CN107084229A - Eccentrically swinging gear device - Google Patents
Eccentrically swinging gear device Download PDFInfo
- Publication number
- CN107084229A CN107084229A CN201710015909.8A CN201710015909A CN107084229A CN 107084229 A CN107084229 A CN 107084229A CN 201710015909 A CN201710015909 A CN 201710015909A CN 107084229 A CN107084229 A CN 107084229A
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- China
- Prior art keywords
- bent axle
- inboard bearing
- bearing
- axle
- inboard
- 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.)
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
-
- 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
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members 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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/323—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear comprising eccentric crankshafts driving or driven by a gearing
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- 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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Retarders (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention provides a kind of Eccentrically swinging gear device, and it can further increase the carrying capacity of the bearing of supporting bent axle.The Eccentrically swinging gear device (10) of the present invention possesses：Wobble gear (12)；Bent axle (20), makes the wobble gear swing rotary；And vibrating part (30), it is arranged opposite with the bent axle in the axial direction, wherein, bent axle has hollow part (21), vibrating part has the axle portion part (31) for being inserted into hollow part, inboard bearing (50,60) is configured between the inner circumferential (21A) of bent axle and the periphery (31A) of axle portion part, inboard bearing axially protrudes L (22 50), L (23 60) from the axial end (22,23) of bent axle.
Description
The application advocates the priority based on 2 months 2016 Japanese patent applications filed in 12 days the 2016-024346th.
The full content of the Japanese publication is by reference to being applied in this specification.
Technical field
The present invention relates to a kind of Eccentrically swinging gear device.
Background technology
For example, there is a kind of Eccentrically swinging gear device disclosed in patent document 1.The geared system possess wobble gear and
Make the bent axle of the wobble gear swing rotary.Also, it is also equipped with vibrating part arranged opposite with bent axle in the axial direction, and from
Rotating against between wobble gear and non-wobble gear side obtained from the swing that vibrating part output passes through wobble gear.
Bent axle has hollow part, and the axle portion part protruded from vibrating part is inserted in the hollow part.Bent axle is configured in the song
Bearing supporting between the inner circumferential of axle and the periphery of axle portion part.
Patent document 1：No. 5122450 publications of Japanese Patent No.
There are the following problems in this Eccentrically swinging gear device：It is difficult to the branch for substantially ensuring that the bearing of supporting bent axle
Hold capacity.
The content of the invention
The present invention completes to solve this problem, and its problem is that supporting can further be increased by providing one kind
The Eccentrically swinging gear device of the carrying capacity of the bearing of bent axle.
The present invention solves above-mentioned problem by the way that Eccentrically swinging gear device is set into following structure, i.e. a kind of eccentric
Oscillating-type geared system, it possesses：Wobble gear；Bent axle, makes the wobble gear swing rotary；And vibrating part, in the axial direction
It is arranged opposite with the bent axle, wherein, the bent axle has hollow part, and the vibrating part has the axle for being inserted into the hollow part
Part, inboard bearing is configured between the inner circumferential of the bent axle and the periphery of the axle portion part, and the inboard bearing is from the song
The axial end of axle is axially protruded.
In the present invention, the inner shafts between the periphery of the inner circumferential of bent axle and axle portion part will be configured to support bent axle
Hold and be arranged to axially protrude from the axial end of bent axle.
Thereby, it is possible to the carrying capacity of the further bearing of increase supporting bent axle.
In accordance with the invention it is possible to which further increase supports the carrying capacity of the bearing of bent axle.
Brief description of the drawings
Fig. 1 is the section view for the structure for representing the Eccentrically swinging gear device involved by one of embodiments of the present invention
Figure.
Fig. 2 is Fig. 1 enlarged view of the main part.
Fig. 3 be represent the Eccentrically swinging gear device involved by Fig. 1 variation structure it is main equivalent to Fig. 2
Magnified partial view.
Fig. 4 is the structure for representing the Eccentrically swinging gear device involved by the example of another embodiment of the present invention
Sectional view.
Fig. 5 is Fig. 4 enlarged view of the main part.
In figure：10- geared systems, 12- external gears (wobble gear), 20- bent axles, the inner circumferential of 21A- bent axles, 21- is hollow
Portion, 22,23- axial ends, 30- wheel carriers (vibrating part), 31- axle portion parts, the periphery of 31A- axle portion parts, the inner shafts of 50- the 1st
Hold, the inboard bearings of 60- the 2nd.
Embodiment
Hereinafter, one of embodiments of the present invention is described in detail based on accompanying drawing.
Fig. 1 is the section view for the structure for representing the Eccentrically swinging gear device involved by one of embodiments of the present invention
Figure, Fig. 2 is Fig. 1 enlarged view of the main part.
For outline, the geared system 10 possesses two external gears (wobble gear) 12 (12A, 12B) and makes the external gear
The bent axle 20 of 12 swing rotaries.Geared system 10 possesses wheel carrier (vibrating part) arranged opposite with the bent axle 20 in the axial direction
External gear 12 and internal gear 40 (non-wobble gear) obtained from 30, and the swing for passing through external gear 12 from the wheel carrier 30 output
Between rotate against.
Bent axle 20 has hollow part 21, and wheel carrier 30 has the axle portion part 31 for being inserted into the hollow part 21.Also, in bent axle 20
(hollow part 21) inner circumferential 21A and axle portion part 31 periphery 31A between be configured with inboard bearing (the 1st inboard bearing 50 and the 2nd
Inboard bearing 60).1st inboard bearing 50 and the 2nd inboard bearing 60 are axially protruded from the axial end 22,23 of bent axle 20.
It is described in detail below.
Geared system 10 has parallel axes retarding stage (prime retarding stage) G1 and eccentric swing retarding stage (rear class retarding stage)
G2 this double reduction levels.Rotation of the geared system 10 by retarding stage G1, G2 of the two-stage to the motor drive shaft 9A of motor 9 subtracts
Speed, and wheel carrier 30 is rotated relative to the shell 70 (cover body 71) for being provided with motor 9.
Geared system 10 possesses input shaft 13, and the input shaft 13 doubles as the motor drive shaft 9A of motor 9.It is assembled with input shaft 13
Little gear 11.Little gear 11 is engaged with being arranged at the gear 14 of the end of bent axle 20.Parallel axes is constituted by little gear 11 and gear 14
Retarding stage G1.Gear 14 is equivalent to " power transmission member " that power is transmitted to bent axle 20.
As shown in Fig. 2 bent axle 20 is in the side (with vibrating part opposite side) opposite with wheel carrier of the bent axle 20
Axial end 23 has screw 32.Screw 32 is used for the installation of gear 14.Gear 14 has the lock for the periphery for being embedded in bent axle 20 outside
Buckle 14A, be formed in the mode parallel with axle latch part 14A radially inner side bolt hole 14B.Gear 14 by through
Bolt hole 14B and the binder bolt 15 that is screwed into screw 32 are installed on a side end opposite with wheel carrier for bent axle 20.Bent axle
20 screw 32 is formed with multiple (eight are formed with the example) in a circumferential direction.
Bent axle 20 is provided integrally with two eccentric bodies 24 (24A, 24B) for swinging external gear 12 in its periphery.Partially
Amounts of the axle center C24 of heart body 24 from the axle center C20 bias e of bent axle 20.The eccentric phase difference of two eccentric bodies 24 for 180 degree (to
Direction away from each other is eccentric).
In this example embodiment, eccentric body 24 is formed as one with the main body of bent axle 20 by single part.But, eccentric body 24
Can be the eccentric body being made up of the single part different from the main body of bent axle 20 such as via key and with the main body one of bent axle 20
The structure of body.On the structure near bent axle 20, it will be described later in detail.
In the periphery of the eccentric body 24 of bent axle 20, pendulum is rotatably assembled with via eccentric body bearing 19 (19A, 19B)
Moving gear is external gear 12 (12A, 12B).Eccentric body bearing 19 has rolling element (roller) 19A1,19B1 and supports the rolling
Body 19A1,19B1 retainer 19A2,19B2.Retainer 19A2,19B2 are via pad 55A, 55B by wheel carrier side block circle the (the 1st
Positioning element) 56A and the opposite side block circle of wheel carrier (the 2nd positioning element) 56B clamping.Thus, retainer 19A2,19B2 be in the axial direction
Rolling element 19A1,19B1 are positioned.
Return to Fig. 1, external gear 12 and the internal messing of internal gear 40.Internal gear 40 is by the internal gear master integrated with shell 70
Body 41 and rotatably it is assembled in the columned pin member 42 of the internal tooth wheel body 41 and constitutes.Pin member 42 constitutes internal gear
40 internal tooth.The quantity (number of pin member 42) of the internal tooth of internal gear 40 is slightly more than quantity (example of the external tooth of external gear 12
It is only many one in son).
In addition, in this manual, the part of motor 9 and part integration with being provided with the motor 9 will be installed
Part is referred to as " shell 70 ".Specifically, the main cover body 71 by being provided with motor 9 of the shell 70 of the geared system 10, with
The rear side shell body 72 and the rear side shell body 72 that the cover body 71 links link and as the shell master of the internal tooth wheel body 41
Body 73, the front side shell body 74 linked with the housing main body 73 are constituted.
Crossed roller bearing 59 is configured between wheel carrier 30 in shell 70 (front side shell body 74).That is, 30 groups of wheel carrier
Dressing up can be rotated by a crossed roller bearing 59 relative to shell 70, and from the side of shell 70 by axially and radially this
Reaction force in both direction.
External gear 12 (12A, 12B) respectively have axially through through hole 12A1,12B1, it is integrated with wheel carrier 30
Domestic 17 through in the through hole 12A1,12B1.In domestic 17 periphery, rotatably outer be embedded with slides promoting member 18.
Promoting member 18 is slided to abut with through hole 12A1,12B1 a part.But, through hole 12A1,12B1's is interior
Footpath is more than the external diameter for sliding promoting member 18, through hole 12A1,12B1 and slide ensure to have between promoting member 18 equivalent to
Twice of gap of the eccentric amount e of eccentric body 24.Used as the object Part (omitting diagram) of driven member and be arranged at wheel
The screw 37 of frame 30 and be fixed on the wheel carrier 30.
Here, bent axle 20 and its supporting structure are described in detail.
Bent axle 20 have in radially center axially through hollow part 21, bent axle 20 is configured to its entirety and is cylindrical in shape.Separately
On the one hand, wheel carrier 30 is provided integrally with the axle portion part 31 for the hollow part 21 for being inserted into the bent axle 20.In addition, in this example embodiment, axle
Part 31 is formed as one with wheel carrier 30 by single part, however, it can be by the single part structure different from wheel carrier 30
Into axle portion part structure integrated with wheel carrier 30 such as by press-in.
The 1st inboard bearing is configured between (hollow part 21) the inner circumferential 21A of bent axle 20 and the periphery 31A of axle portion part 31
50 and the 2nd inboard bearing 60.
Here, so-called " inboard bearing " refers between the inner circumferential for being configured at bent axle and the periphery of axle portion part and from the axle of bent axle
The bearing axially protruded to end face.
In the configuration example, inboard bearing possesses the 1st of the side of wheel carrier 30 (vibrating part side) end for being configured at bent axle 20
Inboard bearing 50 and be configured at bent axle 20 a side end opposite with wheel carrier the 2nd inboard bearing 60.
1st inboard bearing 50 is made up of taper roll bearing, and it has the 1st rolling element being made up of coniform roller
51st, the 1st inner ring 52 and the 1st outer ring 53.1st inner ring 52 has claw 52a, 52b that the 1st rolling element 51 of limitation is axially moveable.
2nd inboard bearing 60 is also made up of taper roll bearing, and it has the 2nd rolling element being made up of coniform roller
61st, the 2nd inner ring 62 and the 2nd outer ring 63.Contact angle θ 1, the θ 2 of 1st inboard bearing 50 and the 2nd inboard bearing 60 be in this example embodiment
17 degree (non-zero), and assembled in back-to-back mode.
If being conceived to the side of the 1st inboard bearing 50, axial end 22 of the 1st inboard bearing 50 from the side of wheel carrier 30 of bent axle 20
Axially protrude L (22-50).Specifically, a part for the 1st rolling element 51 is axially protruded from the axial end 22 of bent axle 20
L (22-51), the prominent maximum of a part of the 1st inner ring 52 is L (22-52)=L (22-50).1st outer ring of the 1st inboard bearing 50
53 are contained in the 1st outer ring mounting portion 29 of bent axle 20, and it is not protruded from the axial end 22 of bent axle 20.
On the other hand, axial gap 78 is provided between bent axle 20 and wheel carrier 30.The axial width of axial gap 78 is
W78.The axial gap 78 is the gap specially ensured for the path as lubricant.It is therefore preferable that the axial gap 78
Width W78 ensure sufficiently large, such as more than the 1/2 of the maximum gauge d51m of the 1st rolling element 51 of the 1st inboard bearing 50.
In the example, the width W78 of axial gap 78 is set as roughly the same with the maximum gauge d51m of the 1st rolling element 51.
When from radially, the overlapping L (22-52) of 78 and the 1st inboard bearing of the axial gap 50=L (22-50).
When specifically, from radially, the 1st rolling element 51 and the overlapping L (22- of axial gap 78 of the 1st inboard bearing 50
51) when, and from radially, the 1st inner ring 52 and the overlapping L (22-52) of axial gap 78.
In addition, when from radially, the 1st outer ring 53 of the 1st inboard bearing 50 and axial gap 78 are simultaneously underlapped.Therefore,
Lubricant in axial gap 78 will not be stopped by the 1st outer ring 53 of the 1st inboard bearing 50, can swimmingly reach the 1st inner side
Between 1st outer ring 53 of bearing 50 and the 1st rolling element 51 and the 1st inboard bearing 50 the 1st inner ring 52 and the 1st rolling element 51 it
Between.
Alternatively, it is also possible to form the inner circumferential side and the outer circumferential side that extend radially through bent axle 20 in the axial middle position of bent axle 20
Through hole.Thereby, it is possible to make the lubricant near the lubricant and eccentric body bearing 19 in axial gap 78 via bent axle 20
Hollow part 21 and connect, so as to more well maintain lubricant circulation (in the case of lubricating grease, for example can
Diffusion during injection is maintained more well).
Then, if being conceived to the side of the 2nd inboard bearing 60, the geared system 10 is in the side opposite with wheel carrier of bent axle 20
End possesses the 2nd inboard bearing 60.2nd inboard bearing 60 is configured at (hollow part 21) the inner circumferential 21A and axle portion part of bent axle 20
Between 31 periphery 31A, and axial end 23 from the side opposite with wheel carrier of bent axle 20 axially protrudes L (23-60).
(the power biography of gear 14 that power is transmitted to the bent axle 20 is installed in a side end opposite with wheel carrier for bent axle 20
Pass part).When from radially, overlapping L (14-60) A of 14 and the 2nd inboard bearing of gear 60.
More specifically, in this geared system 10, the axial end of the 2nd outer ring 63 of the 2nd inboard bearing 60 from bent axle 20
Face 23 protrudes L (23-63B), and across simultaneously being connected to the 2nd outer ring mounting portion 27 of bent axle 20 and the through hole 14C of gear 14
Inner circumferential.That is, the non-projecting portion 63A not from the protrusion of bent axle 20 of the 2nd outer ring 63 is by the 2nd outer ring mounting portion 27 of bent axle 20
Hold, and the protuberance 63B protruded from the axial end portion 23 of bent axle 20 of the 2nd outer ring 63 be then fixed in bent axle 20 (with song
The integration of axle 20) the through hole 14C of gear 14 inner circumferential supporting.As a result, the 2nd outer ring 63 is configured to whole on its axial direction
Region can receive supporting reaction force from bent axle 20 or (integrated with bent axle 20) gear 14.
If changing view, the structure is considered as follows：Gear 14 is actual prominent with cantilever position from the 2nd inboard bearing 60
Axial length L (14-60) B gone out is shorter.That is, axial length L (14-60) B ratios that gear 14 is protruded from the 2nd inboard bearing 60
Axial length L (14-23) small axial length L equivalent to protuberance 63B that gear 14 is protruded from the axial end 23 of bent axle 20
The amount of (23-63B).
On the other hand, axle portion part 31 exceedes the axial end 23 of bent axle 20 and extends up to gear 14 (power transmission member)
Radially inner side.Therefore, the 2nd inner ring 62 of the 2nd inboard bearing 60 is not protruded from axle portion part 31.In other words, from radially
When, the part in the axial direction of the 2nd rolling element 61 of the 2nd inboard bearing 60, the 2nd inner ring 62 and all parts of the 2nd outer ring 63
Maximum overlapping with gear 14 and overlapping with gear 14 is L (14-60) A.
Moreover, as described above, in this geared system 10, being configured between the eccentric body 24 and external gear 12 of bent axle 20
Eccentric body bearing 19.But, when from radially, the 1st inboard bearing 50 and the 2nd inboard bearing 60 not with eccentric body bearing 19
(19A, 19B) is overlapping.In addition, eccentric body bearing 19 mentioned here is (overlapping with the 1st inboard bearing 50 and the 2nd inboard bearing 60
Eccentric body bearing 19) refer to rolling element 19A1,19B1 part, and the part not comprising retainer 19A2,19B2.
In the geared system 10, inputted by the gear 14 (power transmission member) for being installed on the bent axle 20 to bent axle 20
Power.Axial end 23 of the bent axle 20 in the side opposite with wheel carrier of the bent axle 20 has the screw for being used for installing the gear 14
32.Also, the eccentric body bearing 19B of the side opposite with wheel carrier is via pad 55B and (the 2nd determines by the opposite side block circle of wheel carrier
Position part) 56B and be positioned at bent axle 20 in the axial direction.
Also, in the geared system 10, when from radially, the eccentric body bearing 19B opposite side block circle 56B of wheel carrier
It is overlapping with screw 32.When more specifically, from radially, not only side block circle 56B opposite with wheel carrier is overlapping for screw 32, Er Qiechao
Cross the opposite side block circle 56B of wheel carrier also with the overlapping L (32-19B1) of eccentric body bearing 19.In addition, eccentric body bearing 19 mentioned here
(the eccentric body bearing 19 overlapping with screw 32) also refers to rolling element 19B1 parts, and not comprising retainer 19B2 parts.
In order to realize above structure in the case where not reducing the bearing strength of bent axle 20, this geared system 10 also has such as
Lower structure.
First, in the geared system 10, being inserted into the axle portion part 31 of the hollow part 21 of bent axle 20 has：Minor diameter part 34,
It is arranged at the side (with vibrating part opposite side) opposite with wheel carrier；Large-diameter portion 33, is arranged at the wheel carrier of the minor diameter part 34
30 sides (vibrating part side) (outside diameter d 33 of the ＜ large-diameter portions 33 of outside diameter d 34 of minor diameter part 34).
Also, the side of wheel carrier 30 of the large-diameter portion 33 in axle portion part 31 is provided with the bigger root bottom part 32 of diameter.In other words, exist
In axle portion part 31, the diameter of the side of wheel carrier 30 is more than the diameter of the side opposite with wheel carrier.Also, it is embedded with the 1st outside large-diameter portion 33
Inboard bearing 50, is embedded with the 2nd inboard bearing 60 outside minor diameter part 34.That is, the internal diameter D52 of the 1st inner ring 52 of the 1st inboard bearing 50
(outside diameter d 33 of=large-diameter portion 33) is more than the internal diameter D62 (external diameters of=minor diameter part 34 of the 2nd inner ring 62 of the 2nd inboard bearing 60
d34)。
On the other hand, it is formed at (being loaded for the 1st outer ring 53) the 1st outer ring mounting portion 29 of the hollow part 21 of bent axle 20
Internal diameter D29 is more than and (configured for the 2nd outer ring 63) the internal diameter D27 of the 2nd outer ring mounting portion 27.That is, the 1st of the 1st inboard bearing 50
The outside diameter d 53 (=D29) of outer ring 53 is more than the outside diameter d 63 (=D27) of the 2nd outer ring 63 of the 2nd inboard bearing 60.
In addition, the side end opposite with wheel carrier in the 1st outer ring mounting portion 29 is formed with the 1st inboard bearing 50 of suppression
The 1st outer ring end difference 25 that 1st outer ring 53 is moved to the side opposite with wheel carrier vertically.In the wheel of the 2nd outer ring mounting portion 27
Frame side end, which is formed with, suppresses the 2nd outer ring end difference that the 2nd outer ring 63 of the 2nd inboard bearing 60 is moved to the side of wheel carrier 30 vertically
26.1st outer ring end difference 25 and the 2nd outer ring end difference 26 are constituted to be assembled in the 1st inboard bearing 50 and the 2nd in back-to-back mode
" shoulder " for preventing the 1st outer ring 53 and the 2nd outer ring 63 to be axially moveable during side bearing 60.
Also, it is formed between the root bottom part 32 and large-diameter portion 33 of axle portion part 31 in the suppress the 1st inboard bearing 50 the 1st
The 1st inner ring end difference 36 that circle 52 is moved to the side of wheel carrier 30 vertically.Circlip groove 37 is formed with the minor diameter part 34 of axle portion part 31,
The opposite side block circle (positioning element) 65 of wheel carrier is embedded with the circlip groove 37.The opposite side block circle 65 of wheel carrier is via pad 66 and pad
67 the 2nd inner rings 62 for suppressing the 2nd inboard bearing 60 are moved to the side opposite with wheel carrier vertically.
When assembling the 1st inboard bearing 50 and 2 inboard bearing 60 in back-to-back mode, the 1st inner ring end difference 36 and
The opposite side block circle 65 of wheel carrier is together played to the 1st with pad 66 and (can apply appropriate precompressed according to selection) pad 67
The inboard bearing 60 of inboard bearing 50 and the 2nd applies the function of precompressed.That is, due to the axial movement of the 1st outer ring 53 and the 2nd outer ring 63
By the 1st outer ring end difference 25 and the 2nd outer ring end difference 26 is limited and the 1st inboard bearing 50 and the 2nd inboard bearing 60 are clipped in the 1st
Between inner ring end difference 36 and the opposite side block circle 65 of wheel carrier, therefore it is applied with the 1st inboard bearing 50 and the 2nd inboard bearing 60
Precompressed.
Then, the effect to the geared system 10 is illustrated.
If the input shaft 13 of the geared system 10 integrated with the motor drive shaft 9A of motor 9 rotates, the input shaft is assembled in
Little gear 11 on 13 rotates.The rotation of little gear 11 is transferred to gear (power transmission member) 14.Because gear 14 is via even
Knot bolt 15 is installed on the side end opposite with wheel carrier of bent axle 20, if therefore gear 14 rotate, bent axle 20 is via the 1st
The inboard bearing 60 of inboard bearing 50 and the 2nd is rotated in the state of being supported on the periphery 31A of axle portion part 31.
If bent axle 20 rotates, the eccentric body 24 integrated with the bent axle 20 rotates, and makes via eccentric body bearing 19
The swing rotary of external gear 12.External gear 12 and the internal messing of internal gear 40.Therefore, external gear 12 is often swung once, the phase of external gear 12
(rotation) amount suitable with number of teeth difference (1 tooth amount) is rotated for internal gear 40.The rotation composition via slide promoting member 18 and
Domestic 17 are transferred to wheel carrier 30.In addition, the composition that swings of external gear 12 is promoted by through hole 12A1,12B1 of external gear 12 with sliding
The gap entered between part 18 absorbs.
By the rotation of wheel carrier 30, the object Part for being fixed on the wheel carrier 30 can be made to be rotated relative to shell 70.
Here, in this geared system 10, in inner circumferential 21A and (integrated with wheel carrier 30) axle portion part 31 of bent axle 20
The 1st inboard bearing 50 or the 2nd inboard bearing 60 are configured between the 31A of periphery, bent axle 20 is via the 1st inboard bearing 50 or the 2nd
Inboard bearing 60 is supported on axle portion part 31.
1st inboard bearing 50 or the 2nd inboard bearing 60 axially protrude L from the axial end 22,23 of bent axle 20 respectively
(22-50)、L(23-60).Therefore, with the 1st inboard bearing 50 or the 2nd inboard bearing 60 axial end 22 not from bent axle 20,
The 23 conventional structures protruded are compared, and can further increase the carrying capacity of the 1st inboard bearing 50 or the 2nd inboard bearing 60, from
And the life-span of the 1st inboard bearing 50 or the 2nd inboard bearing 60 can be extended.
More specifically, in the 1st inboard bearing 50 of the side of wheel carrier 30 of bent axle 20 is configured at, by making the 1st inner ring 52
It is more prominent more to the side of wheel carrier 30 on axial direction than bent axle 20, so that the 1st inner ring 52 to be configured to the wheel carrier of axle portion part 31 as far as possible
30 sides (close to the side of foundation).Thus, the 1st inner ring 52 is supported in the higher part of the rigidity of axle portion part 31, by the 1st inner shafts
The actual carrying capacity for holding 50 is maintained higher.Also, by making the 1st inboard bearing 50 and the 2nd inboard bearing 60 the two axles
The axial end protrusion from bent axle is held, so as to extend bearing span to improve carrying capacity.
Also, width W78 axial gap 78 is energetically ensured between bent axle 20 and wheel carrier 30 (vibrating part), and
It is configured to the inboard bearing 50 of axial gap 78 and the 1st when from radially overlapping.Thereby, it is possible to which axial gap 78 is used as into profit
The path of lubrication prescription, and the lubrication property of the 1st inboard bearing 50 can be maintained higher.
Especially, in this configuration example, the assembling of back-to-back mode cause the 1st outer ring 53 be located at more leaned on than the 1st inner ring 52 with
The opposite side of wheel carrier, therefore, using this point, can be configured to following structure：1st outer ring 53 of the 1st inboard bearing 50 is simultaneously
Do not protruded from (side of wheel carrier 30) axial end 22 of bent axle 20, only the 1st inner ring 52 and the 1st rolling element 51 are from the axial end
22 protrude and in face of axial gap 78.
Therefore, it is possible to make the lubricant in axial gap 78, extremely swimmingly (not stopped by the 1st outer ring 53) is supplied to the 1st
Between the rolling element 51 of outer ring 53 and the 1st and between the 1st rolling element 51 and the 1st inner ring 52.Thereby, it is possible in further extension the 1st
The life-span of side bearing 50.
On the other hand, a part for the 2nd inboard bearing 60 for the side opposite with wheel carrier of bent axle 20 is configured at from bent axle
20 axial end portion is protruded, and when from radially, is configured at the 2nd inboard bearing of the side opposite with wheel carrier of bent axle 20
The gear 14 (power transmission member) of 60 side end opposite with wheel carrier with being installed on bent axle 20 is overlapping.
More specifically, the protuberance 63B that the axial end portion from bent axle 20 of the 2nd outer ring 63 is protruded is fixed in bent axle 20
(integrated with bent axle 20) gear 14 through hole 14 inner circumferential 14C supporting.That is, the 2nd outer ring 63 across and be supported on song
Axle 20 and the gear 14 integrated with the bent axle 20, as a result, the whole region in the axial direction of the 2nd outer ring 63 can be from bent axle 20
Or gear 14 receives supporting reaction force.
Also, the whole region in the axial direction of the 2nd inner ring 62 is extended to the axle portion part 31 of the radially inner side of gear 14
Hold.Therefore, although a part for the 2nd inboard bearing 60 is located at (side opposite with wheel carrier) axial end 23 than bent axle 20
The side opposite with wheel carrier is more leaned on, can exactly be formed with lengthening bent axle 20 and the both parts of axle portion part 31 vertically so that will
Bearing span between 2nd inboard bearing 60 and the 1st inboard bearing 50 ensures larger situation identical situation, so as to
Increase carrying capacity.
In addition, the 2nd inboard bearing 60 is arranged to protrude from the axial end 23 of bent axle 20, and gear 14 is by the 2nd
The protuberance 63B supportings of side bearing 60.Therefore, it is possible to the axle for protruding gear 14 with cantilever position from the 2nd inboard bearing 60
It is set to be shorter than gear 14 from the prominent axial length L (14-23) of the axial end 23 of bent axle 20 to length L (14-60) B.Thus,
The supporting rigidity (supporting stabilizer) of gear 14 can be further improved, therefore, it is possible to further improve the 2nd inboard bearing 60
Actual carrying capacity, so as to the further extension life-span.
Also, when from radially, the 2nd inboard bearing 60 is overlapping with gear 14 (power transmission member).Therefore, although can
To obtain the increase effect of above-mentioned carrying capacity, but the 2nd inboard bearing 60 is contained in the parallel axes retarding stage G1 of geared system 10
Gear 14 radially inner side.Therefore, can (compared with the merely structure of the axial length of extension bent axle 20 and axle portion part 31)
To avoid the axial length of whole geared system 10 from increasing.
As a result, in this geared system 10, no matter being arranged in the 1st inboard bearing 50 of the side of wheel carrier 30 of bent axle 20 also
The increasing of actual carrying capacity can be obtained by being arranged in the 2nd inboard bearing 60 of the side opposite with vibrating part of bent axle 20
Big effect, so as to the further extension life-span.
In addition, in the geared system 10, the 1st inboard bearing 50 and the 2nd inboard bearing 60 are configured to respectively from bent axle 20
Axial end 22,23 axially protrude, using this point, the 1st inboard bearing 50 and the 2nd inboard bearing 60 can be configured to
It is not overlapping with eccentric body bearing 19 (rolling element 19A1,19B1) when from radially.Thereby, it is possible to suppress in by the 1st
Eccentric body when side bearing 50 (the 1st outer ring 53) and the 2nd inboard bearing 60 (the 2nd outer ring 63) are pressed into the inner circumferential 21A of bent axle 20
The rolling facial disfigurement of bearing 19.By the structure, the lost of life of eccentric body bearing 19 can be further prevented.
In addition, in this geared system 10, axial end 23 of the bent axle 20 in the side opposite with wheel carrier of the bent axle 20
With the screw 32 for installing gear 14.When from radially, the positioning element of the screw 32 and eccentric body bearing 19 is (i.e.,
The opposite side block circle 56B of wheel carrier) it is overlapping.Specifically, in this geared system 10, rolling of the screw 32 also with eccentric body bearing 19
Body 19B1 overlapping L (32-19B1) in itself.Thereby, it is possible to make gear 14 closer to the side of eccentric body bearing 19 (external gear 12
Side) in the state of gear 14 is installed on bent axle 20, so as to further shorten the axial length of whole geared system 10.
Also, in this geared system 10, axle portion part 31 is configured to the path for being arranged at the side opposite with wheel carrier
The large-diameter portion 33 in portion 34 and the side of wheel carrier 30 for being arranged at the minor diameter part 34.More specifically, than the more side of roller frame 30 of large-diameter portion 33
Root bottom part 32 diameter it is bigger.
Also, on inboard bearing, the 1st inboard bearing 50 is configured with large-diameter portion 33, is configured with minor diameter part 32 in the 2nd
Side bearing 60.(the 1st outer ring 53) outside diameter d 53 of 1st inboard bearing 50 is more than (the 2nd outer ring 63) of the 2nd inboard bearing 60
Outside diameter d 63.
Thus, it is possible to be acted on as follows.That is, in this geared system 10, the 2nd inboard bearing 60 is configured from wheel carrier 30
(than ever) on axle portion part 31 protruded with cantilever position more leans on the side opposite with vibrating part, therefore the root of axle portion part 31
The suffered burden in bottom can be bigger.But, by by the diameter of the side of wheel carrier 30 (foundation side) of axle portion part 31 nearby be set to it is larger and
Larger (outside diameter d 53 is larger) the 1st inboard bearing 50 of carrying capacity is configured, can be by the intensity near the foundation of axle portion part 31
It is maintained higher.
Also, the less minor diameter part 34 of outside diameter d 34 is set by the side opposite with wheel carrier in axle portion part 31, it is tied
Really, the radial thickness of the part of the setting screw 32 of bent axle 20 can be ensured larger.That is, can prevent bent axle 20 with
In the case that intensity near the opposite side end of wheel carrier declines, it can realize that above-mentioned screw 32 and eccentric body bearing 19 are overlapping
Structure.
In addition, in this geared system 10, the 1st inboard bearing 50 and the 2nd inboard bearing 60 are assembled in back-to-back mode.
Therefore, the 1st inboard bearing 50 and the 2nd inboard bearing 60 are axially protruded from the axial end 22,23 of bent axle 20 respectively, thus
To bearing span can be expanded as to larger advantage.
Also, due to being assembled in back-to-back mode, therefore especially in the 1st inboard bearing 50, can also obtain can
Make lubricant (not by the 1st outer ring 53 the stop and) supply from axial gap 78 to the advantage near the 1st rolling element 51.But
It is in the present invention, not necessarily to assemble inboard bearing in back-to-back mode.For example, need not prepare in one pair at all
Side bearing.
Figure 3 illustrates the variation only with an inboard bearing.
In Fig. 3 variation, bent axle 20 also has hollow part 21, has as the wheel carrier 30 of vibrating part and is inserted into sky
The axle portion part 31 of center portion 21.But, in the variation, in (hollow part 21) inner circumferential 21A and the axle portion part 31 of bent axle 20
The 3rd inboard bearing 80 is only configured between the 31A of periphery.In addition, the hollow part 21 of bent axle 20 is actually by the 3rd inboard bearing
80 take.
3rd inboard bearing 80 with the 3rd rolling element 81, the 3rd inner ring 82 and the roller bearing of the 3rd outer ring 83 by constituting.3rd
Inboard bearing 80 is configured between the inner circumferential 21A of bent axle 20 and the periphery 31A of axle portion part 31, and the 3rd inner ring 82 and the 3rd outer ring
83 axially protrude L (22-80), L (23-80) from the axial end 22,23 of bent axle 20 respectively.In addition, symbol 84 is limitation the 3rd
Back-up ring of the inboard bearing 80 relative to the axial location of bent axle 20.
In the geared system 10, axial gap 78 is also equipped between bent axle 20 and wheel carrier (vibrating part) 30, and
And when from radially, the overlapping L (22-80) of 78 and the 3rd inboard bearing of axial gap 80.I.e., it is possible to by the 3rd inboard bearing
80 are interpreted as having and the class of the 1st inboard bearing 50 for the side end of wheel carrier 30 for being configured at bent axle 20 in geared system 10 before
As structure and characteristic bearing.
Also, in the geared system 10, the oriented bent axle is also installed in a side end opposite with wheel carrier for bent axle 20
The gear 14 (power transmission member) of 20 transmission power, and when from radially, the inboard bearing 80 of gear 14 and the 3rd is overlapping
L(14-80)。
That is, the 3rd inboard bearing 80 can also be interpreted as having with being configured at bent axle in geared system 10 before
The bearing of the similar structure of 2nd inboard bearing 60 of 20 side end opposite with wheel carrier and characteristic.
Although as a result, the inboard bearing 80 of inboard bearing only one of which the 3rd, there is geared system 10 before having both
The characteristic of the effect (advantage) of 1st inboard bearing 50 and the 2nd inboard bearing 60.
Other structures and effect are identical with geared system 10 before, therefore for convenience's sake, in the accompanying drawings to identical
Or the position with similar functions marks same-sign and omits repeat specification.
One of another embodiment of the present invention is shown in Fig. 4 and Fig. 5.
Shown in Fig. 4 and Fig. 5 and the present invention is applied on the Eccentrically swinging gear device 110 referred to as distribution formula
Configuration example.
In geared system 10 before, only possessing one in the shaft core position of internal gear 40, (possessing makes wobble gear
The eccentric body 24 that (that is, external gear 12) is swung) bent axle 20.In contrast, in the geared system 110 shown in the Fig. 4 and Fig. 5
In, possess that multiple (possessing swings wobble gear (that is, external gear 112) in the position from the axle center C140 of internal gear 140 skew
Eccentric body 124) bent axle 120 (possesses three in the example：Only illustrate one).
Distribution gear 114 (power transmission member) is respectively arranged with three bent axles 120.Each distribution gear 114 is simultaneously
Engaged with an input gear 111 being integrally provided on input shaft 113.Therefore, distribution gear 114 receives input gear
111 rotation and each bent axle 120 can be made in same direction with identical rotating speed rotate.Thus, three bent axles 120 are with identical phase
Position rotation so that swung while external gear 112 is with 140 internal messing of internal gear.In addition, input shaft 113 passes through a pair of bearings
188th, 189 wheel carrier 130 and shell 170 are supported on.Motor (not shown) is installed in shell 170, so as to input shaft 113
Transmit power.
Internal gear 140 is rotatably freely supported on shell 170 via a pair of bearings 291,292.The main body of internal gear 140
141 is integrated with output circle body 195.Screw 197 is formed with output circle body 195, the output driving of circle body 195 uses the screw
197 are linked to the object Part (not shown) of the output circle body 195.
If external gear 112 is swung, produce and rotate against between the external gear 112 and internal gear 140, bent axle 120 around
The axle center C140 of internal gear 140 is revolved round the sun.The revolution of the bent axle 120 by axle portion part 131 make shell 170 and with the shell
The wheel carrier 130 of 170 integrations is rotated (defeated for the shell 170 for being provided with motor relative to output circle body 195
Go out circle body 195 to be rotated against).
In the geared system 110, vibrating part possesses the shell of the side being configured in the axial direction of bent axle 120, and (the 1st is convex
Edge part) 170 and the wheel carrier (the 2nd vibrating part) 130 of opposite side that is configured in the axial direction of bent axle 120.
The vibrating part (that is, shell 170) of axle portion part 131 and the 1st is set by identical part and is integrated, and axle portion part
131 are linked by bolt 139 (can be press-in) with the 2nd vibrating part (that is, wheel carrier 130).
Also, inboard bearing possesses the 4th of the side end of shell 170 (the 1st vibrating part side end) for being configured at bent axle 120
5th inboard bearing 190 of inboard bearing 180 and the wheel carrier side end (the 2nd vibrating part side end) for being configured at bent axle 120.
In addition, in the above-described embodiment, " only wheel carrier 30 " plays a role as vibrating part, and wheel carrier 30 has
There is axle portion part 31.But, in this embodiment, " shell 170 and the both parts of wheel carrier 130 " are played as vibrating part
Effect, and shell 170 and the both parts of wheel carrier 130 are respectively provided with (shared) axle portion part 131.
4th inboard bearing 180 and the 5th inboard bearing 190 be configured at (hollow part 121) the inner circumferential 121A of bent axle 120 with
Between the periphery 131A of axle portion part 131.4th inboard bearing 180 and the 5th inboard bearing 190 are respectively from the axial end of bent axle 120
123rd, 122 L (123-180), L (122-190) are protruded.
Also, the 1st axial gap 179 is provided between bent axle 120 and shell 170, and in bent axle 120 and wheel carrier 130
Between be provided with the 2nd axial gap 178.Also, when from radially, the 1st axial gap 179 and the 4th inboard bearing 180 are (interior
Enclose 182) overlapping L (123-180).Also, when from radially, the 2nd axial gap 178 and the (inner ring of the 5th inboard bearing 190
192) overlapping L (122-190).
Therefore, the 4th inboard bearing 180 can be lubricated well via the 1st axial gap 179, so as to extend in the 4th
The life-span of side bearing 180.Also, the 5th inboard bearing 190 can be lubricated well via the 2nd axial gap 178, so as to
Extend the life-span of the 5th inboard bearing 190.
4th inboard bearing 180 has the 4th rolling element 181, the 4th inner ring 182 and the 4th outer ring 183.5th inboard bearing 190
With the 5th rolling element 191, the 5th inner ring 192 and the 5th outer ring 193.4th inboard bearing 180 and the 5th inboard bearing 190 with back to
The mode of the back of the body is configured, and is applied by shell 170 and wheel carrier 130 and via each inner ring (the 4th inner ring 182 and the 5th inner ring 192)
Added with precompressed.
More specifically, it is formed with the 4th inboard bearing of suppression in the wheel carrier side end of the outer ring mounting portion 127 of bent axle 120
The outer ring end difference 126 that 180 the 4th outer ring 183 is moved to the side of wheel carrier 130 vertically.In the outer ring mounting portion 129 of bent axle 120
Shell side end be formed with suppress the 5th inboard bearing 190 the 5th outer ring 193 axially outward the side of shell 170 movement outer ring rank
Terraced portion 125.Outer ring end difference 125 and outer ring end difference 126 are constituted assembles the 4th inboard bearing 180 and the 5th in back-to-back mode
" shoulder " of the axial movement of the 4th outer ring 183 and the 5th outer ring 193 is prevented during inboard bearing 190.
On the other hand, axial end of the 4th inboard bearing 180 (the 4th inner ring 182) of the side of shell 170 directly with shell 170
Face 177 is abutted.5th inboard bearing 190 (the 5th inner ring 192) of the side of wheel carrier 130 is via pad 167 and the axial end of wheel carrier 130
Face 136 is abutted.On pad 167, the slightly different multiple pads of axial width can be prepared, and select most suitable in assembling
One.
By the structure, make shell 170 and wheel carrier 130 bringing together and fasten using bolt 139, thus, it is possible to via
192 pair of the 4th inboard bearing 180 of 4 inner rings 182 and the 5th inner ring and the 5th inboard bearing 190 apply precompressed.Now, pad 167 is passed through
It is selected, most suitable precompressed can be adjusted.
In this embodiment, (including the part protruded from bent axle 120) the 4th inboard bearing 180 the 4th inner ring
Whole region in the axial direction of 5th inner ring 192 of the 182 and the 5th inboard bearing 190 is reliably supported on axle portion part 131.Cause
This, (the structure not protruded with the 4th inboard bearing 180 and the 5th inboard bearing 190 from the axial end 122,123 of bent axle 120
Compared to) bearing span of the 4th inboard bearing 180 and the 5th inboard bearing 190 can be further increased, and one can be entered
Step improves supporting rigidity, so as to the life-span of further the 4th inboard bearing 180 of extension and the 5th inboard bearing 190.
In addition, in this example embodiment, axle portion part 131 is formed as one with shell 170 by same part, and axle portion part 131
It is integrated with wheel carrier 130 but it is also possible to be inverse structure via bolt 139.That is, axle portion part 131 and wheel carrier is by same part shape
Be integrally formed, and axle portion part 131 via bolt with it is outer shell integrated.It is (outer alternatively, it is also possible to constitute the two by individual components
Shell and wheel carrier the two) part, it is any one preferably wherein but in order to which the supporting rigidity on inboard bearing periphery is maintained into higher
It is individual to be formed as one with axle portion part by same part.
Also, as described above, (having the axle portion part for the hollow part for being inserted into bent axle) vibrating part can be only arranged at
Side in the axial direction of bent axle, can also be arranged at the both sides in the axial direction of bent axle.
And it is possible to only set an inboard bearing, a pair of inside bearing can also be set.In bent axle by a pair of bearings branch
In the case of holding, as long as at least one bearing therein is inboard bearing involved in the present invention, other bearings are without one
It is set to inboard bearing involved in the present invention.
That is, other bearings from the axial end of bent axle without necessarily axially protruding.Also, other bearings are without one
Surely between the periphery for being configured at the inner circumferential of bent axle and axle portion part, for example, the periphery of bent axle can be configured at.
Also, in embodiments, inboard bearing possesses special inner ring and outer ring, but is not limited to this, can also
Axle portion part is doubled as inner ring, bent axle is doubled as outer ring.
Claims (11)
1. a kind of Eccentrically swinging gear device, it possesses：Wobble gear；Bent axle, makes the wobble gear swing rotary；And flange
Part, arranged opposite with the bent axle in the axial direction, the Eccentrically swinging gear device is characterised by,
The bent axle has hollow part,
The vibrating part has the axle portion part for being inserted into the hollow part,
Inboard bearing is configured between the inner circumferential of the bent axle and the periphery of the axle portion part,
The axial end of the inboard bearing from the bent axle is axially protruded.
2. Eccentrically swinging gear device according to claim 1, it is characterised in that
As the inboard bearing, at least possess the 1st inboard bearing of the vibrating part side end for being configured at the bent axle,
Axial gap is provided between the bent axle and the vibrating part,
When from radially, the axial gap and the 1st inboard bearing are overlapping.
3. Eccentrically swinging gear device according to claim 2, it is characterised in that
When from radially, the inner ring and rolling element of the axial gap and the 1st inboard bearing are overlapping.
4. Eccentrically swinging gear device according to any one of claim 1 to 3, it is characterised in that
The bent axle has the eccentric body for being used for swinging the wobble gear,
Eccentric body bearing is configured between the eccentric body and the wobble gear,
When from radially, the eccentric body bearing is not overlapping with the inboard bearing.
5. Eccentrically swinging gear device according to any one of claim 1 to 4, it is characterised in that
As the inboard bearing, at least possess in be configured at a side end opposite with vibrating part for the bent axle the 2nd
Side bearing,
The power transmission member to the crankshaft is installed in a side end opposite with vibrating part for the bent axle,
When from radially, the power transmission member and the 2nd inboard bearing are overlapping.
6. Eccentrically swinging gear device according to claim 5, it is characterised in that
The bent axle has the eccentric body for being used for swinging the wobble gear,
Eccentric body bearing is configured between the eccentric body and the wobble gear,
Axial end of the bent axle in the side opposite with vibrating part of the bent axle, which has, to be used to install the power transmission
The screw of part,
The eccentric body bearing is positioned at the bent axle by positioning element in the axial direction,
When from radially, the positioning element of the eccentric body bearing and the screw are overlapping.
7. Eccentrically swinging gear device according to claim 6, it is characterised in that
When from radially, the screw and the eccentric shaft load-bearing are folded.
8. Eccentrically swinging gear device according to any one of claim 1 to 7, it is characterised in that
The axle portion part has：Minor diameter part, is arranged at the side opposite with vibrating part；Large-diameter portion, is arranged at the minor diameter part
Vibrating part side,
As the inboard bearing, possess and be configured at the 1st inboard bearing of the large-diameter portion and be configured at the 2nd of the minor diameter part
Inboard bearing,
The external diameter of 1st inboard bearing is more than the external diameter of the 2nd inboard bearing.
9. Eccentrically swinging gear device according to claim 1, it is characterised in that
As the vibrating part, possess the 1st vibrating part of the side being configured in the axial direction of the bent axle and be configured at institute
The 2nd vibrating part of the opposite side in the axial direction of bent axle is stated,
The axle portion part and the 1st vibrating part are set by same part and are integrated, and the axle portion part and the described 2nd convex
Edge part links.
10. Eccentrically swinging gear device according to claim 1, it is characterised in that
As the vibrating part, possess the 1st vibrating part of the side being configured in the axial direction of the bent axle and be configured at institute
The 2nd vibrating part of the opposite side in the axial direction of bent axle is stated,
As the inboard bearing, possess the 1st vibrating part side end for being configured at the bent axle the 4th inboard bearing and
The 5th inboard bearing of the 2nd vibrating part side end of the bent axle is configured at,
The 1st axial gap is provided between the bent axle and the 1st vibrating part, and in the bent axle and the described 2nd
The 2nd axial gap is provided between vibrating part,
When being observed from radial direction, the 1st axial gap and the 4th inboard bearing are overlapping, and when from radial direction, described the
2 axial gaps and the 5th inboard bearing are overlapping.
11. Eccentrically swinging gear device according to claim 10, it is characterised in that
4th inboard bearing and the 5th inboard bearing have rolling element, inner ring and outer ring, and the 4th inboard bearing respectively
And the 5th inboard bearing configured in back-to-back mode, it is convex by the described 1st on the 4th inboard bearing and the 5th inboard bearing
Edge part and the 2nd vibrating part are simultaneously applied with precompressed via each inner ring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016024346A JP6758845B2 (en) | 2016-02-12 | 2016-02-12 | Eccentric swing type gear device |
| JP2016-024346 | 2016-02-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107084229A true CN107084229A (en) | 2017-08-22 |
| CN107084229B CN107084229B (en) | 2020-12-01 |
Family
ID=59615311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710015909.8A Active CN107084229B (en) | 2016-02-12 | 2017-01-10 | Eccentric oscillating gear device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6758845B2 (en) |
| CN (1) | CN107084229B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111344504A (en) * | 2017-11-14 | 2020-06-26 | 金梅克斯集团有限公司 | Transmission device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023012801A (en) | 2021-07-14 | 2023-01-26 | 住友重機械工業株式会社 | Eccentric oscillation type gear device |
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| JPS593048U (en) * | 1982-06-30 | 1984-01-10 | 株式会社小松製作所 | reducer device |
| JPS62155331A (en) * | 1985-12-27 | 1987-07-10 | Aisin Warner Ltd | Shaft supporting device utilizing bearing |
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| JP5816584B2 (en) * | 2012-03-23 | 2015-11-18 | 住友重機械工業株式会社 | Power transmission device |
| JP6452281B2 (en) * | 2013-10-04 | 2019-01-16 | 住友重機械工業株式会社 | Shaft member support structure |
| JP6169004B2 (en) * | 2014-01-16 | 2017-07-26 | 住友重機械工業株式会社 | Eccentric rocking speed reducer |
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| JP2004092782A (en) * | 2002-08-30 | 2004-03-25 | Sumitomo Heavy Ind Ltd | Valve driving reduction gear |
| CN101466967A (en) * | 2006-06-13 | 2009-06-24 | 纳博特斯克株式会社 | Reduction gear |
| CN102483132A (en) * | 2009-09-16 | 2012-05-30 | 纳博特斯克株式会社 | Eccentric Oscillation Gear Device And Method For Producing Eccentric Oscillation Gear Device |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6758845B2 (en) | 2020-09-23 |
| JP2017141915A (en) | 2017-08-17 |
| CN107084229B (en) | 2020-12-01 |
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