TEST MANIPULATOR FOR THE EXTERNAL EXAMINATION OF PIPINGS, PREFERABLY TO ULTRASONIC EXAMINE WITH REACTOR PRESSURE VESSELS

ror everything therein to see that the axial guide way of the support frame can re-paint over easily the entire Durehführungslänge of the piping and that the carriage of a from the outside accessible assembly situation with the ring framework and the probe holder axially by the annular gap in test position will thus proceed can, by which from then the automatisGhe examination the welding seam zone it is made. Since the support frame can be stably implemented and be put on with appropriate precision on the tubing outer circumference, then the test manipulator is adaptable to arbitrary axial lengths of straight lines pipings within not or only with difficulty accessible ranges. The drive for the probe holder does not need to run no more over; it is shifted only axially with dern carriages. The drive for the axial shift of the carriage can be fastened outside on a front flange of the support frame. Further characteristics and advantages of the invention as well as its impact become in the following on the basis the designs representing a remark example besehrieben, to which in schematic, simplified representation to point: Fig.1 a test manipulator after the invention in test position and positioned on the outer circumference of the Speisewasserleitung of a reactor pressure vessel in the diagram partially in the cut and Fig.2 the article after Fig.1 in side view partially on average in accordance with the line II-II from Fig.1. In accordance with Fig.1 is the connection pipe --1-- the Speisewasserleitung of a reactor pressure vessel --2-- under education of a relatively close annular space --3-- by one the thermal isolation serving Isolierschieht --4-- and an appropriate opening in the biological sign --5-- outward passed through. The piping --1-- is at the connecting pieces --2a-- the reactor pressure vessel 1Q --2-- by means of the pipe connection seam --6-- welded. This connection seam --6-- and the adjacent heat influence zones, those the routining scope --6a-- form, must be examined with the zero-admission as well as during the so-called repeat inspection, thus periodically, on material defects. Hiezu preferably serves a test system --7--, consisting of Ultrasehall probes transmitters and receivers), at one, not represented more near, as a whole also --8-- designated! 5 Früfkopfhalterung are fastened. The probe holder --8-- heard to the test manipulator as a whole marked with PM. The probes --7-- are preferably cardanic, at a balance beam --Sports club-- stored (in detail not represented), whereby the Sahwinghebel pneumatically or in other way feather-flexibly in the direction of the test course --9-- is angefedert and at the arm --8b-- in the hinge point --8c-- is tiltable stored. The arm --8b-- again is at the testcourse-lateral front surface of a ring framework --i0-- fastened. The ring framework --10-- is between guiding roles attacking at his interior extent --11-- a carriage --12-- on the one hand and an idler body attacking at its outer circumference --13-- on the other hand in Umfangsriehtung swivelling stored. The idler body --13-- sits on one at the carriage --12-- fastened clevis mounting --14-- and is with this clevis mounting --14-- over a clamping eccentric cam --15-- coupled, so that the idler body --13-- in and except interference concerning the ring framework --I0-- to be swivelled can. At its interior extent is the ring framework --I0-- with a gear rim --150-- provided, that with the drive pinion --16-- a driving motor --17-- , that combs for his part at the carriage --12-- is fastened. The carriage --12-- points a walking mother body --12a-- with internal thread up, by which a screw pillar provided with external thread --18-- is passed through. The screw pillar --18-- is at its two ends --18a and 18b-- in appropriate camps of a support frame --19-- swivelling stored, whereby the spindle on the side of their camp --1Sb-- over a gear wheel --18c-- with the drive pinion --20a-- a spindle driving motor --20-- is swivelling coupled. Spindle driving motor --20-- and spindle camps --1Sb-- are from a front plate --19b-- the support frame --19-- held, the spindle camp --18a-- of an appropriate front plate --19a--. The carriage --12-- in addition is with axial guide bushes--12b-- provided, which its Verdrehun serves ssieherung and at the carriage plate --12c-- are fastened. Executions for the spindle --18-- and axial guide rods --21-- are shown in Fig.2. Fig.2 in connection with Fig.l shows that the support frame --19-- by means of joint feet --22-- and - for Sehnellmontage - by means of einrastbarer means of mounting --23-- at his four corner points on the tubing outer circumference it is so centered put onable that the framework longitudinal axis oh savings allele only tubing axle --l' is oriented and the pairs of framework feet --22, 22-- the framework faces --19a, 19b-- ever a Rohrb0genstück lying in a rohrqueren level --la-- span. This piece of tube bend --la-- about 1/6 to 1/8 of the tubing extent constitute in the represented remark example; this length of curve is appropriate, thus a sufficiently precisely centering guidance between the roles --11 and 13-- for the ring framework --10-- is ensured. The ring framework --10-- is with two Seharnie EN --10a-- to the Aufund pushing two Bogenstüeke to --10b-- provided, what latters by a catch --10c-- to be with one another rigidly connected can. This catch --10c-- covered e.g. a clip-like body, that by means of Durchsteekstiften or pin with the pieces of sheet --10b-- to be locked can. The einrastbaren means of mounting --23-- are preferentially implemented as magnetic disks, which are weakly concave curved according to the tubing curvature, so that a full plant is ensured. They are in recesses --24-- one centers on the pipe --1-- put onable Ringschablone --25-- inserted. There is two Ringschablonen at the two ends of the ring framework --19-- planned. These are put on on the tubing outer circumference once and for all adjusted and can remain at this also if the test manipulator is removed; since they are very flat, they do not disturb an applying of the drilling isolation. The two Ringschablonen --25-- is axially divided, whereby the two template halves at their a joint by a hinge --26-- articulated connected and at their other joints by a flange catch --27-- are connected. From Fig.l it is evident that the test course --9-- mäanderförmig width runs with an axial I0 --28--. To the driving off of this test course --9-- the test manipulator is brought first when its assembly assembling dash-dotted suggested with I, i.e. the support frame --19-- becomes (during decreasing pipe insulation) with his magnetic disks --23-- on the Ringschablonen present below the isolation already in position --25-- touched down, whereby the magnetic disks --23-- into the appropriate recesses --24-- fit. In this situation is the support frame --19-- and tubing oh savings allele already centers aligned. Hiebei is the carriage --12-- in proximity of the driving motor --20--, so that the idlers are easily accessible from the outside and can be opened. The Bingrahmen --10-- can between the roles --IL and 13-- begun and with the pinion --16-- are coupled. It knows now the test system mounting plate --8-- at the Bingrahmen --10-- are fastened, if these not anyway already at the ring framework --18-- was screwed on. Now can by manipulation. the drive --20-- the carriage --12-- with probe holder --8-- and probes --7-- into its test position IL to be axially proceeded. In this position the Vorsqhub takes place for the driving off of the test courses --9-- on the one hand by gradual drive of the Antriebsmetors --17-- for the execution of the extent steps --ga-- and on the other hand by switching on of the driving motor on --20-- alternating in both directions of rotation for the execution that tubing oh savings allele aligned test course way--9b--. With the test course manipulator according to invention do not only leave themselves ultrasonic testings would generally drive through, but volumetric examinations, i.e. e.g. also to eddy current inspections. Also it is possible, with the test manipulator a Fernseh-13eobachtungseinrichtung along appropriate courses to be led or a Schweißkopf0 if in inaccessible places operated by remote control be welded is.