CN206180904U - A soft start control system of direct current electric saw - Google Patents
A soft start control system of direct current electric saw Download PDFInfo
- Publication number
- CN206180904U CN206180904U CN201621263759.XU CN201621263759U CN206180904U CN 206180904 U CN206180904 U CN 206180904U CN 201621263759 U CN201621263759 U CN 201621263759U CN 206180904 U CN206180904 U CN 206180904U
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- direct current
- electric saw
- current electric
- circuit
- mosfet
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Abstract
The utility model discloses a soft start control system of direct current electric saw is including 220V storage battery, control circuit, drive circuit, MOSFET, five parts of direct current electric saw in the system. 220V storage battery is that direct current electric saw, control circuit, drive circuit provide the power, control circuit passes through RC charging and discharging circuit makes the crescent PWM signal of 555 chips output duty cycle to the armature voltage of drive MOSFET control motor risees gradually, reaches rated voltage at last, reaches the purpose of soft start, the signal amplification circuit that MOSFET drive circuit forms for the transistor, the direct current electric saw is 220V, the high -power electric chain saw of 1800W. The utility model discloses need the problem of smooth starting to the terminal direct current electric saw of arm of removing obstacles, designed a soft start control system of direct current electric saw to realize the smooth starting of direct current electric saw, can be fine prevent that the electric machine coil of electric saw is impaired, to storage battery and terminal mechanical structure's impact when reducing the electric saw and starting, thereby improve the reliability of the arm operation of removing obstacles.
Description
Technical field
This utility model is related to a kind of soft-start control system of direct current electric saw, belongs to mechanical arm for obstacle removing, motor control skill
Art field, is in particular the Soft Starting System of transmission line of electricity trees mechanical arm for obstacle removing end direct current electric saw.
Background technology
At present, still adopt based on overhead distribution, with urban afforestation in the city low-voltage distribution system of China
The raising of degree, most of distribution line is also navigated among trees.Although in the upgrading and reform strengthening of urban distribution network,
Aerial condutor realizes insulating substantially, but the insulated hull that still meeting Jing often occurs wire in running is galled by branch
And there is electric discharge sparking and disconnection fault, the frequent generation of such phenomenon particularly in the case of vile weather.Therefore set
Wood is removed obstacles the annual important production task of work Shi Ge electric companies.Due to the requirement of job security, major part is removed obstacles needs line
Road has a power failure by manually implementing, and part part of path is manually implemented also to be difficult to.Mechanical arm for obstacle removing can be in the feelings not having a power failure
Trees are carried out under condition to remove obstacles work, work efficiency is substantially increased, and reduce the trip-out rate of distribution.
The actuator of mechanical arm for obstacle removing end uses DC high-power electric chain saw, the high power DC electric chain
Saw has the characteristics of speed is fast, moment of torsion is big, due to using 220V direct current supplys, according to directly initiating the motor lines that can make electric saw
Circle is easily damaged, and can also have certain impact to accumulator battery；Directly initiate and also end machinery can be tied with larger vibrations
Structure can cause certain damage.
The content of the invention
In order to realize the smooth starting of direct current electric saw, this utility model provides a kind of soft start control system of direct current electric saw
System, the soft-start control system can prevent the impact that the motor coil of electric saw is impaired, reduce electric saw when starting to accumulator battery
And the vibrations to end frame for movement, so as to improve the stability of mechanical arm operation.
In order to achieve the above object, technical scheme that this utility model is adopted for：A kind of soft start control of direct current electric saw
System, it is characterised in that the system is by 220V accumulator batteries, control circuit, drive circuit, MOSFET, five parts of direct current electric saw
Composition.The 220V accumulator batteries are control circuit, drive circuit, direct current electric saw provide power supply；The control circuit is by 555 cores
Piece and its peripheral circuit are constituted, and the pwm signal that dutycycle gradually increases are provided for system, so as to drive MOSFET；The driving
The push-pull type direct driving circuit that circuit is made up of pair transistor, is amplified to the pwm signal of 555 chips output；It is described
MOSFET is switching device, connect direct current electric saw motor, using MOSFET open and turn off controlled motor startup and stop
Only；The motor of the direct current electric saw is series excitation type motor.
A kind of soft-start control system of direct current electric saw, it is characterised in that the control circuit is connected to accumulator battery and drive
Between galvanic electricity road, the startup and stopping of direct current electric saw is controlled by switching S1 and S2.When switch S2 is by 1 position and closing a switch
S1, accumulator battery is charged by resistance R2 to electric capacity C2, and the pwm signal for making 555 chip output duty cycles gradually increase is input to
In drive circuit；When switch S2 is pressed to 2 positions and closing switch S1, accumulator battery is discharged by diode D1, so that
Electric saw stops.
A kind of soft-start control system of direct current electric saw, it is characterised in that the drive circuit be connected to control circuit and
Between MOSFET, using transistor T1 and T2 pwm signal is amplified, improve the operating rate of circuit, it is to avoid the delay of signal.
The beneficial effects of the utility model are, for the problem that trees mechanical arm for obstacle removing end direct current electric saw starts, to propose
A kind of Soft Starting System of direct current electric saw, the system realizes the smooth starting of direct current electric saw, can be very good to prevent electric saw
Motor coil be damaged, reduce impact to accumulator battery and end frame for movement when electric saw starts, so as to improve machinery of removing obstacles
The reliability of arm operation.
Description of the drawings
Fig. 1 system construction drawings
Fig. 2 system circuit diagrams
Specific embodiment
Preferred embodiment of the present utility model is described with reference to the drawings as follows：
Embodiment one：As shown in figure 1, a kind of soft-start control system of direct current electric saw, it is characterised in that the system by
220V accumulator batteries, control circuit, drive circuit, MOSFET, five parts of direct current electric saw constitute.The 220V accumulator batteries are
Control circuit, drive circuit, direct current electric saw provide power supply；The control circuit is made up of 555 chips and its peripheral circuit, is to be
System provides the pwm signal that dutycycle gradually increases, so as to drive MOSFET；The drive circuit is by recommending that pair transistor is constituted
Formula direct driving circuit, is amplified to the pwm signal of 555 chips output；The MOSFET is switching device, connects unidirectional current
The motor of saw, using the start and stop opened with shut-off controlled motor of MOSFET；The motor of the direct current electric saw is string
Sharp formula motor.
Embodiment two：As shown in Fig. 2 a kind of soft-start control system of direct current electric saw, it is characterised in that the control electricity
Road is connected between accumulator battery and drive circuit, and the startup and stopping of direct current electric saw are controlled by switching S1 and S2.Work as switch
By to 1 position and the S1 that closes a switch, accumulator battery charges to electric capacity C2 to S2 by resistance R2, make 555 chip output duty cycles by
Cumulative big pwm signal, in being input to drive circuit；When switch S2 is pressed to 2 positions and closing switch S1, accumulator battery passes through two
Pole pipe D1 is discharged, so that electric saw stops.The drive circuit is connected between control circuit and MOSFET, using crystal
Pipe T1 and T2 amplify pwm signal, improve the operating rate of circuit, it is to avoid the delay of signal.
Claims (3)
1. a kind of soft-start control system of direct current electric saw, it is characterised in that the system is by 220V accumulator batteries, control circuit, drive
Galvanic electricity road, MOSFET, five parts of direct current electric saw constitute；The 220V accumulator batteries are control circuit, drive circuit, unidirectional current
Saw provides power supply；The control circuit is made up of 555 chips and its peripheral circuit, provides what dutycycle gradually increased for system
Pwm signal, so as to drive MOSFET；The push-pull type direct driving circuit that the drive circuit is made up of pair transistor, to 555 cores
The pwm signal of piece output is amplified；The MOSFET is switching device, connects the motor of direct current electric saw, using MOSFET's
Open the start and stop with shut-off controlled motor；The motor of the direct current electric saw is series excitation type motor.
2. a kind of soft-start control system of direct current electric saw according to claim 1, it is characterised in that the control circuit
It is connected between accumulator battery and drive circuit, the startup and stopping of direct current electric saw is controlled by switching S1 and S2；As switch S2
By to 1 position and the S1 that closes a switch, accumulator battery charges to electric capacity C2 by resistance R2, makes 555 chip output duty cycles gradually
The pwm signal of increase, in being input to drive circuit；When switch S2 is pressed to 2 positions and closing switch S1, accumulator battery passes through two poles
Pipe D1 is discharged, so that electric saw stops.
3. a kind of soft-start control system of direct current electric saw according to claim 1, it is characterised in that the drive circuit
It is connected between control circuit and MOSFET, using transistor T1 and T2 pwm signal is amplified, improves the operating rate of circuit,
Avoid the delay of signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621263759.XU CN206180904U (en) | 2016-11-23 | 2016-11-23 | A soft start control system of direct current electric saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621263759.XU CN206180904U (en) | 2016-11-23 | 2016-11-23 | A soft start control system of direct current electric saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206180904U true CN206180904U (en) | 2017-05-17 |
Family
ID=58686485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621263759.XU Expired - Fee Related CN206180904U (en) | 2016-11-23 | 2016-11-23 | A soft start control system of direct current electric saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206180904U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365780A (en) * | 2017-12-21 | 2018-08-03 | 济南汇川科技发展有限公司 | A kind of electric saw automatic control system and method |
| CN108750528A (en) * | 2018-06-08 | 2018-11-06 | 天津诺泰克传动技术有限公司 | A kind of motorized pulleys gently started |
| CN110336618A (en) * | 2019-06-17 | 2019-10-15 | 武汉永信丰科技有限公司 | A kind of optical module control method, device and storage medium |
-
2016
- 2016-11-23 CN CN201621263759.XU patent/CN206180904U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365780A (en) * | 2017-12-21 | 2018-08-03 | 济南汇川科技发展有限公司 | A kind of electric saw automatic control system and method |
| CN108750528A (en) * | 2018-06-08 | 2018-11-06 | 天津诺泰克传动技术有限公司 | A kind of motorized pulleys gently started |
| CN110336618A (en) * | 2019-06-17 | 2019-10-15 | 武汉永信丰科技有限公司 | A kind of optical module control method, device and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20171123 |