CN204295054U - A kind of outer rotor brushless DC motor directly drives diagonal cutting saw - Google Patents
A kind of outer rotor brushless DC motor directly drives diagonal cutting saw Download PDFInfo
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- CN204295054U CN204295054U CN201420693645.3U CN201420693645U CN204295054U CN 204295054 U CN204295054 U CN 204295054U CN 201420693645 U CN201420693645 U CN 201420693645U CN 204295054 U CN204295054 U CN 204295054U
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- diagonal cutting
- saw blade
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Abstract
The utility model discloses a kind of outer rotor brushless DC motor and directly drive diagonal cutting saw, aim to provide that a kind of transmission efficiency is high and noise is little outer rotor brushless DC motor directly drives diagonal cutting saw.It comprises diagonal cutting saw body, and described diagonal cutting saw body is provided with saw blade, motor and power brick, is provided with head-shield outside described saw blade, described motor is arranged on head-shield, be provided with armature spindle in described motor, described saw blade is fixedly connected with armature spindle, and described power brick is connected with motor.The beneficial effects of the utility model are: do not need, by traditional mechanical transmission structure such as other gears, to effectively raise transmission efficiency, greatly reduce noise simultaneously, improve the useful life of this motor.
Description
Technical field
The utility model relates to diagonal cutting saw correlative technology field, refers in particular to a kind of outer rotor brushless DC motor and directly drives diagonal cutting saw.
Background technology
Mitre saw major function is cut workpiece, can cut out the angle between 30-90 degree, the cutting of 45 degree that the most frequently used is.Accurately, cross section is smooth, handling safety in mitre saw cutting.Existing conventional diagonal cutting saw is generally series excited machine, the stator of series excited machine is made up of salient pole iron core and excitation winding, rotor is made up of non-salient pole iron core, armature winding, commutator and rotating shaft etc., series loop is formed by brush and commutator between excitation winding and armature winding, this series excited machine is by gear or other mechanical drive mode transmissions, and adopt this kind of kind of drive can reduce transmission efficiency to a certain extent, add noise pollution, thus reduce useful life.
Chinese patent Authorization Notice No.: CN 201279608Y, authorized announcement date on July 29th, 2009, discloses a kind of diagonal cutting saw, comprising: workbench, for supporting cut workpiece; First strutting piece, connects with described workbench, and described first strutting piece defines the longitudinal axis extended along the longitudinal direction; Second strutting piece, connects with described first strutting piece; Saw, is connected by a said pivot with described second strutting piece, and it comprises motor and the saw blade by motor rotary actuation; Matching mechanism, between described first strutting piece and the second strutting piece, its can start to cause the second strutting piece to seesaw relative to the first strutting piece.The weak point of this utility model is, what motor adopted is series excited machine, and by gear or other mechanical drive mode transmissions, and adopt this kind of kind of drive can reduce transmission efficiency to a certain extent, add noise pollution, thus reduce useful life.
Utility model content
The utility model there is above-mentioned deficiency to overcome in prior art, provides that a kind of transmission efficiency is high and noise is little outer rotor brushless DC motor directly drives diagonal cutting saw.
To achieve these goals, the utility model is by the following technical solutions:
A kind of outer rotor brushless DC motor directly drives diagonal cutting saw, comprise diagonal cutting saw body, described diagonal cutting saw body is provided with saw blade, motor and power brick, head-shield is provided with outside described saw blade, described motor is arranged on head-shield, be provided with armature spindle in described motor, described saw blade is fixedly connected with armature spindle, and described power brick is connected with motor.In this diagonal cutting saw, saw blade is directly fixedly connected with the armature spindle in motor, so the rotation of motor directly drives saw blade to rotate by armature spindle, does not need by traditional mechanical transmission structure such as other gears, effectively raise transmission efficiency, greatly reduce noise simultaneously.
As preferably, described motor comprises protecgulum, rotor, stator, rear bearing room, motor housing, controller and bonnet, described protecgulum is fixedly connected with head-shield by set bolt, described stator is fixed by protecgulum and rear bearing room, described rotor matches with stator, described protecgulum and motor housing coordinate rotor and seal stator, described controller is arranged on motor housing, controller seals by described motor housing and bonnet cooperation, described protecgulum is provided with fore bearing, described rear bearing room is provided with rear bearing, described armature spindle is arranged on fore bearing and rear bearing.By the Seal Design of motor housing and bonnet, effective protection motor, not by environmental pollution, effectively raises the useful life of motor.
As preferably, described stator comprises stator core and stator winding, and described stator core is fixed by protecgulum and rear bearing room, and described stator winding is arranged on stator core.
As preferably, described rotor comprises external rotor, armature spindle and motor casing, and described external rotor is placed in the outside of stator and is arranged on motor casing, and the right-hand member of described armature spindle and motor casing interference fit, the left end of described armature spindle is fixedly connected with saw blade.
As preferably, the junction of described saw blade and armature spindle is provided with outer plate and clip plate, and described saw blade is placed between outer plate and clip plate, and described saw blade is fixed on the left end of armature spindle by outer plate and clip plate fastening bolt.Effective protection armature spindle by the wearing and tearing of saw blade, does not improve the useful life of this motor.
The beneficial effects of the utility model are: do not need, by traditional mechanical transmission structure such as other gears, to effectively raise transmission efficiency, greatly reduce noise simultaneously, improve the useful life of this motor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the cross-sectional view of motor.
In figure: 1. diagonal cutting saw body, 2. power brick, 3. head-shield, 4. motor, 5. fastening bolt, 6. outer plate, 7. saw blade, 8. clip plate, 9. protecgulum, 10. fore bearing, 11. set bolts, 12. external rotors, 13. stator cores, 14. armature spindles, 15. motor casings, 16. stator windings, 17. rear bearing rooms, 18. rear bearings, 19. motor housings, 20. controllers, 21. bonnets.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
In embodiment described as shown in Figure 1, Figure 2, a kind of outer rotor brushless DC motor directly drives diagonal cutting saw, comprise diagonal cutting saw body 1, diagonal cutting saw body 1 is provided with saw blade 7, motor 4 and power brick 2, be provided with head-shield 3 outside saw blade 7, motor 4 is arranged on head-shield 3, is provided with armature spindle 14 in motor 4, saw blade 7 is fixedly connected with armature spindle 14, and power brick 2 is connected with motor 4.Wherein: saw blade 7 is provided with outer plate 6 and clip plate 8 with the junction of armature spindle 14, and saw blade 7 is placed between outer plate 6 and clip plate 8, and saw blade 7 is fixed on the left end of armature spindle 14 by outer plate 6 and clip plate 8 fastening bolt 5.
As shown in Figure 2, motor 4 comprises protecgulum 9, rotor, stator, rear bearing room 17, motor housing 19, controller 20 and bonnet 21, protecgulum 9 is fixedly connected with head-shield 3 by set bolt 11, stator is fixed by protecgulum 9 and rear bearing room 17, rotor matches with stator, protecgulum 9 and motor housing 19 coordinate rotor and seal stator, controller 20 is arranged on motor housing 19, motor housing 19 and bonnet 21 coordinate and are sealed by controller 20, protecgulum 9 is provided with fore bearing 10, rear bearing room 17 is provided with rear bearing 18, armature spindle 14 is arranged on fore bearing 10 and rear bearing 18.Wherein: stator comprises stator core 13 and stator winding 16, stator core 13 is fixed by protecgulum 9 and rear bearing room 17, and stator winding 16 is arranged on stator core 13; Rotor comprises external rotor 12, armature spindle 14 and motor casing 15, and external rotor 12 is placed in the outside of stator and is arranged on motor casing 15, and the right-hand member of armature spindle 14 and motor casing 15 interference fit, the left end of armature spindle 14 is fixedly connected with saw blade 7.
Armature spindle 14 right-hand member of motor 4 and motor casing 15 interference close-fitting, the rotation of armature spindle 14 drives the rotation of motor casing 15, thus external rotor 12 is round stator rotation, external rotor 12 is made up of permeability magnetic material, iron core etc., itself and armature spindle 14, motor casing 15 form the rotor of motor 4, stator core 13, stator winding 16 form the stator of motor 4, stator is supported by protecgulum 9, rear bearing room 17 and is fixed, protecgulum 9 hold-down screw is fixed on head-shield 3, and the fore bearing 10 of the two ends protecgulum 9 of armature spindle 14, the rear bearing 18 of rear bearing room 17 support.Saw blade 7 fastening bolt 5, outer plate 6, clip plate 8 are fixed on the left end of armature spindle 14.Controller 20 is used for controlling motor 4, and motor housing 19, bonnet 21 are closed controller 20, and power brick 2 provides power supply to motor 4.The saw blade 7 of this diagonal cutting saw, by armature spindle 14 Direct driver of motor 4, reduces the mechanical transmission structure that gear etc. is traditional, improves transmission efficiency, greatly reduce noise, long service life.
Claims (5)
1. an outer rotor brushless DC motor directly drives diagonal cutting saw, it is characterized in that, comprise diagonal cutting saw body (1), described diagonal cutting saw body (1) is provided with saw blade (7), motor (4) and power brick (2), described saw blade (7) outside is provided with head-shield (3), described motor (4) is arranged on head-shield (3), armature spindle (14) is provided with in described motor (4), described saw blade (7) is fixedly connected with armature spindle (14), and described power brick (2) is connected with motor (4).
2. a kind of outer rotor brushless DC motor according to claim 1 directly drives diagonal cutting saw, it is characterized in that, described motor (4) comprises protecgulum (9), rotor, stator, rear bearing room (17), motor housing (19), controller (20) and bonnet (21), described protecgulum (9) is fixedly connected with head-shield (3) by set bolt (11), described stator is fixed by protecgulum (9) and rear bearing room (17), described rotor matches with stator, described protecgulum (9) and motor housing (19) coordinate rotor and seal stator, described controller (20) is arranged on motor housing (19), controller (20) seals by described motor housing (19) and bonnet (21) cooperation, described protecgulum (9) is provided with fore bearing (10), described rear bearing room (17) is provided with rear bearing (18), described armature spindle (14) is arranged on fore bearing (10) and rear bearing (18).
3. a kind of outer rotor brushless DC motor according to claim 2 directly drives diagonal cutting saw, it is characterized in that, described stator comprises stator core (13) and stator winding (16), described stator core (13) is fixed by protecgulum (9) and rear bearing room (17), and described stator winding (16) is arranged on stator core (13).
4. a kind of outer rotor brushless DC motor according to claim 2 directly drives diagonal cutting saw, it is characterized in that, described rotor comprises external rotor (12), armature spindle (14) and motor casing (15), described external rotor (12) is placed in the outside of stator and is arranged on motor casing (15), the right-hand member of described armature spindle (14) and motor casing (15) interference fit, the left end of described armature spindle (14) is fixedly connected with saw blade (7).
5. a kind of outer rotor brushless DC motor according to claim 1 or 4 directly drives diagonal cutting saw, it is characterized in that, described saw blade (7) is provided with outer plate (6) and clip plate (8) with the junction of armature spindle (14), described saw blade (7) is placed between outer plate (6) and clip plate (8), and described saw blade (7) is fixed on the left end of armature spindle (14) by outer plate (6) and clip plate (8) fastening bolt (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693645.3U CN204295054U (en) | 2014-11-19 | 2014-11-19 | A kind of outer rotor brushless DC motor directly drives diagonal cutting saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693645.3U CN204295054U (en) | 2014-11-19 | 2014-11-19 | A kind of outer rotor brushless DC motor directly drives diagonal cutting saw |
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| Publication Number | Publication Date |
|---|---|
| CN204295054U true CN204295054U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420693645.3U Active CN204295054U (en) | 2014-11-19 | 2014-11-19 | A kind of outer rotor brushless DC motor directly drives diagonal cutting saw |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014152A (en) * | 2015-08-05 | 2015-11-04 | 鄢文琼 | Numerical control metal circular sawing machine driven by arc-shaped and disk-shaped permanent magnet synchronous servo linear motors |
| CN106313333A (en) * | 2015-06-30 | 2017-01-11 | 南京德朔实业有限公司 | Cutting tool |
| CN107322087A (en) * | 2017-07-13 | 2017-11-07 | 佛山欧亚特机械设备有限公司 | A kind of 45 ° of double-headed cutting machines |
| EP3275582A3 (en) * | 2016-07-27 | 2018-05-09 | TTI (Macao Commercial Offshore) Limited | Miter saw |
-
2014
- 2014-11-19 CN CN201420693645.3U patent/CN204295054U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106313333A (en) * | 2015-06-30 | 2017-01-11 | 南京德朔实业有限公司 | Cutting tool |
| CN106313333B (en) * | 2015-06-30 | 2021-06-18 | 南京德朔实业有限公司 | Cutting tool |
| CN105014152A (en) * | 2015-08-05 | 2015-11-04 | 鄢文琼 | Numerical control metal circular sawing machine driven by arc-shaped and disk-shaped permanent magnet synchronous servo linear motors |
| CN105014152B (en) * | 2015-08-05 | 2017-06-23 | 湖北富升智能装备股份有限公司 | The numerical control metal annular sawing machine that arc and dish type permanent magnet synchronous servo linear electric motors drive |
| EP3275582A3 (en) * | 2016-07-27 | 2018-05-09 | TTI (Macao Commercial Offshore) Limited | Miter saw |
| US10543542B2 (en) | 2016-07-27 | 2020-01-28 | Tti (Macao Commercial Offshore) Limited | Miter saw |
| CN107322087A (en) * | 2017-07-13 | 2017-11-07 | 佛山欧亚特机械设备有限公司 | A kind of 45 ° of double-headed cutting machines |
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| GR01 | Patent grant |