CN219520693U - Metal saw blade capable of prolonging abrasion - Google Patents
Metal saw blade capable of prolonging abrasion Download PDFInfo
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- CN219520693U CN219520693U CN202320575075.7U CN202320575075U CN219520693U CN 219520693 U CN219520693 U CN 219520693U CN 202320575075 U CN202320575075 U CN 202320575075U CN 219520693 U CN219520693 U CN 219520693U
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Abstract
The utility model discloses a metal saw blade capable of prolonging wear, which is characterized in that a plurality of saw teeth are distributed on the periphery of the saw blade, each saw tooth is fixedly provided with cutter teeth, the arrangement of the cutter teeth is formed by alternately distributing left helical teeth, right helical teeth and sharp teeth, the sharpening angle of the left helical teeth and the right helical teeth is not more than 40 degrees, the sharpening angle of the sharp teeth is not more than 60 degrees, wherein the tooth edges of the left helical teeth, the right helical teeth and the sharp teeth are all in a flat angle, and the width of the flat angle is not more than one third of the tooth width. The metal saw blade reduces the sharpening angle of the tooth edge of the cutter tooth and reduces the width of the chamfer angle of the tooth edge, so that the length of the tooth edge in the abrasion direction is increased, the redundancy quantity of the tooth edge for abrasion is increased, the abrasion of the cutter tooth is prolonged, the service life of the metal saw blade is prolonged, the width of the chamfer angle is shorter, the cutting resistance of the cutter tooth can be reduced under the condition that the cutter tooth has enough strength, and the cutting stability is improved.
Description
Technical Field
The utility model relates to the technical field of circular saw blades, in particular to a circular saw blade for cutting metal.
Background
The cutter teeth of the metal saw blade with relatively long service life in the market at present mainly adopt half-chamfer teeth. The half chamfer tooth is formed by grinding the cutting edge tips of the tooth edges of the left helical tooth and the right helical tooth into a chamfer angle. The tooth edge sharpening angle of such semi-chamfer teeth is typically 45 deg., and the width of the chamfer angle is half the tooth width. When cutting, the cutter tooth has smaller cutting resistance and longer service life. The wear 4 of the tooth tip is dominant and the wear of the tooth side is small, and the length of the tooth edge of the half-chamfer tooth in the wear direction is also short, that is, the redundancy of the tooth edge for wear is small, and whether improvement can be made by increasing the length of the tooth edge or not is not, a metal saw blade capable of prolonging the wear of the tooth edge is developed so as to increase the redundancy of the tooth edge wear and further prolong the service life of the metal saw blade.
Disclosure of Invention
The utility model aims to provide a metal saw blade capable of prolonging abrasion.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a metal saw bit that can prolong wearing and tearing, the peripheral distribution of saw bit has a plurality of sawtooth, all is fixed with the sword tooth on every sawtooth, the layout of sword tooth is by left helical tooth, right helical tooth and sharp tooth alternate distribution, its characterized in that: the sharpening angles of the left helical teeth and the right helical teeth are not more than 40 degrees, the sharpening angles of the sharp teeth are not more than 60 degrees, wherein the tooth edges of the left helical teeth, the right helical teeth and the sharp teeth are all of a back-off angle, and the width of the back-off angle is not more than one third of the tooth width.
The utility model has the beneficial effects that: the metal saw blade reduces the sharpening angle of the tooth edge of the cutter tooth and reduces the width of the chamfer angle of the tooth edge, so that the length of the tooth edge in the abrasion direction is increased, the redundancy quantity of the tooth edge for abrasion is increased, the abrasion of the cutter tooth is prolonged, the service life of the metal saw blade is prolonged, the width of the chamfer angle is shorter, the cutting resistance of the cutter tooth can be reduced under the condition that the cutter tooth has enough strength, and the cutting stability is improved.
Drawings
Fig. 1 is a schematic view of the teeth of the metal saw blade of the present utility model.
Description of the embodiments
As shown in figure 1, a metal saw blade capable of being worn in an extending mode is characterized in that a plurality of saw teeth are distributed on the periphery of the saw blade, cutter teeth are fixed on each saw tooth, and the arrangement of the cutter teeth is alternately distributed by left helical teeth 1, right helical teeth 2 and sharp teeth 3. In the utility model, the sharpening angles of the left helical tooth 1 and the right helical tooth 2 are not more than 40 degrees, the sharpening angle of the sharp tooth 3 is not more than 60 degrees, wherein the tooth edges of the left helical tooth 1, the right helical tooth 2 and the sharp tooth 3 are all in a flat angle, and the width of the flat angle is not more than one third of the tooth width.
The edge angle of the traditional left helical teeth and right helical teeth is 45 degrees, and the edge angle of the sharp teeth (equivalent to trapezoidal teeth) is 90 degrees. The angle of the left helical tooth 1 and the right helical tooth 2 of the metal saw blade in the embodiment is 40 degrees, and the width of the tooth edge bevel angle is one third of the tooth width. The sharp teeth 3 have a sharpening angle of 58 deg., and the tooth edge has a flattening angle of one quarter of the tooth width. According to the technical saw blade, the sharpening angle of the tooth edge of the cutter tooth is reduced, and meanwhile, the width of the chamfer angle of the tooth edge is reduced, so that the length of the tooth edge in the abrasion direction is increased, the abrasion redundancy of the tooth edge for abrasion is increased, the abrasion of the cutter tooth is prolonged, the service life of the metal saw blade is prolonged, the width of the chamfer angle is shorter, the cutting resistance of the cutter tooth can be reduced under the condition that the cutter tooth has enough strength, and the cutting stability is improved.
Claims (1)
1. The utility model provides a metal saw bit that can prolong wearing and tearing, the peripheral distribution of saw bit has a plurality of sawtooth, all is fixed with the sword tooth on every sawtooth, the layout of sword tooth is by left helical tooth, right helical tooth and sharp tooth alternate distribution, its characterized in that: the sharpening angles of the left helical teeth and the right helical teeth are not more than 40 degrees, the sharpening angles of the sharp teeth are not more than 60 degrees, wherein the tooth edges of the left helical teeth, the right helical teeth and the sharp teeth are all of a back-off angle, and the width of the back-off angle is not more than one third of the tooth width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320575075.7U CN219520693U (en) | 2023-03-22 | 2023-03-22 | Metal saw blade capable of prolonging abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320575075.7U CN219520693U (en) | 2023-03-22 | 2023-03-22 | Metal saw blade capable of prolonging abrasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219520693U true CN219520693U (en) | 2023-08-15 |
Family
ID=87632912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320575075.7U Active CN219520693U (en) | 2023-03-22 | 2023-03-22 | Metal saw blade capable of prolonging abrasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219520693U (en) |
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2023
- 2023-03-22 CN CN202320575075.7U patent/CN219520693U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |