CN103100759B - Reciprocating saw - Google Patents
Reciprocating saw Download PDFInfo
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- CN103100759B CN103100759B CN201210587930.2A CN201210587930A CN103100759B CN 103100759 B CN103100759 B CN 103100759B CN 201210587930 A CN201210587930 A CN 201210587930A CN 103100759 B CN103100759 B CN 103100759B
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- impact zone
- cutter
- impact
- lifting position
- reciprocating
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Abstract
The invention discloses a kind of reciprocating saw, comprising: a housing; One is contained in the motor in housing; A reciprocating lever; An operation element; A clamping or release operation element are also arranged on the clamp system of reciprocating lever one end; A transmission mechanism, this transmission mechanism converts the rotary motion of motor the reciprocating motion of reciprocating lever to, this transmission mechanism also comprises a track drive assembly be connected with reciprocating lever, it can operate and drive operation element selectively along an orbit track, this track drive assembly comprises one and drives reciprocating lever to make the eccentric part moved pivotally, wherein, this eccentric part being at least provided with two drives reciprocating lever to make the protuberance moved pivotally.Driving reciprocating lever to make the protuberance moved pivotally by being at least provided with two, when rotating speed is identical, the number of times that operation element makes track type movement can be improve, thus improve cutting efficiency.
Description
Technical field
The present invention relates to a kind of reciprocating saw, be specifically related to a kind of reciprocating saw driving operation element to make track type movement.
Background technology
The various article that reciprocating saw is made for cutting different materials, such as metal tube, timber and plasterboard.This saw generally comprises a casing and a reciprocating lever be arranged in casing, and reciprocating lever is used for for operation element reciprocating along the direction of the longitudinal axis being parallel to this reciprocating lever.Its rotary motion to be delivered to the reciprocating motion on reciprocating lever by motor by transmission mechanism.In some reciprocating saws, different from straight reciprocating motion, operation element makes track type movement.The general characteristic of track type movement is, when cutting stroke, when operation element forward reciprocating saw casing inside contracts back, operation element is (i.e. cut direction) motion forward, and when backstroke, when operation element stretch from reciprocating saw casing from time, operation element corresponding backward (namely cut direction is reverse) move.Result to be the path of operation element be tortuous or track.It is believed that this orbital motion because driving operation element cut workpiece and be pulled away from operation element from workpiece in backstroke, raising cutting efficiency that can be suitable in cutting stroke.
These reciprocating saws are achieved in the following way.The rear end of reciprocating lever is by being connected with the cam face on swing pinion, revolve at cam face in the process turned around, cam face has a high point and a low spot, at height point place, drives the rear end of reciprocating lever move upward thus drive operation element to travel forward; At low spot place, the rear end of reciprocating lever is driven to move downward thus drive operation element to move backward.
But these reciprocating saws revolve at cam face in the process turned around all can only carry out a track type movement, and it is limited that its cutting efficiency is enhanced.In order to better improve cutting efficiency, be necessary to improve these reciprocating saws.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of reciprocating saw of better raising cutting efficiency.
In order to realize described target, the present invention adopts following technical scheme: a kind of reciprocating saw, comprising: a housing; One is contained in the motor in housing; A reciprocating lever; An operation element; A clamping or discharge described operation element and be arranged on the clamp system of reciprocating lever one end; A transmission mechanism, this transmission mechanism converts the rotary motion of motor the reciprocating motion of reciprocating lever to, this transmission mechanism also comprises a track drive assembly be connected with reciprocating lever, it can operate and drive operation element selectively along an orbit track, this track drive assembly comprises one and drives reciprocating lever to make the eccentric part moved pivotally, wherein, described eccentric part being at least provided with two drives reciprocating lever to make the protuberance moved pivotally.Driving reciprocating lever to make the protuberance moved pivotally by being at least provided with two, when rotating speed is identical, the number of times that operation element makes track type movement can be improve, thus improve cutting efficiency.
Further, transmission mechanism also comprises the jackshaft being driven rotation by motor, and eccentric part forms protuberance along on the axial direction of jackshaft, or forms protuberance along on the axial direction of jackshaft.
Further, eccentric part comprises: circular center wheel disc and be positioned at center wheel disc excircle for reciprocal cutter lifting, the peripheral rim of putting cutter; The axis direction of parallel center wheel disc is as short transverse, and the plane perpendicular to the axis of center wheel disc is horizontal plane; Peripheral rim is projected as the annulus coaxial with center wheel disc at horizontal plane, the upper surface of peripheral rim is formed between multiple impact zone, be formed with a cutter lifting position between an impact zone and one put cutter spacing, cutter lifting position and put cutter spacing and be respectively highest point between impact zone and lowest part, at cutter lifting position and the height value circumferentially consecutive variations of upper surface putting the peripheral rim between cutter spacing.
Further, the cutter lifting position height value between impact zone is all identical, and the height value putting cutter spacing between all impact zones is all identical.
Further, comprise between impact zone: only and between the first kind impact zone having a cutter lifting position between adjacent impact zone; Only and between adjacent impact zone between the total same Equations of The Second Kind impact zone putting cutter spacing; Between the impact zone adjacent with both sides respectively total cutter lifting position and put cutter spacing the 3rd class impact zone between.
Further, the upper surface of peripheral rim is formed with the smoothing interval highly remained unchanged, the height of smoothing interval and cutter lifting position or to put the height of cutter spacing identical.
Further, also comprise between impact zone: cutter lifting position with put between the 4th class impact zone that cutter spacing all connects with smoothing interval.
Number further between impact zone is 4, be respectively between the first impact zone, between the second impact zone, between the 3rd impact zone, between the 4th impact zone, be between first kind impact zone between the first impact zone, being between the 3rd class impact zone between the second impact zone, between the 3rd impact zone, is between first kind impact zone between the 4th impact zone; Have a cutter lifting position between the first impact zone and between the second impact zone, between the second impact zone and have one between the 3rd impact zone and put cutter spacing, between the 3rd impact zone and between the 4th impact zone, have a cutter lifting position; The number of smoothing interval is 1, connects respectively with the cutter spacing of putting between the first impact zone, between the 4th impact zone.
Further, circumferentially occupy quadrant between the first impact zone, in peripheral rim between the second impact zone, four have/a circumference circumferentially accounting for of peripheral rim between the 3rd impact zone, between the 4th impact zone, remainder is smoothing interval.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the reciprocating saw of the first embodiment of the present invention;
Fig. 2 is the sectional view of the reciprocating saw after the removal housing in Fig. 1;
Fig. 3 is the floor map of the eccentric part in Fig. 1;
Fig. 4 is the schematic diagram of the reciprocating saw of the second embodiment of the present invention;
Fig. 5 is the floor map of the eccentric part in Fig. 4.
The implication of Reference numeral in figure:
1,1 ' reciprocating saw, 10 housings, 11, casing, 110, rear handle, 12, drive housing, 120, front handlebar, 20 motors, 30,30 ' reciprocating lever, 31, sliding tray, 32,32 ' support set, 40, operation element, 50, clamp system, 60, transmission mechanism, 61, bevel pinion, 62,62 ' jackshaft, 63,63 ' bevel gear wheel, 64, cam, 70, track drive assembly, 71,71 ' eccentric part, 710,710 ' center wheel disc, 711,711 ' peripheral rim, 712, through hole.
Between A, the first impact zone, between B, the second impact zone, between C, the 3rd impact zone, between D, the 4th impact zone, E, smoothing interval; H1, H2 cutter lifting position, L1, L2, L3 put cutter spacing.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the present invention.
See figures.1.and.2, a reciprocating saw 1 of the first embodiment of the present invention, comprises a housing 10; One is contained in the motor 20 in housing 10; A reciprocating lever 30; An operation element 40, this operation element 40 can be saw blade, file and blade etc.; A clamping or release operation element 40 are also arranged on the clamp system 50 of reciprocating lever 30 one end, this clamp system 50 for can realize clamping or release operation element 40 without the need to aid, also can be clamped or release operation element 40 for just being realized by aid; A transmission mechanism 60, the rotary motion of motor 20 is converted to the reciprocating motion of reciprocating lever 30 by this transmission mechanism 60, this transmission mechanism 60 also comprises a track drive assembly 70 be connected with reciprocating lever 30, and it can operate and drive operation element 40 selectively along an orbit track.
Housing 10 comprises the casing 11 holding motor 20 and the drive housing 12 holding transmission mechanism 60.Casing 11 is formed with the rear handle 110 be connected with casing 11 in the one end away from operation element, drive housing 12 is formed with the front handlebar 120 gripped for staff in the one end near operation element.Transmission mechanism 60 comprise be connected with the driving shaft of motor bevel pinion 61, jackshaft 62, be arranged on jackshaft 62 and the bevel gear wheel 63 engaged with bevel pinion 61, bevel gear wheel 63 is provided with cam 64, this cam 64 is connected with the sliding tray 31 on reciprocating lever 30, the rotation rotarily driving bevel gear wheel 63 of motor 20, this cam 64 also can slide while circumferencial direction rotates in sliding tray 31, thus drives reciprocating lever 30 to realize moving back and forth.Transmission mechanism 60 also comprises track drive assembly 70, it can operate and drive operation element 40 selectively along an orbit track, this track drive assembly comprises one and drives described reciprocating lever 30 to make the eccentric part 71 moved pivotally, this eccentric part 71 is arranged on also together rotary motion with it on jackshaft 62, this eccentric part 71 is provided with at least two protuberances on the axial direction of jackshaft 62 axis, the protuberance of eccentric part 71 is with the support set 32 of reciprocating lever 30 or directly contact with reciprocating lever 30, revolve at eccentric part 71 in the process turned around, operation element 40 achieves the track type movement of at least twice.It will be understood by those skilled in the art that, the whole periphery of eccentric part 71 can arrange three, four even more protuberances as required, thus realize revolving in the process turned around at eccentric part 71, operation element 40 can realize the track type movement of more times number.User also regulates the distance between support set 32 and eccentric part 71 by adjusting knob 72, thus regulates operation element 40 to make or do not do track type movement or regulate operation element 40 to make the amplitude of track type movement.
With reference to Fig. 4, a reciprocating saw 1 ' of the second embodiment of the present invention, with the first embodiment unlike, its bevel gear wheel 63 ' is arranged on along on the jackshaft 62 ' in paper direction inside and outside, eccentric part 71 ' is being provided with at least two protuberances in the radial direction towards jackshaft 62 ' axis, the protuberance of eccentric part 71 ' is with the support set 32 ' of reciprocating lever 30 ' or directly contact with reciprocating lever 30 ', revolve at eccentric part 71 ' in the process turned around, operation element achieves the track type movement of at least twice.
With further reference to Fig. 3 and Fig. 5, illustrate the eccentric part 71 of the reciprocating saw 1 of two embodiments of the present invention, it comprises: center wheel disc 710 and peripheral rim 711, wherein peripheral rim 711 is positioned at the excircle of center wheel disc 710.Center wheel disc 710 is circular, be mainly used in being connected with driving shaft making whole eccentric part 71 along with driving shaft with the axis of center wheel disc 710 for rotating shaft pivotable.Peripheral rim 711 is for realizing reciprocal cutter lifting and putting cutter.
As preferably, center wheel disc 710 center is provided with multiple through hole 712 and overall concave sinks into below peripheral rim 711 upper surface minimum point.It is unbalanced at circumferencial direction that the effect of through hole 712 is to make up just the rise and fall quality that causes of peripheral rim 711 upper surface.
To be parallel to the direction of center wheel disc 710 axis as short transverse, plane perpendicular to the axis in center wheel disc 710 is horizontal plane (i.e. drawing shown in Fig. 1), peripheral rim 711 is projected as an annulus at horizontal plane, and this annulus and center wheel disc 710 have common axis.That is, go from the direction overlooked, the upper surface of peripheral rim 711 is the coaxial annulus of a Ge Yu center wheel disc 710.
Peripheral rim 711 is in order to realize cutter lifting and the action of putting cutter, and the upper surface of peripheral rim 711 is formed between multiple impact zone.In short transverse, there is a dullness along the circumferencial direction (clockwise or counterclockwise) of annulus to peripheral rim 711 upper surface between so-called impact zone to increase or dull a section (a section of annulus) reduced.
Be formed with cutter lifting position H1, a H2 and between an impact zone and put cutter spacing L1, L2, L3, cutter lifting position H1, H2 and put cutter spacing L1, L2, L3 are respectively highest point between impact zone and lowest part, and at cutter lifting position H1, H2 and the height value circumferentially consecutive variations of upper surface putting cutter spacing L1, peripheral rim between L2, L3.Specifically when aiming at cutter lifting position H1, H2 when you, the upper surface of peripheral rim 711 is the highest exactly, when eccentric part rotates, to make you aim to be between this impact zone by cutter lifting position H1, H2 to when putting cutter spacing L1, L2, L3 convergence, along with the height value generation continuous print change of rotating the upper surface that you aim at, vice versa.
In concrete instrument, often each cycle wishes that the amplitude that attachment realizes action is consistent, and cutter lifting position H1, H2 and put cutter spacing L1, movement range that namely height of L2, L3 determines attachment, so as a kind of preferred version, cutter lifting position H1, H2 height value between all impact zones is all identical, between all impact zones put cutter spacing L1, L2, L3 height value all identical.
In order to realize multiple action, comprise between impact zone: only and between the first kind impact zone having cutter lifting position H1, a H2 between adjacent impact zone; Only and between adjacent impact zone between the total same Equations of The Second Kind impact zone putting cutter spacing L1, L2, L3; Between the impact zone adjacent with both sides respectively total cutter lifting position H1, H2 and put cutter spacing L1, L2, L3 the 3rd class impact zone between.
In order to realize putting the continuous process of cutter-cutter lifting-put cutter between first kind impact zone, between two adjacent first kind impact zones, such process can be completed.
In order to realize the continuous process of cutter lifting-put cutter-cutter lifting between Equations of The Second Kind impact zone, between two adjacent Equations of The Second Kind impact zones, such process can be completed.
Put the process of cutter-cutter lifting-put cutter-cutter lifting to realize continuous print between the 3rd class impact zone,
In addition, also have between four class impact zones when the upper surface of peripheral rim 711 is formed with the smoothing interval E highly remained unchanged, cutter lifting position H1, H2 between the 4th class impact zone with put cutter spacing L1, L2, L3 all connect with smoothing interval.The height of smoothing interval and cutter lifting position H1, H2 or put cutter spacing L1, L2, L3 height identical.
As a kind of preferred version, the number between impact zone is 4, and the number being respectively D, smoothing interval E between C, the 4th impact zone between A between the first impact zone, the second impact interval B, the 3rd impact zone is 1.
Between the first impact zone, A and second impacts interval B and has cutter lifting position H1, a H2, between the second impact interval B and the 3rd impact zone, C has one and puts cutter spacing L1, L2, L3, between the 3rd impact zone, between C and the 4th impact zone, D has cutter lifting position H1, a H2, smoothing interval E respectively with between the first impact zone between A, the 4th impact zone D put cutter spacing L1, L2, L3 connect.More specifically, A between the first impact zone, second impacts interval B and circumferentially occupies quadrant in peripheral rim 711, between the 3rd impact zone, between C, the 4th impact zone, D four has/a circumference circumferentially accounting for of peripheral rim 711, and remainder is smoothing interval E.In addition in order to realize on all four repetitive process, circumference ratio shared between A with the 3rd impact zone C between the first impact zone is also identical.
So, combination between these four impact zones can realize the continuous print action of cutter lifting-put cutter-cutter lifting-put cutter, if this smoothing interval E is as altitude datum, the plane at the upper surface place of the peripheral rim 711 that is in smoothing interval E is as datum plane, when peripheral rim 711 pivot circles, the impact process of benchmark-cutter lifting-put cutter-cutter lifting-put cutter-benchmark can be realized.
Can find out that between the first impact zone, A is between first kind impact zone, between the second impact interval B, the 3rd impact zone, C is between the 3rd class impact zone, and between the 4th impact zone, D is between first kind impact zone.We can realize how concrete impact process by other combination.
Shown in seeing figures.1.and.2, it should be noted that the dullness between impact zone increases or dull reduction here, refer to along the circumferential direction, and radial direction be do not have vicissitudinous, not only for one with peripheral rim 711 upper surface close contact but also for the contact that can move up and down, no matter its subpoint at horizontal plane is on any one circle of the annulus of peripheral rim 711, its by cutter lifting position H1, H2 to putting cutter spacing L1, L2, L3(or conversely) process in, the change of contact height value is the same.That is, for same circumferential position, height value can not change along with the change of radial position, in order to realize this point, as a kind of preferred version, cutter lifting position H1, H2 and put cutter spacing L1, the concrete form of L2, L3 to be in the upper surface of peripheral rim 711 crest line that is parallel to horizontal plane, this crest line the projection in horizontal plane after extending by center (center of circle) that the annulus of above-mentioned peripheral rim 711 projects, crest line as cutter lifting position H1, H2 is called cutter lifting crest line, and as putting cutter spacing L1, the crest line of L2, L3 is called and puts cutter crest line.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (4)
1. a reciprocating saw, comprising: a housing; It is characterized in that, also comprise: one is contained in the motor in housing; A reciprocating lever; An operation element; A clamping or discharge described operation element and be arranged on the clamp system of described reciprocating lever one end; A transmission mechanism, described transmission mechanism converts the rotary motion of described motor the reciprocating motion of described reciprocating lever to, described transmission mechanism also comprises one drives operation element track drive assembly along an orbit track, it is connected with described reciprocating lever, described track drive assembly comprises an eccentric part, and described eccentric part is at least provided with two and drives described reciprocating lever to make the protuberance moved pivotally; Described eccentric part comprises: circular center wheel disc and be positioned at center wheel disc excircle for reciprocal cutter lifting, the peripheral rim of putting cutter; The axis direction of parallel described center wheel disc is as short transverse, and the plane perpendicular to the axis of described center wheel disc is horizontal plane; Described peripheral rim is projected as the annulus coaxial with described center wheel disc at horizontal plane, the upper surface of described peripheral rim is formed between multiple impact zone, be formed with a cutter lifting position between a described impact zone and one put cutter spacing, described cutter lifting position and put cutter spacing and be respectively highest point between described impact zone and lowest part, at described cutter lifting position and the height value circumferentially consecutive variations of upper surface putting the described peripheral rim between cutter spacing; Cutter lifting position height value between all described impact zones is all identical, and the height value putting cutter spacing between all described impact zones is all identical; Comprise between described impact zone: only and between the first kind impact zone having a described cutter lifting position between adjacent impact zone; Between the Equations of The Second Kind impact zone putting cutter spacing described in total same only and between adjacent impact zone; Between the impact zone adjacent with both sides respectively total described cutter lifting position and put cutter spacing the 3rd class impact zone between; The upper surface of described peripheral rim is formed with the smoothing interval highly remained unchanged, the height of described smoothing interval and described cutter lifting position or to put the height of cutter spacing identical; Also comprise between described impact zone: described cutter lifting position with put between the 4th class impact zone that the equal and described smoothing interval of cutter spacing connects; Number between described impact zone is 4, be respectively between the first impact zone, between the second impact zone, between the 3rd impact zone, between the 4th impact zone, be between first kind impact zone between described first impact zone, being between the 3rd class impact zone between the second impact zone, between the 3rd impact zone, is between first kind impact zone between the 4th impact zone; Have a cutter lifting position between described first impact zone and between the second impact zone, between described second impact zone and have one between the 3rd impact zone and put cutter spacing, between described 3rd impact zone and between the 4th impact zone, have a cutter lifting position; The number of described smoothing interval is 1, connects respectively with the cutter spacing of putting between described first impact zone, between the 4th impact zone.
2. reciprocating saw according to claim 1, is characterized in that, described transmission mechanism also comprises the jackshaft being driven rotation by motor, and described eccentric part forms described protuberance along on the axial direction of described jackshaft.
3. reciprocating saw according to claim 1, is characterized in that, described transmission mechanism also comprises the jackshaft being driven rotation by motor, and described eccentric part forms described protuberance in the radial direction along described jackshaft.
4. reciprocating saw according to claim 1, it is characterized in that, circumferentially quadrant is occupied between described first impact zone, in peripheral rim between the second impact zone, four have/a circumference circumferentially accounting for of peripheral rim between described 3rd impact zone, between the 4th impact zone, remainder is described smoothing interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210587930.2A CN103100759B (en) | 2012-12-29 | 2012-12-29 | Reciprocating saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210587930.2A CN103100759B (en) | 2012-12-29 | 2012-12-29 | Reciprocating saw |
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| Publication Number | Publication Date |
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| CN103100759A CN103100759A (en) | 2013-05-15 |
| CN103100759B true CN103100759B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210587930.2A Expired - Fee Related CN103100759B (en) | 2012-12-29 | 2012-12-29 | Reciprocating saw |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105230368B (en) * | 2015-11-02 | 2018-05-29 | 国网山东省电力公司电力科学研究院 | A kind of hot line robot delimbing instrument |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2234032A (en) * | 1989-07-11 | 1991-01-23 | Black & Decker Inc | Drive mechanism for converting rotary motion into reciprocating linear motion |
| CN201211579Y (en) * | 2008-06-18 | 2009-03-25 | 苏州宝时得电动工具有限公司 | Reciprocating cutting tool |
| CN101602125A (en) * | 2008-06-15 | 2009-12-16 | 苏州宝时得电动工具有限公司 | Reciprocating saw |
| CN202556373U (en) * | 2012-03-21 | 2012-11-28 | 南京德朔实业有限公司 | Reciprocating electric tool balancing mechanism |
| CN203221247U (en) * | 2012-12-29 | 2013-10-02 | 南京德朔实业有限公司 | Reciprocating saw |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10358033B4 (en) * | 2003-12-11 | 2007-05-03 | Hilti Ag | drive arrangement |
-
2012
- 2012-12-29 CN CN201210587930.2A patent/CN103100759B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2234032A (en) * | 1989-07-11 | 1991-01-23 | Black & Decker Inc | Drive mechanism for converting rotary motion into reciprocating linear motion |
| CN101602125A (en) * | 2008-06-15 | 2009-12-16 | 苏州宝时得电动工具有限公司 | Reciprocating saw |
| CN201211579Y (en) * | 2008-06-18 | 2009-03-25 | 苏州宝时得电动工具有限公司 | Reciprocating cutting tool |
| CN202556373U (en) * | 2012-03-21 | 2012-11-28 | 南京德朔实业有限公司 | Reciprocating electric tool balancing mechanism |
| CN203221247U (en) * | 2012-12-29 | 2013-10-02 | 南京德朔实业有限公司 | Reciprocating saw |
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| CN103100759A (en) | 2013-05-15 |
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