DE8816167U1 - Drill rods - Google Patents

Description

Dr.-Ing. QOTTHOLD KOSCHOLKE

PATENT ATTORNEY ..

zuoEL ven'.n &bgr; European Patent Office
4OC DÜSSELDORF 11 «DBEHKASSED
RHEINALLEE 147 · TEL. (0211) SS4010 '9. 1988

DEUTSCHE BANK AQ DÜSSELDORF GHT 146.28

Bank code 3OO 70010 ■ ACCOUNT NO. 6440103
("OSTQIRO ACCOUNT: COLOGNE NO. 14OO7-BO0

Wirth Haeehlnen- and »ohrgerite-rabrik Qrnh* in D-tleO Irkelent

Q Boargeatinge

The charge is based on the previous one, after which 4 Anaprueha 1.

"al ftohrtaatiatatt, wla alaaadara balaa oarstaaa*. Kally-ttaa§a or alaaadara balaa oarstaaa*. lat m· bakaaat» alna« Oeataagatall & bull;uaaatig as z««l dlaaatrftl sagesftfear1iegasdas Stellas alt la l*la«arleatttaf varlaufaadaa Lalataa tu varaahaa, dia sttr Okartraftta« daa Oraaaaaaata de alla Aatrlaba-

^ «Had aaf «m Oaatlaffatall fc«·. ve· alaaa eaatla#«tall

on alaa· aadaraa dlana·. Ml daa bakaaataa

*a alea is about wrong«Mn old raeataeklgaa QM«racluiltt,

the only thing that matters is that it is a

Drilling gears of the aforementioned type and ball bearings are often exposed to high and unfavourable loads, both stresses coming from the drive side and particularly affecting the rotational transmission, as well as effects arising from the tool and from the drilling process itself, in addition to the rotational movement, there are usually also considerable

Pressure forces must be transferred to the tool via the rods. The bars are particularly important parts, which often have a significant impact on the strength of the rod and its susceptibility to repair or wear and tear .

Avffeie 4er Irfladuae is ··, iehwlerlfkelten and Uafulteelleakeitea, 41e and others la ttlabllek on 41· above

is pr«!»*±·«»»·!» §«!i«b«trltb «ufer·-

tea, virleaai in tw wa4 «la eia- o4«r aehrteiilfoe fciitkf &igr;« Maeitea, 4·· el«· eureh advantageous· Q Hfett— atMMieiMMit* M luNioMir« hlneiolitlleh

••!••&ngr;tt«l>ilityM>it«lMtk«rk«it (Min linaati, «·!«·!- ki· «Mrti iMMfjflliek MiIMM AttfaMMM· tnji.MiMr Aua»il4uttf. W«lt«r· alt all«4 «· ■»■■—ankknaa4a troblaa·» alt 4·&eegr;·&Agr;•iek 41· Irfla4wn b9tm$t. ·&ggr;««»·&bgr; «ick au· 4er jaw*lll0«a

The Irfla4«sjf ei«kt vor, 4a| iiMiiadoet aa «laoa teil «oaifetoa· 4r«l Loiatm rar Drokaoaoat<lbortraa}tta0 vorfoooaoa ala4, 41· olao 4er l«#«roa Koattir 4·· 0rua4-de»

anti-tilting force. The "lower end" of the discharge pipe all rubs against a strong, powerful force distribution system. The pressure on the pressure vessel on the outer surface of the pipe deflects the forces "on the inside" of the pipe towards the outside. This leads to a "lower end" of the pipe, which contributes to the deflection of the entire connected part. Adverse tipping forces, which in conventional designs could easily lead to a dent in a pipe or even to it bursting, are avoided. If the base body is enclosed in three or more areas by strips, alternating bending stresses are absorbed particularly well. Overall, an increased surface area is available for the transmission of force, &lgr;&ogr; that the specific surface area

The power is reduced for the same forces and higher forces can now be transmitted. If the strips also have pressure-absorbing surfaces for transmitting pressure forces, as is particularly the case within the scope of the invention, what has been said applies accordingly. The system is then aligned with the contour of the strip and runs in a co-axial manner.

The arrangement of the strips is intended so that all the strips are distributed over the entire surface and also have the same characteristics as the entire surface.

&bull;therefore, a different distribution arrangement is not excluded. With particular advantage, the formation and disorder of the strips is "met" so that at the relevant points, where 6% of the linear guides are not interrupted or blocked in the formation of pressure recordings, around 90% of the unfavorable conditions of the outer casing are eliminated.

Due to a special method of invention, the strips are made of aluminum, which are adapted to the contour of the body, by means of free forming, in particular by rolling. The parts for the welding points on the strips are also made by free forming. This means that no further processing is required before the strips are attached to the base body, as was previously the case. In addition, strips made by rolling or a similar process can also be considered particularly suitable for the application in question in terms of their properties.

In most cases, a rod section can be designed with three or four slats. However, a larger number of slats is also possible.

closed if it appears appropriate under the circumstances or is appropriate. In particular, it can be the case that in addition to the area with three or four slats, a rod part also has another area with a larger number of slats. This applies, for example, to the upper part of an outer tube in a telescopic rod.

The invention also includes designs of a multi-part rod, in which at least one rod part has a cylindrical base with three or more strips

Q) and at least one other Geetln part, namely

ally an inner rod, an angular, e.g. square, outer contour or cross-sectional shape.

«Further details, features and advantages of the invention can be found in the following explanation of embodiments, in the accompanying drawing and in the speeches. They show:

Pig. 1 a multi-part telescopic drill rod in inserted state in a simplified view,

j~ Pig. 2 a state of ousting according to Pig. 1, in which

^ old Auenahm· the Znnenetange all parts aue-

&bull;enobeo are, partly la fchnitt,

Pig. J a Tellansleht of an Oeetingetelle, PIg. 4 a section along the line XV-IV In Pig. 3,

Pig. 9 a section through the length of the oeat according to Pig. I at 4tr Sttllt V-V,

Pig. 6 a partial view of a rod part of the pressure transfer surface,

Pig. 7 «a section along the line VII-VII in Pig. 6, Pig. · a section through a part of the rod ■&£ six

. · ■ ■ ■■ Strips, .'■-.■ ■'■ - ■■■·■.' . . ·"·.' , .-·-·.. '·.-. , ..■

Pig. 9 a bar in front view, Pig. 10 another bar in forehead view and Pig. 11 a section through a four-part telescope

Whereas the terms "above" and "below" are used in this description, this applies with regard to the drawing. At the same time, this also corresponds to the most important elements of the Oeeting itself.

The Oestinge according to Fig. 1 can be a three-part telescopic Oestinge. The representation of Fig. 1 shows the following elements: an outer Oestinge part 1 essentially designed as a round tube, a driver S, which is connected to a non-tilted power rotary head or the like and can exert both a rotary axis and a pressure force on the Oestinge, a valve and shock absorber unit f arranged in the upper part of the inner Oestinge part 1 and a valve cap 7 as a connection for the S, a shock absorber marked with the number 4 in total at the lower end area of a the innermost

Inner rod 3 forming part of the linkage with connector piece 9 for a tool.

The elements used to transmit torque and pressure forces from the driver 6 to the? frame parts and from one frame part to the other are not visible in Figure 1. They are explained below with reference to Figures 3 to 11.

Fig. 2 shows a part of the telescopic rod in a v) state in which the telescopic rod 3 is still in a

immediately adjacent and coaxial to the next frame part 2 and both Oesting parts 3, 4 are cut out of the inner frame part, namely the outer tube 1>. In Fig. 2 it is also clear that the fork piece 7 with the connection for the part t is attached to the upper end of the internal rod 3.

The rod part 1 shown in Figures 3 and 4 can be the outer tube of the rod according to Figures I and 2. The round body 11 of the same is a seamless cylindrical steel tube which is welded on its outer surface. side three similar but the circumference distributed strips

12. These are also made of steel and are attached to the base body 11 by means of extensions. The strips 12 have a curved cross-section, as can be clearly seen in Fig. 4. Their inner surface, i.e. the surface facing the pipe 11, has the same curvature as the cylindrical surface of the pipe 11, so that the strips rest on the pipe over a relatively large area and thus form a complete unit after welding. The number 13 designates drivers which are located at the lower end of the rod part 1 in its interior (as shown in Fig. 2).

·: &iacgr;

tet) and serve to attack the profile of the next part of the link 2. The number of these drivers is appropriately equal to the strips or the spaces left between them on this next part of the link.

The object shown in Figures 6 and 7 on a slightly larger scale can in particular be the middle rod part 2 of a telescopic drilling rod according to Figures 1 and 2. Here too, the base body 21 is a seamless steel tube, on the outside of which three strips 22 running along the surface lines are attached by welding. The welding points are marked with the number 24 (corresponding welding points can also be found on the outer tube according to Figures 3 and 4, but are not shown there).

Figures 6 and 7 also illustrate a location of the pressure absorption 25 on the strips 22. The latter have a more inclined area 22a here, which creates a step forming the pressure absorption 25 or a recess or pocket 27. From above, the strips 22 can be provided with old recesses 2f.

This serves to facilitate engagement of the driver 23 located on the associated non-external Oesting part or of a correspondingly profiled drive member on the inside. Fig. 7 shows drivers 23, which functionally correspond to drivers 13 in Fig. 4. The pressure-sensitive adhesives used are also present on the other Oesting parts.

How the three Oestinge parts X, 2 and 3 of a telescopic rod with the »rlltitered features are built into each other is illustrated in Fig. 5 as a section at point VV in Fig. 1, where the driver 5 of the

ity is only indicated in its outline and with its inner profile in dash-dotted lines. It is also clear that 4v4 4er 4rtiv4fc4rMf Il ve· Ivjmmtm MVttafvtvil * k«ln »&bull;kr, sever» «Im itvat* vm VvllMtVtflvl let. On 4&Phi;9&mdash; AtfAMVVltV titti 4ffVi UiItM ja MfVVtift, #·■* 4«· wrvtVMv4 4MVftv MtviWMfcva4 tilt.

Ftf. I SVift IiM AMtVBWf IiMI fMtlftMtVllM 14, Ml

4m «til Mr AttfvaMitv tiMt rvarfviraiMV frtta4k4rv*r* 11 vvvav rvfvlaifif Imt m· ttat«M v«rt«ilt· Uiiun 1· MMVVMlIt ViM. OiMV bVlVtM 1· hiVJMV «UH «»1* VVi MA

mm· vrllvtvrtM 0Mtiv«vtiilM Mvr 4m #rdft·· Tell «&mgr; Ltefv MV VMtivjfvtvilvv' i4 vrvtrv«kM **4 ait

TMVVVV «4.VfI, VVT tlltttVf VM &Rgr;&Tgr;1&Igr;*)&Igr;·«&Igr;&Igr;~

wrvvvM, Miv, viv 41m la lmiiMliim alt fit. · va4 7 vrlivtvrt «mrv·. Iv kvav vvvr Mil verteiivvtt MiV, VlM MlvlM Aavval VM LvIVtM mr In vivva ivrvlvi 4vv OMtivfvtvilM wrvvvvMa. lMvvvva4vrv Mam v»M sar vvv vavrw mvmm e*av· AvpvnaccMVw in v*tr*«lit. v· t.·. 4«r AiftivavtaaM 1 la v*r«leh 4vr

DIv n«ar 11 Mi«t «iMa 4vr flfiir t Mtvi>rv«A*a4vn feaaitt Mi ViMa mm vivr TvIIm 41, Sl, 41 ua4 71 Mvtrtiv4vv Tvlvviiv» 'tofcrvvvtlavv, va 4vava jvwvilv four 2*1 vtM A%. ta, 4a aa4 72 4vr vrllvtvrtM Type ait Dr***- über«rv&9tflleh*n 45, SS, SS and 75 are available. The respective strips are attached to the luyeAr base body by welding T^rbund^n. The welded parts are not shown in Fig. 11 because this is a north-facing position of the industry end.

A special feature of the invention are the lasts made of wheat, in particular

the parts intended for welding are also formed without any chips. In figures 9 and 10 &bull;lad &igr;«·! &Igr;·1·»1·1· for all «+«long strips 10 and 4 ao each in a similar shape. 01· strips baten &bull;la for«krflaa)t·· rprofil. Otto«! Itt 41· KrQaauna of the InMa contour 10· btw. 20· Jewell· al«leh 4ea Ronturv«rl«uf 4·· 0catAnM-0run4ker»er·, alt 4«a 41· Leiste ¥«rbua4«n «&bull;r4#a »oll, Ml «lam iFlla4rle«a«a 0r«a41i*ra«r ·1·&bgr; kr«itf«ralfl. Dl* ÄttMakoatur 10» »·«. 20b v«rlluct B«««kai#lf &mgr;^·11·1 lur Xaa«>ak*atttr, ·!·· aueh tür ' * LA*«··«*·· 4·· O«*tAat«t«il·· k«ai«atrl«eh. FOr 41·

Att#««k««tttr kui «JMr also «la aa4«r«r course f««Ahlt W4ir4«i. ·· lit twa «la· f«r«4« o4«r «eklf· contour not With 4·· taai«a 10· «a4 20c «Ia4 41·

afcfariffa tartlaa ·* 4«n L«l«t*n Mi«l«aa«t _# an 4*non Ml 4«r V*r»la4ua« alt 4·· jmlll«oa 0r«a4kdra«r 41· f«aw«10ttaf«ti «rfolfra.

0<Ma«t&mdash;4 4«r tr<luat ·1&eegr;4 owoal such· ·&Mgr;&eegr;1&ogr;· f«forat«a htm. fofaltoa L«l*t«n far ioart«atAa#at«ll· al· also 41· old 4*a Lalataa vore«lMa«a O«»tia««t«ll· &bull;1· also «la aoartelll«·· (Metiat· old «la«a or a«hr·- Q rm, old 4«r«rtl««n L«let«a

All of the above-mentioned Madame Mechrelbuags are subject to change. In this connection, the Court may examine the known state of the Toelmlt TaIHt, for I alone or in combination can be considered to fall under the invention.

Claims (1)

&igr;, at least" one rod part with a cylindrical body which has, on an outer side having an iron-forced surface, longitudinally extending, radially projecting strips fastened to the outer body by means of welds "for transmitting a rotary actuator, in particular as a flywheel for absorbing a compressive force, namely" telescope rods, in which one of several rods is relative to another, for example to a driver or the like. is axially displaceable," characterized in that at least three strips (10, 30; 12, 22, 32, 42, 92, 62, 72)) for rotary transmission are provided on at least one end part (U, 2 , 3, 14), which have a curved cross-sectional shape adapted to the outer contour of the outer body (11, 21, 31, 19). 2. Drilling rod according to claim 1, characterized in that the strips (12, 22, 32, 42, 92, 72) are arranged so as to be regularly distributed over the circumference. 3. Drill rod according to claim 1 or 2, characterized in that the strips (12, 22, 32, 42, 52, 62, 72) take up at least part of their length in the circumferential direction approximately half of the outer circumference of the base body (11, 15, 21, 31). 4. Drill rod according to one of claims 1 to 3, characterized in that the strips (10, 20, 12, 22, 32, 42, 52, 62, 72) are produced by chipless machining in their fora which engages the outer contour of the base body. O presented TWiIe are. 5. Drill rod according to one of claims 1 to 4, characterized in that the parts (10c, 20c) for the curving on the strips (10, 20) are produced by chipless molding. Drilling rod according to one of claims 1 to 5, characterized in that in the case of a telescopic rod length having three rod parts (1, 2, 3), each of the rod parts is provided with three strips (12, 22, 32) on the outside. 7. Drill rod according to one of claims 1 to 5, characterized in that in the case of a telescopic rod length having three rod parts (1, 2, 3) , each of the rod parts is provided on the outside with four rods (10, 20). ·. Drill rod according to one of claims 1 to 5, characterized in that in the case of a telescopic rod length comprising four rod parts (41, 51 , 71), each of the Geating parts are provided with three strips (XO, 20) on the outside. 9. Drilling rod according to one of claims 1 to 5, characterized in that in a four-core part (41, 41, 71) each of the rods has four rods (43, 93, 4a, 73) each. Xi. *·6&tgr;&ngr;··1«&ngr;· M«i «iäen «#r «niprvvn« 1 üii v, 4«! w«Aifet«n· «in O««tAf»f«teil au#«r alt «f«i *4«r ¥l*r UittMi (10, 30) «la« %4fi9h alt tim frohere« Aaiihl «m Ulittn (1·) tie