CN105328263A - Round saw - Google Patents
Round saw Download PDFInfo
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- CN105328263A CN105328263A CN201410238482.4A CN201410238482A CN105328263A CN 105328263 A CN105328263 A CN 105328263A CN 201410238482 A CN201410238482 A CN 201410238482A CN 105328263 A CN105328263 A CN 105328263A
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Abstract
The invention discloses a round saw. The round saw comprises a machine shell (7) and a motor shell (1) which is arranged in the machine shell (7) and fixedly connected with the lateral wall of the machine shell (7). A high-power-density brushless motor is arranged in the motor shell (1), and a controller (5) of the high-power-density brushless motor is arranged in the machine shell (7). The high-power-density brushless motor comprises a rotor shaft (2) rotationally arranged in the motor shell (1), the rotor shaft (2) and a driving shaft of an electric saw cutting blade (6) of the round saw are coaxial and are of an integrated structure, and the axis of the rotor shaft (2) is perpendicular to the plane where the electric saw cutting blade (6) is located and passes through the circle center of the electric saw cutting blade (6). According to the round saw, generation of carbon powder is avoided, and environmental pollution is avoided. The situation that a transmission device is arranged in the machine shell is avoided, the service life is prolonged, energy consumption is reduced, output efficiency is improved, noise and vibration are lowered, the trouble of engagement installation of transmission gears is saved, the size and weight are reduced, and the round saw is convenient to assemble.
Description
Technical field
The present invention relates to electric saw equipment technical field, particularly a kind of annular saw.
Background technology
Annular saw is a kind of electric tool, and polished fabric or other article complete polishing effect by the polishing disk of annular saw.
Please refer to Fig. 1, Fig. 1 is a kind of structural representation of annular saw of the prior art.
Wherein, annular saw is made up of the motor (comprising stator 03, rotor 04, motor shaft 05 and carbon brush 07) of casing 01, output shaft 02, the travelling gear 08 be arranged on output shaft 02, the electric saw cutting blade 06 being arranged at output shaft 02 end and band carbon brush.Motor is arranged in casing 01, and motor shaft 05 is for gear shaft or arrange gear in its end, and output shaft 02 and motor shaft 05 are engaged by travelling gear, and then the electric saw cutting blade 06 being arranged at output shaft 02 end by driven by motor rotates, complete operation.
But current annular saw generally uses series excited machine, it is with the structure of carbon brush 07, needs gear drive to realize the change of transmission direction and rotating speed between motor shaft 05 and output shaft 02.This makes the energy loss of annular saw large, reduce the delivery efficiency of instrument, and the wearing and tearing of carbon brush 07 and travelling gear directly affects the service life of annular saw, and carbon brush 07 weares and teares, generation carbon dust, causes certain pollution to environment; Parts in annular saw are more, and intermeshing travelling gear inevitably produces larger noise and vibration in the process of passing on Gong, and are not easy to the assembling of annular saw.
Therefore, how to improve delivery efficiency and service life, avoid environmental pollution, reduce noise and vibration, being convenient to the assembling of annular saw, is the art personnel problem demanding prompt solutions.
Summary of the invention
In view of this, the invention provides a kind of annular saw, to improve delivery efficiency and service life, avoid environmental pollution, reduce noise and vibration, be convenient to the assembling of annular saw.
For achieving the above object, the invention provides following technical scheme:
A kind of annular saw, comprise casing, also comprise and being arranged in described casing and the motor casing be fixedly connected with the sidewall of described casing, be provided with high power density brushless electric machine in described motor casing, the controller of described high power density brushless electric machine is arranged in described casing;
Described high power density brushless electric machine comprises the armature spindle rotating and be arranged at described motor casing, and the driving shaft of the electric saw cutting blade of described armature spindle and described annular saw coaxially arranges and is integral type structure;
The axes normal of described armature spindle is in described electric saw cutting blade place plane and through the center of circle of described electric saw cutting blade.
Preferably, in above-mentioned annular saw, also comprise the fan be arranged on described armature spindle.
Preferably, in above-mentioned annular saw, described fan is arranged at the side of described rotor core near described electric saw cutting blade; Or described fan is arranged at the side of described rotor core away from described electric saw cutting blade; Or the quantity of described fan is two, one is positioned at the side of described rotor core near described electric saw cutting blade, and another is positioned at the side of described rotor core away from described electric saw cutting blade.
Preferably, in above-mentioned annular saw, described high power density brushless electric machine is without Hall internal rotor high power density brushless electric machine;
Described high power density brushless electric machine also comprises: be sheathed on the rotor core outside described armature spindle, is arranged at the stator outside described rotor core, is arranged at the permanent magnet between described stator and described rotor core.
Preferably, in above-mentioned annular saw, described stator comprises stator core, multiple cold air duct being wound in the stator enamelled wire group in described stator core and being arranged in described stator core.
Preferably, in above-mentioned annular saw, described cold air duct is made up of the gap between adjacent two described stator enamelled wire groups and the gap between described stator core and described rotor core.
Preferably, in above-mentioned annular saw, also comprise power line for being connected with extraneous power frequency AC and the rectification be arranged in described casing and filter;
Insulating sleeve is provided with between described rotor core and described armature spindle.
Preferably, in above-mentioned annular saw, described motor casing is plastic motor shell.
Preferably, in above-mentioned annular saw, the power supplier driving described high power density brushless electric machine to run is power brick.
Preferably, in above-mentioned annular saw, described power brick is arranged in described casing; Or described power brick is arranged at outside described casing, described casing is provided with the interface be connected with described power brick.
As can be seen from above-mentioned technical scheme, annular saw provided by the invention, driving electric saw cutting blade to rotate by arranging high power density brushless electric machine, effectively improve the service life of device; And, owing to arranging high power density brushless electric machine, the driving shaft of armature spindle and electric saw cutting blade is coaxially arranged, and armature spindle and electric saw cutting blade are set to integral structure, avoid and transmission device is set in casing, further increase service life, further, avoid carbon dust to produce, and then avoid environmental pollution, reduce energy loss, improve delivery efficiency.Because armature spindle and electric saw cutting blade are integral type structure, effectively prevent the engagement between travelling gear, and then reduce the noise and vibration that produce because of gear drive.And, because electric saw cutting blade is disk, the axes normal of armature spindle in the operating surface of electric saw cutting blade and the axis of armature spindle through the center of circle of electric saw cutting blade, make the smooth rotation of electric saw cutting blade, reduce the noise and vibration that produce because electric saw cutting blade rotates.And the controller of high power density brushless electric machine is arranged in casing, effectively prevent controller external and cause large and make unhandy situation because taking up an area space, so that the use of annular saw, high power density brushless electric machine is arranged in motor casing, the armature spindle that high power density brushless electric machine is established is set up in motor casing, and controller is arranged in casing, after high power density brushless electric machine and controller are communicated to connect, again motor casing and casing are mounted opposite, avoid the loaded down with trivial details of travelling gear engagement installation, effectively reduce volume and the weight of annular saw, effectively facilitate the assembling of annular saw.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of annular saw of the prior art;
Wherein,
Casing-01, output shaft-02, stator-03, rotor-04, motor shaft-05, electric saw cutting blade-06, carbon brush-07;
The structural representation of the annular saw that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the high power density brushless electric machine that Fig. 3 provides for the embodiment of the present invention.
Wherein,
Motor casing-1, armature spindle-2, rotor core-3, stator-4, stator core-41, stator enamelled wire group-42, cold air duct-43, controller-5, electric saw cutting blade-6, casing-7, permanent magnet-8, fan-9, insulating sleeve-10.
Detailed description of the invention
The invention discloses a kind of annular saw, to improve delivery efficiency and service life, avoid environmental pollution, reduce noise and vibration, be convenient to the assembling of annular saw.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 2, the structural representation of the annular saw that Fig. 2 provides for the embodiment of the present invention.
Embodiments provide a kind of annular saw, comprise casing 7, also comprise and being arranged in casing 7 and the motor casing 1 be fixedly connected with the sidewall of casing 7, be provided with high power density brushless electric machine in motor casing 1, the controller 5 of high power density brushless electric machine is arranged in casing 7; High power density brushless electric machine comprises the armature spindle 2 rotating and be arranged at motor casing 1, and armature spindle 2 and the driving shaft of the electric saw cutting blade 6 of annular saw coaxially arrange and be integral type structure; The axes normal of armature spindle 2 is in electric saw cutting blade 6 place plane and through the center of circle of electric saw cutting blade 6.
The annular saw that the embodiment of the present invention provides, driving electric saw cutting blade 6 to rotate by arranging high power density brushless electric machine, effectively improve the service life of device; And, owing to arranging high power density brushless electric machine, the driving shaft of armature spindle 2 with electric saw cutting blade 6 is coaxially arranged, and armature spindle 2 and electric saw cutting blade 6 are set to integral structure, avoid and transmission device is set in casing 7, further increase service life, further, avoid carbon dust to produce, and then avoid environmental pollution, reduce energy loss, improve delivery efficiency.Because armature spindle 2 and electric saw cutting blade 6 are integral type structure, effectively prevent the engagement between travelling gear, and then reduce the noise and vibration that produce because of gear drive.And, because electric saw cutting blade 6 is disk, the axes normal of armature spindle 2 in the operating surface of electric saw cutting blade 6 and the axis of armature spindle 2 through the center of circle of electric saw cutting blade 6, make the smooth rotation of electric saw cutting blade 6, reduce the noise and vibration that produce because electric saw cutting blade 6 rotates.And the controller 5 of high power density brushless electric machine is arranged in casing 7, effectively prevent controller 5 external and cause large and make unhandy situation because taking up an area space, so that the use of annular saw, high power density brushless electric machine is arranged in motor casing 1, the armature spindle 2 that high power density brushless electric machine is established is set up in motor casing 1, and controller 5 is arranged in casing 7, after high power density brushless electric machine and controller 5 are communicated to connect, again motor casing 1 and casing 7 are mounted opposite, avoid the loaded down with trivial details of travelling gear engagement installation, effectively reduce volume and the weight of annular saw, effectively facilitate the assembling of annular saw.
Refer to following data:
The brushless electric machine of table 1 series excited machine of the prior art and the embodiment of the present invention compare data
Further, as can be seen from table, the annular saw in the embodiment of the present invention compared with prior art, improves delivery efficiency and the service life of motor, reduces noise.
High power density brushless electric machine in the annular saw that the embodiment of the present invention provides is overheated and affect service life, also comprises the fan 9 be arranged on armature spindle 2.In the process that high power density brushless electric machine runs, drive fan 9 to rotate while armature spindle 2 rotates, thus heat discharging operation is carried out to high power density brushless electric machine.
In the present embodiment, fan 9 is arranged at the side of rotor core 3 near electric saw cutting blade 6; Or fan 9 is arranged at the side of rotor core 3 away from electric saw cutting blade 6; Or the quantity of fan 9 is two, one is positioned at the side of rotor core 3 near electric saw cutting blade 6, and another is positioned at the side of rotor core 3 away from electric saw cutting blade 6.To introduce no longer in detail and all within protection domain at this.
For the ease of air flowing, air inlet and air outlet can be set on casing 7, so that outside air enters casing 7 by air inlet and discharged by the air outlet of casing 7 after too high power density brushless electric machine under the effect of fan.
Further, in order to ensure the heat radiation of controller 5, the position of air inlet and air outlet can be regulated, make outside air through controller 5 and high power density brushless electric machine under the effect of fan 9, so that dispel the heat to controller 5 while to the heat radiation of high power density brushless electric machine.
The inwall of motor casing 1 is provided with the wind loop between fan 9 and high power density brushless electric machine, by arranging wind loop, and the flow direction of controlled cooling model wind.In an embodiment, the air inlet of casing 7 is arranged at the side (in Fig. 2 left side) away from electric saw cutting blade 6, and the air inlet of casing 7 is arranged at the side (in Fig. 2 right side) near electric saw cutting blade 6.Under the effect of fan 9, make extraneous cooling air enter from the air inlet of casing 7, and successively through controller and high power density brushless electric machine, by wind loop endoporus by discharging from the air outlet of casing 7 right-hand member again.By arranging wind loop, ensure that the flow direction of cooling air.
As shown in Figure 2, because the axes normal of armature spindle 2 is in the operating surface of electric saw cutting blade 6, preferably the driving shaft of armature spindle 2 with electric saw cutting blade 6 is coaxially arranged.In order to improve the connective stability of the driving shaft of armature spindle 2 and electric saw cutting blade 6 and conveniently install, armature spindle 2 is integral type structure with the driving shaft of electric saw cutting blade 6.Also the driving shaft of armature spindle 2 with electric saw cutting blade 6 can be connected by jockeys such as shaft couplings, introduce no longer in detail at this.
In the present embodiment, high power density brushless electric machine is without Hall internal rotor high power density brushless electric machine; High power density brushless electric machine also comprises: be sheathed on the rotor core 3 outside armature spindle 2, is arranged at the stator 4 outside rotor core 3, is arranged at the permanent magnet 8 between stator 4 and rotor core 3.Also outer rotor brushless DC motor can be applied in the annular saw that the embodiment of the present invention provides as high power density brushless electric machine.
Wherein, the permanent magnet material of preferred high magnetic as permanent magnet 8, to improve the power of high power density brushless electric machine.
Because temperature and current density are inversely proportional to, the efficiently radiates heat of stator 4 decides the power density of motor.As shown in Figure 3, stator 4 comprises stator core 41, multiple cold air duct 43 being wound in the stator enamelled wire group 42 in stator core 41 and being arranged in stator core 41.By arranging cold air duct 43, so that air flowing, effectively reduce the temperature of stator enamelled wire group 42.Due to, and then improve current density, guarantee the high power density of the high power density brushless electric machine in the present embodiment, that is, the power of the motor generation of unit volume is higher.
Cold air duct 43 is made up of the gap between adjacent two stator enamelled wire groups 42 and the gap between stator core 41 and rotor core 3.Stator enamelled wire is wound around on stator core 41, forms stator enamelled wire group 42.In winding process, there is gap between adjacent two stator enamelled wire groups 42, flow for air, and, gap between adjacent two stator enamelled wire groups 42 is communicated with the gap between stator core 41 with rotor core 3, further enhances air flowing, improves cooling effect.
As tables of data display below, with the diameter of stator 4 for 55mm-65mm, stator height is the high power density brushless electric machine of 50mm is example:
Data are compared with of the present invention in table 2 prior art
It can thus be appreciated that, the power output of the unit volume of the high power density brushless electric machine that the embodiment of the present invention provides is greater than the power output of the brushless unit volume of high power density of the prior art, but, power is greater than the power of high power density brushless electric machine of the prior art, therefore, the power that the motor of its unit volume produces is higher, to ensure the high power density of the high power density brushless electric machine that the embodiment of the present invention provides.
The annular saw that the embodiment of the present invention provides can by DC low voltage power supply or industrial frequency AC electric drive.Being connected with extraneous power frequency AC by arranging power line, running to drive high power density brushless electric machine.
What because high power density brushless electric machine is direct current generator, extraneous power frequency AC supplied is industrial-frequency alternating current.When annular saw is connected with extraneous power supply by power line, increase and decrease is needed to be galvanic rectification and filter by AC conversion.That is, in the present embodiment, annular saw also comprises power line for being connected with extraneous power supply and the rectification be arranged in casing 7 and filter, and wherein, rectification and filter can directly be integrated on controller 5, also can arrange separately.The industrial-frequency alternating current of extraneous power supply supply introduces annular saw by power line, becomes direct current to the supply of high power density brushless electric machine after over commutation and filter.Wherein, rectification and filter are containing a bulky capacitor.Current conventional power frequency AC is 220-240V or 110-127V, by regulating rectification and filter to adapt to different power frequency ACs, and then expands the territory of use of the annular saw that the embodiment of the present invention provides.
Because the current strength of extraneous power frequency AC is comparatively large, preferably, between rotor core 3 and armature spindle 2, be provided with insulating sleeve 10.
Preferably, the motor casing 1 that the embodiment of the present invention provides is plastic motor shell, with the double insulated requirement of implementation tool, further increases safety in utilization.
But because needs arrange power line, hinder the operation of annular saw, therefore, in the present embodiment, preferably, the power supplier driving high power density brushless electric machine to run is power brick.Due to power brick supply is direct current, powers directly to high power density brushless electric machine to realize power brick.Battery pack after charging, in powering to high power density brushless electric machine, effectively prevent the operation that annular saw is connected by power line with extraneous electric supply installation, it also avoid in operating process the situation hindering annular saw to operate because of power line.
Further, power brick is arranged in casing 7.Effectively prevent power brick external and affect the situation that annular saw normally uses.
Also power brick can be arranged at outside casing 7, casing 7 be provided with the interface be connected with power brick.Power brick is connected with casing 7 by interface, and makes it conduct electricity with high power density brushless electric machine to be connected.
For the ease of dismounting and the maintenance of high power density brushless electric machine, casing 7 and motor casing 1 removably connect.Namely, when casing 7 is with motor casing 1 relative separation, high power density brushless electric machine is installed in motor casing 1, then controller 5 is installed in casing 7, after the line completed between controller 5 with high power density brushless electric machine is connected, casing 7 and motor casing 1 are mounted opposite.And when needs are changed or keep in repair high power density brushless electric machine, only need high power density brushless electric machine or the controller 5 that casing 7 and motor casing 1 relative separation can be keeped in repair its inside.
As shown in Figure 2, casing 7 and motor casing 1 be bonding, weld, clamping or screw connect.Only need the bonding strength reaching casing 7 and motor casing 1.
In the present embodiment, electric saw cutting blade 6 is high-speed steel woodworking saw blade, carbide alloy woodworking saw blade or hard alloy metal saw blade.Also can be set to other types, introduce no longer one by one at this.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an annular saw, comprise casing (7), it is characterized in that, also comprise and being arranged in described casing (7) and the motor casing (1) be fixedly connected with the sidewall of described casing (7), described motor casing is provided with high power density brushless electric machine in (1), and the controller (5) of described high power density brushless electric machine is arranged in described casing (7);
Described high power density brushless electric machine comprises the armature spindle (2) that rotation is arranged at described motor casing (1), and described armature spindle (2) and the driving shaft of the electric saw cutting blade (6) of described annular saw coaxially arrange and be integral type structure;
The axes normal of described armature spindle (2) is in described electric saw cutting blade (6) place plane and through the center of circle of described electric saw cutting blade (6).
2. annular saw as claimed in claim 1, is characterized in that, also comprise the fan (9) be arranged on described armature spindle (2).
3. annular saw as claimed in claim 2, is characterized in that, described fan (9) is arranged at the side of described rotor core (3) near described electric saw cutting blade (6); Or described fan (9) is arranged at the side of described rotor core (3) away from described electric saw cutting blade (6); Or, the quantity of described fan (9) is two, one is positioned at the side of described rotor core (3) near described electric saw cutting blade (6), and another is positioned at the side of described rotor core (3) away from described electric saw cutting blade (6).
4. annular saw as claimed in claim 1, it is characterized in that, described high power density brushless electric machine is without Hall internal rotor high power density brushless electric machine;
Described high power density brushless electric machine also comprises: the rotor core (3) being sheathed on described armature spindle (2) outside, be arranged at the stator (4) in described rotor core (3) outside, be arranged at the permanent magnet (8) between described stator (4) and described rotor core (3).
5. annular saw as claimed in claim 4, it is characterized in that, described stator (4) comprises stator core (41), multiple cold air duct (43) being wound in the stator enamelled wire group (42) in described stator core (41) and being arranged in described stator core (41).
6. annular saw as claimed in claim 5, it is characterized in that, described cold air duct (43) is made up of the gap between adjacent two described stator enamelled wire groups (42) and the gap between described stator core (41) and described rotor core (3).
7. annular saw as claimed in claim 1, is characterized in that, also comprises the power line for being connected with extraneous power frequency AC and the rectification be arranged in described casing (7) and filter;
Insulating sleeve (10) is provided with between described rotor core (3) and described armature spindle (2).
8. annular saw as claimed in claim 7, it is characterized in that, described motor casing (1) is plastic motor shell.
9. annular saw as claimed in claim 1, it is characterized in that, the power supplier driving described high power density brushless electric machine to run is power brick.
10. annular saw as claimed in claim 9, it is characterized in that, described power brick is arranged in described casing (7), or, described power brick is arranged at described casing (7) outward, described casing (7) is provided with the interface be connected with described power brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410238482.4A CN105328263A (en) | 2014-05-30 | 2014-05-30 | Round saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410238482.4A CN105328263A (en) | 2014-05-30 | 2014-05-30 | Round saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105328263A true CN105328263A (en) | 2016-02-17 |
Family
ID=55279137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410238482.4A Pending CN105328263A (en) | 2014-05-30 | 2014-05-30 | Round saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105328263A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208589A (en) * | 2016-07-26 | 2016-12-07 | 南通市润泽磁业有限公司 | Brushless electric machine for aluminum wood electric saw |
| CN106230145A (en) * | 2016-07-26 | 2016-12-14 | 南通市润泽磁业有限公司 | Aluminum wood electric saw |
| CN106253531A (en) * | 2016-08-15 | 2016-12-21 | 南通市润泽磁业有限公司 | Aluminum wood electric saw brushless electric machine |
| CN106816974B (en) * | 2017-02-27 | 2023-03-21 | 百恒石油装备有限公司 | High slip frequency-variable speed-regulating motor for driving beam-pumping unit |
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| JPH06190628A (en) * | 1992-12-22 | 1994-07-12 | Makita Corp | Circular saw device |
| CN1751832A (en) * | 2004-09-24 | 2006-03-29 | 株式会社牧田 | Cutting machine |
| CN101362363A (en) * | 2007-08-10 | 2009-02-11 | 株式会社牧田 | Cutting tool |
| US20090165312A1 (en) * | 2007-11-22 | 2009-07-02 | Gunter Haas | Hand-held power tool |
| CN102820718A (en) * | 2011-06-08 | 2012-12-12 | 株式会社牧田 | Electric tools |
| CN103402682A (en) * | 2011-02-28 | 2013-11-20 | 株式会社牧田 | Cutting tool |
| GB2504277A (en) * | 2012-07-23 | 2014-01-29 | Black & Decker Inc | Saw with Fan Cooling Drive Belt |
| CN103659459A (en) * | 2012-09-26 | 2014-03-26 | 株式会社牧田 | Electric tools |
| CN203863137U (en) * | 2014-05-30 | 2014-10-08 | 浙江绿动电机科技有限公司 | Circular saw |
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- 2014-05-30 CN CN201410238482.4A patent/CN105328263A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06190628A (en) * | 1992-12-22 | 1994-07-12 | Makita Corp | Circular saw device |
| CN1751832A (en) * | 2004-09-24 | 2006-03-29 | 株式会社牧田 | Cutting machine |
| CN101362363A (en) * | 2007-08-10 | 2009-02-11 | 株式会社牧田 | Cutting tool |
| US20090165312A1 (en) * | 2007-11-22 | 2009-07-02 | Gunter Haas | Hand-held power tool |
| CN103402682A (en) * | 2011-02-28 | 2013-11-20 | 株式会社牧田 | Cutting tool |
| CN102820718A (en) * | 2011-06-08 | 2012-12-12 | 株式会社牧田 | Electric tools |
| GB2504277A (en) * | 2012-07-23 | 2014-01-29 | Black & Decker Inc | Saw with Fan Cooling Drive Belt |
| CN103659459A (en) * | 2012-09-26 | 2014-03-26 | 株式会社牧田 | Electric tools |
| CN203863137U (en) * | 2014-05-30 | 2014-10-08 | 浙江绿动电机科技有限公司 | Circular saw |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208589A (en) * | 2016-07-26 | 2016-12-07 | 南通市润泽磁业有限公司 | Brushless electric machine for aluminum wood electric saw |
| CN106230145A (en) * | 2016-07-26 | 2016-12-14 | 南通市润泽磁业有限公司 | Aluminum wood electric saw |
| CN106253531A (en) * | 2016-08-15 | 2016-12-21 | 南通市润泽磁业有限公司 | Aluminum wood electric saw brushless electric machine |
| CN106816974B (en) * | 2017-02-27 | 2023-03-21 | 百恒石油装备有限公司 | High slip frequency-variable speed-regulating motor for driving beam-pumping unit |
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Application publication date: 20160217 |
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