CN106625371A - Double-pulse feedback type electric screwdriver - Google Patents
Double-pulse feedback type electric screwdriver Download PDFInfo
- Publication number
- CN106625371A CN106625371A CN201710065502.6A CN201710065502A CN106625371A CN 106625371 A CN106625371 A CN 106625371A CN 201710065502 A CN201710065502 A CN 201710065502A CN 106625371 A CN106625371 A CN 106625371A
- Authority
- CN
- China
- Prior art keywords
- screwdriver bit
- magnet
- outer rotor
- internal rotor
- screw driver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
- H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Abstract
The invention discloses a double-pulse feedback type electric screwdriver. The double-pulse feedback type electric screwdriver comprises a bit, a driving shaft, an outer sleeve, an output shaft, a motor, a speed reducer and a controller. The driving shaft is connected with an outer rotor through an outer rotor sleeve. The output shaft is connected with an inner rotor through an inner rotor magnetic shaft. A detector assembly detecting rotation of the outer rotor is arranged on the periphery of the outer rotor sleeve. A detector assembly detecting rotation of the inner rotor is arranged on the periphery of the inner rotor magnetic shaft. According to the double-pulse feedback type electric screwdriver, two groups of waveforms are generated through the arranged detector assemblies, and the respective rotation speeds and the respective loads are obtained according to the waveforms and used as feedback on speed control and power control; whether overload happens or not is judged according to the comparison of the two groups of waveforms, so that under the condition of overload, the controller can rapidly detect overload and then switches off the motor, and rapid overloading protection is provided for the electric screwdriver; and whether the bit is overloaded or motor stalling happens can be further judged, and therefore a user can conveniently conduct the effective improvement in time according to the specific fault of the screwdriver.
Description
Technical field
The present invention relates to field of power tools, more particularly to a kind of dipulse feedback electric screw driver.
Background technology
With the development and the appearance of novel magnetic materials of magnetic material, the moment of torsion of Magnetic Force Transmission Coupling transmission will more
Come bigger, volume will be more and more little, its range of application will be more and more wide, in addition to pump and reactor, valve, hydraulic cylinder and
Cylinder and some other occasion that need to solve dynamic sealing leakage problem all can be applied.It is contemplated that Magnetic Force Transmission Coupling will
Have a boundless market prospects.
Magnetic Force Transmission Coupling belongs to non-contact type coupling, and it is typically made up of inside and outside 2 magnets, inner magnet be transmitted
Part is connected, and outer magnet is connected with force piece.Magnetic Force Transmission Coupling except with yielding coupling buffer absorbing function in addition to, its
Maximum the characteristics of is that it breaks traditions the version of shaft coupling, using brand-new magnetic coupling principle, realize driving shaft with from
The transmission of power and torque just can not carried out by directly contact between moving axis, and dynamic sealing can be turned to static seal, realize that zero lets out
Leakage.Therefore it is widely used in the occasion for having particular/special requirement to leakage.
Electric screw driver is equipped with adjusting and limiting the mechanism of moment of torsion, for tightening and unscrewing the electric tool of screw,
It is mainly used in assembly line, is one of indispensable instrument of most of manufacturing enterprise.
In general, the structure of electric screw driver by motor, gear reduction unit, clutch apparatus, driver bit and protective case,
Rotating power switch and power supply coupling arrangement part etc. are constituted.Wherein, motor is connected by gear reduction unit with driver bit,
In i.e. current electric screw driver, motor is hardwired with driver bit, and Hard link can directly impact electricity when stall is transshipped
Machine, is easily damaged motor.
Therefore, it is necessary to design electric screw driver that is a kind of contactless and quickly protecting with overload.
The content of the invention
The present invention feeds back electric screw driver for a kind of dipulse of offer that solves the above problems, using non-contact type coupling come
Carry out the transmission of power and torque, be provided by detector module to produce two groups of waveforms, according to waveform draw respective rotating speed,
Load, is used as the feedback of speeds control and Power Control；While being judged whether according to the contrast of two groups of waveforms
Overload so that controller in the event of overloading, can be quickly detected and then close motor, provide quickly for electric screw driver
Overload protection；And can determine whether out be screwdriver bit overload or motor rotation blockage, be easy to user to be carried out according to concrete failure and
When effectively improve.
For achieving the above object, the effect above is reached, the present invention is achieved through the following technical solutions：
A kind of dipulse feeds back electric screw driver, including screwdriver bit, driving shaft, overcoat, output shaft, motor, decelerator and control
Device, screwdriver bit is connected with driving shaft, and output shaft and decelerator connect, decelerator and motor connection, and driving shaft is by outer rotor set company
Outer rotor is connected to, output shaft is connected with internal rotor by internal rotor magnetic force axle, motor drives output shaft to carry out turning by decelerator
Dynamic, so that internal rotor is rotated, in the presence of magnetic couplings, outer rotor is rotated together with internal rotor, is driven by driving shaft
Screwdriver bit is rotated, so as to complete tightening or unscrewing to screw；The periphery of outer rotor set is provided with one group of detection outer rotor to rotate
Detector module, the periphery of internal rotor magnetic force axle is provided with the detector module that one group of detection internal rotor is rotated, detector
Component is rotated with internal rotor, outer rotor and produces pulse, the controller dutycycle of waveform, signal frequency according to produced by two pulses
Rate, the stability of signal waveform can draw load and rotating speed, be used as speeds control, the feedback of Power Control and
Judge whether overload.
Used as a kind of preferred embodiment of detector module, detector module includes Hall element and at least one magnet,
Magnet is placed on the periphery of outer rotor set and internal rotor magnetic force axle, and Hall element is placed on the opposite side of magnet, wherein magnet
When going to the position of Hall element placement, will be because of changes of magnetic field, and cutting magnetic line be subject to, Hall element will be defeated
Go out pulse signal.
Used as a kind of preferred embodiment of detector module, detector module is infrared anti-including infrared sensor and at least one
Region is penetrated, infrared sensor includes infrared transmitter and infrared remote receiver, and infrared external reflection region is placed on outer rotor set with interior turn
The periphery of sub- magnetic force axle, infrared sensor is placed on the opposite side in infrared external reflection region, and infrared transmitter sends infrared signal,
After running into infrared external reflection region, reflection infrared signal to infrared remote receiver is received, so as to produce pulse.
Used as a kind of preferred embodiment of detector module set location, outer rotor puts and is connected with coupler sleeve, decelerator
Including decelerator end cap, the sensor in detector module be separately positioned on coupler sleeve and decelerator end cap on, shaft coupling
Set and decelerator end cap do not rotate, so that internal rotor and outer rotor are after certain position is turned to, in coupler sleeve
With the sensor on decelerator end cap, in the presence of triggering device, so as to produce waveform.
As a kind of preferred embodiment of magnet, the magnet on outer rotor set and the magnet quantity on internal rotor magnetic force axle
Identical, position is corresponding, and the length of relevant position is identical, is easy to be compared analysis to two waveforms.
As the further optimization of magnet, on outer rotor set with internal rotor magnetic force axle plural magnetic is provided with
Iron, is arranged on magnet that outer rotor puts in length not symmetrically, is arranged on the magnet on internal rotor magnetic force axle in length
On not symmetrically, the waveform for so occurring when motor is rotated and reverse difference can detect motor just with this
Reversion.
Screwdriver bit is changed for the ease of user, screwdriver bit attaching/detaching apparatus are connected with the screwdriver bit, screwdriver bit attaching/detaching apparatus include screwdriver bit
Adapter sleeve, it is arranged on screwdriver bit adapter sleeve and for fixing when the screwdriver bit positioning ball of screwdriver bit, screwdriver bit are fixed for withstanding screwdriver bit
The screwdriver bit positioning sleeve of positioning ball and the screwdriver bit spring of screwdriver bit positioning sleeve connection；It is provided with screwdriver bit positioning sleeve and screwdriver bit positioning
The corresponding opening of steel ball, when changing, on screwdriver bit positioning sleeve, screwdriver bit spring starts to be compressed to opening user's down force
At correspondence screwdriver bit positioning ball, now user takes out screwdriver bit, and extruding screwdriver bit positioning ball is exposed on opening, inserts suitable screwdriver bit
To suitable position, screwdriver bit positioning sleeve is unclamped, screwdriver bit spring starts resilience so that opening and the dislocation of screwdriver bit positioning ball, now
The sidewall extrusion screwdriver bit positioning ball of screwdriver bit positioning sleeve, so as to fixed screwdriver bit.
Used as a kind of preferred embodiment of the present invention, dipulse feedback electric screw driver includes moment of torsion adjusting nut, and moment of torsion is adjusted
Section nut adjusts moment of torsion, outer rotor and internal rotor by adjusting spacing distance or coupling area between outer rotor and internal rotor
Between spacing distance it is more remote or coupling area is fewer, then the moment of torsion dynamics for producing is less, otherwise bigger.
As a kind of preferred embodiment of magnet coupler, in the inner circumferential portion point of the outer circumference of internal rotor, outer rotor
Not Zhuan You magnet, internal rotor aligns with the magnet working face on outer rotor, and magnet is even number pole, and is justified according to NS interleaved modes
Week arrangement, using coaxial type magnet coupler, can provide larger moment of torsion dynamics in certain size.
The invention has the beneficial effects as follows：
A kind of dipulse feeds back electric screw driver, by outer rotor and the magnetic couplings of internal rotor, has reached using contactless
Shaft coupling is carrying out the technique effect of power and torque transmission；Two groups of detector modules are provided by, so as to produce two groups of waveforms,
Size is carried according to the rotating speed and band that waveform respectively obtains internal rotor and outer rotor, speeds control and Power Control is used as
Feedback；While judging whether overload according to the contrast situation of two groups of waveforms so that the feelings that controller transships in electric screw driver
Under condition, motor can be quickly detected and then close, as electric screw driver provides quick overload protection；And can further sentence
Break and screwdriver bit overload or motor rotation blockage, be easy to user timely and effectively to be improved according to concrete failure；Meanwhile, by criticizing
Head attaching/detaching apparatus so that user can at any time change suitable screwdriver bit, and locking torsion is adjusted by moment of torsion adjusting nut, so as to suitable
Answer tightening or unscrewing for various different screws.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after,
The specific embodiment of the present invention is shown in detail in by following examples and its accompanying drawing.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram that dipulse according to the present invention feeds back electric screw driver；
Fig. 2 is the profile of Fig. 1；
Fig. 3 disassembles schematic diagram for the part of Fig. 1；
Fig. 4 disassembles schematic diagram for Fig. 1 another part；
Fig. 5 is the enlarged diagram of a-quadrant in Fig. 2；
Fig. 6 is the enlarged diagram in B regions in Fig. 4.
Wherein, above-mentioned accompanying drawing is marked including drawings described below：Screwdriver bit 1, screwdriver bit attaching/detaching apparatus 2, screwdriver bit positioning sleeve 21, screwdriver bit connect
Female connector 22, screwdriver bit positioning ball 23, screwdriver bit spring 24, moment of torsion adjusting nut 3, shaft coupling cover for seat 4, driving shaft 41, coupler sleeve
5th, Hall element 51, overcoat 6, controller 7, outer rotor set 8, outer rotor 81, magnet 82, internal rotor magnetic force axle 9, internal rotor
91st, output shaft 10, decelerator 11, decelerator set 111, decelerator end cap 112, motor shaft 12, motor 13.
Specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail：
As shown in figure 1, a kind of dipulse feeds back electric screw driver, including screwdriver bit 1, screwdriver bit attaching/detaching apparatus 2, moment of torsion adjusting nut 3,
Shaft coupling cover for seat 4, coupler sleeve 5, overcoat 6, controller 7, wherein screwdriver bit 1 are connected with screwdriver bit attaching/detaching apparatus 2, moment of torsion adjusting nut
3 are arranged on outside shaft coupling cover for seat 4, and controller 7 is arranged on afterbody, in the middle of the present embodiment, by rotation torque adjusting nut 3,
Change the coupling area between outer rotor 81 and internal rotor 91, so as to adjust to suitable moment of torsion, to adapt to different screws to not
With the demand of locking torsion.
As shown in Fig. 2 for the profile of Fig. 1, in coupler sleeve 5 outer rotor set 8 is provided with, include under overcoat 6 defeated
Shaft 10, decelerator 11, motor shaft 12, motor 13, wherein output shaft 10 are connected with decelerator 11, and motor 13 passes through motor shaft 12
It is connected with decelerator 11, after motor 13 starts, is reached after suitable speed by decelerator 11, drives output shaft 10 to rotate.
As shown in figure 3, for the optical cable of Fig. 1, wherein screwdriver bit attaching/detaching apparatus 2 include that screwdriver bit positioning sleeve 21, screwdriver bit connects
Female connector 22, screwdriver bit positioning ball 23, screwdriver bit spring 24, screwdriver bit 1 is connected with screwdriver bit adapter sleeve 22, and screwdriver bit positioning ball 23 is arranged on
On screwdriver bit adapter sleeve 22, screwdriver bit positioning sleeve 21 is enclosed within the outside of screwdriver bit adapter sleeve 22, and screwdriver bit positioning steel has been withstood when fixed
Pearl 23, is provided with the opening corresponding with screwdriver bit positioning ball 23, screwdriver bit spring 24 and screwdriver bit positioning sleeve on screwdriver bit positioning sleeve 21
21 connections, when different screwdriver bits 1 are changed, on screwdriver bit positioning sleeve 21, screwdriver bit spring 24 starts to be compressed to down force user
At opening correspondence screwdriver bit positioning ball 23, now user takes out screwdriver bit 1, and extruding screwdriver bit positioning ball 23 is exposed on opening, insertion
Suitable screwdriver bit unclamps screwdriver bit positioning sleeve 21 to suitable position, and screwdriver bit spring 24 starts resilience so that opening and screwdriver bit positioning
Steel ball 23 misplaces, now the sidewall extrusion screwdriver bit positioning ball 23 of screwdriver bit positioning sleeve 21, so as to fixed screwdriver bit 1.
In figure 3, driving shaft 41 is connected with screwdriver bit attaching/detaching apparatus 2, screwdriver bit 1 simultaneously；Decelerator 11 includes decelerator set 111
With decelerator end cap 112.
As shown in figure 4, Fig. 1 another part disassembles schematic diagram, the inside of wherein outer rotor set 8 is equipped with outer rotor 81,
The inner circumferential portion of outer rotor 81 is equipped with magnet, and the internal rotor 91 with the magnetic couplings of outer rotor 81 is set with output shaft 10,
The outer circumference of internal rotor 91 is equipped with magnet, and internal rotor 91 aligns with the magnet working face on outer rotor 81, and magnet is
Even number pole, and according to NS interleaved mode circumferential arrangements, i.e., using coaxial type magnet coupler, although plane synchronization magnet coupler
Simple structure, it is less demanding to the axiality of two axles during installation, it is cheap, but the torque and disc face due to transmitting
Product is relevant, therefore, it is too big that the moment of torsion of plane synchronization magnet coupler can not do, and can otherwise cause oversized, installation difficulty,
So in the present embodiment, in order to ensure to provide larger moment of torsion dynamics in certain size, using coaxial type magnet coupler.
In fig. 2 the enlarged diagram of a-quadrant is as shown in figure 5, the enlarged diagram in B regions is as shown in fig. 6, knot in Fig. 4
Close Fig. 2,4,5,6 to understand, on coupler sleeve 5 and decelerator end cap 112 Hall element 51 is provided with, in outer rotor 8 are covered
A circle side is respectively arranged with the periphery of internal rotor magnetic force axle 9, on circle side multiple magnet 82 are placed with, in outer rotor 8 are covered
Identical with the quantity of magnet 82 on internal rotor magnetic force axle 9, position size is identical, and on outer rotor set 8 with internal rotor magnetic force axle 9
Size length is also identical between respective magnet 82, as shown in figure 5, now outer rotor covers the connection of the magnet 82 on 8 and opposite side
Hall element 51 on axle device set 5 forms one group of detector module, and the magnet 82 on internal rotor magnetic force axle 9 subtracts with opposite side
Hall element 51 on fast device end cap 112 forms another group of detector module, place when magnet 82 goes to Hall element 51
Position when, will be because of by changes of magnetic field, and cutting magnetic line, Hall element 51 will output pulse signal.
Meanwhile, do not mark in above-mentioned accompanying drawing 1-6, shell is additionally provided with the outside of overcoat 6, and torsion is shown on shell
The graduation apparatus and button of square strength of adjustment, its graduation apparatus, button and controller 7 connect.
In sum, the present embodiment when in use, according to the screw to be operated, by moment of torsion adjusting nut 3, adjust to
Suitable moment of torsion dynamics, by screwdriver bit attaching/detaching apparatus 2, changes suitable screwdriver bit 1, presses switch key, starts motor 13 and rotates,
Drive internal rotor 9 to rotate by decelerator 11, output shaft 10, internal rotor magnetic force axle 9, in the presence of magnetic couplings, drive outer
Rotor 81 is rotated, and drives screwdriver bit 1 to rotate by driving shaft 41, completes screwing or unclamp to screw.
When internal rotor 91 and outer rotor 81 are rotated, because the driving shaft 41 that outer rotor 81 is connected needs certain torsional forces
Degree so that carry out synchronous axial system to deviate initial position between internal rotor 91 and outer rotor 81, now, the magnet on outer rotor set 8
82 form certain skew with the magnet 82 on internal rotor magnetic force axle 9, and during rotation, outer rotor covers 8 with internal rotor magnetic
The Hall element 51 of power axle 9 can produce pulse signal when magnet 82 is turned to, i.e., according to Hall element 51 and magnet 82
Relative position can produce variable signal, signal waveform is analyzed using controller 7, by signal frequency can calculate turn
Speed, the deviation distance that the time difference that dutycycle occur in two signals is reflected between internal rotor 91 and outer rotor 81, i.e., according to accounting for
Sky carries situation than the band that magnet coupler is calculated with phase difference.
The feedback as speeds control and Power Control is can be used to load situation and rotary speed information；When two groups of signal
Waveform is compared, and is normal work during waveform similarity, when waveform produces acute variation, when there is notable difference in two waveforms,
Illustrate that overload occurs in screwdriver bit 1, cause screwdriver bit 1, outer rotor 81 to stop operating, now the Hall element 51 and magnetic of outer rotor set 8
Iron 82 does not export pulse in fixed position, perseverance output pulse or perseverance, and now under the drive of motor 13, internal rotor 91 according to
So ceaselessly rotate, change rapidly with the magnetic field in the air gap between outer rotor 81, internal rotor 91, outer rotor 81 magnet simultaneously
Demagnetization is filled by other side, heat is produced, temperature can rapidly rise to more than 100 degrees Celsius in the short time, so as to cause magnet to move back
Magnetic, magnet coupler is scrapped, and arranges multiple magnet 82 to coordinate with Hall element 51, and within the extremely short time, controller 7 can be with
It is quickly detected and then closes motor 13, it is to avoid the phenomenon of magnet demagnetization occur, so as to serve overload protection.
In the state of two groups of signal waveforms are stablized in one, that is, illustrate that outer rotor 81, internal rotor 91 are in stopping
The dynamic state of rotation stop, now, Hall element 51 does not export arteries and veins with magnet 82 in fixed position, perseverance output pulse or perseverance
Punching, so that two groups of signal waveform is in a stable state, now, the controlled device 7 of motor 13 controls still to export torsion
Square, and the rotating speed of motor 13 is 0, i.e. there is stall in motor 13, controller 7 is quickly detected and then closes motor 13, so as to rise
To rotation-clogging protection, what this single group waveform produced by single group detector module to be learnt, user enters according to two groups of waveforms
Row contrast is simultaneously analyzed, and is that screwdriver bit 1 transships or the stall of motor 13 so as to effectively distinguish, and is easy to user to be entered according to concrete failure
Row timely and effectively improves.
The second embodiment of the present invention, is to reflect infrared by the equivalence replacement of magnet 82 on the basis of preferred embodiment
Infrared external reflection region, be the infrared sensing for including infrared transmitter and infrared remote receiver by the equivalence replacement of Hall element 51
Device, i.e., be provided with one group of infrared detection device assembly on outer rotor set 8 with internal rotor magnetic force axle 9, and infrared transmitter sends red
External signal, after infrared external reflection region is run into, reflection infrared signal to infrared remote receiver is received, so as to produce pulse.
The third embodiment of the present invention, on the basis of preferred embodiment, changes magnet 82
Arrange, by " and size is long between respective magnet 82 on outer rotor set 8 and internal rotor magnetic force axle 9 in preferred embodiment
Degree is also identical " " and size length is different between outer rotor set 8 and respective magnet 82 on internal rotor magnetic force axle 9 " are replaced with,
For convenience of description, the present embodiment is provided with three magnet 82 on outer rotor set 8 with internal rotor magnetic force axle 9, outside now
Rotor set 8 on successively be referred to as the first magnet, the second magnet, the 3rd magnet, internal rotor magnetic force axle 9 successively be referred to as the 4th magnet,
5th magnet, the 6th magnet, wherein the length between the first magnet, the second magnet, the 3rd magnet is successively decreased successively, the 4th magnet,
Length between 5th magnet, the 6th magnet is successively decreased successively, and the first magnet is corresponding with the position of the 4th magnet and length is identical,
Second magnet is corresponding with the position of the 5th magnet and length is identical, and the 3rd magnet is corresponding with the position of the 6th magnet and length phase
Together, when rotating forward, during the magnet 82 successively decreased successively through three length, produced dutycycle is also successively decreased successively, and in reversion
When, during through the three different magnet 82 of length, produced dutycycle is incremented by successively, such that it is able to be rotated forward according to motor 13
Or produced signal waveform is different during reversion, for detecting the rotating of motor 13, of courses, the 3rd embodiment of the above
In, as long as the magnet 82 on same circle side is not symmetrical in length so that produced letter during the rotating of motor 13
Number waveform difference, is the Equivalent embodiments of the present embodiment.
The fourth embodiment of the present invention, on the basis of second embodiment, changes infrared external reflection region so as in same circle
Infrared external reflection region on side is not symmetrical in length so that produced signal waveform is not during the rotating of motor 13
Together, successively measuring the rotating of motor 13.
Of course, two groups of detector modules that test internal rotor 91 is rotated with outer rotor 81 can also be to differ, that is, survey
Examination internal rotor 91 adopts infrared detection, test outer rotor 81 to adopt Hall sense using hall sensing or test internal rotor 91
Should, test outer rotor 81 adopts infrared detection institute, so formed the 5th, sixth embodiment belong to preferred embodiment or the
The equivalent integers of two embodiments, with the 5th, sixth embodiment the positive and negative of motor 13 is detected with reference to the 3rd, fourth embodiment
Turn, the seven, the eight embodiments for so being formed belong to the equivalent integers of 3rd embodiment or fourth embodiment.
The above, only presently preferred embodiments of the present invention not makees any pro forma restriction to the present invention；It is all
The those of ordinary skill of the industry can shown in by specification accompanying drawing and the above and swimmingly implement the present invention；But, it is all
Those skilled in the art are done in the range of without departing from technical solution of the present invention using disclosed above technology contents
A little change, modification and the equivalent variations for developing for going out, are the Equivalent embodiments of the present invention；Meanwhile, it is all according to the present invention's
Change, modification and differentiation of any equivalent variations that substantial technological is made to above example etc., still fall within the skill of the present invention
Within the protection domain of art scheme.
Claims (9)
1. a kind of dipulse feeds back electric screw driver, including screwdriver bit（1）, overcoat（6）, motor（13）And the control of control circuit
Device processed（7）, it is characterised in that：The screwdriver bit（1）It is connected with the driving shaft for rotating it（41）, the driving shaft（41）By outer
Rotor set（8）It is connected with outer rotor（81）；The motor（13）By decelerator（11）It is connected with output shaft（10）, the output
Axle（10）By internal rotor magnetic force axle（9）It is connected with and outer rotor（81）The internal rotor of magnetic couplings（91）, the outer rotor set
（8）Periphery be provided with one group of detection outer rotor（81）The detector module of rotation, the internal rotor magnetic force axle（9）Periphery set
It is equipped with one group of detection internal rotor（91）The detector module of rotation.
2. dipulse according to claim 1 feeds back electric screw driver, it is characterised in that：The detector module is included suddenly
That sensor（51）With at least one magnet（82）, the magnet（82）It is placed on outer rotor set（8）With internal rotor magnetic force axle（9）
Periphery, the Hall element（51）It is placed on magnet（82）Opposite side.
3. dipulse according to claim 1 feeds back electric screw driver, it is characterised in that：The detector module includes red
Outer sensor and at least one infrared external reflection region, the infrared sensor includes infrared transmitter and infrared remote receiver, described
Infrared external reflection region is placed on outer rotor set（8）With internal rotor magnetic force axle（9）Periphery, the infrared sensor is placed on infrared
The opposite side of reflector space.
4. dipulse according to claim 1 feeds back electric screw driver, it is characterised in that：The outer rotor set（8）Upper company
It is connected to coupler sleeve（5）, the decelerator（11）Including decelerator end cap（112）, the sensor in the detector module puts
Put in coupler sleeve（5）Upper and decelerator end cap（112）On.
5. according to the arbitrary described dipulse feedback electric screw driver of claim 2, it is characterised in that：In outer rotor set（8）On
Magnet（82）With in internal rotor magnetic force axle（9）On magnet（82）Quantity is identical, and position is corresponding, the length phase of relevant position
Together.
6. dipulse according to claim 5 feeds back electric screw driver, it is characterised in that：In the outer rotor set（8）With
Internal rotor magnetic force axle（9）On be provided with plural magnet（82）, it is arranged on outer rotor set（8）On magnet（82）Growing
On degree not symmetrically, it is arranged on internal rotor magnetic force axle（9）On magnet（82）It is not symmetrical in length.
7. according to the arbitrary described dipulse feedback electric screw driver of claim 1 to 6, it is characterised in that：The screwdriver bit（1）On
It is connected with screwdriver bit attaching/detaching apparatus（2）, the screwdriver bit attaching/detaching apparatus（2）Including screwdriver bit adapter sleeve（22）, be arranged on screwdriver bit adapter sleeve
（22）Above and for fixing screwdriver bit（1）Screwdriver bit positioning ball（23）, screwdriver bit（1）It is used for withstanding screwdriver bit positioning ball when fixed
（23）Screwdriver bit positioning sleeve（21）With screwdriver bit positioning sleeve（21）The screwdriver bit spring of connection（24）；The screwdriver bit positioning sleeve（21）On
It is provided with and screwdriver bit positioning ball（23）Corresponding opening.
8. according to the arbitrary described dipulse feedback electric screw driver of claim 1 to 6, it is characterised in that：The dipulse is anti-
Feedback electric screw driver includes moment of torsion adjusting nut（3）, the moment of torsion adjusting nut（3）By adjusting outer rotor（81）With internal rotor
（91）Between spacing distance or coupling area adjusting moment of torsion.
9. according to the arbitrary described dipulse feedback electric screw driver of claim 1 to 6, it is characterised in that：In the internal rotor
（91）Outer circumference, outer rotor（81）Inner circumferential portion be respectively provided with magnet, the internal rotor（91）With outer rotor
（81）On magnet working face align, the magnet is even number pole, and according to NS interleaved mode circumferential arrangements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065502.6A CN106625371B (en) | 2017-02-06 | 2017-02-06 | Dipulse feeds back electric screw driver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065502.6A CN106625371B (en) | 2017-02-06 | 2017-02-06 | Dipulse feeds back electric screw driver |
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| CN106625371A true CN106625371A (en) | 2017-05-10 |
| CN106625371B CN106625371B (en) | 2018-08-10 |
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| CN201710065502.6A Active CN106625371B (en) | 2017-02-06 | 2017-02-06 | Dipulse feeds back electric screw driver |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294278A (en) * | 2017-08-18 | 2017-10-24 | 迪百仕电机科技（苏州）有限公司 | One kind resets motor |
| CN108809186A (en) * | 2018-07-05 | 2018-11-13 | 珠海格力电器股份有限公司 | A kind of motor control method and system for realizing that load operation conditions judge |
| CN110636921A (en) * | 2017-05-17 | 2019-12-31 | 阿特拉斯·科普柯工业技术公司 | Electric pulse tool |
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| CN101870097A (en) * | 2010-05-21 | 2010-10-27 | 浙江大学 | Electric screw driver having magnetic force overload protector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110636921A (en) * | 2017-05-17 | 2019-12-31 | 阿特拉斯·科普柯工业技术公司 | Electric pulse tool |
| CN107294278A (en) * | 2017-08-18 | 2017-10-24 | 迪百仕电机科技（苏州）有限公司 | One kind resets motor |
| CN108809186A (en) * | 2018-07-05 | 2018-11-13 | 珠海格力电器股份有限公司 | A kind of motor control method and system for realizing that load operation conditions judge |
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| CN106625371B (en) | 2018-08-10 |
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