CN2482473Y - Cam-driven electric reciprocating saw - Google Patents
Cam-driven electric reciprocating saw Download PDFInfo
- Publication number
- CN2482473Y CN2482473Y CN 01244780 CN01244780U CN2482473Y CN 2482473 Y CN2482473 Y CN 2482473Y CN 01244780 CN01244780 CN 01244780 CN 01244780 U CN01244780 U CN 01244780U CN 2482473 Y CN2482473 Y CN 2482473Y
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- China
- Prior art keywords
- cam
- drive rod
- fork
- reciprocating saw
- motor
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- Expired - Fee Related
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Abstract
The utility model relates to a cam-driven electric reciprocating type saw, which consists of a casing body, a motor, a reducing mechanism, a working pendulum bar, and a saw web. The motor is arranged on the rear end of the casing body, a pinion gear of the reducing mechanism is arranged on a rotation axle extended from the a main shaft of the motor, a bull gear and the pinion gear are matched and arranged on the a bull gear shaft, a cam for driving the working pendulum bar to do reciprocating motion is arranged on a bull gear shaft, a cam slot is arranged on the cam, a drive rod is fixed on the working pendulum bar, the lower end of the drive rod is arranged in the cam slot and movably connected. Compared with the existing technology, the utility model has the advantages that the direction of the driving force provided by the drive rod is completely consistent with the direction of motion of the working pendulum bar, the top end of a drive arm moves in the straight line way, the abrasion and the vibration are little, the structure is simple, the processing and the installation are easy, the running is stable, the seize situation does not occur, and the working pendulum bar cannot be rotated.
Description
One, technical field
The utility model relates to a kind of electric tool, and particularly a kind of cam drives electric reciprocating saw.
Two, background technology
The electric reciprocating saw generally is used for operations such as engineering construction and furniture making.Existing electric reciprocating saw generally is made up of housing, motor, reducing gear, drive rod, saw blade etc.U.S. Pat 5050307 and US 5025562 disclose a kind of oscillating deck drive unit electric reciprocating saw.Its drives structure is on the extended rotating shaft of electric machine main shaft reduction pinion teeth to be set, gear wheel cooperates with pinion and is arranged on the Large Gear Shaft During, the oscillating deck drive unit is set on the Large Gear Shaft During, the actuating arm of oscillating deck drive unit is connected with the work fork of reciprocating, the work fork is contained in the bearing, the work fork be tubulose and have a groove, this groove is inserted in the actuating arm upper end, actuating arm passes the work fork and is connected with the hole of the fork far-end of working.Irrotational reciprocating motion is done in the rotation that limited of the sliding connection of actuating arm in groove just.Because the work fork is a tubulose, and a groove is longitudinally arranged, pass the part connection on the outstanding one side opposite of this groove actuating arm with the work fork.Because the limit of this groove is connected with the arm of drive unit, the work fork can not rotate, actuating arm is connected with the part away from the axial line of oscillating deck driving shaft, the axial line of work fork is nearer apart from the axial line of driving shaft than generally, drives structure is compacter, needing to have avoided with the special bearing or the measure of rotating with other restraint of labour fork, cost reduces greatly, and be useful on the dull and stereotyped drive unit of other reciprocating swings.The problem that prior art exists is: the direction of the driving force that actuating arm provides and the direction of motion of axle are not quite identical, on-rectilinear movement is made on the actuating arm top, wearing and tearing and vibration increase, in order to reduce vibration, also be provided with a sleeve at the work fork, another oscillating deck that is connected with sleeve, complex structure, processing difficulties are set on the Large Gear Shaft During.Though this technology has been taked the measure of restraint of labour fork rotation, owing to there is big gap between the restriction pair, the work fork still has the bigger anglec of rotation.
Three, summary of the invention
The purpose of this utility model be to provide a kind of simple in structure, driving force big, operate steadily, process and install and be easy to cam and drive electric reciprocating saw.
The technical solution that realizes the utility model purpose is: a kind of cam drives electric reciprocating saw, comprise housing, motor, reducing gear, work fork, saw blade, motor is arranged at the housing rear end, the pinion of reducing gear is set on the extended rotating shaft of electric machine main shaft, gear wheel cooperates with pinion and is arranged on the Large Gear Shaft During, it is characterized in that: the reciprocating cam of driving work fork is set on the Large Gear Shaft During, cam path is set on the cam, drive rod is connected on the work fork, the lower end of drive rod is arranged in the cam path, flexibly connects.
Principle of the present utility model is: utilize cam path to promote drive rod and produce along the axially reciprocating of work fork direction, and then the saw blade that drives the work fork and be fixed on work fork front end is done corresponding the reciprocating motion, owing to the fork motion that pushes the work forward by the cam path sidewall, Large Gear Shaft During is parallel to each other with the work fork, Gu the driving force that motor produces can act on the work fork fully.
The utility model compared with prior art, its remarkable advantage is: the direction of the driving force that drive rod provides is in full accord with the direction of motion of work fork, actuating arm top moving linearly, and adopted extraordinary cam groove profile curve, and can guarantee that the work fork operates steadily, wear and tear and vibrate little, and it is simple in structure, processing and installation stuck phenomenon can not occur easily, and the work fork can not rotate.
Four, description of drawings
Fig. 1 is the structural representation that cam of the present utility model drives electric reciprocating saw.
Fig. 2 is the expanded view that cam of the present utility model drives the cam path of electric reciprocating saw.
Five, the specific embodiment
In conjunction with Fig. 1, Fig. 2, cam of the present utility model drives electric reciprocating saw, comprise housing 1, motor 2, reducing gear 3, work fork 4, saw blade 5, motor is arranged at the housing rear end, saw blade is connected in work fork front end, detachably, reducing gear 3 is a gear combination, the pinion 9 of reducing gear is set on the extended rotating shaft of electric machine main shaft, gear wheel 10 cooperates with pinion and is arranged on the Large Gear Shaft During 11, and the reciprocating cam 6 of driving work fork is set on the Large Gear Shaft During, and cam path 7 is set on the cam, the work drive rod 8 that is connected on the fork, drive rod [8] is mutual vertical with work fork [4] to be good.The lower end of drive rod is arranged in the cam path; flexibly connect, drive rod 8 front ends can be provided with movable pulley 12, adopted circular tube of work fork 4 (guiding mechanism adopts feather key, keyway arrangements) or rectangle cross section pipe; work fork 4 two ends can be connected with sliding bearing 13; to reduce running resistance, improve the stationarity of work, consider protection housing and safety; housing overcoat one rubber sleeve 14; camshaft bearings at both ends 16 reduces power attenuation, but switch 15 self-lockings.
Claims (5)
1, a kind of cam drives electric reciprocating saw, comprise housing [1], motor [2], reducing gear [3], work fork [4], saw blade [5], motor is arranged at the housing rear end, the pinion [9] of reducing gear is set on the extended rotating shaft of electric machine main shaft, gear wheel [10] cooperates with pinion and is arranged on the Large Gear Shaft During, it is characterized in that: the reciprocating cam of driving work fork [6] is set on the Large Gear Shaft During [11], cam path [7] is set on the cam, drive rod [8] is connected on the work fork, the lower end of drive rod is arranged in the cam path, flexibly connects.
2, cam according to claim 1 drives electric reciprocating saw, and it is characterized in that: drive rod [8] front end is provided with movable pulley [12].
3, cam according to claim 1 and 2 drives electric reciprocating saw, it is characterized in that: the cross section of work fork [4] is circle or rectangle.
4, cam according to claim 1 and 2 drives electric reciprocating saw, it is characterized in that: work fork [4] two ends are connected with sliding bearing.
5, cam according to claim 1 and 2 drives electric reciprocating saw, it is characterized in that: drive rod [8] is vertical mutually with work fork [4].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244780 CN2482473Y (en) | 2001-07-12 | 2001-07-12 | Cam-driven electric reciprocating saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244780 CN2482473Y (en) | 2001-07-12 | 2001-07-12 | Cam-driven electric reciprocating saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2482473Y true CN2482473Y (en) | 2002-03-20 |
Family
ID=33656147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01244780 Expired - Fee Related CN2482473Y (en) | 2001-07-12 | 2001-07-12 | Cam-driven electric reciprocating saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2482473Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100542723C (en) * | 2004-05-15 | 2009-09-23 | 罗伯特·博世有限公司 | Hand held power machine |
| CN102462900A (en) * | 2010-11-18 | 2012-05-23 | 天津职业技术师范大学 | Multifunctional barrier-breaking rescue equipment |
| CN103008780A (en) * | 2012-12-10 | 2013-04-03 | 常熟建工建设集团有限公司苏州分公司 | Construction electric saw |
| CN103862108A (en) * | 2012-12-13 | 2014-06-18 | 苏州宝时得电动工具有限公司 | Reciprocator of reciprocating saw |
| CN105579175A (en) * | 2013-08-26 | 2016-05-11 | 喜利得股份公司 | Counterweight device |
| CN106270755A (en) * | 2016-08-23 | 2017-01-04 | 浙江东旺不锈钢实业有限公司 | A kind of telescopic reciprocating pipe cutter |
| CN109366539A (en) * | 2018-09-26 | 2019-02-22 | 李亦然 | A kind of electronic dismantling knife of courier packages' carton |
-
2001
- 2001-07-12 CN CN 01244780 patent/CN2482473Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100542723C (en) * | 2004-05-15 | 2009-09-23 | 罗伯特·博世有限公司 | Hand held power machine |
| CN102462900A (en) * | 2010-11-18 | 2012-05-23 | 天津职业技术师范大学 | Multifunctional barrier-breaking rescue equipment |
| CN103008780A (en) * | 2012-12-10 | 2013-04-03 | 常熟建工建设集团有限公司苏州分公司 | Construction electric saw |
| CN103862108A (en) * | 2012-12-13 | 2014-06-18 | 苏州宝时得电动工具有限公司 | Reciprocator of reciprocating saw |
| CN103862108B (en) * | 2012-12-13 | 2016-08-03 | 苏州宝时得电动工具有限公司 | The reciprocator of reciprocating sow |
| CN105579175A (en) * | 2013-08-26 | 2016-05-11 | 喜利得股份公司 | Counterweight device |
| US9962779B2 (en) | 2013-08-26 | 2018-05-08 | Hilti Aktiengesellschaft | Counterweight device |
| CN106270755A (en) * | 2016-08-23 | 2017-01-04 | 浙江东旺不锈钢实业有限公司 | A kind of telescopic reciprocating pipe cutter |
| CN109366539A (en) * | 2018-09-26 | 2019-02-22 | 李亦然 | A kind of electronic dismantling knife of courier packages' carton |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |