CN202963637U - Saw blade - Google Patents
Saw blade Download PDFInfo
- Publication number
- CN202963637U CN202963637U CN 201220700503 CN201220700503U CN202963637U CN 202963637 U CN202963637 U CN 202963637U CN 201220700503 CN201220700503 CN 201220700503 CN 201220700503 U CN201220700503 U CN 201220700503U CN 202963637 U CN202963637 U CN 202963637U
- Authority
- CN
- China
- Prior art keywords
- saw
- relief angle
- sawtooth
- auxiliary
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a saw blade which mainly resolves the problems that low cutting efficiency and prone fragmentation exist when an existing saw blade is used for cutting. The saw blade comprises a main saw teeth group of a first rear angle and an auxiliary saw teeth group of a second rear angle, wherein the main saw teeth group and the auxiliary saw teeth group are arranged on one side edge of a saw body in an alternative mode, the size of the first rear angle is smaller than that of the second rear angle, the main saw teeth group is composed of more than two main saw teeth in a side-by-side mode, the auxiliary saw teeth group is composed of more than two auxiliary saw teeth in a side-by-side mode, a notch is formed in the top of each of the main saw teeth, and a cutting blade used for cutting is arranged in the notch. The saw blade has the advantages of being high in cutting efficiency, and long in service life.
Description
Technical field
The utility model relates to a kind of saw blade.
Background technology
As everyone knows, saw blade is generally all made by high-carbon steel, improves hardness by the saw blade integral quenching, and the hardness of saw blade integral body is all the same like this, adopts large relief angle sawtooth can improve to greatest extent saw cutting speed.But the shortcoming of using large relief angle is that the total stress that acts on each sawtooth increases, and will cause cracked phenomenon frequently to occur, and thereby the life-span of saw blade is shortened dramatically, cause a large amount of shutdown or non-sawing man-hour.If use the relief angle of sawtooth less; cutting cracked frequency will reduce and improve blade life; and can reduce the downtime of changing according to bar, but use the shortcoming of little relief angle to be for same workpiece and to have comparing according to tooth of large relief angle, because the sawing ability descends; saw cutting speed greatly reduces as a result; and general high-speed steel is subject to cost and toughness reguirements, and sawtooth hardness is very limited, stressed excessive easily cause cracked; the defectives such as service life is short are difficult to be applicable to large-scale production application.
The utility model content
In order to overcome deficiency and the defective in background technology, the utility model provides a kind of saw blade, mainly solves existing saw blade and has when sawing that stock-removing efficiency is low, easy cracked problem.
The technical solution of the utility model is: a kind of saw blade, comprise saw body and sawtooth, it is characterized in that: described sawtooth comprises the head saw tooth group of the first relief angle and the auxiliary sawtooth group of the second relief angle, head saw tooth group and auxiliary sawtooth group are staggered on the edge of saw body one side, described the first relief angle is less than the second relief angle, described head saw tooth group is made of side by side the head saw tooth that is no less than two, described auxiliary sawtooth group is made of side by side the auxiliary sawtooth that is no less than two, described head saw tooth top section offers a breach, is provided with carbide chip on this gap position.
Described carbide chip welds mutually with the head saw tooth.
Described the first relief angle is 12-40 °.
Described the second relief angle is 30-70 °.
The hardness of described carbide chip is the HRC60-75 degree.
The beneficial effects of the utility model: owing to taking such scheme, saw blade of the present utility model has that stock-removing efficiency is high, the characteristics of long service life when sawing.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial schematic diagram of Fig. 1.
In figure, saw body 1, auxiliary sawtooth 2, head saw tooth 3, carbide chip 31, the first relief angle a, the second relief angle b.
The specific embodiment
The below is described further embodiment of the present utility model for accompanying drawing:
Shown in figure, this saw blade, comprise saw body 1 and sawtooth, 3 groups, the head saw tooth that described sawtooth comprises the first relief angle and 2 groups, the auxiliary sawtooth of the second relief angle, 3 groups, head saw tooth is staggered on the edge of saw body 1 one sides with 2 groups, auxiliary sawtooth, described the first relief angle is less than the second relief angle, 3 groups, described head saw tooth is made of side by side the head saw tooth 3 that is no less than two, 2 groups, described auxiliary sawtooth is made of side by side the auxiliary sawtooth 2 that is no less than two, described head saw tooth 3 tops offer a breach, are provided with carbide chip 31 on this gap position.Formed side by side by three head saw teeth as preferred head saw tooth group, auxiliary sawtooth group is made of side by side three auxiliary sawtooth, the described head saw tooth back of tooth and the auxiliary sawtooth back of tooth are carried section's place axis on the body with tooth respectively and are consisted of the first relief angle and the second relief angle, the sawtooth of staggered different relief angles is arranged, the saw cutting speed of raising to greatest extent that has namely kept large relief angle sawtooth, have again the low cracked frequency of little relief angle sawtooth and improve blade life, the blade that the head saw tooth adds, effectively increase the head saw tooth cutting power of little relief angle, had good stability, characteristics that stock-removing efficiency is high.
Be connected with the mode that head saw tooth 3 welds mutually as preferred described carbide chip 31, have easy for installation, characteristics firmly.
Be 12-40 ° as preferred described the first relief angle a, the head saw tooth back of tooth design of little relief angle has effectively increased the bearing capacity of head saw tooth, has the characteristics of good stability, long service life.
Described the second relief angle b is 30-70 °, and the auxiliary sawtooth back of tooth design of large relief angle effectively raises stock-removing efficiency.
The hardness of described carbide chip 31 is the HRC60-75 degree.
Embodiment should not be considered as the restriction to utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection domain of the present utility model.
Claims (5)
1. saw blade, comprise saw body and sawtooth, it is characterized in that: described sawtooth comprises the head saw tooth group of the first relief angle and the auxiliary sawtooth group of the second relief angle, head saw tooth group and auxiliary sawtooth group are staggered on the edge of saw body one side, described the first relief angle is less than the second relief angle, described head saw tooth group is made of side by side the head saw tooth that is no less than two, described auxiliary sawtooth group is made of side by side the auxiliary sawtooth that is no less than two, described head saw tooth top section offers a breach, is provided with carbide chip on this gap position.
2. saw blade according to claim 1, it is characterized in that: described carbide chip welds mutually with the head saw tooth.
3. saw blade according to claim 1, it is characterized in that: described the first relief angle is 12-40 °.
4. saw blade according to claim 1, it is characterized in that: described the second relief angle is 30-70 °.
5. saw blade according to claim 1, it is characterized in that: the hardness of described carbide chip is the HRC60-75 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220700503 CN202963637U (en) | 2012-12-17 | 2012-12-17 | Saw blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220700503 CN202963637U (en) | 2012-12-17 | 2012-12-17 | Saw blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202963637U true CN202963637U (en) | 2013-06-05 |
Family
ID=48504767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220700503 Expired - Fee Related CN202963637U (en) | 2012-12-17 | 2012-12-17 | Saw blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202963637U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10532412B2 (en) | 2016-09-23 | 2020-01-14 | Milwaukee Electric Tool Corporation | Hole saw arbor assembly |
| US10730119B2 (en) | 2017-01-06 | 2020-08-04 | Milwaukee Electric Tool Corporation | Hole saw |
| USD965653S1 (en) | 2017-08-15 | 2022-10-04 | Milwaukee Electric Tool Corporation | Hole saw |
-
2012
- 2012-12-17 CN CN 201220700503 patent/CN202963637U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10532412B2 (en) | 2016-09-23 | 2020-01-14 | Milwaukee Electric Tool Corporation | Hole saw arbor assembly |
| US11154940B2 (en) | 2016-09-23 | 2021-10-26 | Milwaukee Electric Tool Corporation | Hole saw arbor assembly |
| US10730119B2 (en) | 2017-01-06 | 2020-08-04 | Milwaukee Electric Tool Corporation | Hole saw |
| US11559840B2 (en) | 2017-01-06 | 2023-01-24 | Milwaukee Electric Tool Corporation | Hole saw |
| USD965653S1 (en) | 2017-08-15 | 2022-10-04 | Milwaukee Electric Tool Corporation | Hole saw |
| USD973733S1 (en) | 2017-08-15 | 2022-12-27 | Milwaukee Electric Tool Corporation | Hole saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141217 |
|
| EXPY | Termination of patent right or utility model |