CN106337908B - Torque transmission device and power tool with the torque transmission device - Google Patents
Torque transmission device and power tool with the torque transmission device Download PDFInfo
- Publication number
- CN106337908B CN106337908B CN201510406636.0A CN201510406636A CN106337908B CN 106337908 B CN106337908 B CN 106337908B CN 201510406636 A CN201510406636 A CN 201510406636A CN 106337908 B CN106337908 B CN 106337908B
- Authority
- CN
- China
- Prior art keywords
- ring gear
- locking piece
- transmission device
- torque transmission
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
-
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- 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
- F16H2700/00—Transmission housings and mounting of transmission components therein; Cooling; Lubrication; Flexible suspensions, e.g. floating frames
Abstract
The invention discloses a kind of torque transmission devices, including：Operate ring, ring gear and locking piece, operation ring can be around a center axis thereof, and ring gear can moving radially along central axis around center axis thereof, locking piece；Wherein, ring gear is formed with：Internal tooth and external tooth, internal tooth are set to the inner circumferential of ring gear, and external tooth is set to the periphery of ring gear；Locking piece is formed with the lock tooth and closing piece being oppositely arranged on radially of the central axis；Operation ring is formed with：Oppression department and release portion, oppression department, which can oppress locking piece, makes lock tooth coordinate with external tooth, and the closing piece that release portion can accommodate locking piece makes lock tooth disengage the cooperation with external tooth；Central axis radially, locking piece is set between operation ring and ring gear, and in the side of ring gear, the closing piece of locking piece is located at the side for operating ring for the lock tooth position of locking piece；In the circumferential direction of central axis, the circumferential position different in operation ring is arranged in oppression department and release portion.The torque transmission device of the present invention can realize high low speed switching.
Description
Technical field
The present invention relates to a kind of power tool fields, and in particular to the torque transmission device in a kind of power tool.
Background technology
In existing power tool, it will usually which a torsion that can reduce rotating speed is set between prime mover and output system
Square transmission device, such as say gear-box.Gear-box includes multiple-stage planetary gear train system, and planetary gear system includes sun gear, row
Star-wheel and ring gear, in order to realize that gear-box has different transmission ratios, in the prior art usually by ring gear along axis
The locking and unlock of the circumferential position of the mobile realization ring gear in direction.Meanwhile it going during switching high low speed in order to prevent
Star gear train is locked and damages component, and one neutral gear of setting is usually also needed between high low gear.But such nothing
The increase doubted the displacement that can increase ring gear axial position and cause gear-box axial length, to cause power tool size
Increase, be unfavorable for the use of user.
Invention content
To solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of torques that can realize high low speed switching
Transmission device.
In order to realize that above-mentioned target, the present invention adopt the following technical scheme that：
A kind of torque transmission device, including：
Ring is operated, it can be around a center axis thereof；
Ring gear, can be around center axis thereof；
Locking piece, can moving radially along central axis；
Wherein,
Ring gear is formed with：
Internal tooth is set to the inner circumferential of ring gear；
External tooth is set to the periphery of ring gear；
Locking piece is formed with the lock tooth and closing piece being oppositely arranged on radially of the central axis；
Operation ring is formed with：
Oppression department, can oppress locking piece makes lock tooth coordinate with external tooth；
Release portion, can accommodate the closing piece of locking piece makes lock tooth disengage the cooperation with external tooth；
Central axis radially, locking piece be set to operation ring and ring gear between, the lock tooth position of locking piece is in ring gear
Side, the closing piece of locking piece is located at the side of operation ring；
In the circumferential direction of central axis, the circumferential position different in operation ring is arranged in oppression department and release portion.
Further, torque transmission device further includes：
Guide part, the circumferential position for limiting locking piece；
Guide part includes：
Guide groove extends radially through guide part along central axis；
Locking piece is at least partially embedded into guide groove.
Further, guide groove includes：Two guiding surfaces, diameter of the distance between two guiding surfaces along central axis
It is gradually reduced to ecto-entad；Locking piece includes：Can respectively with two guiding surfaces limit inclined-plane disposed in parallel.
Further, oppression department includes one section of arc-shaped compressing wall surface；Release portion includes opposite compressing wall surface substantially edge
The release groove of central axis being radially outward recessed.
Further, the number of locking piece is even number, and even number locking piece opposing axial is symmetrical arranged；Release
The number in portion is identical as the number of locking piece.
Further, in the circumferential direction of central axis, oppression department and the setting of release portion interval.
Further, torque transmission device further includes：
Actuator, including the first wheel portion and the second wheel portion；
Planetary gear can coordinate with the second wheel portion；
Wheel carrier is formed with the installation axle that can rotatably install planetary gear；
Planetary gear and the first wheel portion are each formed with the driving cog that can coordinate with the internal tooth of ring gear.
Further,
When operation ring turns to the position for making lock tooth disengage with external tooth, ring gear is moved along central axial direction is parallel to
It moves to the first position coordinated with planetary gear and the first wheel portion；
When operating ring and turning to the position for making lock tooth and external tooth cooperation, ring gear edge is parallel to central axial direction and is moved to
The second position only coordinated with planetary gear.
Further, torque transmission device further includes：
Connector can drive ring gear edge to be parallel to central axial direction when operating ring rotation and move；
Ring gear includes：
Teeth portion is taken turns, internal tooth and external tooth are formed；
Groove portion is taken turns, the race coordinated with connector is formed in the outer rim of ring gear；
The different axial positions in ring gear are arranged in external tooth and race.
The present invention also proposes a kind of power tool, which includes above-described torque transmission device.
The invention has the beneficial effects that：The torque transmission device to the locking of ring gear circumferential position by realizing high low speed
Switching, and neutral gear need not be arranged in ring gear, can directly switch between high low gear, to reduce the axis of torque transmission device
To size.
Description of the drawings
Fig. 1 is the structural schematic diagram of the power tool of a preferred embodiment of the present invention；
Fig. 2 is the schematic diagram of the part-structure inside the power tool of Fig. 1；
Fig. 3 is structure shown in Fig. 2 along the schematic cross-section of line A-A, the circumferential position of the ring gear of locking piece locking at this time；
Fig. 4 is structure shown in Fig. 2 along the schematic cross-section of line A-A, the cooperation of locking piece disengaging and ring gear at this time；
Fig. 5 is the location diagram of guide part and locking piece；
Fig. 6 be ring gear, actuator, planetary gear, wheel carrier and connector location diagram, at this time ring gear simultaneously with driving
The first wheel portion and planetary gear of part engage；
Fig. 7 is structure shown in Fig. 6 along the sectional view of line B-B；
Fig. 8 be ring gear, actuator, planetary gear, wheel carrier and connector location diagram, at this time ring gear only with planetary gear
Engagement;
Fig. 9 is structure shown in Fig. 8 along the sectional view of line C-C；
Figure 10 is the part-structure and axis lock set and the structural relation figure of torsion adjusting part of torque transmission device；
Figure 11 is the position relationship of next stage planetary gear, next stage ring gear, next stage operation ring and next stage locking piece
Figure；
Figure 12 is the structural schematic diagram of the axis lock frame in Figure 10.
Specific implementation mode
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
The present invention proposes a kind of torque transmission device and the power tool with the torque transmission device.
Fig. 1 show the structural schematic diagram of the power tool of a preferred embodiment of the present invention；Fig. 2 show Fig. 1's
The schematic diagram of part-structure inside power tool.Shown in Fig. 1 and Fig. 2, power tool 100 includes：Prime mover
10, torque transmission device 20 and output 30, wherein the power that torque transmission device 20 is used to export on prime mover 10 transmits
To output 30.
Fig. 3 show structure shown in Fig. 2 along the schematic cross-section of line A-A, the circumferential position of the ring gear of locking piece locking at this time；
Fig. 4 show structure shown in Fig. 2 along the schematic cross-section of line A-A, the cooperation of locking piece disengaging and ring gear at this time.Please with reference to
Fig. 1 to Fig. 4, torque transmission device 20 of the invention include：Operate ring 11, ring gear 12 and locking piece 13.
11 roughly annular structure of ring, center can be operated around a center axis thereof, preferably by operating ring 11
Axis passes through the center of circle of loop configuration.Ring gear 12 also can be to operate the center axis thereof of ring 11, preferably, ring gear 12
Also roughly annular structure, the center of circle of ring gear 12 is on the central axis of operation ring 11, in other words, ring gear 12 and operation ring 11
It can rotate coaxially.Locking piece 13 can moving radially along central axis.In order to which direction illustrates technical scheme of the present invention, especially
Make defined below, the direction where defining central axis is axial, and the circumferencial direction around central axis is circumferential, in vertical
Mandrel line and the direction intersected with central axis are radial.
Ring gear 12 is formed with internal tooth 121 and external tooth 122, and internal tooth 121 is set to the inner circumferential of ring gear 12, and external tooth 122 is set to
The periphery of ring gear 12.Locking piece 13 is formed with lock tooth 131 and closing piece 132, lock tooth 131 and closing piece 132 it is central axial radially
It is oppositely arranged.Operation ring 11 is formed with oppression department 111 and release portion 112.As shown in figure 3, oppression department 111 can oppress locking piece 13
So that the lock tooth 131 of locking piece 13 coordinates with external tooth 122, to lock the circumferential position of ring gear 12.As shown in figure 4, release portion
112 closing pieces 132 that can accommodate locking piece 13 enable lock tooth 131 to disengage the cooperation with external tooth 122.To in the pressure of operation ring 11
Under the action of compeling portion 111 and release portion 112, locking piece 13 can move radially.
Central axis radially, locking piece 13 be set to operation ring 11 and ring gear 12 between, the lock tooth of locking piece 13
131 are located at the side of ring gear 12, and the closing piece 132 of locking piece 13 is located at the side of operation ring 11.In other words, along central axis
Radial, lock 131 lock block opposite lock block 132 of tooth is closer to ring gear 12, and the opposite tooth 131 of locking of closing piece 132 is closer to operation ring 11.
In the circumferential direction of central axis, the circumferential position different in operation ring 11 is arranged in oppression department 111 and release portion 112.
In this way, when operating ring 11 with center axis thereof, oppression department 111 and release portion 112 can be contacted with locking piece 13 successively.
Therefore, when operation ring 11 turns to position as shown in Figure 3 using central axis as axis, the oppression department of ring 11 is operated
111 contact with the closing piece 132 of locking piece 13, and oppression department 111 oppresses the lock tooth 131 and ring gear 12 that locking piece 13 makes locking piece 13
External tooth 122 coordinate, at this moment circumferential position locking of the ring gear 12 with respect to locking piece 13.And when operation ring 11 is using central axis as axis
When turning to position as shown in Figure 4, the release portion 112 of operation ring 11 is contacted with the closing piece 132 of locking piece 13, and release portion 112 makes
Locking piece 13 lock tooth 131 can be detached from the external tooth of ring gear 12 122 cooperation so that ring gear 12 at this time can be opposite
Locking piece 13 is dynamic by shaft rotation of central axis.In this way, can realize the locking of ring gear 12 by the rotation of operation ring 11 and release
It puts, therefore for that can have different rotation status from the driving member of its internal tooth 121 cooperation inside ring gear 12, to realize
The switching of 20 high low speed of torque transmission device.To ring gear 12 be made to be locked by the same axial position setting in ring gear 12
Fixed or unlock locking piece 13, avoiding setting neutral gear in the prior art prevents 20 axis of stuck caused torque transmission device
To length increase, and then the problem of increase 100 axial dimension of power tool.
In order to realize that the technical solution, torque transmission device 20 further include guide part 14, guide part 14 is for limiting locking
The circumferential position of part 13.Fig. 5 show the location diagram of guide part and locking piece.Please with reference to Fig. 3 to Fig. 5, guide part
14 include guide groove 141, and guide groove 141 extends radially through guide part 14 along central axial, and locking piece 13 is along being parallel to central shaft
Line direction is at least partially embedded into guide groove 141.Further, guide groove 141 includes two guiding surfaces being oppositely arranged
141a, the distance between two guiding surface 141a are gradually reduced along the radial ecto-entad of central axis, corresponding locking piece
13 also include two limit inclined-planes 133 being oppositely arranged, and two limit inclined-planes 133 are parallel with corresponding guiding surface 141a respectively
Setting.In this way, the circumferential position counter-guide 14 of locking piece 13 can be locked, to which locking piece 13 can lock ring gear 12
Circumferential position.
In order to enable when the closing piece 132 of oppression department 111 and locking piece 13 contacts, the lock tooth 131 and ring gear of locking piece 13
12 external tooth 122 coordinates, and when release portion 112 and the closing piece 132 of locking piece 13 contact, the lock tooth 131 and tooth of locking piece 13
The external tooth 122 of ring 12 is detached from cooperation, and oppression department 111 further includes compressing wall surface 111a, and release portion 112 further includes release groove.Specifically
, the compressing wall surface 111a of oppression department 111 is one section of circular arc centered on central axis, the opposite compressing wall surface 111a of release groove
Substantially along the radially outward recess of central axis, it is furthermore preferred that release groove includes release wall surface 112a, release wall surface 112a is also
One section of circular arc centered on central axis.In other words, the distance of the release wall surface 112a distance center axis of release groove is big
In the distance of the compressing wall surface 111a distance center axis of oppression department 111, in this way, when operating the rotation of ring 11, because of operation ring
11 different parts are contacted with closing piece 132 enables the moving radially to outer with ring gear 12 along central axis of locking piece 13
Tooth 122 coordinates or is detached from the position of cooperation.
Preferably, the number of locking piece 13 is even number, and 13 opposing axial of even number locking piece is symmetrical
Setting, the number in release portion 112 is identical as the number of locking piece 13, and in the circumferential direction of central axis, oppression department 111 and release
The setting of the interval of portion 112.In this way when operating ring 11 and rotating, what oppression department 111 and release portion 112 can be successively connects with locking piece 13
It touches, and multiple locking pieces 13 can be contacted with oppression department 111 or release portion 112 simultaneously, it is locked to improve ring gear 12
Validity and stability.
Certainly, when torque transmission device 20 is driven by gear, as shown in Figures 6 to 9, preferably,
Torque transmission device 20 further includes：Actuator 15, planetary gear 16 and wheel carrier 17.Actuator 15 includes the first wheel portion 151 and the
Two wheel portions 152, planetary gear 16 and the second wheel portion 152 coordinate, and wheel carrier 17 is for installing planetary gear 16, planetary gear 16 and the first wheel portion
151 are each formed with the driving cog that can coordinate with the internal tooth 121 of ring gear 12.Specifically, the first wheel portion 151 has the first radius, the
There is two wheel portions 152 second radius, the first radius to be more than the second radius, and the second wheel portion 152 is also formed with driving cog, planetary gear 16
Number be it is multiple, multiple planetary gears 16 with the second wheel portion 152 coordinate.In order to install planetary gear 16, wheel carrier 17 is formed with peace
Axis is filled, planetary gear 16 is rotatably installed on wheel carrier 17.
In order to which the second wheel portion 152 and the rotating ratio of wheel carrier 17 of realizing actuator 15 can change, to realize that torque passes
Dynamic device 20 has different final output rotating speeds, operate ring 11 turn to so that lock tooth 131 is disengaged with external tooth 122 when,
Ring gear 12 is moved to the first position coordinated with planetary gear 16 and the first wheel portion 151 along central axial direction is parallel to simultaneously,
And when operating ring 11 and turning to the position for making lock tooth 131 and external tooth 122 coordinate, while ring gear 12 is along being parallel to central axis side
To being moved to the second position only coordinated with planetary gear 16.In this way, when ring gear 12 is moved to first position, planetary gear 16, tooth
Ring 12 and actuator 15 rotate synchronously, to which the rotating ratio of the first wheel portion 151 and wheel carrier 17 at this time is 1；And work as ring gear 12
When being moved to the second position, the circumferential position of ring gear 12 is locked, and planetary gear 16 can be rotated relative to ring gear 12, at this time the first round
Portion 151 and the rotating ratio of wheel carrier 17 are more than 1, slow down to realize.
In order to enable realizing that locking piece 13 locks or discharge ring gear 12 and ring gear 12 is gone back simultaneously when operation ring 11 rotates
It is moved along central axial direction is parallel to, torque transmission device 20 further includes connector 18, and ring gear 12 further includes 123 He of gear part
Take turns groove portion 124.Connector 18 can drive ring gear 12 to be moved along central axial direction is parallel to when operating ring 11 and rotating, specifically
, it includes a skewed slot to operate on ring 11, and the straight line where skewed slot intersects with central axis inclination, and connector 18 is at least partly stretched
Enter into skewed slot.The gear part 123 of ring gear 12 forms foregoing internal tooth 121 and external tooth 122, and wheel groove portion 124 is in ring gear 12
Periphery be formed with the race 124a coordinated with connector 18, and external tooth 122 and race 124a are arranged in the different of ring gear 12
Axial position.In this way, when operating ring 11 and rotating, under the action of skewed slot, connector 18 is along being parallel to central axial direction
It is mobile, and because connector 18 and race 124a cooperation, connector 18 again drive ring gear 12 also along being parallel to central axis
It moves in direction.It will be understood, connector 18 can not also be extend into skewed slot, but pass through a middleware and skewed slot
Cooperation drive connection part 18 movement.
It is known that would generally include that multiple-stage planetary gear train is united, therefore also will include more in torque transmission device 20
A ring gear 12, in this way, operation ring 11 can also be arranged while making a ring gear 12 be locked the locking of part 13 in we, moreover it is possible to
So that another ring gear 12 is moved to the position engaged from different gears along central axial direction is parallel to, is turned round to realize
Square transmission device 20 has more different output rotating speeds.
Preferably, as shown in Figure 10 to 12, power tool 100 of the invention further includes and torque transmission device 20
The torsion adjusting part 40 and axis lock set 50 of cooperation, wherein torque tumbler further include：It is next stage planetary gear 19, next
Grade ring gear 21, next stage operation ring 22 and next stage locking piece 23.Wheel carrier includes mounting portion 171 and output section 172, mounting portion
171 for installing planetary gear 16, and output section 172 with next stage planetary gear 19 for engaging, next stage locking piece 23 and locking piece
13 structure is identical, is used to lock or discharge the circumferential position of next stage ring gear 21, and next stage operates ring 22 when rotated
Next stage locking piece 23 can be driven to lock or discharge next stage ring gear 21.
Torsion adjusting part 40 is used to adjust the outputting torsion of power tool 100, the specific knot of the torsion adjusting part 40
Structure repeats no more.The torsion adjusting part 40 that focuses on of the present invention passes through the cooperation with next stage ring gear 21 so that instantly
When level-one ring gear 21 is discharged by next stage locking piece 23, torsion adjusting part 40 can adjust the fixed force of next stage ring gear 21,
To realize the adjusting of 100 outputting torsion of power tool.And when the circumferential position of next stage ring gear 21 is by next stage locking piece 23
When locking, next stage planetary gear 19 can be rotated relative to next stage ring gear 21, so that torque transmission device 20 can be with one
Determine torsion output.
Axis lock set 50 avoids the damage of prime mover 10 for locking 30 back transfer of output to the torsion of prime mover 10
It is bad.Axis lock set 50 includes axis lock frame 51, plectrum 52, axis lock pin 53 and annular element.Next stage planetary gear 19 is installed on axis lock
Frame 51, in other words, for next stage planetary gear 19, axis lock frame 51 is equivalent to the planet carrier of next stage planetary gear 19.Axis
It includes central through hole 511 to lock frame 51, and central through hole 511 connects output 30 by flat bit architecture, and axis locks the close next of frame 51
It is also formed with the groove 512 around central through hole 511 at the surface of grade planetary gear 19, plectrum 52 is accommodated in groove 512.Axis locks frame
51 edge is formed with holding tank 513, and holding tank 513 is for accommodating axis lock pin 53.Annular element is arranged around axis lock frame 51, axis
Lock pin 53 is located between the inner wall and holding tank 513 of annular element.Preferably, 21 one of annular element and next stage ring gear at
Type, in other words next stage ring gear 21 includes the ring of the ring gear portion 211 coordinated with next stage planetary gear 19 and formation annular element
Shape portion 212.In this way, plectrum 52 is set in the groove 512 of axis lock frame 51, axis lock pin 53 is located at the receiving at the edge of axis lock frame 51
Between slot 513 and annular element, so that the axial length of axis lock set 50 reduces, and then entire power tool 100 is reduced
Axial dimension.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical solution is all fallen in protection scope of the present invention.
Claims (10)
1. a kind of torque transmission device, including：
Ring is operated, it can be around a center axis thereof；
Ring gear, can be around the center axis thereof；
Locking piece, can moving radially along the central axis；
Wherein,
The ring gear is formed with：
Internal tooth is set to the inner circumferential of the ring gear；
External tooth is set to the periphery of the ring gear；
The locking piece be formed with it is described radially of the central axis on the lock tooth and closing piece that are oppositely arranged；
The operation ring is formed with：
Oppression department, can oppress the locking piece makes the lock tooth coordinate with the external tooth；
Release portion, can accommodate the closing piece of the locking piece makes the lock tooth disengage the cooperation with the external tooth；
The central axis radially, the locking piece is set between the operation ring and the ring gear, the locking
For the lock tooth position of part in the side of the ring gear, the closing piece of the locking piece is located at the side of the operation ring；
In the circumferential direction of the central axis, the circumferential position different in the operation ring is arranged in the oppression department and the release portion
It sets.
2. torque transmission device according to claim 1, which is characterized in that the torque transmission device further includes：
Guide part, the circumferential position for limiting the locking piece；
The guide part includes：
Guide groove extends radially through the guide part along the central axis；
The locking piece is at least partially embedded into the guide groove.
3. torque transmission device according to claim 2, which is characterized in that the guide groove includes：Two guiding surfaces,
The distance between two described guiding surfaces are gradually reduced along the radial ecto-entad of the central axis；The locking piece packet
It includes：Can respectively with two guiding surface limit inclined-planes disposed in parallel.
4. torque transmission device according to claim 1, which is characterized in that the oppression department includes one section of arc-shaped pressure
Compel wall surface；The release portion includes the relatively described compressing wall surface substantially along the release of the central axis being radially outward recessed
Slot.
5. torque transmission device according to claim 1, which is characterized in that the number of the locking piece is even number, and
The relatively described central axis of locking piece described in even number is symmetrical arranged；The number in the release portion and the number phase of the locking piece
Together.
6. torque transmission device according to claim 4, which is characterized in that described in the circumferential direction of the central axis
Oppression department and the setting of release portion interval.
7. according to the torque transmission device described in claim 1 to 6 any one, which is characterized in that the torque transmission device
Further include：
Actuator, including the first wheel portion and the second wheel portion；
Planetary gear can coordinate with second wheel portion；
Wheel carrier is formed with the installation axle that can rotatably install the planetary gear；
The planetary gear and first wheel portion are each formed with the driving cog that can coordinate with the internal tooth of the ring gear.
8. torque transmission device according to claim 7, which is characterized in that
When the operation ring turns to the position for making the lock tooth disengage with the external tooth, the ring gear edge is parallel to institute
It states central axial direction and is moved to the first position coordinated with the planetary gear and first wheel portion；
When the operation ring turns to the position for making lock tooth and the external tooth cooperation, the ring gear along be parallel to it is described in
Heart axis direction is moved to the second position only coordinated with the planetary gear.
9. torque transmission device according to claim 8, which is characterized in that the torque transmission device further includes：
Connector can drive the ring gear edge to be parallel to the central axial direction when the operation ring rotates and move；
The ring gear includes：
Teeth portion is taken turns, the internal tooth and the external tooth are formed；
Groove portion is taken turns, the race coordinated with the connector is formed in the outer rim of the ring gear；
The different axial positions in the ring gear are arranged in the external tooth and the race.
10. a kind of power tool includes the torque transmission device as described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406636.0A CN106337908B (en) | 2015-07-10 | 2015-07-10 | Torque transmission device and power tool with the torque transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406636.0A CN106337908B (en) | 2015-07-10 | 2015-07-10 | Torque transmission device and power tool with the torque transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106337908A CN106337908A (en) | 2017-01-18 |
| CN106337908B true CN106337908B (en) | 2018-08-07 |
Family
ID=57826713
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510406636.0A Expired - Fee Related CN106337908B (en) | 2015-07-10 | 2015-07-10 | Torque transmission device and power tool with the torque transmission device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106337908B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674835B2 (en) * | 1986-03-27 | 1994-09-21 | マテックス株式会社 | Casing mounting structure for planetary gear unit |
| US6733414B2 (en) * | 2001-01-12 | 2004-05-11 | Milwaukee Electric Tool Corporation | Gear assembly for a power tool |
| US7101300B2 (en) * | 2001-01-23 | 2006-09-05 | Black & Decker Inc. | Multispeed power tool transmission |
| DE10315138A1 (en) * | 2003-04-03 | 2004-10-21 | Atlas Copco Electric Tools Gmbh | Switchable gear of a hand-held machine tool |
| DE102010041172A1 (en) * | 2010-09-22 | 2012-03-22 | Robert Bosch Gmbh | Hand-held power tool with a gearbox |
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2015
- 2015-07-10 CN CN201510406636.0A patent/CN106337908B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
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| CN106337908A (en) | 2017-01-18 |
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