dihedral compactor

Abstract

The invention discloses a dihedral angle compactor which comprises a square cross beam (2) and wing frame beams (1), wherein the wing frame beams (1) are respectively hinged with two ends of the cross beam; a threaded hole is vertically formed in the middle of the cross beam (2) along a vertical direction; a screw rod (3) passes through the threaded hole; the lower end face of the screw rod (3) props against the surface of a pressing block (4); a structure which is arranged in a form of 135-degree obtuse angle formed by two planes is arranged on the other side, opposite to the resisted surface, of the pressing block (4); rubber gaskets are adhered to the two planes; in addition, side walls of end parts of the two wing frame beams (1) are vertically provided with through holes; fixing rods (8) used for fixing pass through the through holes; and the threaded hole on the cross beam (2) and the through holes on the wing frame beams (1) are same in drilling direction. The invention provides an assembling device for meeting the assembling precision of dihedral angle beams of a liquid goods enclosing system of an LNG (Liquefied Natural Gas) ship. The dihedral angle compactor has the characteristics of simple structure, low manufacturing cost, convenience in use, flexibility in operation and capability of effectively increasing the construction efficiency.

Description

technical field [0001] The invention relates to a special tool for shipbuilding, and more specifically relates to a tool used for assembling dihedral angle beams in a liquid cargo containment system of an LNG ship. Background technique [0002] When assembling the dihedral beams of the liquid cargo containment system of LNG ships, it is necessary to connect two 115mm wide plywood panels with thermal protection belts to form a dihedral beam with an angle of 135 degrees by invar steel strips. The longitudinal length is 1998mm, and the angle is guaranteed to be consistent throughout the length of the cargo compartment (about 49m). Since the dihedral beam must be in close contact with the surfaces of the two wooden boxes forming an angle of 135 degrees during assembly, the assembly accuracy is very high, and the flushness with the wooden boxes on both sides must reach ±1mm. It is difficult to effectively ensure the assembly accuracy of the dihedral angle in the entire length of...

AI Technical Summary

Problems solved by technology

Since the dihedral beam must be in close contact with the surfaces of the two wooden boxes forming an angle of 135 degrees during assembly, the assembly accuracy is very high, and the flushness with the wooden boxes on both sides must reach ±1mm. It is difficult to effectively ensure the assembly accuracy of the dihedral angle in the entire length of the cargo hold by pushing and pressing it by hand in this state, so it is necessary to invent an auxiliary tooling device

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