CN202539691U - Saw blade structure of double-blade saw - Google Patents
Saw blade structure of double-blade saw Download PDFInfo
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- CN202539691U CN202539691U CN2012200873127U CN201220087312U CN202539691U CN 202539691 U CN202539691 U CN 202539691U CN 2012200873127 U CN2012200873127 U CN 2012200873127U CN 201220087312 U CN201220087312 U CN 201220087312U CN 202539691 U CN202539691 U CN 202539691U
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- saw
- saw blade
- blade
- circle
- bending part
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Abstract
The utility model discloses a saw blade structure of a double-blade saw. The saw blade structure comprises a first saw blade and a second saw blade which rotate on a same axial line and in opposite directions, and is characterized in that a tooth round root part of one of the saw blades is at least provided with three bending parts, a point connecting line of a point of ends of the bending parts far away the centre of the saw blade and a point of ends of the bending parts near the centre of the saw blade does not pass through the centre. The saw blade structure of the double-blade saw is provided with the bending parts which play a role of separating the first saw blade and the second saw blade in the working of the double-blade saw; and simultaneously, the scrap discharging and heat radiating effects of the saw blades are added.
Description
Technical field
The utility model relates to a kind of biplate saw, relates in particular to a kind of saw-blade structure of biplate saw.
Background technology
Biplate saw is a kind of hand held cutting tool that on same axis, is equipped with the opposite saw blade of two direction of rotation.Because two saw blade direction of rotation are opposite, the recoil strength when making cutting work reduces greatly, has improved the efficient of cutting and the security of use.Select different saw blades for use, the biplate saw can be used for the cutting of unlike materials such as timber, metal, marble, ceramic tile.
Because the special operating characteristic of biplate saw, it requires must have between two saw blades isolation structure that the cutter head of two saw blades can not be interfered with each other and be close to as much as possible.Method commonly used is processing one annulus convex tendon or the several centrosymmetric boss of punching out on a slice saw blade, the convex tendon of saw blade (or boss) thus face and the friction of another saw blade reach the purpose of two saw blades isolation.Because annular convex rib is distributed in the circumferential of saw blade, therefore, the heat that saw blade produces in cutting process is blocked between two saw blades, can not discharge the friction that increases between saw blade thereby tiny smear metal simultaneously possibly get in the ring.Two saw blades for a long time under the environment of high heat work cause problems such as saw blade distortion easily, cause the damage of saw blade.
Summary of the invention
The utility model provides a kind of saw-blade structure of biplate saw to deficiency of the prior art, and the saw-blade structure of this biplate saw not only makes two saw blades isolate, and chip removal is convenient, has good performance of heat dissipation.
In order to solve the problems of the technologies described above, the utility model is able to solve through following technical proposals:
A kind of saw-blade structure of biplate saw; Be included in first saw blade in the opposite direction and second saw blade that rotate on the same axis; It is characterized in that; Wherein the tooth of a slice saw blade circle root is provided with three bending parts at least, and the some line in the point in the saw blade far away center of circle, said bending part end and the nearly saw blade center of circle is without the center of circle.
In the technique scheme, the point in line and the bending part end saw blade far away center of circle in the point in the nearly saw blade center of circle, said bending part end and the saw blade center of circle is 10～70 ° with the angle theta of the some line in the nearly saw blade center of circle.
In the technique scheme, the height H of said bending part is 0.1～0.5mm.
In the technique scheme, the junction camber of said bending part both sides and saw blade.
Beneficial effect: the utility model compared with prior art; Have following beneficial effect: the utility model is provided with bending part; This bending part has played the effect of isolating first saw blade and second saw blade in the work of biplate saw, increased the effect of saw blade chip removal, heat radiation simultaneously again.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of first saw blade.
Fig. 3 is the structural representation of second saw blade.
Fig. 4 is an I place enlarged drawing among Fig. 3.
Fig. 5 is the cutaway view of A-A after amplifying among Fig. 3.
Fig. 6 is the enlarged drawing that first saw blade and second saw blade cooperate.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail: see Fig. 1～Fig. 6; A kind of saw-blade structure of biplate saw; Be included in first saw blade 1 in the opposite direction and second saw blade 3 that rotate on the same axis; The tooth root portion of said second saw blade 3 is provided with the bending part 5 more than three or three near a sidewall of first saw blade 1, and they are symmetrically distributed with the center of second saw blade 3.
As a specific embodiment of the utility model, said bending part 5 is provided with 4.It is understandable that, also can said bending part 5 be arranged on the sidewall of said first saw blade 1 near second saw blade 3.
Said bending part 5 is near the root circle place of the sawtooth of second saw blade 3, and the angle theta of the some line 200 in the point in the line 100 in the point in the nearly saw blade center of circle, said bending part end and the saw blade center of circle and the saw blade far away center of circle, bending part end and the nearly saw blade center of circle is the center of circle of the central axis of 10～70 ° of said bending parts 5 without said saw blade.In the saw blade rotary course; Said bending part 5 not only plays the effect that separates first saw blade 1 and second saw blade 3; Bending part 5 can be discharged wood chip and hot blast, thereby play good chip removal and thermolysis because the rotation of the high speed of saw blade produces the centrifugation blade effect simultaneously.To be bending part 5 played the effect of isolating first saw blade 1 and second saw blade 3 in the work of biplate saw, the while has increased the effect of saw blade chip removal, heat radiation again.
Claims (4)
1. the saw-blade structure of biplate saw; Be included in first saw blade (1) in the opposite direction and second saw blade (3) that rotate on the same axis; It is characterized in that; Wherein the tooth of a slice saw blade circle root is provided with three bending parts (5) at least, and the some line in the point in the saw blade far away center of circle, said bending part end and the nearly saw blade center of circle is without the center of circle.
2. the saw-blade structure of biplate saw as claimed in claim 1; It is characterized in that the point in line (100) and the bending part end saw blade far away center of circle in the point in the nearly saw blade center of circle, said bending part end and the saw blade center of circle is 10～70 ° with the angle theta of the some line (200) in the nearly saw blade center of circle.
3. according to claim 1 or claim 2 the saw-blade structure of biplate saw is characterized in that the height H of said bending part (5) is 0.1～0.5mm.
4. according to claim 1 or claim 2 the saw-blade structure of biplate saw is characterized in that junction (7) camber of said bending part (5) both sides and saw blade.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200873127U CN202539691U (en) | 2012-03-09 | 2012-03-09 | Saw blade structure of double-blade saw |
| PCT/CN2012/079127 WO2013131350A1 (en) | 2012-03-09 | 2012-07-25 | Saw blade strcture of dual-blade saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200873127U CN202539691U (en) | 2012-03-09 | 2012-03-09 | Saw blade structure of double-blade saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202539691U true CN202539691U (en) | 2012-11-21 |
Family
ID=47160380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200873127U Expired - Fee Related CN202539691U (en) | 2012-03-09 | 2012-03-09 | Saw blade structure of double-blade saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202539691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115971373A (en) * | 2023-03-22 | 2023-04-18 | 平山县交通运输局地方道路管理站 | Reinforcing bar cuts equipment for highway construction |
-
2012
- 2012-03-09 CN CN2012200873127U patent/CN202539691U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115971373A (en) * | 2023-03-22 | 2023-04-18 | 平山县交通运输局地方道路管理站 | Reinforcing bar cuts equipment for highway construction |
| CN115971373B (en) * | 2023-03-22 | 2023-05-12 | 平山县交通运输局地方道路管理站 | Reinforcing bar cuts equipment for highway construction |
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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: 20121121 Termination date: 20180309 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |