CN107139140A - A kind of hand held power machine with centralising device - Google Patents
A kind of hand held power machine with centralising device Download PDFInfo
- Publication number
- CN107139140A CN107139140A CN201710543741.8A CN201710543741A CN107139140A CN 107139140 A CN107139140 A CN 107139140A CN 201710543741 A CN201710543741 A CN 201710543741A CN 107139140 A CN107139140 A CN 107139140A
- Authority
- CN
- China
- Prior art keywords
- planet carrier
- face
- main shaft
- slave unit
- hand held
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 230000013011 mating Effects 0.000 claims abstract description 7
- 230000004323 axial length Effects 0.000 claims description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
Abstract
The present invention relates to a kind of hand held power machine with centralising device, the main shaft of the hand held power machine one section away from tool heads is provided with the slave unit that can not be connected with the relative rotation with main shaft, the main shaft passes through slave unit, clamping body and locating snap ring with the logical heart face of cylinder are supported on the housing of hand held power machine, solution lock section on planet carrier is engaged with the clamping body interval with the clamping face of the excircle positioned at slave unit, wherein, the end face of slave unit towards planet carrier is provided with the centering piece of cylindrical projection shape, planet carrier is on away from main shaft end face provided with the centring hole with centering piece mating reaction, the centring hole and center drilling where carrying piece and solution lock section are coaxial, and it is coaxial with the centering piece.The present invention can greatly improve concentricity, and it is noise in toolroom machine use effectively to reduce hand-held.
Description
Technical field
The present invention relates to field of power tools, particularly a kind of hand held power machine with centralising device.
Background technology
A kind of presently disclosed DE69921250T2, it is known that toolroom machine with motor, fixed in relative housing, circle
A lock spindle taking device is disposed in the chamber of cylindricality, the chamber includes the jackshaft of driving side, the lock spindle taking device bag
Include a prismatic slave unit.Cannelure is provided with the seamed edge of prism, the finger-like carrying piece being axially directed to is with week
It is scarfed to the gap on direction in these cannelures.Carrying piece is formed on countershaft-gear, in prismatic surface and cylindrical cavity
Or be arranged between the inwall for the sleeve that in the chamber, relative housing is fixed and be provided with pinch roller.It is electronic in normal work
The torque of machine is delivered on countershaft-gear by little gear, and is delivered to from there through carrying piece on slave unit, should
Slave unit regularly coordinates on jackshaft.By jackshaft drive jackshaft little gear, the jackshaft little gear with it is driven
Gear engagement and therefore drive shaft.When the torque being delivered to by driven gear on jackshaft is more than what countershaft-gear was transmitted
During torque, slave unit rotates relative to carrying piece in predetermined inner space, and pinch roller is in slave unit and phase
Apply clamping action between the cylindrical cavity fixed to housing so that the torque produced by main shaft is supported on housing and blocked
Main shaft.
Another patent of invention CN102271869B, discloses a kind of shaft lock structure, wherein the clamping body of pinch roller stroke and
It is enclosed in the locating snap ring of the pinch roller to be directly engaged on towards on the section of main shaft, and exists in circumferential direction in planet carrier
Stroke has a guide part towards main shaft end face for axially protruding past planet carrier between carrying piece, the guide part with it is prismatic
Take the rounded edge collective effect of ejector half profile portion.The seamed edge for taking ejector half profile portion with prism is rounded on slave unit
And the part face of one cylinder of stroke.The outer surface of the slave unit is made up of arc surface and plane, such spindle processing
Get up cumbersome, the coaxial precision of planet carrier and main shaft also needs to improve again in addition.
The content of the invention
The present invention proposes a kind of hand held power machine with centralising device, including rotatable shaft and planet carrier, described
Planet carrier includes carrying piece, so that fixed gap transmits torque to one and can not rotated against with the main shaft really in a rotational direction
On the slave unit of ground connection, the main shaft is supported on described by slave unit, clamping body and the locating snap ring with the face of cylinder
On the housing of hand held power machine；The planet carrier includes the axially projecting solution towards the main shaft end face in the planet carrier
Lock section, the clamping face of excircle of the solution lock section with the clamping body and positioned at the slave unit is engaged；It is described to take
Part is circumferentially distributed on the center drilling of the planet carrier of plate-like, and the center drilling and the planet carrier are coaxial；The follower
The end face of part towards the planet carrier is provided with the centering piece of cylindrical projection shape, and the planet carrier is in the end face away from the main shaft
Provided with centring hole with the centering piece mating reaction, the centring hole and center drilling where the carrying piece are coaxial,
And it is coaxial with the centering piece.
According to a further embodiment of the present invention, the diameter of the centring hole is less than the diameter of the center drilling.
According to a further embodiment of the present invention, the axial length of the centering piece and the axial depth of centring hole are substantially
It is identical.
According to another embodiment of the present invention, a kind of hand held power machine with centralising device, including rotatable master
Axle, planet carrier and second layer central gear, the planet carrier include carrying piece, with a rotational direction really fixed gap by torque
It is delivered on a slave unit that can not be connected with the relative rotation with the main shaft, the main shaft passes through slave unit, clamping body
On the housing that the hand held power machine is supported on the locating snap ring with the face of cylinder；The planet carrier includes axially projecting in institute
The solution lock section towards the main shaft end face of planet carrier is stated, the solution lock section is with the clamping body and positioned at the slave unit
The clamping face of excircle is engaged；The carrying piece is circumferentially distributed on the center drilling of the planet carrier of plate-like, and the center is opened
Hole and the planet carrier are coaxial；The second layer central gear is arranged on the planet carrier and end face phase where the solution lock section
To reverse side on, the slave unit towards the planet carrier end face be provided with cylindrical projection shape centering piece, described second
Layer central gear is being provided with the centring hole with the centering piece mating reaction, the centering on a side end face of the main shaft
Hole and the second layer central gear are coaxial and coaxial with the centering piece.
According to a further embodiment of the present invention, the second layer central gear is in the side end face close to the main shaft
Boss is provided with, the centring hole is arranged on the boss.
According to a further embodiment of the present invention, the carrying piece and the solution lock section axially spaced-apart are distributed in plate-like
On the center drilling of planet carrier.
According to a further embodiment of the present invention, the carrying piece is circumferentially distributed in the center drilling of the planet carrier of plate-like
On, the solution lock section is diametrically separated by a certain distance with the carrying piece.
According to a further embodiment of the present invention, the axial cross section of the slave unit is equilateral hexagon.
According to a further embodiment of the present invention, the solution lock section is with the clamping face on the slave unit preferably in footpath
There is certain distance upwards.
By embodiment of the present invention, concentricity can be greatly improved, centring hole and main shaft centering are set, it is ensured that main shaft
With the axiality of centring hole, while install planet carrier on gear assembly also using the center of planet carrier be centring hole center as
Center, then also ensure that the axiality of gear assembly and main shaft, and on the premise of axiality is greatly improved, effectively reduction is used
In noise.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the part explosive view of one embodiment of the present of invention.
Fig. 2 is the planet carrier stereogram of one embodiment of the present of invention.
Fig. 3 is the main shaft part sectional view of the cordless power tool of one embodiment of the present of invention.
Fig. 4 is the part explosive view of an alternative embodiment of the invention.
Fig. 5 is the planet carrier stereogram of an alternative embodiment of the invention.
Fig. 6 is the main shaft part sectional view of the cordless power tool of an alternative embodiment of the invention.
Fig. 7 locks released state schematic diagram for the axle of the present invention.
Fig. 8 locks lock-out state schematic diagram for the axle of the present invention.
Embodiment
A kind of hand held power machine with centralising device of the present embodiment, spindle shaft lock explosive view institute as shown in Figure 1
Show, including rotatable shaft 1 and planet carrier 9.Main shaft 1 is provided with one end away from tool heads and can not rotated against with the main shaft 1
Slave unit 5, the preferably slave unit axial cross section is equilateral hexagon, and circumferencial direction is made up of multiple clamping faces.It is driven
The end face of part towards planet carrier 9 is provided with the centering piece 6 with the cylindrical projection shape of slave unit 5, and the centering piece 6 can be fixed
And without relative motion on the end face of slave unit 5, what be can also be fixed and can rotate against is arranged on follower
On the end face of part 5.Main shaft 1 clamps face 4, clamping body 2 and the locating snap ring with the logical heart face of cylinder by slave unit 5 and thereon
7 are supported on the housing of hand held power machine.
As shown in Figures 2 and 3, planet carrier 9 includes carrying piece 11 and solution lock section 8, and wherein carrying piece 11 is with direction of rotation
On really fixed gap transmit torque to 5, solution lock section 8 on a slave unit that can not be connected with the relative rotation with the main shaft 1
It is axially projecting in planet carrier towards main shaft end face.The present embodiment is preferably provided with carrying piece 11 and the circumferentially-spaced distribution of solution lock section 8
On the center drilling of the planet carrier 9 of plate-like, the center drilling and planet carrier 9 are coaxial.The shape of center drilling and slave unit 5
Shape it is roughly the same, three sides of wherein hexagon are set to carrying piece 11, and the other three is extended outwardly until solution lock section 8
Outer face.The planet carrier can be with as shown in figure 5, set carrying piece 11 and solution lock section 8 to be circumferentially distributed in the planet carrier 9 of plate-like
On center drilling, the center drilling and planet carrier 9 are coaxial.The shape of center drilling is roughly the same with the shape of slave unit 5, its
Six sides of middle hexagon are disposed as carrying piece 11, and solution lock section 8 is set diametrically at a certain distance from carrying piece 11.
Planet carrier 9 by carrying piece 11, in a rotational direction really fixed gap transmit torque to can not be relative with main shaft 1
On the slave unit 5 rotatably connected.The axially projecting end face towards main shaft 1 in planet carrier 9 of solution lock section 8, when its with it is driven
When being assembled together on part, solution lock section 8 coordinates with clamping face 3, and being preferably provided with solution lock section 8 and clamping face 3 diametrically has
Certain distance, is so mismatched with clamping face 3, then does not transmit moment of torsion, and solution lock section 8 is there will be no stress generation, then solution lock section 8 is not
It is fragile.The set-up mode of preferred solution lock section and carrying piece for more than, herein accordingly, between solution lock section 8 and clamping body 2
Every be engaged with multiple clamping faces of the excircle positioned at slave unit.
The end face away from main shaft is provided with the centring hole 10 with the mating reaction of centering piece 6, the centring hole 10 in planet carrier 9
It is coaxial with center drilling, and diameter of the diameter less than center drilling of centring hole, axial length and the centring hole 10 of centering piece 6
Axial depth is roughly the same.
Clamping face is inserted into the center drilling of planet carrier 9 and to determine corresponding the taking of gap support planet carrier 9
On moving part 11, the determination gap allows planet carrier 9 and the rotary motion of the determination of the property taken of main shaft 1.In the folder of slave unit 5
Tight face 4 be provided with the row of pinch roller 2 into clamping body, they are in confined state by the locating snap ring 7 with center circle cylinder
Surround.
As shown in fig. 7, in normal work, as shown by arrows in FIG., torque is delivered to from planet carrier 9 by carrying piece 11
On the clamping face 4 of slave unit.As shown in figure 8, under special circumstances, as shown by arrows in FIG., planet carrier is delivered to from main shaft 1
Upper 9 torque exceedes the torque of driving, then clamp face by clamping body in the clamping face of main shaft and the hollow cylinder of locating snap ring
Set up between face and clamp connection, so that the torque applied by main shaft is supported on the housing of drive device and the main shaft is locked
Only.
Centring hole and main shaft centering are set in one embodiment of the invention, planet carrier, it is ensured that main shaft and centring hole
Axiality, while install planet carrier on gear assembly be also the center of centring hole by the center of planet carrier centered on, then
The axiality of gear assembly and main shaft is also ensure that, and on the premise of axiality is greatly improved, effectively reduces making an uproar in use
Sound.
An alternative embodiment of the invention, as shown in figure 4, a kind of hand held power machine with centralising device includes revolving
Turn main shaft 1 and planet carrier 9.Main shaft 1 is provided with the slave unit 5 that can not be rotated against with the main shaft 1 in one end away from tool heads,
It is preferred that the slave unit axial cross section is equilateral hexagon, circumferencial direction is made up of multiple clamping faces.Slave unit is towards planet
The end face of frame 9 is provided with the centering piece 6 with the cylindrical projection shape of slave unit 5, and the centering piece 6 can be fixed and without relative motion
On the end face of slave unit 5, can also be fixed and can rotate against on the end face of slave unit 5.
Main shaft 1 is supported on hand-held thereon by slave unit 5 and clamping face 4, clamping body 2 and the locating snap ring 7 with the logical heart face of cylinder
On the housing of formula toolroom machine.
As shown in Figure 2 and Figure 6, planet carrier 9 includes carrying piece 11 and solution lock section 8, and wherein carrying piece 11 is with direction of rotation
On really fixed gap transmit torque to 5, solution lock section 8 on a slave unit that can not be connected with the relative rotation with the main shaft 1
It is axially projecting in planet carrier towards main shaft end face.The present embodiment is preferably provided with carrying piece 11 and the circumferentially-spaced distribution of solution lock section 8
On the center drilling of the planet carrier 9 of plate-like, the center drilling and planet carrier 9 are coaxial.The shape of center drilling and slave unit 5
Shape it is roughly the same, three sides of wherein hexagon are set to carrying piece 11, and the other three is extended outwardly until solution lock section 8
Outer face.The planet carrier can be with as shown in figure 5, set carrying piece 11 and solution lock section 8 to be circumferentially distributed in the planet carrier 9 of plate-like
On center drilling, the center drilling and planet carrier 9 are coaxial.The shape of center drilling is roughly the same with the shape of slave unit 5, its
Six sides of middle hexagon are disposed as carrying piece 11, and solution lock section 8 is set diametrically at a certain distance from carrying piece 11.
Second layer central gear 13 is installed on reverse side relative with end face where solution lock section in planet carrier 9, the second layer
Central gear 13 is being provided with the centring hole 14 with the mating reaction of centering piece 6, wherein centring hole 14 on a side end face of main shaft 1
It is coaxial with second layer central gear 13 and coaxial with centering piece.The present embodiment is preferred, in second layer central gear close to main shaft
One side end face is provided with boss, and centring hole 14 is set on the boss.
As shown in fig. 6, when assembled, locating snap ring 7 is arranged on clamping face and the outside of clamping body, 9 sets of planet carrier
On slave unit, the planet carrier is axial arranged along main shaft with locating snap ring.Centering piece 6 passes through locating snap ring 7 and planet carrier 9, with
Centring hole 14 on second layer central gear 13 coordinates, and realizes that centering is positioned.
Another embodiment of the invention, is set in centring hole and main shaft pair on second layer central gear, it is ensured that main
The axiality of axle and centring hole, while the axiality of gear assembly and main shaft, and on the premise of axiality is greatly improved, effectively
Reduce the noise in use.
In two embodiments above, clamp face and use same plane symmetric design, can be using polygon car during processing
Technique is processed, and substantially increases processing efficiency and machining accuracy.
To the disclosed embodiments, embodiment illustrated herein is not restricted to specifically.For the present invention made it is any
Modification, equivalent substitution, improvement etc., all should belong to protection scope of the present invention.
Claims (9)
1. a kind of hand held power machine with centralising device, including rotatable shaft and planet carrier, the planet carrier include taking
Moving part, with a rotational direction really fixed gap transmit torque to one with the main shaft can not be connected with the relative rotation it is driven
On part, the main shaft is supported on the hand held power machine by slave unit, clamping body and the locating snap ring with the face of cylinder
Housing on；The planet carrier includes the axially projecting solution lock section towards the main shaft end face in the planet carrier, the solution
The clamping face of excircle of the lock section with the clamping body and positioned at the slave unit is engaged；The carrying piece is circumferentially distributed in
On the center drilling of the planet carrier of plate-like, the center drilling and the planet carrier are coaxial；It is characterized in that：The slave unit
End face towards the planet carrier is provided with the centering piece of cylindrical projection shape, and the planet carrier is on the end face away from the main shaft
Provided with the centring hole with the centering piece mating reaction, the centring hole and center drilling where the carrying piece are coaxial, and
It is coaxial with the centering piece.
2. a kind of hand held power machine with centralising device according to claim 1, it is characterised in that：The centring hole
Diameter be less than the center drilling diameter.
3. a kind of hand held power machine with centralising device according to claim 2, it is characterised in that：The centering piece
Axial length it is roughly the same with the axial depth of centring hole.
4. a kind of hand held power machine with centralising device, including rotatable shaft, planet carrier and second layer central gear, institute
Planet carrier is stated including carrying piece, with a rotational direction really fixed gap transmit torque to one can not relative rotation with the main shaft
On the slave unit for turning ground connection, the main shaft is supported on institute by slave unit, clamping body and the locating snap ring with the face of cylinder
State on the housing of hand held power machine；The planet carrier include it is axially projecting in the planet carrier towards the main shaft end face
Solution lock section, the clamping face of excircle of the solution lock section with the clamping body and positioned at the slave unit is engaged；It is described to take
Moving part is circumferentially distributed on the center drilling of the planet carrier of plate-like, and the center drilling and the planet carrier are coaxial；Described second
Layer central gear is arranged on reverse side relative with end face where the solution lock section on the planet carrier, it is characterised in that：It is described
The end face of slave unit towards the planet carrier is provided with the centering piece of cylindrical projection shape, and the second layer central gear is close
One side end face of the main shaft is provided with the centring hole with the centering piece mating reaction, and the centring hole and the second layer are too
Positive gear is coaxial, and coaxial with the centering piece.
5. a kind of hand held power machine with centralising device according to claim 4, it is characterised in that：The second layer
Central gear is provided with boss on a side end face of the close main shaft, and the centring hole is arranged on the boss.
6. a kind of hand held power machine with centralising device according to any claim in claim 1 to 5, it is special
Levy and be：The carrying piece and the solution lock section axially spaced-apart are distributed on the center drilling of the planet carrier of plate-like.
7. a kind of hand held power machine with centralising device according to any claim in claim 1 to 5, it is special
Levy and be：The carrying piece is circumferentially distributed on the center drilling of the planet carrier of plate-like, and the solution lock section exists with the carrying piece
Radially it is separated by a certain distance.
8. a kind of hand held power machine with centralising device according to any claim in claim 1 to 5, it is special
Levy and be：The axial cross section of the slave unit is equilateral hexagon.
9. a kind of hand held power machine with centralising device according to any claim in claim 1 to 5, it is special
Levy and be：The solution lock section preferably diametrically has certain distance with the clamping face on the slave unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543741.8A CN107139140B (en) | 2017-07-05 | 2017-07-05 | Hand-held power tool with centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543741.8A CN107139140B (en) | 2017-07-05 | 2017-07-05 | Hand-held power tool with centering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107139140A true CN107139140A (en) | 2017-09-08 |
| CN107139140B CN107139140B (en) | 2024-03-19 |
Family
ID=59785256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710543741.8A Active CN107139140B (en) | 2017-07-05 | 2017-07-05 | Hand-held power tool with centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107139140B (en) |
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| CN1717301A (en) * | 2002-12-19 | 2006-01-04 | 罗伯特·博世有限公司 | Transmission device, especially for the transmission device of electronic hand held machine tool |
| US7048107B1 (en) * | 1997-08-26 | 2006-05-23 | Atlas Copco Electric Tools Gmbh | Driving device |
| JP2011230208A (en) * | 2010-04-26 | 2011-11-17 | Makita Corp | Bit installing unit of screw-fastening tool |
| CN102271869A (en) * | 2009-01-08 | 2011-12-07 | 罗伯特·博世有限公司 | Machine tool having a spindle driven by a drive apparatus |
| US20130025901A1 (en) * | 2010-03-08 | 2013-01-31 | Zhaojun Shi | Power tool having a spindle lock |
| CN103770091A (en) * | 2012-10-25 | 2014-05-07 | 罗伯特·博世有限公司 | Hand-held power tool device |
| US20140296020A1 (en) * | 2013-03-29 | 2014-10-02 | Chervon (Hk) Limited | Electric tool |
| CN105252496A (en) * | 2008-10-14 | 2016-01-20 | 罗伯特·博世有限公司 | Hand-held machine tool having automatic shaft locking |
| CN106015543A (en) * | 2016-07-19 | 2016-10-12 | 青岛联源通机械有限公司 | Welding spattering-preventing method for split planet carrier |
| CN106914847A (en) * | 2015-12-28 | 2017-07-04 | 南京德朔实业有限公司 | Torque output tool |
| CN206913086U (en) * | 2017-07-05 | 2018-01-23 | 浙江格致工具有限公司 | A kind of hand held power machine with centralising device |
-
2017
- 2017-07-05 CN CN201710543741.8A patent/CN107139140B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7048107B1 (en) * | 1997-08-26 | 2006-05-23 | Atlas Copco Electric Tools Gmbh | Driving device |
| CN1437522A (en) * | 2000-04-18 | 2003-08-20 | 布莱克-德克尔公司 | Power driven rotary device |
| CN1717301A (en) * | 2002-12-19 | 2006-01-04 | 罗伯特·博世有限公司 | Transmission device, especially for the transmission device of electronic hand held machine tool |
| US6715562B1 (en) * | 2003-05-08 | 2004-04-06 | Power Network Industry, Co., Ltd. | Output shaft locking device |
| CN105252496A (en) * | 2008-10-14 | 2016-01-20 | 罗伯特·博世有限公司 | Hand-held machine tool having automatic shaft locking |
| CN102271869A (en) * | 2009-01-08 | 2011-12-07 | 罗伯特·博世有限公司 | Machine tool having a spindle driven by a drive apparatus |
| US20130025901A1 (en) * | 2010-03-08 | 2013-01-31 | Zhaojun Shi | Power tool having a spindle lock |
| JP2011230208A (en) * | 2010-04-26 | 2011-11-17 | Makita Corp | Bit installing unit of screw-fastening tool |
| CN103770091A (en) * | 2012-10-25 | 2014-05-07 | 罗伯特·博世有限公司 | Hand-held power tool device |
| US20140296020A1 (en) * | 2013-03-29 | 2014-10-02 | Chervon (Hk) Limited | Electric tool |
| CN106914847A (en) * | 2015-12-28 | 2017-07-04 | 南京德朔实业有限公司 | Torque output tool |
| CN106015543A (en) * | 2016-07-19 | 2016-10-12 | 青岛联源通机械有限公司 | Welding spattering-preventing method for split planet carrier |
| CN206913086U (en) * | 2017-07-05 | 2018-01-23 | 浙江格致工具有限公司 | A kind of hand held power machine with centralising device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107139140B (en) | 2024-03-19 |
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