CN207975194U - Speed changer - Google Patents
Speed changer Download PDFInfo
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- CN207975194U CN207975194U CN201820140955.0U CN201820140955U CN207975194U CN 207975194 U CN207975194 U CN 207975194U CN 201820140955 U CN201820140955 U CN 201820140955U CN 207975194 U CN207975194 U CN 207975194U
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- speed changer
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- 210000000515 tooth Anatomy 0.000 claims description 85
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 239000002184 metal Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002271 resection Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
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Abstract
The utility model provides a kind of speed changer comprising the first rotating part, eccentric body, external gear, bearing, frame, multiple wheel carrier pins and the second rotating part.First rotating part is rotated centered on central axis with the first rotating speed.Eccentric body is rotated together with the first rotating part.External gear is configured at the radial outside of eccentric body.Bearing is between eccentric body and external gear.The cylindric component that frame is arranged in the radial outside of external gear and with central axis coaxial configures.Multiple wheel carrier pins are axially extended across multiple through holes, and the multiple through hole is set to external gear.Second rotating part is fixed on multiple wheel carrier pins.Internal tooth has the first notch in the end of radially inner side.
Description
Technical field
The technical program is related to speed changer.
Background technology
Conventionally, there is known eccentric oscillating-type (inscribed planetary) retarder.Eccentric rocking type reduction gear have internal gear and
It is configured at the external gear of the inside of internal gear.External gear is engaged with internal gear on one side, is swung on one side along the inner surface of internal gear.
Such eccentric rocking type reduction gear is small-sized and can obtain higher reduction ratio.About previous eccentric rocking type reduction gear,
Such as described in Japanese Unexamined Patent Publication 10-30687 bulletins.
In recent years, the die is cast with the small machines Man's Demands of people's cooperative work.Moreover, studying will combine it is above-mentioned
The actuator of eccentric rocking type reduction gear and motor is used for the joint of small scale robot.But to the requirement of this small scale robot
Smoothly work.Also, in order to not generate breakage in the case where being applied in external force, it is desirable that this small scale robot has external
The movable performance (reverse drive performance (backdrivability)) of power.
But in eccentric rocking type reduction gear, if generating unnecessary interference between external gear and internal gear, turn round
Square changes, and the rotary motion of retarder generates unevenness.As a result, it is difficult to making the joint of small scale robot smoothly work, instead
Also decline to driveability.
Also, in the structure of Japanese Unexamined Patent Publication 10-30687 bulletins, multiple internal tooths of internal gear are by that can rotate
Multiple tubular pins are constituted.Therefore, in the structure of Japanese Unexamined Patent Publication 10-30687 bulletins, even if making the tubular pin as internal tooth
A part be deformed into the interference being not likely to produce between external gear, also due to tubular pin itself rotates, therefore the position of the part
It sets also unstable.
Utility model content
The technical program be designed to provide a kind of top that can inhibit internal tooth in eccentric oscillating-type speed changer with
The structure of unnecessary interference between external gear.
The speed changer of the first illustrative technical solution of the application is eccentric oscillating-type speed changer comprising：First rotation
Transfer part is rotated centered on central axis with the first rotating speed；Eccentric body is rotated together with first rotating part, and
And it is different according to circumferential position from the central axis to the distance of the peripheral surface of the eccentric body；External gear, configuration
There are multiple external tooths in the radial outside of the eccentric body, and in peripheral part；Bearing is located at the eccentric body and the external tooth
Between wheel；Cylindric frame, is configured at the radial outside of the external gear, and match with the central axis coaxial
It sets；Multiple wheel carrier pins, the multiple wheel carrier pin are axially extended across multiple through holes, and the multiple through hole is set to institute
State external gear；And second rotating part, it is fixed on the multiple wheel carrier pin, the frame has multiple internal tooths, the multiple
Internal tooth from the inner peripheral portion of the frame to radially inner side extend, and with the outer tooth engagement, in the radially inner side of the internal tooth
End have the first notch.
According to the first illustrative technical solution of the application, there is the first notch in the end of the radially inner side of internal tooth.
Therefore, it is possible to inhibit the unnecessary interference between the top of internal tooth and external gear.Make thereby, it is possible to inhibit the variation of torque
Gear reduction unit swimmingly works.Also, frame itself is provided with internal tooth.Therefore, the position of the first notch of internal tooth will not
It changes.Thereby, it is possible to more inhibit the unnecessary interference between the top of internal tooth and external gear.
The second illustrative technical solution of the application is the speed changer described in the first technical solution, and first notch is in
Circular shape centered on the central axis.
The illustrative third technical solution of the application is the speed changer described in the first technical solution, and first notch is
The plane vertical with radial direction centered on the central axis.
The 4th illustrative technical solution of the application is the speed changer described in the first technical solution, and first notch is in
Than the convex form protruded to radially inner side with radial vertical plane centered on the central axis.
The 5th illustrative technical solution of the application is in first to fourth technical solution described in any technical solution
Speed changer, the internal tooth have a pair of of side as circumferential both ends of the surface, from end on observation when, the pair of side is in vacation
Think that the circular shape centered on line, the imaginary line are axially extended in the radial outside of first notch.
The 6th illustrative technical solution of the application is the speed changer described in the 5th technical solution, and the internal tooth also has
Joint face between first notch and the side, the song of the radius of curvature of the joint face than first notch
Rate radius is small, and bigger than the radius of curvature of the side.
The 7th illustrative technical solution of the application is in first to fourth technical solution described in any technical solution
Speed changer has the second notch in the end of the radial outside of the external tooth.
The 8th illustrative technical solution of the application is in first to fourth technical solution described in any technical solution
Speed changer, from end on observation when, the surface shape between the adjacent external tooth of the external gear is curtate epicycloid
(curtate epitrochoid)。
The 9th illustrative technical solution of the application is in first to fourth technical solution described in any technical solution
Speed changer, first rotating part are the input units rotated with the first rotating speed using the power obtained from motor, second rotation
Transfer part is the output section rotated with second rotating speed lower than first rotating speed.
By the detailed description of the preferred embodiments of the present invention below, with reference to attached drawing, it can be more clearly understood that this
Above-mentioned and other feature, element, step, the features and advantages of utility model.
Description of the drawings
Fig. 1 is the longitudinal section view of the retarder involved by the illustrative embodiment of the application.
Fig. 2 is the exploded perspective view of the retarder involved by the illustrative embodiment of the application.
Fig. 3 is the sectional elevation of the retarder involved by the illustrative embodiment of the application.
Fig. 4 is the partial cross sectional view of the frame involved by the illustrative embodiment of the application.
Fig. 5 is the partial cross sectional view of the frame involved by illustrative another variation of the application.
Specific implementation mode
Hereinafter, being illustrated to the illustrative embodiment of the technical program with reference to attached drawing.In addition, in this application,
The direction of centerline axis parallel with speed changer is referred to as " axial direction ", " radial direction " will be referred to as with the direction of central axis upright, it will
It is referred to as " circumferential direction " along the direction of the circular arc centered on central axis.Wherein, above-mentioned " parallel direction " also includes substantially parallel
Direction.Also, above-mentioned " vertical direction " also includes generally perpendicular direction.
<1. the overall structure of retarder>
Fig. 1 is the longitudinal section view of the retarder 1 of an embodiment of the speed changer of the technical program.Fig. 2 is retarder 1
Exploded perspective view.Fig. 3 is the sectional elevation for the retarder 1 observed from the positions A-A in Fig. 1.In addition, in figure 3, in order to keep away
Exempt from the multifarious of attached drawing, hacures are omitted.
The retarder 1 is that the rotary motion of the first rotating speed (input speed) is converted to second rotating speed lower than the first rotating speed
Eccentric oscillating-type (inscribed planetary) gear reduction unit of the rotary motion of (output rotating speed).Retarder 1 is for example used in and people
The joint of the small scale robots such as the service humanoid robot of cooperative work.But it is also possible to which the retarder with equivalent constructions is used
In other purposes such as large scale industry robot, lathe, X-Y table, material cutter device, pipeline, turntable, rolls.
As shown in Figure 1, the retarder 1 of present embodiment includes the external gear of eccentric body 20, two of the first rotating part 10, two
30, frame 40,50 and second rotating part 60 of multiple wheel carrier pins.
First rotating part 10 is the columned component extended along central axis 9.As outlined in Fig. 1, the first rotation
Transfer part 10 is direct or is connect with the motor as driving source by other power transfer mechanisms.If drive motor, the first rotation
Transfer part 10 is rotated centered on central axis 9 with the first rotating speed using from the power that motor supplies.That is, in present embodiment
In, the first rotating part 10 becomes input unit.
Eccentric body 20 is the component rotated together with the first rotating part 10.Two eccentric bodies 20 are individually fixed in the first rotation
The peripheral surface in portion 10.But the first rotating part 10 and two eccentric bodies 20 can also be single part.Two eccentric bodies 20 are distinguished
With the cylindric peripheral surface centered on eccentric axis 91, the eccentric axis 91 at the position for deviateing central axis 9 with
Central axis 9 extends parallel to.Thus, from central axis 9 to the distance of the peripheral surface of eccentric body 20 according to circumferential position and
It is different.When being rotated centered on the first rotating part 10 is by central axis 9, during the positions of two eccentric bodies 20 is with central axis 9
The heart rotates.At this point, the eccentric axis 91 of each eccentric body 20 is also rotated centered on central axis 9.
In the present embodiment, eccentric body 20, the eccentric shaft of the position of eccentric axis 91 and another eccentric body 20
The position of line 91 is separated from each other 180 ° relative to central axis 9.So, the whole position of centre of gravity of two eccentric bodies 20 is always
On central axis 9.Thus, it is possible to which center of gravity is inhibited to be shaken because of the rotation of eccentric body 20.
Two external gears 30 are respectively arranged at the radial outside of eccentric body 20.Exist between eccentric body 20 and external gear 30
There is first bearing 71.First bearing 71 is for example using ball bearing.External gear 30 is by the bearing of first bearing 71 can be with eccentric shaft
It is rotated centered on line 91.As shown in figure 3, the peripheral part in external gear 30 is provided with multiple external tooths 31.Each external tooth 31 is outside to diameter
Side protrudes.Also, the outer inter-tooth slots 32 being recessed to radially inner side are provided between adjacent external tooth 31.External tooth 31 and outer between cog
The circumferentially alternating arrangement centered on eccentric axis 91 of slot 32.
Also, as shown in Figure 1 and Figure 3, two external gears 30 are respectively provided with multiple (being in the example in fig. 3 ten) perforation
Hole 33.Each through hole 33 penetrates through external gear 30 in an axial direction.Multiple through holes 33 are centered on eccentric axis 91 and between circumferentially waiting
Every arrangement.
Frame 40 is the cylindric component for the radial outside for surrounding two external gears 30.Frame 40 is same with central axis 9
Configure to axis.As shown in figure 3, frame 40 has multiple internal tooths 41.Multiple internal tooths 41 are respectively from the inner peripheral portion of frame 40 to radial direction
Inside protrudes.Also, the interior inter-tooth slots 42 being recessed to radial outside are provided between adjacent internal tooth 41.Internal tooth 41 and internal tooth
Between the circumferentially alternating arrangement centered on central axis 9 of slot 42.
A part for multiple external tooths 31 of external gear 30 and a part for multiple internal tooths 41 of frame 40 are intermeshed.Specifically
Say that a part of external tooth 31 of external gear 30 is embedded into a part for frame 40 in inter-tooth slots 42 in ground.Also, one of frame 40
Internal tooth 41 is divided to be embedded into a part of outer inter-tooth slots 32 of external gear 30.
The when of rotation centered on the first rotating part 10 is by central axis 9, external gear 30 and eccentric axis 91 are together in
Mandrel line 9 revolves round the sun.Also, external gear 30 is engaged by rotation by the external tooth 31 of external gear 30 with the internal tooth 41 of frame 40.Here,
The quantity of internal tooth 41 possessed by frame 40 is more than the quantity of external tooth 31 possessed by external gear 30.Therefore, external gear 30 is per public
It turns around, the position of the external tooth 31 engaged with the internal tooth 41 of the same position of frame 40 can deviate from.As a result, external gear 30 with than
The second low rotating speed of first rotating speed is to the direction rotation opposite with the direction of rotation of the first rotating part 10.Thus, external gear 30
The position of through hole 33 is also rotated with the second rotating speed.When retarder 1 works, two external gears 30 are respectively combined such
The rotary motion of revolution and rotation.
If the quantity of external tooth 31 possessed by external gear 30 is set as N, and by the quantity of internal tooth 41 possessed by frame 40
It is set as M, then the reduction ratio P of retarder 1 becomes P=(the first rotating speed)/(the second rotating speed)=N/ (M-N).In the example in fig. 3, by
Reduction ratio in N=29, M=30, therefore in this is P=29.That is, the second rotating speed becomes 1/29 rotating speed of the first rotating speed.
Wherein, the quantity N of the external tooth 31 and quantity M of internal tooth 41 can also be other values.
In the present embodiment, the part as single part, that is, frame 40 is provided with multiple internal tooths 41.Therefore, nothing
Internal gear with multiple internal tooths 41 need to be set seperatedly with frame 40.It is easy that retarder 1 is made to minimize as a result,.
Multiple wheel carrier pins 50 are the columned components for penetrating through two external gears 30 and axially extending.Multiple wheel carrier pins 50
It is in circular row centered on central axis 9.Each wheel carrier pin 50 is inserted into the through hole 33 of two external gears 30.Such as figure
Shown in 3, there are gaps between the circular face and the peripheral surface of wheel carrier pin 50 for constituting the through hole 33 of external gear 30.Two
When a external gear 30 is with the second rotating speed rotation after deceleration, multiple wheel carrier pins 50 are due to being pressed by external gear 30 and also with central shaft
It is rotated with the second rotating speed centered on line 9.
Second rotating part 60 has circular front wheel carrier component 61 and circular rear wheel carrier component 62.It takes turns in front
Frame component 61 is configured at than two external gears 30 and leans at the position of axial side.In the first rotating part 10 and front wheel carrier component 61
Between there are second bearings 72.Also, there are 3rd bearings 73 between front wheel carrier component 61 and frame 40.Square wheel afterwards
Frame component 62 is configured at than two external gears 30 and leans at the position of the axial other side.In the first rotating part 10 and rear wheel carrier component
There are fourth bearings 74 between 62.Also, there are 5th bearings 75 between rear wheel carrier component 62 and frame 40.Second
Bearing 72 and fourth bearing 74 are for example using ball bearing.3rd bearing 73 and 5th bearing 75 are such as using by polyformaldehyde
The sliding bearing that resin is constituted.
Front wheel carrier component 61 is fixed in an axial end for each wheel carrier pin 50.Each wheel carrier pin 50 it is axial another
Rear wheel carrier component 62 is fixed in end.Therefore, it is rotated with the second rotating speed centered on multiple wheel carrier pins 50 are by central axis 9
When, front wheel carrier component 61 and rear wheel carrier component 62 are also rotated centered on central axis 9 with the second rotating speed.In addition,
As the method for wheel carrier component 61 and rear wheel carrier component 62 in front of being fixed on wheel carrier pin 50, such as use method of press-fitting.
Second rotating part 60 is connect directly or by other power transfer mechanisms with as the component of driven object.That is,
In the present embodiment, the second rotating part 60 becomes output section.
<2. the shape about internal tooth>
Fig. 4 is the partial cross sectional view of frame 40.Hereinafter, being illustrated to the detail shape of internal tooth 41 with reference to Fig. 4.
As shown in figure 4, multiple internal tooths 41 are protruded in the inner circumferential of frame 40 towards radially inner side respectively.Each internal tooth 41 has the
One notch 411.First notch 411 is located at the end of the radially inner side of internal tooth 41, is cut off to radial outside.Assuming that being not present
Such first notch 411, then the top of internal tooth 41 contacted with external gear 30, occasionally result in external gear 30 rotary motion generate
It is uneven.But such as present embodiment, if the first notch of end set 411 of the radially inner side in internal tooth 41, can inhibit in
Unnecessary interference between tooth 41 and external gear 30.External gear 30 is set swimmingly to revolve thereby, it is possible to inhibit the variation of torque
Turn.As a result, the positive power that can swimmingly carry out retarder 1 transmits, and also improve the reverse drive of retarder 1
Performance.
And, it is assumed that in the case that frame 40 and the internal tooth 41 with the first notch 411 are set as seperated component, it is difficult to accurate
Really position position of first notch 411 relative to frame 40.Especially in the case where the pin that will be rotated is as internal tooth 41,
Since the position of the first notch 411 is also rotated together with pin, the position of the first notch 411 will not stablize.But subtract at this
In fast device 1, internal tooth 41 itself is provided in frame 40.Therefore, the position of the first notch 411 of internal tooth 41 will not change.As a result,
The interference between the top of internal tooth 41 and external gear 30 can more be inhibited.
First notch 411 of present embodiment is the circular shape centered on central axis 9.When manufacturing frame 40,
Such as by making lathe form the first notch 411 in the radially inner side rotation of frame 40.Thereby, it is possible in multiple internal tooths 41
Top disposably forms the first notch 411.As a result, the frame 40 for including the first notch 411 can be manufactured promptly.And
And by the way that the first notch 411 is set as the concavity being recessed to radial outside, it can more inhibit top and the external gear of internal tooth 41
Interference between 30.
Also, as shown in figure 4, each internal tooth 41 has a pair of of side 412 as circumferential both ends of the surface.From end on observation
When, a pair of of side 412 is in the circular shape centered on imaginary line 80, radial outside of the imaginary line 80 in the first notch 411
It axially extends.In Fig. 4, imaginary circle 81 made of extending a pair of of side 412 is indicated with double dot dash line.First notch 411
It removes and forms to the inside of the imaginary circle 81, i.e. from imaginary circle 81 to 80 lateral incision of imaginary line.
Also, it is indicated as expanded in Fig. 4, the internal tooth 41 of present embodiment has a pair of of joint face 413.Each joint face 413
Between the first notch 411 and side 412.The radius of curvature r of joint face 413 is smaller than the radius of curvature R of the first notch 411,
And it is bigger than the radius of curvature D/2 of side 412.If in this way, between the first notch 411 and side 412 be arranged joint face 413,
It can then inhibit to generate sharp angle between the first notch 411 and joint face 413.That is, the first notch 411 and side 412 are logical
Joint face 413 is crossed to connect smoothly.Thereby, it is possible to more inhibit the unnecessary interference between external gear 30 and internal tooth 41.And
And, additionally it is possible to reduce impact when external gear 30 is contacted with internal tooth 41.
<3. the shape about external tooth>
As shown in figure 3, in the present embodiment, the second notch 311 is also equipped in multiple external tooths 31 of external gear 30.The
Two notches 311 are located at the outer end of external tooth 31, are formed to the medial resection of external gear 30.Assuming that such second notch is not present
311, then the outer end of external tooth 31 contacted with frame 40, occasionally result in external gear 30 rotary motion generate it is uneven.But such as this
Embodiment, if external tooth 31 outer end be arranged the second notch 311, can inhibit between external tooth 31 and frame 40 need not
The interference wanted.External gear 30 is set swimmingly to rotate thereby, it is possible to inhibit the variation of torque.
Second notch 311 of present embodiment is the circular shape centered on eccentric axis 91.In manufacture external gear 30
When, such as form the second notch 311 by cutting the outer end of external tooth 31 while so that external gear 30 is rotated.As a result, can
It is enough disposably to form the second notch 311 in the outer end of multiple external tooths 31.As a result, can promptly manufacture comprising second
External gear 30 including notch 311.
But the shape of the second notch 311 can be plane, can also slightly outwards gear 30 inside recess.
External gear 30 has outer inter-tooth slots 32 between adjacent external tooth 31.In the present embodiment, from end on observation when,
The surface shape of the outer inter-tooth slots 32 is curtate epicycloid.According to curtate epicycloid, outer inter-tooth slots 32 and frame can either be inhibited
Radially contacting between the internal tooth 41 of frame 40, and external tooth 31 can be made to be closely contacted in the circumferential with internal tooth 41.Thereby, it is possible to
Inhibit radial unnecessary power to act between external gear 30 and frame 40, carries out circumferential power well and transmit.
But the shape of outer inter-tooth slots 32 can also be other curve forms such as arc-shaped.
<4. variation>
More than, the illustrative embodiment of the technical program is illustrated, but the technical program does not limit
In the above embodiment.Hereinafter, being illustrated to various variations centered on the difference with the above embodiment.
In the above-described embodiment, the shape of the first notch 411 is in the circular shape centered on central axis 9.But
The shape of first notch 411 can also be the plane vertical with radial direction centered on central axis 9.Also, as shown in figure 5,
The shape of first notch 411 can also be than being protruded to radially inner side with radial vertical plane centered on central axis 9
Convex form.As long as even if in this case the first notch 411 if the imaginary circle 81 to made of extending a pair of of side 412
Medial resection forms.So, compared with the case where top of internal tooth 41 is in along the shape of imaginary circle 81, can inhibit
Unnecessary interference between internal tooth 41 and external gear 30.
If also, as shown in figure 5, the first notch 411 is set as convex form, can inhibit the two of the first notch 411
A side generates sharp angle.
The material of each component of retarder 1 is constituted for example using metal.But the material of each component can also replace metal
And use resin.Also, metal can also be used in the part that should pay attention to intensity in each component for constituting retarder 1, and
The resin lighter than metal is used in other parts.
Also, in the above-described embodiment, the quantity of external gear 30 possessed by retarder 1 is two.But external gear
30 quantity can be one, can also be three or more.
Also, in the above-described embodiment, the retarder 1 of an example as speed changer is illustrated.But
Equivalent constructions can also be used as speed increaser.In this case, as long as regarding the second rotating part 60 as input unit, by the first rotation
Portion 10 is used as output section.As long as that is, to the second rotating part 60 input speedup before the second rotating speed rotary motion, and from
First rotating part 10 exports the rotary motion of the first rotating speed after speedup.
Also, the shape of the detail section about speed changer, can also be different from each shape shown in the drawings of the application.
Also, can also by each element occurred in the above embodiment and variation in the range of not conflicting suitably group
It closes.
The technical program can be used in speed changer.
Claims (9)
1. a kind of speed changer is eccentric oscillating-type speed changer, including：
First rotating part is rotated centered on central axis with the first rotating speed；
Eccentric body is rotated together with first rotating part, and from the central axis to the peripheral surface of the eccentric body
Distance it is different according to circumferential position；
External gear is configured at the radial outside of the eccentric body, and has multiple external tooths in the peripheral part of the external gear；
Bearing, between the eccentric body and the external gear；
Cylindric frame, is configured at the radial outside of the external gear, and configure with the central axis coaxial；
Multiple wheel carrier pins, the multiple wheel carrier pin are axially extended across multiple through holes, and the multiple through hole is set to
The external gear；And
Second rotating part is fixed on the multiple wheel carrier pin,
The speed changer is characterized in that,
There are the frame multiple internal tooths, the multiple internal tooth to extend from the inner peripheral portion of the frame to radially inner side, and with
The outer tooth engagement,
There is the first notch in the end of the radially inner side of the internal tooth.
2. speed changer according to claim 1, which is characterized in that
First notch is in the circular shape centered on the central axis.
3. speed changer according to claim 1, which is characterized in that
First notch is the plane vertical with radial direction centered on the central axis.
4. speed changer according to claim 1, which is characterized in that
First notch is convex in being protruded to radially inner side than the plane vertical with radial direction centered on the central axis
Shape.
5. speed changer as claimed in any of claims 1 to 4, which is characterized in that
The internal tooth has a pair of of side as circumferential both ends of the surface,
From end on observation when, the pair of side is in circular shape centered on imaginary line, and the imaginary line is described first
The radial outside of notch axially extends.
6. speed changer according to claim 5, which is characterized in that
The internal tooth also has the joint face between first notch and the side,
The radius of curvature of the joint face is smaller than the radius of curvature of first notch, and than the radius of curvature of the side
Greatly.
7. speed changer as claimed in any of claims 1 to 4, which is characterized in that
There is the second notch in the end of the radial outside of the external tooth.
8. speed changer as claimed in any of claims 1 to 4, which is characterized in that
From end on observation when, the surface shape between the adjacent external tooth of the external gear is curtate epicycloid.
9. speed changer as claimed in any of claims 1 to 4, which is characterized in that
First rotating part be using the power that is obtained from motor and with the input unit that the first rotating speed rotates,
Second rotating part is the output section rotated with second rotating speed lower than first rotating speed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017013141A JP2018119649A (en) | 2017-01-27 | 2017-01-27 | Speed change gear |
| JP2017-013141 | 2017-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207975194U true CN207975194U (en) | 2018-10-16 |
Family
ID=63045055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820140955.0U Active CN207975194U (en) | 2017-01-27 | 2018-01-26 | Speed changer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2018119649A (en) |
| CN (1) | CN207975194U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102602102B1 (en) * | 2022-12-14 | 2023-11-14 | 하이젠알앤엠 주식회사 | A Eccentric reducer and gear manufacturing method of the eccentric reducer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60227042A (en) * | 1983-12-26 | 1985-11-12 | Nippon Air Brake Co Ltd | Speed reduction gear |
| JPS61153040A (en) * | 1984-12-26 | 1986-07-11 | Nippon Air Brake Co Ltd | Speed reduction gear |
| JPH0786379B2 (en) * | 1990-06-05 | 1995-09-20 | 伊東電機株式会社 | Inscribed planetary gear reducer |
| JP3444643B2 (en) * | 1994-03-08 | 2003-09-08 | 住友重機械工業株式会社 | Internally meshing planetary gear structure and method of manufacturing the gear |
| JPH1030687A (en) * | 1996-07-15 | 1998-02-03 | Shimpo Ind Co Ltd | Planetary type speed increasing/decreasing gear |
| JP4554183B2 (en) * | 2003-10-31 | 2010-09-29 | 株式会社キッツ | Valve actuator |
| JP6217577B2 (en) * | 2014-09-24 | 2017-10-25 | 株式会社デンソー | Inscribed mesh planetary gear mechanism |
-
2017
- 2017-01-27 JP JP2017013141A patent/JP2018119649A/en not_active Withdrawn
-
2018
- 2018-01-26 CN CN201820140955.0U patent/CN207975194U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018119649A (en) | 2018-08-02 |
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Effective date of registration: 20221103 Address after: Kyoto Japan Patentee after: NIDEC-SHIMPO Corp. Address before: Kyoto City, Kyoto Prefecture, Japan Patentee before: NIDEC Corp. Patentee before: NIDEC-SHIMPO Corp. |