DE2352240A1 - Pull through element for pipes - consists of two ring gauges to measure alignment direction and twist - Google Patents

Abstract

The ring gauges are mounted at a distance from each other on a cylindrical sleeve, and are radially slotted. A cone is provided at each end of the sleeve for the gaude dia. adjustment. A collimator fills the space inside the sleeve. After each movement step optical marks on the collimator front and rear ends are made coincide by an optical point outside the tube. The ring gauges are connected with each other and with a traction cable, so that the cable traction reduces their dia. and makes possible their passage through the tube. When the cable is slack, the gauge rings press on the tube inner wall. Each gauge ring forms a unit together with its expanding sleeve and a closed annular strip. The two strips are connected by two pairs of straps hinged on a semiconductor bow to which the cable is attached.

Description

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File R 592 Düsseldorf "the 16" 1Q _O 1973

Burehzugkörper for measuring the Eoiirimmersa

The invention relates to a Burehsugkorper sum measuring the refugee, direction and / or the swirl of pipes ₃ • consisting of two spaced apart on a cylinder liner arranged radially slotted caliber rings ₉ which at both ends of the cylinder liner a cone 'for taxation, des Caliber diameter and a "collimator filling the cavity of the cylinder liner, whose aa front and rear end located optical measuring marka are brought to coincide with an optical fixed point located outside the tube after each step-by-step feed"

Burehzugkörper this type are well-known They are used everywhere _ ₉ such as z _o B ₀ In der Waff enteehiaikj where there is an extraordinary accuracy of the Rohrinaerm in relation to the Cä-radheit and direction of the hollow axis ankoeeto Babei be the © well-known passage body Tor dem Insertion into the ear is adjusted to the inner dimension of the ear ₉ o _o h _o the two expandable 'caliber rings are shifted on their cone and then fixed = " ₉ until they can be pulled through the ear with little play * during each ¥ © rsetebp®use x-zird eime measurement vorgenoja Using an outside Losares miiitergebracSiteini benchmark! ies. _s which usually ei hl sit one provided escape telescope © eim

The first measurement ₉ DI® with Deia, Ämffamg of Eohres Ifaffenroiir with the aasefeließeiaö on ä®n used Lswlisiagsraram

09818/0 4 7

Dnrciizugkörper is made ", ordered essentially in that both crosshairs in the collimator are brought to coincide with the crosshairs of the Flucfetfernrotors. Now, the Burebsugkörper is preferred by means of a measuring rod to the lying between the two rings caliber distance. The crosshair of the collimator facing the alignment telescope is still exactly in the alignment line of the alignment telescope that has already been determined, while the second crosshair of the collimator may deviate from the alignment, the size of which can be read off as a measured value on the alignment telescope equipped with scales. Now the dura building body is reversed again and then measured again, so that at the end of this operation precise measurement data are available which are of decisive importance for targeted reworking.

Now it may happen ,, that the ssm measured tube i'n due to manufacturing tolerances or any tosgegossenen tube due to scratches or other wear and tear, but also by runs of dust baked mucus, and the like. Differences having the inside diameter through which the Durciizugskorper on Feed is prevented. So he has to come from üew. Bohr removed and the measurement aborted. The latter can only be resumed as soon as the unevenness has been eliminated to such an extent that the measuring device can pass through the inside of the pipe

Would Eaüi but set the caliber rings initially to the smallest liülite width, so that the meter Bait security are pulled by dag Solir lcaan ₉ thus would reach the end of an egg-iWaH / lfreies pipe measurement. Bas simply results in üc ^ QMBj feß in that. Eolarbereielien nit your larger deliverea width cLu ~ - Bni ° efe22ü:, &:.:. ÖE ^a pe: r sioii Hift Eäelir im Boäir- seatrierei'i 'can nwi s & Zii ¹ - IsäEsgeac'iSs aagsrsiifetig zur EcfacrsGeieE

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Eliminating these drawbacks is the eternity of the invention, according to which "the two caliber rings are connected to each other as well as aiacli together with a pull rope _{9 in} such a way ₉ that the diameter of the caliber rings is reduced by the tensioned pull rope to a" reduced feed rate in the tube " are ₉ while the caliber rings are pressed against the pipe wall with the tension rope.,

According to another feature of the invention it is provided that of each caliber ring _s forms a unit in a known manner with an expanding sleeve and a self-contained Hingbund, the boundaries have two pairs of tabs offset by 180 ₉ the Emit one between the Eihgbunden on the Cylinder liner pivotably mounted semicircular bracket are articulated, which in turn is pivotable by means of the pull rope »,

The starting position of the caliber rings in which they are their largest Reach diameter is automatically produced in that the coils are held together by at least two return springs are.

The main advantages of the invention are its adaptability the caliberririge to different cross-sections of the pipe, whereby they both have the smallest inner diameter happen as well as press firmly against the inner wall with the largest diameter and thereby the Dwrchzugkörper in Center the pipe.

The following is an embodiment of the invention to Haad. öer drawing described in more detail ₉ namely show?

FIG. 1 shows the use of a Durclisugkörpers with the various measuring points in a gun _{barrel 9}

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Pig. 2 shows a section of a draft body the line 2 - 2 shown in FIG. 3 on an enlarged scale and

Fig. 3 shows a passage body in view. ■.

You cylinder liner 1 is provided with a cone la at both ends. Furthermore, a threaded bushing 2 is drawn on each of the two threaded sections, which have a collar 2a at their inwardly facing end. Each of the two rings caliber 3 is radially slit, wherein the slits 3a and ha, extend in the depth far beyond the Spreizlrälse k, which in turn merges into a closed check ring collar. 5 The latter rests loosely on the threaded sleeve 2. The caliber ring 3, which preferably consists of one piece, with expanding sleeve k and annular collar 5 is in each case secured against rotation by a pin 6 which engages from the outside through one of the seat braid 4a in a longitudinal groove Ib of the cylinder liner i.

The surface of the caliber ring lying against the cone la and against the inner wall of the gun barrel R is convex and preferably hard chrome plated.

Both ringwiide 5 carry at two points offset by 180 ° Bolt 7 »in each sieve a bow-like return spring 8 inserted and secured by the bolt head. Due to the return springs 8, the two caliber rings 3 are always open held the highest point of the cones la, whereby the caliber in this Α-position shown in Fig. 3 is at its maximum Diameter reached.

Exactly in the middle between the two coils 5 is on the cylinder liner 1 a semicircular bracket 9 with the fulcrum 9a pivotably mounted.

509818/0478

Above and below the pivot point 9 & , two straps 10 engage on both sides of the bracket 9, which in turn are articulated to the bungee bands 5 facing them. On the bracket 9 an eyelet 11 is mounted on the _s is attached a rope or a corresponding rod!. The pull rope leads through a hole 3 ^ of a Kalifeerring. 3 do outside »

The entire cavity of the cylinder liner 1 takes a collimator 13, a _s DER at both ends with buckets reticle is populated "The collimator 13 Bait operates a arranged outside of the tube R Pluchtfernrohr F together ^ which likewise consists of a" reticle optics in the in FIG. 1, the initial position a of the main body, shown in solid lines, is brought into congruence with the two crosshairs of the collimator 13. This initial position a adjoins the cargo space. The return spring. 8 press the

the pipe mouth to the inserted dipstick viird the length determined ρ where the front edge of the measuring stick Breathable body for HHbbegrenawng serves "

Mun is pulled on the pull rope 10, which is also a ^ s of the SohriEünduiag lieraiasliämgenöeis, whereby the ICaliberringe 3 swings against the force of the Eückhol springs 8 by means of the irer © si Bfflgels unfl. the L.asctien be printed 10 to the outside and on the cone 1® down "In this way, the Diarcfezugkörper disengages from the Eoferinnenwand and Ms can stop sub & ®S dipstick contact pre-weighed in oil © position fe _o Ba Salerfeei the vordeir © sabot 3 is in the same position as the rear caliber ring 3 of the ÄMSgamgsstellimg a TkefimdLetj minü in the case of the optics öes Flrachtfernrolarg F uaiafi ül® ihsi optics of the collimator fleckungsglelslip go cu © ß ledllgllcls the rear optiis © rsl ni wi 3 v © 3raessl © rsl in collizer 13 © ia

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Mua is the preferred Burehzugkörper again c Al® in position and so on, until the Rohrinimdung achieved with the alignment or straightness of the Eohi'es ₅ can be such as to sieli known ;, also the direction or deviation of the direction to the Roiires . In particular, measure the exit error angle and the twist. "In the latter case would have to be mounted on the side of passage body .a cam which engages in a Zwg a rifled and fields gun barrel" With each advance, the Durclizngkörper rotates in a very specific. Angle about its Aehse _s which should correspond to the BrallwiEnkei . Even within a single Vorsclsabxieges the degree of adaptability occurring differences in the brightened length of the tube of the Dnrelizugkörper can adapt. v / ill be determined by the Aussehlag of the bracket 9 from position a to position B ₅ in which the caliber ring 3 on the lowest edge of the cone la sits and has thus reached the smallest possible diameter.

All information and features disclosed in the documents, in particular-the disclosed spatial training and construction Design, are - insofar as they are new to the state of the art individually or in combination as claimed essential to the invention, ■ · ·

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Claims (1)

ES E-S CS B Ii L \ £ Os TM El.tv. File E 592 Düsseldorf, 1δ.10 _ο 1973 at ent-befiich-e 1. jBurchzugkörper for measuring the plunging, direction and / or - ' the twist of pipes, consisting of two spaced radially slotted caliber rings on a cylinder liner to which a cone for adjusting the caliber diameter is assigned at both ends of the cylinder liner and one of the cavity of the Diarchzugkörpers filling the collimator, which is at the front and rear. _S are end befindliehe optical measurement marks following each incremental advance of the Burchzugkörpers with an off-Hohres optical benchmark made to coincide characterized in that both caliber rings (3) are both connected to each other as Aiach together with a traction cable (12), such that the caliber rings (3) through the tensioned pull rope (12) on a tion of their diameter is brought ₉ while the caliber rings (3) are pressed against the inner wall of the pipe (left) with the pull rope (12) untensioned » ο Bwrclizugkörper naca claim I ₃ characterized gekenns ei e ne h t that of each ICaMberriag (3K AE® ^r ISS sm Bi <Bh öekanater tJeise old one SpreiaMls © (%) and a generally closed sloSa Eiagtanö (5) @ © iia 0S818 / 047 the coils (5) two pairs of tabs offset by 180 ° (10) have, with one between the ring collars (5) the cylinder liner (i) pivotally mounted semicircular bracket (9) are articulated, which in turn means of the pull rope (12) is pivotable. 3. passage body according to claim i and 2, characterized characterized in that the starting position of the caliber rings (3) can be produced in that the ring collars (5) held together by at least two return springs (8) are. 509818 / CU78