CN102275013A - Pneumatic reciprocating saw - Google Patents
Pneumatic reciprocating saw Download PDFInfo
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- CN102275013A CN102275013A CN2011102333231A CN201110233323A CN102275013A CN 102275013 A CN102275013 A CN 102275013A CN 2011102333231 A CN2011102333231 A CN 2011102333231A CN 201110233323 A CN201110233323 A CN 201110233323A CN 102275013 A CN102275013 A CN 102275013A
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Abstract
The invention discloses a pneumatic reciprocating saw which aims to provide the pneumatic reciprocating saw which has a simple structure, a small quantity of moving parts, a small volume and light weight and is convenient to operate. The pneumatic reciprocating saw comprises a handle (1) with an air nozzle and a button switch, an air flow action barrel (4) arranged in a barrel body of an outer shell (5), and an end cover (2) connected with the air flow action barrel, wherein an air flow pressurization cover (16) for pushing a pneumatic rod (6) to move downward under the action of an air flow is arranged inside the end cover; axial air flow holes (17) which are uniformly distributed on a circumferential ring surface and symmetrically inclined towards a central axial line are formed in the air flow pressurization cover; by the axial air flow holes, the air flow pressurization cover is rotated under the action of the air flow, and the axial air flow holes are staggered or communicated with air flow channels which are formed on the end face of the air flow action barrel and have the same direction, the same shape and the same number as the axial air flow holes; and when the axial air flow holes are communicated with the air flow channels, the air flow slantways passes through the air flow channels to reach an annular slot at the bottom of the air flow action barrel along an axial direction to form an upward pressurization air flow which reversely pushes the pneumatic rod.
Description
Technical field
The present invention relates to a kind of cutting element of hand-held pneumatic sawing.
Background technology
Prior art is used to cut electronic cast-cutting saw soft, hard material circular saw, the reciprocating motor cast-cutting saw, and in general, electronic cast-cutting saw all is made up of saw blade rotating shaft of motor, saw blade or circular saw bit, outer cover bearing outside etc. usually.The reciprocating motor cast-cutting saw adopts common toggle, and it is that rotation conversion with crank turns to the reciprocating motion of reciprocating lever on straight line.Bearing and gear wheel constitute crank, and an end of connecting rod is connected with reciprocating lever by universal joint, the rotation of driven by motor gear wheel, and it is reciprocating to drive reciprocating lever by connecting rod.For balanced action, be equipped with a balance weight, it is simultaneously reciprocating that it drives reciprocating lever by eccentric wheel.The clamp mechanism of saw blade is to clamp and be fixed on the head of reciprocating lever by pressing plate and hold-down screw.The end face of reciprocating lever has one saw blade is hooked, and prevents the alignment pin that saw blade is deviate from.The normal problem that occurs of electric reciprocating saw has: high-voltage breakdown, and wiping iron burns machine, the machine seismic noise is big, and spark is big, and switch is easily stuck, and bullet does not go out, and locking press button easily lost efficacy, the leakage of oil of reciprocating lever head, inner lead is long, easily bumps movement parts, and saw blade shake beat is big.
Summary of the invention
The objective of the invention is at above-mentioned the deficiencies in the prior art part, provide a kind of more simple in structure than above-mentioned prior art, moving component is few, and volume is little, and is in light weight, the pneumatic reciprocating saw of being convenient to operate.
The technical solution adopted for the present invention to solve the technical problems is: a kind of pneumatic reciprocating saw, has a handle 1 that has valve and press button, be assemblied in air-flow pressurized strut 4 in shell body 5 cylindrical shells and the end cap 2 that links with air-flow pressurized strut 4, it is characterized in that, be provided with in the described end cap 2 and under the air-flow effect, promote the air-flow supercharging lid 16 that air-leg 6 moves downward, on the end face of described air-flow supercharging lid 16, be shaped on and be evenly distributed on the circumference anchor ring, symmetrically towards axial flow hole 17 that central axis tilts, this axial flow hole 17 makes said flow supercharging lid 16 produce rotation under the air-flow effect, and it is consistent with direction on continuous air-flow pressurized strut 4 end faces in lower end, the shape unanimity, the gas channel 15 that quantity is identical misplaces or communicates, when axial flow hole 17 communicates with gas channel 15, air-flow tilts to connect through described air-flow pressurized strut 4 bottom annular grooves vertically, forms the upwards pressurized air stream that one oppositely promotes air-leg 6.
The present invention has following beneficial effect than prior art.
Pneumatic reciprocating saw provided by the invention and existing power saws have following advantage:
Internal structure of the present invention is more simple in structure than power saws, concentrate the reciprocating motion of impulse force to replace motor saw driven by motor with high pressure draught, reduced prior art turbine worm and the gear-driven volume that takies, it is little, in light weight to have a volume, cutting force is big, the efficient height, motion is steady, and the easy to operate Nai Long time operates and does not generate heat the advantage of long service life.Avoided the prior art high-voltage breakdown, wiping iron burning machine, the defective that spark is big, the machine seismic noise is big.
The present invention can make full use of pneumatic resource, reduces and uses electric consumption.Can implement cutting to Gang Ban ﹑ Gang Yuan ﹑ Lv Ban ﹑ aluminium section bar; Can implement the location to the profile of flat part, cutting or blanking accurately.
Description of drawings
Fig. 1 is the front view of the pneumatic reciprocating saw of the present invention.
The A-A of Fig. 2 Fig. 1 is to cutaway view.
Fig. 3 is the cutaway view of the air-flow supercharging lid among Fig. 1.
Fig. 4 is the cutaway view of the air-flow pressurized strut among Fig. 1.
Fig. 5 is the vertical view of Fig. 4.
Wherein: 1 handle, 2 end caps, 3 linings, 4 air-flow pressurized struts, 5 shell bodies, 6 air-legs, 7 vibration-damping sheets, 8 bearings, 9 adapter sleeves, 10 supports, 11 location guide wheels, 12 location sawtooth, 12 Saw blades, 13 springs, 14 inclination airflow holes, 15 gas channels, 16 air-flow superchargings lid, 17 axial flow holes.
The specific embodiment
Consult Fig. 1-Fig. 6.In a described most preferred embodiment, described pneumatic reciprocating saw has a handle 1 that has valve and press button, is assemblied in air-flow pressurized strut 4 in shell body 5 cylindrical shells and the end cap 2 that links with air-flow pressurized strut 4.End cap 2 is built-in with air-flow supercharging lid 16 shown in Figure 3, be shaped on the axial flow hole 17 that is evenly distributed on the circumference anchor ring on the end face of air-flow supercharging lid 16, these 17 oblique angles, axial flow hole are according to the Lavalle principle, symmetrically towards the center axioversion, the uniform axioversion circular hole of this five equilibrium is consistent with direction on air-flow pressurized strut 4 end faces that the lower end links to each other, the shape unanimity, the gas channel 15 that quantity is identical misplaces or communicates, when axial flow hole 17 communicates with gas channel 15, air-flow tilts to connect through described air-flow pressurized strut 4 bottom annular grooves vertically, form the upwards pressurized air stream that one oppositely promotes air-leg 6, it is more concentrated that the Lavalle pressurized air stream that produces enters air-flow pressurized strut 4 bottom annular grooves, and impulsive force is more arranged.
The linings 3 of air-flow supercharging lid 16 by the lower end link to each other as Fig. 4, air-flow pressurized strut 4 shown in Figure 5, and are force-fitted in by bearing 8 in the cylindrical shell of shell body 5.Air-flow pressurized strut 4 connects air-leg 6 by adapter sleeve 9.Air-leg 6 is press fit relation with adapter sleeve 9.Adapter sleeve 9 be shaped on one can with the holddown groove (not shown) of the width and the consistency of thickness of Saw blade 12, Saw blade 12 is fixed on the adapter sleeve 9 by the trip bolt on the adapter sleeve 9 by described holddown groove.Saw blade 12 both sides are provided with the location guide wheel 11 of 2 positions saw tooth bar 12 vertical direction, and Saw blade 12 stretches out the guide table of support 10 lower ends by two location guide wheels 11 on two horizontal connecting axles of support 10 die cavities, does straight reciprocating motion.
Be provided with a spring 13 that is assemblied on support 10 biside plates among Fig. 2, elasticity by spring 13 is received or the active force that contracts can guarantee the appropriate clearance amount of guide wheel and Saw blade 12, also can be according to the thickness of Saw blade 12, adjust the coupling mechanism force of the screw of support 10 both sides, be located at the intermediate space of location guide wheel 11 of Saw blade 12 both sides and the thickness of Saw blade 12 and be consistent.The benefit of spring 13 is and can appropriateness adjusts free clearance, makes things convenient for manyly than shimming, also can be according to the thickness rapid adjustment gap of Saw blade 12.Simultaneously, during Saw blade 12 work, because the elastic acting force of spring 13 can guarantee that more when vibration, Saw blade 12 is constant with guide wheel gap, location.
On air-flow pressurized strut 4 end faces shown in Figure 5, be shaped on the axioversion gas flow hole passage 15 of the perforation bottom annular groove that is provided with according to the Lavalle principle, this gas channel 15 air-flow pressurized strut 4 cylinders that are periphery, towards central axis, form a rounding frustum and shrink the rotary body profile symmetrically around central axis.The incline direction in the axial flow hole 17 on the distribution of gas channel 15 and the said flow supercharging lid 16 is identical, but the angle that tilts can variant, the big or small basically identical of shape, and quantity is identical, and is to concern one to one.Root at 4 three sinking stepped holes of air-flow pressurized strut is shaped on annular groove respectively, be shaped on the inclination airflow hole 14 of the uniform circumference of five equilibrium on the annular groove, this inclination airflow hole 14 tilts to connect said flow passage 15 vertically, make air-flow enter the pneumatic chamber of air-flow pressurized strut 4 according to the principle supercharging of aerodynamics Lavalle, process auxiliary drive air-leg 6 moves upward.When 6 of air-legs move to pressurized strut 4 middle parts, give certain high pressure draught impulsive force that makes progress, the opposition of generation drives air-leg 6 and moves upward, and 6 one-tenth certain cycles of its air-leg is made progress, following reciprocating motion.Can also be shaped on the perforation cylinder lumen at air-flow pressurized strut 4 middle parts, the radial air flow hole that communicates with at least one gas channel 15 simultaneously moves upward during by this radial air flow hole with auxiliary air-leg 6.Be shaped on the vibration-damping sheet 7 that auxiliary air-leg 6 elasticity make progress in the bottom of air-flow pressurized strut 4 pneumatic chambers.
Operation principle of the present invention is, high pressure draught enters end cap 2 by handle 1, impact supercharging lid 16 and produce rotation at a high speed, when supercharging cover axial flow hole 17 on 16 end faces rotate to air-flow pressurized strut 4 on gas channel 15 when misplacing mutually, the air-flow that enters gas channel 15 is blocked, enter supercharging and cover the upper surface that 16 axial flow holes, 17 interior air-flows directly impact air-leg 6, drive air-leg 6 and produce the active force that moves downward.Air-leg 6 moves downward arrival air-flow pressurized strut 4 bottom annular grooves and divides into the vibration-damping sheet of putting 7, the elastic damping sheet 7 that bump is made by vulcanie, make vibration-damping sheet 7 produce reaction force upwards, auxiliary air-leg 6 moves upward, at this moment the axial flow hole 17 on the supercharging lid 16 rotates to when consistent with the gas channel 15 of pressurized strut 4, the air-flow that enters gas channel 15 arrives the bottom of pressurized strut 4, impact pressurized strut 4 bottom end faces, produce the air-flow that upwards impacts air-leg 6 bottom end faces, driving air-leg 6 moves upward, when the air stream drives air-leg 6 that makes progress is crossed inclination airflow hole 14, enter the air-flow of oblique airflow hole 14, the active force of making progress for air-leg 6 promotes air-leg 6 and moves upward again.It is reciprocating to drive air-leg 6 again and again, drives on the Saw blade 12, comes and goes down and does the vertical line motion, and workpiece is implemented sawing processing.Because air-flow pressurized strut 4 inner chambers and air-leg 6 gaps are very little, have bearing 8 to locate, and make its air-leg 6 make following round rectilinear motion in air-flow pressurized strut 4 in addition.
Claims (7)
1. pneumatic reciprocating saw, has a handle (1) that has valve and press button, be assemblied in air-flow pressurized strut (4) in shell body (5) cylindrical shell and the end cap (2) that links with air-flow pressurized strut (4), it is characterized in that, be provided with in the described end cap (2) and under the air-flow effect, promote the air-flow supercharging lid (16) that air-leg (6) moves downward, on the end face of described air-flow supercharging lid (16), be shaped on and be evenly distributed on the circumference anchor ring, symmetrically towards axial flow hole (17) that central axis tilts, this axial flow hole (17) makes said flow supercharging lid (16) produce rotation under the air-flow effect, and it is consistent with direction on continuous air-flow pressurized strut (4) end face in lower end, the shape unanimity, the gas channel that quantity is identical (15) misplaces or communicates, when axial flow hole (17) and gas channel (15) when communicating, air-flow tilts to connect through described air-flow pressurized strut (4) bottom annular groove vertically, forms the upwards pressurized air stream that one oppositely promotes air-leg (6).
2. pneumatic reciprocating saw as claimed in claim 1, it is characterized in that, root at (4) three sinking stepped holes of air-flow pressurized strut is shaped on annular groove respectively, be shaped on the inclination airflow hole (14) of the uniform circumference of five equilibrium on the annular groove, this inclination airflow hole (14) tilts to connect said flow passage (15) vertically, make air-flow enter the air-leg chamber of air-flow pressurized strut (4) according to the principle supercharging of aerodynamics Lavalle, process auxiliary drive air-leg (6) moves upward.
3. pneumatic reciprocating saw as claimed in claim 2, it is characterized in that, described adapter sleeve (9) is shaped on a holddown groove with the consistency of thickness of Saw blade (12), and Saw blade (12) is fixed on the adapter sleeve (9) by the trip bolt on the adapter sleeve (9) by described holddown groove.
4. pneumatic reciprocating saw as claimed in claim 1 is characterized in that, can also be shaped on the perforation cylinder lumen at air-flow pressurized strut (4) middle part, the radial air flow hole that communicates with at least one gas channel (15) simultaneously.
5. pneumatic reciprocating saw as claimed in claim 1 is characterized in that, is shaped on the vibration-damping sheet (7) that auxiliary air-leg (6) elasticity makes progress in the bottom of air-flow pressurized strut 4 pneumatic chambers.
6. pneumatic reciprocating saw as claimed in claim 1, it is characterized in that, described Saw blade (12) both sides are provided with the location guide wheel (11) of (2) individual positions saw tooth bars (12) vertical direction, and Saw blade (12) stretches out the guide table of support (10) lower end by two the location guide wheels (11) on two horizontal connecting axles of support (10) die cavity.
7. pneumatic reciprocating saw as claimed in claim 1, it is characterized in that, described air-flow pressurized strut (4) connects air-leg (6) by adapter sleeve (9), and connects Saw blade (12) by screw, and Saw blade (12) is positioned on the location guide wheel (11) by support (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110233323 CN102275013B (en) | 2011-08-15 | 2011-08-15 | Pneumatic reciprocating saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110233323 CN102275013B (en) | 2011-08-15 | 2011-08-15 | Pneumatic reciprocating saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102275013A true CN102275013A (en) | 2011-12-14 |
| CN102275013B CN102275013B (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110233323 Expired - Fee Related CN102275013B (en) | 2011-08-15 | 2011-08-15 | Pneumatic reciprocating saw |
Country Status (1)
| Country | Link |
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| CN (1) | CN102275013B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028779A (en) * | 2012-11-19 | 2013-04-10 | 安徽理工大学 | Pneumatic hacksawing machine and pneumatic control system of pneumatic hacksawing machine |
| CN104227129A (en) * | 2013-06-20 | 2014-12-24 | 株式会社牧田 | Jigsaw |
| CN106424932A (en) * | 2016-11-17 | 2017-02-22 | 湖州峰霞五金贸易有限公司 | Force balance handsaw |
| CN108081205A (en) * | 2018-01-08 | 2018-05-29 | 成都飞机工业（集团）有限责任公司 | Hand-held pneumatic bushing press-mounting rifle |
| CN109291145A (en) * | 2018-11-26 | 2019-02-01 | 南安森威工业产品设计有限公司 | A kind of vertical auxiliary device of timber reciprocating cutting machine saw blade |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1406703A (en) * | 2001-09-10 | 2003-04-02 | 株式会社空研 | Pneumatic saw |
| JP2008080477A (en) * | 2006-08-31 | 2008-04-10 | Nitto Kohki Co Ltd | Reciprocating tool |
| CN101218072A (en) * | 2005-07-13 | 2008-07-09 | 日东工器株式会社 | Pneumatic tool |
| CN201132243Y (en) * | 2007-12-18 | 2008-10-15 | 实耐宝工具仪器(昆山)有限公司 | Air-actuated saw |
| JP2010253672A (en) * | 2009-04-22 | 2010-11-11 | Biax-Maschinen Gmbh | Hand-held type tool provided with swing type linear drive device |
| CN202356728U (en) * | 2011-08-15 | 2012-08-01 | 成都飞机工业（集团）有限责任公司 | Pneumatic sawing machine |
-
2011
- 2011-08-15 CN CN 201110233323 patent/CN102275013B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1406703A (en) * | 2001-09-10 | 2003-04-02 | 株式会社空研 | Pneumatic saw |
| CN101218072A (en) * | 2005-07-13 | 2008-07-09 | 日东工器株式会社 | Pneumatic tool |
| JP2008080477A (en) * | 2006-08-31 | 2008-04-10 | Nitto Kohki Co Ltd | Reciprocating tool |
| CN201132243Y (en) * | 2007-12-18 | 2008-10-15 | 实耐宝工具仪器(昆山)有限公司 | Air-actuated saw |
| JP2010253672A (en) * | 2009-04-22 | 2010-11-11 | Biax-Maschinen Gmbh | Hand-held type tool provided with swing type linear drive device |
| CN202356728U (en) * | 2011-08-15 | 2012-08-01 | 成都飞机工业（集团）有限责任公司 | Pneumatic sawing machine |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028779A (en) * | 2012-11-19 | 2013-04-10 | 安徽理工大学 | Pneumatic hacksawing machine and pneumatic control system of pneumatic hacksawing machine |
| CN103028779B (en) * | 2012-11-19 | 2015-04-15 | 安徽理工大学 | Pneumatic hacksawing machine and pneumatic control system of pneumatic hacksawing machine |
| CN104227129A (en) * | 2013-06-20 | 2014-12-24 | 株式会社牧田 | Jigsaw |
| CN104227129B (en) * | 2013-06-20 | 2017-04-26 | 株式会社牧田 | Jigsaw |
| US9855614B2 (en) | 2013-06-20 | 2018-01-02 | Makita Corporation | Jigsaw |
| CN106424932A (en) * | 2016-11-17 | 2017-02-22 | 湖州峰霞五金贸易有限公司 | Force balance handsaw |
| CN106424932B (en) * | 2016-11-17 | 2018-06-29 | 湖州峰霞五金贸易有限公司 | A kind of stress balance handsaw |
| CN108081205A (en) * | 2018-01-08 | 2018-05-29 | 成都飞机工业（集团）有限责任公司 | Hand-held pneumatic bushing press-mounting rifle |
| CN108081205B (en) * | 2018-01-08 | 2024-02-27 | 成都飞机工业（集团）有限责任公司 | Hand-held pneumatic lining press-fitting gun |
| CN109291145A (en) * | 2018-11-26 | 2019-02-01 | 南安森威工业产品设计有限公司 | A kind of vertical auxiliary device of timber reciprocating cutting machine saw blade |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102275013B (en) | 2013-04-03 |
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Granted publication date: 20130403 Termination date: 20130815 |