CN201423594Y - Output type switching device - Google Patents
Output type switching device Download PDFInfo
- Publication number
- CN201423594Y CN201423594Y CN2009201604592U CN200920160459U CN201423594Y CN 201423594 Y CN201423594 Y CN 201423594Y CN 2009201604592 U CN2009201604592 U CN 2009201604592U CN 200920160459 U CN200920160459 U CN 200920160459U CN 201423594 Y CN201423594 Y CN 201423594Y
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- China
- Prior art keywords
- hammering
- hitting
- output
- main shaft
- seat
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- Expired - Lifetime
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- Drilling And Boring (AREA)
Abstract
An output type switching device comprises a power unit, a hitting unit, an output shaft, an outer shell and a knob, wherein the hitting unit further comprises a gasket cup, a switching ring, a spring,a hitting seat and a main shaft, the switching ring is limited and is fixed on the gasket cup in a propping mode under the state that the power unit does not act, when the main shaft rotates under the driving of the power unit, the hitting seat is driven to rotate and is limited to axial move, thereby a hitting block of the hitting seat continuously drives a projection of the output shaft to rotate, and forms an electric drilling type power output type. When the knob is rotated, the axial limitation to the hitting block can be released, at the moment, the hitting block can axially withdraw after hitting the projection of the output shaft no mater being driven to positively rotate or reversely rotate, then the hitting seat is pushed to the original position through utilizing the spring, thereby the hitting mode power output type can be generated through the endless circulation action.
Description
Technical field
The utility model relates to a kind of electric tool that is applied to, and can continue the rotation outputting power, and produces the intermittent structure of switching between the outputting power of impacting rotation the time.
Background technology
Be used in the prior art to bore, the electric tool of work such as lock, its structure is that the power with motor is delivered to output shaft via gear train, uses to reach to slow down or the speed changing function of speedup; 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, use and lock screw tighter, or make screw lax so that unload in the moment of unloading screw in the moment of lock screw.
Electric tool with impact function of the prior art, its mechanism includes the power unit that is made of motor, first planetary gearsets, second planetary gearsets, clutch etc., and includes power transmission shaft, jackshaft, hammering seat and output shaft.When the clutch discs in the described clutch is moved axially to primary importance, be able to power transmission shaft is linked to second planetary gearsets, and power transmission shaft engages with output shaft, this moment, motor continued output with power via first planetary gearsets, second planetary gearsets, power transmission shaft and output shaft, used as electric drill to carry out low speed rotation.When described clutch discs is moved 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 intermittent impact simultaneously, can use as the impact type screwdriver.
Yet the aforementioned switching device shifter that is used for switching rotation or impact output kenel, its structure is complicated, and manufacturing cost is higher.
The utility model content
Main purpose of the present utility model is to solve the lasting rotation outputting power of the electric tool of prior art, or the intermittent simultaneously switching device shifter that impacts the output kenel of ground outputting power of rotation, and its complex structure is so that the manufacturing cost problem of higher.
In order to address the above problem, the utility model discloses a kind of output kenel switching device shifter, include:
One power unit;
One hammering unit further includes:
One packing ring cup, its periphery is provided with a plurality of breach;
All ring changes, its first end and second end are respectively equipped with a plurality of first protuberances, and with a plurality of second protuberances that enter the breach of this packing ring cup, and the external diameter surface that encircles in this switching is provided with a circular groove groove;
One spring, its two ends are butted on this packing ring cup and this switching ring;
One hammering seat, have the card of an external diameter greater than this hammering seat, with a plurality of hammering pieces of being located at this card, the external diameter of described card is provided with a plurality of grooves that extend axially and can supply aforementioned first protuberance to enter, the central authorities of this hammering seat have an axis hole, and the internal diameter of this axis hole is provided with interior vee-cut;
One main shaft, be arranged in this packing ring cup, spring, switching ring and hammering seat, and this main shaft cooperates and can move to axial behind this packing ring cup but can not rotate relatively, the external diameter of described main shaft is provided with outer vee-cut, be somebody's turn to do between outer vee-cut and the described interior vee-cut and insert a plurality of steel balls, connect described main shaft and hammering seat by steel ball, this main shaft connects described power unit;
One output shaft axially is matched with described hammering unit, and an end of this output shaft is provided with a plurality of projections that can cooperate bump with aforementioned hammering piece;
One shell provides aforementioned hammering unit and output shaft to place its inner space, and the wall of this shell is provided with skewed slot;
One knob provides aforementioned shell to insert its inner space, and the wall of this knob is provided with a plurality of slotted eyes; A plurality of slide blocks have the outstanding with one heart flange and the tip, and this slide block is combined in the slotted eye of described knob, and makes this flange be matched with the skewed slot of described shell, and this tip then inserts the circular groove groove of aforementioned switching ring.
One end of described main shaft is that section is polygonal polygon shaft, and described packing ring cup central authorities have the polygonal hole to should polygon shaft and can being passed.
Described power unit includes an output panel, and the central authorities of this output panel are for can be for inserting the polygonal hole that cooperates to polygon shaft that should main shaft.
Described first protuberance and second protuberance that switches ring of being located at is to be the outstanding inwall that switches ring from the past center position punch forming of the sidewall of this switching ring.
By aforesaid mechanism, under the state that power unit does not move, this switching ring is subjected to the restriction of slide block and makes second protuberance be butted on the breach of packing ring cup; When main shaft is subjected to power unit driving rotation, power is passed to output shaft via the hammering seat, output shaft is subjected to load in working order down, and pass its reaction force back the hammering seat and make the counter-rotating of hammering seat, under this state, utilize aforementioned outer vee-cut to cooperate the structure of steel ball interlock with interior vee-cut, can move axially toward the direction of packing ring cup when making the counter-rotating of hammering seat, and because after the counter-rotating of hammering seat, the groove of its outer rim misplaces mutually with first protuberance that switches ring, thereby stop the hammering seat to continue to move axially, the projection that causes the hammering piece of hammering seat front end can't break away from the output shaft rear end, thereby make kinetic force transmit constantly, with power output kenel as the electric drill pattern.
In the time will exporting kenel as the power of intermittent rotary impact pattern, then need to rotate knob, make slide block be subjected to shell skewed slot restriction and move toward first extreme direction, and then drive switching ring also moves toward first extreme direction, make second protuberance that switches ring second end break away from the breach of packing ring cup, first protuberance of first end then slips in the groove of hammering seat, at this moment, hammering seat forward or reverse no matter, switch ring all synchronously with its rotation, but the switching ring can be subjected to the restriction of slide block and can not move forward and backward with it, so when the hammering seat is subjected to reaction force and reverses and be not subjected to any restriction when moving toward second extreme direction, make the hammering piece of hammering seat front end can break away from the projection of output shaft rear end smoothly, and the elastic force of spring moves in the hammering seat with involution again, so circulation endlessly produces intermittent rotation and percussion action.
Description of drawings
Fig. 1 is for showing the three-dimensional exploded view of the primary clustering syntagmatic of switching device shifter among the utility model embodiment.
Fig. 2 is the three-dimensional exploded view that shows the primary clustering syntagmatic of the hammering unit that is comprised among the utility model embodiment.
Fig. 3 is for showing among the utility model embodiment switching device shifter when not having the power drive state, the three-dimensional cutaway view of the configuration state of hammering unit.
Fig. 3 A is for showing switching device shifter of the present utility model when not having the power drive state, the outward appearance plane of the configuration state of hammering unit.
Fig. 4 is for showing among the utility model embodiment switching device shifter when the electric drill pattern output kenel, the three-dimensional cutaway view of the configuration state of hammering unit.
Fig. 5 is for showing among the utility model embodiment switching device shifter when the conflicting model output kenel, the three-dimensional cutaway view of the configuration state of hammering unit.
Fig. 5 A is for showing among the utility model embodiment switching device shifter when the conflicting model output kenel, the outward appearance plane of the configuration state of hammering unit.
The specific embodiment
Below cooperation is graphic does more detailed description to embodiment of the present utility model, and those of ordinary skill in the art can be implemented after studying this specification carefully according to this.
At first with reference to figure 1, the output kenel switching device shifter that the utility model provides is a kind of electric tool that is applied to, and uses to switch to the electric drill pattern power output kenel that continues rotation, or switches to the power output kenel of intermittently rotating with conflicting model; It includes a power unit 7, a hammering unit 1, an output shaft 2, a shell 3, a knob 4, at least one slide block 5 and an outer cover 6.Described power unit 7 comprises a motor 71 that is provided with driving gear 711, motor 71 front ends are installed a holder 79 and a pedestal 73 in regular turn, one fluted disc 72 then is installed in this pedestal 73 in regular turn, one ring plate 78, a plurality of little springs 77, one ring body 76, a plurality of planetary gears 74, one bearing 731 and an output panel 75, make each planetary gear 74 be engaged in the inner circular tooth 721 and driving gear 711 of fluted disc 72 simultaneously, pass the set a plurality of short slots 781 of ring plate 78 peripheries again after being located at the then sheathed respectively little spring 77 of a plurality of dowels 761 of ring body 76 1 sides, allow little spring 77 be butted on fluted disc 72 1 sides.75 fitted bearings 731 of output panel are installed in the pedestal 73 and can rotate freely; 751 at a plurality of protruding tip being located at output panel 75 1 sides passes the centre bore of these planetary gears 74 respectively to link together; 752 set of polygonal hole of output panel 75 centers are used for making up aforesaid hammering unit 1.
Again with reference to figure 2, hammering of the present utility model unit 1, its preferred embodiment further includes a main shaft 11, a hammering seat 12, a spring 13, a packing ring 14, a thrust bearing 15, a packing ring cup 16, a clasp 17, a plurality of steel ball 18 and all ring changes 19; Wherein, the external diameter surface that first end of described main shaft 11 extends axially a segment distance forms outer vee-cut 111, second end of main shaft 11 extends axially a segment distance and then forms section and be polygonal polygon shaft 112, and cuts out clasp ditch 113 at the external diameter of this polygon shaft 112.The preferred embodiment of described hammering seat 12, then be to have the card 124 of an external diameter greater than this hammering seat, this card 124 is provided with a plurality of outstanding hammering pieces 122, and be provided with a plurality of axially extended grooves 123 at the external diameter of card 124, the central authorities of this hammering seat 12 have an axis hole, and the internal diameter of this axis hole is provided with interior vee-cut 121; After described outer vee-cut 111 is placed a plurality of steel balls 18, again main shaft 11 is penetrated the axis hole of hammering seat 12, make steel ball 18 outside between vee-cut 111 and the interior vee-cut 121, by steel ball 18 as the assembly that affects between main shaft 11 and the hammering seat 12.Described packing ring cup 16 is a kind of cylindrical body, and its periphery is provided with a plurality of breach 161, and the central authorities of packing ring cup 16 are provided with the polygonal hole 162 of polygon shaft 112 end faces of a corresponding main shaft 11.Described switching ring 19 also is a cylindrical body, and first end that it is relative and the second end periphery are respectively equipped with a plurality of first protuberances 191 and a plurality of second protuberance 191A; Preferred embodiment is, first protuberance and second protuberance are to adopt the punch forming technology to be the outstanding inwall that switches ring 19 from the sidewall of this switching ring 19 toward the center position punch forming, and first protuberance 191 after the moulding, groove 123, the second protuberance 191A that can axially slip into hammering seat 12 then can slip into the breach 161 of packing ring cup 16; In addition, be provided with circular groove groove 192 at the external diameter wall that switches ring 19.
The compound mode of described hammering unit 1, be after in regular turn thrust bearing 15, packing ring 14 and spring 13 being placed in the packing ring cup 16, again packing ring cup 16 is combined in second end that switches ring 19, the polygonal hole 162 that the main shaft 11 that will be combined in hammering seat 12 then passes packing ring cup 16 from first end that switches ring 19, be buckled in the clasp ditch 113 of polygon shaft 112 again with clasp 17, to stop main shaft 11 and packing ring cup 16 to break away from, and the two ends that make spring 13 are supported respectively to pull and are acted on packing ring cup 16 and hammering seat 12, thereby group constitutes a hammering unit 1.
The combination of described hammering unit 1 and power unit 7 is the polygonal hole 752 that directly polygon shaft 112 of main shaft 11 second ends penetrated output panel 75, makes polygon shaft 112 to move to axial with polygonal hole 752, but can not rotate relatively.
Fig. 3 and Fig. 3 A are the mechanisms that shows that the utility model is formed, and under the state that power unit 7 does not move, switch ring 19 and are subjected to the restriction of slide block 5 and make the second protuberance 191A be butted on the breach 161 of packing ring cup 16; When motor 71 actions, driving gear 71 drives planetary gear 74 runnings, drive output panel 75 rotations simultaneously, 11 rotations of 75 drive main shafts of output panel, 11 on main shaft drives hammering seat 12 by steel ball 18 and rotates, affect projection 21 by hammering piece 122 again and make output shaft 2 rotations, output shaft 2 is subjected to load in working order down, can pass its reaction force back hammering seat 12 and make 12 counter-rotatings of hammering seat, under this state, utilize aforementioned outer vee-cut 111 to cooperate the structure of steel ball 18 interlocks with interior vee-cut 121, can move axially toward the direction of packing ring cup 16 when making 12 counter-rotatings of hammering seat, and because after 12 counter-rotatings of hammering seat, the groove 123 of its outer rim misplace (as shown in Figure 4) mutually with first protuberance 191 that switches ring 19, thereby prevention hammering seat 12 continues to move axially, the projection 21 that causes the hammering piece 122 of hammering seat 12 front ends can't break away from output shaft 2 rear ends, thereby make kinetic force transmit constantly, with power output kenel as the electric drill pattern.
In the time will exporting kenel as the power of intermittent rotary impact pattern, the user need rotate knob 4, make slide block 5 be subjected to shell 3 skewed slot 31 restriction and move toward first extreme direction, and then drive switching ring 19 also moves toward first extreme directions, first protuberance 191 that makes the second protuberance 191A that switches ring 19 second ends break away from breach 161, the first ends of packing ring cup 16 then slips into the groove 123 interior (shown in Fig. 5 and Fig. 5 A) of hammering seat 12; At this moment, hammering seat 12 forward or reverse no matter, switch ring 19 all synchronously with its rotation, but switching ring 19 can be subjected to the restriction of slide block 15 and can not move forward and backward with it, so when hammering seat 12 is subjected to reaction force and reverses and be not subjected to any restriction when moving toward second extreme direction, make the hammering piece 122 of hammering seat 12 front ends can break away from the projection 21 of output shaft 2 rear ends smoothly, and the elastic force of spring 13 remakes and is used for hammering seat 12 with involution, so circulation endlessly produces intermittent rotation and percussion action.
The above 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; therefore; all have in that identical utility model spirit is following do relevant any modification of the present utility model or change, all must be included in the category of the utility model intention protection.
Claims (4)
1. an output kenel switching device shifter is characterized in that, includes:
One power unit;
One hammering unit further includes:
One packing ring cup, its periphery is provided with a plurality of breach;
All ring changes, its first end and second end are respectively equipped with a plurality of first protuberances, and with a plurality of second protuberances that enter the breach of this packing ring cup, and the external diameter surface that encircles in this switching is provided with a circular groove groove;
One spring, its two ends are butted on this packing ring cup and this switching ring;
One hammering seat, have the card of an external diameter greater than this hammering seat, with a plurality of hammering pieces of being located at this card, the external diameter of described card is provided with a plurality of grooves that extend axially and can supply aforementioned first protuberance to enter, the central authorities of this hammering seat have an axis hole, and the internal diameter of this axis hole is provided with interior vee-cut;
One main shaft, be arranged in this packing ring cup, spring, switching ring and hammering seat, and this main shaft cooperates and can move to axial behind this packing ring cup but can not rotate relatively, the external diameter of described main shaft is provided with outer vee-cut, be somebody's turn to do between outer vee-cut and the described interior vee-cut and insert a plurality of steel balls, connect described main shaft and hammering seat by steel ball, this main shaft connects described power unit;
One output shaft axially is matched with described hammering unit, and an end of this output shaft is provided with a plurality of projections that can cooperate bump with aforementioned hammering piece;
One shell provides aforementioned hammering unit and output shaft to place its inner space, and the wall of this shell is provided with skewed slot;
One knob provides aforementioned shell to insert its inner space, and the wall of this knob is provided with a plurality of slotted eyes; A plurality of slide blocks have the outstanding with one heart flange and the tip, and this slide block is combined in the slotted eye of described knob, and makes this flange be matched with the skewed slot of described shell, and this tip then inserts the circular groove groove of aforementioned switching ring.
2. output kenel switching device shifter as claimed in claim 1 is characterized in that, an end of described main shaft is that section is polygonal polygon shaft, and described packing ring cup central authorities have the polygonal hole to should polygon shaft and can being passed.
3. output kenel switching device shifter as claimed in claim 1 is characterized in that described power unit includes an output panel, and the central authorities of this output panel are for can be for inserting the polygonal hole that cooperates to polygon shaft that should main shaft.
4. output kenel switching device shifter as claimed in claim 1 is characterized in that, described first protuberance and second protuberance that switches ring of being located at is to be the outstanding inwall that switches ring from the past center position punch forming of the sidewall of this switching ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201604592U CN201423594Y (en) | 2009-06-25 | 2009-06-25 | Output type switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201604592U CN201423594Y (en) | 2009-06-25 | 2009-06-25 | Output type switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201423594Y true CN201423594Y (en) | 2010-03-17 |
Family
ID=42023030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201604592U Expired - Lifetime CN201423594Y (en) | 2009-06-25 | 2009-06-25 | Output type switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201423594Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105437129A (en) * | 2014-06-30 | 2016-03-30 | 南京德朔实业有限公司 | Torsion force output tool |
-
2009
- 2009-06-25 CN CN2009201604592U patent/CN201423594Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105437129A (en) * | 2014-06-30 | 2016-03-30 | 南京德朔实业有限公司 | Torsion force output tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TRINITY PRECISION METALLIZE CO. Free format text: FORMER OWNER: TOPGEARBOX INDUSTRY CO., LTD. Effective date: 20110926 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110926 Address after: Miaoli County, Taiwan, China Patentee after: Trinity Precision Technology Co.,Ltd. Address before: China Taiwan Taoyuan County Patentee before: Top Gearbox Industry Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100317 |
|
| CX01 | Expiry of patent term |