CN104948720B - Rotating device - Google Patents
Rotating device Download PDFInfo
- Publication number
- CN104948720B CN104948720B CN201510039594.1A CN201510039594A CN104948720B CN 104948720 B CN104948720 B CN 104948720B CN 201510039594 A CN201510039594 A CN 201510039594A CN 104948720 B CN104948720 B CN 104948720B
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- China
- Prior art keywords
- oil sealing
- input shaft
- bearing
- rotating device
- shell
- Prior art date
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 77
- 238000005461 lubrication Methods 0.000 claims abstract description 52
- 239000000314 lubricant Substances 0.000 claims abstract description 41
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 239000003921 oil Substances 0.000 description 52
- 230000010355 oscillation Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 102220477731 Tumor necrosis factor receptor superfamily member 13C_L28A_mutation Human genes 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0472—Seals
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0401—Features relating to lubrication or cooling or heating using different fluids, e.g. a traction fluid for traction gearing and a lubricant for bearings or reduction gears
-
- 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Sealing Of Bearings (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Retarders (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The problem of the present invention is to obtain a kind of rotating device for the lubricity that can further improve oil sealing.A kind of deceleration device, that is, rotating device (12), it possesses shell (34) the i.e. cover body shell (54) for being sealed with lubricant, input shaft (18) and oil sealing (72), wherein, oil sealing is configured at than input shaft bearing (60) more by the axially external of input shaft, the axial movement of input shaft bearing is limited by baffle ring (74), the baffle ring is more being embedded in the circlip groove (54A) of shell than input shaft bearing by the private side of deceleration device, shell has lubrication channel (78) in the radial outside of input shaft bearing, lubrication channel connection is more leaned on than the input shaft bearing between space and the oil sealing of the private side of deceleration device, the lubrication channel has relative to the inclined inclined plane of input shaft (78D), the end (78D2) of the inclined plane is presented axially in more leans on oil sealing side than baffle ring.
Description
This application claims the priority based on Japanese patent application filed in 24 days March in 2014 the 2014-060986th.
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 rotating device.
Background technology
There is a kind of power transmission (rotating device) disclosed in patent document 1, it possesses the shell for being sealed with lubricant
And the high speed shaft through the shell.
In the power transmission, the bearing for supporting the high speed shaft is configured between high speed shaft and shell.In the bearing
Axially external high speed shaft and shell between be configured with the oil sealing of lubricant in sealing shell.
Patent document 1：Japanese Unexamined Patent Publication 2011-043243 publications (Fig. 8)
However, in the rotating device of this structure, since oil sealing is configured at and (is embedded between high speed shaft and shell) axis
That holds is axially external, therefore the problem of easily become inadequate there are the lubrication of the sealing labial surface of the oil sealing.
The content of the invention
The present invention completed to solve the problems, such as this conventional, its problem is that providing one kind can further carry
The rotating device of the lubricity of high oil sealing.
The present invention is by being set to solve the above subject such as lower structure, and a kind of rotating device, it possesses：It is sealed with lubricant
Shell, the axis through the shell, the bearing and oil sealing of the axis being configured between the axis and shell, wherein, the oil sealing
It is configured at than the bearing more by the axially external of the axis, the axial movement of the bearing is limited by baffle ring, and the baffle ring exists
The circlip groove of the shell more is embedded in by the private side of the rotating device than the bearing, the shell is in the bearing
Radial outside has lubrication channel, and space and the institute of the private side of the rotating device are more leaned in lubrication channel connection than the bearing
Between stating oil sealing, which has is presented axially in relative to the inclined inclined plane of the axis, the end of the inclined plane
The oil sealing side is more leaned on than the baffle ring.
In the present invention, shell has the sky for connecting the private side that rotating device is more leaned on than the bearing in the radial outside of bearing
Between lubrication channel between oil sealing.Therefore, lubricant can bypass bearing and reach oil sealing by the lubrication channel.
Also, lubrication channel has to be presented axially in than institute relative to the inclined inclined plane of axis, the end of the inclined plane
State baffle ring and more lean on the oil sealing side.Therefore, lubricant can effectively reach the oil sealing side of baffle ring along the inclined plane.Also,
Lubricant is stopped by the baffle ring, thus prevents lubricant from returning to the private side of rotating device, can more efficiently to oil sealing into
Row lubrication.
According to the present invention, the rotating device for the lubricity that can further improve oil sealing is obtained.
Brief description of the drawings
Fig. 1 is the entirety sectional view of the rotating device involved by an example of embodiments of the present invention.
Fig. 2 is the major part amplification view of Fig. 1.
Fig. 3 is the sectional view along the arrow III-III lines of Fig. 2.
Fig. 4 is the major part amplification view of the rotating device involved by an example of another embodiment of the present invention.
In figure：12- deceleration devices (rotating device), 14- internal gears, 16- external gears, 18- input shafts (axis), 28- are eccentric
Body, 34- shells, 54- cover body shells, 54A- circlip grooves, 60- input shaft bearing, 72- oil sealings, 74- baffle rings, 78- lubrication channels,
78D- inclined planes.
Embodiment
Hereinafter, an example of embodiments of the present invention is described in detail with reference to the accompanying drawings.
Fig. 1 is the entirety of the eccentric oscillating-type deceleration device (rotating device) involved by an example of embodiments of the present invention
Sectional view, Fig. 2 are the major part amplification views of Fig. 1, and Fig. 3 is the sectional view along the arrow III-III lines of Fig. 2.
The deceleration device (rotating device) 12 possesses the shell 34 for being sealed with lubricant and the input shaft through the shell 34
18.Deceleration device 12 involved by present embodiment is the eccentric oscillating-type deceleration device possessed such as lower component：Internal gear 14；Outside
Gear 16, while swing with 14 internal messing of internal gear；Axis, has the eccentric body 28 for being used for swinging the external gear 16.Should
The input shaft 18 of deceleration device 12 is equivalent to " axis " in present embodiment.
Hereinafter, the structure of deceleration device 12 is illustrated successively from input side.
Input shaft 18 links via key (only illustrating keyway 18A) and motor drive shaft (not shown) or belt wheel etc..On input shaft 18
The starting of oscillation component 30 for possessing 2 eccentric bodies 28 is linked with via key 26.The periphery of each eccentric body 28 relative to input shaft 18 axis
The only eccentric eccentric amount es of heart C18 (with reference to figure 2).The eccentric phase difference 180 degree of 2 eccentric bodies 28 is (to being diametrically located remotely from each other
Direction it is eccentric).External gear 16 can be rotatably assembled with eccentric swing via eccentric body bearing 32 in the periphery of eccentric body 28.
External gear 16 swing while with 14 internal messing of internal gear.
In the embodiment, internal gear 14 is mainly made of such as lower component：Internal tooth wheel body 14A, itself and shell 34 are integrally
Change；Fulcrum post 14B, is supported on internal tooth wheel body 14A；And outer roller 14C, rotatably it is assembled in the outer of fulcrum post 14B
Week, and form the internal tooth of internal gear 14.The interior number of teeth (quantity of outer roller 14C) of internal gear 14 is slightly more than the external tooth of external gear 16
Number (only 1 more in the example).
The vibrating part 36 for the part for forming output body 46 is configured with the axial side (load-side) of external gear 16.It is convex
Formed with press-in hole 36A on edge part 36, it is fitted together in press-in hole 36A by press-in, is linked with pin member 38.The pin member 38
It is disposed through the through hole 16A of external gear 16.Slideably being fitted together to (outer) in the periphery of pin member 38 has roller member 40.Roller
2 times of gap of the eccentric amount e for having equivalent to eccentric body 28 is ensured between component 40 and the through hole 16A of external gear 16.
The output shaft that the intermediate member 42 that vibrating part 36 is reduced via the diameter of axle with 4 stages is further reduced with the diameter of axle
The integration of part 44.Roller member 40, pin member 38, vibrating part 36, intermediate member 42 and output shaft assembly 44 are integrally formed rotation
Larger output body 46.Output body 46 is rotatably freely supported on shell 34 via output bearing 48,50.
Shell 34 is mainly made of such as lower component：Housing main body 53；Cover body shell 54, it is opposite in the load of housing main body 53
Input shaft 18 described in side bearing；Sidepiece shell 56, output body 46 described in the load side bearing in housing main body 53；End enclosure
58, close the axial end portion of the sidepiece shell 56.That is, cover body shell 54 forms a part for the shell 34 of deceleration device 12.
Input shaft 18 is by being supported on the input shaft bearing 60 of the load reverse side of the cover body shell 54 and being supported on described convex
The input shaft bearing 59 of the load-side of edge part 36 is supported by." axis of the input shaft bearing 60 of load reverse side equivalent to the present invention
Hold ".
Symbol 70 represents the oil sealing of the outlet side (load-side) for the lubricant being used in sealing shell 34, and symbol 72 represents defeated
Enter the oil sealing of side (load reverse side).In present embodiment, the present invention is suitable for the lubrication of the oil sealing 72 of input side.In addition, close
In lubricant, in this embodiment using oily (lubricating oil), but such as can also use lubricating grease.
Hereinafter, the structure near the oil sealing 72 of input side is described in detail.
In the embodiment, input shaft bearing 60 is made of the ball bearing with outer ring 60A, inner ring 60B and rolling element 60C.
Input shaft bearing 60 is the so-called sealing bearing that 72 side of oil sealing of rolling element 60C is shielded by seal member 60D.
Input shaft bearing 60 is limited mobile to axial device private side (to load-side) by baffle ring 74.Baffle ring 74 is more defeated than this
Enter the private side that bearing 60 more leans on deceleration device 12, be embedded in and be formed in and (form a part for shell 34) cover body shell 54
Circlip groove 54A, so as to be fixed in the axial direction.
Oil sealing 72 is configured at axially external (outer side of deceleration device 12) that input shaft 18 is more leaned on than input shaft bearing 60.This
It is because, it is necessary to can lubricate and (be located at and more lean on axial inner side than oil sealing 72) input shaft bearing 60 with the lubricant in shell 34
While lubricant is sealed in the shell 34.The oil sealing 72 of the embodiment has：Primary seal lip 72B, possesses spring
72A；Dustproof lip 72C, is configured at the axial device outer side of primary seal lip 72B.
The position press-in of the radially inner side equivalent to oil sealing 72 of input shaft 18 has axle sleeve 76, the primary seal lip of oil sealing 72
Respective sealing labial surface 72B1, the 72C1 of 72B and dustproof lip 72C is abutted with the periphery of the axle sleeve 76, thus in sealing shell 34
Lubricant.In addition, axle sleeve 76 is abutted with the inner ring 60B of input shaft bearing 60, the input shaft bearing 60 is limited to axial device outer side
(to load reverse side) is mobile.
In the embodiment, lubricant is enclosed to the foot 60A1 substantially phases of the outer ring 60A inner circumferentials with input shaft bearing 60
Same position (height).That is, position of the position of the liquid level Li1 of lubricant less than sealing labial surface 72B1,72C1 of oil sealing 72.Will
The position of the liquid level Li1 of lubricant is suppressed to the reason for so low and is, is with bias in deceleration device such as present embodiment
During the deceleration device (rotating device) 12 of the structure of 28 eccentric swing of body, if the eccentric body 28 or the grade of eccentric body bearing 32 are more
Lubricant is submerged in, then the resistance of eccentric swing becomes very large.In addition, the position of the liquid level Li1 of the lubricant is set to as follows,
That is the peripheral part 28A of the eccentric body 28 or retainer 32A of eccentric body bearing 32 will not sink when when eccentric body 28 is eccentric upward
Leaching, and it is eccentric downwards when immerse.In other words, such as it is to be understood that eccentric body 28 is played function as gomphosis part, it is described
Outside diameter (shape) L28A of gomphosis part with peripheral part 28A, the peripheral part 28A be more than from the axle center C18 of input shaft 18 to
Distance L (C18-Li1) untill the liquid level Li1 of lubricant.
On the other hand, cover body shell 54 has connection than the input shaft bearing 60 more by subtracting in the radial outside of input shaft bearing 60
Lubrication channel 78,79 of the space (the space P1 in shell 34) of the private side of speed variator 12 between oil sealing 72.Specifically,
In the embodiment, amount in the circumferential formed with lubrication channel at 2, i.e., cover body shell 54 input shaft bearing 60 upside
(radial outside) is formed in part with the lubrication channel 78 with inclined plane 78D described later, and in the downside of input shaft bearing 60, (footpath is outside
Side) it is formed in part with the lubrication channel 79 without inclined plane (with reference to figure 3).
As shown in figure 3, the square with the axis section of the lubrication channel 78 of upside is formed as reverse U shape.The shape for example can
(can also being formed using mold, so as to omit mechanical processing) is enough formed by general purpose tools such as slotting cutters (not shown).U-shaped
The section on the top of shape is formed by the circular arc 78C that radius is r78C.The single dotted broken line of Fig. 2 represents the center C78C of circular arc 78C
Circumferential position axially.
As shown in Fig. 2, the lubrication channel 78 of upside has relative to the inclined inclined plane of input shaft 18 (axle center C18)
78D.Specifically, inclined plane 78D relative to input shaft 18 axle center C18 only cant angle theta 78D, from the axle center C18 of the input shaft 18
Size L78D untill inclined plane 78D (specifically, untill the topmost of the circular arc 78C on each axial location) is with court
To axially external (device outer side：Load reverse side) and diminish.
It is corresponding, lubrication channel 78 in cover body shell 54 to be formed radially width W78 also and uneven, tilting
Near the beginning 78D1 (entrance of lubrication channel 78) of face 78D, the width W78 that is formed radially of lubrication channel 78 is maximum
W78D1.Also, near the end 78D2 of inclined plane 78D, lubrication channel 78 is formed radially width W78 (to be less than W78D1
) W78D2 (W78D1 ＞ W78D2).In addition, in the embodiment, the end 78D2 of inclined plane 78D refers to " with input shaft 18
The angle that axle center C18 is in is less than the face (channel outlet port described later for the angle theta 78D that inclined plane 78D and axle center C18 is in
The inner peripheral surface of 78E) and inclined plane 78D point of contact ".
The beginning 78D1 of inclined plane 78D is located at than baffle ring 74 more to the side close size L (78D1-74) opposite with oil sealing
Position, the end 78D2 of inclined plane 78D is located at than baffle ring 74 more to the position of the close size L (78D2-74) in 72 side of oil sealing.
That is, the beginning 78D1 of inclined plane 78D is located at than baffle ring 74 more by the position with oil sealing opposite side, the end of inclined plane 78D
78D2 is located at the position that 72 side of oil sealing is more leaned on than baffle ring 74.
In addition, the end 78D2 than inclined plane 78D more leans on axially external lubrication channel 78 along the outer of input shaft bearing 60
Enclose the periphery of 60A and formed and form channel outlet port 78E.Channel outlet port 78E " the center C78C of circular arc 78C " is than defeated
Enter the outside diameter of outer ring 60A of bearing 60 further into radially inner side.That is, the circular arc 78C of the channel outlet port 78E of lubrication channel 78 is small
In semicircle (half cycle) (with reference to the circular arc (78C) of the downside of figure 3).In addition, untill the end 78F of baffle ring 74 and lubrication channel 78
Size is L (78F-74).
Oil sealing 72 is configured to, than end 78F (device private side) entrance more into lubrication channel 78 of the lubrication channel 78
Dimension delta L72, can more effectively receive along lubrication channel 78 and come lubricant.
In addition, the lubrication channel 79 of downside also has the structure identical with the lubrication channel 78 of above-mentioned upside.But downside
Lubrication channel 79 in, by the function that need not have guides the lubricant received (spittle) to 72 side of oil sealing,
(lubrication channel 78 of upside is formed at be formed without) the inclined plane 78D.
In addition, symbol 80 is arranged in the axis between the inner ring 60B of input shaft bearing 60 and starting of oscillation component 30 (eccentric body 28)
Set.
Then, the effect to the eccentric oscillating-type deceleration device 12 illustrates.
If the input shaft 18 of deceleration device 12 is rotated by the rotation of motor drive shaft (not shown), via key 26 and input
The starting of oscillation component 30 that axis 18 links is rotated.If starting of oscillation component 30 rotates, the integrally formed bias with the starting of oscillation component 30
Body 28 is rotated.
If eccentric body 28 rotates, via eccentric body bearing 32, external gear 16 carries out eccentric swing rotation.Due to external gear
16 with 14 internal messing of internal gear, therefore by the swing rotary of the external gear 16, engaging for external gear 16 and internal gear 14 occurs
The phenomenon that position deviates successively.
Thus, input shaft 18 often rotates once, and external gear 16 is rotated against relative to the internal gear 14 in stationary state
(rotation) amount corresponding with the number of teeth difference of internal gear 14, i.e., " 1 tooth amount ".The rotation component is via roller member 40 and pin member 38
The vibrating part 36 for the axial side for being configured at external gear 16 is transferred to, makes output shaft assembly 44 integrated with vibrating part 36
Rotated.As a result, it is possible to realize equivalent to (internal gear 14 and the number of teeth of external gear 16 are poor：It is 1)/(external gear in this example
16 number of teeth) speed reducing ratio deceleration.
Wherein, the oil sealing 72 of input shaft 18 is configured at the axially external position that the input shaft 18 is more leaned on than input shaft bearing 60
Put.Also, in order to suppress the increase of the swing resistance of eccentric body 28, the liquid level Li1 of lubricant is set at less than the oil sealing 72
The sealing labial surface 72B1 of primary seal lip 72B.Therefore, because oil sealing 72 is located at the axially external of input shaft bearing 60, therefore, moistened in the past
Lubrication prescription can not be substantially arrived on the sealing labial surface 72B1 of the oil sealing 72, there are it is easy to wear the problem of.
But in the present embodiment, shell 34 (cover body shell 54) has in the radial outside of input shaft bearing 60 to be connected
Lead to than the input shaft bearing 60 more by the lubrication channel 78,79 between the space P1 and oil sealing 72 of device private side.It is moreover, therein
The lubrication channel 78 of upside has relative to the inclined inclined plane 78D of input shaft 18.
Thus, for example the eccentric swing of the peripheral part 28A for passing through eccentric body 28 splashes to the lubrication channel 78 of upside
Immediately below the lubricant of entrance (near the beginning 78D1 of inclined plane 78D) will not directly be fallen to, but can be along this
Inclined plane 78D reaches 72 side of oil sealing while downlink in lubrication channel 78 around input shaft bearing 60.
Also, since the end 78D2 of inclined plane 78D is located at than baffle ring 74 more by the position of 72 side of oil sealing, thus lubricate
Agent becomes the opposite side of oil sealing (axial device private side) for by the 74 of the baffle ring forms stopped, preventing from returning to input shaft bearing 60.
Therefore, (although the position of the liquid level Li1 of lubricant is less than structure of the sealing labial surface 72B1 of oil sealing 72), the profit in shell 34
Lubrication prescription can be guided to oil sealing 72 across input shaft bearing 60.
In other words, while the lubrication of sealing labial surface 72B1 of oil sealing 72 can be well maintained, by the liquid level of lubricant
The position of Li1 is maintained the sealing labial surface 72B1 less than oil sealing 72.Therefore, it is possible to suppressing because of eccentric body 28 (starting of oscillation component 30) or
The increase of the stirring resistance of lubricant caused by the swing of eccentric body bearing 32, and the enclosed volume of lubricant can also be reduced.
Also, especially in this embodiment, there are the inclined of deceleration device 12 near the beginning 78D1 of lubrication channel 78
Heart body 28.Eccentric body 28 carries out eccentric swing in following location, and lubrication will not be impregnated in when the eccentric body 28 is eccentric upward
Agent, and it is eccentric downwards when the position that impregnates.Therefore, when swinging every time, the outer weekly assembly disengaging lubricant of eccentric body 28, thus, it is possible to
Lubricant is enough set effectively to splash near the beginning 78D1 of lubrication channel 78.
Also, in present embodiment, as input shaft bearing 60 using the axially external by seal member 60D of rolling element 60C
The sealing bearing of shielding.The lubricant come therefore, it is possible to avoid taking place along the outside of the outer ring 60A of input shaft bearing 60 along
The end of oil sealing side in the axial direction of outer ring 60A and the phenomenon that enters the space P2 sides that there are rolling element 60C (that is, does not flow
To the phenomenon of oil sealing side).
Also, the lubrication channel 78 involved by present embodiment can be by the general work mechanism such as slotting cutter simply
Formed (or can also be formed using casting mold, so as to omit mechanical processing), therefore cost is relatively low.Also, on as lubrication
The baffle ring 74 that " dykes and dams " of agent play a role, is the component set to limit the axial movement of input shaft bearing 60 originally, because
This will not cause the increase of component number of packages, can also realize low cost in this.
The variation of the above embodiment is shown in Fig. 4.
In deceleration device 12 (rotating device) involved by the variation, except embodiment before axle sleeve 80 it
Outside, also have be embedded in input shaft 18 to sweep blade (gomphosis part) 90.
This sweeps blade 90 and is made of endless member, it possesses peripheral part 92, and the peripheral part 92, which has, to be more than from input
Outside diameter (radius) r90 of distance Ls (C18-Li1) of the axle center C18 of axis 18 untill the liquid level Li1 of lubricant.That is, blade is swept
90 part is submerged in lubricant.Also, this is swept in blade 90, private side of the peripheral part 92 from deceleration device 12
It is inclined upwardly (outside diameter r90 becomes larger) towards outer side.
Other structures are identical with embodiment before, therefore identical or functionally similar position is assigned in figure
Identical symbol, and omit repeat specification.
According to the embodiment, when sweeping blade 90 and input shaft 18 rotates together with, lubricant is with sweeping blade 90
Rotation is together swept, and along the acclivity of peripheral part 92 and to be swept beginning 78D1 to lubrication channel 78 attached
Closely.Therefore, it is possible to realize foregoing effect more well, and lubricant more efficiently can be oriented to 72 side of oil sealing.
In addition, in the present invention, the not necessarily necessary component of blade is swept, can also not sweep blade.Also,
When setting sweeps blade, shape is also not limited to above-mentioned shape, such as can be by setting some bumps to be set to be more easy on surface
Scrape the shape of super fatting agent.
Also, in the embodiment, dedicated (component separated with input shaft) fitting portion is configured with as blade is swept
Part, but the component that gomphosis part is not necessarily separated with input shaft.I.e., it is possible to it is and the integrated component of input shaft.Alternatively,
Can also be alternative to sweep blade by the component in addition to input shaft.As has been described, for embodiment before, if changed
Become view, then it will be appreciated that to make starting of oscillation component (or eccentric body) itself as the gomphosis part performance for having the function of that this sweeps
The example of effect.
Also, from this viewpoint, such as it is configured to, (in order to have the function of preferably to sweep) is by the axis of eccentric body
Be formed as bigger to width (closer to the starting point of the inclined plane of lubrication channel).Moreover, in eccentric oscillating-type deceleration device,
It is also known that only have the device of 1 external gear, but at this time, the dynamic equilibrium of swing rotary in order to obtain, be generally arranged at
There is the balance weight of center of gravity on the opposite direction of the eccentric direction of eccentric body.At this time, can be used as the balance weight " has and sweeps work(
The gomphosis part of energy " plays a role.The rotation that balance weight is readily designed to input shaft in structure together passes in and out lubricant, because
This can make it play a role well as " having the function of the gomphosis part swept ".
Also, in the above-described embodiment, employed as input shaft bearing and be configured with the sealing of seal member in oil sealing side
Bearing, and be configured to avoid along the outer ring of input shaft bearing entering along lubrication channel and next lubricant to there are rolling element
Space side.But the structure is also not necessarily necessary structure.For example, in the structure of rotating device, lubricant can be expected
During effect by flowing to oil sealing side between the outer ring of bearing and inner ring, the axis there is no seal member can be used as bearing
Hold.
In addition, in the above-described embodiment, the present invention is suitable for eccentric oscillating-type deceleration device, but the present invention can fit
Rotating device is not limited to this deceleration device, can be suitable for inclusion in the rotation of various speeders or geared system
Device.
Also, in the above embodiment, the present invention is suitable for the lubrication of the oil sealing of input shaft.The present invention is suitable for turning
During the lubrication of the oil sealing of fast faster input shaft, obvious action effect can be obtained, but " axis " according to the present invention is simultaneously
Input shaft is not limited to, such as can also be output shaft.
Claims (4)
1. a kind of rotating device, it possesses：It is sealed with the shell of lubricant, the axis through the shell, is configured at the axis and shell
Between the axis bearing and oil sealing, the rotating device is characterized in that,
The oil sealing is configured at more leans on the axially external of the axis than the bearing,
The axial movement of the bearing is limited by baffle ring, and the baffle ring is more leaning on the private side of the rotating device than the bearing
The circlip groove of the shell is embedded in,
The shell has lubrication channel in the radial outside of the bearing, and lubrication channel connection more leans on the rotation than the bearing
Between the space of the private side of rotary device and the oil sealing,
The lubrication channel has relative to the inclined inclined plane of the axis,
The end of the inclined plane is presented axially in more leans on the oil sealing side than the baffle ring,
The rotating device has the gomphosis part for being embedded in the axis,
The gomphosis part has peripheral part, and the outside diameter of the peripheral part is more than from the axle center of the axis to the liquid level of the lubricant
Untill distance.
2. rotating device according to claim 1, it is characterised in that
The liquid level of the lubricant is less than the sealing labial surface of the oil sealing.
3. rotating device according to claim 1 or 2, it is characterised in that
The rotating device is the eccentric oscillating-type deceleration device possessed such as lower component：Internal gear；External gear, the external gear are swung
While with the internal gear internal messing；And the axis, the axis have the eccentric body for being used for swinging the external gear,
The gomphosis part is the eccentric body of the eccentric oscillating-type deceleration device.
4. rotating device according to claim 1 or 2, it is characterised in that
The gomphosis part is made of endless member, and the private side of the peripheral part from the rotating device is lateral towards outside
Upper inclination.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014060986A JP6182487B2 (en) | 2014-03-24 | 2014-03-24 | Rotating device |
| JP2014-060986 | 2014-03-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104948720A CN104948720A (en) | 2015-09-30 |
| CN104948720B true CN104948720B (en) | 2018-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510039594.1A Active CN104948720B (en) | 2014-03-24 | 2015-01-26 | Rotating device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6182487B2 (en) |
| KR (1) | KR101681249B1 (en) |
| CN (1) | CN104948720B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6588374B2 (en) * | 2016-03-31 | 2019-10-09 | 住友重機械工業株式会社 | Rotating device |
| JP6723657B2 (en) | 2016-12-05 | 2020-07-15 | 住友重機械工業株式会社 | Reducer |
| JP6730680B2 (en) * | 2016-12-27 | 2020-07-29 | 三菱自動車エンジニアリング株式会社 | Drive machine case |
| JP6811634B2 (en) | 2017-02-10 | 2021-01-13 | 住友重機械工業株式会社 | Planetary gear device |
| JP6767290B2 (en) * | 2017-03-10 | 2020-10-14 | 住友重機械工業株式会社 | Planetary gear device |
| CN107620793B (en) * | 2017-09-19 | 2024-01-12 | 中国第一汽车股份有限公司 | Through shaft unit structure |
| CN113374858B (en) * | 2021-07-15 | 2023-02-28 | 中信重工机械股份有限公司 | Gear pair for grinding machine |
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| JPH11182655A (en) * | 1997-12-17 | 1999-07-06 | Mitsubishi Motors Corp | Lubrication structure of final reduction gear unit |
| JP2001221327A (en) * | 2000-02-08 | 2001-08-17 | Honda Motor Co Ltd | Lubricating structure of bearing part for output shaft in transmission |
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- 2015-01-26 CN CN201510039594.1A patent/CN104948720B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727724A (en) * | 2004-07-27 | 2006-02-01 | 住友重机械工业株式会社 | Reducer with internally meshing planetary gear mechanism and device incorporating the reducer |
| CN2918898Y (en) * | 2006-05-16 | 2007-07-04 | 重庆减速机厂有限责任公司 | Horizontal speed-reducer corner tooth transmission device |
| CN101839213A (en) * | 2009-03-16 | 2010-09-22 | 住友重机械工业株式会社 | The speed reducer that the deviation drive device of wind-driven generator is used |
| CN202338628U (en) * | 2011-11-17 | 2012-07-18 | 湖南中联重科车桥有限公司 | Lubrication system for main speed reducer of automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104948720A (en) | 2015-09-30 |
| KR20150110304A (en) | 2015-10-02 |
| JP2015183780A (en) | 2015-10-22 |
| JP6182487B2 (en) | 2017-08-16 |
| KR101681249B1 (en) | 2016-11-30 |
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