CN106695647B - Synchronize the load electric screw driver that tests the speed - Google Patents
Synchronize the load electric screw driver that tests the speed Download PDFInfo
- Publication number
- CN106695647B CN106695647B CN201710065530.8A CN201710065530A CN106695647B CN 106695647 B CN106695647 B CN 106695647B CN 201710065530 A CN201710065530 A CN 201710065530A CN 106695647 B CN106695647 B CN 106695647B
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- China
- Prior art keywords
- screwdriver bit
- hole
- screw driver
- outer rotor
- electric screw
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Classifications
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- 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
-
- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The load electric screw driver that tests the speed is synchronized the invention discloses a kind of, including screwdriver bit, driving shaft, housing, output shaft, motor, retarder and controller, driving shaft is connected with outer rotor by outer rotor set, output shaft has internal rotor by internal rotor magnetic force axis connection, it is respectively arranged with a circle side in outer rotor set and the periphery of internal rotor magnetic force axis, it is provided with corresponding through hole on circle side, one group of infrared sensor that through hole can be passed through to complete infrared docking is provided on the device near through hole and not rotated；The present invention generates waveform by being provided with opposite through hole and infrared sensor, obtains rotating speed, load according to waveform, is used as the feedback of speed control and power control；Simultaneously according to the variation of waveform to determine whether overload so that controller can be quickly detected in the case where electric screw driver overloads and then close motor, as electric screw driver provides quick overload protection.
Description
Technical field
The present invention relates to field of power tools more particularly to it is a kind of synchronize test the speed load electric screw driver.
Background technology
With the development of magnetic material and the appearance of novel magnetic materials, the torque that Magnetic Force Transmission Coupling is transmitted will more
Come bigger, volume will be more and more small, its application range will be more and more wide, in addition to pump and reaction kettle other than, valve, hydraulic cylinder and
Cylinder and some other occasion that need to solve dynamic sealing leakage problem can all be applied.It is contemplated that Magnetic Force Transmission Coupling will
It can be there are one boundless market prospects.
Magnetic Force Transmission Coupling category non-contact type coupling, it is generally made 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 in addition to have the function of yielding coupling buffering absorbing other than,
Maximum feature is that it breaks the structure type of traditional shaft coupling, using completely new magnetic coupling principle, realize driving shaft with from
The transmission of power and torque just can not be carried out between moving axis by being in direct contact, and dynamic sealing can be turned to static seal, realizes 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 limits the mechanism of torque, the electric tool for tightening and unscrewing screw,
It is mainly used for assembly line, is one of the tool of most of manufacturing enterprise's indispensability.
In general, the structure of electric screw driver is by motor, gear reduction unit, clutch apparatus, driver bit and guarantor
The compositions such as sheath, positive and negative rotation power switch and power supply coupling arrangement part.Wherein, motor passes through gear reduction unit and driver bit
It connects, i.e., in current electric screw driver, motor is hardwired with driver bit, and Hard link can be rushed directly when overloading stall
Motor is hit, motor is easily damaged.
Therefore, it is necessary to design electric screw driver that is a kind of contactless and quickly being protected with overload.
Invention content
The present invention provide in order to solve the above problem it is a kind of synchronize test the speed load electric screw driver, using contactless shaft coupling
Device carries out the transmission of power and torque, generates waveform by being provided with opposite through hole and infrared sensor, is obtained according to waveform
Go out rotating speed, load, is used as the feedback of speed control and power control；Judge to be according to the variation of waveform simultaneously
No overload so that controller can be quickly detected in the case where electric screw driver overloads and then close motor, as electronic spiral shell
Silk knife provides quick overload protection.
To achieve the above object, reach said effect, the invention is realized by the following technical scheme：
It is a kind of to synchronize the load electric screw driver that tests the speed, including screwdriver bit, driving shaft, housing, output shaft, motor, retarder
And controller, screwdriver bit and active axis connection, output shaft are connected with retarder, retarder is connected with motor, and driving shaft passes through outer
Rotor set is connected with outer rotor, and output shaft has internal rotor, motor to pass through retarder, driving output by internal rotor magnetic force axis connection
Axis is rotated, and to make internal rotor rotate, under the action of magnetic couplings, outer rotor is rotated together with internal rotor, passes through master
Moving axis drives screwdriver bit rotation, to complete tightening or unscrewing to screw；Meanwhile it being covered in outer rotor outer with internal rotor magnetic force axis
It encloses and is respectively arranged with a circle side, be provided at least one corresponding through hole on circle side, near through hole and do not occur
One group is provided on the device of rotation to pass through through hole to complete the infrared sensor of infrared docking, and infrared sensor is according to perforation
One group of waveform is generated, controller can obtain load according to the duty ratio of waveform, signal frequency, the stability of signal waveform
And rotating speed, be used as speed control, power control feedback and judge whether to overload.
As a kind of preferred embodiment of infrared sensor installation position, outer rotor, which is put on, is connected with coupler sleeve, retarder
Including retarder end cap, infrared sensor includes the infrared transmitter being arranged on coupler sleeve and is arranged in retarder end cap
Infrared remote receiver, coupler sleeve and retarder end cap do not rotate, to make internal rotor and outer rotor turn to centainly
Behind position, the infrared transmitter on coupler sleeve emits infrared signal, through hole is passed through, by the infrared receiver of retarder end cap
Device receives signal, to generate waveform.
As another preferred embodiment of infrared sensor installation position, outer rotor, which is put on, is connected with coupler sleeve, slows down
Device includes retarder end cap, and infrared sensor includes the infrared remote receiver being arranged on coupler sleeve and is arranged in retarder end cap
Infrared transmitter, coupler sleeve and retarder end cap do not rotate, to make internal rotor and outer rotor turn to one
Positioning postpones, and the infrared transmitter on retarder end cap emits infrared signal, and through hole, infrared by coupler sleeve is passed through to connect
It receives device and receives signal, to generate waveform.
Screwdriver bit is replaced for the ease of user, is connected with screwdriver bit attaching/detaching apparatus on the screwdriver bit, screwdriver bit attaching/detaching apparatus includes screwdriver bit
Connector sleeve is arranged on screwdriver bit connector sleeve and for being used for withstanding screwdriver bit when fixing screwdriver bit positioning ball, the screwdriver bit fixation of screwdriver bit
The screwdriver bit positioning sleeve of positioning ball, the screwdriver bit spring being connect with screwdriver bit positioning sleeve；It is provided on screwdriver bit positioning sleeve and is positioned with screwdriver bit
The corresponding opening of steel ball, when replacing, on screwdriver bit positioning sleeve, screwdriver bit spring starts to be compressed to opening user's down force
At corresponding screwdriver bit positioning ball, user takes out screwdriver bit at this time, squeezes screwdriver bit positioning ball and is exposed in opening, is inserted into suitable screwdriver bit
To suitable position, screwdriver bit positioning sleeve is unclamped, screwdriver bit spring starts to spring back so that opening misplaces with screwdriver bit positioning ball, at this time
The sidewall extrusion screwdriver bit positioning ball of screwdriver bit positioning sleeve, to fixed screwdriver bit.
As a kind of preferred embodiment of the present invention, it includes torque adjusting nut to synchronize the load electric screw driver that tests the speed, and is turned round
Square adjusting nut adjusts torque by adjusting spacing distance between outer rotor and internal rotor or coupling area, outer rotor with it is interior
Spacing distance between rotor is remoter or coupling area is fewer, then the torque dynamics generated is smaller, 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 justifies according to NS interleaved modes
Week arrangement, using coaxial type magnet coupler, can provide larger torque dynamics in certain size.
As a kind of preferred embodiment of through hole, the through hole on outer rotor set and running through on interior rotor magnetic axis
Hole number is identical, for infrared sensor pass through through path it is identical or different, position is corresponding, i.e., actively and it is driven on run through
Hole keeps corresponding.
The beneficial effects of the invention are as follows：
It is a kind of synchronize test the speed load electric screw driver reached use by the magnetic couplings of outer rotor and internal rotor
Non-contact type coupling carries out the technique effect that power and torque are transmitted；By being provided with opposite through hole and infrared sensor
Waveform is generated, rotating speed, load are obtained according to waveform, are used as the feedback of speed control and power control；Root simultaneously
According to waveform variation to determine whether overload so that controller in the case where electric screw driver overloads, can be quickly detected into
And motor is closed, as electric screw driver provides quick overload protection；Meanwhile passing through screwdriver bit attaching/detaching apparatus so that user
Suitable screwdriver bit can be replaced at any time, locking torsion is adjusted by torque adjusting nut, to adapt to twisting for various different screws
Tightly or unscrew.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and after coordinating attached drawing to be described in detail such as,
The specific implementation mode of the present invention is shown in detail by following embodiment and its attached drawing.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of the present invention for synchronizing the load electric screw driver that tests the speed；
Fig. 2 is the sectional view of Fig. 1；
Disassemble schematic diagram in the part that Fig. 3 is Fig. 1；
Fig. 4 is the dismantling schematic diagram of Fig. 1 another part；
Fig. 5 is the enlarged diagram of a-quadrant in Fig. 2；
Fig. 6 is the enlarged diagram of B area in Fig. 4.
Wherein, above-mentioned attached drawing includes following reference numeral：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, torque adjusting nut 3, shaft coupling cover for seat 4, driving shaft 41, coupler sleeve
5, infrared sensor 51, housing 6, controller 7, outer rotor set 8, outer rotor 81, through hole 82, internal rotor magnetic force axis 9, internal rotor
91, output shaft 10, retarder 11, retarder set 111, retarder end cap 112, motor shaft 12, motor 13.
Specific implementation mode
It is below with reference to the accompanying drawings and in conjunction with the embodiments, next that the present invention will be described in detail：
As shown in Figure 1, a kind of synchronizing the load electric screw driver that tests the speed, including screwdriver bit 1, screwdriver bit attaching/detaching apparatus 2, torque tune
Nut 3, shaft coupling cover for seat 4, coupler sleeve 5, housing 6, controller 7 are saved, wherein screwdriver bit 1 is connect with screwdriver bit attaching/detaching apparatus 2, torque
Adjusting nut 3 is arranged outside shaft coupling cover for seat 4, and controller 7 is arranged in tail portion, in the present embodiment, passes through rotation torque tune
Nut 3 is saved, changes the coupling area between outer rotor 81 and internal rotor 91, to be adjusted to suitable torque, to adapt to difference
Demand of the screw to different locking torsion.
As shown in Fig. 2, for the sectional view of Fig. 1, coupler sleeve 5 is provided with outer rotor set 8, includes defeated under housing 6
Shaft 10, retarder 11, motor shaft 12, motor 13, wherein output shaft 10 are connect with retarder 11, and motor 13 passes through motor shaft 12
It is connect with retarder 11, after motor 13 starts, after reaching suitable speed by retarder 11, driving output shaft 10 rotates.
As shown in figure 3, for the optical cable of Fig. 1, wherein screwdriver bit attaching/detaching apparatus 2 includes screwdriver bit positioning sleeve 21, screwdriver bit company
Female connector 22, screwdriver bit positioning ball 23, screwdriver bit spring 24, screwdriver bit 1 are connect with screwdriver bit connector sleeve 22, and the setting of screwdriver bit positioning ball 23 exists
On screwdriver bit connector sleeve 22, screwdriver bit positioning sleeve 21 is sleeved on the outside of screwdriver bit connector sleeve 22, and has withstood screwdriver bit when fixed and positioned steel
Pearl 23 is provided with 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 replacing different screwdriver bits 1, on screwdriver bit positioning sleeve 21, screwdriver bit spring 24 starts to be compressed to down force user
Opening corresponds at screwdriver bit positioning ball 23, and user takes out screwdriver bit 1 at this time, squeezes screwdriver bit positioning ball 23 and is exposed in opening, is inserted into
Suitable screwdriver bit unclamps screwdriver bit positioning sleeve 21, screwdriver bit spring 24 starts to spring back to suitable position so that opening is positioned with screwdriver bit
Steel ball 23 misplaces, at this time the sidewall extrusion screwdriver bit positioning ball 23 of screwdriver bit positioning sleeve 21, to fixed screwdriver bit 1.
Simultaneously in figure 3, driving shaft 41 is connect with screwdriver bit attaching/detaching apparatus 2, screwdriver bit 1；Retarder 11 includes that retarder covers 111
With retarder end cap 112.
As shown in figure 4, the inside of the dismantling schematic diagram of Fig. 1 another part, 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 81 magnetic couplings of outer rotor is set on 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, that is, coaxial type magnet coupler is used, although plane synchronizes magnet coupler
Simple in structure, the concentricity of pair two axis is of less demanding when installation, cheap, but due to the torque and disc face of transmission
Product is related, therefore, plane synchronize magnet coupler torque cannot do it is too big, otherwise can cause it is oversized, it is difficult to install,
So in the present embodiment, in order to ensure to provide larger torque dynamics in certain size, using coaxial type magnet coupler.
The enlarged diagram of a-quadrant is as shown in figure 5, the enlarged diagram of B area is as shown in fig. 6, knot in Fig. 4 in fig. 2
Fig. 2,4,5,6 are closed it is found that being provided with infrared transmitter on coupler sleeve 5, retarder end cap 112 is provided with infrared receiver
Device is respectively arranged with a circle side in outer rotor set 8 and the periphery of internal rotor magnetic force axis 9, is provided on circle side multiple corresponding
Through hole 82, outer rotor set is 8 identical with the 82 quantity shape of through hole on internal rotor magnetic force axis 9, position accordingly and multiple is passed through
For infrared sensor between perforation 82（51）What is passed through is identical through path, as shown in figure 5, at this time infrared transmitter, infrared connect
Receive the through hole 82 on device outer rotor set 8, the through hole 82 on internal rotor magnetic force axis 9 is in same horizontal line so that infrared
The infrared signal that transmitter is sent out can pass through the through hole 82 on outer rotor set 8, the through hole 82 on internal rotor magnetic force axis 9, from
And it is received by infrared remote receiver.
Meanwhile not marked in above-mentioned attached drawing 1-6, it is additionally provided with shell in 6 outside of housing, and show torsion on the shell
The graduation apparatus and button of square strength of adjustment, graduation apparatus, button and controller 7 connect.
In conclusion when the present embodiment is in use, being adjusted to by torque adjusting nut 3 according to the screw to be operated
Suitable torque dynamics changes suitable screwdriver bit 1 by screwdriver bit attaching/detaching apparatus 2, presses switch key, starts motor 13 and rotates,
It drives internal rotor 9 to rotate by retarder 11, output shaft 10, internal rotor magnetic force axis 9, under the action of magnetic couplings, drives outer
Rotor 81 rotates, 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 rotate, because the driving shaft 41 that outer rotor 81 is connected needs certain torsional forces
Degree so that rotated synchronously between internal rotor 91 and outer rotor 81 with deviateing initial position, at this point, running through on outer rotor set 8
Hole 82 forms certain offset with the through hole 82 on internal rotor magnetic force axis 9, and during rotation, infrared remote receiver is rotating
To the infrared signal that can receive infrared transmitter transmitting when through hole 82, i.e., according to infrared and through hole 82 relative position energy
Variable signal is generated, signal waveform is analyzed using controller 7, rotating speed, the duty of signal can be calculated by signal frequency
Than reflecting the deviation distance between internal rotor 91 and outer rotor 81, the band to calculate magnet coupler carries situation.
It can be used as the feedback of speed control and power control with situation and rotary speed information is carried；When motor 13 occurs
When overload, acute variation occurs for signal waveform, and controller 7 can be quickly detected and then close motor 13, to play
Carry protection.
The second embodiment of the present invention changes infrared transmitter and infrared remote receiver on the basis of preferred embodiment
Infrared remote receiver is arranged on coupler sleeve 5 for installation position, and infrared transmitter is arranged on retarder end cap 112.
The third embodiment of the present invention changes the setting of through hole 82, will be preferably implemented on the basis of preferred embodiment
Example in " between multiple through holes 82 for infrared sensor 51 pass through through path it is identical " replace with " and outer rotor cover 8 or interior
Run through path difference for what infrared sensor 51 passed through between corresponding multiple through holes 82 on rotor magnetic axis 9 ", for the ease of
Illustrate, the present embodiment outer rotor set 8 be respectively provided on internal rotor magnetic force axis 9 there are three through hole 82, cover 8 in outer rotor at this time
On successively be known as the first through hole, the second through hole, third through hole, interior rotor magnetic axis 9 successively be known as the 4th through hole,
5th through hole, the 6th through hole, wherein running through path successively between the first through hole, the second through hole, third through hole
Successively decrease, successively decreasing successively through path between the 4th through hole, the 5th through hole, the 6th through hole, and the first through hole and
The position of four through holes is corresponding and identical through path, and the second through hole is corresponding with the position of the 5th through hole and runs through path phase
Together, third through hole it is corresponding with the position of the 6th through hole and through path it is identical, rotate forward when, pass through three through path according to
When the secondary through hole 82 to successively decrease, generated duty ratio is also successively decreased successively, and in reversion, it is different through path across three
When through hole 82, generated duty ratio is incremented by successively, generated letter when so as to according to 13 forward or reverse of motor
Number waveform difference of courses for detecting the positive and negative rotation of motor 13, in above 3rd embodiment, as long as on same circle side
Through hole 82 on path not symmetrically so that generated signal waveform is different when the positive and negative rotation of motor 13,
For the equivalent embodiment of the present embodiment.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the present invention in any form；It is all
The those of ordinary skill of the industry can be shown in by specification attached drawing and described above and swimmingly implement the present invention；But it is all
Those skilled in the art without departing from the scope of the present invention, are done using disclosed above technology contents
The equivalent variations of a little variation, modification and evolution gone out are the equivalent embodiment of the present invention；Meanwhile it is all according to the present invention
Substantial technological still falls within the skill of the present invention to the variation, modification and evolution etc. of any equivalent variations made by above example
Within the protection domain of art scheme.
Claims (7)
1. a kind of synchronizing the load electric screw driver that tests the speed, including screwdriver bit（1）, drive screwdriver bit（1）The driving shaft of rotation（41）, it is outer
Set（6）, output shaft（10）, driving output shaft（10）The motor of rotation（13）With motor（13）Connected retarder（11）And
The controller of control circuit（7）, it is characterised in that：The driving shaft（41）Pass through outer rotor set（8）It is connected with outer rotor（81）,
The output shaft（10）Pass through internal rotor magnetic force axis（9）It is connected with and outer rotor（81）The internal rotor of magnetic couplings（91）, described
Outer rotor set（8）With internal rotor magnetic force axis（9）Periphery be respectively arranged with a circle side, be provided on circle side at least one opposite
The through hole answered（82）, in through hole（82）Through hole can be passed through by being provided with one group on the device nearby and not rotated（82）
Complete the infrared sensor of infrared docking（51）.
2. according to claim 1 synchronize the load electric screw driver that tests the speed, it is characterised in that：The outer rotor set（8）
On be connected with coupler sleeve（5）, the retarder（11）Including retarder end cap（112）, the infrared sensor（51）Including
It is arranged in coupler sleeve（5）On infrared transmitter and be arranged in retarder end cap（112）Infrared remote receiver.
3. according to claim 1 synchronize the load electric screw driver that tests the speed, it is characterised in that：The outer rotor set（8）
On be connected with coupler sleeve（5）, the retarder（11）Including retarder end cap（112）, the infrared sensor（51）Including
It is arranged in coupler sleeve（5）On infrared remote receiver and be arranged in retarder end cap（112）Infrared transmitter.
4. according to claim 1 synchronize the load electric screw driver that tests the speed, it is characterised in that：The screwdriver bit（1）Upper company
It is connected to screwdriver bit attaching/detaching apparatus（2）, the screwdriver bit attaching/detaching apparatus（2）Including screwdriver bit connector sleeve（22）, be arranged in screwdriver bit connector 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）And 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.
5. according to claim 1 synchronize the load electric screw driver that tests the speed, it is characterised in that：It is described synchronize test the speed it is negative
It includes torque adjusting nut to carry electric screw driver（3）, the torque adjusting nut（3）By adjusting outer rotor（81）With internal rotor
（91）Between spacing distance or coupling area adjust torque.
6. according to any one of claims 1 to 5 synchronize the load electric screw driver that tests the speed, it is characterised in that：Described interior
Rotor（91）Outer circumference, outer rotor（81）Inner circumferential portion be respectively provided with magnet, the internal rotor（91）Turn with outer
Son（81）On magnet working face align, the magnet is even number pole, and according to NS interleaved mode circumferential arrangements.
7. according to any one of claims 1 to 5 synchronize the load electric screw driver that tests the speed, it is characterised in that：In outer rotor
Set（8）On through hole（82）With in interior rotor magnetic axis（9）On through hole（82）Quantity is identical, for infrared sensor（51）
What is passed through is identical through path, and position is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065530.8A CN106695647B (en) | 2017-02-06 | 2017-02-06 | Synchronize the load electric screw driver that tests the speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065530.8A CN106695647B (en) | 2017-02-06 | 2017-02-06 | Synchronize the load electric screw driver that tests the speed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106695647A CN106695647A (en) | 2017-05-24 |
| CN106695647B true CN106695647B (en) | 2018-08-10 |
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ID=58910371
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710065530.8A Active CN106695647B (en) | 2017-02-06 | 2017-02-06 | Synchronize the load electric screw driver that tests the speed |
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| Country | Link |
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| CN (1) | CN106695647B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3710769C1 (en) * | 1987-03-31 | 1988-09-29 | Datz Hermann Dr | Magnetic end-face rotary coupling (clutch) |
| CN2245830Y (en) * | 1995-07-30 | 1997-01-22 | 朱向阳 | Electromagnetism-planet driving infinitely speed variator |
| CN201483434U (en) * | 2009-06-19 | 2010-05-26 | 倪锦波 | Brushless electric screwdriver electromagnetic induction type automatic shutdown structure |
| CN101870097A (en) * | 2010-05-21 | 2010-10-27 | 浙江大学 | Electric screw driver having magnetic force overload protector |
| CN103507012A (en) * | 2012-06-26 | 2014-01-15 | 常州武进长城工具有限公司 | Electromagnetic type fixed torque spanner |
| CN206484475U (en) * | 2017-02-06 | 2017-09-12 | 苏州全丰精密机械有限公司 | Synchronously test the speed load electric screw driver |
-
2017
- 2017-02-06 CN CN201710065530.8A patent/CN106695647B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3710769C1 (en) * | 1987-03-31 | 1988-09-29 | Datz Hermann Dr | Magnetic end-face rotary coupling (clutch) |
| CN2245830Y (en) * | 1995-07-30 | 1997-01-22 | 朱向阳 | Electromagnetism-planet driving infinitely speed variator |
| CN201483434U (en) * | 2009-06-19 | 2010-05-26 | 倪锦波 | Brushless electric screwdriver electromagnetic induction type automatic shutdown structure |
| CN101870097A (en) * | 2010-05-21 | 2010-10-27 | 浙江大学 | Electric screw driver having magnetic force overload protector |
| CN103507012A (en) * | 2012-06-26 | 2014-01-15 | 常州武进长城工具有限公司 | Electromagnetic type fixed torque spanner |
| CN206484475U (en) * | 2017-02-06 | 2017-09-12 | 苏州全丰精密机械有限公司 | Synchronously test the speed load electric screw driver |
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| Publication number | Publication date |
|---|---|
| CN106695647A (en) | 2017-05-24 |
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