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Three-dimensional inner finned pipe machining cutter

An inner rib tube, three-dimensional technology, applied in the field of three-dimensional inner rib tube processing tool design, can solve the problems of different service life of the cutter teeth, affecting the service life, affecting the heat exchange efficiency, etc., to achieve a simple structure, prolong the overall service life, The effect of ensuring production efficiency and production quality

Inactive Publication Date: 2016-05-11
CHONGQING NENGKAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the above design is in use, because the structure of the cutter teeth is not well designed, the specifications of the processed three-dimensional inner rib tubes are not very uniform, which affects its heat exchange efficiency, and the service life of each cutter tooth is also different. Some are long and some are short, thus affecting the overall service life

Method used

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  • Three-dimensional inner finned pipe machining cutter
  • Three-dimensional inner finned pipe machining cutter
  • Three-dimensional inner finned pipe machining cutter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] like figure 1 , figure 2 , image 3 As shown, including the cutter head 2, the cutter head 2 is cylindrical, and several cutter teeth 3 are arranged on the circumference of the left end of the cutter head 2. Between each cutter tooth 3, there are grooves 4 between the cutter teeth, and the cutter teeth 3 The left end is made up of outer cutter face 3.1 and inner cutter face 3.3, and the left ends of outer cutter face 3.1 and inner cutter face 3.3 merge together to become blade 3.2 for processing workpieces, and the cutting edge of blade 3.2 is positioned at cutter tooth 3 outer sides, and inner cutter face The horizontal included angle of 3.3 is 45 degrees, the horizontal included angle of the outer cutter surface 3.1 is 20 degrees, the horizontal height of the blade 3.2 is 2mm higher than the horizontal height of the upper surface of the cutter head 2, and a knife is arranged between two adjacent cutter tooth groups. Tooth contraction joint 5, the knife tooth group ...

Embodiment 2

[0026] Changes are made on the basis of Embodiment 1, the horizontal included angle of the inner cutter face 3.3 is changed to 70 degrees, the horizontal included angle of the outer cutter face 3.1 is changed to 30 degrees, and the horizontal height of the blade 3.2 is higher than that of the upper surface of the cutter head 2 The height of the horizontal height becomes 3mm, and other is the same as embodiment one.

Embodiment 3

[0028] Changes are made on the basis of Embodiment 1, the horizontal included angle of the inner cutter face 3.3 is changed to 60 degrees, the horizontal included angle of the outer cutter face 3.1 is changed to 25 degrees, and the horizontal height of the blade 3.2 is higher than that of the upper surface of the cutter head 2 The height of the horizontal height becomes 2.5mm, and other is the same as embodiment one.

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Abstract

The invention relates to a three-dimensional inner finned pipe machining cutter and belongs to the technical field of three-dimensional inner finned pipe machining cutter design. The three-dimensional inner finned pipe machining cutter comprises a cutter bit which is cylindrical. Multiple cutter teeth are arranged on the circumference at the left end of the cutter bit. A cutter tooth groove is formed between every two adjacent cutter teeth. The left end of each cutter tooth is composed of an outer cutter face and an inner cutter face. The left end of each outer cutter face and the left end of the corresponding inner cutter face are combined together to form a blade used for machining a workpiece. Blade tips of the blades are located on the outer sides of the cutter teeth. The horizontal included angle of each inner cutter face ranges from 45 degrees to 70 degrees. The horizontal included angle of each outer cutter face ranges from 20 degrees to 30 degrees. The horizontal height of each blade is 2 mm to 3 mm larger than that of the upper surface of the cutter bit. The three-dimensional inner finned pipe machining cutter is simple in structure, under the structural limitation of the outer cutter faces and the inner cutter faces and the structural limitation of the blades, the service life of the cutter teeth is effectively unified, and the overall service life of the cutter teeth is prolonged; and meanwhile the production efficiency and the production quality of three-dimensional inner finned pipe machining are guaranteed.

Description

technical field [0001] The invention relates to a three-dimensional inner ribbed tube processing knife, which belongs to the technical field of design of three-dimensional inner ribbed tube processing knife. Background technique [0002] At present, the three-dimensional inner finned tube used is a tubular heat exchange element with a very good heat exchange effect in heat exchange equipment, which can achieve the purpose of energy saving and environmental protection. The main structural features of the three-dimensional inner finned tube include the smooth tube, and the rib teeth are plowed on the inner surface of the smooth tube, thus forming a three-dimensional structure as a whole, which effectively improves the convective heat transfer of the single-phase fluid in the tube and the phase change heat in the tube. . When processing three-dimensional inner ribbed tubes, it is difficult to plow rib teeth on the circumferential surface of the tube with traditional cutting to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D79/00
Inventor 周世平
Owner CHONGQING NENGKAI TECH CO LTD
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