CN107942802A - A kind of impact type electric driven tool monitoring apparatus - Google Patents

A kind of impact type electric driven tool monitoring apparatus Download PDF

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Publication number
CN107942802A
CN107942802A CN201711252451.4A CN201711252451A CN107942802A CN 107942802 A CN107942802 A CN 107942802A CN 201711252451 A CN201711252451 A CN 201711252451A CN 107942802 A CN107942802 A CN 107942802A
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module
time
display screen
gear
type electric
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CN201711252451.4A
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陈文理
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Priority to CN201711252451.4A priority Critical patent/CN107942802A/en
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0428Safety, monitoring
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/24Pc safety
    • G05B2219/24024Safety, surveillance

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Harvester Elements (AREA)

Abstract

The present invention provides a kind of impact type electric driven tool monitoring apparatus, it includes electric power system, central processing unit, display screen and phonetic warning system, display screen is embedded on the fuselage of electric tool, electric tool is internally provided with power monitoring module, blow cylinder oil capacity monitoring module, carbon brush monitoring module, temperature monitoring module, Rotating speed measring module, number of shocks detection module, run time detection module, each module and central processing unit, and phonetic warning system is electrically connected, the data message feedback of each module is shown on a display screen, each monitoring module is respectively provided with upper limit value, phonetic warning system sound ring alarm when reaching upper limit value, electric power system powers off.The present invention is by various data acquisition systems on a display screen for giving user to refer to; voice module is provided with the same time, when the upper limit value of monitoring reaches, high-decibel is prompted, and in subsequent power-off protection; the safety for protecting electric tool of effect again, improves the service life of electric tool.

Description

A kind of impact type electric driven tool monitoring apparatus
Technical field
The present invention relates to field of power tools, particularly a kind of impact type electric driven tool monitoring apparatus.
Background technology
Existing impact type electric driven instrument does not have corresponding monitoring means, and complete machine is burnt when work, or work half Instrument goes wrong in way, and cutter head is stuck in a dilemma on construction part.
It would therefore be desirable to have it is a kind of it is considerable, can audibility real-time alert monitoring device.
The content of the invention
The purpose of the present invention is for the existing above problem, there is provided a kind of impact type electric driven tool monitoring apparatus.
The purpose of the present invention can be realized by following technical proposal:A kind of impact type electric driven tool monitoring apparatus, it is special Sign is that it includes electric power system, central processing unit, display screen and phonetic warning system, and display screen is embedded in electric tool On fuselage, electric tool is internally provided with power monitoring module, blow cylinder oil capacity monitoring module, carbon brush monitoring module, temperature Monitoring module, Rotating speed measring module, number of shocks detection module, run time detection module, each module and central processing unit, with And phonetic warning system is electrically connected, the data message feedback of each module shows that each monitoring module is respectively provided with the upper limit on a display screen Value, phonetic warning system sound ring alarm when reaching upper limit value, or electric power system power-off.
More than the display screen shows realtime power, blow cylinder oil residual capacity or adds the time of machine oil, carbon brush is replaced Amount time, the temperature of fuselage, number of shocks is frequently in the unit interval of rotating speed, cutter head in output shaft unit interval for being connected with cutter head Rate, and the accumulated time length of work.
The power monitoring module includes voltage detecting submodule and current detecting submodule, and voltage detecting submodule is in parallel Real-time voltage is measured in the gear switching circuit of electric tool, current detecting submodule is connected on the internal wiring of electric tool Upper measurement real-time current, voltage detecting submodule and current detecting submodule the data obtained product are realtime power, realtime power Display is on a display screen.
The real-time voltage and real-time current is shown on a display screen.
The monitor speed module includes speed probe, and number of shocks detection module includes photoelectric counting sensor, should Speed probe is with photoelectric counting sensor at the output shaft that cutter head connects.
The blow cylinder oil capacity monitoring module determines oil consumption by the number of impact, if the oil consumption per Secondary Shocks For a, number of shocks n, total oil mass is M, and Fuel Oil Remaining is shown as m=M-a*n.
The blow cylinder oil capacity monitoring module includes static capacity display sub-module and dynamic capacity shows submodule Block, the static capacity show that submodule includes fuel level sensor, and the dynamic capacity display sub-module is come with the number impacted Determine oil consumption, if the oil consumption per Secondary Shocks is a, number of shocks n, total oil mass is M, and Fuel Oil Remaining is shown as m=M-a*n, In static state, Fuel Oil Remaining m is using the amount that fuel level sensor measures as display standard, with dynamic capacity display sub-module institute during work The amount obtained is display standard.
The run time monitoring module, is integrated in central processing unit, and fuselage is powered the automatic calculating time.
The carbon brush monitoring module provides data by run time detection module, (is made with formula damage Z (consumption total time)-T With the time)=S (margin time) determines the calculating of carbon brush replacing construction.
The carbon brush monitoring module is connected with switch gear, and carbon brush replacement margin time calculating is as follows, if:
The gear of switch one, is lost total time Z1, usage time T1, margin time S1;
The gear of switch two, is lost total time Z2, usage time T2, margin time S2;
The gear of switch three, is lost total time Z3, usage time T3, margin time S3;
Normalized form is:
Z1-T1=S1;
Z2-T2=S2;
Z3-T3=S3;
Set the transformation COEFFICIENT K often kept off, Z1/Z2=K1;Z1/Z3=K2;Z2/Z3=K3
(Z2-T2) xK1=S2xK1=S1;
(Z3-T3) xK2=S3xK2=S1;
(Z3-T3) xK2=S3xK3=S2;
When changing gear, it is upper one gear margin time S be multiplied by or divided by opposite K values, be changed into it is next keep off surplus when Between, loss total time of the margin time again as starting after the transformation calculates, and correspondence is changed into the gear on display screen of shifting gears every time Margin time.
The temperature monitoring module includes temperature sensor, and temperature sensor is arranged on the internal side of shell of fuselage.
Compared with prior art, the present invention is set at the same time by various data acquisition systems on a display screen for giving user to refer to Voice module is put, high-decibel is prompted when the upper limit value of monitoring reaches, and in subsequent power-off protection, and protecting of imitating is electronic The safety of instrument, improves the service life of electric tool.
Brief description of the drawings
Fig. 1 is each module connection relationship diagram of the present invention.
Fig. 2 is blow cylinder oil capacity monitoring module relation schematic diagram.
1, central processing unit in figure;2nd, power monitoring module;3rd, capacity monitor module;4th, carbon brush monitoring module;5th, impact Number detection module;6th, run time detection module;7th, temperature monitoring module;8th, Rotating speed measring module;9th, phonetic warning system; 10th, display screen;11st, static capacity display sub-module;12nd, dynamic capacity display sub-module.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Shown in Fig. 1, the present invention includes electric power system, central processing unit 1, display screen 10 and phonetic warning system 9, display screen 10 are embedded on the fuselage of electric tool, and electric power system includes battery supply or external power supply, and gear is connected in electric power system Switch, the electric power system are connected with central processing unit 1.
Display screen 10 is on the body upper of electric tool or the handle of fuselage, for intuitively showing electric tool Parameters.
Electric tool, which is internally provided with, needs what is monitored:Power monitoring module 2, blow cylinder oil capacity monitoring module 3, carbon brush Monitoring module 4, temperature monitoring module 7;
And need what is intuitively shown:Rotating speed measring module 8, number of shocks detection module 5, run time detection module 6.
Each monitoring module is needed the parameter feedback of monitoring display data on the display screen 10 first, at the same also will and voice Alarm system 9 is electrically connected.Each monitoring module is respectively provided with upper limit value, 9 sound of phonetic warning system ring alarm, power supply when reaching upper limit value System cut-off.
Secondly, if each detection module by parameter feedback on the display screen 10.
First, power monitoring module 2:Including voltage detecting submodule and current detecting submodule, voltage detecting submodule is simultaneously It is associated in the gear switching circuit of electric tool and measures real-time voltage, current detecting submodule is connected on the inner wire of electric tool Real-time current is measured on road, voltage detecting submodule and current detecting submodule the data obtained product are realtime power, in real time electricity Pressure and real-time current show that on the display screen 10, realtime power displays that on the display screen 10.When stall occurs, realtime power Rapid rise, rises to upper limit value then 9 sound of phonetic warning system ring alarm, and electric power system powers off thereafter.
2nd, blow cylinder oil capacity monitoring module 3:A schemes, directly calculate oil consumption with number of shocks, if punching every time The oil consumption hit is a, and number of shocks n, total oil mass is M, and Fuel Oil Remaining is shown as m=M-a*n.Such as:Per Secondary Shocks, loss is a =0.1ml, number of shocks is n=500 times, and the total oil mass this time added is M=100ml, then is shown on display screen 10 Numeral is m=50ml.
B schemes, in Fig. 2, blow cylinder oil capacity monitoring module 3 includes static capacity display sub-module 11 and dynamic capacity Display sub-module 12, the static capacity show that submodule includes fuel level sensor, the dynamic capacity display sub-module 12 with The number of impact determines oil consumption, if the oil consumption per Secondary Shocks is a, number of shocks n, total oil mass is M, and Fuel Oil Remaining is shown For m=M-a*n, in static state, Fuel Oil Remaining m is using the amount that fuel level sensor measures as display standard, with dynamic capacity during work The amount of the gained of display sub-module 12 is display standard.Such as:During work, static capacity shows that submodule calculates, and is damaged per Secondary Shocks Consume for a=0.1ml, number of shocks is n=500 time, and the total oil mass this time added is M=100ml, then aobvious on display screen 10 The numeral shown is m=50ml;And when static state, fluid reflux, it is 58ml that fuel level sensor, which measures Fuel Oil Remaining, then display The digital m=58ml that shows on screen 10, during lower task, is also used as total oil mass using 58ml.
3rd, carbon brush monitoring module 4:The carbon brush monitoring module 4 is connected with switch gear, and carbon brush is replaced margin time and calculated It is as follows:
The gear of switch one, is lost total time Z1, usage time T1, margin time S1;
The gear of switch two, is lost total time Z2, usage time T2, margin time S2;
The gear of switch three, is lost total time Z3, usage time T3, margin time S3;
Normalized form is:
Z1-T1=S1;
Z2-T2=S2;
Z3-T3=S3;
Set the transformation COEFFICIENT K often kept off, Z1/Z2=K1;Z1/Z3=K2;Z2/Z3=K3
(Z2-T2) xK1=S2xK1=S1;
(Z3-T3) xK2=S3xK2=S1;
(Z3-T3) xK2=S3xK3=S2;
When changing gear, it is upper one gear margin time S be multiplied by or divided by opposite K values, be changed into it is next keep off surplus when Between, loss total time of the margin time again as starting after the transformation calculates, and correspondence is changed into this on display screen 10 of shifting gears every time The margin time of gear.
Such as:Since gear is different, motor speed has point of speed, also different to the degree of wear of carbon brush,
The gear of switch one, is lost total time 100h;
The gear of switch two, is lost total time 200h;
The gear of switch three, is lost total time 400h;
1/2=K1;1/4=K2;2/4=K3
When the gear of switch three has run 50h, the present display of display screen 10 is that margin time is 350h, then switchs three gears and turns on Close two gear, S3xK3=S2, go to switch two gear after display screen 10 be shown as margin time 175h, or go to switch one gear after According to S3xK2=S1, display screen 10 is shown as margin time 87.5h, and when display only shows a hour unit h, it is inaccurate to point.When After going to the gear of switch one, electric tool 87.5h is again started up as present loss total time.When margin time reaches setting value Replace brush.
4th, temperature monitoring module 7, including temperature sensor, temperature sensor are arranged on the internal side of shell of fuselage, temperature data Display is on the display screen 10.
5th, run time detection module 6, is integrated in central processing unit 1, and fuselage is powered the automatic calculating time, and data are shown Show on the display screen 10, the call parameter as carbon brush monitoring module 4.
6th, Rotating speed measring module 8 and number of shocks detection module 5, monitor speed module include speed probe, impact time Number detection module 5 includes the output that photoelectric counting sensor, the speed probe and photoelectric counting sensor are connected arranged on cutter head At axis, 5 data of number of shocks detection module are 3 call parameter of blow cylinder oil capacity monitoring module.
The various aspects of the effective comprehensive detection electric tool of arrangement above, can prompt the inside of electric tool to ask in time Topic, improves the service life of electric tool.
Above example is intended only as one of which case and carries out special case explanation, the technology people of the technical field of the invention Member can do various modifications or additions to described specific embodiment or substitute in a similar way, but can't Deviate the spirit or beyond the scope of the appended claims of the present invention.

Claims (10)

1. a kind of impact type electric driven tool monitoring apparatus, it is characterised in that it includes electric power system, central processing unit, display screen And phonetic warning system, display screen are embedded on the fuselage of electric tool, electric tool is internally provided with power monitoring module, impact Cylinder oil capacity monitor module, carbon brush monitoring module, temperature monitoring module, Rotating speed measring module, number of shocks detection module, fortune Row time detecting module, each module are electrically connected with central processing unit and phonetic warning system, the data message feedback of each module Show on a display screen, each monitoring module is respectively provided with upper limit value, phonetic warning system sound ring alarm when reaching upper limit value, or power supply System cut-off.
2. a kind of impact type electric driven tool monitoring apparatus according to claim 1, it is characterised in that the display screen is shown Realtime power, blow cylinder oil residual capacity add the time of machine oil, carbon brush replacement margin time, the temperature and knife of fuselage Number of shocks frequency in the unit interval of rotating speed, cutter head in the output shaft unit interval of head connection, and the accumulated time of work Length.
A kind of 3. impact type electric driven tool monitoring apparatus according to claim 1 or 2, it is characterised in that the power prison Control module includes voltage detecting submodule and current detecting submodule, and the gear that voltage detecting submodule is connected in parallel on electric tool is cut Change and real-time voltage is measured on circuit, current detecting submodule, which is connected on the internal wiring of electric tool, measures real-time current, electricity It is realtime power to press detection sub-module and current detecting submodule the data obtained product, and realtime power is shown on a display screen.
A kind of 4. impact type electric driven tool monitoring apparatus according to claim 3, it is characterised in that the real-time voltage Shown on a display screen with real-time current.
A kind of 5. impact type electric driven tool monitoring apparatus according to claim 1 or 2, it is characterised in that the rotating speed prison Control module includes speed probe, and number of shocks detection module includes photoelectric counting sensor, the speed probe and photoelectrometer Number sensor is arranged at the output shaft of cutter head connection.
A kind of 6. impact type electric driven tool monitoring apparatus according to claim 1 or 2, it is characterised in that the impact gas Cylinder oil capacity monitoring module determines oil consumption by the number of impact, if the oil consumption per Secondary Shocks is a, number of shocks n, always Oil mass is M, and Fuel Oil Remaining is shown as m=M-a*n.
A kind of 7. impact type electric driven tool monitoring apparatus according to claim 1 or 2, it is characterised in that the impact Cylinder oil capacity monitor module includes static capacity display sub-module and dynamic capacity display sub-module, and the static capacity is shown Submodule includes fuel level sensor, and the dynamic capacity display sub-module determines oil consumption with the number impacted, if punching every time The oil consumption hit is a, and number of shocks n, total oil mass is M, and Fuel Oil Remaining is shown as m=M-a*n, in static state, Fuel Oil Remaining m with The amount that fuel level sensor measures is display standard, using the amount obtained by dynamic capacity display sub-module as display standard during work.
A kind of 8. impact type electric driven tool monitoring apparatus according to claim 1 or 2, it is characterised in that the carbon brush prison Control module and provide data by run time detection module, with formula damage Z (consumption total time)-T (usage time)=S (during surplus Between) determine the calculating of carbon brush replacing construction.
9. a kind of impact type electric driven tool monitoring apparatus according to claim 8, it is characterised in that the carbon brush monitors mould Block is connected with switch gear, and carbon brush replacement margin time calculating is as follows, if:
The gear of switch one, is lost total time Z1, usage time T1, margin time S1;
The gear of switch two, is lost total time Z2, usage time T2, margin time S2;
The gear of switch three, is lost total time Z3, usage time T3, margin time S3;
Normalized form is:
Z1-T1=S1;
Z2-T2=S2;
Z3-T3=S3;
Set the transformation COEFFICIENT K often kept off, Z1/Z2=K1;Z1/Z3=K2;Z2/Z3=K3
(Z2-T2) xK1=S2xK1=S1;
(Z3-T3) xK2=S3xK2=S1;
(Z3-T3) xK2=S3xK3=S2;
When changing gear, it is upper one gear margin time S be multiplied by or divided by opposite K values, be changed into next gear margin time, this Loss total time of the margin time again as starting after transformation calculates, the corresponding surplus for being changed into the gear on display screen of shifting gears every time Time.
A kind of 10. impact type electric driven tool monitoring apparatus according to claim 1 or 2, it is characterised in that the temperature prison Control module includes temperature sensor, and temperature sensor is arranged on the internal side of shell of fuselage.
CN201711252451.4A 2017-12-01 2017-12-01 A kind of impact type electric driven tool monitoring apparatus Pending CN107942802A (en)

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Application Number Priority Date Filing Date Title
CN201711252451.4A CN107942802A (en) 2017-12-01 2017-12-01 A kind of impact type electric driven tool monitoring apparatus

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Application Number Priority Date Filing Date Title
CN201711252451.4A CN107942802A (en) 2017-12-01 2017-12-01 A kind of impact type electric driven tool monitoring apparatus

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CN107942802A true CN107942802A (en) 2018-04-20

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1449082A (en) * 2002-03-30 2003-10-15 罗伯特·博施有限公司 Monitoring device, electrical machine tool, current supply device, and associated method of operation
WO2006003455A1 (en) * 2004-07-07 2006-01-12 Five Sides Industrial Ltd Tool monitoring device
WO2008116695A1 (en) * 2007-03-26 2008-10-02 Robert Bosch Gmbh Vibration dosimeter for measuring vibration load
DE102008003484A1 (en) * 2008-01-08 2009-07-09 Marquardt Gmbh Power tool e.g. drilling machine, has working filed light e.g. LED, provided for optically, haptically and acoustically displaying status of parameter lying outside predetermined limit, where filed light is controlled using microprocessor
CN104334319A (en) * 2012-05-25 2015-02-04 罗伯特·博世有限公司 Percussion unit
CN104516367A (en) * 2013-09-26 2015-04-15 南京德朔实业有限公司 Electric tool and threaded piece fastening degree control method
CN205343028U (en) * 2016-02-18 2016-06-29 深圳市贝仕达克电子有限公司 Electric tool safety protection system
CN205734654U (en) * 2016-07-01 2016-11-30 杭州势垒科技有限公司 The automatic control system of electric tool
DE102015226796A1 (en) * 2015-12-29 2016-12-15 Robert Bosch Gmbh Power tool with a data interface
CN106329582A (en) * 2016-08-29 2017-01-11 江苏金丰机电有限公司 AC/DC electric tool
CN107124020A (en) * 2017-06-01 2017-09-01 合肥尚强电气科技有限公司 Battery charging and discharging control system for handheld electric appliance
CN207529177U (en) * 2017-12-01 2018-06-22 陈文理 A kind of impact type electric driven tool monitoring apparatus

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1449082A (en) * 2002-03-30 2003-10-15 罗伯特·博施有限公司 Monitoring device, electrical machine tool, current supply device, and associated method of operation
WO2006003455A1 (en) * 2004-07-07 2006-01-12 Five Sides Industrial Ltd Tool monitoring device
WO2008116695A1 (en) * 2007-03-26 2008-10-02 Robert Bosch Gmbh Vibration dosimeter for measuring vibration load
DE102008003484A1 (en) * 2008-01-08 2009-07-09 Marquardt Gmbh Power tool e.g. drilling machine, has working filed light e.g. LED, provided for optically, haptically and acoustically displaying status of parameter lying outside predetermined limit, where filed light is controlled using microprocessor
CN104334319A (en) * 2012-05-25 2015-02-04 罗伯特·博世有限公司 Percussion unit
CN104516367A (en) * 2013-09-26 2015-04-15 南京德朔实业有限公司 Electric tool and threaded piece fastening degree control method
DE102015226796A1 (en) * 2015-12-29 2016-12-15 Robert Bosch Gmbh Power tool with a data interface
CN205343028U (en) * 2016-02-18 2016-06-29 深圳市贝仕达克电子有限公司 Electric tool safety protection system
CN205734654U (en) * 2016-07-01 2016-11-30 杭州势垒科技有限公司 The automatic control system of electric tool
CN106329582A (en) * 2016-08-29 2017-01-11 江苏金丰机电有限公司 AC/DC electric tool
CN107124020A (en) * 2017-06-01 2017-09-01 合肥尚强电气科技有限公司 Battery charging and discharging control system for handheld electric appliance
CN207529177U (en) * 2017-12-01 2018-06-22 陈文理 A kind of impact type electric driven tool monitoring apparatus

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Application publication date: 20180420