CN205438464U - Power tool - Google Patents
Power tool Download PDFInfo
- Publication number
- CN205438464U CN205438464U CN201521117503.3U CN201521117503U CN205438464U CN 205438464 U CN205438464 U CN 205438464U CN 201521117503 U CN201521117503 U CN 201521117503U CN 205438464 U CN205438464 U CN 205438464U
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- Prior art keywords
- output shaft
- end cover
- gear
- power tool
- box
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The utility model discloses a power tool, include: output shaft, output shaft bearing, supporting component, gear box and gasket, the output shaft can rotate around the first axle, and the output shaft bearing supports the output shaft at an axial position, and the supporting component supports the output shaft at the 2nd axial position, and the gear box holds has drive mechanism, and the gasket setting is between supporting component and gear box, the output shaft bearing sets up between output shaft and gear box, and the supporting component setting is in the outside of gear box, and the output shaft passes through the rotation of supporting component constitution with the gear box and is connected, the supporting component still includes: upper end cover, bottom end cover and rolling member, bottom end cover and output shaft contact, the rolling member sets up between upper end cover and bottom end cover, the upper end cover passes through the rolling member and constitutes relative the rotation with the bottom end cover, and the gasket still sets up between the outer wall of upper end cover and gear box. Upper end cover and bottom end cover can be maintain respectively and the clearance between the rolling member basically to gasket in this power tool.
Description
Technical field
This utility model relates to a kind of power tool, is specifically related to a kind of instrument for torsion output.
Background technology
Such as the power tool of the torsion such as electric drill and screwdriver output generally includes: prime mover, drive mechanism and output shaft, its prime mover also includes that drive shaft, drive shaft drive transmission device output power to output shaft.
When these instruments are the power tool use of hand-held, user typically requires one hand or hands grasping instrument operates.And when power tool oversize of hand-held, it is evident that this is detrimental to what user carried out operating.So it is desirable that power tool is in the case of the requirement of moment of torsion, rotating speed and the power etc. of satisfied output, the size of instrument is the smaller the better.
But, for existing power tool, in order to improve stability when drive shaft and output shaft rotation, all can be provided with bearing, bearings drive shaft and output shaft in drive shaft and output shaft, reduce coefficient of friction when they rotate, it is ensured that rotating accuracy.But, the setting of bearing increases the axial dimension of power tool beyond doubt, is unfavorable for the miniaturization of power tool.
Summary of the invention
A kind of power tool, including: output shaft, output shaft bearing, a support component, gear-box and pad；Output shaft can rotate around first axle, and output shaft bearing supports output shaft at the first axial location, and a support component supports output shaft at the second axial location, and gear-box accommodates the drive mechanism driving output shaft, and pad is arranged on and props up between support component and gear-box；Output shaft bearing is arranged between output shaft and gear-box, and a support component is arranged on the outside of gear-box, and output shaft constitutes being rotationally connected with first axle as axle with gear-box by a support component；Wherein, prop up support component also to include: upper end cover, bottom end cover and rolling member；Bottom end cover contacts with output shaft, and rolling member is arranged between upper end cover and bottom end cover；Upper end cover is relatively rotated with bottom end cover composition by rolling member, and pad is additionally arranged between upper end cover and the outer wall of gear-box.
Further, output shaft bearing along the projection on output shaft of the radial direction of the first axle of output shaft with to prop up the projection on output shaft of the support component radial direction along the first axle of output shaft least partially overlapped.
Further, upper end cover be also formed with making gear-box at least partially by the first through hole, output shaft bearing is at least partially arranged in the first through hole；Bottom end cover be formed can make output shaft at least partially by the second through hole.
Further, power tool also includes the clamping device that attachment can be clamped in power tool；Clamping device is formed with the first clamping face, and output shaft is formed with the second clamping face, and bottom end cover is at least partly held between the first clamping face and the second clamping face.
Further, prop up support component also to include: the bracing frame of back-up roller moving part；Bottom end cover is formed with the host cavity for housing bracing frame, and upper end cover is also at least partially disposed in host cavity.
Further, pad is non-resilient packing ring.
Further, upper end cover is formed with upper surface, and gear-box is formed with outside wall surface that can be parallel with the upper surface of upper end cover, and pad is at least partly held between the upper surface of upper end cover and the outside wall surface of gear-box.
Another kind of power tool, including: prime mover, driving shaft bearing, sun gear, planetary gear and planetary wheel carrier；Prime mover includes the drive shaft that can rotate for axle with first axle, and driving shaft bearing supports drive shaft, and the direct driven shaft of sun gear drives, and planetary gear is arranged to coordinate with sun gear, and planetary wheel carrier installs planetary gear；Wherein, planetary wheel carrier is also formed with the supporting part for supporting driving shaft bearing；Supporting part is formed with supported hole, and driving shaft bearing is at least partially housed in supported hole；On first axle direction, driving shaft bearing is also provided between sun gear and prime mover.
Further, power tool also includes the locking mechanism that planetary wheel carrier circumferential position can be made fixing；Locking mechanism includes: torsion cup, elastic component and the support pin that can rotate with first axle for axle；Torsion cup is formed with the supporting part supporting elastic component, and torsion cup drives resilient member biases to support pin and moves to the direction supporting planetary wheel carrier.
Further, power tool also includes: output shaft, output shaft bearing, a support component, gear-box and pad；Output shaft can rotate around first axle, and output shaft bearing supports output shaft at the first axial location, and a support component supports output shaft at the second axial location, and gear-box at least accommodates sun gear, planetary gear and planetary wheel carrier, and pad is arranged on and props up between support component and gear-box；Output shaft bearing is arranged between output shaft and gear-box, and a support component is arranged on the outside of gear-box, and output shaft constitutes being rotationally connected with first axle as axle with gear-box by a support component；Wherein, prop up support component also to include: upper end cover, bottom end cover and rolling member；Upper end cover contacts with gear-box, and bottom end cover contacts with output shaft, and rolling member is arranged between upper end cover and bottom end cover；Upper end cover is relatively rotated with bottom end cover composition by rolling member, and pad is additionally arranged between upper end cover and the outer wall of gear-box.
By output shaft bearing and a support component, output shaft is supported respectively so that output shaft has duplex bearing and supports, it is possible to reduce the coefficient of friction of output shaft, it is ensured that the rotating accuracy of output shaft and the depth of parallelism；And a pad is set between support component and the outside wall surface of gear-box propping up, this pad can arrange its thickness according to actual assembling situation such that it is able to keeps the gap in a support component substantially stationary.
Accompanying drawing explanation
Fig. 1 shows the contour structures of the power tool of an embodiment；
Fig. 2 is the partial cutaway schematic view of the power tool in Fig. 1；
Fig. 3 is the enlarged diagram of a part for structure shown in Fig. 2；
Fig. 4 is the explosive view of structure shown in Fig. 3；
Fig. 5 is the enlarged diagram of another part of structure shown in Fig. 2；
Fig. 6 is the explosive view of structure shown in Fig. 5；
Fig. 7 shows the explosive view of the part-structure in the power tool of another embodiment.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model made concrete introduction.
Power tool 100 shown in Fig. 1 includes: housing 11, switch 12 and clamping device 13.
As in figure 2 it is shown, power tool 100 also includes: prime mover 14, gear-box 15, drive mechanism 16, output shaft 17, output shaft bearing 18, support component 19 and driving shaft bearing 21.
For convenience of explanation, power tool 100 is with an electric drill as an example；Certainly power tool 100 can also be that other torsion exports instrument, such as screwdriver or have the multi-purpose tool of screwdriver and electric drill function concurrently；Or, power tool 100 can also be the instrument that the torque axis of output can turn to the motion of other forms, and these instruments may be for polishing workpiece, such as sander, angle mill；These instruments are likely to for cutting workpiece, such as reciprocating sow, annular saw, sweep-saw；These instruments are likely to for doing impact use, such as electric hammer；These instruments are also likely to be gardens class instrument, such as pruner and chain saw；Additionally these instruments are likely to as other purposes, such as blender.
As long as these instruments have the drive shaft 141 driven by prime mover 14 and the gear-box 15 being applied to speed governing mutually and drive mechanism 16, it is possible to use the flesh and blood of technical scheme disclosed below.
As it is shown in figure 1, housing 11 is for accommodating each parts in power tool 100, housing 11 can include handle portion 111 and receiving portion 112.Handle portion 111 is for gripping for user, and receiving portion 112 forms the receiving space accommodating each parts；Switch 12 can be installed on handle portion 111.
User is when gripping handle portion 111, it is possible to trigger switch 12 the most easily, and this switch 12 can be configured so that the master switch starting this power tool 100.Clamping device 13 is for being clamped in an attachment in this power tool 100, it is possible to outputs power to attachment by this clamping device 13, thus realizes the instrumental function of this power tool 100.
Prime mover 14 for being converted into power output by the energy that energy source provides.Prime mover 14 includes the drive shaft 141 that can rotate for axle with first axle A, and one end of drive shaft 141 is used for exporting power to drive mechanism 16.Gear-box 15 defines the shell of drive mechanism 16, and drive mechanism 16 is contained in gear-box 15, and drive mechanism 16 is for being transferred to output shaft 17 by the power that prime mover 14 exports.Output shaft 17 can rotate with first axle A for axle, can output power to clamping device 13 or attachment upon its rotation.
Output shaft bearing 18 is for supporting output shaft 17 at the first axial location, support component 19 for supporting output shaft 17 at the second axial location, output shaft bearing 18 along the projection on output shaft 17 of the radial direction of first axle A with to prop up the projection on output shaft 17 of the support component 19 radial direction along first axle A least partially overlapped.So, for output shaft 17, under the common support of output shaft bearing 18 and a support component 19 so that output shaft 17 has duplex bearing and supports, it is possible to reduce the coefficient of friction of output shaft 17, it is ensured that the rotating accuracy of output shaft 17 and the depth of parallelism；And the projection section overlap of output shaft bearing 18 and a support component 19 can also reduce the power tool 100 size on the first axle A direction of output shaft 17, thus it is advantageously implemented the miniaturization of power tool 100.
The content of technical scheme being the most clearly described, makes defined below: definition first axle A direction is axial, centered by first axle A, the circumferencial direction of axle is as circumference in definition, and definition diametric(al) of the circumference of axle centered by first axle A is radial direction.So, foregoing output shaft bearing 18 refers to an output shaft bearing 18 position support output shaft 17 in the axial direction for supporting output shaft 17 at the first axial location, and a support component 19 refers to a support component 19 another position support output shaft 17 in the axial direction for supporting output shaft 17 at the second axial location.
The most as shown in Figures 2 to 4, gear-box 15 is formed with a receiving chamber, and drive mechanism 16 is positioned at receiving intracavity.
Output shaft bearing 18 is arranged in the receiving chamber in gear-box 15, and diametrically, output shaft bearing 18 is also located between gear-box 15 and output shaft 17.This output shaft bearing 18 can be rolling bearing, and rolling bearing includes inner ring, outer ring and ball or roller.Inner ring contacts with output shaft 17, outer ring contacts with gear-box 15 inside side walls, inner ring can also constitute fixing connection with output shaft 17, outer ring can also constitute fixing connection with gear-box 15, ball or roller make outer ring can rotate relative to inner ring such that it is able to realize output shaft bearing 18 and to the supporting role of output shaft 17 and reduce coefficient of friction when output shaft 17 rotates.
Propping up support component 19 and be arranged at the outside of gear-box 15, a support component 19 is also used for supporting output shaft 17, and makes output shaft 17 constitute being rotationally connected with first axle A as axle with gear-box 15 by this support component 19 and foregoing output shaft bearing 18.
Prop up support component 19 to include: upper end cover 191, bottom end cover 192, rolling member 193 and bracing frame 194.Upper end cover 191, bottom end cover 192, rolling member 193 and bracing frame 194 constitute an end face bearing that can support output shaft 17, thus, the setting of this support component 19 also is able to support output shaft 17, reduce coefficient of friction when output shaft 17 rotates, additionally it is possible to be further ensured that rotating accuracy and the depth of parallelism of output shaft 17.
Bottom end cover 192 contacts with output shaft 17, and rolling member 193 and bracing frame 194 are arranged between upper end cover 191 and bottom end cover 192, and bracing frame 194 is for back-up roller moving part 193.
Concrete, upper end cover 191 contacts with the outside side wall of gear-box 15, and it is relatively rotated with bottom end cover 192 composition by rolling member 193, uses so that a support component 19 can be used as a bearing.Upper end cover 191 also forms a first through hole 191a, and gear-box 15 is through this first through hole 191a, and output shaft 17 is also through this first through hole 191a, and output shaft bearing 18 is arranged in this first through hole 191a.At first axle A radially, gear-box 15 is between upper end cover 191 and output shaft bearing 18, and output shaft bearing 18 is between gear-box 15 and output shaft 17.
Bottom end cover 192 contacts with output shaft 17, its structure the most in disk form.Bottom end cover 192 includes: straight base plate 192a and the ring part 192b extended from base plate 192a side.When a support component 19 is installed to output shaft 17, base plate 192a is perpendicular to the first axle A of output shaft 17.Ring part 192b and base plate 192a are jointly around forming a receiving chamber being used for accommodating upper end cover 191, rolling member 193 and bracing frame 194, and output shaft bearing 18 is also at least partially disposed at this receiving intracavity.Base plate 192a is also formed with the second through hole 192c, and output shaft 17 also extends through this second through hole 192c.Wherein, the aperture of the first through hole 191a is also greater than the aperture of the second through hole 192c.
Wherein, the aperture of the second through hole 192c is also less than the aperture of the first through hole 191a so that base plate 192a of bottom end cover 192 is at least partly clamped between clamping device 13 and output shaft 17.Concrete, clamping device 13 is formed with the first clamping face 131, and output shaft 17 is formed with an annular protrusion, and the downside of this annular protrusion is formed with the second clamping face 171 coordinated with the first clamping face 131.When clamping device 13 is installed to output shaft 17, base plate 192a of bottom end cover 192 near the second clamping face 171 and is clamped between output shaft 17 and clamping device 13 by the first clamping face 131, thus realizes the support component 19 supporting role to output shaft 17.
As shown in Figure 3 and Figure 4, power tool can also include pad and collar 23.Pad is arranged between the outer wall of upper end cover 191 and gear-box 15, and pad is construed as pad middleware between the outer wall of upper end cover 191 and gear-box 15, and its concrete form is not restricted to the conventional pad that those skilled in the art think.In the present embodiment, this pad can be such as a biased element, specially butterfly spring packing ring 22, and it is close towards bottom end cover 192 that butterfly spring packing ring 22 biases upper end cover 191 so that closely cooperates between upper end cover 191 and bottom end cover 192.This butterfly spring packing ring 22 can also use other type of spring or rubber parts to substitute.Back-up ring 23 and the annular protrusion on output shaft 17 act on jointly so that the axial location of output shaft bearing 18 and output shaft 17 is fixed.
As shown in Figure 2, Figure 5 and Figure 6, drive mechanism 16 is for being transferred to output shaft 17 by the power that drive shaft 141 exports, and this drive mechanism 16 is for can drop slow-revving reducing gear simultaneously.Driving shaft bearing 21 is used for supporting drive shaft 141 so that drive shaft 141 reduces coefficient of friction when rotating.Concrete, this drive mechanism 16 at least includes first order reduction assemblies (figure is not marked), and it can also include second level reduction assemblies (figure is not marked).First order reduction assemblies includes closer to drive shaft 141, first order reduction assemblies relative to the second reduction assemblies: sun gear 161, planetary gear 162 and planetary wheel carrier 163.
The direct driven shaft 141 of sun gear 161 drives, and such as, sun gear 161 can be with drive shaft 141 interference fit.The number of planetary gear 162 is two or more, and plural planetary gear 162 coordinates with sun gear 161, and such as, planetary gear 162 can be coordinated by mode intermeshing with sun gear 161.Planetary wheel carrier 163 is used for installing planetary gear 162, and the side of planetary wheel carrier 163 is provided with the pin 163a for installing planetary gear 162, and planetary gear 162 is provided with the centre bore (figure is not marked) that pin 163a can be made to embed.Planetary wheel carrier 163 is also formed with supporting part (figure is not marked), and this supporting part is used for supporting driving shaft bearing 21, and this supporting part can also be formed with a supported hole 163b, and driving shaft bearing 21 is arranged in this supported hole 163b.Planetary wheel carrier 163 is installing the structure of planetary gear 162 while in as the first reduction assemblies, it can also be used to support driving shaft bearing 21, so, for drive shaft 141, planetary wheel carrier 163 and driving shaft bearing 21 are arranged at the same axial location of drive shaft 141, thus without arranging driving shaft bearing 21 at another one axial location, and then reduce the axial length of power tool 100.
As in figure 2 it is shown, also include a locking mechanism 24 in power tool 100, the circumferential position of the fixing planetary wheel carrier 163 that this locking mechanism 24 can be temporary transient so that the relative housing of planetary wheel carrier 163 11 is fixed, such that it is able to change the speed reducing ratio of first order reduction assemblies.Concrete, this locking mechanism 24 includes torsion cup 241, elastic component 242 and supports pin 243.Torsion cup 241 can rotate with first axle A for axle by opposed gear case 15, and it can be user-operably and rotate, and torsion cup 241 is also formed with the supporting part (figure is not marked) for supporting elastic component 242.Elastic component 242 is spring, and spring housing is located on supporting part, supports pin 243 and supports an end face of planetary wheel carrier 163.When torsion cup 241 rotates, torsion cup 241 drives elastic component 242 biasing support pin 243, support pin 243 to be driven towards planetary wheel carrier 163 by elastic component 242 and move such that it is able to supports planetary wheel carrier 163 and makes its opposed gear case 15 fix.
As shown in Figure 6, power tool 100 also includes another one bearing 25, this bearing 25 supports drive shaft 141 jointly with driving shaft bearing 21, so, in the axial direction, driving shaft bearing 21 is arranged between the planetary wheel carrier 163 corresponding to the sun gear 161 directly coordinated with drive shaft 141 and prime mover 14, and another bearing 25 also is located at the outside of the housing of prime mover 14, for the drive shaft 141 of longer dimension, duplex bearing supports and ensure that its rotating accuracy and the depth of parallelism.
As it is shown in fig. 7, in another embodiment, pad can also be non-resilient packing ring 26 ', and the upper and lower surface of non-resilient packing ring 26 ' can contact with outside and the upper end cover 191 ' of gear-box 15 ' respectively.For non-resilient packing ring 26 ', it is understood that, the purpose arranging non-resilient packing ring 26 ' is to keep the rolling member 193 ' gap respectively and between upper end cover 191 ' and bottom end cover 192 ', and in order to keep this gap, during actual assembling, the non-resilient packing ring 26 ' of different-thickness can be set according to the assembling operating mode of each instrument in the power tool of the same model of same specification.So, the non-resilient relative butterfly spring packing ring 22 of packing ring 26 ' is used to be advantageous in that: when the power that clamping device 13 ' is subject to is bigger, or clamping device 13 ' tilted power time, the gap propped up between gap or bottom end cover 192 ' and rolling member 193 ' between upper end cover 191 ' and the rolling member 193 ' of support component 19 ' can keep certain substantially such that it is able to ensures a support component 19 ' support effect as bearing.
Concrete, upper end cover 191 ' is formed with upper surface 191b ', gear-box 15 ' is formed with outside wall surface 151 ' that can be parallel with upper surface 191b ' in outside, the most non-resilient packing ring 26 ' can be clamped between the outside wall surface 151 ' of gear-box 15 ' and the upper surface 191b ' of upper end cover 191 ', thus realizes supporting upper end cover 191 and whole support component 19.
Of the present utility model ultimate principle, principal character and advantage have more than been shown and described.Skilled person will appreciate that of the industry, above-described embodiment limits this utility model, the technical scheme that the mode of all employing equivalents or equivalent transformation is obtained the most in any form, all falls within protection domain of the present utility model.
Claims (10)
1. a power tool, including:
Output shaft, can rotate around first axle；
It is characterized in that:
Described power tool also includes:
Output shaft bearing, supports described output shaft at the first axial location；
Prop up support component, support described output shaft at the second axial location；
Gear-box, accommodates the drive mechanism driving described output shaft；
Pad, is arranged on described between support component and described gear-box；
Described output shaft bearing is arranged between described output shaft and described gear-box, and described support component is arranged on the outside of described gear-box, and described output shaft constitutes being rotationally connected with described first axle as axle with described gear-box by described support component；
Wherein, described support component also includes:
Upper end cover；
Bottom end cover, contacts with described output shaft；
Rolling member, is arranged between described upper end cover and described bottom end cover；
Described upper end cover is relatively rotated with described bottom end cover composition by described rolling member；Described pad is additionally arranged between the outer wall of described upper end cover and described gear-box.
Power tool the most according to claim 1, it is characterised in that:
Described output shaft bearing is least partially overlapped along the projection on described output shaft of the radial direction of the first axle of described output shaft along the projection on described output shaft of the radial direction of the first axle of described output shaft and described support component.
Power tool the most according to claim 1, it is characterised in that:
Described upper end cover be also formed with making described gear-box at least partially by the first through hole, described output shaft bearing is at least partially arranged in described first through hole；Described bottom end cover be formed can make described output shaft at least partially by the second through hole.
Power tool the most according to claim 1, it is characterised in that:
Described power tool also includes the clamping device that attachment can be clamped in described power tool；Described clamping device is formed with the first clamping face, and described output shaft is formed with the second clamping face, and described bottom end cover is at least partly held between described first clamping face and described second clamping face.
Power tool the most according to claim 1, it is characterised in that:
Described support component also includes:
Bracing frame, supports described rolling member；
Described bottom end cover is formed with the host cavity for housing support frame as described above, and described upper end cover is also at least partially disposed in described host cavity.
Power tool the most according to claim 1, it is characterised in that:
Described pad is non-resilient packing ring.
Power tool the most according to claim 1, it is characterised in that:
Described upper end cover is formed with upper surface, and described gear-box is formed with outside wall surface that can be parallel with the upper surface of described upper end cover, and described pad is at least partly held between the upper surface of described upper end cover and the outside wall surface of described gear-box.
8. a power tool, including:
Prime mover, including the drive shaft that can rotate with first axle for axle；
It is characterized in that:
Described power tool also includes:
Driving shaft bearing, supports described drive shaft；
Sun gear, is directly driven by described drive shaft；
Planetary gear, is arranged to coordinate with described sun gear；
Planetary wheel carrier, installs described planetary gear；
Wherein, described planetary wheel carrier is also formed with the supporting part for supporting described driving shaft bearing；Described supporting part is formed with supported hole, and described driving shaft bearing is at least partially housed in described supported hole；On described first axle direction, described driving shaft bearing is also provided between described sun gear and described prime mover.
Power tool the most according to claim 8, it is characterised in that:
Described power tool also includes the locking mechanism that described planetary wheel carrier circumferential position can be made fixing；
Described locking mechanism includes: torsion cup, elastic component and the support pin that can rotate with described first axle for axle；Described torsion cup is formed with the supporting part supporting described elastic component, and described torsion cup drives to support described in described resilient member biases to sell and moves to the direction supporting described planetary wheel carrier.
Power tool the most according to claim 8, it is characterised in that:
Described power tool also includes:
Output shaft, can rotate around described first axle；
Output shaft bearing, supports described output shaft at the first axial location；
Prop up support component, support described output shaft at the second axial location；
Gear-box, at least accommodates described sun gear, planetary gear and planetary wheel carrier；
Pad, is arranged on described between support component and described gear-box；
Described output shaft bearing is arranged between described output shaft and described gear-box, and described support component is arranged on the outside of described gear-box, and described output shaft constitutes being rotationally connected with described first axle as axle with described gear-box by described support component；
Wherein, described support component also includes:
Upper end cover, contacts with described gear-box；
Bottom end cover, contacts with described output shaft；
Rolling member, is arranged between described upper end cover and described bottom end cover；
Described upper end cover is relatively rotated with described bottom end cover composition by described rolling member；Described pad is additionally arranged between the outer wall of described upper end cover and described gear-box.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015207343750 | 2015-09-21 | ||
| CN201520734375 | 2015-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205438464U true CN205438464U (en) | 2016-08-10 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521117503.3U Active CN205438464U (en) | 2015-09-21 | 2015-12-28 | Power tool |
| CN201511005110.8A Pending CN106541167A (en) | 2015-09-21 | 2015-12-28 | Torsion exports instrument |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511005110.8A Pending CN106541167A (en) | 2015-09-21 | 2015-12-28 | Torsion exports instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN205438464U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637320B (en) * | 2018-07-28 | 2019-07-16 | 张岩 | A kind of antioverloading electric drill |
| CN113858134A (en) * | 2020-06-30 | 2021-12-31 | 南京德朔实业有限公司 | Torque output tool |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006228828A1 (en) * | 2005-04-01 | 2006-10-05 | Tomactech A/S | A planet gear |
| DE102006025538A1 (en) * | 2006-06-01 | 2007-12-06 | Metabowerke Gmbh | Electric hand tool |
| CN201027929Y (en) * | 2007-03-26 | 2008-02-27 | 无锡康格工业设计有限公司 | Multilevel reduction gear box |
| KR100947355B1 (en) * | 2008-02-12 | 2010-03-15 | 윤근수 | Power Transmission Device using Planetary Gear with Multi-gear Train and its Utilization |
| DK177641B1 (en) * | 2010-04-29 | 2014-01-20 | Hilti Ag | A power tool |
| CN102335904B (en) * | 2010-07-20 | 2014-04-16 | 苏州宝时得电动工具有限公司 | Power tool |
| CN202266645U (en) * | 2011-08-01 | 2012-06-06 | 庆腾精密科技股份有限公司 | Multi-stage shift transmission device |
| CN202318261U (en) * | 2011-08-18 | 2012-07-11 | 王云逸 | Electric tool speed changer |
| CN205437247U (en) * | 2015-12-28 | 2016-08-10 | 南京德朔实业有限公司 | Torque output tool |
-
2015
- 2015-12-28 CN CN201521117503.3U patent/CN205438464U/en active Active
- 2015-12-28 CN CN201511005110.8A patent/CN106541167A/en active Pending
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| Publication number | Publication date |
|---|---|
| CN106541167A (en) | 2017-03-29 |
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