DE202017006047U1 - Remote control with tube bridge tripod - Google Patents

Abstract

Remote control with tube bridge tripod for spotlights of gamma radiography equipment having a positionable radiator and a housing which serves to shield the radiator when the radiator is in a parking position within the housing, the remote control essentially comprising - a push and pull transmitting drive cable ( 1) with coupling means for displacing the emitter between the parking position and an exposure position outside the housing, and a winding drum (6) with a drive (2) for the drive cable (1), - an upper support part (5) for mounting the rotatable winding drum (5) 6) and - a releasably connected to the upper stand part (5) connected lower stand part (9) for the installation of the remote control, characterized in that the lower stand part (9) has an exchangeable base plate (11) on the exchangeable clamping means for Fixation of the lower stand part (5) on pipe bridge s, work platforms or carrier profiles are arranged.

Description

The invention relates to a remote control with tube bridge tripod for radiator container of Gammaradiografiegeräten having a spatially displaceable radiator and a housing, according to the preamble of the first claim.

Non-destructive testing (NDT or NDT) uses gamma radiography equipment with various gamma-emitting nuclides (Ir-192, Cs-137, Yb-169, Se-75, Co-60) as radiation-active substances for fault diagnosis in materials or welds , In this method, referred to as gamma radiography, the local transmittance of the radiation emitted by the radiator is detected during the material penetration and the material density distribution is stored as gray-scale distribution on X-ray films. The equipment for the Gammaradiografie altogether consists of a Strahlerbehälter (eg "Gammamat") with spotlight and housing, which radiator holder, shielding and radiator lock system exhibits, a radiator guidance with Ausfahranschluss, Kollimator (Strahlenblende) and Ausfahrspitze and a remote control. In the tubular or tubular emitter guide, the emitter is safely moved into an exposure position on the collimator with the extension tip serving as a stop and back again. With the help of the remote control, the radiator is pushed mechanically from a parking position in the radiator container in the radiator guide to the exposure position or pulled back from this in the parking position.

The remote control consists of a remote control connector, a drive cable including radiator coupling element, a cable guide hose and a hand cranked transmission.

When not in use, the radiator is stored in the radiation shielding housing (shielding) of the lamp holder secured (parking position) and positioned for the diagnosis in situ by axially extending from the shield on the sample to be irradiated (exposure position). The movement of the radiator for the material test must be effected via the remote control in order to ensure the necessary radiation protection for the test operator (tester) by sufficient distance from the radiator.

In practice, mechanical remote controls have been common for years. The previously known remote controls from different manufacturers are based on the same basic principle. They always contain an acting after the Bowden cable principle drive cable, which is guided in a cable guide tube. Drive cable and cable guide hose are designed so that they both transmit tensile forces and compressive forces, in contrast to a Bowden cable. The drive cable has for this purpose a plurality of parallel wires in the longitudinal direction, which are enveloped by a spiral winding and laterally to a certain radius of curvature are elastically deflected from the longitudinal axis. The cable guide hose consists essentially of a spiral winding or plastic insert which is elastically deformable up to a minimum radius of curvature transversely to the longitudinal axis and a tubular outer coating.

The cable guide hose has at one end coupling means for a remote control drive and at the opposite end standardized exchangeable coupling means for the spotlight container, which are designed differently depending on the type and manufacturer of the spotlight container. The drive cable has at one end a standard replaceable coupling piece for the radiator. For example, screw connections or plug-in couplings on the cable guide hose are known as coupling means for spotlight container housing and ball couplings as coupling means for radiators. The drive cable is moved longitudinally relative to the cable guide tube by means of a commercially available standardized manual drive (drive box). The cable guide hose is detachably connected to the drive housing with the aid of its coupling means. The at least the travel distance of the radiator longer drive cable is moved back and forth on the force acting and / or positively acting on the drive cable transmission of the drive in the cable guide hose and pushed out the end with the coupling piece from the cable guide hose or retracted. After the cable guide hose of the remote control has been connected to the spotlight of the gamma radiography device and the drive cable to the spotlight, the radiator for material analysis by the drive of the remote control along the emitter guide can be moved to the desired exposure position. The projecting after retraction of the drive cable for parking the spotlight in the spotlight container from the cable guide hose and drive free end of the drive cable is usually protected with another cable guide hose against damage and contamination. The acting as a memory or magazine for the retracted drive cable second cable guide tube is attached thereto via analog coupling means on the drive cable outlet opening on the drive housing. It is alternatively known to the second cable guide hose and a fixedly arranged on the frame or remote control block spirally curved magazine tube, which protrudes from the device-side cable guide hose section of the drive cable when pulling the Spotlight is in the park position, so that only a cable guide hose must be wound up.

For the transport of the remote control hoses, the cable hoses, which are up to 15 meters long, are wound up manually. As a winding aid for the cable hoses exist various mobile remote control racks or remote control frames, hereinafter referred to as remote controls.

Such a remote control is in the DE 20 2010 015 964 U1 described. A disadvantage of the known solutions is that they have a chassis that is only suitable for transport and parking on level ground. On the other hand, if the site is located on pipe bridges, pipelines or working platforms, which can often only be reached by ladders, the known remote control racks prove to be too heavy, too bulky and unsuitable for safe installation in cramped locations.

The proposed solution is therefore the object of further developing a remote control of the type described so that it is easy to transport and handle even under difficult conditions, such as pipe bridges.

According to the invention the object is achieved by a remote control with tube bridge stand with the features of the first claim. Advantageous developments are the subject of the dependent claims.

Due to the further development of the lower tripod part, as in the DE 20 2010 015 964 U1 is described, with a replaceable base plate, are arranged on the interchangeable clamping means for fixing the lower part of the stand, the respectively suitable clamping means can now be used in an advantageous manner for different types of use. For easily accessible locations, the well-known lower tripod part with chassis and stand can be used. After a change of the lower stand part, the foot plate according to the invention with replaceable clamping means in different modifications is used, which are designed ver¬ or clamped on pipe bridges, gratings or other lattice forms or on carrier profiles. With a central plug-in adapter, for example, the lower stand part can be plugged into the grid opening of a typical for pipe tracks or work platforms grid and the base plate by means of clamping means, in particular hooks kippfest be braced on the grid. After attaching the upper part with the winding drum, the remote control is mounted in a small space and ready for use. By quickly changing the plug-in adapter, the remote control foot can be converted to any standard grid and grid shape. The further embodiments of the clamping means, such as clamps or magnets, allow a fixation of the remote control also on vertical or horizontal support profiles of different shapes and cross sections. With a rotatably mounted on the tripod base plate, the remote control can always be aligned during use in the direction of the remote control hose, so that a trouble-free unwinding and rolling up of the hose is guaranteed without kinks.

The inventive design of the lower stand part thus has the advantage that a practical and flexible usable holding device for the remote control is created by a changeability of the foot plate, which allows the use of the remote control even in hard to reach locations.

In the following, the proposed remote control solution solution for gamma radiography equipment will be explained with reference to a known remote control embodiment and to some replaceable base plate embodiments. The accompanying drawings represent:

1 : Front view of the remote control with tube bridge tripod

2 Image: Side view of remote control with tube bridge tripod

3 : schematic representation of a first Fußplattenvariante

4 : schematic representation of a second Fußplattenvariante

5 : schematic representation of a third Fußplattenvariante

6a : 3D illustration of a fourth footplate variant

6b : Front view of the fourth footplate variant

Like from the 1 and 2 As can be seen, the remote control with tube bridge stand consists essentially of a compressive and tensile forces transmitting drive cable 1 with coupling means for displacing the radiator between the parking position and an exposure position outside the housing, a winding drum 6 with a drive 2 for the drive cable 1 , an upper tripod part 5 for the storage of the rotating winding drum 6 and one lower stand part 9 for the installation of the remote control.

At the upper part of the tripod 5 is a winding drum 6 centric and rotatable on a fixed to the stand part 5 connected horizontal axis arranged. The winding drum 6 is formed in a conventional manner from the drum side parts, a plurality of axially parallel connecting webs between the drum side parts and equidistantly distributed within the outer diameter of the drum side parts and from a drum hub. Instead of the connecting webs, a cylindrical jacket-shaped support surface for the winding and storage of the cable guide hose 3 be provided during transport. The winding drum 6 is with a firmly on the tripod part 5 arranged manually or remotely operable winding drum lock 7 secured against unintentional unwinding. The preferably above the winding drum 6 arranged winding drum lock 7 essentially has a displaceable or pivotable lever, which in a corresponding recess on the periphery of one of the drum side parts of the winding drum 6 engages radially or axially and is preferably formed latched under spring pressure. The hub of the winding drum 6 has one on the axis of the winding drum 6 arranged frictional Abwickelbremse 4 , so that by the sliding friction braked rotating the winding drum 6 a torsion or twist-free unwinding and a similar winding of the wound thereon cable guide hose 3 is possible. At the winding drum 6 is located laterally and concentrically to the axis of a drive 2 with a hand crank or a position-controllable motor (servo drive) for moving the winding drum 6 or the drive cable 1 , where the housing of the drive 2 non-rotatable with the winding drum 6 connected is. The drive 2 has one of the hand crank or motor-driven drive wheel, which has a constant gap in the circumferential direction to the housing of the drive 2 forms and non-positively and / or positively in the semicircular guided on the inner circumference of the housing drive cable 1 intervenes. Preferably, the drive wheel has on the outer circumference to the cross section of the drive cable 1 adapted groove with helical teeth, which are in the recesses of the spiral wrap of the drive cable 1 positively engages and so when turning the drive wheel, a displacement of the drive cable 1 relative to the housing and thus also relative to the cable guide hose 3 causes the drive of the radiator with the housing of the drive 2 connected is. For low-wear and low-friction guidance of the drive cable 1 in the drive 2 are on the inside of the housing plastic rings with recesses on the housing openings for the drive cable 1 arranged. At the first housing opening for the drive cable 1 is a curved spring-loaded elastic pipe connection to the cable guide hose 3 with the housing of the drive 2 screwed, the second housing opening (drive cable outlet opening) is also via a screw connection with a magazine tube 8th connected. That at the drive 2 starting outwards spirally bent in one plane and inside smooth magazine tube 8th is laterally and concentrically on a drum side part of the winding drum 6 fixed by means of pipe fasteners and leads or stores the drive cable 1 with a given continuous curvature. Instead of a tube, which is preferably made of stainless steel, a second cable guide tube can serve as a magazine for the drive cable. At the extendable end of the drive cable 1 is a Strahlerkopplungsmittel and the cable guide hose 3 a housing coupling means arranged.

For the use of the radiation source in confined space conditions and for the purpose of disassembly of the lower part of the stand 9 is a detachable connection, such as a plug connection 18 with screw connection, between which the winding drum 6 Overlying upper tripod part 5 with handle and the lower stand part 9 available. The plug connection 18 is analogous in the DE 20 2010 015 964 U1 described. After loosening the plug connection 18 let the winding drum 6 comfortable on the handle of the upper tripod part 5 and the lower part of the stand 9 transport separately to the job site.

The lower tripod part 9 is now designed to use the remote control for material testing under difficult installation conditions in a new way, by using a replaceable footplate 11 has, at the exchangeable clamping means for fixing the lower part of the stand 5 are arranged in particular on pipe bridges, working platforms, railings, support profiles or the like. For the lower part of the stand 9 For static reasons, a Z-shape is proposed, as in 2 illustrated, wherein the horizontal ridge should have about a length which corresponds to the radius or half the depth of the base plate 11 equivalent. The lower tripod part 9 is a basic version designed rigidly.

The foot of the lower part of the stand 9 indicates in a first embodiment according to 3 a preferably circular, but also oval or rectangular planar base plate 11 on, on the ground, z. B. on a grid 10 rests, taking on the bottom of the foot plate 11 at least one prismatic plug-in adapter 12 preferably centrally under the footplate 11 is arranged and fitting in one of the recesses of the grid 10 engages to prevent the remote control from moving during use. At the periphery of the foot plate 11 are at least two opposite hook 13 Arranged in the grate 10 engage and the foot plate 11 and thus the remote control stand on the grid 10 clamp tightly.

The foot plate 11 is detachable and interchangeable with the lower part of the stand 9 connected. With the help of a central connector 11s on top of the foot plate 11 this is in the hollow profile of the lower part of the stand 9 rotatably inserted and with a locking pin 15 fixable. The foot plate 11 has a diameter of for example 150 to 300 mm. In an advantageous embodiment, the connector 11s equipped with a (not shown) pivot, which is a horizontal rotational movement of the remote control (the lower part of the tripod 9 ) relative to the base plate 11 causes. In case of use, an automatic alignment of the remote control during the rolling of the remote control hose can be made possible.

The plug adapter 12 for the grate 10 is also removable replaceable, preferably analogous to the base plate 11 designed pluggable and has a connector in the hollow connector 11s insertable and with the locking pin 15 on the foot plate 11 is fixable, with several plug-in adapters 12 with different dimensions, which are matched to the usual grating or grid hole dimensions, are provided. There are currently two standardized sizes of gratings with grids of 30 × 30 mm or 30 × 10 mm, so that at least two matching plug adapters 12 are to be provided.

The clamping means are preferably as approximately L-shaped hooks 13 formed, with the short legs through the grid 10 durchsteckbar and are designed pivotally under the grate bar and the long legs in holes of about 6-10 mm in the base plate 11 are mounted longitudinally displaceable and one spring each 16 between the foot plate 11 and a solid handle 17 is arranged at the end of the long thigh. The spring force becomes the foot plate 11 on the grid 10 held. Instead of springs, the hooks 13 be equipped with a threaded portion on the long leg and the grips 17 have a matching internal thread, so that the foot plate 11 with the grate 10 can be screwed without play.

For applications in which the remote control is not on a wire rack 10 can be fixed and only carrier profiles 21 can be used at the installation for a fixation of the remote control, the clamping means according to a second embodiment in 4 against a U-shaped clamp 19 with threaded sections at each end and grips 17 with internal thread or toggle nuts 20 replaced. With the clamp 19 becomes the carrier profile 21 includes and by means of grips 17 or toggle nuts 20 against the foot plate 11 braced. For the clamp 19 can have the same holes in the footplate 11 as for the hooks 13 be used, so no other foot plate 11 needed would.

In a third embodiment of the foot plate 11 according to 5 are holding magnets 22 with correspondingly high holding forces on the underside of the foot plate 11 arranged. Such, known per se magnets consist of a light metal housing with mounting threaded holes and manually by means of actuating lever 22g activatable magnetic package. Holding forces up to 600 kg per magnet 22 are thus achievable with sufficient material thickness of the metallic substrate. With the help of magnetic clamps 22 the remote control can also be set up in the places for which the mechanical means previously described are insufficient. The magnets 22 are by means of grid holes 24 connected to the fixing holes in the housings of the magnets 22 correspond, in the foot plate 11 screwed.

The foot plate 11 can be advantageous in a fourth embodiment according to 6a as a universally usable base plate 11 be formed and for a plurality of radial slot-shaped recesses 23 at an angle of 45 °, 90 ° or 120 ° to each other and grid holes 24 have, in which arbitrary clamping means, in particular the hooks 13 and holding magnets 22 , optionally and interchangeably screwed. The grid holes 24 serve to fasten the magnets 22 on the foot plate 11 , therefore, their arrangement is based on the respective used magnets 22 Voted. Depending on the application and the magnetic properties may preferably two or four magnets 22 centrally symmetric on the foot plate 11 be arranged. In the center of the universal foot plate 11 is a recess for a plug-in adapter 12 intended. In the 6b is the foot plate 11 in the universal variant according to 6a shown in front view, with the plug adapter 12 that hook 13 with feather 16 and handle 17 and holding magnets 22 with operating lever 22g are visible. Instead of the already described clamping means, for example, straps, cable ties or link chains with or without hooks for a tension of the universal base plate 11 suitable for closed or open profiles.

Another, not shown advantageous embodiment of the base plate 11 is that with an additional connector rotated 90 ° vertically and thus laterally on the lower part of the tripod 9 is firmly stored. With the then laterally on the lower part of the stand 9 arranged clamping devices, the remote control on side panels, columns, railings or vertical support profiles 21 fixed become. Other embodiments of the pipe bridge stand with other foot plates or clamping means for adaptation to special application requirements do not leave the scope of the claims.

Advantageous for the transport of the remote control is when the lower stand part 9 a lockable swivel 14 having, whereby a part of the lower part of the stand 9 with the foot plate 11 to reduce the space required for the upper part of the stand 5 is foldable. Thus, the space required for the remote control can already be significantly reduced, without disassembly of the lower part of the stand 9 is required.

After installation and fixation of the remote control at the place of use, the cable guide hose will be 3 after manually releasing the winding drum lock 7 by pulling from the winding drum 6 unrolled. To ensure even unwinding, the built-in unwinding brake is used 4 , Is the complete unrolling of the cable guide hose 3 takes place, the winding drum lock 7 locked again and the unwound end of the cable guide hose 3 and the drive cable 1 connected via the coupling means with the housing of the spotlight container and with the radiator. With locked winding drum 6 and thereby rotatably fixed housing of the drive 2 By actuating the hand crank or a motor drive, the drive torque is completely transmitted to the drive cable via the drive wheel 1 transferred so that the drive cable 1 from the magazine tube and the cable guide hose 3 pushed out and thus the emitter in the emitter guide is translationally moved to the intended exposure position outside the emitter container. When the exposure of an X-ray film is completed, the drive cable is rotated in the reverse direction by means of a hand crank rotation or activation of a servo or stepper motor 1 withdrawn. That from the cable guide hose 3 returned drive cables 1 is in the closed magazine tube 8th stored and thus protected in a space-efficient manner against contamination and deformation. After the drive cable 1 completely in the cable guide hose 3 has retracted and the spotlight is back in parking position in the shielded housing of the spotlight box, the cable guide hose 3 and the drive cable 1 decoupled from the housing of the lamp holder and the radiator by releasing the coupling means. By re-loosening the winding drum lock 7 can the cable guide hose 3 on the winding drum 6 be rolled up using the winch / servo drive. About the one mechanical stop for the retracted radiator coupling element forming housing coupling element, the torque of the drive from the drive cable is passed to the winding drum, so that the full driving force for rolling up the cable guide hose 3 is available. In the end position of the winding drum 6 becomes the winding drum lock 7 engaged again for transport, thus preventing accidental unrolling. Through the central alternative drive 2 of drive cable 1 or winding drum 6 with torque distribution by means of winding drum lock 7 is the use of a single drive means for both the movement of the radiator and for winding the cable guide hose 3 with drive cable 1 possible.

LIST OF REFERENCE NUMBERS

1

drive cable

2

drive

3

Cable hose

4

unwind brake

5

Upper tripod part

6

winding drum

7

Wickeltrommelarretierung

8th

Magazine tube, magazine tube

9

lower tripod part

10

grating

11

footplate

11s

Connectors

12

plug-in adapter

13

hook

14

joint

15

safety pin

16

feather

17

grip

18

connector

19

tensioning bow

20

butterfly nut

21

carrier profile

22

Holding magnet

22g

operating handle

23

recesses

24

grid holes

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202010015964 U1 [0008, 0011, 0023]

Claims (10)

Remote control with tube bridge tripod for spotlights of gamma radiography equipment having a positionable radiator and a housing which serves to shield the radiator when the radiator is in a parking position within the housing, the remote control essentially comprising - a compression and traction transmitting drive cable ( 1 ) with coupling means for displacing the radiator between the parking position and an exposure position outside the housing and a winding drum ( 6 ) with a drive ( 2 ) for the drive cable ( 1 ), - an upper stand part ( 5 ) for the storage of the rotatable winding drum ( 6 ) and - one detachable with the upper part of the stand ( 5 ) connected lower tripod part ( 9 ) for the installation of the remote control, characterized in that the lower stand part ( 9 ) an exchangeable foot plate ( 11 ), at the exchangeable clamping means for fixing the lower stand part ( 5 ) are arranged on pipe bridges, working platforms or on carrier profiles. Remote control according to claim 1, characterized in that the foot plate ( 11 ) detachable with the lower stand part ( 9 ), for example with a connector ( 11s ) in the lower stand part ( 9 ) and with a locking pin ( 15 ) is fixable, wherein the connector ( 11s ) is rotationally fixed or has a rotary joint which a horizontal rotational mobility of the lower part of the stand ( 9 ) relative to the foot plate ( 11 ). Remote control according to claim 1 or 2, characterized in that - on the underside of the foot plate ( 11 ) at least one centrally arranged prismatic plug-in adapter ( 12 ), fits into one of the recesses of a grid ( 10 ), and - at the periphery of the foot plate ( 11 ) at least two opposing hooks ( 13 ) placed in the grate ( 10 ) and the foot plate ( 11 ) on the grid ( 10 ), are arranged. Remote control according to claim 3, characterized in that the plug adapter ( 12 ) exchangeable, preferably pluggable and with the locking pin ( 15 ) fixable, with the foot plate ( 11 ) and several plug-in adapters ( 12 ) with various dimensions matched to the grate or grid hole dimensions. A remote control according to claim 3, characterized in that the hooks ( 12 ) as L-shaped hooks ( 13 ) are formed, wherein the short legs through the grid ( 10 ) are made push-through and pivotable and the long legs in holes in the base plate ( 11 ) are mounted longitudinally displaceable and in each case a spring ( 16 ) between the foot plate ( 11 ) and a handle ( 17 ) is arranged at the end of the long leg. Remote control according to claim 3, characterized in that the hooks ( 13 ) have a threaded portion on the long leg and the grips ( 17 ) have a matching internal thread. Remote control according to claim 1, characterized in that the clamping means a U-shaped clamping bracket ( 19 ) with threaded sections at each end and toggle nuts ( 20 ). Remote control according to claim 1, characterized in that the clamping means holding magnets ( 22 ), which are at the bottom of the front panel ( 11 ) are screwed. Remote control according to claim 1, characterized in that the foot plate ( 11 ) radial slot-shaped recesses ( 23 ) and grid holes ( 24 ), in which hooks ( 13 ), Clamping bracket ( 19 ), Holding magnets ( 22 ) or other clamping means are selectively and interchangeably screwed. Remote control according to one of the preceding claims 1 to 9, characterized in that the lower stand part ( 9 ) a swivel joint ( 14 ), whereby a part of the lower part of the stand ( 9 ) with the foot plate ( 11 ) to reduce the space required for the upper part of the stand ( 5 ) is foldable.

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