CN205520852U - Straight grinder utensil - Google Patents
Straight grinder utensil Download PDFInfo
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- CN205520852U CN205520852U CN201620100801.XU CN201620100801U CN205520852U CN 205520852 U CN205520852 U CN 205520852U CN 201620100801 U CN201620100801 U CN 201620100801U CN 205520852 U CN205520852 U CN 205520852U
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- straight
- bistrique
- grinder tool
- casing
- electric machine
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Abstract
The utility model discloses a straight grinder utensil, including casing (4) and set up in casing (4) one side straight bistrique (13), still including set up in casing (4) are close to support frame (16) of the one side of straight bistrique (13), it reaches to be provided with brushless motor in casing (4) brushless motor's controller (3), brushless motor including rotate set up in rotor shaft (15) on support frame (16), with rotor shaft (15) synchronous pivoted rotor (5) and being fixed in stator (8) in casing (4), rotor shaft (15) with straight bistrique (13) coaxial coupling. The utility model provides a straight grinder utensil improves device life, reduces energy loss, improves output efficiency, effectively reduces straight grinder utensil's volume and weight. The controller has soft start, overload protective device and outage protect function to brushless motor, improves the safety in utilization ability, ensures the constant speed operation.
Description
Technical field
This utility model relates to directly grinding equipment technical field, has particularly to the straight grinder of one.
Background technology
Straight grinder tool, also known as electric mill or electricity straight grinder tool, is a kind of conventional electric tool.
At present, straight grinder tool is made up of casing, series excited machine and straight bistrique.
But, series excited machine itself its with the structure of carbon brush, and, this makes the energy that straight grinder has
Loss is big, reduces the delivery efficiency of instrument, and the abrasion of carbon brush directly affects the use of straight grinder tool
Life-span；Further, having the structures such as carbon brush due to series excited machine, its overall structure loads, and takes up room big,
Volume and the weight of straight grinder tool are relatively big, are not convenient to use.
Therefore, how to improve delivery efficiency and service life, reduce volume and weight, be the art
Personnel's problem demanding prompt solution.
Utility model content
In view of this, this utility model provides a kind of straight grinder tool, to improve delivery efficiency and to use the longevity
Life, reduces volume and weight.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of straight grinder tool, including casing and the straight bistrique that is arranged at described casing side, also includes arranging
In the described casing bracing frame near the side of described straight bistrique, be provided with in described casing brushless electric machine and
The controller of described brushless electric machine；
Described brushless electric machine includes rotating the armature spindle being arranged on support frame as described above and described armature spindle is same
Walking the rotor rotated and be fixed on the stator in described casing, described armature spindle coaxially connects with described straight bistrique
Connect.
Preferably, in above-mentioned straight grinder tool, also include being arranged between described casing and described straight bistrique
Prolonging handle and rotation are arranged at the extending shaft in described prolonging handle；
Described straight bistrique is arranged at one end of described extending shaft, the other end of described extending shaft and described rotor
Axle connects；Described extending shaft is connected by shaft coupling with described armature spindle；
It is provided with the location shaft shoulder on described armature spindle, is provided with between the described location shaft shoulder and described shaft coupling
Shock-absorbing spring.
Preferably, in above-mentioned straight grinder tool, described straight bistrique is directly assemblied on described armature spindle.
Preferably, in above-mentioned straight grinder tool, between described armature spindle and described rotor, it is provided with insulation sleeve；
Described insulation sleeve is provided with the insulation location for positioning described rotor away from the side of described straight bistrique
Sheet.
Preferably, in above-mentioned straight grinder tool, described controller is provided with radiator.
Preferably, in above-mentioned straight grinder tool, also include connecting brushless electric machine and the capacitive element of controller,
Described capacitive element is positioned at described casing.
Preferably, in above-mentioned straight grinder tool, also include the DC low-voltage electricity for driving described straight grinder to have
Source or battery bag.
Preferably, in above-mentioned straight grinder tool, described controller is additionally provided with the filter for AC-DC conversion
Ripple rectification module, the power line of described straight grinder tool is connected with described filter rectification module.
Preferably, in above-mentioned straight grinder tool, described brushless electric machine is for having Hall element brushless electric machine or nothing
Hall element brushless electric machine.
Preferably, in above-mentioned straight grinder tool, described brushless electric machine be inner-rotor brushless motor or outer rotor without
Brush motor.
From above-mentioned technical scheme it can be seen that the straight grinder that this utility model provides has, by arranging nothing
Brush motor drives straight bistrique to rotate, it is to avoid carbon brush setting, and then is effectively increased the service life of device,
Reduce energy loss, improve delivery efficiency.Owing to arranging brushless electric machine, compared with series excited machine,
Decrease volume and weight；By arranging bracing frame, brushless electric machine is arranged in casing, and, will
The controller of brushless electric machine is arranged in casing, it is to avoid controller is external, further reduces straight grinder
The volume of tool.After brushless electric machine communicates to connect with controller, by the rotating speed of controller regulation brushless electric machine,
So that realizing automatic speed regulating function, further increasing service life, decreasing the quantity of parts,
Effectively reduce volume and the weight of straight grinder tool.Further, by arranging brushless electric machine, controller is to nothing
Brush motor has soft start, overload protective device and power-off protection function, is effectively increased usage safety performance.
Compared with series excited machine, when bearing power rises, rotating speed rate of descent is significantly smaller, so ensure that should
Constant-speed operation is had by the straight grinder of brushless electric machine.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that,
Accompanying drawing in describing below is only embodiments more of the present utility model, for ordinary skill people
From the point of view of Yuan, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
The first structural representation of the straight grinder tool that Fig. 1 provides for this utility model embodiment；
The second structural representation of the straight grinder tool that Fig. 2 provides for this utility model embodiment；
Fig. 3 is the close-up schematic view of part A in Fig. 1；
The third structural representation of the straight grinder tool that Fig. 4 provides for the embodiment of the present invention；
4th kind of structural representation of the straight grinder tool that Fig. 5 provides for the embodiment of the present invention.
Detailed description of the invention
The utility model discloses a kind of straight grinder tool, to improve delivery efficiency and service life, reduce body
Amass and weight.
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one
Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this
The scope of utility model protection.
Refer to the first structural representation of the straight grinder tool that Fig. 1, Fig. 1 provide for this utility model embodiment
Figure.
This utility model embodiment provides a kind of straight grinder tool, including casing 4 and be arranged at casing 4 one
The straight bistrique 13 of side, also includes the bracing frame 16 being arranged at casing 4 near the side of straight bistrique 13, machine
The controller 3 of brushless electric machine and brushless electric machine it is provided with in shell 4；Brushless electric machine includes that rotation is arranged at support
The rotor 7 of the armature spindle 15 on frame 16 and armature spindle 15 synchronous axial system and be fixed on determining in casing 4
Son 8, armature spindle 15 is coaxially connected with straight bistrique 13.
The straight grinder tool that this utility model embodiment provides, drives straight bistrique 13 turns by arranging brushless electric machine
Dynamic, it is to avoid carbon brush setting, and then it is effectively increased service life of device, reduce energy loss,
Improve delivery efficiency.Owing to arranging brushless electric machine, compared with series excited machine, decrease volume and weight；
By arranging bracing frame 16, brushless electric machine is arranged in casing 4, and, by the control of brushless electric machine
Device 3 is arranged in casing 4, it is to avoid controller 3 is external, further reduces the volume of straight grinder tool.
After brushless electric machine communicates to connect with controller 3, regulated the rotating speed of brushless electric machine by controller 3, in order to
In realizing automatic speed regulating function, further increase service life, decrease the quantity of parts, effectively
Decrease volume and the weight of straight grinder tool.
Further, by arranging brushless electric machine, controller 3 has soft start, overload protection to brushless electric machine
Device and power-off protection function, be effectively increased usage safety performance.Compared with series excited machine, in load merit
When rate rises, rotating speed rate of descent is significantly smaller, and then ensure that the straight grinder tool constant speed of application brushless electric machine
Run.
In use, by the switch 6 in pressing casing 4, it is achieved the driving to brushless electric machine, make
The stator 8 and the rotor 7 that obtain brushless electric machine relatively rotate, owing to rotor 7 is relatively fixed with armature spindle 15,
And then rotor driven axle 15 rotates.
In order to avoid the brushless electric machine in the straight grinder tool that this utility model embodiment provides is overheated, impact makes
With the life-span, also include the fan 9 being arranged on armature spindle 15.During brushless electric machine runs, turn
Sub-axle 15 drives fan 9 to rotate while rotating, thus brushless electric machine is carried out heat discharging operation.
In the present embodiment, can only arrange a fan 9, fan 9 is arranged at rotor 7 near straight bistrique
The side of 13 or fan 9 are arranged at the rotor 7 side away from straight bistrique 13；Or, the quantity of fan 9
It is two and is positioned at the both sides of rotor 7, i.e. a fan 9 is positioned at the side of rotor 7, another wind
Fan 9 is positioned at the opposite side of rotor 7.No longer it is discussed in detail at this and all within protection domain.
As it is shown in figure 1, in the first embodiment, straight grinder tool also includes being arranged at casing 4 and straight mill
Prolonging handle 11 between 13 and rotate the extending shaft 12 being arranged in prolonging handle 11；Straight bistrique 13 sets
Being placed in one end of extending shaft 12, the other end of extending shaft 12 is connected with armature spindle 15.By above-mentioned setting,
Extend the casing 4 distance to straight bistrique 13, in order to the most hand-held prolonging handle 11, in order to
The stability of straight grinder tool during improving use.
In order to improve the connective stability between extending shaft 12 and armature spindle 15, extending shaft 12 and armature spindle
15 are connected by shaft coupling 10；The location shaft shoulder, the location shaft shoulder and shaft coupling 10 it is provided with on armature spindle 15
Between be provided with shock-absorbing spring 14.By arranging shock-absorbing spring 14 so that extending shaft 12 and armature spindle 15
Elastic connection is formed by shaft coupling 10, while guaranteeing that straight bistrique 13 is coaxially connected with armature spindle 15,
Avoid the transmission vibrated therebetween, be effectively increased the safety in utilization of straight grinder tool.
As in figure 2 it is shown, in the second embodiment, straight bistrique 13 is directly assemblied on armature spindle 15,
Avoid arranging miscellaneous part, be effectively increased the axiality of straight bistrique 13 and armature spindle 15.
It is possible to further bistrique 13 and armature spindle 15 are made as integral structure, improve further
The stability of the two and axiality.
As it is shown on figure 3, be provided with insulation sleeve 17 between armature spindle 15 and rotor 7；Insulation sleeve 17 away from
The side of straight bistrique 13 is provided with the insulation spacer 18 for positioning rotor 7.By above-mentioned setting, have
Effect improves the safety in utilization of brushless electric machine.
It is provided with radiator on controller 3, improves the radiating effect of controller 3, and then improve nothing
The stability in use of brush motor.
Casing 4 is provided with for protecting the protection of power line 1 to overlap 2 away from the side of straight bistrique 13, passes through
Protection set 2 is set, it is to avoid power line 1 passes the stress of the position of casing 4 and concentrates, and reduces power line
The damage of 1, improves service life.
Straight grinder tool in order to make this utility model embodiment provide can be handed over by DC low voltage power supply or power frequency
Stream electric drive, is provided with capacitive element 2, by arranging capacitive element 2 in casing 4 so that it is connect electricity
Source line and controller 3, in order to be converted into unidirectional current at industrial-frequency alternating current, to drive brushless electric machine to run.
But, owing to needs arrange power line, hinder the operation of straight grinder tool, therefore, in this enforcement
In example, it is also possible to be not provided with power line 1, battery bag is arranged in casing 4.Owing to battery bag is direct current
Voltage source, it is therefore not necessary to arrange capacitive element 2, therefore, it can battery bag is arranged at capacitance part in way
The position that part 2 is arranged, it is of course also possible to be arranged at the controller 3 side away from brushless electric machine.Pass through
Battery bag is arranged in casing 4.Effectively prevent battery bag external and affect that straight grinder tool is normal to be used
Situation.
As depicted in figs. 1 and 2, in both specific embodiments, straight grinder tool uses alternating current power supply to drive
Dynamic.Controller 3 is additionally provided with the filter rectification module for AC-DC conversion, the power supply of straight grinder tool
Line 1 is connected with filter rectification module.By arranging filter rectification module, external world's alternating current power supply is converted to
DC source, in order to drive straight grinder to have.
As shown in Figures 4 and 5, in this specific embodiment, straight grinder tool uses DC source to drive.
That is, straight grinder tool also includes that the DC low voltage power supply for driving described straight grinder to have or battery bag are (in figure
Do not show).
This utility model embodiment provide straight grinder tool in, brushless electric machine preferably have Hall element without
Brush motor, it is also possible to be set to without Hall element brushless electric machine.Can also select other kinds of brushless
Motor, introduces the most one by one at this.
Similarly, brushless electric machine can be inner-rotor brushless motor, it is also possible to for outer rotor brushless motor.
Further, straight grinder tool can be that speed governing is directly ground and directly can also be ground for non-speed governing.Speed governing is directly ground and non-tune
The straight mill of speed is compared, and adds arrangements for speed regulation, in order to the rotary speed of regulation motor.
Wherein, arrangements for speed regulation can be potentiometer, it is also possible to is electronic button type arrangements for speed regulation, it is also possible to
For other arrangements for speed regulation, tire out the most one by one at this and state.In this specification, the employing of each embodiment is gone forward one by one
Mode describes, and what each embodiment stressed is the difference with other embodiments, and each is implemented
Between example, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
This utility model.Multiple amendment to these embodiments will be aobvious for those skilled in the art
And be clear to, generic principles defined herein can be without departing from spirit or scope of the present utility model
In the case of, realize in other embodiments.Therefore, this utility model is not intended to be limited to institute herein
These embodiments shown, and it is to fit to consistent with principles disclosed herein and features of novelty the widest
Scope.
Claims (10)
1. straight grinder tool, including casing (4) and the straight bistrique that is arranged at described casing (4) side
(13), it is characterised in that also include being arranged at described casing (4) near described straight bistrique (13)
The bracing frame (16) of side, is provided with brushless electric machine and the control of described brushless electric machine in described casing (4)
Device processed (3)；
Described brushless electric machine include armature spindle (15) that rotation is arranged on support frame as described above (16) and
The rotor (5) of described armature spindle (15) synchronous axial system and the stator (8) being fixed in described casing (4),
Described armature spindle (15) is coaxially connected with described straight bistrique (13).
2. straight grinder tool as claimed in claim 1, it is characterised in that also include being arranged at described casing
(4) prolonging handle (11) and rotation and between described straight bistrique (13) are arranged at described prolonging handle (11)
Interior extending shaft (12)；
Described straight bistrique (13) is arranged at one end of described extending shaft (12), described extending shaft (12)
The other end be connected with described armature spindle (15)；Described extending shaft (12) and described armature spindle (15)
Connected by shaft coupling (10)；
The location shaft shoulder, the described location shaft shoulder and described shaft coupling (10) it is provided with on described armature spindle (15)
Between be provided with shock-absorbing spring (14).
3. straight grinder tool as claimed in claim 1, it is characterised in that described straight bistrique (13) is direct
It is assemblied on described armature spindle (15).
4. straight grinder tool as claimed in claim 1, it is characterised in that described armature spindle (15) and institute
State and between rotor (7), be provided with insulation sleeve (17)；
Described insulation sleeve (17) is provided with for positioning described turning away from the side of described straight bistrique (13)
The insulation spacer (18) of son (7).
5. straight grinder tool as claimed in claim 1, it is characterised in that described controller sets on (3)
It is equipped with radiator.
6. grinder tool as claimed in claim 1 straight, it is characterised in that also include connecting brushless electric machine and
The capacitive element (5) of controller (3), described capacitive element (5) is positioned at described casing (4).
7. straight grinder tool as claimed in claim 1, it is characterised in that in described controller (3) also
Being provided with the filter rectification module for AC-DC conversion, the power line (1) of described straight grinder tool is with described
Filter rectification module connects.
8. grinder tool as claimed in claim 1 straight, it is characterised in that also include for drive described directly
The DC low voltage power supply of grinder tool or battery bag.
9. straight grinder tool as claimed in claim 1, it is characterised in that described brushless electric machine is for there being Hall
Sensorless brushless motor or without Hall element brushless electric machine.
10. straight grinder tool as claimed in claim 1, it is characterised in that described brushless electric machine is interior turn
Sub-brushless electric machine or outer rotor brushless motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620100801.XU CN205520852U (en) | 2016-02-01 | 2016-02-01 | Straight grinder utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620100801.XU CN205520852U (en) | 2016-02-01 | 2016-02-01 | Straight grinder utensil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205520852U true CN205520852U (en) | 2016-08-31 |
Family
ID=56775059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620100801.XU Active CN205520852U (en) | 2016-02-01 | 2016-02-01 | Straight grinder utensil |
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| Country | Link |
|---|---|
| CN (1) | CN205520852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538104A (en) * | 2016-02-01 | 2016-05-04 | 浙江绿动电机科技有限公司 | Straight grinding tool |
| CN114680442A (en) * | 2022-05-16 | 2022-07-01 | 宁波金佰亿工艺制品有限公司 | Electric nail grinding device |
-
2016
- 2016-02-01 CN CN201620100801.XU patent/CN205520852U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538104A (en) * | 2016-02-01 | 2016-05-04 | 浙江绿动电机科技有限公司 | Straight grinding tool |
| CN114680442A (en) * | 2022-05-16 | 2022-07-01 | 宁波金佰亿工艺制品有限公司 | Electric nail grinding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |