CN201371285Y - Electric reciprocating saw - Google Patents
Electric reciprocating saw Download PDFInfo
- Publication number
- CN201371285Y CN201371285Y CN200920114926U CN200920114926U CN201371285Y CN 201371285 Y CN201371285 Y CN 201371285Y CN 200920114926 U CN200920114926 U CN 200920114926U CN 200920114926 U CN200920114926 U CN 200920114926U CN 201371285 Y CN201371285 Y CN 201371285Y
- Authority
- CN
- China
- Prior art keywords
- reciprocating saw
- casing
- saw
- stator
- electric reciprocating
- 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 reciprocating saw which can effectively solve the problems of the prior electric reciprocating saw such as high noise, generated carbon brush dust, short service life caused by quick carbon brush abrasion and low overall efficiency. The electric reciprocating saw comprises a case, a transmission device, an eccentric device, a reciprocating lever, a saw blade, a handle, a brushless motor and a circuit controller. One end of the transmission device is connected with one end of the eccentric device; the other end of the eccentric device is connected with the reciprocating lever; the saw blade is arranged on the reciprocating lever; the stator of the brushless motor is fixed on the case; a rotor shaft is arranged on the case through a rolling device and connected with the other end of the transmission device; and the circuit controller is arranged on the case. The electric reciprocating saw has the advantages of adopting the brushless motor, ensuring low noise, and generating no carbon brush dust and carbon brush abrasion, improving the efficiency by 30 percent, ensuring the service life of the machine to be longer than that of a series machine by a plurality of times, causing the circuit controller to achieve rotation blockage protection, overcurrent protection and overvoltage protection, and saving the cost by utilizing the case of the electric reciprocating 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 reciprocating saw.
Background technology
Electric reciprocating saw carries out the electric tool of sawing with reciprocating saw blade.
Existing electric reciprocating 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 reciprocating 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 reciprocating saw, and it is big effectively to solve existing electric reciprocating 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 reciprocating saw, comprise casing, transmission device, eccentric, reciprocating lever, saw blade, handle, brushless electric machine and circuit controller, one end of described transmission device links to each other with eccentric one end, the described eccentric other end links to each other with reciprocating lever, described reciprocating lever is provided with saw blade, 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 electric reciprocating 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.
Preferably, described eccentric is an eccentric block; Simple and reliable eccentric.
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 reciprocating 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 reciprocating saw of the utility model;
Fig. 2 is the brushless motor stator structural representation of a kind of electric reciprocating 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 reciprocating saw of the utility model;
Fig. 4 is the brushless motor stator and the detent section structure schematic diagram of a kind of electric reciprocating saw of the utility model.
The specific embodiment
Consult the embodiment of Fig. 1 to Fig. 4 for a kind of electric reciprocating saw of the utility model, a kind of electric reciprocating saw, comprise casing 1, transmission device 5, eccentric 2, reciprocating lever 41, saw blade 42, handle 6, brushless electric machine and circuit controller 8, one end of described transmission device 5 links to each other with eccentric 2 one ends, described eccentric 2 other ends link to each other with reciprocating lever 41, described reciprocating lever 41 is provided with saw blade 42, 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, described eccentric 2 is an eccentric block, 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 3 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 reciprocating 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, the armature spindle 72 of brushless electric machine drives by transmission device 5 and drives eccentric 2 motions, the athletic meeting of described eccentric 2 make reciprocating lever 41 drive saw blades 42 do back and forth back and forth, make saw blade 42 cutting objects; 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 reciprocating 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 reciprocating saw, charging battery cartridge 95 can be connected with power pack 91 simultaneously, gives charging battery cartridge 95 chargings by power pack 91.
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 (10)
1. electric reciprocating saw, comprise casing (1), transmission device (5), eccentric (2), reciprocating lever (41), saw blade (42) and handle (6), one end of described transmission device (5) links to each other with eccentric (2) one ends, described eccentric (2) other end links to each other with reciprocating lever (41), described reciprocating lever (41) is provided with saw blade (42), 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 reciprocating 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 reciprocating 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 reciprocating 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 reciprocating 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 reciprocating 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 reciprocating 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 reciprocating 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 reciprocating 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 detent (715) that prevents stator (71) rotation with casing (1).
10. a kind of electric reciprocating saw as claimed in claim 1 is characterized in that: described eccentric (2) is an eccentric block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920114926U CN201371285Y (en) | 2009-03-06 | 2009-03-06 | Electric reciprocating saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920114926U CN201371285Y (en) | 2009-03-06 | 2009-03-06 | Electric reciprocating saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201371285Y true CN201371285Y (en) | 2009-12-30 |
Family
ID=41497369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920114926U Expired - Fee Related CN201371285Y (en) | 2009-03-06 | 2009-03-06 | Electric reciprocating saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201371285Y (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 CN200920114926U patent/CN201371285Y/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 | |
| CN201371408Y (en) | Angle grinder | |
| CN201371259Y (en) | Electric hammer | |
| US7323797B2 (en) | Power tool | |
| CN201179671Y (en) | Electric chain saw | |
| CN201371283Y (en) | Electric circular saw | |
| CN201371437Y (en) | Electric screwdriver | |
| WO2014071835A1 (en) | Direct-drive electric tool | |
| CN201371285Y (en) | Electric reciprocating saw | |
| CN201371260Y (en) | Impact electric drill | |
| JP2006121833A (en) | Power tool | |
| CN201371481Y (en) | Electric planer | |
| CN201371484Y (en) | Electric router | |
| CN201371512Y (en) | Electric drill | |
| CN201371284Y (en) | Electric curve saw | |
| CN201371517Y (en) | Marble machine | |
| CN202985527U (en) | Direct-drive electric tool | |
| CN211440319U (en) | Direct-drive type alternating current-direct current chain saw | |
| CN216599237U (en) | High-efficient heat abstractor of brushless DC motor stator | |
| CN201869032U (en) | Carbon powder dust-discharge cleaning and cooling device for collector ring of wind driven generator | |
| CN106059169A (en) | Novel dust collector motor structure | |
| CN210106183U (en) | Water pump unit cooling structure | |
| CN2565169Y (en) | Electric machine carbon brush device with automatic unit for indicating brush wear | |
| CN203843805U (en) | Coaxial electric tool | |
| CN206982386U (en) | A kind of angle grinder with anti-vibration functions |
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 |