Apparatus for releasably holding a pipe, rod or the like

US9057225B2 · kind B2 · utility

Assignee

• BLOHM + VOSS OIL TOOLS GMBH · DE

Inventors

• Andre Vierke · Hamburg, DE
• Frederik Stoldt · Hamburg, DE

Key dates

• Filing date: Jul 18, 2014
• Grant date: Jun 16, 2015
• Expiry date: Jul 18, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B2/14
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

For holding a pipe, rod or the like, such as a section of a pipe string of an offshore oil drilling rig, an apparatus includes a clamping device insertable into a support body. The clamping device includes a device body with a central opening bounded by an inner circumferential surface that conically tapers at a cone angle. The device further includes clamp elements that are received in the central opening of the device body and that each have a radially outer surface sloping along the cone angle to slide along the inner circumferential surface of the device body, and a radially inner clamping surface to clamp against the coaxially arranged pipe. A holding element respectively connects each clamp element to a linear actuator stroke element that is similarly tilted at the cone angle. The linear actuator may be received in a receiver shaft of the device body.