CN201128146Y - Output state switching mechanism - Google Patents
Output state switching mechanism Download PDFInfo
- Publication number
- CN201128146Y CN201128146Y CNU2007203061040U CN200720306104U CN201128146Y CN 201128146 Y CN201128146 Y CN 201128146Y CN U2007203061040 U CNU2007203061040 U CN U2007203061040U CN 200720306104 U CN200720306104 U CN 200720306104U CN 201128146 Y CN201128146 Y CN 201128146Y
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- Prior art keywords
- gag
- hammering
- jackshaft
- seat
- output
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- 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.)
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Abstract
The utility model relates to an output pattern shifting device, which comprises a power input unit, a clutch unit, a power output unit and a spring. The clutch unit matching with the spring is arranged between the power input unit and the power output unit. The clutch unit comprises a clutch gasket and a limit ring, and the clutch gasket is connected to an intermediate shaft of the power input unit; the power output unit comprises an output shaft with a negative hammer block and a hammer seat with a positive hammer block; when the limit ring is operated to move towards the axis of the clutch gasket and when the limit ring is embedded with the clutch gasket, the intermediate shaft can synchronously drive the hammer seat, a limit ring and the output shaft to rotate continuously to output power; when the limit is operated to move towards the direction opposite to the clutch gasket, and when the limit ring separates from the clutch gasket, the intermediate shaft can drive the hammer seat to rotate, and in turn, the hammer seat drives the output shaft to rotate, and then when the output shaft is resisted, the hammer seat is limited by a steel ball inside the intermediate shaft and presses the spring downwards, and then the counterforce of the spring drives the hammer seat to rotate to restore the position, thereby achieving the reciprocation of the hammer seat and intermittently providing the power output for the rotating and the hammering of the output shaft.
Description
Technical field
The utility model relates to a kind of electric tool that is applied to, can be at the rotation outputting power, and the structure of switching between rotation time hammering outputting power.
Background technology
Become known for boring, the electric tool of work such as lock, its structure is that the power with motor is delivered to output shaft via gear train, slows down or the speed changing function of speedup to reach; In addition, in order to allow screw lock tightlyer, or the screw of locking can successfully be unloaded, some bores, electric tool of lock usefulness also possesses impact function, lock screw tighter with moment, or make screw lax so that unload in the moment of unloading screw at lock screw.
Electric tool with impact function known today, its mechanism includes motor, first planetary gearsets, has the clutch discs of central gear, second planetary gearsets, power transmission shaft, jackshaft, hammering seat and output shaft; When described clutch discs moves axially to primary importance, make power transmission shaft be linked to second planetary gearsets, and power transmission shaft engages with output shaft, this moment, motor via first planetary gearsets, second planetary gearsets, power transmission shaft and output shaft output, can use power as electric drill to carry out low speed rotation; When described clutch discs moves axially to the second place, described power transmission shaft separates with second planetary gearsets and output shaft simultaneously, this moment, motor was exported power via first planetary gearsets, second planetary gearsets, power transmission shaft, jackshaft, hammering seat and output shaft, to carry out high speed rotation and hammering simultaneously, can use as the impact type screwdriver.
Yet aforementionedly be used for switching rotation or impact the switching device shifter of output kenel, its structure is comparatively complicated, cause manufacture higher.
The utility model content
Technical problem to be solved in the utility model is to solve the rotation of existing electric tool or the switching device shifter of the output kenel that rotation is impacted simultaneously, its structure is complicated, so that the higher shortcoming of manufacturing cost, the output kenel switching device shifter that provides a kind of structure more to simplify.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of output kenel switching device shifter is provided, and it includes:
The power input block, include jackshaft, the external diameter surface of this jackshaft is provided with the external spiral groove, and inserted steel ball at this external spiral groove, this jackshaft also is provided with planetary gear, this planetary gear is used for and is connected in central gear engagement in the gear train of motor, makes that jackshaft is able to be driven rotation by motor;
Clutch unit comprises the locating snap ring that gag with fitting portion and inner diameter wall mask have axially extended groove, and this gag is connected in described jackshaft, and described fitting portion can be slidingly matched with this groove; Locating snap ring is provided with pull bar, and the user can operate this pull bar and move by the axial straight line of locating snap ring, so control this groove and telescoping part from or chimeric mutually;
Power take-off unit, comprise output shaft with passive hammering piece and hammering seat with active hammering piece, the internal diameter of this hammering seat is provided with the inside spin groove, described jackshaft is arranged in the internal diameter of this hammering seat, and make this steel ball be matched with this inside spin groove, therefore, during the jackshaft rotation, be able to drive the rotation of hammering seat by this steel ball; The external diameter of this hammering seat is provided with axially extended raised line, and this raised line is snug fit at the groove of described locating snap ring, therefore, also can drive the locating snap ring rotation during rotation of hammering seat; Described output shaft and this jackshaft axially make up each other and are slidingly matched, therefore, when active hammering piece and passive hammering piece radially to being in contact with one another at once, and drive the output shaft rotation by active hammering seat;
Spring is located between this gag and the hammering seat, and the two ends of this spring apply elastic force to this gag and hammering seat.
Described locating snap ring is operated to move axially toward gag and makes locating snap ring and gag mutual when chimeric, and the jackshaft that is activated rotation is driven this hammering seat, locating snap ring and output shaft synchronously and continues to rotate outputting power; Described locating snap ring is operated toward the direction in contrast to gag and moves axially, when locating snap ring and gag are separated from each other, the jackshaft that is driven in rotation is driven this hammering seat rotation, drive the output shaft rotation by the hammering seat again, when output shaft is subjected to resistance, the hammering seat is subjected to steel ball restriction in the jackshaft and down descends pressing spring, because of driving the hammering seat, spring reaction power rotates back to reposition again, causing the hammering seat constantly to move back and forth, and intermittently output shaft is provided the power output of rotation, hammering.
Compared with prior art the beneficial effect that the utility model had is: output kenel switching device shifter of the present utility model, its clutch unit cooperates this spring to be located between power input block and the power take-off unit, and this clutch unit has the structure that more traditional arrangement of clutch is more simplified, the user moves as long as operate this clutch unit forward or backward in rectilinear direction simply, just can control this power take-off unit and rotate with outputting power constantly, or rotation the time also produces the hammering action.
Description of drawings
Figure 1A is the three-dimensional exploded view of the main element syntagmatic of demonstration the utility model switching device shifter;
Figure 1B is the three-dimensional exploded view of another angle of Figure 1A;
Fig. 2 is the stereogram of the state after the subelement of demonstration the utility model switching device shifter is made up;
Fig. 3 A makes up the stereogram of back outward appearance for the embodiment that shows the utility model switching device shifter;
Fig. 3 B is another angle stereogram of Fig. 3 A;
When Fig. 4 A separated with locating snap ring for demonstration gag of the present utility model, output shaft was subjected to the embodiment section plan of hammering piece bump;
Fig. 4 B is after the output shaft shown in Fig. 4 A is subjected to resistance, the embodiment section plan that the hammering seat presses down spring;
Fig. 5 when showing that gag of the present utility model and locating snap ring are chimeric, the embodiment section plan that locating snap ring, hammering seat and output shaft are rotated by the jackshaft driving synchronously.
Among the figure
1 power input block, 11 jackshafts, 111 external spiral grooves, 112 steel balls, 113 seat boards, 1131 locating holes, 12 planetary gears, 13 pins, 2 clutch units, 21 locating snap rings, 211 grooves, 22 gags, 220 centre bores, 221 fitting portions, 222 locating pieces, 23 first pads, 230 centre bores, 231 breach, 24 second pads, 25 pull bars, 3 springs, 4 power take-off units, 41 hammering seats, 411 centre bores, 412 raised lines 413 are hammering piece 42 balls 43 ball pads 44 output shafts 441 passive hammering piece 5 shells initiatively
The specific embodiment
Following conjunction with figs. and component symbol are done more detailed description to embodiment of the present utility model, so that those skilled in the art can implement after studying this specification carefully according to this.
At first consult Figure 1A and Figure 1B, the output kenel switching device shifter that the utility model provides includes: power input block 1, clutch unit 2, spring 3, power take-off unit 4, and be used for shell 5 that aforementioned each unit and element are coated.
Wherein, described power input block 1 includes jackshaft 11, and the external diameter surface of this jackshaft 11 is provided with external spiral groove 111, and inserts steel ball 112 in this external spiral groove 111; At present embodiment, described external spiral groove 111 has two, in each bar external spiral groove 111 steel ball 112 is set respectively; One end of described jackshaft 11 is provided with two and is positioned between forward and backward position and seat board 113, two seat boards 113 parallel to each other and is pivoted with three planetary gears 12 altogether with three backing pins 13, and the seat board 13 that is positioned at the place ahead then is provided with most locating holes 1131; This power input block 1 is provided in to be installed in the electric tool; Described electric tool includes motor, and the gear train (described motor and gear train are all not shown in the diagram) that is connected in motor, this gear train includes and is used for and the central gear of this three planetary gears engagement, therefore, when the motor energising starts, be able to drive jackshaft 11 rotations via planetary gear 12.Described planetary gear 12 be combined between two seat boards 13 state as shown in Figure 2.
Described clutch unit 2 includes gag 22 and locating snap ring 21, this gag 22 has the centre bore 220 that can supply jackshaft 11 to pass, the relative both sides of the external diameter of gag 22 are extended the fitting portion 221 that is provided with L-shaped bar respectively, and are provided with the locating piece 222 of most the locating holes 1131 on the corresponding described seat board 113 below gag 22; Jackshaft 11 is passed the centre bore 220 of gag 22, and when making gag 22 place on the seat board 113, allow locating piece 222 embed locating holes 1131, make gag 22 can't rotate relatively with jackshaft 11.In the inside diameter ranges that is surrounded between described two fitting portions 221, also can be for placing first pad 23 and second pad 24 in regular turn; Wherein, the area of first pad 23 is bigger, and its centre bore 230 directly is positioned on the gag 22 after being passed by jackshaft 11, also is provided with the breach 231 that passes through for fitting portion 221 at the symmetrical external diameter edge of first pad 23; The area of second pad 24 is less, and it directly is positioned on first pad 23 after being passed by jackshaft 11.Described locating snap ring 21 has the internal diameter that can hold described power input block 1, the symmetrical wall of its internal diameter has axially extended groove 211, this groove 221 can be slidingly matched wherein for described fitting portion 221, the external diameter of locating snap ring 21 can be embedded pull bar 25, can control locating snap ring 21 along axially the moving back and forth of jackshaft 11 by operation pull bar 25, thereby whether control fitting portion 221 inserts groove 211.
The embodiment of spring 3 of the present utility model is the compression spring, and it directly is placed on second pad 24 after being passed by jackshaft 11.
Described power take-off unit 4 includes hammering seat 41 and output shaft 44; This hammering seat 41 is a cylindrical body, its center has through hole, the internal diameter of this through hole is formed with two inside spin grooves 411, and the front end face of hammering seat 41 is provided with two active hammering pieces 413 that are positioned at symmetric position, and the external diameter of hammering seat 41 is provided with two and is positioned at symmetrical both sides and axially extended raised line 412.The lower end external diameter of this output shaft 44 is provided with two passive hammering pieces 441 that are positioned at symmetric position, and the lower end of this output shaft 44 has and can penetrate axial valley for jackshaft 11; This hammering seat 41 is combined in the inside diameter ranges of locating snap ring 21, make jackshaft 11 pass the through hole of hammering seat 41, and enter the recess of output shaft 44 lower ends, and then steel ball 112 is matched with between external spiral groove 111 and the inside spin groove 411, make raised line 412 be snug fit at the groove 211 of locating snap ring 21 simultaneously.The inner tip of hammering seat 41 is then inserted most balls 42 and ball pad 43 in regular turn, makes the two ends of spring 3 contact this ball pad 43 and second pad 24 respectively.The last outside that again 5 groups on shell is placed in aforementioned each unit and element.
Fig. 3 A and Fig. 3 B show the mode of appearance after aforementioned each unit and the element combination, and after its combination was finished, the passive hammering piece 441 of output shaft 44 was between two active hammering pieces 413.
Output kenel switching device shifter of the present utility model can be lasting rotation at output shaft 44, and carry out conversion between the two states of intermittently rotation hammering simultaneously.After Fig. 4 A shows that the user moves locating snap ring 21 by operation pull bar 25 towards the direction of gag 22, the fitting portion 221 of gag 22 separates with the groove 211 of locating snap ring 21, at this moment, planetary gear 12 is activated and jackshaft 11 is rotated, jackshaft 11 drives 41 rotations of hammering seat via steel ball 112 again, and the active hammering piece 413 of hammering seat 41 end faces promptly clashes into the passive hammering piece 441 of output shaft 44 and drives output shaft 44 rotations; In this state, owing to exist a distance between hammering seat 41 lower ends and the gag 22, therefore, after output shaft 44 is subjected to resistance, passive hammering piece 441 can force in active hammering piece 413 and hammering seat 41 is moved towards the direction of gag 22, and then spring 3 is depressed (shown in Fig. 4 B), and the elastic force of spring 3 then can rebound hammering seat 41 again, so cause moving back and forth of hammering seat 41, reach the effect of output shaft 44 being done intermittently rotation and hammering.
As shown in Figure 5, when the user needs output shaft 44 to do lasting rotation, then as long as operation pull bar 25 moves locating snap ring 21 toward the direction of gag 22 after, just can make the groove 211 of the fitting portion 221 insertion locating snap rings 21 on the gag 22, under this kind state, along with fitting portion 221 fixed stop rings 21 are passed through in gag 22 meetings of jackshaft 11 rotations, make locating snap ring 21, hammering piece 41 be driven rotation by jackshaft synchronously with output shaft 44.
The above person only is in order to explain preferred embodiment of the present utility model; be not that attempt is done any pro forma restriction to the utility model according to this; so; all have in that identical creation spirit is following do relevant any modification of the present utility model or change, all must be included in the scope of the utility model intention protection.
Claims (5)
1, a kind of output kenel switching device shifter is characterized in that including:
The power input block includes jackshaft, and the external diameter surface of this jackshaft is provided with the external spiral groove, and has inserted steel ball at this external spiral groove;
Clutch unit comprises the locating snap ring that gag with fitting portion and inner diameter wall mask have axially extended groove, and this gag is connected in described jackshaft, and described fitting portion can be slidingly matched with this groove;
Power take-off unit, comprise output shaft with passive hammering piece and hammering seat with active hammering piece, the internal diameter of this hammering seat is provided with the inside spin groove, described jackshaft is arranged in the internal diameter of this hammering seat, and make this steel ball be matched with this inside spin groove, the external diameter of this hammering seat is provided with axially extended raised line, and this raised line is snug fit at the groove of described locating snap ring, and described output shaft and this jackshaft axially make up each other and be slidingly matched;
Spring be located between this gag and this hammering seat, and the two ends of this spring applies elastic force to this gag and hammering seat.
2, output kenel switching device shifter according to claim 1, it is characterized in that: described jackshaft is provided with seat board, this seat board is provided with locating hole, described gag is provided with locating piece that should locating hole, is embedded in this locating hole by this locating piece and finishes being connected of described gag and jackshaft.
3, output kenel switching device shifter according to claim 1 is characterized in that: described fitting portion is a pair of L shaped bar that extends out from the relative both sides of this gag external diameter.
4, output kenel switching device shifter according to claim 1, it is characterized in that: the external diameter of described locating snap ring is provided with pull bar.
5, output kenel switching device shifter according to claim 1 is characterized in that: also be provided with first pad and second pad on the described gag in regular turn, described spring is resisted against this second pad towards an end of this gag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203061040U CN201128146Y (en) | 2007-12-21 | 2007-12-21 | Output state switching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203061040U CN201128146Y (en) | 2007-12-21 | 2007-12-21 | Output state switching mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201128146Y true CN201128146Y (en) | 2008-10-08 |
Family
ID=40015972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203061040U Expired - Fee Related CN201128146Y (en) | 2007-12-21 | 2007-12-21 | Output state switching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201128146Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654009A (en) * | 2011-03-04 | 2012-09-05 | 张家港市九鼎机械有限公司 | Anti-clamping device for electronic door |
| CN102825581A (en) * | 2012-08-09 | 2012-12-19 | 浙江信源电器制造有限公司 | Multifunctional electric wrench |
| CN102825583A (en) * | 2011-06-17 | 2012-12-19 | 株式会社牧田 | Impact tool |
| CN103878726A (en) * | 2014-03-27 | 2014-06-25 | 国家电网公司 | Electric screwdriver |
| CN104139378A (en) * | 2013-05-10 | 2014-11-12 | 苏州宝时得电动工具有限公司 | Clamping device and power tool |
| CN104249334A (en) * | 2013-06-27 | 2014-12-31 | 罗伯特·博世有限公司 | Hand-held power tool device |
| CN105692482A (en) * | 2014-11-25 | 2016-06-22 | 力山工业股份有限公司 | Overload protection device for winch and winch with overload protection device |
| CN105987101A (en) * | 2015-04-15 | 2016-10-05 | 中日龙(襄阳)机电技术开发有限公司 | Rotation automatic separation clutch |
| CN106660197A (en) * | 2014-06-30 | 2017-05-10 | 株式会社牧田 | Nut tightening machine |
| CN110445301A (en) * | 2018-05-04 | 2019-11-12 | 何炳梓 | The driving header structure of electric gardening toolroom machine |
-
2007
- 2007-12-21 CN CNU2007203061040U patent/CN201128146Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654009A (en) * | 2011-03-04 | 2012-09-05 | 张家港市九鼎机械有限公司 | Anti-clamping device for electronic door |
| CN102825583A (en) * | 2011-06-17 | 2012-12-19 | 株式会社牧田 | Impact tool |
| CN102825583B (en) * | 2011-06-17 | 2015-06-03 | 株式会社牧田 | Impact tool |
| CN102825581A (en) * | 2012-08-09 | 2012-12-19 | 浙江信源电器制造有限公司 | Multifunctional electric wrench |
| CN104139378B (en) * | 2013-05-10 | 2017-05-03 | 苏州宝时得电动工具有限公司 | Clamping device and power tool |
| CN104139378A (en) * | 2013-05-10 | 2014-11-12 | 苏州宝时得电动工具有限公司 | Clamping device and power tool |
| CN104249334A (en) * | 2013-06-27 | 2014-12-31 | 罗伯特·博世有限公司 | Hand-held power tool device |
| CN104249334B (en) * | 2013-06-27 | 2018-02-27 | 罗伯特·博世有限公司 | Hand machine tool striking mechanism |
| CN103878726A (en) * | 2014-03-27 | 2014-06-25 | 国家电网公司 | Electric screwdriver |
| CN103878726B (en) * | 2014-03-27 | 2016-05-04 | 国家电网公司 | A kind of electric screwdriver head |
| CN106660197A (en) * | 2014-06-30 | 2017-05-10 | 株式会社牧田 | Nut tightening machine |
| CN105692482A (en) * | 2014-11-25 | 2016-06-22 | 力山工业股份有限公司 | Overload protection device for winch and winch with overload protection device |
| CN105987101A (en) * | 2015-04-15 | 2016-10-05 | 中日龙(襄阳)机电技术开发有限公司 | Rotation automatic separation clutch |
| CN110445301A (en) * | 2018-05-04 | 2019-11-12 | 何炳梓 | The driving header structure of electric gardening toolroom machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20101221 |