CN103812399B - There is the electric tool of rotating speed switching mechanism - Google Patents
There is the electric tool of rotating speed switching mechanism Download PDFInfo
- Publication number
- CN103812399B CN103812399B CN201210438619.1A CN201210438619A CN103812399B CN 103812399 B CN103812399 B CN 103812399B CN 201210438619 A CN201210438619 A CN 201210438619A CN 103812399 B CN103812399 B CN 103812399B
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- Prior art keywords
- rotating speed
- motor
- speed switching
- switch
- electric tool
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Abstract
The invention discloses a kind of electric tool with rotating speed switching mechanism, comprising: there is the motor of motor shaft, the panel being connected with motor circuit, the rotating speed switching switch being connected with panel circuit, trigger the rotating speed switching switch sleeve of switch motion, one end collecting switch sleeve fixing connecting tube and the first functional head being connected with the other end of connecting tube or the second functional head.Use the present invention, different output speed can be provided according to different functional head, to meet each functional head demand to different rotating speeds.
Description
Technical field
The present invention relates to a kind of electric tool with rotating speed switching mechanism.
Background technology
Existing electric tool, motor type electric tool after especially, either motor directly exports, controls motor speed output by the output of certain ratio transmissions or wiring board, the output speed only one of which of its motor, it is impossible to after meeting, motor type electric tool needs the requirement of different rotating speeds to difference in functionality head.
Summary of the invention
The present invention seeks to: a kind of simple in construction is provided, there is the electric tool of rotating speed switching mechanism.
The technical scheme is that a kind of electric tool with rotating speed switching mechanism, comprising: there is the motor of motor shaft, the panel being connected with motor circuit, the rotating speed switching switch being connected with panel circuit, trigger the rotating speed switching switch sleeve of switch motion, one end collecting switch sleeve fixing connecting tube and the first functional head being connected with the other end of connecting tube or the second functional head.
On the basis of technique scheme, farther include following attached technical scheme:
Described first and second functional head is respectively provided with first and second connecting shaft of different length.
Its farther include to house motor, panel and the casing of rotating speed switching switch, control motor work master switch connect with rotating speed switching switch, be arranged on casing in and trigger the trigger of master switch work and the axle sleeve that is set on motor shaft, wherein switch sleeve is provided with and can trigger rotating speed and switch the triggering block of switch motion and position in the inner and the back-moving spring that is resisted against on axle sleeve.
Described connecting tube has shroud ring and power transmission shaft therethrough, and one end of this power transmission shaft is set in axle sleeve, the other end then in shroud ring first and second connecting shaft with first and second functional head be in transmission connection.
Described rotating speed switching switch is positioned at around axle sleeve.
Described panel be provided with all be connected with motor, master switch single-chip microcomputer, be connected with single-chip microcomputer and the key-press input unit of input signal, the control unit run by Single-chip Controlling motor be provided by rotating speed switching switch, the decompression rectification power unit of power supply, detection control unit voltage to the detector unit of singlechip feedbsck and the zero passage detection unit that is connected between decompression rectification power unit and single-chip microcomputer are provided to single-chip microcomputer.
Described control unit includes audion that base stage is connected with single-chip microcomputer and to control the controllable silicon that pole is connected with the colelctor electrode of audion connected.
Described detector unit includes one-level transport and placing device that negative terminal is connected and two grades of transport and placing devices that anode is connected with the output of one-level transport and placing device with mains supply.
The method have the advantages that:
The present invention can provide different output speed according to different functional head, to meet each functional head demand to different rotating speeds.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Figure
1
It it is the partial sectional view of the present invention；
Figure
2
It it is the partial exploded view of the present invention；
Figure
3
Being present invention cross-sectional schematic when using the first functional head, wherein casing is removed；
Figure
4
With figure
3
Similar, for using cross-sectional schematic during the second functional head；
Figure
5
It is the circuit theory diagrams of the present invention；
Figure
6
It it is the panel wiring schematic diagram of the present invention；
Wherein:
1
, motor；
2
, panel；
3
, rotating speed switching switch；
4
, switch sleeve；
5
, connecting tube；
6
, the first functional head；
7
, the second functional head；
8
, casing；
9
, master switch；
10
, motor shaft；
11
, trigger；
12
, axle sleeve；
20
, wire；
22
, power line；
40
, triggering block；
42
, back-moving spring；
50
, shroud ring；
52
, power transmission shaft；
60
, the first connecting shaft；
70
, the second connecting shaft.
Detailed description of the invention
Embodiment: such as figure
1-6
Shown in, the invention provides the specific embodiment of a kind of electric tool with rotating speed switching mechanism, it includes having motor shaft
10
Motor
1
, and motor
1
The panel that circuit is connected
2
, and panel
2
The rotating speed switching switch that circuit is connected
3
, trigger rotating speed switching switch
3
The switch sleeve of action
4
, one end house switch sleeve
4
And fixing connecting tube
5
, and connecting tube
5
The first functional head of being connected of the other end
6
Or second functional head
7
, house motor
1
, panel
2
With rotating speed switching switch
3
Casing
8
, control motor
1
Work also switchs with rotating speed switching
3
The master switch of series connection
9
, be arranged on casing
8
In and trigger master switch
9
The trigger of work
11
, be set in motor shaft
10
On axle sleeve
12
, connect panel
2
And the wire between switch
20
, and connect panel
2
And master switch
9
Between power line
22
.Wherein switch sleeve
4
It is provided with and can trigger rotating speed switching switch
3
The triggering block of action
40
, and position in the inner and be resisted against axle sleeve
12
On back-moving spring
42
.Connecting tube
5
There is shroud ring
50
, and power transmission shaft therethrough
52
.Power transmission shaft
52
One end be set in axle sleeve
12
In, the other end is then at shroud ring
50
In with the first or second functional head
6
、
7
Connecting shaft be in transmission connection.Rotating speed switching switch
3
It is positioned at axle sleeve
12
Around, it is preferably placed at axle sleeve
12
Lower section.
First functional head
6
There is the first connecting shaft
60
, the second functional head
7
There is the second connecting shaft
70
, wherein the first connecting shaft
60
Length and the second connecting shaft
70
Length different.Such as figure
3
Shown in, the first functional head
6
Load shroud ring
50
After, due to power transmission shaft
52
Do not produce relative motor
1
Displacement, triggering block
40
Rotating speed switching switch cannot be triggered
3
Action, and the second functional head
7
Load shroud ring
50
After, such as figure
4
Shown in, the second connecting shaft
70
Relative first connecting shaft
60
Grow, promote power transmission shaft
52
Towards motor
1
Motion, thus drives switch sleeve
4
Motion, triggering block simultaneously
40
Towards motor
1
Near and run into rotating speed switching switch
3
Contact, thus give panel
2
The signal of one on-off, adjusts the rotating speed of motor.
Such as figure
5
Shown in, and combine figure
6
, panel
2
It is provided with and motor
1
, master switch
9
The single-chip microcomputer being all connected
100
, and single-chip microcomputer
100
It is connected and by rotating speed switching switch
3
The key-press input unit of input signal is provided
200
, by single-chip microcomputer
100
Control the control unit that motor runs
300
, to single-chip microcomputer
100
The decompression rectification power unit of power supply is provided
400
, detection control unit
300
Voltage to single-chip microcomputer
100
The detector unit of feedback
500
, connect decompression rectification power unit
400
And single-chip microcomputer
100
Between zero passage detection unit
600
, and the security protection unit that is connected with mains supply
700
.Its medium speed switching switch
3
Two ends with
X5
、
X6
End be connected, mains supply with
X1
、
X2
End is connected and passes through master switch
9
Control break-make, motor
1
Two ends with
X3
、
X4
End is connected.Control unit
300
Including base stage and single-chip microcomputer
100
The audion being connected
Q2
, and control pole and audion
Q2
Colelctor electrode be connected controllable silicon
Q1
It is connected.Controllable silicon
Q1
Two ends and mains supply or motor
1
It is connected.Security protection unit
700
One end sampling resistor in parallel with two
R1
With
R2
It is connected and the other end is connected with mains supply, and sampling resistor in parallel
R1
With
R2
For complete machine electric current of sampling, and at sampling resistor in parallel
R1
With
R2
Obtain a sampled voltage being proportional to complete machine electric current.And sampled voltage is by coupling electric capacity
C5
It is coupled to one-level transport and placing device
IC2A
Negative terminal, one-level transport and placing device
IC2A
Output and two grades of transport and placing devices
IC2B
Anode be connected, one-level transport and placing device
IC2A
With two grades of transport and placing devices
IC2B
Constitute detector unit
500
.Therefore when rotating speed switching switch
3
During closure or openness, single-chip microcomputer can be given accordingly
100
One signal, then single-chip microcomputer
100
To control unit
300
Change controllable silicon
Q1
The angle of flow, adjust motor
1
Both end voltage, thus adjust motor
1
Rotating speed, work as motor
1
When running into the situations such as stall, motor
1
Both end voltage can raise, and pass through detector unit
500
Feed back to single-chip microcomputer
100
, single-chip microcomputer
100
Thus send motor silence signal, it is to avoid motor work is overheated and burns.
Thus difference in functionality head has the connecting shaft of different length, triggers rotating speed switching switch by this connecting shaft
3
, to realize different rotating speeds, the most same main frame has only to change different functional heads just can realize different functions.It is first-class that functional head is preferably brush head, GREEB HEDGE MACHINE.
Certainly above-described embodiment is only for illustrating technology design and the feature of the present invention, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All equivalent transformations done according to the spirit of main technical schemes of the present invention or modification, all should contain within protection scope of the present invention.
Claims (7)
1. an electric tool with rotating speed switching mechanism, it is characterised in that comprising: have motor shaft (10)
Turning of being connected with panel (2) circuit of the panel (2) that is connected with motor (1) circuit of motor (1)
Speed switching switch (3), the triggering rotating speed switching switch switch sleeve (4) of (3) action, one end house switch sleeve
And fixing connecting tube (5) and the first functional head (6) of being connected with the other end of connecting tube (5) (4)
Or second functional head (7), described first and second functional head (6,7) is respectively provided with the first and second of different length
Connecting shaft (60,70), it farther includes to house motor (1), panel (2) and rotating speed switching switch (3)
Casing (8), control motor (1) work and with rotating speed switching switch (3) connect master switch (9), set
Put in casing (8) and trigger trigger (11) that master switch (9) works and be set in motor shaft (10)
On axle sleeve (12).
Electric tool the most according to claim 1, it is characterised in that: described switch sleeve (4) is provided with and can touch
Triggering block (40) and the position of sending out rotating speed switching switch (3) action in the inner and are resisted against on axle sleeve (12)
Back-moving spring (42).
Electric tool the most according to claim 2, it is characterised in that: described connecting tube (5) have shroud ring (50),
Power transmission shaft (52) therethrough, and one end of this power transmission shaft (52) is set in axle sleeve (12), and
The other end then in shroud ring (50) with first and second connecting shaft (60,70) of first and second functional head (6,7)
It is in transmission connection.
4. according to the electric tool described in claim 1 or 2 or 3, it is characterised in that: described rotating speed switching switch
(3) axle sleeve (12) it is positioned at around.
Electric tool the most according to claim 4, it is characterised in that: described panel (2) is provided with and motor
(1), the single-chip microcomputer (100) that master switch (9) is all connected is connected with single-chip microcomputer (100) and is switched by rotating speed
Switch (3) provide input signal key-press input unit (200) be connected with single-chip microcomputer (100) for controlling
Motor processed run control unit (300), to single-chip microcomputer (100) provide power supply decompression rectification power unit
(400), detection control unit (300) voltage the detector unit (500) fed back to single-chip microcomputer (100),
And connect the zero passage detection unit (600) between decompression rectification power unit (400) and single-chip microcomputer (100).
Electric tool the most according to claim 5, it is characterised in that: described control unit (300) includes base
Audion (Q2) that pole is connected with single-chip microcomputer (100) and control the colelctor electrode phase of pole and audion (Q2)
Controllable silicon (Q1) even.
Electric tool the most according to claim 6, it is characterised in that: described detector unit (500) includes one
Level transport and placing device (IC2A) and two grades of transport and placing devices (IC2B), sampled voltage is coupled to by coupling electric capacity (C5)
The negative terminal of described one-level transport and placing device (IC2A), the anode of described one-level transport and placing device (IC2A) and described two grades
The anode of transport and placing device (IC2B) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210438619.1A CN103812399B (en) | 2012-11-07 | 2012-11-07 | There is the electric tool of rotating speed switching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210438619.1A CN103812399B (en) | 2012-11-07 | 2012-11-07 | There is the electric tool of rotating speed switching mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103812399A CN103812399A (en) | 2014-05-21 |
| CN103812399B true CN103812399B (en) | 2016-08-31 |
Family
ID=50708712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210438619.1A Active CN103812399B (en) | 2012-11-07 | 2012-11-07 | There is the electric tool of rotating speed switching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103812399B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101637905A (en) * | 2008-07-31 | 2010-02-03 | 苏州宝时得电动工具有限公司 | Speed changer |
| CN102259329B (en) * | 2011-06-22 | 2013-08-21 | 南京德朔实业有限公司 | Multifunctional electric power tool |
| CN202906815U (en) * | 2012-11-07 | 2013-04-24 | 苏州金莱克精密机械有限公司 | Electric tool with rotation speed switching mechanism |
-
2012
- 2012-11-07 CN CN201210438619.1A patent/CN103812399B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103812399A (en) | 2014-05-21 |
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| GR01 | Patent grant |