CN109756051A - A kind of closed brushless motor on sander - Google Patents
A kind of closed brushless motor on sander Download PDFInfo
- Publication number
- CN109756051A CN109756051A CN201910210815.5A CN201910210815A CN109756051A CN 109756051 A CN109756051 A CN 109756051A CN 201910210815 A CN201910210815 A CN 201910210815A CN 109756051 A CN109756051 A CN 109756051A
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- motor
- casing
- rear end
- end cap
- eccentric shaft
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The closed brushless motor that the invention discloses a kind of on sander, including casing, motor, polishing disk, trigger and pcb board, the motor and pcb board are arranged in casing, the polishing disk is connect by motor with casing, the trigger is arranged in casing upper end, and motor is controlled by trigger and is opened or closed, the motor includes output shaft, eccentric shaft, drive end bearing bracket, motor casing and rear end cap, one end positioned at the eccentric shaft is arranged with bearing, rotor, stator and circlip, the drive end bearing bracket, motor casing, rear end cap and bearing are combined into an enclosed space, it can prevent dust from entering motor, ensure the stabilization of motor performance, improve brushless motor stability, it is easy to use maintenance, prevent the injury caused by workpiece, prevent motor damage, it improves service life.
Description
Technical field
The closed brushless motor that the present invention relates to a kind of on sander.
Background technique
Sanding and polishing be agree to word, all refer to some out-of-flatnesses, uneven thickness, do not meet technique requirement material with
Object is allowed to more smooth flat by way of the physical removals such as emery cloth, grinding wheel, sand paper, scouring pad, non-woven fabric polishing wheel
Whole, thickness uniformity, technique be allowed to a kind of method up to standard, apply to various surfacing process productions, the production of standard knots component,
Toy handicraft industry, finishing and furniture industry, floor wallboard building material industry etc..
Sander " as its name suggests, exactly completes the mechanical equipment used when sanding work, is related to the extensive category of industry extremely
It is various, but insider, generally the sander that is called with automatic feed system, others are called belt sander, abrasive machine, throwing
Ray machine etc..
Existing sander has some disadvantages: that the electric property of 1, motor is easy to be influenced by dust, 2, motor it is easy
It loosens, 3, brushless motor is easily damaged because of overload；4, sander does not brake or using mechanical brake, and sander is thrown after shutting down
CD cannot quickly stop rotating；5, brushless motor generally uses 6 slots or 12 slot coilings, is easy to make motor temperature rise in this way, reduce
The rated power of motor.
Summary of the invention
(1) technical problems to be solved
The technical problem to be solved in the present invention is to provide one kind to prevent dust from entering motor, it is ensured that the stabilization of motor performance improves
Brushless motor stability is easy to use maintenance, prevents from injuring caused by workpiece, prevents motor damage, improves service life
A kind of closed brushless motor on sander.
(2) technical solution
In order to solve the above technical problems, the present invention provides a kind of closed brushless motor on sander, including casing, electricity
Machine, polishing disk, trigger and pcb board, the motor and pcb board are arranged in casing, and the polishing disk passes through motor and casing
Connection, the trigger are arranged in casing upper end, and are opened or closed by trigger control motor, the motor include output shaft,
Eccentric shaft, drive end bearing bracket, motor casing and rear end cap are arranged with bearing, rotor, stator and circlip positioned at one end of the eccentric shaft,
The drive end bearing bracket, motor casing, rear end cap and bearing are combined into an enclosed space, wherein the output shaft is arranged in bias
On axis, described eccentric shaft one end sequentially passes through drive end bearing bracket, motor casing and rear end cap, and the stator is coated on rotor and passes through electricity
Casing is sealed, and the bearing is separately positioned on drive end bearing bracket and rear end cap, and the circlip is arranged on rear end cap and to inclined
Mandrel is connected and fixed.
It further, further include temperature controller, the temperature controller is arranged between motor casing and rear end cap.
It further, further include the first tapping screw, between the drive end bearing bracket, motor casing and rear end cap three certainly by first
Screw is attacked closely to be connected.
Further, the second tapping screw is equipped between the casing and motor, the motor is solid by the second tapping screw
It is fixed to be arranged on casing.
Further, sealing ring is equipped between the motor and polishing disk.
Further, the motor is 24 slot winding structures.
(3) beneficial effect
Compared with prior art, the beneficial effect is that:
1, a kind of closed brushless motor on sander provided by the present invention, can prevent dust from entering motor,
Ensure the stabilization of motor performance, improve brushless motor stability, is easy to use maintenance, prevents from injuring caused by workpiece, prevent
Motor damage improves service life.
2, polishing disk and output shaft are connected through a screw thread, and there is a gentle touchdown in the end face of sealing ring and polishing disk, bearing and partially
Mandrel cooperation, rotor and eccentric shaft cooperate, and when releasing trigger, brushless motor power-off, rotor, eccentric shaft are because of effect of inertia, band
Dynamic polishing disk is continuous after rotation, and the electric brake of pcb board can be such that eccentric shaft stops rapidly, so that it is guaranteed that polishing disk stops operating.
3, motor includes output shaft, eccentric shaft, drive end bearing bracket, motor casing and rear end cap, one end of eccentric shaft be arranged with bearing,
Rotor, stator and circlip, stator are pressed into motor casing, are fixed between drive end bearing bracket and motor casing with 4 machine screws, rear end cap
It is fixed between motor casing with 4 machine screws, to make a combination thereof at an enclosed space, avoids the intrusion of dust,
To improve the service life of motor.
4, the setting of temperature controller, when temperature controller is detected when the temperature on motor surface is more than setting value, by motor
Route disconnects, so that brushless motor is protected, to solve the problems, such as that brushless motor is damaged because of overload.
5, sealing ring is equipped between motor and polishing disk, this avoid a large amount of dust to enter directly into motor.
6, motor is 24 slot winding structures, and motor temperature rise can be effectively reduced in this way, improve the rated power of motor.
Detailed description of the invention
Fig. 1 is a kind of whole explosive view of the closed brushless motor on sander of the present invention.
Fig. 2 is a kind of cross-sectional view of the closed brushless motor on sander of the present invention.
Fig. 3 is a kind of motor explosive view of the closed brushless motor on sander of the present invention.
Fig. 4 is a kind of electric machine winding slot cross-section schematic diagram of the closed brushless motor on sander of the present invention.
Fig. 5 is a kind of coiling schematic diagram of the closed brushless motor on sander of the present invention.
In figure, casing 1, motor 2, polishing disk 3, trigger 4, pcb board 5, output shaft 6, eccentric shaft 7, drive end bearing bracket 8, motor casing
9, rear end cap 10, bearing 11, rotor 12, stator 13, circlip 14, temperature controller 15, machine screws 16, the second tapping screw 17, close
Seal 18.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example cannot be used to limit the scope of the invention for illustrating the present invention.
Embodiment 1
As shown in Figs. 1-5, a kind of closed brushless motor 2 on sander provided by the present invention mentioned, including casing 1,
Motor 2, polishing disk 3, trigger 4 and pcb board 5, the motor 2 and pcb board 5 are arranged in casing 1, and the polishing disk 3 passes through
Motor 2 is connect with casing 1, and the trigger 4 is arranged in 1 upper end of casing, and is controlled motor 2 by trigger 4 and opened or closed, described
Motor 2 includes output shaft 6, eccentric shaft 7, drive end bearing bracket 8, motor casing 9 and rear end cap 10, and one end positioned at the eccentric shaft 7 is arranged
There are bearing 11, rotor 12, stator 13 and circlip 14, the drive end bearing bracket 8, motor casing 9, rear end cap 10 and bearing 11 are combined into one
Enclosed space, wherein the output shaft 6 is arranged on eccentric shaft 7, and described 7 one end of eccentric shaft sequentially passes through drive end bearing bracket 8, electricity
Casing 9 and rear end cap 10, the stator 13 are coated on rotor 12 and are sealed by motor casing 9, and the bearing 11 is distinguished
It is arranged on drive end bearing bracket 8 and rear end cap 10, the circlip 14 is arranged on rear end cap 10 and connects and fixes to eccentric shaft 7,
It further include temperature controller 15, it further includes machine screws 16 that the temperature controller 15, which is arranged between motor casing 9 and rear end cap 10, described
It is closely connected between 10 three of drive end bearing bracket 8, motor casing 9 and rear end cap by machine screws 16, the casing 1 and motor 2
Between be equipped with the second tapping screw 17, the motor 2 is fixed on casing 1 by the second tapping screw 17, the motor 2
Sealing ring 18 is equipped between polishing disk 3, the motor 2 is 24 slot winding structures.
A kind of closed brushless motor 2 on sander, can prevent dust from entering provided by the present embodiment
Motor 2, it is ensured that the stabilization of 2 performance of motor improves 2 stability of brushless motor, is easy to use maintenance, prevents the wound caused by workpiece
Evil prevents motor 2 from damaging, and improves service life, and polishing disk 3 is connected through a screw thread with output shaft 6, sealing ring 18 and polishing disk 3
End face have a gentle touchdown, bearing 11 and eccentric shaft 7 cooperate, and rotor 12 and eccentric shaft 7 cooperate, when releasing trigger 4, brushless electricity
Machine 2 powers off, and rotor 12, eccentric shaft 7 drive polishing disk 3 continuous after rotation, the electric brake of pcb board 5 can make bias because of effect of inertia
Axis 7 stops rapidly, so that it is guaranteed that polishing disk 3 stops operating, motor 2 includes output shaft 6, eccentric shaft 7, drive end bearing bracket 8, motor casing 9
With rear end cap 10, one end of eccentric shaft 7 is arranged with bearing 11, rotor 12, stator 13 and circlip 14, and stator 13 is pressed into motor casing
It is fixed with 4 machine screws 16 between drive end bearing bracket 8 and motor casing 9 in 9, with 4 mechanism spiral shells between rear end cap 10 and motor casing 9
16 fixation of nail, to make a combination thereof at an enclosed space, avoids the intrusion of dust, to improve the use longevity of motor 2
Life, the setting of temperature controller 15, when temperature controller 15 is detected when the temperature on 2 surface of motor is more than setting value, by the line of motor 2
Road disconnects, to protect brushless motor 2, to solve the problems, such as that brushless motor 2 is damaged because of overload, motor 2 and polishing disk 3 it
Between be equipped with sealing ring 18, this avoid a large amount of dust to enter directly into motor 2, motor 2 be 24 slot winding structures, in this way
2 temperature rise of motor can be effectively reduced, improve the rated power of motor 2.
When installation, first it is bumped into stator core in such a way that 24 slot wire windings are by enameled wire by hand coiling, so
Afterwards combine output shaft 6, eccentric shaft 7, drive end bearing bracket 8, motor casing 9, rear end cap 10, bearing 11, rotor 12, stator 13 and circlip 14
It is spliced into an enclosed motor 2, then motor 2, pcb board 5 and trigger 4 are arranged on casing 1, finally by polishing disk 3
It is arranged on the output shaft 6 on motor 2 by sealing ring 18 and carries out beginning polishing.
The above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of closed brushless motor on sander, which is characterized in that including casing, motor, polishing disk, trigger and
Pcb board, the motor and pcb board are arranged in casing, and the polishing disk is connect by motor with casing, the trigger setting
In casing upper end, and motor is controlled by trigger and is opened or closed, the motor includes output shaft, eccentric shaft, drive end bearing bracket, motor
Shell and rear end cap are arranged with bearing, rotor, stator and circlip positioned at one end of the eccentric shaft, the drive end bearing bracket, motor casing,
Rear end cap and bearing are combined into an enclosed space, wherein the output shaft is arranged on eccentric shaft, described eccentric shaft one end
Drive end bearing bracket, motor casing and rear end cap are sequentially passed through, the stator is coated on rotor and is sealed by motor casing, the axis
It holds and is separately positioned on drive end bearing bracket and rear end cap, the circlip is arranged on rear end cap and connects and fixes to eccentric shaft.
2. a kind of closed brushless motor on sander according to claim 1, which is characterized in that further include temperature
Device is controlled, the temperature controller is placed in motor stator winding.
3. a kind of closed brushless motor on sander according to claim 1, which is characterized in that further include machine
Screw-making is closely connected between the drive end bearing bracket, motor casing and rear end cap three by the first tapping screw.
4. a kind of closed brushless motor on sander according to claim 1, which is characterized in that the casing
The second tapping screw is equipped between motor, the motor is fixed on casing by the second tapping screw.
5. a kind of closed brushless motor on sander according to claim 1, which is characterized in that the motor
Sealing ring is equipped between polishing disk.
6. a kind of closed brushless motor on sander according to claim 1, which is characterized in that the motor
For 24 slot winding structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910210815.5A CN109756051A (en) | 2019-03-20 | 2019-03-20 | A kind of closed brushless motor on sander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910210815.5A CN109756051A (en) | 2019-03-20 | 2019-03-20 | A kind of closed brushless motor on sander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109756051A true CN109756051A (en) | 2019-05-14 |
Family
ID=66408955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910210815.5A Withdrawn CN109756051A (en) | 2019-03-20 | 2019-03-20 | A kind of closed brushless motor on sander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109756051A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702668A (en) * | 2020-06-29 | 2020-09-25 | 於雪峰 | Safety abrasive disc for handheld sander |
-
2019
- 2019-03-20 CN CN201910210815.5A patent/CN109756051A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702668A (en) * | 2020-06-29 | 2020-09-25 | 於雪峰 | Safety abrasive disc for handheld sander |
| CN111702668B (en) * | 2020-06-29 | 2022-03-25 | 唐山友乾科技有限公司 | Safety abrasive disc for handheld sander |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190514 |
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| WW01 | Invention patent application withdrawn after publication |