CN102655987A - Hand tool having a counter-oscillation mechanism - Google Patents
Hand tool having a counter-oscillation mechanism Download PDFInfo
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- CN102655987A CN102655987A CN2010800570382A CN201080057038A CN102655987A CN 102655987 A CN102655987 A CN 102655987A CN 2010800570382 A CN2010800570382 A CN 2010800570382A CN 201080057038 A CN201080057038 A CN 201080057038A CN 102655987 A CN102655987 A CN 102655987A
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- Prior art keywords
- eddy current
- cutter
- hand
- antihunter
- magnetic field
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/06—Means for driving the impulse member
- B25D11/064—Means for driving the impulse member using an electromagnetic drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/24—Damping the reaction force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/24—Damping the reaction force
- B25D17/245—Damping the reaction force using a fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/0073—Arrangements for damping of the reaction force
- B25D2217/0076—Arrangements for damping of the reaction force by use of counterweights
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/0073—Arrangements for damping of the reaction force
- B25D2217/0076—Arrangements for damping of the reaction force by use of counterweights
- B25D2217/008—Arrangements for damping of the reaction force by use of counterweights being electronically-driven
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/0073—Arrangements for damping of the reaction force
- B25D2217/0076—Arrangements for damping of the reaction force by use of counterweights
- B25D2217/0084—Arrangements for damping of the reaction force by use of counterweights being fluid-driven
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/141—Magnetic parts used in percussive tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/141—Magnetic parts used in percussive tools
- B25D2250/145—Electro-magnetic parts
Abstract
The invention relates to a hand tool. The hand tool comprises a percussion mechanism (1, 10, 20) and a tool holder (14) operatively connected to the percussion mechanism. The tool holder is preferably designed for separably receiving a tool (11, 12, 13), for example, a chisel. The hand tool comprises a counter-vibration mechanism (39), wherein the counter-vibration mechanism is designed to compensate at least partially for a force generated by the percussion mechanism along a percussion axis (30), in particular as a result of a reciprocating motion. The hand tool comprises at least one eddy current generator (22, 24, 26, 28, 29) and an eddy current receiver (35) mounted so as to be movable along an axis of translation and connected to the counter-vibration mechanism or formed by the counter-vibration mechanism. The eddy current generator is designed to generate a magnetic pulse (77) such that an eddy current can be generated in the eddy current receiver, and according to the eddy current the eddy current receiver can generate a counter-magnetic pulse (78) directed opposite to the magnetic pulse, and thus can be repelled by the eddy current generator and can generate a counter-movement along the axis of translation at least partially compensating for the force.
Description
Technical field
The present invention relates to a kind of hand-held tool, especially jump bit, hammer drill or electronic cutter.Hand-held tool has beater mechanism.Preferably, hand-held tool has the cutter retainer that is connected with the beater mechanism effect.This cutter retainer preferably is configured to especially can receive dividually cutter, for example cuts a hole.Said hand-held tool has antihunter, and wherein said antihunter is configured to compensate at least in part by said beater mechanism along impacting axis especially through moving back and forth the power that produces.
Background technology
In the hand-held tool with antihunter known by prior art, hand-held tool has the drive unit that has eccentric part in the situation of air spring beater mechanism, wherein, and eccentric part and working piston coupling.Drive unit also drives antihunter in the situation of the hand-held tool with antihunter, this antihunter moves back and forth and moves and so pulse of compensation work piston at least in part through the reciprocating motion phase shifting ground that moves back and forth with piston along translated axis line by drive unit.
Summary of the invention
According to the present invention, the hand-held tool that type is mentioned in beginning has at least one vortex generator and is supported movingly and is connected with antihunter along translated axis line with one---or through antihunter formation---eddy current receiver.Preferably; Vortex generator is configured to produce in this wise magnetic field impulse; Make in the eddy current receiver, can produce eddy current, and the eddy current receiver can produce the anti-magnetic field impulse opposite with magnetic field impulse and therefore can be open and compensate the counter of this power at least in part along the translated axis line generation from vortex generator and moves according to eddy current.
Through the antihunter that drives by vortex generator, this antihunter can advantageously take off coupling ground with beater mechanism machinery and driven.The driving of antihunter and phase controlling can advantageously be carried out according at least one sensor signal by control device controllably.
A kind of preferred embodiment in, the eddy current receiver constitutes through antihunter especially as a whole, perhaps antihunter has the eddy current receiver.The eddy current receiver can for example constitute through the good especially plate of electric conductivity, for example copper coin or aluminium sheet, wherein, this plate and antihunter, for example the iron of pref. cylindrical shaping or steel weight connect.The antihunter that constitutes as a whole for example is made up of ferromagnetic material, for example iron or steel especially integratedly.
Hand-held tool a kind of preferred embodiment in, beater mechanism is configured to the eddy current beater mechanism.Preferably, beater mechanism has the beater mechanism eddy current receiver in the detection range that is arranged on vortex generator, preferably is the impact bolt that can constitute with the cutter effect or the form of armature with being connected.
In another embodiment, beater mechanism has a beater mechanism eddy current receiver in the detection range that is arranged on vortex generator that is the cutter form.
The vortex generator preferable configuration is for produce magnetic field impulse in this wise; Make and in beater mechanism eddy current receiver, can produce eddy current; And beater mechanism eddy current receiver can produce the anti-magnetic field impulse with the magnetic field impulse reverse direction according to eddy current, makes beater mechanism eddy current receiver to be open and to produce and impact along impacting axis from vortex generator.
Preferably, the cutter of beater mechanism eddy current receiver form has a good especially plate of electric conductivity in the sphere of action that is arranged on the beater mechanism vortex generator.The plate of conduction is for example processed by copper or aluminium.Through the eddy current beater mechanism of such formation, beater mechanism advantageously need have the moving component that lacks than the air spring beater mechanism.Also can expect a cutter that constitutes integratedly as the eddy current receiver, it for example is made up of iron or steel.
Hand-held tool a kind of preferred embodiment in, the translated axis line of antihunter with impact axis and extend coaxially each other.Can advantageously there be the anti-motion that lever ground produces the pulse of a compensation cutter thus.
A kind of preferred embodiment in, hand-held tool is constructed to drive antihunter and cutter through identical magnetic field impulse.Can advantageously save vortex generator thus.Also advantageously, identical vortex generator can be used to drive antihunter and cutter.
In another preferred embodiment, hand-held tool is constructed to attract the antihunter that constitutes especially ferromagneticly and it is moved again to get back in the initial position by a magnetic field impulse.
A kind of preferred embodiment in, beater mechanism and/or cutter are constructed at least a portion of the impact energy of impacting is converted into cutter around impacting rotatablely moving of axis.Beater mechanism preferably can have cutter for this reason.Cutter, especially cutter can for example have a surface for this reason in a zone that especially is configured to receive magnetic field impulse and produce eddy current, this surface constitutes along impacting axis spirality ground.Through the spiral structure on surface, for beater mechanism eddy current receiver is pushed open from vortex generator, advantageously constitute Distribution of Magnetic Field, this Distribution of Magnetic Field is transmitted rotary pulsed during the repulsion of vortex generator, eddy current receiver and preferred additionally cutter.
Hand-held tool a kind of preferred embodiment in, vortex generator has flatwise coil, the coil windings of this flatwise coil is extended from impacting the radially outward cumulative winding radius of axis with one.Through the formation of vortex generator, vortex generator can be configured with advantageously saving the space especially.
A kind of preferred embodiment in, the coil windings of flatwise coil is made up of twisted wire.Coil especially can produce magnetic field impulse based on kelvin effect especially effectively thus.
Hand-held tool a kind of preferred embodiment in; The coil windings of flatwise coil constitutes on spirality ground along impacting axis in a vertical section in this wise, makes cutter except along the translational motion of impacting axis, carrying out around impacting rotatablely moving of axis.Can make cutter additionally on the rotation round direction, carry out the drilling campaign at least in part thus.
Through the embodiment of flatwise coil, beater mechanism eddy current receiver, especially impact bolt or cutter and can in the zone of end, be configured with flat face, this face is in the sphere of action of vortex generator and towards vortex generator.Also advantageously, the flatwise coil through such formation can be delivered on the cutter rotary pulsed, makes cutter except ballistic motion, also can carry out and rotatablely moves.
In a kind of preferred implementation of hand-held tool, flatwise coil is connected with capacitor in order to produce magnetic field impulse.Flatwise coil and capacitor mutual electromagnetic ground form resonance circuit.Can produce magnetic field impulse especially effectively thus.
In a kind of preferred implementation of hand-held tool, beater mechanism is the air spring beater mechanism.Thus advantageously, the hand-held tool that has an air spring beater mechanism can be provided with antihunter by the antihunter abnormal cost of eddy current transmission cheaply.
A kind of preferred embodiment in, antihunter connects with cutter by air spring and can produce vibration through air spring with cutter.For this reason, the chamber that is surrounded by the antihunter receiving system can further preferably be connected with the chamber that is surrounded by tool fitting through the chamber of managing.Preferably, cutter and antihunter through the chamber or additionally through the pipe the chamber at humorous center of percussion.
Hand-held tool preferably has handgrip, and hand-held tool can keep by an adult hand or with two hands through this handgrip.
The present invention also relates to a kind ofly be used to move to Shaochong and hit ground, the method for the hand-held tool that constitutes of additional drilling ground preferably; The pulse that wherein acts on the impact on the cutter compensates by antihunter at least in part; Wherein, Magnetic field impulse produces according to exciting current and in antihunter, produces eddy current according to magnetic field impulse; Wherein, this eddy current produces and the anti-magnetic field impulse and the antihunter of magnetic field impulse reverse direction move along translated axis line through magnetic field impulse thus in this wise, makes that the pulse that acts on the impact on the cutter is compensated at least in part.
In a kind of preferred implementation of this method; Magnetic field impulse produces eddy current in a beater mechanism eddy current receiver that is connected with the cutter effect; Wherein, Produce with reverse magnetic field impulse that points to of magnetic field impulse and beater mechanism eddy current receiver according to eddy current and to impact along impacting axial-movement and therefore producing, and this impact outputs on the cutter at least indirectly according to magnetic field impulse.Beater mechanism eddy current receiver preferably ties with impact and connects, and wherein, this impact can be delivered on the cutter from impacting bolt.Common cutter is connected with the vortex generator effect through impacting bolt.
In the favourable enforcement of method formed, antihunter drove through identical vortex generator with the beater mechanism eddy current receiver that drives cutter.
Preferably, in the method, at least a portion of the impact energy of impact is converted into cutter around impacting rotatablely moving of axis.Except ballistic motion, can produce the drilling campaign thus.
The present invention describes according to accompanying drawing and additional embodiments now below.Other the favourable embodiment that is used for hand-held tool provides by the characteristic of describing in the dependent claims and by the characteristic of describing at accompanying drawing.
The specific embodiment
Fig. 1 illustrates the embodiment of the beater mechanism 1 that is used for hand-held tool.Hand-held tool can for example be jump bit or electronic cutter.
Beater mechanism 1 has the receiving system 14 that is used for cutter 12.This cutter 12 is configured to cutter in this embodiment.Receiving system 14 is configured to lead to cutting a hole 12 in this wise, makes cutter 12 to move back and forth along impacting axis 30.This receiving system 14 for example is configured to hollow cylinder and surrounds columniform chamber, and cutter, especially cutter can lead in this chamber at least in part.
Beater mechanism 1 also has the eddy current drive unit.This eddy current drive unit has the electric coil that has coil windings, shows to its exemplified coil windings 24 and 26.Coil structure is a flatwise coil, and it has the coil windings by the good especially material of electric conductivity, for example copper one-tenth in this embodiment.The coil windings of coil has the cross section of rectangle in this embodiment.This coil is configured to flatwise coil in this embodiment, and this flatwise coil is connected with coil supporter 22.Coil supporter 22 is for example perhaps formed by ceramic material by the glass fibre that connects through epoxy resin.Flatwise coil and coil supporter 22 extend in a plane of extending perpendicular to impact axis 30 respectively.
Coil with coil windings 24 and 26 is constructed to produce magnetic field impulse with the mode that is flow through by electric current, and this magnetic field impulse can produce eddy current in eddy current receiver 36 in the sphere of action of coil.Eddy current receiver 36 is constructed to the good plate of electric conductivity, and the plate of for example being processed by copper product, this plate are in this embodiment with cutter, especially 12 be connected with cutter.Cutter, especially cut a hole 12 and can constitute by material, for example steel hard, that electric conductivity is poor slightly in this embodiment.
The eddy current that in eddy current receiver 36, produces produces the anti-magnetic field impulse of self, this anti-magnetic field impulse and the magnetic field impulse acting in conjunction that produces by coil, and wherein, the magnetic field impulse of coil and the anti-magnetic field impulse that is produced by eddy current repel each other.Therefore not only causing through repulsion makes cutter 12 move along impacting axis 30; And in the zone of the cutter end of coil, promptly at the region generating shock wave of eddy current receiver 36, this shock wave as along impact shock wave 34, especially compressional wave that axis 30 propagates in cutter 12 from the eddy current receiver towards the chisel edge end motion.
Between cover plate 19 and coil supporter 22, be provided with the piezoelectric element 18 that acceleration transducer, especially dish type constitute along impacting axis 30.The piezoelectric element 18 of this dish type has perforation, and the magnetic line of force of the magnetic field impulse that is produced by coil can pass this perforation.Piezoelectric element 18 is constructed to according to being produced acceleration signal and export this acceleration signal at outlet side via the pressure that cover plate 19 is applied on the piezoelectric element 18 by cutter 12.
Hand-held tool can be for example according to acceleration signal to coil electricity with the emission magnetic field impulse.Therefore, can be when using hand-held tool at this according to the impact that acts on the pressure activated impact tool on cutter 12, especially the chisel edge end.Additionally, according to acceleration signal can detect cutter toward swivel motion and/or the shock wave that on the cutter end, reflects, and according to acceleration signal---for example through another impact of control module control ground-triggering.
Beater mechanism 1 also has antihunter 39, and this antihunter is connected with eddy current receiver 35.This eddy current receiver 35 is made up of electric conductivity good especially material, for example copper in this embodiment.Beater mechanism 1 also has the antihunter receiving system 15 that is connected with coil supporter 22.Antihunter receiving system 15 is configured to antihunter 39 led in chamber 31 along impacting axis 30.Chamber 31 42 is connected with pipe in the end regions of antihunter receiving system 15, wherein, manages 42 encirclement chambeies 33 and chamber 31 is connected with the chamber by tool fitting 14 encirclements in the zone of coil supporter 22.The chamber that is surrounded by tool fitting 14 is connected with the chamber 31 of antihunter receiving system 15 through the chamber 33 of pipe 42 thus.Antihunter receiving system 15 has spring, especially disk spring 44 in the zone of end.
Fig. 2 illustrates the embodiment of the beater mechanism 10 that is used for hand-held tool.This beater mechanism 10 has the parts identical with beater mechanism in Fig. 11, and these parts are respectively equipped with identical Reference numeral.Identical parts have and distinguish identical parts identical functions at the Reference numeral shown in Fig. 1.Beater mechanism 10 can replace beater mechanism 1 and antihunter 39 with antihunter receiving system 15 or additionally be connected with pipe 42.Cutter 13 or the pulse of additionally impacting bolt 25 can be compensated through antihunter 39 at least in part.
Different with the beater mechanism 1 in Fig. 1, the beater mechanism 10 among Fig. 2 has the cutter 13 of cutter as beater mechanism 10.Cutter 13---is different from the cutter 12 in Fig. 1---and is not configured to produce eddy current.
Impacting bolt 25 is constructed to produce eddy current according to the magnetic field impulse that is produced by coil in this embodiment.Impact bolt 25 and have the plate of being processed by the preferred good material of electric conductivity 37 at this, this plate is provided with towards coil ground along impacting axis 30.Plate 37 is connected with impact bolt 25 and forms the part that impacts bolt 25, and this impact bolt for example can be made up of steel except that the eddy current receiver.
Impacting bolt 25 is received and is arranged on movingly in the cutter retainer 14 by cutter retainer 14.Cutter retainer 14 is---different with the cutter retainer 14 in Fig. 1---additionally to have cell winding 16.This cell winding 16 constitutes circlewise and surrounds a chamber, and cutter 13 can be arranged in this chamber at least in part with moving back and forth.Cell winding 16 is configured to detect cutter 13 and promptly passes cell winding 16 along impacting axis 30---motion and produce sensor signal and in this sensor signal of outlet side output by electromagnetic induction.Cell winding 16 can for example be connected with control module, and wherein, control module is constructed to according to sensor signal coil electricity impacted to produce.This can for example carry out so effectively, promptly only impacts on the bolt 25 and therefore is ready to another when travelling forward along impacting to have moved on the direction of axis 30 at coil to be pressed onto fully when cutter 13, and coil 30 just is energized to produce impact.Can change impact energy advantageously, efficiently thus, because the impact energy of output is eliminated through the reciprocating motion of cutter 13 for the reciprocating motion of resisting cutter at least in part too early.With different by acceleration transducer 18; Control module can detect the time-varying process of the eddy current that in beater mechanism eddy current receiver, forms by the coil 52 of---being made up of coil with coil windings 24 and 26 and coil supporter 22---vortex generator, and generation is represented the eddy current signal of eddy current and produced other magnetic field impulse according to eddy current signal---and for example a part of as the seasonal effect in time series of magnetic field impulse.
Fig. 3 illustrates the embodiment of the beater mechanism 20 that is used for hand-held tool.This beater mechanism 20 has the vortex generator that has coil supporter 22, and flatwise coil is arranged on the coil supporter, and the coil windings 28 and 29 in the coil windings of flatwise coil for example is shown.Flatwise coil constitutes in this embodiment in this wise, promptly diametrically more the coil windings of outside have in the upwardly extending size in side of impacting axis 30, this size is greater than the coil windings of the inside more diametrically.Coil can be advantageously formed in spiral-shaped shown in Fig. 4.Spiral-shaped the causing that forms by coil thus: the cutter 11 of beater mechanism 20 can be inserted to rotatablely move in 32, through shock wave 34 cause along translational motion and this stack that rotatablely moves of impacting axis 30.Cutter 11 can be carried out rotatablely moving of drilling simultaneously during impact process.Beater mechanism 20 can replace beater mechanism 1 perhaps additionally to be connected with pipe 42 with antihunter receiving system 15 with antihunter 39.The pulse of cutter 11 can be compensated through antihunter 39 at least in part.
Fig. 4 illustrates the embodiment of coil windings 29 of the outside of the flatwise coil that is used for having illustrated at Fig. 3.
This coil windings 29 is extended on the direction of impacting axis 30 along circumferencial direction cumulatively, makes coil windings form spiral-shaped along impacting axis 30.This spiral-shaped causing: cutter 11 can be carried out when coil electricity and rotatablely move 32.
Fig. 5 illustrates the circuit arrangement of the beater mechanism that is used for hand-held tool, and it is used to produce eddy current, and this eddy current can place ballistic motion with cutter.Circuit arrangement 50 has voltage source 60 for this reason, and this voltage source for example has several kilovolts high pressure, the high pressure of preferred at least 7 kilovolts or at least 10 kilovolts.Voltage source 60 is connected with the anode terminal of IGCT 58 through resistance 62.IGCT 58 has cathode terminal, and this cathode terminal is connected with another terminal of voltage source 60.IGCT 58 has control terminal, and this control terminal is connected with control module 56 through connection line 66.Control module 56 is connected with cell winding 16 through connection line 65 at input side.Control module 56 is connected with acceleration transducer 18 through connection line 64 at input side equally, and this acceleration transducer is set forth as shown in Figures 1 and 2 and.
The anode terminal of IGCT 58 is connected with the first terminal of capacitor 54.Capacitor 54 has second terminal, and this second terminal is connected with the first terminal of coil 52.Coil 52 for example is the part of the vortex generator that in Fig. 1 and 2, illustrated, and this vortex generator is configured to produce magnetic field impulse with the mode that is flow through by electric current.Coil 52 has second terminal, and this second terminal is with the cathode terminal of IGCT 58 and also be connected with voltage source 60.The mode of action of circuit arrangement 50 is described below:
If hand-held tool, for example hand-held tool presses against on the object to be processed through cutter retainer 13 shown in figure 2, cutter 13 is pressed onto to impact on the bolt 25 and through the pressure that is applied on the acceleration transducer and causes that acceleration transducer produces especially voltage of acceleration signal so.Acceleration transducer 18 can send to control device 56 via connection line 64 by degree of will speed up signal.Control device 56 is constructed to, and produces triggering signal and IGCT 58 is sent and triggered to this triggering signal via connection line 66 according to acceleration signal.Control module 56 is connected with coil 52 through connection line 67 and can---additionally or be independent of acceleration transducer 18---produces triggering signal according to the signal change procedure of the voltage that in coil 52, induces through eddy current.Therefore for example can stop: before shock wave turns back to beater mechanism eddy current receiver 36 or 37 or cutter 12 or 13 as yet before the vibration back, IGCT 58 is triggered. Cutter 12 or 13 stroke are for example between three and four millimeters.
Can through IGCT 58 and through the coil 52 that with capacitor be connected in series be discharged its electric charges through resistance 62 with the capacitor 54 of charge charging by voltage source 60 before.The discharge current of capacitor 54---preferred capacitor 54 is arranged in humorous center of percussion with coil 52---is converted into magnetic field impulse at coil 52.
Magnetic field impulse can be by at the beater mechanism eddy current receiver 36 shown in Fig. 1, by beater mechanism eddy current receiver 37 shown in figure 2, receive and produce respectively there eddy current by the eddy current receiver 35 at the antihunter shown in Fig. 1 39; This eddy current can produce anti-magnetic field impulse respectively, makes impact bolt 25 or beater mechanism eddy current receiver 36 to carry out impact along impacting axis 30 with cutter 12.The signal change procedure of the voltage that can in coil 52, respond to according to the sensor signal of acceleration signal, cell winding 16 or through eddy current carries out producing triggering signal again through control module 56.Control module 56 is constructed for the antihunter 39 that constitutes by magnetic field impulse, the especially attraction of direct current magnetic field impulse especially ferromagneticly and back moves in the initial position again.Can trigger IGCT by control module 56 for this reason.
Fig. 6 illustrates the embodiment of the mode of action of the beater mechanism that is used for having illustrated at Fig. 1,2 and 3.Fig. 6 illustrates a device 70 for this reason; This device has coil 76 as the part of vortex generator, an alternating-current voltage source 80 that is connected with coil 76 and the eddy current receiver 74 that the electric conductivity that constitutes is good especially planarly, and this eddy current receiver is connected along the cutter 72 that impacts axis 30 longitudinal extensions with one.Alternating-current voltage source 80 can produce electric current, and this electric current is during the half-wave of alternating voltage---in Fig. 6, illustrating by the arrow on the coil 76---flows through coil 76 and produce magnetic field impulse 77 on the sense of current.Magnetic field impulse 77 causes eddy current 85 in eddy current receiver 74, this eddy current produces the anti-magnetic field impulse 78 opposite with magnetic field impulse 77.
Fig. 7 schematically illustrates the embodiment of the beater mechanism 90 that is used to have the eddy current drive unit with longitudinal section.Beater mechanism 90 has the cup 92 that constitutes ferromagneticly, and wherein, cup is connected with ferromagnetic core 94 magnetic conduction ground in the cup territory, base area of cup 92, makes magnetic flux to flow into the wall of cup from core.Core 94 constitutes in this embodiment cylindrically and at the bottom of cup, extends to a glass edge, makes between the outer cylindrical wall of core and cup inwall, to form---transverse to the air gap that impacts axis 30-annular.The cup inwall is for example bored section shape ground and is constituted, and makes the volume that forms air gap have awl section and a cylindrical inner peripheral surface that surrounds core 94 of a band outer cone side face.
The cup-shaped in this embodiment armature that constitutes 100 that in such formation air gap, hollow cylinder can be set with moving back and forth as the eddy current receiver ferromagneticly, and wherein, the wall of cup 101 of armature 100 sinks in the air gap 96.Armature has in the zone of end and impacts protrudingly 102, and this impacts convexity is configured to impact outputed on the cutter 13 when impact axis 30 moves at armature 100.Core is surrounded by the cylindrical coil of electricity, the magnetic line of force of this cylindrical coil in "on" position in the inside of coil 98 along or be parallel to and impact axis 30 and in core 94, extend.Coil 98 is connected with power supply 106; This power supply is configured to produce alternating-current pulse so that produce and to be used for driving the magnetic field impulse of armature 100 and at armature 100, especially in wall of cup 101, produce eddy current, thus armature from air gap along impacting that axis 30 moves out and can impact being outputed on the cutter 13 through impacting protruding 102.Cutter 13 especially remains in the tool fitting 14 with moving back and forth.Beater mechanism can have except coil 98 and is arranged on core 94 flatwise coil 104 on distolateral, and this flatwise coil for example is connected in series with coil 98 or is connected with power supply 106 with coil 98 parallel connection ground.Flatwise coil 104 can produce additional eddy current at the cup of armature 100 at the end, and this strengthens the impact energy of armature.What the conical by its shape of air gap caused the magnetic field that produced by coil 98 in air gap 96 begins the cumulative magnetic field intensity up to the cup edge of cup 92 at the bottom of cup; Make that along with from air gap 96, coming out to get more and more armature 100 is that stand to remain unchanged or cumulative acts on the driving force on the wall of cup 101.
Fig. 8 is illustrated in the beater mechanism 90 shown in Fig. 7, and wherein armature partly moves out along impact axis 30 from air gap 96 and impacts on the cutter 13.Armature in Fig. 8 shown in the position 100 '.Power supply 106 is constructed to after alternating-current pulse---or after pulse spacing---produces DC pulse and by DC pulse armature is inhaled and get back in the air gap 97 in order to drive armature.Comprise that through producing periodically the overall pulse of alternating-current pulse and DC pulse or pulse are right, can produce periodically impact in succession.
Fig. 9 illustrates the chart with time shaft 110 and amplitude axe 112, the DC pulse after the embodiment of the overall pulse of describing before in this chart, being used for comprises alternating-current pulse 114 and is connected alternating-current pulse 114.Alternating-current pulse 115 has the alternating-current pulse duration 116 and DC pulse 115 has the DC pulse duration 118.The ratio of alternating-current pulse duration 116 and DC pulse duration 114 is 3:1 in this way; Make alternating-current pulse duration 116 of alternating-current pulse 114 be used to produce impact overall pulse 113 the overall pulse duration 3/4ths, and the DC pulse duration 118 of DC pulse 115 are 1/4th of overall pulse duration.Frequency of impact can for example be 50 hertz.The overall pulse duration for example is 20 milliseconds, and the alternating-current pulse duration 116 is that 15 milliseconds and DC pulse duration 118 are 5 milliseconds.The modulating frequency of alternating-current pulse 114, promptly the a-c cycle of alternating-current pulse 114 for example is at least or lucky 10 KHzs.
Claims (17)
1. hand-held tool has beater mechanism (1,10,20) and the cutter retainer (14) that is connected with beater mechanism (1) effect; This cutter retainer is configured to receive dividually cutter (11,12,13); Wherein, said hand-held tool has antihunter (39), and said antihunter (39) is configured to compensate at least in part by said beater mechanism (1; 10,20) along impacting axis (30) especially through moving back and forth the power that produces
It is characterized in that said hand-held tool has at least one vortex generator (22,24,26,28,29,52,76) and an eddy current receiver (35) that is supported movingly and is connected with said antihunter (39) along translated axis line.
2. according to the hand-held tool of claim 1, it is characterized in that said eddy current receiver constitutes through said antihunter.
3. according to the hand-held tool of one of above claim, it is characterized in that said beater mechanism (1) is constructed to the eddy current beater mechanism and has a beater mechanism eddy current receiver (36 in the detection range that is arranged on said vortex generator for this reason; 37); Wherein, said beater mechanism eddy current receiver (36,37) with impact bolt (25), armature (100) or with cutter (12; 11,13) connect.
4. according to the hand-held tool of one of above claim, it is characterized in that the translated axis line of said antihunter and said impact axis (30) extend each other coaxially.
5. according to the hand-held tool of claim 4, it is characterized in that said hand-held tool is configured to drive said antihunter (39) and said cutter (11,12,13) through identical magnetic field impulse (77).
6. according to the hand-held tool of claim 1; It is characterized in that said beater mechanism (20) and/or said cutter (11) are configured to the part of the impact energy of impacting is converted into said cutter (11) around rotatablely move (37) of impacting axis (30).
7. according to the hand-held tool of one of above claim, it is characterized in that said vortex generator (22,24; 26,28,29; 52,76) has flatwise coil, the winding (24 of said flatwise coil; 26,28,29) extend from impacting the radially outward cumulative winding radius of axis (30) with one.
8. according to the hand-held tool of claim 7, it is characterized in that the winding of said flatwise coil (52,76) (24,26,28,29) is made up of twisted wire.
9. according to the hand-held tool of claim 7 or 8, it is characterized in that said flatwise coil (22,26,52,76) is connected with capacitor and said flatwise coil and said capacitor (54) mutual electromagnetic ground formation resonance circuit in order to produce magnetic field impulse (77).
10. according to the hand-held tool of one of above claim, it is characterized in that said antihunter (35; 39) connect by air spring and said cutter (11,12,13) and can with said cutter (11; 12,13) produce vibration through air spring (31,33) together.
11. the hand-held tool according to claim 1 or 2 is characterized in that, said beater mechanism is the air spring beater mechanism.
12. be used to move to the method for the hand-held tool that Shaochong constitutes with hitting, wherein, act on cutter (11; The pulse of the impact 12,13) is compensated by antihunter (35,39) at least in part; Wherein, produce magnetic field impulse and in antihunter (35,39), produce eddy current (85) according to exciting current according to magnetic field impulse; Wherein, said eddy current (85) produces with the anti-magnetic field impulse (78) of said magnetic field impulse (77) reverse direction and makes said antihunter (35,39) through said magnetic field impulse (77; 79) move along translated axis line in this wise, make the pulse that acts on the impact on the cutter compensate at least in part.
13. method according to claim 12; Wherein, Said magnetic field impulse (77) one is connected with cutter (13) effect and with impact the beater mechanism eddy current receiver (37) that bolt (25) is connected in generation eddy current (85); Produce with the anti-magnetic field impulse (78) of magnetic field impulse reverse direction and make said beater mechanism eddy current receiver (37) according to said eddy current (85) according to magnetic field impulse (77; 79) impact along impacting axis (30) motion and producing thus, said impact is outputed on the cutter (13) at least indirectly.
14. the method according to claim 13 is characterized in that, the beater mechanism eddy current receiver (36,37) of said antihunter (39) and the said cutter of driving (11,12,13) drives through identical vortex generator (24,26,28,29,52,76).
15. the method according to claim 13 or 14 is characterized in that, at least a portion of the impact energy of said impact is converted into rotatablely move (37) of said cutter (11) around said impact axis (30).
16. the method according to one of claim 12 to 15 is characterized in that, said vortex generator (24,26,28,29,52,76) produces the magnetic field impulse with cumulative pulse amplitude.
17. the method according to one of claim 12 to 16 is characterized in that, said vortex generator (24; 26,28,29; 52,76,98; 104) produce an overall pulse (113) that is used for producing an impact of sequence of impacts, wherein, said overall pulse comprises the DC pulse (115) that is used to retract said eddy current receiver (100) after an alternating-current pulse (114) that is used to produce eddy current and are connected said alternating-current pulse (14).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009054647.2 | 2009-12-15 | ||
| DE102009054647 | 2009-12-15 | ||
| DE102010043447A DE102010043447A1 (en) | 2009-12-15 | 2010-11-05 | Hand tool with a counter-oscillator |
| DE102010043447.7 | 2010-11-05 | ||
| PCT/EP2010/068450 WO2011082892A1 (en) | 2009-12-15 | 2010-11-30 | Hand tool having a counter-oscillation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102655987A true CN102655987A (en) | 2012-09-05 |
Family
ID=43993019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800570382A Pending CN102655987A (en) | 2009-12-15 | 2010-11-30 | Hand tool having a counter-oscillation mechanism |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2512747A1 (en) |
| CN (1) | CN102655987A (en) |
| DE (1) | DE102010043447A1 (en) |
| WO (1) | WO2011082892A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109318181A (en) * | 2017-07-31 | 2019-02-12 | 英古所连公司 | Percussion tool |
| CN112313479A (en) * | 2018-06-15 | 2021-02-02 | 阿特拉斯·科普柯工业技术公司 | Actuator device for power tool |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10814468B2 (en) | 2017-10-20 | 2020-10-27 | Milwaukee Electric Tool Corporation | Percussion tool |
| WO2019147919A1 (en) | 2018-01-26 | 2019-08-01 | Milwaukee Electric Tool Corporation | Percussion tool |
| DE102021126279A1 (en) * | 2021-10-11 | 2023-04-13 | Technische Universität Bergakademie Freiberg, Körperschaft des öffentlichen Rechts | Machine bit, holding device, removal system and method |
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- 2010-11-05 DE DE102010043447A patent/DE102010043447A1/en not_active Withdrawn
- 2010-11-30 CN CN2010800570382A patent/CN102655987A/en active Pending
- 2010-11-30 EP EP10787371A patent/EP2512747A1/en not_active Withdrawn
- 2010-11-30 WO PCT/EP2010/068450 patent/WO2011082892A1/en active Application Filing
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| FR1449264A (en) * | 1965-10-05 | 1966-08-12 | Hasenclever Ag Maschf | Improvements to automatic hammers |
| GB2086005A (en) * | 1980-10-13 | 1982-05-06 | Minamidate Makoto | Vibration Damping Handle |
| GB2129733A (en) * | 1982-10-27 | 1984-05-23 | Jean Walton | More-vibration-free concrete breakers and percussion drills |
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| CN112313479B (en) * | 2018-06-15 | 2023-05-05 | 阿特拉斯·科普柯工业技术公司 | Actuator device for a power tool |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2512747A1 (en) | 2012-10-24 |
| WO2011082892A1 (en) | 2011-07-14 |
| DE102010043447A1 (en) | 2011-06-16 |
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Application publication date: 20120905 |