan view of the view shown in Fig. 3;

Fig. 5 is a front view of the mounts shown in Figs is,

! • ■ ig. 6 is a plan view of a bracket attached to the

outer boom section can be attached, un

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to attach the support member for the working mechanism to this outer boom section, so that the Moving the working mechanism with the outer boom section and at the same time rotating the support member for the working mechanism with respect to this bracket can,

_Β Figure 7 is an elevational view of the fixture shown in Pig x 6, wherein the arm on which this holder is attached, is shown in cross-section,

Fig. 8 is a side elevational view of the holder of the Pig 6 from the right side thereof;

Fig. 9 is an elevational view of the support member for the working mechanism opposed to the support section of the boom and is rotatable with respect to the brackets shown in Figures 3 to 5 and 6 to 8,

FIG. 10 is a front view of the support member shown in FIG is essentially from the right side,

Figure 11 is a front view of a carriage member attached to the the working mechanism supporting member of Figs. 9 and 10 can be attached and hold extendable, telescopically nested pressure medium lines that of supplying the pressure medium-operated motor of the working mechanism or the auger is used for drilling in the ground with a pressurized medium, and

FIG. 12 is an elevational view of the cart shown in FIG is; In Figs. 7 and 8, this carriage is shown in its position opposite the bracket that the

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Support member of the working mechanism on the outer boom section attached.

A utility vehicle 10 standing on wheels is shown in the drawings shown, which has a loading area on which a movable derrick 12 is mounted. The boom of the derrick crane can be mounted on a stand 14 which is rotatable about a substantially vertical axis to allow the boom in an im essential horizontal plane to pivot. Known drive devices including a controller thereof can be provided to be able to swivel the boom over any desired area »

The boom can be placed near its inner end, as at 16, be pivotably arranged in order to perform pivoting movements in a plane which is essentially perpendicular to the vehicle to be able to. This pivoting movement of the boom in an essentially vertical plane can from a position below a horizontal plane extending through the pivot axis 16 into a Take place that is significantly above this horizontal plane, and vice versa. Fluid operated, up and down Drive devices 18 which are attached to the upright frame 19 and in drive connection with the boom of the derrick crane can be provided for this pivoting movement of the boom in a substantially vertical plane.

The illustrated boom of the derrick comprises an inner or lower, substantially hollow boom section 22 which, as mentioned above, is pivotally mounted at 16 on the upright frame, as well as an outer, substantially hollow, extendable Section 26, which is telescopic in the lower or »inner

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Section 22 of the boom can be added. The boom sections are preferably of rectilinear cross-sectional design A reciprocating pressure medium-operated drive unit can be arranged inside the boom sections, in order to carry out the pull-out and pull-in of the pull-out part in a known manner. The outer end of the boom can be connected to a known head drive pulley assembly 28, which for the handling of objects in a known manner with a flexible Wire rope 28a cooperates. Reference is made to the aforementioned US Pat. No. 3,073,455, in which a more detailed Description of the design of a derrick crane suitable for the arrangement according to the invention is included.

The auger mechanism 35 in the embodiment shown can optionally either with the extendable portion 26 of the boom or connected to its relatively stationary section 22. The arrangement for this can be a support member 36 for the tool which is attached to the extendable section 26 of the boom and which has a ring-like part 38 (Figs. 9 and 10) and an arm portion 38a extending substantially radially outwardly from the ring portion 38. The arm 38a can be on his outer end have a bifurcated portion 38b which is pierced at 38c in order to place the conventional handle 40 between them (Pigβ 1 and 2) of the gear housing 42 of the earth boring tool 39 articulated.

As is most evident from the Pig. 9 and 10 is the Annular portion 38 of member 36 preferably having an inner annular groove 43 which serves a purpose described below, and further provided with axially spaced outer lugs or shoulders 44, 46 on opposite surfaces of the ring circumference

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lie. The approaches 44 have a much smaller circumferential length than the lugs 46 and are located near the rear surface 50 of the ring member 38, while the lugs 46 in Located near the front surface 52 of the ring member 38, in the shown Embodiment, each extension 46 extends over approximately 110 ° of the circumference of the respective ring half, while the approaches 44 each over about 30 ° of the total of 180 ° of the respective ring half extend.

At the outer end of the inner section 22 of the derrick boom, a support member 55 is attached (Mg. 3 »4 and 5)» which has locking lugs 55a, 55b on its upper and lower edges, which protrude towards the free end of the boom. The holding member 55 further comprises a circular segment bearing part 56 on which the aforementioned support member 36 of the tool can be rotatably arranged. In other words, the inner diameter of the opening. 57 in the tool support member is only slightly greater than the outer diameter of the segment storage portion 56 _e The support member 55 has a substantially linearly shaped opening 60 which passes through said member and is adapted to the outer boom-r sections take 26 so that the The boom is displaceable or movable in the longitudinal direction relative to the support member 55, the boom section 26 being supported in its longitudinal movement by the rollers 62, which are, for example, articulated at 64 on the inner boom section 22 and can come into rolling contact with the outer boom section 26.

From FIGS. 2 and 9 it can be seen that upon rotation of the tool support member 36 by about 90 ° around the axis of the outer boom section or up to the rearwardly arranged lugs 44 with

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the lugs "55a, 55b" of the holding member 55 come into engagement or »cooperate with this in an overarching, locking relationship, the support member 36 and accordingly also the The working mechanism or the earth boring tool 35 is fastened and held in a locking manner on the inner section 22 of the boom » In such a position, the arm 38a of the tool support member extends substantially to the side of the boom (Pig * 2), and the auger bit can readily be pivoted about pivot 39 towards the boom and from one side of the boom protruding known holder 66 gripped or «releasably attached. In this way the tool can in essence lateral position next to the boom and attached in the rest position and can be in this position in are kept substantially within the vertical boundary surfaces of the vehicle (Fig. 2), so that no significant part of the earth boring tool protrudes outwards from the vehicle. It can therefore be seen that the support member 55 is optional the tool support ring 36 can lockably fasten to the inner boom section 22, and that in such a locking state the outer boom section 26 opposite the inner boom section and the tool support member 36 coupled to it, which is in locking connection with the holder 55, can be moved in the longitudinal direction.

In the vicinity of the outer end of the outer boom section 26 and preferably at the one arranged at this outer boom end Head drive pulley assembly 28, a further bracket 68 (Figs. 6, 7 and 8) is provided, which is also essentially a has rectilinear opening 70 which receives the outer portion 26 of the boom, and which is also circular Storage unit 72 has on which the tool support member 36 rotates

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bar can be arranged. The holder 68 also has locking lugs 74, which are arranged at their opposite lateral limits and are suitable for locking together with the aforementioned edge parts or shoulders 46 on the tool support ring 36 when the tool support ring has been rotated that far is that the lugs 46 come into interlocking engagement with the lugs 74 on the bracket 68. which is at least as large as that of the ring part 38. The holder 68 also preferably has a slot 76 which runs completely through it and which is used to receive a carriage 78 (Mg. 11 and 12) which has wheels or rollers 78a which are in rolling abutment with the upper surface of the outer boom section 26. This carriage may have a pin 80 which protrudes upward from carriage surface 82 and can be received in aforementioned inner annular groove 43 in support ring portion 36 for the tool to hold carriage 78 and ring portion 36 in one another while rotating to allow the ring part opposite the carriage. As best seen from Fig. 8, the surface 82 forms the trolley a port setting of the outer bearing surface of the bearing part 72 of the support 68 "The front end of the carriage comprises a retaining member 84 which is formed with openings 84a in which telescoping pressure medium lines 86 (Fig. 1) are received and held on the boom, which are used to supply pressurized actuating medium to the drive unit 88 (Fig. 1) of the auger. The drive unit 88 can be mounted in a known manner on the gear housing 42 and by means of

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a flexible hose 88a to a pressure medium source in a known manner be connected.

As the carriage 78 moves to the tool support ring 36, and since the ring part carries the auger, it is seen that the retractable pressure medium line 86 is pulled always together with the ring member 36 and the associated Erdbohrmechanismus moved or _e and pushed into one another. In this connection, reference is made to US Pat. No. 3,073,396 of January 15, 1963, which contains a detailed disclosure of a suitable pressure medium line which can be used for the arrangement according to the invention.

When the ring part 36 by means of its lugs 46 on the bracket 68 is attached to the outer boom section 26, the ring part 36 sits on the bearing part 72 of the bracket 68 or is supported by this, and the carriage 70 is within the slot 76 in the support member 68, and therefore there is between the carriage and the support member no mutual interference while the pressure medium lines pulled out and pushed into one another when the outer boom section is moved outwards and inwards with respect to the inner section of the boom, to move the earth auger along with the outer boom section.

When the ring 36 has been rotated so far that the lugs 44 cooperate on the ring with the lugs 55a, 55b on the bracket 55 attached to the inner boom section 22, the ring 36 and the associated carriage 78 with the inner Boom section held, and the outer boom section 26 can be moved in the longitudinal direction with respect to the inner boom section and the working mechanism 35 coupled to it.

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When the auger 35 is released from its locking engagement with the bracket 66 on the inner boom section, thereby allowing the ring member 36 to rotate about the axis of the boom, the auger and associated arm 38a of the ring member 36 are substantially just below the Boom axis, whereby the effective drilling pressure, which is caused by the pivoting movement of the boom about the pivot axis 16 (Fig. 1), is considerably higher than that which would be exerted by a laterally arranged earth drilling mechanism the earth boring tool coupled to it can be drawn into the inner boom section 22, and then the ring part 36 can be rotated, e.g. get to the inner boom section and the auger up in egg ne essentially parallel position pivoted with respect to the boom and can be fastened to this in the rest position by means of the bracket 66.

The terms and expressions used here are intended to be descriptive and has not been used as limiting terms, and it is not intended by use of these Designations and expressions exclude those features that are equivalent to the features shown and described or parts thereof and it will be recognized that various changes can be made within the scope of the invention as claimed.

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Claims (7)

1. Mobile derrick crane with a boom pivotably arranged on a stand which is carried by a vehicle, characterized in that the boom carries a support member for a working mechanism, which relative to the boom can be moved so that the working mechanism either below the boom or can be arranged laterally next to the boom. 2. Derrick crane according to claim 1, characterized in that that the support member for the v / ahlweise arrangement of the working mechanism on the boom is rotatably arranged is. 3. Derrick crane according to claim 1, characterized in that that the boom is extendable and comprises several mutually longitudinally movable sections, and that on the support member and at least one of the boom sections means for selectively coupling the support member to the latter a boom section are provided. 4. Derrick crane according to claim 3 »characterized by Bayerische Vereinabank Munich 820 993 -H- 909825/0097 U8A531 draws that on the boom extendable pressure medium lines for the supply and discharge of pressurized medium to and from the working mechanism are attached, and that a carriage is arranged at least on one of the boom sections, which is a holder for the pressure medium lines forms and at the same time enables the relative longitudinal movement between the boom section and the lines. 5 · 'Derrick crane according to claim!, Characterized in that that the member carrying the working mechanism has a ring which surrounds the boom and with a is formed substantially radially outwardly extending arm on which means are provided for the articulated suspension of the working mechanism, and that means for the coupling of the ring are provided on the boom, through which a rotary movement of the working mechanism relative to the boom is made possible by which the working mechanism is optional below the boom for drilling work and next to the boom for the rest division of the working mechanism after completion Drilling work can be arranged » 6. Derrick according to claim 5, characterized in that means on the inner boom section are provided for the releasable coupling with appropriate means on the ring part, through which the support member and the associated Working mechanism releasably on the inner boom section be coupled when the ring is rotated by a certain amount in relation to the boom section « 7. Derrick according to claim 5, characterized in that the ring is spaced apart edge parts 909825/0097 ~ ~ ^PY U84531 and that the coupling means consist of lugs which are suitable to come into locking engagement with the corresponding edge parts with a certain rotation of the support member. 09825/0097 Blank page