CN203871988U - Desk type cutting tool - Google Patents
Desk type cutting tool Download PDFInfo
- Publication number
- CN203871988U CN203871988U CN201420288546.7U CN201420288546U CN203871988U CN 203871988 U CN203871988 U CN 203871988U CN 201420288546 U CN201420288546 U CN 201420288546U CN 203871988 U CN203871988 U CN 203871988U
- Authority
- CN
- China
- Prior art keywords
- cutting tool
- desk
- top cutting
- stator
- output disc
- 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
- 238000005520 cutting process Methods 0.000 title claims abstract description 57
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 239000011449 brick Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Sawing (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a desk type cutting tool comprising a machine shell. The internal part of the machine shell is provided with a brushless motor and a controller. The brushless motor comprises a motor rotating shaft. The external end part of the motor rotating shaft is sleeved with an output disc sheet in a linkable way. The axis of the motor rotating shaft is perpendicular to the operation surface of the output disc sheet through the center of the circle of the output disc sheet. The external circumferential part of the internal end of the motor rotating shaft is coaxially sleeved with a rotor iron core. The external circumferential surface of the rotor iron core is provided with a permanent magnet. The internal part of the machine shell is also provided with a stator which is matched with the permanent magnet. The desk type cutting tool is simple and compact in structure, relatively long in the service life and relatively high in transmission efficiency.
Description
Technical field
The utility model relates to machining apparatus technical field, particularly a kind of desk-top cutting tool.
Background technology
Existing desk-top cutting tool, its type of drive is generally motor and drives, motor adopts series excited machine conventionally, this kind of series excited machine has carbon brush structure, series excited machine is realized electric current commutation by carbon brush simultaneously, carbon brush and rotor wearing and tearing are one of bottlenecks of tool life, and carbon brush abrasion generation carbon dust, and environment has been caused to certain pollution; On the other hand, in order to meet the operating mode needs in its practical work process, the transmission direction that conventionally need to adopt gear drive to realize between its motor shaft and output shaft changes and deceleration object.But this kind of assembly structure is owing to existing the driving members such as more gear, transmission efficiency is low, and causes the required assembly space of its entirety larger, and assembly structure is comparatively complicated; Gear is vulnerable part simultaneously, and the existence of more gear driving member has caused the whole service life of desk-top cutting tool to affect adversely.
Utility model content
The purpose of this utility model is to provide a kind of desk-top cutting tool, this desk-top cutting tool simple and compact for structure, and useful life is longer, and transmission efficiency is higher.
For solving the problems of the technologies described above, the utility model provides a kind of desk-top cutting tool, comprise casing, the inside of described casing is provided with brushless electric machine and controller, described brushless electric machine comprises machine shaft, be set with output disc, the axis of described machine shaft is perpendicular to the center of circle of operating surface and the described output disc of process of described output disc the outer end linkage of described machine shaft;
The inner peripheral part coaxial sleeve of described machine shaft is equipped with rotor core, on the outer peripheral face of described rotor core, is provided with permanent magnet, and the inside of described casing is also provided with the stator matching with described permanent magnet.
Preferably, described controller is positioned at the inside of described casing.
Preferably, on described machine shaft, coaxial sleeve is equipped with cooling fan.
Preferably, described stator comprises stator core, is multiplely wound in the stator enamelled wire group in described stator core and is arranged at the cold air duct in described stator core.
Preferably, 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, between described machine shaft and described rotor core, be provided with insulating barrier, and described casing is plastic part.
Preferably, described insulating barrier is epoxy resin pipe.
Preferably, described desk-top cutting tool, by industrial frequency AC electric drive, is provided with the filter rectification module for AC-DC conversion in described controller.
Preferably, described output disc is any in grinding wheel, diamond saw blade, and described desk-top cutting tool is any in mitre saw, rod-pulling type mitre saw, Profile cut-off machine.
Preferably, described desk-top cutting tool is driven by DC low voltage power supply or power brick.
Above-mentioned background technology relatively, desk-top cutting tool provided by the utility model, comprise casing, the inside of described casing is provided with brushless electric machine and controller, described brushless electric machine comprises machine shaft, be set with output disc, the axis of described machine shaft is perpendicular to the center of circle of operating surface and the described output disc of process of described output disc the outer end linkage of described machine shaft; The inner peripheral part coaxial sleeve of described machine shaft is equipped with rotor core, on the outer peripheral face of described rotor core, is provided with permanent magnet, and the inside of described casing is also provided with the stator matching with described permanent magnet.In the course of work, described permanent magnet drives described machine shaft to rotate under the magnetic fields of described stator, drives described output disc coaxial linkage to realize corresponding cutting cutting operation simultaneously.In the overall work structure of described desk-top cutting tool without drive mechanisms such as gears, integral installation distribution structure is simply compact, useful life is longer, and it only needs brushless electric machine rotating shaft and relevant magnetic stator and rotor counterpart thereof can realize the deceleration of transmission mechanism, effectively avoid kinetic equation loss, made the transmission efficiency of described desk-top cutting tool higher.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the desk-top cutting tool that Fig. 1 provides for a kind of embodiment of the utility model;
Fig. 2 is the axial arrangement schematic diagram of brushless electric machine part in Fig. 1.
Embodiment
Core of the present utility model is to provide a kind of desk-top cutting tool, this desk-top cutting tool simple and compact for structure, and useful life is longer, and transmission efficiency is higher.
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1 and Fig. 2, the structural representation of the desk-top cutting tool that Fig. 1 provides for a kind of embodiment of the utility model; Fig. 2 is the axial arrangement schematic diagram of brushless electric machine part in Fig. 1.
In embodiment, desk-top cutting tool provided by the utility model, comprise casing 11, the inside of casing 11 is provided with brushless electric machine and controller 14, described brushless electric machine comprises machine shaft 12, be set with output disc 13, the axis of machine shaft 12 is perpendicular to the operating surface of output disc 13 and through exporting the center of circle of disc 13 the outer end linkage of machine shaft 12; The inner peripheral part coaxial sleeve of machine shaft 12 is equipped with rotor core 121, is provided with permanent magnet 122 on the outer peripheral face of rotor core 121, and the inside of casing 11 is also provided with the stator 123 matching with permanent magnet 122.In the course of work, permanent magnet 122 drive motors rotating shaft 12 under the magnetic fields of stator 123 is rotated, and drives output disc 13 coaxial linkages to realize corresponding cutting cutting operation simultaneously.In the overall work structure of described desk-top cutting tool without drive mechanisms such as gears, integral installation distribution structure is simply compact, useful life is longer, and it only needs brushless electric machine rotating shaft and relevant magnetic stator and rotor counterpart thereof can realize the deceleration of transmission mechanism, effectively avoid kinetic equation loss, made the transmission efficiency of described desk-top cutting tool higher.
Further, controller 14 is arranged at the inside of casing 11.Controller 14 is arranged to casing 11 inside and can further improves the assembly integrated level of described desk-top cutting tool, and make its structure compacter.This controller can be realized AC power to galvanic filtering, rectification, and start-stop, speed regulating control, overcurrent protection, power-off protection and soft start etc. to described brushless electric machine are controlled function.
Brushless electric machine in the present embodiment has following characteristics in real work: efficiency is high, and electric efficiency is more than 80%; Complete machine long service life, because there is no carbon brush and gear, useful life is more than 1200 hours; Noise is low, and level of noise is in 65db (decibel) left and right; Volume is little, lightweight; There is overcurrent protection and prominent calling protection.
On the other hand, stator 123 comprises stator core 124, is multiplely wound in the stator enamelled wire group 125 in stator core 124 and is arranged at the cold air duct 126 in stator core 124.By cold air duct 43 is set, so that Air Flow effectively reduces the temperature of stator enamelled wire group 42, and then improves current density, guarantee the brushless electric machine that the brushless electric machine in the present embodiment is high power density, that is, the power that the motor of unit volume produces is higher.
In addition, cold air duct 126 is made up of the gap between gap and stator core 124 and rotor core 121 between adjacent two stator enamelled wire groups 125.Stator enamelled wire is wound around on stator core 124, forms stator enamelled wire group 125.In winding process, between adjacent two stator enamelled wire groups 125, have gap, for Air Flow, the gap between adjacent two stator enamelled wire groups 125 is communicated with the gap between stator core 124 and rotor core 121, further strengthen Air Flow, improved cooling effect.
As tables of data below shows, taking the diameter of stator 4 as 55mm-65mm, the brushless electric machine that stator height is 20mm is example:
In table 1 prior art with comparing data of the present utility model
Hence one can see that, the size (stator diameter and height) of the brushless electric machine that the utility model embodiment provides is all less than the size of brushless electric machine of the prior art, but, power is greater than the power of brushless electric machine of the prior art, therefore, the power that the motor of its unit volume produces is higher, and making the brushless electric machine that the utility model embodiment provides is high power density motor.
Particularly, on machine shaft 12, coaxial sleeve is equipped with cooling fan 15.This cooling fan 15 can be described brushless electric machine cooling in the course of the work, to ensure the reliable and stable operation of its body of work assembly.
On the other hand, between machine shaft 12 and rotor core 121, be provided with insulating barrier 127, insulating barrier 127 is epoxy resin pipe, and casing 11 is plastic part.This insulating barrier and cabinet complement each other to form double insulation structure, can effectively ensure that described desk-top cutting tool meets corresponding insulation safety requirement, and improve its safety in utilization.
Certainly, above-mentioned insulating barrier is that epoxy resin pipe is only preferred version, and its material is not limited to epoxy resin pipe mentioned above, as long as the actual use needs that can meet described desk-top cutting tool all can.
More specifically, described desk-top cutting tool is driven by industrial-frequency alternating current (AC:110-127V/220-240V), is provided with the filter rectification module for AC-DC conversion in controller 14.In practical set use procedure, described desk-top cutting tool is to realize alternating current to galvanic conversion by filter rectification module, then is input to motor, and this is the current technical scheme of brushless electric machine.
Further, output disc 13 is any in grinding wheel, diamond saw blade, and described desk-top cutting tool is any in mitre saw, rod-pulling type mitre saw, Profile cut-off machine.Certainly, this output disc 13 is not limited to grinding wheel, diamond saw blade etc. mentioned above, staff can need to select flexibly according to actual condition the material of output disc 13, that is, and and as long as the actual use needs that can meet described desk-top cutting tool all can.
In addition, the bottom of casing 11 is provided with base 16.This base 16 can provide enough structural support power for casing 11 and associated component thereof, and ensures that the overall operation process of described desk-top cutting tool is more steadily reliable.
More specifically, described desk-top cutting tool is driven by DC low voltage power supply or power brick.
In order to illustrate that better in the utility model, brushless electric machine is applied to the improvement effect after desk-top cutting tool, now list the related data of desk-top cutting tool application series excited machine and brushless coaxial motor in following table:
Note: the level of noise in above form is the level of noise under each tool belt work disc Light Condition.
In summary, the desk-top cutting tool providing in the utility model, comprise casing, the inside of described casing is provided with brushless electric machine and controller, described brushless electric machine comprises machine shaft, be set with output disc, the axis of described machine shaft is perpendicular to the center of circle of operating surface and the described output disc of process of described output disc the outer end linkage of described machine shaft; The inner peripheral part coaxial sleeve of described machine shaft is equipped with rotor core, on the outer peripheral face of described rotor core, is provided with permanent magnet, and the inside of described casing is also provided with the stator matching with described permanent magnet.In the course of work, described permanent magnet drives described machine shaft to rotate under the magnetic fields of described stator, drives described output disc coaxial linkage to realize corresponding cutting cutting operation simultaneously.In the overall work structure of described desk-top cutting tool without drive mechanisms such as gears, integral installation distribution structure is simply compact, useful life is longer, and it only needs brushless electric machine rotating shaft and relevant magnetic stator and rotor counterpart thereof can realize the deceleration of transmission mechanism, effectively avoid kinetic equation loss, made the transmission efficiency of described desk-top cutting tool higher.
Above desk-top cutting tool provided by the utility model is described in detail.Applied specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection range of the utility model claim.
Claims (10)
1. a desk-top cutting tool, comprise casing, it is characterized in that: the inside of described casing is provided with brushless electric machine and controller, described brushless electric machine comprises machine shaft, be set with output disc, the axis of described machine shaft is perpendicular to the center of circle of operating surface and the described output disc of process of described output disc the outer end linkage of described machine shaft;
The inner peripheral part coaxial sleeve of described machine shaft is equipped with rotor core, on the outer peripheral face of described rotor core, is provided with permanent magnet, and the inside of described casing is also provided with the stator matching with described permanent magnet.
2. desk-top cutting tool as claimed in claim 1, is characterized in that: described controller is positioned at the inside of described casing.
3. desk-top cutting tool as claimed in claim 1, is characterized in that: on described machine shaft, coaxial sleeve is equipped with cooling fan.
4. desk-top cutting tool as claimed in claim 1, is characterized in that: described stator comprises stator core, is multiplely wound in the stator enamelled wire group in described stator core and is arranged at the cold air duct in described stator core.
5. desk-top cutting tool as claimed in claim 4, is characterized in that: 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.
6. desk-top cutting tool as claimed in claim 1, is characterized in that: between described machine shaft and described rotor core, be provided with insulating barrier, and described casing is plastic part.
7. desk-top cutting tool as claimed in claim 6, is characterized in that: described insulating barrier is epoxy resin pipe.
8. desk-top cutting tool as claimed in claim 1, is characterized in that: described desk-top cutting tool, by industrial frequency AC electric drive, is provided with the filter rectification module for AC-DC conversion in described controller.
9. desk-top cutting tool as claimed in claim 1, is characterized in that: described output disc is any in grinding wheel, diamond saw blade, and described desk-top cutting tool is any in mitre saw, rod-pulling type mitre saw, Profile cut-off machine.
10. desk-top cutting tool as claimed in claim 1, is characterized in that: described desk-top cutting tool is driven by DC low voltage power supply or power brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420288546.7U CN203871988U (en) | 2014-05-30 | 2014-05-30 | Desk type cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420288546.7U CN203871988U (en) | 2014-05-30 | 2014-05-30 | Desk type cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871988U true CN203871988U (en) | 2014-10-08 |
Family
ID=51652909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420288546.7U Expired - Fee Related CN203871988U (en) | 2014-05-30 | 2014-05-30 | Desk type cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871988U (en) |
Cited By (1)
| 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 |
-
2014
- 2014-05-30 CN CN201420288546.7U patent/CN203871988U/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |