CN103331487A - Hard alloy saw chain - Google Patents
Hard alloy saw chain Download PDFInfo
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- CN103331487A CN103331487A CN201310298233XA CN201310298233A CN103331487A CN 103331487 A CN103331487 A CN 103331487A CN 201310298233X A CN201310298233X A CN 201310298233XA CN 201310298233 A CN201310298233 A CN 201310298233A CN 103331487 A CN103331487 A CN 103331487A
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- metal insert
- tooth
- hard
- insert piece
- carbide alloy
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Abstract
The invention relates to a hard alloy saw chain of a chain saw, wherein a welding surface of a hard alloy tooth block and a cutting tooth is made into a cylindrical surface, and the arc radius of the cylindrical surface is 2-5 mm, preferably 2.5-4 mm. The tooth block is shaped like a quadrangular frustum pyramid, and the height of the inner side surface is smaller than that of the outer side surface. The flank of tooth piece is perpendicular to the indent, and interior concave angle 1 ~ 3. The intersection of the tooth crest surface and the tooth flank surface of the tooth block is made into a fillet, the tooth tip becomes a section of circular arc line, and the circular arc radius of the tooth tip is 0.2-0.8 mm, and the best is 0.3-0.4 mm. According to the invention, the hard alloy tooth block and the cutting tooth are welded together by adopting a butt welding method, local high-temperature tempering is carried out after the tooth block is welded, the joint strength of a welding seam is improved by 4 times compared with that of brazing, the welding seam is very firm, and the tooth can not be removed during sawing.
Description
Technical field
The present invention relates to chain saw, relate in particular to a kind of carbide alloy saw chain of chain saw.
Background technology
Chain saw mainly is made up of prime mover, guide plate, saw chain and sprocket wheel etc., and guide plate is anchored on the housing of prime mover, and saw chain rotation is moving around guide plate and the transhipment of chain crop rotation rotation.Traditional saw chain is made with structural alloy steel or tool steel, and its Cutting teeth chair blade is an integral body, and land hardness is not too high, can only sawing timber, not too hard material such as ice cube.The carbide alloy saw chain is a kind of saw chain that is welded with carbide alloy at the front end of the cutting teeth of Cutting teeth chair blade, and the hardness of carbide alloy is very high, but carbide alloy saw chain sawing brick, non-ferrous metal, mild steel, contains hard material such as nail timber etc.The hard-metal insert piece of existing carbide alloy saw chain be shaped as sheet or strip, the solder side that welds with cutting teeth is 2-3 plane of intersecting, this profile of tooth welding back tooth piece splits easily or has very big welding interior stress, thereby the hard-metal insert piece comes off easily during sawing.The hard-metal insert piece of existing carbide alloy saw chain is soldered to the cutting teeth front end with braze welding method, the weld strength of solder brazing is lower, the sawing resistance that is difficult to bear sawing brick, non-ferrous metal, mild steel, produces when containing hard materials such as following closely timber, weld seam ftractures easily during sawing, and use very short time hard-metal insert piece just comes off gradually.
Summary of the invention
Technical problem to be solved by this invention just provides that block-shaped more excellent, the weld seam trend of a kind of hard-metal insert is more reasonable, weld strength is high, be difficult for falling the carbide alloy saw chain of tooth, long service life during sawing.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: the solder side of hard-metal insert piece of the present invention and cutting teeth welding is made the face of cylinder, be the part on the face of cylinder, it is minimum that this structure can make the welding tension that is subjected on the tooth piece drop to, thereby avoid the weld crack of tooth piece.The arc radius on the face of cylinder is 2～5mm, best 2.5～4mm.For reducing the sawing resistance, tooth is block-shaped makes approximate truncated rectangular pyramids, and the medial surface height is less than the lateral surface height; The flank of tooth piece vertically concaves, 1～3 ° of interior re-entrant angle.For improving the intensity of crown, fillet is made in the crest top land of tooth piece and flank intersection, and crown becomes one section circular arc line, and tip circular-arc radius is 0.2～0.8mm, best 0.3～0.4mm.
The present invention adopts the method for butt welding that hard-metal insert piece and cutting teeth are welded together, and the strength of connection of weld seam improves 4 times than solder brazing, and is very firm, can sealing-off not fall tooth during sawing.Carry out localized hyperthermia's tempering after the tooth block welding, eliminate the welding fragility of weld seam back cutting teeth body, the brittle fracture of cutting teeth body in the time of can preventing sawing.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is further described:
Fig. 1 represents the front view of a segment standard tooth pitch carbide alloy saw chain;
Fig. 2 represents the vertical view of a segment standard tooth pitch carbide alloy saw chain;
Fig. 3 represents the front view of one section solid matter tooth pitch carbide alloy saw chain;
Fig. 4 represents the vertical view of one section solid matter tooth pitch carbide alloy saw chain;
Fig. 5 represents the front view of the right cut toothed chain sheet of carbide alloy saw chain;
Fig. 6 represents the vertical view of the right cut toothed chain sheet of carbide alloy saw chain;
Fig. 7 represents the left side view of the right cut toothed chain sheet of carbide alloy saw chain;
Fig. 8 represents the front view of the left cut toothed chain sheet of carbide alloy saw chain;
Fig. 9 represents the vertical view of the left cut toothed chain sheet of carbide alloy saw chain;
Figure 10 represents the left side view of the left cut toothed chain sheet of carbide alloy saw chain;
Figure 11 represents the left side view of left carbide button piece;
Figure 12 represents the front view of left carbide button piece;
Figure 13 represents the vertical view of left carbide button piece;
Figure 14 represents the rearview of left carbide button piece.
Among the figure: 1, left cut toothed chain sheet; 2, right cut toothed chain sheet; 3, chain rivet; 4, driver blade; 5, brace; 6, left hard-metal insert piece; 7, right hard-metal insert piece; 8, cutting teeth; 9, limit material tooth; 10, riveted holes; 11, weld seam; 12, tooth piece medial surface height; 13, tooth piece lateral surface height; R1, tooth piece face of cylinder arc radius; R2, tooth piece tip circular-arc radius; α, the vertical interior re-entrant angle of tooth piece flank.
The specific embodiment
Among Fig. 1-Fig. 4, the carbide alloy saw chain is made up of left cut toothed chain sheet 1, right cut toothed chain sheet 2, chain rivet 3, driver blade 4 and brace 5, full-height tooth is 4 pitches apart from the tooth pitch of carbide alloy saw chain, the tooth pitch of solid matter tooth pitch carbide alloy saw chain is 2 pitches, be welded with left hard-metal insert piece 6 on the left cut toothed chain sheet 1, be welded with right hard-metal insert piece 7 on the right cut toothed chain sheet 2.Left cut toothed chain sheet 1 is symmetrical fully with structure and the shape of right cut toothed chain sheet 2.
Among Fig. 5-Figure 14, left cut toothed chain sheet 1 and right cut toothed chain sheet 2 all are made up of cutting teeth 8, limit material tooth 9, connecting portion and two riveted holes 10.Left side hard-metal insert piece 6 and right hard-metal insert piece 7 are made the face of cylinder with the solder side of cutting teeth 8 welding, it is the part on the face of cylinder, it is minimum that this structure can make the welding tension that is subjected on left hard-metal insert piece 6 and the right hard-metal insert piece 7 drop to, thereby avoid the weld crack of left hard-metal insert piece 6 and right hard-metal insert piece 7.The arc radius R1 on the face of cylinder is 2～5mm, and best arc radius R1 is 2.5～4mm.For reducing the sawing resistance, the shape of left hard-metal insert piece 6 and right hard-metal insert piece 7 is made approximate truncated rectangular pyramids, and tooth piece medial surface height 12 is less than tooth piece lateral surface height 13; The flank of left side hard-metal insert piece 6 and right hard-metal insert piece 7 vertically concaves, and re-entrant angle α was 1～3 ° in tooth piece flank was vertical.For improving the intensity of crown, fillet is made in crest top land and the flank intersection of left side hard-metal insert piece 6 and right hard-metal insert piece 7, crown becomes one section circular arc sword line, and tooth piece tip circular-arc radius R2 is 0.2～0.8mm, and optimal teeth piece tip circular-arc radius R2 is 0.3～0.4mm.
The present invention adopts the method for butt welding that left hard-metal insert piece 6 and right hard-metal insert piece 7 are welded together with cutting teeth 8, and the strength of connection of weld seam 11 improves 4 times than solder brazing, and is very firm, can sealing-off not fall tooth during sawing.Carry out localized hyperthermia's tempering after left side hard- metal insert piece 6 and 7 welding of right hard-metal insert piece, eliminate the welding fragility of weld seam 11 back cutting teeths 8 bodies, the brittle fracture of cutting teeth body 8 in the time of can preventing sawing.
Claims (10)
1. carbide alloy saw chain, formed by left cut toothed chain sheet 1, right cut toothed chain sheet 2, chain rivet 3, driver blade 4 and brace 5, be welded with left hard-metal insert piece 6 on the left cut toothed chain sheet 1, be welded with right hard-metal insert piece 7 on the right cut toothed chain sheet 2, it is characterized in that: described left hard-metal insert piece 6 and right hard-metal insert piece 7 are made the face of cylinder with the solder side of cutting teeth 8 welding, are the parts on the face of cylinder.
2. a kind of carbide alloy saw chain according to claim 1, it is characterized in that: the arc radius R1 on the face of cylinder is 2～5mm.
3. a kind of carbide alloy saw chain according to claim 1, it is characterized in that: the arc radius R1 on the face of cylinder is 2.5～4mm.
4. a kind of carbide alloy saw chain according to claim 1, it is characterized in that: the shape of left hard-metal insert piece 6 and right hard-metal insert piece 7 is made approximate truncated rectangular pyramids, and tooth piece medial surface height 12 is less than tooth piece lateral surface height 13.
5. according to claim 1 or the described a kind of carbide alloy saw chain of claim 4, it is characterized in that: the flank of left hard-metal insert piece 6 and right hard-metal insert piece 7 vertically concaves, and re-entrant angle α was 1～3 ° in tooth piece flank was vertical.
6. a kind of carbide alloy saw chain according to claim 1, it is characterized in that: fillet is made in crest top land and the flank intersection of left hard-metal insert piece 6 and right hard-metal insert piece 7, and crown becomes one section circular arc sword line.
7. according to claim 1 or the described a kind of carbide alloy saw chain of claim 6, it is characterized in that: tooth piece tip circular-arc radius R2 is 0.2～0.8mm.
8. according to claim 1 or the described a kind of carbide alloy saw chain of claim 6, it is characterized in that: tooth piece tip circular-arc radius R2 is 0.3～0.4mm.
9. a kind of carbide alloy saw chain according to claim 1 is characterized in that: adopt the method for butt welding that left hard-metal insert piece 6 and right hard-metal insert piece 7 are welded together with cutting teeth 8.
10. according to claim 1 or the described a kind of carbide alloy saw chain of claim 9, it is characterized in that: carry out localized hyperthermia's tempering after left hard-metal insert piece 6 and 7 welding of right hard-metal insert piece, eliminate the welding fragility of weld seam 11 back cutting teeths 8 bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310298233.XA CN103331487B (en) | 2013-07-17 | 2013-07-17 | Hard alloy saw chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310298233.XA CN103331487B (en) | 2013-07-17 | 2013-07-17 | Hard alloy saw chain |
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| CN103331487A true CN103331487A (en) | 2013-10-02 |
| CN103331487B CN103331487B (en) | 2016-05-11 |
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| CN201310298233.XA Active CN103331487B (en) | 2013-07-17 | 2013-07-17 | Hard alloy saw chain |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552134A (en) * | 2013-11-07 | 2014-02-05 | 缙云县鼎盛工刃具制造厂 | Hard alloy tooth top square tooth type saw chain |
| CN104708676A (en) * | 2013-12-14 | 2015-06-17 | 安德烈·斯蒂尔股份两合公司 | Cutting tooth for a saw chain |
| CN106465521A (en) * | 2016-08-29 | 2017-02-22 | 深圳市窗科技有限责任公司 | Lamp control method and system, illumination control device, and server |
| CN106945128A (en) * | 2017-03-28 | 2017-07-14 | 张南征 | The cutting tip and saw chain of saw chain |
| CN112453573A (en) * | 2020-11-09 | 2021-03-09 | 永康市南征工贸股份有限公司 | A proofreading frock for chain saw production |
Citations (7)
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| DE3241183A1 (en) * | 1981-11-09 | 1983-05-19 | Omark Industries, Inc.,, 97222 Portland, Oreg. | SAW CHAIN AND METHOD FOR THEIR PRODUCTION |
| WO2006118618A2 (en) * | 2005-04-29 | 2006-11-09 | Unifire Power Blowers, Inc. | Saw chains having hardened cutting elements and methods for production thereof |
| CN200967106Y (en) * | 2006-11-16 | 2007-10-31 | 金华辉煌三联工具实业有限公司 | Oil storage saw chain |
| CN201483586U (en) * | 2009-04-03 | 2010-05-26 | 郑元聪 | Saw chain |
| CN101850566A (en) * | 2009-04-03 | 2010-10-06 | 郑元聪 | Saw chain |
| CN202910942U (en) * | 2012-08-01 | 2013-05-01 | 傅文燕 | Hard alloy saw chain |
| CN203390304U (en) * | 2013-07-17 | 2014-01-15 | 缙云县鼎盛工刃具制造厂 | Hard alloy saw chain |
-
2013
- 2013-07-17 CN CN201310298233.XA patent/CN103331487B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3241183A1 (en) * | 1981-11-09 | 1983-05-19 | Omark Industries, Inc.,, 97222 Portland, Oreg. | SAW CHAIN AND METHOD FOR THEIR PRODUCTION |
| WO2006118618A2 (en) * | 2005-04-29 | 2006-11-09 | Unifire Power Blowers, Inc. | Saw chains having hardened cutting elements and methods for production thereof |
| CN200967106Y (en) * | 2006-11-16 | 2007-10-31 | 金华辉煌三联工具实业有限公司 | Oil storage saw chain |
| CN201483586U (en) * | 2009-04-03 | 2010-05-26 | 郑元聪 | Saw chain |
| CN101850566A (en) * | 2009-04-03 | 2010-10-06 | 郑元聪 | Saw chain |
| CN202910942U (en) * | 2012-08-01 | 2013-05-01 | 傅文燕 | Hard alloy saw chain |
| CN203390304U (en) * | 2013-07-17 | 2014-01-15 | 缙云县鼎盛工刃具制造厂 | Hard alloy saw chain |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552134A (en) * | 2013-11-07 | 2014-02-05 | 缙云县鼎盛工刃具制造厂 | Hard alloy tooth top square tooth type saw chain |
| CN103552134B (en) * | 2013-11-07 | 2015-09-23 | 缙云县鼎盛工刃具制造厂 | Hard alloy tooth top square tooth type saw chain |
| CN104708676A (en) * | 2013-12-14 | 2015-06-17 | 安德烈·斯蒂尔股份两合公司 | Cutting tooth for a saw chain |
| CN104708676B (en) * | 2013-12-14 | 2019-11-15 | 安德烈·斯蒂尔股份两合公司 | Cutting for saw chain |
| CN106465521A (en) * | 2016-08-29 | 2017-02-22 | 深圳市窗科技有限责任公司 | Lamp control method and system, illumination control device, and server |
| CN106465521B (en) * | 2016-08-29 | 2019-02-22 | 深圳市一窗科技有限责任公司 | A kind of method for controlling lamp and system, illumination control apparatus, server |
| CN106945128A (en) * | 2017-03-28 | 2017-07-14 | 张南征 | The cutting tip and saw chain of saw chain |
| CN106945128B (en) * | 2017-03-28 | 2019-12-24 | 张南征 | Cutting blade for a saw chain and saw chain |
| CN112453573A (en) * | 2020-11-09 | 2021-03-09 | 永康市南征工贸股份有限公司 | A proofreading frock for chain saw production |
| CN112453573B (en) * | 2020-11-09 | 2021-11-05 | 永康市南征工贸股份有限公司 | A proofreading frock for chain saw production |
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| Publication number | Publication date |
|---|---|
| CN103331487B (en) | 2016-05-11 |
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Address after: 321404 Hu Zhen Zhen Shi Niu Lu, Jinyun County, Lishui City, Zhejiang Province Patentee after: Jinyun Dingsheng tool manufacturing factory (general partnership) Address before: 321404 Hu Zhen Zhen Shi Niu Lu, Jinyun County, Lishui City, Zhejiang Province Patentee before: JINYUN DINGSHENGGONG CUTTER MANUFACTORY |