Portable large-sized flange plane survey meter

Abstract

The invention discloses a portable large-sized flange plane survey meter, which comprises a base, wherein a basal plane adjustment platform is arranged above the base; a supporting leg for support and fixation are horizontally arranged on the side face of the base; a connecting post vertical to the upper surface of the basal plane adjustment platform is arranged on the basal plane adjustment platform; the lower end of the connecting post is connected to the basal plane adjustment platform in a rotatable way; a rocker is horizontally arranged at the upper end of the connecting post; one end of the rocker is connected with a connecting rod; and a centimeter is arranged below the connecting rod. The portable large-sized flange plane survey meter is used for detecting and measuring a large-sized flange plane on site, greatly reduces labor time and labor intensity of workers, has accurate measurement data, is easy and convenient to disassemble and assemble and provides an extremely simple, convenient and accurate measurement method for certain shipyards without on-site processing equipment.

Description

technical field [0001] The invention relates to a measuring instrument, in particular to a large-scale flange plane measuring instrument applied in the field. Background technique [0002] Due to the large ships of the 10,000-ton class (including bulk carriers and container ships, etc.), almost all marine lifting equipment ----- CRANE (CRANE), which consists of tower body, lifting column and crane The installation process of the lifting column includes connecting the processed lifting column body on the main deck of the hull by welding, and then welding the lifting column flange body on the lifting column body. However, in the process of multiple hoisting and welding, it is inevitable to deform the plane of the originally processed flange. In most cases, this deformation will exceed the flatness tolerance range specified in the technical documents (not greater than 0.2mm), and some even reach The flatness tolerance is 0.8mm, and the flatness tolerance is an item that must b...

AI Technical Summary

Problems solved by technology

However, in the process of multiple hoisting and welding, it is inevitable to deform the plane of the originally processed flange. In most cases, this deformation will exceed the flatness tolerance range specified in the technical documents (not greater than 0.2mm), and some even reach 0.8mm, and this flatness tolerance is an item that must be inspected and controlled during the installation of the tower body by Klein Crane, so the on-site inspection and measurement of the flange flatness must be carried out before the tower body is installed, and corrections must be made for those out of tolerance

[0003] It is usually difficult to use instruments to accurately detect a flange surface with a diameter of more than 2 meters. Most shipyards use laser dots to read on the square, but the readings of the laser dots on the square are purely estimated. , there are human factors, and it varies with different measurers, resulting in limited reliability of the measured results

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