CN103862102B - Double; two saw blade electrotrephines - Google Patents
Double; two saw blade electrotrephines Download PDFInfo
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- CN103862102B CN103862102B CN201210533615.1A CN201210533615A CN103862102B CN 103862102 B CN103862102 B CN 103862102B CN 201210533615 A CN201210533615 A CN 201210533615A CN 103862102 B CN103862102 B CN 103862102B
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- saw blade
- protuberance
- gear
- electrotrephine
- interior
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Abstract
<b>the present invention relates to double, two saw blade electrotrephine, it includes motor, the first gear and the second gear that rotate is driven by motor, the first power transmission shaft and second driving shaft that are connected and are coaxially disposed is fixed respectively with the first gear and the second gear, be separately mounted on the first power transmission shaft and second driving shaft and centrage overlap interior saw blade and outer saw blade, and it is pressed on the pressing plate outside outer saw blade, it is formed with gap between interior saw blade and outer saw blade, facing out of pressing plate is formed with protuberance in the one side of saw blade, outer saw blade offers breach, described protuberance is conflicted through breach with interior saw blade, wherein, the height of protuberance is more than the thickness of outer saw blade, thus forming the size gap equal to protuberance height with the difference of the thickness of outer saw blade between interior saw blade and outer saw blade。Double; two saw blade electrotrephine manufacturing process according to the present invention are simple, less costly。</b>
Description
Technical field
The present invention relates to a kind of double; two saw blade electrotrephine。
Background technology
Existing pair of saw blade electrotrephine, when saw blade moves for preventing bump contact between cutting element from producing high temperature and being provided with escapement between two saw blades。Pair of saw blades disclosed in CN101557911A as open in Chinese invention patent, its sawtooth end be provided with one ring week convex tendon make to be formed between two saw blades certain gap, it is ensured that the friction between two saw blades is little contact area, reduces fricative temperature。But, set ring week convex tendon at sawtooth end and improve the difficulty of blades machining technique undoubtedly, reduce the qualification rate of saw blade finished product, make saw blade cost and use the cost of annular saw of this saw blade to raise。
Summary of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, it is provided that the electrotrephine of a kind of improvement。
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that:
A kind of double, two saw blade electrotrephine, it includes motor, the first gear and the second gear that rotate is driven by motor, the first power transmission shaft and second driving shaft that are connected and are coaxially disposed is fixed respectively with the first gear and the second gear, be separately mounted on the first power transmission shaft and second driving shaft and centrage overlap interior saw blade and outer saw blade, and it is pressed on the pressing plate outside outer saw blade, it is formed with gap between interior saw blade and outer saw blade, facing out of pressing plate is formed with protuberance in the one side of saw blade, outer saw blade offers breach, described protuberance is conflicted through breach with interior saw blade, wherein, the height of protuberance is more than the thickness of outer saw blade, thus forming the size gap equal to protuberance height with the difference of the thickness of outer saw blade between interior saw blade and outer saw blade。
According to a further embodiment of the present invention: circumferentially extending along pressing plate of described protuberance。
In a detailed description of the invention, protuberance can be have multiple, and multiple protuberance is uniformly distributed along the circumference of pressing plate。
Further, the first described power transmission shaft is positioned at the periphery of second driving shaft。Second driving shaft includes central shaft and axle sleeve, and outer saw blade is arranged on the axle sleeve of second driving shaft。Pressing plate is by bolt presses saw blade outside。
Preferably, described first gear and the second gear reversely rotate, and interior saw blade and outer saw blade also reversely rotate。
Due to the employing of technique scheme, the present invention compared with prior art has the advantage that
Double; two saw blade electrotrephines according to the present invention, gap between inside and outside saw blade is not by setting bulge loop offer with saw blade basis, but by setting on pressing plate, protuberance and outer saw blade set breach formation, enormously simplify the processing technique of saw blade so that the cost of saw blade and the cost of electrotrephine decline。
Accompanying drawing explanation
Below in conjunction with accompanying drawing and specific embodiment, the present invention will be further described in detail。
Fig. 1 is the main cross-sectional schematic of the double; two saw blade electrotrephines according to the present invention；
Fig. 2 is a schematic diagram of the pressing plate according to the present invention；
Fig. 3 be Fig. 2 along A-A to cross-sectional schematic；
Fig. 4 is a schematic diagram of the outer saw blade according to the present invention；
Fig. 5 be Fig. 4 along B-B to cross-sectional schematic；
Fig. 6 is the close-up schematic view of interior saw blade and outer saw blade；
Wherein: 1, motor；10, line shaft；2, the first gear；3, the second gear；4, the first power transmission shaft；5, second driving shaft；50, central shaft；51, axle sleeve；6, interior saw blade；7, outer saw blade；70, breach；8, pressing plate；80, protuberance；9, bolt；S, gap。
Detailed description of the invention
As shown in Figures 1 to 6, include motor 1 according to double; two saw blade electrotrephines of the present embodiment, made the first gear 2 of reversely rotating by line shaft 10 transmission of motor 1 and the second gear 3 and affixed the first power transmission shaft 4 of the first gear 2 and the affixed second driving shaft 5 of the second gear 3, interior saw blade 6, outer saw blade 7, pressing plate 8 and bolt 9。First power transmission shaft 4 and second driving shaft 5 concentric are arranged, and the first power transmission shaft 4 is positioned at the periphery of second driving shaft 5。Second driving shaft 5 includes central shaft 50 and axle sleeve 51。Interior saw blade 6 is arranged on the first power transmission shaft 4, and outer saw blade 7 is arranged on the axle sleeve 51 of second driving shaft 5, and pressing plate 8 is pressed on outside outer saw blade 7 by bolt 9。When electrotrephine operates, the first gear 2 and the second gear 3 reversely rotate, thus interior saw blade 6 and outer saw blade 7 also reversely rotate。
Unlike the prior art, the pressing plate 8 of the present embodiment is formed with circumferentially extending three protuberance 80 along pressing plate 8 in the one side facing out saw blade 7, meanwhile, outer saw blade 7 offers breach 70 at the position of corresponding these three protuberance 80, each protuberance 80 is corresponding conflicts through breach 70 and the plane with interior saw blade 6, makes the position of interior saw blade 6 fix。The height of protuberance 80 is designed to the thickness more than outer saw blade 7, so, the part stretching out breach 70 of protuberance 80 makes to define a gap S between interior saw blade 6 and outer saw blade 7, and the size of this gap S is equal to the difference of the height of protuberance 80 and the thickness of outer saw blade 7。The existence of this gap S ensure that the friction between two saw blades is little contact area, reduces fricative temperature。
Relatively the present invention is known with prior art, gap between the inside and outside saw blade of the present invention is not by setting bulge loop offer with saw blade basis, but by setting on pressing plate, protuberance and outer saw blade set breach formation, so, the processing technique of saw blade is greatly simplified, so that the cost of the cost of saw blade and electrotrephine declines。
The purpose of above-described embodiment is in that to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this。All equivalences made according to spirit of the invention change or modify, and all should be encompassed within protection scope of the present invention。
Claims (7)
1. a double, two saw blade electrotrephine, including motor (1), the first gear (2) and the second gear (3) that rotate is driven by described motor (1), respectively with fixing the first power transmission shaft (4) being connected and being coaxially disposed of described first gear (2) and the second gear (3) and second driving shaft (5), it is separately mounted to described first power transmission shaft (4) and second driving shaft (5) be upper and centrage overlaps interior saw blade (6) and outer saw blade (7), and it is pressed on the pressing plate (8) in described outer saw blade (7) outside, gap (S) it is formed with between described interior saw blade (6) and outer saw blade (7), it is characterized in that: described pressing plate (8) in the one side of described outer saw blade (7), be formed with protuberance (80), described outer saw blade (7) offers breach (70), described protuberance (80) is conflicted through described breach (70) with described interior saw blade (6), wherein, the height of described protuberance (80) is more than the thickness of described outer saw blade (7), thus forming the size gap (S) equal to protuberance (80) height with the difference of the thickness of outer saw blade (7) between interior saw blade (6) and outer saw blade (7)。
2. according to claim 1 pair of saw blade electrotrephine, it is characterised in that: described protuberance (80) is circumferentially extending along described pressing plate (8)。
3. according to claim 1 and 2 pair of saw blade electrotrephine, it is characterised in that: described protuberance (80) has multiple, and multiple described protuberance (80) is uniformly distributed along the circumference of described pressing plate (8)。
4. according to claim 1 pair of saw blade electrotrephine, it is characterised in that: described the first power transmission shaft (4) is positioned at the periphery of described second driving shaft (5)。
5. according to claim 4 pair of saw blade electrotrephine, it is characterised in that: described second driving shaft (5) includes central shaft (50) and axle sleeve (51), and described outer saw blade (7) is arranged on the axle sleeve (51) of second driving shaft (5)。
6. according to claim 1 pair of saw blade electrotrephine, it is characterised in that: described pressing plate (8) is pressed on described outer saw blade (7) by bolt (9)。
7. according to claim 1 pair of saw blade electrotrephine, it is characterised in that: described first gear (2) and the second gear (3) reversely rotate, and described interior saw blade (6) and described outer saw blade (7) reversely rotate。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210533615.1A CN103862102B (en) | 2012-12-11 | 2012-12-11 | Double; two saw blade electrotrephines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210533615.1A CN103862102B (en) | 2012-12-11 | 2012-12-11 | Double; two saw blade electrotrephines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103862102A CN103862102A (en) | 2014-06-18 |
| CN103862102B true CN103862102B (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210533615.1A Active CN103862102B (en) | 2012-12-11 | 2012-12-11 | Double; two saw blade electrotrephines |
Country Status (1)
| Country | Link |
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| CN (1) | CN103862102B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116919A (en) * | 2007-05-08 | 2008-02-06 | 郭一文 | Sawblades in couple |
| CN201483082U (en) * | 2009-09-08 | 2010-05-26 | 黄亮 | Double-cutter anisotropic cutting machine |
| GB2466999A (en) * | 2009-01-19 | 2010-07-21 | Chung-Chi Chen | Saw with first and second blades |
| CN102211230A (en) * | 2010-04-06 | 2011-10-12 | 陈重光 | Saw bit capable of bidirectionally sawing |
| CN202271023U (en) * | 2011-09-16 | 2012-06-13 | 胡继宁 | Saw blade group circular saw machine and transmission case thereof |
| CN102513604A (en) * | 2011-11-30 | 2012-06-27 | 高金云 | Driving device of double-blade metal cutting machine |
| CN202377608U (en) * | 2011-11-10 | 2012-08-15 | 宁波德丰动力科技有限公司 | Concentric reversion dual-working-head power drive device and axial positioning structure thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29804002U1 (en) * | 1998-03-06 | 1999-07-08 | Muennekehoff | Drive device for a double separator |
-
2012
- 2012-12-11 CN CN201210533615.1A patent/CN103862102B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116919A (en) * | 2007-05-08 | 2008-02-06 | 郭一文 | Sawblades in couple |
| GB2466999A (en) * | 2009-01-19 | 2010-07-21 | Chung-Chi Chen | Saw with first and second blades |
| CN201483082U (en) * | 2009-09-08 | 2010-05-26 | 黄亮 | Double-cutter anisotropic cutting machine |
| CN102211230A (en) * | 2010-04-06 | 2011-10-12 | 陈重光 | Saw bit capable of bidirectionally sawing |
| CN202271023U (en) * | 2011-09-16 | 2012-06-13 | 胡继宁 | Saw blade group circular saw machine and transmission case thereof |
| CN202377608U (en) * | 2011-11-10 | 2012-08-15 | 宁波德丰动力科技有限公司 | Concentric reversion dual-working-head power drive device and axial positioning structure thereof |
| CN102513604A (en) * | 2011-11-30 | 2012-06-27 | 高金云 | Driving device of double-blade metal cutting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103862102A (en) | 2014-06-18 |
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