CN201371284Y - Electric curve saw - Google Patents
Electric curve saw Download PDFInfo
- Publication number
- CN201371284Y CN201371284Y CN200920114917U CN200920114917U CN201371284Y CN 201371284 Y CN201371284 Y CN 201371284Y CN 200920114917 U CN200920114917 U CN 200920114917U CN 200920114917 U CN200920114917 U CN 200920114917U CN 201371284 Y CN201371284 Y CN 201371284Y
- Authority
- CN
- China
- Prior art keywords
- saw
- casing
- stator
- saw blade
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses an electric curve saw, which can effectively solve the problems that the existing electric curve saw has large noise, can generate carbon-brush dust, and has fast carbon-brush wearing so as to cause the machine to have shorter service life and low whole efficiency. The electric curve saw comprises a case, a driving device, an eccentric mechanism, a saw blade clamp, a saw blade, an adjustable base, a handle, a brushless motor and a circuit controller, wherein one end of the driving mechanism is connected with one end of the eccentric mechanism and the other end of the eccentric mechanism is provided with the saw blade clamp; the lower end of the saw blade clamp is clamped with the saw blade; the adjustable base is arranged at the lower end of the case; a stator of the brushless motor is fixed on the case; a rotor shaft of the brushless motor is arranged on the case by a rolling device; the rotor shaft is connected with the other end of the driving device; and the circuit controller is arranged on the case. The electric curve saw has the advantages that the brushless motor is adopted, the noise is small, no carbon-brush dust and no carbon-brushless wearing exist, the efficiency is improved by 30 percent, the service life of the machine is longer than that of a series motor by a plurality of times, and the cost can be saved by utilizing the case of the electric curve saw as the case of the brushless motor.
Description
Technical field
The utility model relates to a kind of electric tool, particularly a kind of electric jig saw.
Background technology
Electric jig saw is a kind of electric tool of comparatively popularizing, and is widely used in industries such as automobile, boats and ships, wooden model, decoration, leather, by the upper and lower reciprocating motion of saw blade, carries out straight line or curve sawing on sheet materials such as timber, metal, plastics, rubber; Regulate the left and right angle of base plate and can carry out the inclined-plane sawing.
Existing electric jig saw mainly uses series excited machine, and series excited machine noise is bigger in use, and be subjected to structural limitations own, series excited machine need use carbon brush, carbon brush and slip ring surface contact, because the cause of spring pressure effect and elastic properties of materials distortion embeds direct contact portion mutually.When relative slip, because of rubbing action forms wearing and tearing.If the carbon brush particle is thick and stiff, or contain hard particles, mechanical wear is increased greatly just like diamond dust and so on.Simultaneously because contain a spot of cementite in the carbon brush, carborundum is the husky ashes of Buddha's warrior attendant, improving the anti-wear performance of brush, but also can make the collector ring surface pull into groove, in case form groove very harmful to motor.Carbon brush is non-metallic conduction material, and resistance coefficient is big, is 400 times of copper.The energy consumption height that resistance produces; Contact resistance, mechanical friction hear rate that the sliding friction conduction that continues produces, the resistance energy consumption that adds power up brush is converted into Gao Reyi wears out spring decompression and lead, causes loose contact, produces spark, has a strong impact on motor and normally moves.And carbon brush will rely on elastic force and slip ring surface contact, if too small carbon brush of pressure and slip ring surface contacts instability, causes electric arc easily, makes the commutator wear increase.Pressure is excessive, and the solids of brush finish is scraped the slip ring surface and cut seriously, and mechanical wear is increased.And existing electric jig saw can't work under the situation of civil power not having, and restricted its use.
The utility model content
The purpose of this utility model is to provide a kind of electric jig saw, and it is big effectively to solve existing electric jig saw noise, can produce the carbon brush dust, and the carbon brush quick abrasion causes machine shorter service life, the problem that whole efficiency is not high.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of electric jig saw, comprise casing, transmission device, eccentric stiffener, the saw blade folder, saw blade, adjustable base, handle, brushless electric machine and circuit controller, described transmission mechanism one end links to each other with eccentric stiffener one end, the described eccentric stiffener other end is provided with the saw blade folder, described saw blade folder lower end accompanies saw blade, described adjustable base is arranged on the casing lower end, the stator of described brushless electric machine is fixed on the casing, the armature spindle of described brushless electric machine is arranged on the casing by tourelle, described armature spindle links to each other with the other end of transmission device, and described circuit controller is arranged on the casing.
Preferably, described casing is provided with ventilating opening, and the two ends that an end of described armature spindle is provided with fan blade or armature spindle are provided with fan blade; Armature spindle drives fan blade and rotates, and increases the circulation of air of sweep-saw inside, is motor and inner member cooling.
Preferably, described circuit controller is arranged on the casing between ventilating opening and the fan blade; The air that produces when fan blade is rotated flows and is the circuit controller cooling.
Preferably, the stator of described brushless electric machine is an annular, evenly is provided with some coil teeth on the inwall of described annular stator; On described each coil tooth around coil and the coil on the adjacent windings tooth between leave interior ventilating duct; Leave ventilating duct in stator interior, the cooling stator coil.
Preferably, also comprise power pack and charging battery cartridge, described handle, at its lower end is provided with lead, and described lead one end is provided with plug, and described power pack and charging battery cartridge are provided with the socket suitable with line trap; Can power with power pack when civil power is arranged, can not power with charging battery cartridge when having civil power, charging battery cartridge can be connected charging with lead with power pack.
Preferably, the outside of described stator is provided with at least one positioning boss or at least one detent; Make things convenient for the stator of brushless electric machine fixing on casing, prevent the stator rotation.
Compared with prior art, the utility model has the advantages that: adopt brushless electric machine, noise is little, there are not the yet non-carbonate wearing and tearing of carbon brush dust, efficient improves 30%, service life of a machine is than the high several times of series excited machine, circuit controller can be realized rotation-clogging protection, overcurrent protection, overvoltage protection, utilize the casing of electric jig saw to save cost as the shell of brushless electric machine, circuit controller embeds casing inside Anywhere, reduce external control line raising reliability and make more convenient operation, realized real electromechanical integration; Can under the environment of no civil power, rely on battery-powered operation, realize the wide voltage of a machine dual-purpose civil power.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of a kind of electric jig saw of the utility model;
Fig. 2 is the brushless motor stator structural representation of a kind of electric jig saw of the utility model;
Fig. 3 is the brushless motor stator and the positioning boss section structure schematic diagram of a kind of electric jig saw of the utility model;
Fig. 4 is the brushless motor stator and the detent section structure schematic diagram of a kind of electric jig saw of the utility model.
The specific embodiment
Consult the embodiment of Fig. 1 to Fig. 4 for a kind of electric jig saw of the utility model, a kind of electric jig saw, comprise casing 1, transmission device 5, eccentric stiffener 2, saw blade folder 41, saw blade 42, adjustable base 3, handle 6, brushless electric machine and circuit controller 8, described transmission mechanism one end links to each other with eccentric stiffener 2 one ends, described eccentric stiffener 2 other ends are provided with saw blade folder 41, described saw blade presss from both sides 41 lower ends and accompanies saw blade 42, described adjustable base 3 is arranged on casing 1 lower end, the stator 71 of described brushless electric machine is fixed on the casing 1, the armature spindle 72 of described brushless electric machine is arranged on the casing 1 by tourelle, described armature spindle 72 links to each other with the other end of transmission device 5, described circuit controller 8 is arranged on the casing 1, and the armature spindle 72 of described brushless electric machine is arranged on the casing 1 by rolling bearing 11; Described casing 1 is provided with ventilating opening 12, and an end of described armature spindle 72 is provided with fan blade 73 or armature spindle 72 two ends all are provided with fan blade 73; Described circuit controller 8 is arranged on the casing 1 between ventilating opening 12 and the fan blade 73, and circuit controller 8 just is in the other separate ventilation road 13 of stator 71 like this; The stator 71 of described brushless electric machine is an annular, evenly is provided with some coil teeth 711 on the inwall of described annular stator 71; On described each coil tooth 711 around coil 712 and the coil 712 on the adjacent windings tooth 711 between leave in ventilating duct 713; The outside of described stator 71 is provided with at least one and cooperates positioning boss 714 or the detent 715 that prevents stator 71 rotations with casing 1; Electric jig saw also comprises power pack 91 and charging battery cartridge 95, and described handle 6 lower ends are provided with lead 92, and described lead 92 1 ends are provided with plug 93, and described power pack 91 and charging battery cartridge 95 are provided with and the suitable socket 94 of lead 92 plugs 93.
During work, power pack 91 is inserted civil power, the plug 93 of lead 92 inserts in the socket 94 of power pack 91, rotate by switching device 61 control brushless electric machines, armature spindle 72 drive transmissions 5 of brushless electric machine make eccentric stiffener 2 motions, eccentric stiffener 2 drives saw blade 42 and moves up and down, and can make the left and right angle of adjusting base can carry out the inclined-plane sawing; In the place that does not have civil power, can be connected power supply by the socket 94 of charging battery cartridge 95 with the plug 93 of lead 92 and make electric jig saw work.Control circuit in this power pack 91 can be suitable for 90-260V voltage, can use in most of area in the whole world, when not using electric jig saw, charging battery cartridge 95 can be connected with power pack 91 simultaneously, gives charging battery cartridge 95 chargings by power pack 91.The air outlet in air channel can design in saw blade 42 direction of motion rear ends, and the sawdust that produces when blowing away saw blade 42 cuttings allows the user see the direction that electric saw advances clearly.
The above only is the specific embodiment of the utility model the best, but architectural feature of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and variation of being done or modification all are encompassed among the claim of the present utility model.
Claims (9)
1. electric jig saw, comprise casing (1), transmission device (5), eccentric stiffener (2), saw blade folder (41), saw blade (42), adjustable base (3) and handle (6), described transmission mechanism one end links to each other with eccentric stiffener (2) one ends, described eccentric stiffener (2) other end is provided with saw blade folder (41), described saw blade folder (41) lower end accompanies saw blade (42), described adjustable base (3) is arranged on casing (1) lower end, it is characterized in that: also comprise brushless electric machine and circuit controller (8), the stator of described brushless electric machine (71) is fixed on the casing (1), the armature spindle of described brushless electric machine (72) is arranged on the casing (1) by tourelle, described armature spindle (72) links to each other with the other end of transmission device (5), and described circuit controller (8) is arranged on the casing (1).
2. a kind of electric jig saw as claimed in claim 1 is characterized in that: described casing (1) is provided with ventilating opening (12), and an end of described armature spindle (72) is provided with fan blade (73).
3. a kind of electric jig saw as claimed in claim 1 is characterized in that: described casing (1) is provided with ventilating opening (12), and the two ends of described armature spindle (72) are provided with fan blade (73).
4. as claim 2 or 3 described a kind of electric jig saws, it is characterized in that: described circuit controller (8) is arranged on the casing (1) between ventilating opening (12) and the fan blade (73).
5. a kind of electric jig saw as claimed in claim 1 is characterized in that: the stator of described brushless electric machine (71) is an annular, evenly is provided with some coil teeth (711) on the inwall of described annular stator (71).
6. a kind of electric jig saw as claimed in claim 5 is characterized in that: described each coil tooth (711) go up around coil (712) and the coil (712) on the adjacent windings tooth (711) between leave interior ventilating duct (713).
7. a kind of electric jig saw as claimed in claim 1, it is characterized in that: also comprise power pack (91) and charging battery cartridge (95), described handle (6) lower end is provided with lead (92), described lead (92) one ends are provided with plug (93), and described power pack (91) and charging battery cartridge (95) are provided with and the suitable socket (94) of lead (92) plug (93).
8. a kind of electric jig saw as claimed in claim 5 is characterized in that: the outside of described stator (71) is provided with at least one and cooperates the positioning boss (714) that prevents stator (71) rotation with casing (1).
9. a kind of electric jig saw as claimed in claim 5 is characterized in that: the described outside due to (71) is provided with at least one and cooperates the detent (715) that prevents stator (71) rotation with casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920114917U CN201371284Y (en) | 2009-03-06 | 2009-03-06 | Electric curve saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920114917U CN201371284Y (en) | 2009-03-06 | 2009-03-06 | Electric curve saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201371284Y true CN201371284Y (en) | 2009-12-30 |
Family
ID=41497368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920114917U Expired - Fee Related CN201371284Y (en) | 2009-03-06 | 2009-03-06 | Electric curve saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201371284Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962821A (en) * | 2012-11-07 | 2013-03-13 | 应时立 | Direct-drive electric tool |
-
2009
- 2009-03-06 CN CN200920114917U patent/CN201371284Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962821A (en) * | 2012-11-07 | 2013-03-13 | 应时立 | Direct-drive electric tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201371407Y (en) | Flat sander | |
| US7323797B2 (en) | Power tool | |
| CN201371259Y (en) | Electric hammer | |
| CN201371408Y (en) | Angle grinder | |
| US20060087193A1 (en) | Power tool | |
| CN201371283Y (en) | Electric circular saw | |
| CN102710067A (en) | Series-excited motor | |
| CN201371437Y (en) | Electric screwdriver | |
| CN201371284Y (en) | Electric curve saw | |
| WO2014071835A1 (en) | Direct-drive electric tool | |
| CN201371260Y (en) | Impact electric drill | |
| CN201579454U (en) | Rechargeable electric drill free of carbon brush | |
| CN202586654U (en) | Series motor | |
| CN201371481Y (en) | Electric planer | |
| CN201371285Y (en) | Electric reciprocating saw | |
| CN201371512Y (en) | Electric drill | |
| CN201371484Y (en) | Electric router | |
| CN202309337U (en) | Other-fan air-cooling automatic tool-changing electric spindle for woodworking carving and milling | |
| CN202985527U (en) | Direct-drive electric tool | |
| CN201371517Y (en) | Marble machine | |
| CN205734268U (en) | Portable collector ring numerically control grinder | |
| CN202208007U (en) | Reciprocating type electric multipurpose tool | |
| CN211063507U (en) | Electric motor car motor end cover perforating device | |
| CN206982386U (en) | A kind of angle grinder with anti-vibration functions | |
| CN106059169A (en) | Novel dust collector motor structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIAHE TOOLS CO., LTD. Free format text: FORMER OWNER: JIANG WEILIANG Effective date: 20111214 Free format text: FORMER OWNER: YING SHILI Effective date: 20111214 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111214 Address after: 25 No. 321300 Zhejiang province Yongkang City Hardware Technology Industrial Park, Park Avenue South Patentee after: Jiahe Tools Co., Ltd. Address before: 321300 Zhejiang province Yongkang City Park Economic Development Zone South Road No. 25 Yongkang Jiahe Instrument Company Co-patentee before: Ying Shili Patentee before: Jiang Weiliang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20160306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |