CN105235017B - A kind of electric saw emergency braking control device - Google Patents
A kind of electric saw emergency braking control device Download PDFInfo
- Publication number
- CN105235017B CN105235017B CN201510749997.5A CN201510749997A CN105235017B CN 105235017 B CN105235017 B CN 105235017B CN 201510749997 A CN201510749997 A CN 201510749997A CN 105235017 B CN105235017 B CN 105235017B
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- China
- Prior art keywords
- control device
- electric saw
- electromagnet
- emergency braking
- braking
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Abstract
The present invention relates to a kind of electric saw emergency braking control device, it includes fixed case, detector, disk, described fixed case is internally provided with electromagnet, junction block is provided with the right side of described electromagnet, dynamic iron core is provided with the left of described electromagnet, described dynamic iron core is connected with fore shaft, braking knife is connected with the downside of described fore shaft, the bottom of described braking knife is provided with dead axle, spring is provided with the downside of described braking knife, rotating shaft is provided with the middle part of described disk, described rotating shaft is connected with motor, bearing is provided with the outside of described rotating shaft, sawtooth is evenly arranged with the outside of described disk, protective cover is provided with the outside of described sawtooth, described detector is connected with IC, described IC is connected with power-down circuit and amplifying circuit, described power-down circuit is connected with motor, described amplifying circuit is connected with junction block；The present invention has the advantages that rational in infrastructure, easy to use, safe, protection effect is good.
Description
Technical field
The invention belongs to electric saw technical field, and in particular to a kind of brake control, and more particularly to a kind of electric saw is urgent
Brake control.
Background technology
Electric saw is largely used in building decoration and carpenter's processing, and it is a kind of cutting work the most universal in daily life
Tool, also brings huge security threat while being brought convenience to us, has many people every year because misoperation etc.
Injured by electric saw, the finger that victim has is hindered or amputated, rupture of tendon by saw, causes the personal injury that can not be retrieved, seriously
Even life-threatening safety, each electric saw is all a potential weapon, at any time all can because of carelessness or misoperation
And people are damaged and lost, it can be seen that, traditional electric saw is dangerous high, destructive strong；Therefore it provides a kind of structure is closed
The good electric saw emergency braking control device of reason, easy to use, safe, protection effect is necessary.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, and provide a kind of rational in infrastructure, easy to use, safe
Property the good electric saw emergency braking control device of high, protection effect.
The object of the present invention is achieved like this：A kind of electric saw emergency braking control device, it includes fixed case, detection
Device, disk, described being internally provided with the right side of electromagnet, described electromagnet for fixed case are provided with junction block, described electricity
Dynamic iron core is provided with the left of magnet, described dynamic iron core is connected with the downside of fore shaft, described fore shaft and is connected with braking knife, described
The bottom of braking knife be provided with to be provided with the middle part of spring, described disk on the downside of dead axle, described braking knife and be provided with
Rotating shaft, described rotating shaft, which is connected with the outside of motor, described rotating shaft, is provided with bearing, is uniformly arranged on the outside of described disk
Have and protective cover is provided with the outside of sawtooth, described sawtooth, described detector is connected with IC, and described IC is connected with power-off electric
Road and amplifying circuit, described power-down circuit are connected with motor, and described amplifying circuit is connected with junction block.
Described fixed case is cuboid fixed case.
Described electromagnet is pipe electromagnet.
Described fore shaft is sickleshaped.
Described braking knife is inclined wedge-shaped.
Described bearing is insulation bearing.
Described motor is series machine.
Beneficial effects of the present invention：The present invention uses detector, under normal circumstances, and detector is not known specifically to timber
Not, disk high-speed rotation is cut by sawtooth to timber, and detector is waited for, when human body is not intended to touch saw blade
When, detector judges the clutter and Leakage Current of human body, and by signal transduction to IC, signal passes through IC processing, exports strong signal,
Again respectively by amplifying circuit and power-down circuit, amplifying circuit is connected with junction block, and junction block is connected with electromagnet, electromagnet production
Raw vigorous magnetic, and then dynamic iron core is quickly sucked, fore shaft comes off, and brakes knife under the traction of spring along fixed-axis rotation, very fast dynamic
Make, the stuck sawtooth of the edge of a knife, so that braking is realized, meanwhile, power-down circuit carries out power-off operation to motor, so as to produce brake hard
Effect, it is ensured that user or other people personal safety；The present invention is provided with C1, R1, R3, R4 in circuit, and signal passes through C1
Coupling, by potentiometer R3 and spacing resistance R1, R4, into IC 2 pin, R3 can adjust trigger sensitivity, by changing R3, R4
Ratio can also further adjust trigger sensitivity, it is ensured that the flexibility of electric saw user's control set for adjusting；IC 3 pin
Output signal, power-down circuit and amplifying circuit are reached by signal, by changing R2 and C2 value, can finely tune braking time, are protected
The good of control device braking effect is demonstrate,proved, C3 is used as anti-interference element, it is ensured that the accuracy of control device signal；Present invention tool
Have the advantages that rational in infrastructure, easy to use, safe, protection effect is good.
Brief description of the drawings
Fig. 1 is a kind of structural representation of electric saw emergency braking control device of the invention.
Fig. 2 is a kind of circuit theory diagrams of electric saw emergency braking control device of the invention.
Fig. 3 is a kind of workflow diagram of electric saw emergency braking control device of the invention.
1st, protective cover 2, fore shaft 3, the edge of a knife 4, dynamic iron core 5, fixed case 6, electromagnet 7, junction block 8, braking knife
9th, dead axle 10, spring 11, sawtooth 12, disk 13, bearing 14, rotating shaft 15, detector 16, motor 17, power-down circuit
18th, amplifying circuit.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
Embodiment 1
As Figure 1-3, a kind of electric saw emergency braking control device, it includes fixed case 5, detector 15, disk 12, institute
Being internally provided with the right side of electromagnet 6, described electromagnet 6 for the fixed case 5 stated is provided with junction block 7, and described electromagnet 6 is left
Side is provided with dynamic iron core 4, and described dynamic iron core 4 is connected with fore shaft 2, and the downside of described fore shaft 2 is connected with braking knife 8, described
The bottom of braking knife 8 be provided with dead axle 9, the downside of described braking knife 8 is provided with spring 10, the middle part of described disk 12
Rotating shaft 14 is provided with, described rotating shaft 14 is connected with motor 16, and the outside of described rotating shaft 14 is provided with bearing 13, described circle
The outside of disk 12 is evenly arranged with sawtooth 11, and the outside of described sawtooth 11 is provided with protective cover 1, and described detector 15 is connected
There are IC, described IC to be connected with power-down circuit 17 and amplifying circuit 18, described power-down circuit 17 is connected with motor 16, described
Amplifying circuit 18 is connected with junction block 7.
The present invention uses detector 15, under normal circumstances, and detector 15 does not carry out specific recognition to timber, and disk 12 is at a high speed
Rotation is cut by sawtooth 11 to timber, and detector 15 is waited for, when human body is not intended to touching saw blade, detector
15 judge the clutter and Leakage Current of human body, and by signal transduction to IC, signal passes through IC processing, exports strong signal, then distinguish
By amplifying circuit 18 and power-down circuit 17, amplifying circuit 18 is connected with junction block 7, and junction block 7 is connected with electromagnet 6, electromagnetism
Iron 6 produces vigorous magnetic, so it is quick suck dynamic iron core 4, fore shaft 2 comes off, and braking knife 8 is under the traction of spring along 9 turns of dead axle
It is dynamic, very fast action, the stuck sawtooth 11 of the edge of a knife 3, so that braking is realized, meanwhile, power-down circuit 17 carries out power-off operation to motor 16,
So as to produce brake hard effect, it is ensured that user or other people personal safety；The present invention be provided with circuit C1, R1,
R3, R4, signal are coupled by C1, by potentiometer R3 and spacing resistance R1, R4, and into IC 2 pin, the adjustable triggerings of R3 are sensitive
Degree, can also further adjust trigger sensitivity, it is ensured that electric saw user's control set for adjusting by the ratio for changing R3, R4
Flexibility；IC 3 pin output signals, power-down circuit and amplifying circuit are reached by signal, by changing R2 and C2 value, can be with
Finely tune braking time, it is ensured that control device braking effect it is good, C3 is used as anti-interference element, it is ensured that control device signal
Accuracy；The present invention has the advantages that rational in infrastructure, easy to use, safe, protection effect is good.
Embodiment 2
As Figure 1-3, a kind of electric saw emergency braking control device, it includes fixed case 5, detector 15, disk 12, institute
Being internally provided with the right side of electromagnet 6, described electromagnet 6 for the fixed case 5 stated is provided with junction block 7, and described electromagnet 6 is left
Side is provided with dynamic iron core 4, and described dynamic iron core 4 is connected with fore shaft 2, and the downside of described fore shaft 2 is connected with braking knife 8, described
The bottom of braking knife 8 be provided with dead axle 9, the downside of described braking knife 8 is provided with spring 10, the middle part of described disk 12
Rotating shaft 14 is provided with, described rotating shaft 14 is connected with motor 16, and the outside of described rotating shaft 14 is provided with bearing 13, described circle
The outside of disk 12 is evenly arranged with sawtooth 11, and the outside of described sawtooth 11 is provided with protective cover 1, and described detector 15 is connected
There are IC, described IC to be connected with power-down circuit 17 and amplifying circuit 18, described power-down circuit 17 is connected with motor 16, described
Amplifying circuit 18 is connected with junction block 7, and described fixed case 5 is cuboid fixed case, and described electromagnet 6 is pipe electromagnetism
Iron, described fore shaft 2 is sickleshaped, and described braking knife 8 is inclined wedge-shaped, and described bearing 13 is insulation bearing, described electricity
Machine is 16 series machines.
The present invention uses detector 15, under normal circumstances, and detector 15 does not carry out specific recognition to timber, and disk 12 is at a high speed
Rotation is cut by sawtooth 11 to timber, and detector 15 is waited for, when human body is not intended to touching saw blade, detector
15 judge the clutter and Leakage Current of human body, and by signal transduction to IC, signal passes through IC processing, exports strong signal, then distinguish
By amplifying circuit 18 and power-down circuit 17, amplifying circuit 18 is connected with junction block 7, and junction block 7 is connected with electromagnet 6, electromagnetism
Iron 6 produces vigorous magnetic, so it is quick suck dynamic iron core 4, fore shaft 2 comes off, and braking knife 8 is under the traction of spring along 9 turns of dead axle
It is dynamic, very fast action, the stuck sawtooth 11 of the edge of a knife 3, so that braking is realized, meanwhile, power-down circuit 17 carries out power-off operation to motor 16,
So as to produce brake hard effect, it is ensured that user or other people personal safety；The present invention be provided with circuit C1, R1,
R3, R4, signal are coupled by C1, by potentiometer R3 and spacing resistance R1, R4, and into IC 2 pin, the adjustable triggerings of R3 are sensitive
Degree, can also further adjust trigger sensitivity, it is ensured that electric saw user's control set for adjusting by the ratio for changing R3, R4
Flexibility；IC 3 pin output signals, power-down circuit and amplifying circuit are reached by signal, by changing R2 and C2 value, can be with
Finely tune braking time, it is ensured that control device braking effect it is good, C3 is used as anti-interference element, it is ensured that control device signal
Accuracy；The present invention has the advantages that rational in infrastructure, easy to use, safe, protection effect is good.
Claims (7)
1. a kind of electric saw emergency braking control device, it includes fixed case, detector, disk, it is characterised in that：Described fixation
Being internally provided with the right side of electromagnet, described electromagnet for case is provided with junction block, and dynamic iron is provided with the left of described electromagnet
Core, described dynamic iron core, which is connected with the downside of fore shaft, described fore shaft, is connected with braking knife, and the bottom of described braking knife is set
Have to be provided with the middle part of spring, described disk on the downside of dead axle, described braking knife and be provided with rotating shaft, described rotating shaft connection
Have to be provided with the outside of bearing, described disk on the outside of motor, described rotating shaft and be evenly arranged with sawtooth, described sawtooth
Outside is provided with protective cover, and described detector is connected with IC, and described IC is connected with power-down circuit and amplifying circuit, described
Power-down circuit be connected with motor, described amplifying circuit is connected with junction block, the power-down circuit and amplifying circuit and set
There are C1, R1, R3, R4, signal is coupled by C1, by potentiometer R3 and spacing resistance R1, R4, into IC 2 pin, R3
Adjustable trigger sensitivity, can also further adjust trigger sensitivity, it is ensured that electric saw makes by the ratio for changing R3, R4
The flexibility of user's control set for adjusting；IC 3 pin output signals, reach power-down circuit and amplifying circuit by signal, pass through
Change R2 and C2 value fine setting braking time, it is ensured that control device braking effect, C3 is used as anti-interference element, it is ensured that control
The accuracy of device signal processed.
2. a kind of electric saw emergency braking control device as described in claim 1, it is characterised in that：Described fixed case is length
Cube fixed case.
3. a kind of electric saw emergency braking control device as described in claim 1, it is characterised in that：Described electromagnet is circle
Pipe electromagnet.
4. a kind of electric saw emergency braking control device as described in claim 1, it is characterised in that：Described fore shaft is reaping hook
Shape.
5. a kind of electric saw emergency braking control device as described in claim 1, it is characterised in that：Described braking knife is oblique
Wedge shape.
6. a kind of electric saw emergency braking control device as described in claim 1, it is characterised in that：Described bearing is insulation
Bearing.
7. a kind of electric saw emergency braking control device as described in claim 1, it is characterised in that：Described motor is series excitation
Motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510749997.5A CN105235017B (en) | 2015-10-29 | 2015-10-29 | A kind of electric saw emergency braking control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510749997.5A CN105235017B (en) | 2015-10-29 | 2015-10-29 | A kind of electric saw emergency braking control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105235017A CN105235017A (en) | 2016-01-13 |
| CN105235017B true CN105235017B (en) | 2017-08-15 |
Family
ID=55032961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510749997.5A Expired - Fee Related CN105235017B (en) | 2015-10-29 | 2015-10-29 | A kind of electric saw emergency braking control device |
Country Status (1)
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| CN (1) | CN105235017B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108582201A (en) * | 2018-06-13 | 2018-09-28 | 马平 | A kind of safe bench saw based on electromagnetic principle |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514787A (en) * | 2016-10-21 | 2017-03-22 | 冷曜君 | Bench saw active safety device |
| CN106607974A (en) * | 2017-01-21 | 2017-05-03 | 向奕铭 | Safety protection device for electric circular saw and method thereof |
| CN108724368A (en) * | 2018-06-13 | 2018-11-02 | 郑树明 | A kind of safe bench saw based on flywheel limit |
| CN109664384A (en) * | 2019-02-01 | 2019-04-23 | 安徽理工大学 | A kind of safe bench saw |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1004539B (en) * | 1987-06-23 | 1989-06-21 | 铁道部第一工程局机械筑路工程处 | Two-way double-layer safety protection device for woodworking flat planer |
| CN2086653U (en) * | 1990-12-25 | 1991-10-16 | 彭兆祥 | Safety protector for plane planer |
| CN2110564U (en) * | 1991-09-17 | 1992-07-22 | 刘同波 | Electric carpenter's plane with full-automatic safety protector |
| CN2190542Y (en) * | 1993-12-13 | 1995-03-01 | 澄西船舶修造厂 | Common safety device for cover-type carpenter planer |
| US20090038456A1 (en) * | 2007-07-23 | 2009-02-12 | Wade Burch | Cut Finish Actuator For Table Saw |
| DE102007055650B3 (en) * | 2007-11-21 | 2009-04-16 | Metabowerke Gmbh | Motor-driven circular saw with rotatable protective cover |
-
2015
- 2015-10-29 CN CN201510749997.5A patent/CN105235017B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108582201A (en) * | 2018-06-13 | 2018-09-28 | 马平 | A kind of safe bench saw based on electromagnetic principle |
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| CN105235017A (en) | 2016-01-13 |
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