2results about How to "Safety flip" patented technology

This invention discloses a turning machine for producing subway tunnel segments, belonging to the field of tunnel segment turning technology. It includes a base frame, with adjustable rotating components connected to both sides of the upper surface of the base frame via short columns. A turning frame is mounted on each of the adjustable rotating components. The turning frame, driven by a hydraulic cylinder mounted within the base frame, rotates the tunnel segments placed on its surface from 0° to 180°. An adjustable support component is inserted into the turning frame. Through the set turning frame and adjustable support component, relay support is achieved between the two turning frames. Combined with the hydraulic cylinder drive, the turning of the tunnel segments from 0° to 180° can be stably completed without auxiliary hoisting, improving turning efficiency. The adjustable support component on the turning frame allows adjustment of the support rod protrusion height by rotating the threaded rod, reducing stress concentration, preventing tunnel segment damage, and adapting to the production needs of tunnel segments of different specifications.