CN201221602Y - Electric tool for automatically regulating speed - Google Patents
Electric tool for automatically regulating speed Download PDFInfo
- Publication number
- CN201221602Y CN201221602Y CNU2008200339453U CN200820033945U CN201221602Y CN 201221602 Y CN201221602 Y CN 201221602Y CN U2008200339453 U CNU2008200339453 U CN U2008200339453U CN 200820033945 U CN200820033945 U CN 200820033945U CN 201221602 Y CN201221602 Y CN 201221602Y
- Authority
- CN
- China
- Prior art keywords
- electric tool
- speed regulation
- automatic speed
- regulation electric
- regulating mechanism
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides an electric tool capable of automatically regulating the speed, which comprises a motor, a transmission device, an electronic sensing device, a microdrive device and at least one control circuit controlling the microdrive device, wherein, the electronic sensing device is used to feed the running parameters back to the control circuit; the transmission device comprises at least a gear box, a clutch, a first retarding mechanism, a second retarding mechanism and a speed control mechanism, wherein, the speed control mechanism and the clutch can be driven by the microdrive device. In such a way, the electric tool is capable of automatically regulating the speed according to different conditions in use, which is more user-friendly.
Description
Technical field
The utility model relates to a kind of automatic speed regulation electric tool, relates in particular to a kind of electric tool that utilizes electronic sensing device to come automatic speed regulation.
Background technique
Electric tool speed or torsion are adjustable to be a kind of technology of popularizing very much, in the process that tightens bolt or screw, just need be suitable for different operating rate and torsion such as electric wrench or screwdriver set in different situations, under the situation that does not run into strong resistance, use the working state of at a high speed low torsion, under the situation that runs into very strong resistance, the work clothes attitude that then needs high torsion low speed, past is often all by regulating manually, therefore just need quit work earlier and carry out the adjusting of speed or torsion again, therefore inconvenience that will be very use the time.
The model utility content
The utility model is in order to overcome above-mentioned shortcoming, but a kind of electric tool of automatic speed regulation is proposed, it comprises the control circuit of motor, transmitting set, electronic sensing device, micro drives device and at least one control micro drives device, described electronic sensing device is used for the running parameter of electric tool is fed back to control circuit, described transmitting set comprises gear-box, clutch, first reducing gear, second reducing gear at least, also comprise speed regulating mechanism, described speed regulating mechanism and described clutch can be driven by described micro drives device.Like this, electric tool in use can carry out automatic speed regulation according to different situations, more helps user's operation.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further detailed.
Fig. 1 shows the structural representation of first preferred implementation of the present utility model;
Fig. 2 shows the explosive view of structure shown in Figure 1;
Fig. 3 shows the fast state structural representation of second preferred implementation of the present utility model;
Fig. 4 shows the lower-speed state structural representation of second preferred implementation of the present utility model;
Embodiment
Present embodiment is a kind of hand held electric drill 100, its basic structure as shown in Figure 1 and Figure 2, mainly the control circuit (not shown) by motor (not shown), transmitting set 1, output shaft 10, electronic sensing device 2, micro drives device 3 and at least one control micro drives device constitutes, electronic sensing device 2 is used for giving control circuit with the operating rate of electric drill or torque feedback, and this control circuit can be arranged in the electric tool handle or in the casing.Transmitting set comprises gear-box 5, clutch 6, first reducing gear, second reducing gear at least, first reducing gear comprises that first planet carrier 71, first planet wheel 72 and first ring gear, 73, the second reducing gears comprise second planet carrier 81, second planet wheel 82 and second ring gear 83.
As shown in Figure 1 and Figure 2, this embodiment also comprises a speed regulating mechanism, and this speed regulating mechanism can be driven by micro drives device 3, and speed regulating mechanism comprises switching construction bearing pin 91,92,93,94, and bearing pin is fixed in the grommet 95; Also comprise a micromachine 3 drivable clutch driving wheels 96, be provided with the skewed slot 97 that bearing pin can move therein in the clutch driving wheel 96, the shell of gear-box is provided with slit 98, and bearing pin can pass slit 98.Micromachine 3 can cooperate 96 rotations of driving clutch driving wheel with duplicate gear 31, moves in skewed slot thereby drive bearing pin.
Speed regulating mechanism in the present embodiment comprises that also first friction plate, 11, the first friction plates 11 are ring washer shape internal spline structure, cooperates with the external splines of first planet carrier 71; Second ring gear 83 is the external splines structure, cooperates with the middle-end internal spline 62 of clutch; Second friction plate, 12, the second friction plates 12 are ring washer shape external splines structure, pass through spline fitted with clutch rear end 63; The 3rd friction plate 13, the three friction plates 13 are ring washer shape internal spline structure, with 61 spline fitted in the clutch front end; The 4th friction plate 14, the four friction plates 14 are ring washer shape external splines structure, with gear-box fore shell 51 spline fitted.
Friction plate in the foregoing description can replace with gear ring, and such implementation belongs to protection domain of the present utility model equally.
If when machine when in use electronic sensor to be that velocity transducer 2 detects the rotating speed of axle head very fast, resistance is less, then this parameter is fed back to control circuit, control circuit control micro motor 3 rotates, micro motor drives duplicate gear 31 and drives bearing pin 9 vertically to left movement, promote clutch to left movement, by resilient pad 15 friction plate 11 and 12 is pressed together, the effect of the frictional force between the friction plate, make second ring gear 83 along with first planet carrier 71 rotates together, and then be output as at a high speed low torsion; Otherwise, the rotating speed that detects axle head when velocity transducer 2 is slower, resistance is big, control circuit will be controlled micro motor 3 counter-rotatings, can make bearing pin 9 move right and then clutch moves to right, same resilient pad 16 makes second layer gear ring 83 be fixed friction plate 13 and 14 extruding, instrument output this moment low speed, high moment of torsion.
Above-mentioned described velocity transducer 2 can replace with a current sensor, the motor current parameter that records is fed back to control circuit, same also can be arranged on the ring gear with a pressure transducer replacement and with it, give control circuit with the pressure feedback of detected certain the one-level ring gear of pressure transducer, thereby come switch operating speed according to the different running parameter of electric tool.
As Fig. 3, shown in Figure 4 is another mode of execution of the present utility model, principle and the above-mentioned mode of execution realized are basic identical, this mode of execution comprises a drive link 24 and a swing rack 25, if when machine when in use electronic sensor to be that velocity transducer 2 detects the rotating speed of axle head very fast, resistance is less, then it is fed back to control circuit, control circuit control micro motor 23 rotates, micro motor drives drive link 24 drive swing racks 25 makes instrument be at a high speed low torsion working state, otherwise the rotating speed that detects axle head when velocity transducer 2 is slower, resistance is big, and control circuit will be controlled micro motor 23 counter-rotating driving drive links 24 drive swing racks 25 makes instrument be in the high torsion working state of low speed.
The utility model is not limited to the above embodiment, any same principle, and those of ordinary skills can rely on other similar techniques schemes that the utility model just can be easy to expect all in protection domain of the present utility model.
Claims (18)
1. automatic speed regulation electric tool, the control circuit that comprises motor, transmitting set, electronic sensing device, micro drives device and at least one control micro drives device, described electronic sensing device is used for the running parameter of electric tool is fed back to control circuit, described transmitting set comprises gear-box, clutch, first reducing gear, second reducing gear at least, it is characterized in that: also comprise speed regulating mechanism, described speed regulating mechanism and described clutch are driven by described micro drives device.
2. automatic speed regulation electric tool as claimed in claim 1, it is characterized in that: described first reducing gear comprises first planet carrier, first planet wheel and first ring gear, and described second reducing gear comprises second planet carrier, second planet wheel and second ring gear.
3. automatic speed regulation electric tool as claimed in claim 2 is characterized in that: described speed regulating mechanism comprises at least one switching construction.
4. automatic speed regulation electric tool as claimed in claim 3, it is characterized in that: described switching construction comprises and is fixed on a bearing pin in the grommet, thereby described micro drives device can drive the clutch axial motion by a described bearing pin of clutch drive wheel.
5. automatic speed regulation electric tool as claimed in claim 4 is characterized in that: described speed regulating mechanism comprises a plurality of gear rings.
6. automatic speed regulation electric tool as claimed in claim 4 is characterized in that: described speed regulating mechanism comprises a plurality of friction plates.
7. automatic speed regulation electric tool as claimed in claim 6 is characterized in that: described speed regulating mechanism comprises first friction plate,
Described first friction plate is a ring washer shape internal spline structure, cooperates with the external splines of first planet carrier.
8. automatic speed regulation electric tool as claimed in claim 7 is characterized in that: described speed regulating mechanism comprises second friction plate,
Described second friction plate is a ring washer shape external splines structure, passes through spline fitted with the clutch rear end.
9. automatic speed regulation electric tool as claimed in claim 8 is characterized in that: described speed regulating mechanism comprises the 3rd friction plate,
Described the 3rd friction plate is a ring washer shape internal spline structure, with clutch front end spline fitted.
10. automatic speed regulation electric tool as claimed in claim 9 is characterized in that: described speed regulating mechanism comprises the 4th friction plate,
Described the 4th friction plate is a ring washer shape external splines structure, with gear-box front end spline fitted.
11. automatic speed regulation electric tool as claimed in claim 10 is characterized in that: described second ring gear is the external splines structure, with clutch middle-end spline fitted.
12. automatic speed regulation electric tool as claimed in claim 11 is characterized in that: described speed regulating mechanism also comprises a resilient pad, and described resilient pad can be driven by the micro drives device.
13. automatic speed regulation electric tool as claimed in claim 3 is characterized in that: described switching construction comprises a drive link, and the micro drives device can drive drive link drive swing rack and move.
14. automatic speed regulation electric tool as claimed in claim 1 is characterized in that: described micro drives device can drive described speed regulating mechanism by duplicate gear.
15. automatic speed regulation electric tool as claimed in claim 1 is characterized in that: described electronic sensing device is the sensor of a measured speed, parameter of velocity can be fed back to control circuit.
16. automatic speed regulation electric tool as claimed in claim 1 is characterized in that: described electronic sensing device is the sensor that can survey electric current, current parameters can be fed back to control circuit.
17. automatic speed regulation electric tool as claimed in claim 1 is characterized in that: described electronic sensing device is a pressure transducer, the parameter that records can be fed back to control circuit.
18. automatic speed regulation electric tool as claimed in claim 1 is characterized in that: described control circuit can be arranged in electric tool handle or the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200339453U CN201221602Y (en) | 2008-03-28 | 2008-03-28 | Electric tool for automatically regulating speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200339453U CN201221602Y (en) | 2008-03-28 | 2008-03-28 | Electric tool for automatically regulating speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221602Y true CN201221602Y (en) | 2009-04-15 |
Family
ID=40575110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200339453U Expired - Fee Related CN201221602Y (en) | 2008-03-28 | 2008-03-28 | Electric tool for automatically regulating speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221602Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102485436A (en) * | 2010-12-03 | 2012-06-06 | 南京德朔实业有限公司 | Electric tool |
| CN105437137A (en) * | 2014-07-23 | 2016-03-30 | 国际商业机器公司 | Screw screw-in method and device |
-
2008
- 2008-03-28 CN CNU2008200339453U patent/CN201221602Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102485436A (en) * | 2010-12-03 | 2012-06-06 | 南京德朔实业有限公司 | Electric tool |
| CN105437137A (en) * | 2014-07-23 | 2016-03-30 | 国际商业机器公司 | Screw screw-in method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1470898B1 (en) | Control system and method for a power tool | |
| CN101578159B (en) | Device for detecting load torque on electric motor | |
| CN104440739B (en) | Power tool | |
| RU2012122755A (en) | DRIVING TOOL | |
| EP2631036A3 (en) | Power tool having rotary input control | |
| EP1738877A3 (en) | Rotary impact power tool | |
| WO2009028565A1 (en) | Drive tool | |
| EP1256308A3 (en) | Dishwashing machine with garbage shredding apparatus | |
| CN102485436B (en) | Electric tool | |
| US20120274254A1 (en) | Machine Tool and Control Procedure | |
| CN201221602Y (en) | Electric tool for automatically regulating speed | |
| EP1184112A4 (en) | Chuck device | |
| CN105619342A (en) | Electric tool | |
| CN104175160B (en) | Power tool | |
| CN202607626U (en) | Electric hammer capable of realizing four functions by single knob | |
| EP2749376A3 (en) | Power tool having rotary input control | |
| JP5496190B2 (en) | Impact tools | |
| CN202752663U (en) | Friction clutch of bench drill feeding mechanism | |
| CN214296108U (en) | Steering switching system suitable for formula car of unmanned driving | |
| CN201774813U (en) | Portable electric hole boring machine | |
| CN202006461U (en) | Electric hammer function switching device | |
| MY153347A (en) | Dual force ram drive for a screw press | |
| EP1182010B1 (en) | Vibrating nutrunner | |
| CN201348001Y (en) | Safe engaging and disengaging gear of hand-held electric hammer | |
| CN201120602Y (en) | Trip mechanism for overcurrent protection of electric hammer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20150328 |
|
| EXPY | Termination of patent right or utility model |