DD201264A1 - DEVICE FOR INTERIOR PROCESSING OF PANELS AND PIPES - Google Patents

Abstract

Apparatus for internal processing of containers and pipelines of large diameter, in particular for carrying out surface drilling and milling operations on steam generator drums, with a main spindle carried by means of support means. The object is to design the device so that all occurring damaged areas can be worked independently of their position and after the build-up welding a finishing of the applied surfaces is possible and the control can be made from the outside. For this purpose, according to the invention a drive unit formed from a gear and a gear motor is mounted on a front side of the main spindle, the support means are formed from a tensioned on the main spindle spanner with staggered by 120 degrees Verstellstuetzen and is mounted axially displaceable on the main spindle a tool holder, the one driven machining tool and this opposite opposite pendulum drive carries. Fig. 2

Description

Title of the invention

Apparatus for internal processing of containers and pipelines

Field of application of the invention

The invention relates to a device for internal machining of containers and pipelines of larger diameter, in particular for the execution of surface drilling and pres works on DampfampferertrommeIn, with a support means supported on the main spindle ».

Characteristic of the known technical solutions

To carry out drilling, milling and turning work in Be. .Hältern and pipes, especially in steam generator drums, it is known to use simple constructions in connection with lathe supports on which compressed air powered drills are attached * The attachment of these devices takes place on site by means of Clamps and wooden wedges or tensionable supports ", working in steam generator drums with these devices are associated with a great deal of set-up times, since all parts from the outside by relatively small. Openings must be introduced into the drum and assembled there ,,

In order to reduce the cost of set-up times, a device for holding and aligning a drill has been developed within a boiler drum (DD-PS 105 573), in which a carrier body with one of the wall

the drum adapted side surface is held by electromagnets on the drum wall. The use of this device is "limited, since the support body must be adapted to the wall, the size of the electromagnets don Binsatzbereich determined and the attachment of the drill does not allow much room for maneuver * It is also a drilling device for drilling holes in the wall of a hollow body of inside out known (DE-PS 1 477 263), but which is very complicated in construction, can only be used for drilling holes and for clamping in the container requires a liquid or gaseous medium, the support auf'einer page extremely unfavorable about the tool *

It is also a device for internal processing of containers and piping known (DD 136 350), in which a arranged on support means crank eccentric support with a bottom and overflow, is arranged. In this device, it is possible auszuschwenken with the support from the axis, to perform drilling, milling or filming off-center, Plächenhafte edits are not possible with this device »

In order to make on any large areas elaborations for the preparation of Instandhaltun.ssmaßnahmen, a device has been developed (DD 143 222), in which a transverse support with tool holder having shaft mounted in a mounted on a drum arranged in the drum adjustable bearings and a is mounted with another provided with an adjustable clamping slide bearing «With this device, only a sickle-shaped turning out of the damaged areas is possible. This results in unfavorable conditions for the subsequent build-up welding for the maintenance of the damaged area within the container or the boiler drum *

The device does not allow processing of larger areas on the circumference without repeated setting up of the device * A 3e ~ grinding of the build-up welding necessary after the build-up welding can not be realized with this device * The device can not be used for welding seam preparation when replacing the bottom of the vessel * Similarly, small and relatively deep cracking can not be eliminated, whereby the field of application of the device is very limited *

Object of the invention

The aim of the invention is' to carry out large-scale elaborations on container and Eohrleitungsinnenwandungen with little effort «

Explanation of the essence of the invention

The invention is based on the object, an apparatus for internal processing of containers and. To create pipelines with a support means supported on the main spindle and form so that all occurring damage can be worked out regardless of their position and after the build-up welding a finishing of the applied surfaces is possible and the delivery and control can be made from the outside.

This is inventively achieved in that a drive unit formed from a gear and a gear motor is mounted on a front side of the main spindle, the support means are formed of a conical 'clamping sleeves on the main spindle clampable spider with 120 offset Verstellstützen, wherein the Verstellstützen on End are provided with pressure screws and support prisms and on the main spindle a tool carrier is axially slidably mounted, which carries a known per se driven machining tool and is provided with a working tool opposite pendulum drive «

Two of the adjustable supports of each support device are provided with a pair of rollers on the side. * In later training, the pendulum drive is angled

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arranged *

embodiment

The invention will be explained in more detail below with reference to an exemplary embodiment. In the associated drawing:

Pig »1: the side view of the device,

Fig * 2: the front view of the device in working position

The device consists essentially of a main spindle 3, which is supported by several support devices 4. "On one end face of the main spindle 3, a drive unit formed by a gear 1 and a gear motor 2 is plugged in each formed of a tapered clamping sleeves on the main spindle '3 veraniibaren tensioning cross 5 with each offset by 120 ^ Verstellstützen δ. The adjustable supports

6 are provided at the free end with a pressure screw 7 and a support prism 8, wherein the pressure screw

7 in a threaded piece 13 (s "Fig" 2) is radially variable _o Thus, the Verstellstützen 6 and with them the entire device the most different drum durchmess em be adapted. Two of the Verstellstützen 6 each support means are provided on the side with a pair of rollers 12. Thus, the device can be moved axially with relieved pressure screws 7 in the drum.

On the main spindle 3 ₃ in which a threaded spindle is retracted, a tool carrier 9 is placed _β the tool carrier 9 is axially moved by a spindle nut through the threaded spindle «The tool carrier 9 is provided with a known driven machining tool ™ 10, ζ * Β, a router, opposite with

a pendulum drive 11 "provided *

On the pendulum drive 11, a driven punching device can be attached to the pendulum drive via a variable-length clamping device

The mode of action is the following:

The device is introduced in its assemblies main spindle 3, support means 4 and drive unit through corresponding openings in the Kesse! Drum and assembled there. Thereafter, the connection of the gear motors 2 for the drive unit ₃ for the machining tool 10 and the pendulum drive 11 with a central oil supply 14th *

Gear motor 2 is controlled outside the boiler! Drum *

The assembled device is moved axially into the area of surfaces damaged by cracks via the roller pairs 12 located on the adjusting supports 6. The adjusting device 6, the pressure screws 7 and the support prisms 8, which slide in the clamping crosses 5, slide the device locked in the drum of the boiler *

About two arranged on the pendulum drive 11 limit the pendulum deflection is set * ITacn the switching on the Präserantriebes the tool delivery according to the determined depth of crack «If the appropriate delivery for the machining tool 10 is reached, the pendulum drive 11 is put into operation and the prescription takes place in the circumferential direction of Boiler drum to shutdown by a limit switch *

With the shutdown of the pendulum drive 11, the axial feed of the tool carrier 9 with the pendulum drive 11 and your machining tool 10 is switched on a time relay »

Thus, the machining tool 10 moves by a defined th step in the axial direction * After reaching the end position; the pendulum drive 11 is switched on again

and the processing sequence repeats, as already described, until the crack-damaged surface has been worked out in the drum of the boiler, according to the rules of the invention. cue g & ochvveiiji / e before reworked with the gate direction »In the subsequent smoothing of the surface, a per se known grinding device is mounted instead of the tool carrier 9 with the machining tool 10 * The grinding process is realized in the same way with the device as the above-mentioned-machining. With the device according to the invention, it is possible, all drums on the inner walls of larger containers and pipes, especially at Kesse !, develop damaged areas for subsequent build-up welding and make the final machining after the build-up welding, with even the smallest and deep cracks work out With the device a SchweißnahtTorbereitung for the insertion of new container bottom is possible.

Claims (3)

4 IH / Cl H ' invention claim * Apparatus for internal machining of containers and pipelines of larger diameter, in particular for carrying out surface drilling and milling work on steam generator drums, with a main spindle supported by support means, characterized in that one of a gear (1) - and a gear motor (2) formed drive unit is attached to an end face of the main spindle (3), the Stütseinrichtungen (4) from a conical clamping sleeves on the main spindle (3) braced with the cross-over (5) each 120 displaced Verstellstützen (6) are formed, wherein the Verstellstützen (6) 'at the end with a pressure screw (7) and a support prism (8) are provided and on the main spindle (3) a tool carrier (S) is axially slidably mounted, which carries a per se known-driven machining tool (10 ') and with a the machining tool (10) opposite Pende!. Drive (11) is provided * 2 »Device according to item 1 , characterized in that two of the adjusting supports (6) of each supporting device (4) are provided on the side with a roller pair (12) ' 3 «Device according to item 1 and 2, characterized in that on the pendulum drive (11) via a angle-adjustable clamping device, a driven embossing device is arranged 'is« Fezu ... JlJatßn Mammom