Carriage with milling device for pipe rehabilitation
The universal trolley with a milling device addresses the limitations of existing robots by providing a 360-degree swivel and precise milling capability, ensuring effective rehabilitation of non-walkable pipes with reduced complexity and risk of leaks.
WO2026139113A2PCT designated stage Publication Date: 2026-07-02KRASOWSKI BERND JAN
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- KRASOWSKI BERND JAN
- Filing Date
- 2025-12-22
- Publication Date
- 2026-07-02
AI Technical Summary
Technical Problem
Existing milling robots for pipe rehabilitation are structurally complex, time-consuming, and prone to inaccuracies, with limited swivel range and milling area, leading to potential leaks during the process.
Method used
A universal trolley with a milling device featuring a complex drive section, adjustable milling head, and multiple cameras and sensors, allowing 360-degree swivel and precise milling of pipe inlets and outlets, equipped with adjustable locking devices and multiple shafts for enhanced maneuverability and milling precision.
Benefits of technology
Enables precise, efficient milling of the entire inner pipe wall, including pipe inlets and outlets, with reduced risk of leaks and improved accuracy, allowing for complete rehabilitation of non-walkable pipes.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure DE2025101218_02072026_PF_FP_ABST
Abstract
The invention relates to a universal carriage having a milling device for rehabilitating inaccessible pipes. The problem addressed by the invention is that of providing a carriage having a milling device for pipe rehabilitation, wherein a milling head can reach a large processing space and the pipe inlets and pipe outlets can be completely milled free again with precise contouring. The carriage according to the invention consists of a single driving section or two or more individual separate driving sections (1 and 2) that are connected to one another and on which one or more cameras and / or sensors are arranged. Each driving section is provided with adjustable fixing devices for positioning and fixing in relation to the inner wall of the pipe. In the case of a plurality of driving sections, i.e. a forward driving section (1) and a driven driving section (2), at least two shafts are connected to one another. Said shafts are arranged so as to be distributed eccentrically radially in the space. A shaft is configured as a rigid shaft (8). The second shaft is designed as a rotatable displacement shaft (7). Said displacement shaft (7) is guided in the interior of one of the driving sections and can be axially retracted or extended. Depending on the type of actuation, the displacement shaft (7) can travel along a specific axial region. A deflection gear (9) is arranged on the displacement shaft (8) and is driven by means of a separate drive via a drive shaft arranged inside the displacement shaft (8). A rotating milling shaft (10) that can be extended and retracted is guided in the deflection gear (9) and is provided with a milling head (11). The displacement shaft (7) can also be radially adjusted in space by means of two inner bearing discs (17). This is achieved in that the bearing discs (17) are rotated on both sides uniformly in the housing of the driving sections (1 and 2) in the same direction by means of a corresponding inner drive. The rotation is made possible vi
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