Tube head cutter for heat exchanger

Abstract

The invention provides a tube head cutter for a heat exchanger. The tube head cutter is characterized in that a blade screw site is arranged on a cutter body of the cutter, a blade fixing bolt is mounted in the blade screw site, a power connecting piece and a blade are connected to the cutter body through a blade fixing screw, and a bearing and a gasket are mounted at the other end of the cutter body and fastened on the cutter body through a bearing fixing bolt. The tube head cutter is simple in structure and can be operated by taking a common pipe expander for manufacture of the heat exchanger as a power source; as the bearing is arranged at a cutting head part, the stability is good, and damage to the inner wall of the heat exchanger during rotation can be reduced. The tube head cutter is high in cutting speed and the working efficiency can be greatly improved.

Description

technical field [0001] The invention relates to the field of cutters and cutters, in particular to a heat exchanger tube head cutter. Background technique [0002] At present, in most chemical equipment manufacturing enterprises, when manufacturing tube-sheet heat exchangers, it is necessary to weld one end of the heat exchange tube and the tube sheet, and then weld the other end of the tube sheet after welding. There is a deviation in the length. When the protruding length of one end of the tube plate is ensured to be consistent, the protruding length of the tube head at the other end of the heat exchange tube before the tube plate is welded will be different, which seriously affects the welding operation and appearance of the tube plate. The grinder grinds the protruding pipe heads to the same length. This operation method has many disadvantages: 1. Due to the limitation of the structure of the angle grinder, the polished pipe heads have a certain angle; 2. There will be m...

AI Technical Summary

Problems solved by technology

[0002] At present, in most chemical equipment manufacturing enterprises, when manufacturing tube-sheet heat exchangers, it is necessary to weld one end of the heat exchange tube and the tube sheet, and then weld the other end of the tube sheet after welding. There is a deviation in the length. When the protruding length of one end of the tube plate is ensured to be consistent, the protruding length of the tube head at the other end of the heat exchange tube before the tube plate is welded will be different, which seriously affects the welding operation and appearance of the tube plate. The grinder grinds the protruding pipe heads to the same length. This operation method has many disadvantages: 1. Due to the limitation of the structure of the angle grinder, the polished pipe heads have a certain angle; 2. There will be many burrs in the grinding that will affect the welding. Quality; 3. When grinding with a grinding wheel, there will be a lot of noise and iron dust; 4. The grinding wheel will be worn out, and it will hurt people when it is damaged. The operation is time-consuming and laborious, and the processing cost will be increased.

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