CN102035174A - Security protection controller and electric hand drill using same - Google Patents
Security protection controller and electric hand drill using same Download PDFInfo
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- CN102035174A CN102035174A CN2010105262905A CN201010526290A CN102035174A CN 102035174 A CN102035174 A CN 102035174A CN 2010105262905 A CN2010105262905 A CN 2010105262905A CN 201010526290 A CN201010526290 A CN 201010526290A CN 102035174 A CN102035174 A CN 102035174A
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Abstract
The invention relates to a security protection controller and an electric hand drill using the same. The security protection controller comprises an operated displacement sensor with a rotatable angle, a synchronous tracking, positioning and time delay touch circuit, a power circuit, an enabled circuit and a reset switch, wherein the operated displacement sensor with a rotatable angle is connected with the synchronous tracking, positioning and time delay touch circuit and the power circuit and is respectively conducted by the enabled switch and the reset switch. Compared with the prior art, when the security protection controller provided by the invention is in the working state of the electric hand drill, the security protection controller automatically monitors the moving direction, speed and angle variation of the handle position in real time and synchronously tracks and positions the handle position; and when the moving speed and the angle variation of the handle of the electric hand drill are simultaneously more than the safe set values of the security protection controller, the security protection controller can quickly cut off the power supply, forces a motor to stop rotating, and eliminates potential safety hazards within a germination state to ensure the safety of operation personnel.
Description
Technical field
The present invention relates to the safety protection control field of electric tool, relate in particular to a kind of electric hand drill that is used for the safety protection control device of electric hand drill and uses this safety protection control device.
Background technology
Electric hand drill is the common small sized instrument that power application is punched, existing electric hand drill mainly partly is made up of drill chuck, auger spindle, motor, telophragma decelerator, casing, handle, bat-handle switch and steering gear etc., in actual mechanical process, finish boring work by motor driven drill bit high speed rotating.
As a kind of hand held electric tool, electric hand drill needs the drill bit direction is pressed in practical operation, and provides corresponding balanced support power to the electric hand drill handle, thereby not only labour intensity is big, and exists higher potential safety hazard.Particularly at machinery, metal
The macropore of manufacture field
In the bore operation course of processing, operating personnel are when exerting pressure to drill bit, often can't take into account effective control to electric hand drill handle balanced support force, when balanced support dynamics that the frictional resistance of drill bit provides for the electric hand drill handle greater than operating personnel's arm, the electric hand drill casing can be subjected to electric hand drill motor inertia-activated take advantage of a situation whipping and rapidly the rotation, when electric hand drill handle position
Moment is left-handed to surpass 90 degree, or dextrorotation surpasses 120 when spending, and can cause operating personnel's wrist
Connect injury, have higher potential safety hazard.
Summary of the invention
The present invention be exactly for solve the electric hand drill that exists in the above-mentioned prior art in actual application safety problem and a kind of safety protection control device is provided and uses the electric hand drill of this safety protection control device.
Purpose of the present invention is achieved through the following technical solutions:
A kind of safety protection control device,
Draw together self-operated type angle rotatable displacement transducer, track and localization time-delay synchronously touch-control circuit, power circuit, enable switch and reset switch; Described self-operated type angle rotatable displacement transducer connects synchronous track and localization time-delay touch-control circuit and power circuit, and by enabling the conducting respectively of switch and reset switch; Described self-operated type angle rotatable displacement transducer,
Draw together shell, a central rotating shaft, a pointer center of gravity body and some induced electricity sub-elements; The induced electricity sub-element is the even annular array in the center of circle with the central rotating shaft, and connects in regular turn step by step, constitutes some groups of angular shift detecting units; Pointer center of gravity body links to each other with central rotating shaft and keeps a free end, and utilizes the freely falling body of pointer center of gravity body to move the kinetic energy that changes generation, is that circulatory motion is done around central rotating shaft in the center of circle with the central rotating shaft; The length of pointer center of gravity body equals the distance of the center to center rotating shaft of induced electricity sub-element.
Angle between the described induced electricity sub-element is 20 ° to 60 °; The group number of described angular shift detecting unit is not less than three groups, and the quantity of induced electricity sub-element is the multiple of angular shift groups of sensor elements number.
The free end of described pointer center of gravity body is a permanent magnet, and described induced electricity sub-element is a mistor.
The angular range that described pointer center of gravity body moves is 360 ° of full angle scopes; The angular range that moves when pointer center of gravity body is during greater than the angle of induced electricity sub-element, and pointer center of gravity body breaks away from the detection range of former angular shift detecting unit, enters the detection range of next group angular shift detecting unit.
Described synchronous track and localization time-delay touch-control circuit is the multiple unit control circuit, its group number is corresponding with the group number of angular shift detecting unit/and identical; Every group of synchronous track and localization time-delay touch control unit circuit is the discharge delay circuit; Every group of synchronous track and localization time-delay touch control unit circuit alternately crossed over series connection each other.
The delay time of described synchronous track and localization time-delay touch-control circuit is no more than 2s.
The security response angle value of described safety protection control device is between more than 30 °, in 60 °, and the speed/time from the orientation angle value to the security response angle value is no more than the delay time of synchronous track and localization time-delay touch-control circuit.
A kind of electric hand drill of using above-mentioned safety protection control device,
Draw together drill chuck, auger spindle, motor, telophragma decelerator, casing, handle and bat-handle switch, also
Draw together a safety protection control device; Described safety protection control device is installed in the electric hand drill casing; The self-operated type angle rotatable displacement transducer of described safety protection control device for the center secured in parallel is installed on the inner casing of electric hand drill casing at telophragma decelerator rear, synchronous track and localization time-delay touch-control circuit, the power circuit of described safety protection control device, is enabled switch and reset switch is installed on electric hand drill handle inside with the auger spindle.
Compared with prior art, a kind of electric hand drill that is used for the safety protection control device of electric hand drill and uses this safety protection control device provided by the invention has following beneficial effect:
In the electric hand drill operating state, monitor the handle position in real time automatically
Moving direction, speed and angle change; and it is carried out synchronous track and localization, when translational speed, the angle of electric hand drill handle changed all simultaneously secure setting greater than safety protection controller, safety protection controller can the fast shut-off power supply; the pressure motor stops operating
Potential safety hazard is eliminated in germinating, ensures operating personnel's safety.
Description of drawings
Fig. 1 is the structural representation of the self-operated type angle rotatable displacement transducer of one embodiment of the invention;
Fig. 2 is the circuit diagram of one embodiment of the invention;
Fig. 3 is the electric drill structural representation of one embodiment of the invention.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1-Figure 3,1-safety protection control device, 2-motor, 3-auger spindle, 4-drill chuck, 5-telophragma decelerator, 6-handle, 7-bat-handle switch, 8-casing, 10-self-operated type angle rotatable displacement transducer, 101-central rotating shaft, 102-pointer center of gravity body, 103-pointer center of gravity body free end, enable switch S
1, reset switch S
2, induced electricity sub-element RM
1-RM
12
A kind of safety protection control device 1,
Draw together self-operated type angle rotatable displacement transducer 10, track and localization time-delay synchronously touch-control circuit, power circuit, enable switch S
1With reset switch S
2Self-operated type angle rotatable displacement transducer 10 connects synchronous track and localization time-delay touch-control circuit and power circuit, and by enabling switch S
1With reset switch S
2Conducting respectively; The security response angle value of safety protection control device 1 is between more than 30 °, in 60 °, and the speed/time from the orientation angle value to the security response angle value is no more than the delay time of synchronous track and localization time-delay touch-control circuit.
Self-operated type angle rotatable displacement transducer 10,
Draw together shell, central rotating shaft 101, pointer center of gravity body 102 and 12 induced electricity sub-elements (be example with 12 induced electricity sub-elements, but be not limited in 12 induced electricity sub-elements) RM here
1-RM
12These 12 induced electricity sub-element RM
1-RM
12With central rotating shaft 101 is that the center of circle is even circular arrangement, and the angle of per two induced electricity sub-elements is 30 °; And 12 induced electricity sub-element RM
1-RM
12Connect in regular turn step by step, constitute A, B, three groups of angular shift detecting units of C (be example with three groups of angular shift detecting units, but be not limited in three groups of angular shift detecting units), i.e. RM here
1, RM
4, RM
7, RM
10Constitute A group angular shift detecting unit, RM
3, RM
6, RM
9, RM
12Constitute B group angular shift detecting unit, RM
2, RM
5, RM
8, RM
11Constitute C group angular shift detecting unit.
One end of pointer center of gravity body 102 links to each other with central rotating shaft 101 and keeps a free end 103, is that circulatory motion is done around central rotating shaft 101 in the center of circle with central rotating shaft 101; The length of pointer center of gravity body 102 equals the distance of the center to center rotating shaft 101 of any one induced electricity sub-element, and promptly the free end 103 of pointer center of gravity body 102 just in time hits induced electricity sub-element RM
1-RM
12The center.The free end 103 of pointer center of gravity body 102 is a permanent magnet, induced electricity sub-element RM
1-RM
12Be mistor.
In the operating state, pointer center of gravity body 102 utilizes the drop of self-operated type angle rotatable displacement transducer 10 in the state of drift angle to change the kinetic energy that produces and moves freely, and the angular range that pointer center of gravity body 102 moves is 360 ° of full angle scopes, and induced electricity sub-element RM
1-RM
12Then use as contactless electronic beam switch.The angular range that moves when pointer center of gravity body 102 is during greater than 30 ° of angles between the induced electricity sub-element, and pointer center of gravity body 102 breaks away from the detection range of former angular shift detecting unit, enters the detection range of next group angular shift detecting unit.
The touch-control circuit of track and localization time-delay synchronously is the multiple unit control circuit, and the group number of the angular shift detecting unit that its group number and self-operated type angle rotatable displacement transducer 10 are interior is identical, is divided into a, b, three groups of unit controls circuit of c; Every group of synchronous track and localization time-delay touch control unit circuit is the discharge delay circuit, and wherein, a organizes synchronous track and localization time-delay touch control unit circuit by a switch triode VT
1, a delay capacitor C
3, a current-limiting resistance R
2With a switching diode VD
3Form; B organizes synchronous track and localization time-delay touch control unit circuit by a switch triode VT
2, a delay capacitor C
4, a current-limiting resistance R
3With a switching diode VD
4Form; C organizes synchronous track and localization time-delay touch control unit circuit by a switch triode VT
3, a delay capacitor C
5, a current-limiting resistance R
4With a switching diode VD
5Form.A, b, three groups of synchronous track and localization time-delay touch control unit circuit of c are alternately crossed over series connection each other, and promptly a organizes the switch triode VT in the synchronous track and localization time-delay touch control unit circuit
1Base stage and c organize delay capacitor C in the synchronous track and localization time-delay touch control unit circuit
5Be connected; B organizes the switch triode VT in the synchronous track and localization time-delay touch control unit circuit
2Base stage and a organize delay capacitor C in the synchronous track and localization time-delay touch control unit circuit
3Be connected; C organizes the switch triode VT in the synchronous track and localization time-delay touch control unit circuit
3Base stage and b organize delay capacitor C in the synchronous track and localization time-delay touch control unit circuit
4Be connected.Go back in the circuit
Draw together current-limiting resistance R
5, dropping resistor R
6, bidirectional triode thyristor VS
1With one-way SCR VS
2, one-way SCR VS
2Use as the monostable control switch.Delay capacitor C in the circuit
3, C
4, C
5Separately only can be in the delay time of 2s, driven switch triode VT
1, VT
2, VT
3Conducting.
Power circuit
Draw together the voltage drop element resistance R
1, capacitor C
1, voltage stabilizing element switching diode VD
1, rectifier cell switching diode VD
2And filter element capacitor C
2Form stable after the step-down of AC power process, voltage stabilizing, rectification and the filtering
The stream power supply is self-operated type angle rotatable displacement transducer 10 and subsequent conditioning circuit power supply.
During electric hand drill work, open the switch S of enabling of electric hand drill safety protection control device 1
1, electric hand drill safety protection control device 1 enters operating state, and when electric hand drill safety protection control device 1 was enabled, the pointer center of gravity body 102 on self-operated type angle rotatable displacement transducer 10 central rotating shafts 101 was not fixed in a certain position
, only illustrate here, as, the free end 103 of the pointer center of gravity body 102 on self-operated type angle rotatable displacement transducer 10 central rotating shafts 101 is position of living in A group angular shift detecting unit
Induced electricity sub-element RM
1Conducting, signal power source begin a that is connected with A group angular shift detecting unit is organized delay capacitor C in the synchronous track and localization time-delay touch control unit circuit
3Charging is with the switch triode VT in the circuit
1And and this delay capacitor C
3The switch triode VT of series connection
2, this moment all because of base stage or the one pole of collector electrode get electric can't saturation conduction, one-way SCR VS
2Therefore be in cut-off state.
Electric hand drill is in operating process, and the pointer center of gravity body 102 on self-operated type angle rotatable displacement transducer 10 central rotating shafts 101 can be according to 6 on electric hand drill handle
Move and corresponding sports, the angular range that pointer center of gravity body 102 moves is 360 ° of full angle scopes; The angular range that pointer center of gravity body 102 on self-operated type angle rotatable displacement transducer 10 central rotating shafts 101 moves is greater than induced electricity sub-element RM
1-RM
12During along 30 ° of the average angle of central rotating shaft annular array, pointer center of gravity body 102 can break away from former A group angular shift detecting unit induced electricity sub-element RM
1Detection range, enter to B group angular shift detecting unit induced electricity sub-element RM
12Detection range.The signal power source of B group angular shift detecting unit output can be immediately organized delay capacitor C in the synchronous track and localization time-delay touch control unit circuit to the b that is attached thereto
4, switch triode VT
2And and this delay capacitor C
4The switch triode VT of series connection
3, charging and power supply, simultaneously, former A organizes the delay capacitor C in the synchronous track and localization time-delay touch control unit circuit
3Then by the current-limiting resistance R in the circuit on the same group
2With switching diode VD
3Discharge, realize alternately following the tracks of step by step synchronously, locating what electric hand drill handle motion direction, speed and angle changed.
Pointer center of gravity body 102 on self-operated type angle rotatable displacement transducer 10 central rotating shafts 101, because of the lasting of electric hand drill handle 6 moved, and by induced electricity sub-element RM in the B group angular shift detecting unit
12Detection range enter induced electricity sub-element RM in the C group angular shift detecting unit
11Time during detection range set greater than delay capacitor in the touch-control circuit of track and localization time-delay synchronously delay time " 2s " time, the c that is connected with C group angular shift detecting unit organizes delay time delay capacitor C in the touch control unit circuit of synchronous track and localization
5, switch triode VT
3, charging and power supply, at this moment, this switch triode VT
3Because of the delay capacitor C that connects with it
4Can't provide required operating voltage still to be in cut-off state, meanwhile, b organizes the delay capacitor C in the synchronous track and localization time-delay touch control unit circuit
4Then by the current-limiting resistance R in the element circuit on the same group
3And switching diode VD
4Discharge continues continuity synchronous track and localization is carried out in moving direction, speed and the angle variation of electric hand drill handle.
Otherwise the pointer center of gravity body 102 on self-operated type angle rotatable displacement transducer 10 central rotating shafts 101 is by induced electricity sub-element RM in the B group angular shift detecting unit
12Detection range enter induced electricity sub-element RM in the C group angular shift detecting unit
11The time of detection range set less than delay capacitor in the touch-control circuit of track and localization time-delay synchronously delay time " 2s " time, this c organizes the switch triode VT in the synchronous track and localization time-delay touch control unit circuit
3Base stage can be organized delay capacitor C in the synchronous track and localization time-delay touch control unit circuit by a
3The operating voltage saturation conduction that provides, and through R
6Trigger one-way SCR VS
2Conducting, bidirectional triode thyristor VS
1The control utmost point is because of one-way SCR VS
2Conducting transfer low level to by high level and end, force motor 2 to quit work by powered-down, thereby avoid the rotation rapidly of electric hand drill handle 6 to cause personal injury operating personnel.
When unclamping electric hand drill bat-handle switch 7, can touch the electronic switch S that resets automatically
2Conducting makes one-way SCR VS
2Reset and end, bidirectional triode thyristor VS
1The control utmost point is because of one-way SCR VS
2By and transfer high level conducting once more to by low level.
A kind of electric hand drill of application safety protection controller,
Draw together motor 2, auger spindle 3, drill chuck 4, telophragma decelerator 5, handle 6, bat-handle switch 7 and casing 8, also
Draw together a safety protection control device 1.Safety protection control device 1 is installed in the electric hand drill casing 8; The self-operated type angle rotatable displacement transducer 10 of safety protection control device 1 is on the inner casing of electric hand drill casing 8 at the center secured in parallel rear that is installed in telophragma decelerator 5 with auger spindle 3, synchronous track and localization time-delay touch-control circuit, the power circuit of safety protection control device 1, enables switch S
1With reset switch S
2Be installed on electric hand drill handle 6 inside.This safety protection control device 1 volume is small and exquisite, simple in structure, the original service behaviour of electric hand drill is not constituted any influence.
In the operating state, be 12 induced electricity sub-element RM of the even annular array in the center of circle with central rotating shaft 101
1-RM
12Can be according to 103 of the free ends of pointer center of gravity body 102
Mobile variation conducting in succession, close.Simultaneously, a, b, three groups of synchronous track and localization time-delay touch control unit circuit of c, when the touch control unit circuit is in the time-delay state as long as wherein any one group of synchronous track and localization is delayed time, 102 of pointer center of gravity bodies
Move to when organizing the detection range of the angular shift detecting unit induced electricity sub-element that synchronous track and localization time-delay touch control unit circuit is connected, formerly be in discharge time-delay state synchronization track and localization time-delay touch control unit circuit or be the 3rd group of triode in the synchronous track and localization time-delay touch control unit circuit with another
Get electric saturation conduction, and trigger one-way SCR VS
2Conducting, otherwise, then realize respectively organizing the alternately track and localization that synchronous track and localization time-delay touch control unit circuit changes electric hand drill handle moving direction, speed and angle.
Being equal to of any change of being made in basis of the present invention and know-why, components and parts, replace and technological improvement all should
Be contained within protection scope of the present invention.
More than disclosed only be several specific embodiments of the application, but the application is not limited thereto, any those skilled in the art can think variation, all should drop in the application's the protection range.
Claims (8)
1. a safety protection control device is characterized in that,
Draw together self-operated type angle rotatable displacement transducer, track and localization time-delay synchronously touch-control circuit, power circuit, enable switch and reset switch; Described self-operated type angle rotatable displacement transducer connects synchronous track and localization time-delay touch-control circuit and power circuit, and by enabling the conducting respectively of switch and reset switch; Described self-operated type angle rotatable displacement transducer,
Draw together shell, a central rotating shaft, a pointer center of gravity body and some induced electricity sub-elements; The induced electricity sub-element is the even annular array in the center of circle with the central rotating shaft, and connects in regular turn step by step, constitutes some groups of angular shift detecting units; Pointer center of gravity body links to each other with central rotating shaft and keeps a free end, and utilizes the freely falling body of pointer center of gravity body to move the kinetic energy that changes generation, is that circulatory motion is done around central rotating shaft in the center of circle with the central rotating shaft; The length of pointer center of gravity body equals the distance of the center to center rotating shaft of induced electricity sub-element.
2. a kind of safety protection control device as claimed in claim 1 is characterized in that, the angle between the described induced electricity sub-element is 20 ° to 60 °; The group number of described angular shift detecting unit is not less than three groups, and the quantity of induced electricity sub-element is the multiple of angular shift groups of sensor elements number.
3. a kind of safety protection control device as claimed in claim 1 is characterized in that the free end of described pointer center of gravity body is a permanent magnet, and described induced electricity sub-element is a mistor.
4. a kind of safety protection control device as claimed in claim 1 is characterized in that, the angular range that described pointer center of gravity body moves is 360 ° of full angle scopes; The angular range that moves when pointer center of gravity body is during greater than the angle of induced electricity sub-element, and pointer center of gravity body breaks away from the detection range of former angular shift detecting unit, enters the detection range of next group angular shift detecting unit.
5. a kind of safety protection control device as claimed in claim 1 is characterized in that, described synchronous track and localization time-delay touch-control circuit is the multiple unit control circuit, its group number is corresponding with the group number of angular shift detecting unit/and identical; Every group of synchronous track and localization time-delay touch control unit circuit is the discharge delay circuit; Every group of synchronous track and localization time-delay touch control unit circuit alternately crossed over series connection each other.
6. a kind of safety protection control device as claimed in claim 1 is characterized in that, the delay time of described synchronous track and localization time-delay touch-control circuit is no more than 2s.
7. a kind of safety protection control device as claimed in claim 1; it is characterized in that; the security response angle value of described safety protection control device is between more than 30 °, in 60 °, and the speed/time from the orientation angle value to the security response angle value is no more than the delay time of synchronous track and localization time-delay touch-control circuit.
8. an application rights requires the electric hand drill of 1 described safety protection control device,
Draw together drill chuck, auger spindle, motor, telophragma decelerator, casing, handle and bat-handle switch, it is characterized in that, also
Draw together a safety protection control device; Described safety protection control device is installed in the electric hand drill casing; The self-operated type angle rotatable displacement transducer of described safety protection control device for the center secured in parallel is installed on the inner casing of electric hand drill casing at telophragma decelerator rear, synchronous track and localization time-delay touch-control circuit, the power circuit of described safety protection control device, is enabled switch and reset switch is installed on electric hand drill handle inside with the auger spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010526290 CN102035174B (en) | 2010-10-29 | 2010-10-29 | Security protection controller and electric hand drill using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010526290 CN102035174B (en) | 2010-10-29 | 2010-10-29 | Security protection controller and electric hand drill using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102035174A true CN102035174A (en) | 2011-04-27 |
| CN102035174B CN102035174B (en) | 2013-09-11 |
Family
ID=43887686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010526290 Expired - Fee Related CN102035174B (en) | 2010-10-29 | 2010-10-29 | Security protection controller and electric hand drill using same |
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| Country | Link |
|---|---|
| CN (1) | CN102035174B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255279A (en) * | 2011-05-19 | 2011-11-23 | 深圳市普耐光电科技有限公司 | Anti-theft safety device of electric appliance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105912A (en) * | 1983-11-11 | 1985-06-11 | Sumitomo Electric Ind Ltd | Inclination angle sensor |
| CN1111334A (en) * | 1993-12-28 | 1995-11-08 | 希尔蒂股份公司 | Method and apparatus for avoiding handtool machine from fault of clamping too tight of tool |
| CN2392167Y (en) * | 1999-09-14 | 2000-08-16 | 郑秋豪 | Device for measuring gradient and accleration |
| CN101143261A (en) * | 2007-08-10 | 2008-03-19 | 深圳市景新健身产品有限公司 | Direction sensing device in game body-building device |
-
2010
- 2010-10-29 CN CN 201010526290 patent/CN102035174B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105912A (en) * | 1983-11-11 | 1985-06-11 | Sumitomo Electric Ind Ltd | Inclination angle sensor |
| CN1111334A (en) * | 1993-12-28 | 1995-11-08 | 希尔蒂股份公司 | Method and apparatus for avoiding handtool machine from fault of clamping too tight of tool |
| CN2392167Y (en) * | 1999-09-14 | 2000-08-16 | 郑秋豪 | Device for measuring gradient and accleration |
| CN101143261A (en) * | 2007-08-10 | 2008-03-19 | 深圳市景新健身产品有限公司 | Direction sensing device in game body-building device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255279A (en) * | 2011-05-19 | 2011-11-23 | 深圳市普耐光电科技有限公司 | Anti-theft safety device of electric appliance |
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| Publication number | Publication date |
|---|---|
| CN102035174B (en) | 2013-09-11 |
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