Online measuring tool and measuring method for high temperature gas cooled reactor heat transfer unit internal cylinder component outer circle finish turning

Abstract

The invention discloses an online measuring tool and measuring method for high temperature gas cooled reactor heat transfer unit internal cylinder component outer circle finish turning. The online measuring tool comprises a support, a pair of upper rolling wheels, a pair of side rolling wheels and a measuring mechanism, the support is shaped like C, the opening of the support is arranged to face downwards, the upper rolling wheels are connected to the two side faces of the upper end of the support through a rolling wheel shaft respectively, the side rolling wheels are connected to the two side faces of one end of the support through another rolling wheel shaft respectively, the measuring mechanism is arranged at the other end of the support, the measuring mechanism comprises a push rod, a measuring head and a dial gage, the push rod is arranged longitudinally, the upper end of the push rod is connected to the support through a push rod shaft, the push rod can swing around the push rod shaft, a through hole is formed in the lower end of the push rod, one end of the measuring head penetrates through the through hole and the support to be arranged on the outer side of the support and connected to the dial gage, and the other end of the measuring head is arranged on the inner side of the support. By means of the online measuring tool and measuring method for high temperature gas cooled reactor heat transfer unit internal cylinder component outer circle finish turning, the size of an outer circle of a machining workpiece can be measured online under the situation that a lathe is not stopped.

Description

technical field [0001] The invention relates to an outer circle measurement technology, and more specifically relates to an online measuring tool and a measurement method for the outer finish car of the inner cylinder assembly of the heat exchange unit of a high-temperature gas-cooled reactor. Background technique [0002] The high-temperature gas-cooled reactor belongs to the fourth-generation nuclear reactor technology. The world's first high-temperature gas-cooled reactor demonstration project Huaneng Shidaowan Nuclear Power Plant Reactor is one of the 16 major national science and technology projects. It is the world's first nuclear energy system with the safety features of the fourth generation nuclear power plant. The project started construction at the end of 2012 and is scheduled to be put into operation for power generation at the end of 2017. The heat exchange unit is an important part of it, and the inner cylinder assembly is a key component of the heat exchange ...

AI Technical Summary

Problems solved by technology

It takes a process from entering the tool to forming a stable cutting state, which will inevitably leave tool marks at the junction of the two turnings, which will affect the shape and dimensional accuracy, and even produce forced friction similar to when the tool is blunt, which will seriously affect Surface roughness and tool durability, and frequent parking, greatly affect processing efficiency

If the non-contact measurement method is used, the effect is not good due to the reflection of the surface to be measured, the influence of the special cutting fluid used in turning, the vibration generated when the super-long workpiece is rotated, and many other factors, and the price of this measurement equipment Expensive and demanding on users

Images