CN107269817A - Rotating device - Google Patents
Rotating device Download PDFInfo
- Publication number
- CN107269817A CN107269817A CN201710131136.XA CN201710131136A CN107269817A CN 107269817 A CN107269817 A CN 107269817A CN 201710131136 A CN201710131136 A CN 201710131136A CN 107269817 A CN107269817 A CN 107269817A
- Authority
- CN
- China
- Prior art keywords
- oil sealing
- inclined plane
- input shaft
- shell
- rotating device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- F16H57/04—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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
-
- 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
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
-
- 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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/061—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing mounting a plurality of bearings side by side
-
- 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
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
-
- 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
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
-
- 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
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/10—Force connections, e.g. clamping
- F16C2226/12—Force connections, e.g. clamping by press-fit, e.g. plug-in
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Abstract
The present invention provides a kind of rotating device being lubricated more well to the oil sealing of rotating device.A kind of rotating device (12) possesses：Shell (40) (load reverse side shell body (44))；Rotary shaft (16), is rotated against relative to the shell；Bearing (20), is configured between shell and rotary shaft；Collar (22), rotary shaft is embedded in outside position more more outward in the axial direction than the bearing；Oil sealing (24), is configured between shell and collar；And lubricant, enclose in the inside of shell, wherein, collar (22) has the 1st inclined plane (22A), and the external diameter (d22A) of the 1st inclined plane (22A) becomes big from bearing side towards oil sealing side.
Description
The application advocates the priority based on Japanese patent application filed in 31 days March in 2016 the 2016-073569th.
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 rotating device disclosed in patent document 1, it possesses shell and rotated against relative to the shell
Rotary shaft.Bearing is configured between shell and rotary shaft.Outside rotary shaft position more more outward in the axial direction than the bearing
It is embedded with collar.Oil sealing is configured between shell and collar, oil sealing is sealed to the lubricant enclosed in enclosure.
Patent document 1：Japanese Unexamined Patent Publication 2015-183780 publications
In the rotating device with above-mentioned sealing structure, oil sealing may not be lubricated well sometimes in itself, existed and changed
Kind space.
The content of the invention
The present invention completes to solve this problem, and its problem is can be more well to rotating device
Oil sealing is lubricated.
The present invention solves above-mentioned problem by following structure, i.e. a kind of rotating device, it possesses：Shell；Rotary shaft, phase
Rotated against for the shell；Bearing, is configured between the shell and the rotary shaft；Collar, than the axle
Hold and be embedded in the rotary shaft outside position more outward in the axial direction；Oil sealing, is configured between the shell and the collar；And
Lubricant, is enclosed in the inside of the shell, wherein, the collar has the 1st inclined plane, the external diameter of the 1st inclined plane from
The bearing side becomes big towards the oil sealing side.
In the present invention, the collar of rotary shaft is embedded in outside, and there is external diameter to become the 1st big inclination from bearing side towards oil sealing side
Face.It therefore, it can by the 1st inclined plane and guided the lubricant near collar to oil sealing side using centrifugal force.It is tied
Really, oil sealing can be lubricated more well.
In accordance with the invention it is possible to be lubricated more well to the oil sealing of rotating device.
Brief description of the drawings
Fig. 1 is the integrally-built sectional view for representing the rotating device involved by one of embodiments of the present invention.
Fig. 2 is the major part amplification view of Fig. 1 signified parts of arrow II.
Fig. 3 is the sectional view along Fig. 2 arrow III-III lines.
Fig. 4 is the curve map of the relation between the liquid level for the liquid level for representing lubricant and the lubrication property of oil sealing.
Fig. 5 is the enlarged partial sectional view of occupation mode when representing longitudinal use Fig. 1 rotating device.
In figure：12- rotating devices, 16- rotary shafts, 20- input shaft bearing, 22- collars, the inclined planes of 22A- the 1st, d22A- the 1st
The external diameter of inclined plane, 24- oil sealings, the liquid level of 26- lubricants, 40- shells, 44- load reverse side shell bodies.
Embodiment
Hereinafter, one of embodiments of the present invention is described in detail with reference to the accompanying drawings.
Fig. 1 is the integrally-built sectional view for representing the rotating device involved by one of embodiments of the present invention, Fig. 2
It is the major part amplification view of Fig. 1 signified parts of arrow II.Also, Fig. 3 is cuing open along Fig. 2 arrow III-III lines
View.
For outline, the rotating device 12 possesses shell 40 and the input shaft rotated against relative to the shell 40
(rotary shaft) 16.Fig. 1~Fig. 3 embodiment represents the horizontal situation using during the rotating device 12, i.e., match somebody with somebody input shaft 16
It is set to situation about being used under horizontal state (or close to horizontal state).Therefore, input shaft 16 is configured to level, lubricant
Liquid level 26 it is parallel with input shaft 16.
Input shaft bearing 20 is configured between shell 40 and input shaft 16.Than input shaft bearing 20 in the axial direction more outward
Input shaft 16 is embedded in outside side, collar 22.Oil sealing 24 is configured between shell 40 and collar 22.It is sealed with the inside of shell 40
Lubricant (only represents liquid level 26) in figure.Collar 22 has a 1st inclined plane 22A, and the 1st inclined plane 22A outside diameter d 22A is from defeated
Enter the side of bearing 20 and become big towards the side of oil sealing 24.
Hereinafter, it is described in detail.
The rotating device 12 possesses reducing gear 32 and accommodates the shell 40 of the reducing gear 32.
The reducing gear 32 of rotating device 12 is made up of eccentric oscillating-type planetary gear mechanism.
Reducing gear 32 possesses：Input shaft (rotary shaft) 16, receives the power from motor (not shown)；Eccentric body 52,
It is integrated with the input shaft 16 and with two eccentric part 52A via key 50；Eccentric body bearing 54, is assembled in the eccentric body 52
Eccentric part 52A periphery；External gear 56, is assembled in the periphery of the eccentric body bearing 54；And internal gear 58, with the external gear
56 internal messings.
Internal gear 58 is made up of internal tooth wheel body 60, columned fulcrum post 62 and outer roller 64, the internal tooth wheel body 60
Integrated with shell 40 (housing main body 41 described later), the columned fulcrum post 62 is supported on the internal tooth wheel body 60,
The outer roller 64 is rotatably outer to be embedded in the fulcrum post 62 and constitutes the internal tooth of internal gear 58.The interior number of teeth of internal gear 58
(quantity of outer roller 64) somewhat has more the outer number of teeth (two are had more in the example) of external gear 56.In addition, the axle center of internal gear 58
C58 is consistent with the axle center C16 of input shaft 16 and the axle center C72 of output shaft 72.
External gear 56 has external gear through hole 58A in the position of the axle center C56 skews from the external gear 56.In external gear
Columned domestic 66 are embedded with through hole 58A.Interior roller 68 is sliding freely embedded with outside as slip promotion division domestic 66
Part.A part for interior roller 68 is abutted with external gear through hole 58A.The external diameter of interior roller 68 is less than external gear through hole 58A internal diameter,
Twice of the gap of offset for having equivalent to eccentric part 52A is ensured between interior roller 68 and external gear through hole 58A.Domestic 66
It is pressed into flange shape wheel carrier 70.Wheel carrier 70 is integrated with output shaft 72.
In the reducing gear 32 of said structure, the rotation of input shaft 16 via eccentric body 52 eccentric part 52A, eccentric body
Bearing 54 and swing external gear 56.By the swing, external gear 56 is rotated against relative to internal gear 58.The relative rotation
Turn to export from wheel carrier 70 via interior roller 68 and domestic 66, so that the output shaft 72 integrated with the wheel carrier 70 is rotated in deceleration.
On the other hand, the shell 40 of rotating device 12 possesses：Housing main body 41, accommodates reducing gear 32；Load-side shell
Body 42, accommodates the part that load-side is more leaned on than reducing gear 32；Load reverse side shell body 44, receiving is more leaned on than reducing gear 32
Part with loading opposite side；And cover body 46, the load-side end face of closing load-side shell body 42.
The housing main body 41 of shell 40 is integrated with the internal tooth wheel body 60, and in the radially inner side of housing main body 41
Accommodate reducing gear 32.The load-side shell body 42 of shell 40 supports output shaft 72 via a pair of taper roll bearings 74,76.It is defeated
Shaft 72 is protruded from the cover body 46 of shell 40.It is outer on output shaft 72 to be embedded with collar 78.Configured between cover body 46 and collar 78
There is oil sealing 80.
The load reverse side shell body 44 of shell 40 possesses circular-plate-shaped flange portion 44A and bearing housing portion 44B, the bearing
Receiving portion 44B is prominent to the side opposite with load relative to flange part 44A and after accommodating in flange part 44A inner circumferential side
The input shaft bearing 20 for the supporting input shaft 16 stated.Housing main body 41, load-side shell body 42 and load reverse side shell body 44
Tightened together in the axial direction by binder bolt 45.
Collar 22 is embedded with outside input shaft 16.Also, it is configured with oil between load reverse side shell body 44 and collar 22
Envelope 24.
Hereinafter, Fig. 2 pairs of Primary Reference and the rotating device 12 be configured at load reverse side shell body 44 and collar 22 it
Between the relevant structure of lubrication of oil sealing 24 be described in detail.
Input shaft bearing 20 is configured between shell 40 (load reverse side shell body 44) and input shaft 16 (rotary shaft).
Here, input shaft bearing 20 is made up of the ball bearing with rolling element 20A, outer ring 20B and inner ring 20C.In load reverse side shell
The position adjacent with the outer ring 20B of input shaft bearing 20 of body 44 is embedded with back-up ring 82.
The position more more outward in the axial direction than the input shaft bearing 20 of input shaft 16 is embedded in outside collar 22.Here, " than defeated
Enter bearing 20 more outward in the axial direction " refer to, in the axial direction of input shaft 16, it is located at relative to input shaft bearing 20 and internal gear
58 the axially opposite A58 side in center (when from the axial center A58 of internal gear 58, more farther than input shaft bearing 20 one
Side).In addition, " than input shaft bearing 20 in the axial direction more in the inner part " refers to, in the axial direction of input shaft 16, relative to input shaft bearing
20 are located at the axially center A58 identicals side with internal gear 58 (when from the axially center A58 of internal gear 58, than input
Bearing 20 closer to side).In other words, it is inner side close to the side of the receiving space of reducing gear 32, away from reducing gear 32
Receiving space side be outside.
There is oil sealing to pass through for end of the load reverse side shell body 44 of shell 40 in the axial direction of the bearing housing portion 44B
Perforate 44P.Oil sealing 24 is configured between the oil sealing through hole 44P and collar 22.
Collar 22 is by being embedded in input shaft 16 outside press-in and being rotated integrally with input shaft 16.Collar 22 is formed as overall wall thickness
Thicker ring-type.There is outside diameter d 22A from the side court of input shaft bearing 20 in the periphery axially closer to the side of input shaft bearing 20 of collar 22
Become the 1st big inclined plane 22A to the side of oil sealing 24.Collar 22 in the 1st inclined plane 22A axial direction outside (in the axial direction with
The opposite side of input shaft bearing) there is the oil sealing mounting portion 22B parallel with the axle center C16 of input shaft 16.Also, collar 22 is at this
The end of the side of input shaft bearing 20 in 1st inclined plane 22A axial direction has the protuberance 22C prominent to radial outside.
In the rotating device 12, the 1st inclined plane 22A of collar 22 is formed as outside diameter d 22A with comprising input shaft 16
Section (the section of the paper equivalent to Fig. 1, Fig. 2 of axle center C16 plane cutting：Hereinafter referred to as axle center section) on from input
The side of bearing 20 is towards the side of oil sealing 24 linearly to become big cone shape.In this example embodiment, the 1st inclined plane on the section of axle center
22A is set to 30 degree relative to the axle center C16 of input shaft 16 gradient θ 1.
In addition, the 1st inclined plane 22A concrete shape is not particularly limited as the shape.For example, it is also possible to be set to external diameter
D22A becomes big shape from the side of input shaft bearing 20 towards the side of oil sealing 24 on the section of axle center with curve-like (including circular arc).Now,
Can be the curve (outside diameter d 22A Magnification is with the curve tapered into close to oil sealing 24) protruded to upside, or can also
It is the curve protruded to downside (outside diameter d 22A Magnification is with the curve become larger close to oil sealing 24).The protrusion of collar 22
Be formed as vertical with the axle center C16 of input shaft 16 with the end face 22C1 of input shaft bearing opposite side in portion 22C axial direction.The end face
22C1 and the 1st inclined plane 22A are continuous.In other words, on the section of axle center, it is formed with the periphery of collar 22 by end face 22C1
With the groove 22F of the V-shaped of the 1st inclined plane 22A formation.It has been observed that the 1st inclined plane 22A is relative to the axle center C16's of input shaft 16
Gradient θ 1 is 30 degree, therefore the shapes of the V-shaped groove 22F on the section of axle center is equivalent to the shape of the half of equilateral triangle.
Oil sealing 24 is configured at the oil sealing mounting portion 22B of collar 22 and the oil sealing through hole 44P of load reverse side shell body 44
Inner circumferential between.
Oil sealing 24 possesses fitting portion 24A, back part 24B and main lip 24C, and it is substantially in "U" font that it is overall.It is embedding
Conjunction portion 24A is formed as the ring-type parallel with input shaft 16, and it is crimped on the oil sealing through hole 44P's of load reverse side shell body 44
Inner circumferential.Back part 24B prolongs from the fitting portion 24A inner side that is radially oriented in the axial direction with the end of input shaft bearing opposite side
Stretch.Main lip 24C extends from back part 24B radially inner side end towards the side of input shaft bearing 20 on axial direction, and close
Seal point 24C1 is abutted with the oil sealing mounting portion 22B of collar 22.Main lip 24C is by force application spring 24D to oil sealing mounting portion 22B sides
Force.
The fitting portion 24A of oil sealing 24 more extends L (24A-24C) than main lip 24C to the side of input shaft bearing 20 on axial direction, from
When radially observing, fitting portion 24A L (24A-22A) overlapping with the 1st inclined plane 22A.In other words, the 1st inclined plane 22A is to oil sealing 24
The radially inner side of (fitting portion 24A) enters L (24A-22A).
In addition, the end face 22E of the side of input shaft bearing 20 of collar 22 is abutted with the stage portion 16E of input shaft 16, so as to carry out
Positioning of the collar 22 relative to input shaft 16.Also, the end face 22E of the side of input shaft bearing 20 of collar 22 also with input shaft bearing 20
The end face 20C1 of the side of oil sealing 24 in inner ring 20C axial direction is abutted, so as to carry out the positioning of input shaft bearing 20 in the axial direction.
Input shaft bearing 20 side of the load reverse side shell body 44 of shell 40 in the axial direction of oil sealing 24 has inside to footpath
The limiting unit 44H that side is protruded and limitation oil sealing 24 is moved to the side of input shaft bearing 20 vertically.
In the rotating device 12, shell 40 (load reverse side shell body 44) is with limiting unit 44H with identical material one
Formed body.But, shell 40 and limiting unit 44H, can also be with different materials without being necessarily integrally formed with identical material
Formed, for example, the back-up ring for being embedded in shell 40 can be provided integrally with as limiting unit.
It is clear that there is breach 47 in the parts of limiting unit 44H in the circumferential by Fig. 3.Specifically, from the limit
Topmost 44H1 in portion 44H processed vertical along the circumferential direction somewhat (specifically 30 degree) separated circumferential positions
44H2,44H3 inner circumferential are formed with two breach 47.In other words, limiting unit 44H is more leaned in the axle center C16 than input shaft 16
Top in vertical has two breach 47.
More specifically, in the section (section of paper equivalent to Fig. 3 vertical with input shaft 16：Hereinafter referred to as axle hangs down
Straightforward face) on, limiting unit 44H breach 47 has：A pair of radial wall 47A, cut from limiting unit 44H inner circumferential normal direction
Enter；A pair of circular arc wall 47B, continuously in the radial outside end of a pair of radial wall 47A and direction bending close to each other
And formed；And circumferential wall 47C, connect a pair of circular arc wall 47B.In addition, in the rotating device 12, circumferential wall 47C from
The axle center C16 of input shaft 16 formation radius R47C and the oil sealing through hole 44P of load reverse side shell body 44 from input shaft
16 axle center C16 radius D44P is identical.
Limiting unit 44H breach 47 is formed with this cross sectional shape from the side of input shaft bearing 20 in limiting unit 44H axial direction
To the side of oil sealing 24, and be formed as parallel with input shaft 16.The radial wall 47A's of limiting unit 44H breach 47 amounts to four shapes
Constituted into top portion 47A1~47A4 make along the lubricant of limiting unit 44H inner circumferential 44H4 flowings from formation top portion 47A1~
" drop point " that 47A4 drops to the lower section in vertical, from the lubrication without allowing the inner circumferential 44H4 along limiting unit 44H to flow
Agent continues to flow to downside along inner circumferential 44H4.
Input shaft bearing 20 side of the load reverse side shell body 44 of shell 40 in the axial direction of oil sealing 24 has internal diameter D44G
The 2nd inclined plane 44G diminished from the side of input shaft bearing 20 towards the side of oil sealing 24.2nd inclined plane 44G is by part 1 44G1 and the 2nd
44G2 is divided to constitute, part 1 44G1 is equivalent to load reverse side shell body 44 (than limiting unit 44H in the axial direction more by input
The region of the side of bearing 20) inner circumferential 44F, the side end face of input shaft bearing 20 in axial directions of the part 2 44G2 equivalent to limiting unit 44H
44H5。
That is, the internal diameter of the side end face 44H5 of input shaft bearing 20 in limiting unit 44H axial direction is also from the side direction of input shaft bearing 20
The side of oil sealing 24 diminishes, and the limiting unit 44H of the shell 40 side end face 44H5 of input shaft bearing 20 constitutes a 2nd inclined plane 44G part
(part 2 44G2).That is, the 2nd inclined plane 44G end (the minimum part of internal diameter) 44G3 and limiting unit 44H input shaft bearing
20 side end face 44H5 most inner peripheral portion is consistent.
When from radially, the 2nd inclined plane 44G end 44G3 is overlapping with the 1st inclined plane 22A.In other words, the 2nd inclines
Inclined-plane 44G end 44G3 is present in the 1st inclined plane 22A axial range.
In this example embodiment, on the section of axle center, the gradient for the 2nd inclined plane 44G relative to the axle center C16 of input shaft 16
For θ 2, part 1 44G1 and part 2 44G2 are set to 60 degree.That is, part 1 44G1 and the 2nd of the 2nd inclined plane 44G
Divide 44G2 continuous in the state of identical gradient θ 2 is maintained.2nd inclined plane 44G (=60 degree) of gradient θ 2 is more than the 1st and tilted
Face 22A gradient θ 1 (=30 degree).Also, the 2nd inclined plane 44G extended end 44G4 is present in the 1st inclined plane 22A of collar 22
On, the 2nd inclined plane 44G and the 1st inclined plane 22A square crossings.
The liquid level (inclosure liquid level) of the liquid level 26 of the lubricant of rotating device 12 be set in than input shaft 16 axle center C16 more
The position in vertical that a part by the lower section in vertical and the rolling element 20A of input shaft bearing 20 can impregnate
(specifically, in this example embodiment for from the position in the low 45mm of axle center C16 of input shaft 16 vertical).
In addition, being provided with seal member 88 in the rolling element 20A of input shaft bearing 20 side opposite with oil sealing.Also,
Have in the liquid level 26 of the ratio lubricant of load reverse side shell body 44 more by the lower section in vertical and in outer ring 20B outside
Have the 1st lubricant passageway 91, the 1st lubricant passageway 91 connect more leaned on than input shaft bearing 20 with the space of oil sealing opposite side and
The space of the side of oil sealing 24 is more leaned on than input shaft bearing 20.1st lubricant passageway 91 is in the downside of input shaft bearing 20 with parallel with axle
Mode is simply formed with one, and radially rises to the vicinity of collar 22 in the side of oil sealing 24 of the input shaft bearing 20.In load
The position on the top equivalent to outer ring 20B of opposite side shell body 44, the 2nd lubrication is formed with the mode parallel with input shaft 16
Agent passage 92.The 3rd lubricant passageway 93 being radially formed from the outer circumferential side of load reverse side shell body 44 collaborates in the 2nd profit
Lubrication prescription passage 92.
Then, the effect to the rotating device 12 is illustrated.
In the rotating device 12, between shell 40 (load reverse side shell body 44) and input shaft 16 (rotary shaft)
Be configured with input shaft bearing 20, be embedded in outside position more more outward in the axial direction than the input shaft bearing 20 collar 22 of input shaft 16 with
Oil sealing 24 is configured between shell 40.
In the rotating device 12 of this structure, (in the case where not being designed specially) is sometimes because of lack of lubrication
Scorification or damage occur on oil sealing 24, it turns into the main cause of oil leak.
It is that will enclose lubricant inside the shell 40 of rotating device 12 to the lubrication most efficient method of oil sealing 24
The higher liquid level for the degree that the part that the liquid level of liquid level 26 is set to such as oil sealing 24 can be sufficiently impregnated.But, if will profit
The liquid level 26 of lubrication prescription is maintained higher, then with the rotation of reducing gear 32, and lubricant, which is stirred, causes power loss to become big, and
And can also produce just in case oil sealing 24 occur unfavorable condition then lubricant from oil sealing through hole 44P leak into outside amount can accordingly increase
Plus new problem.It is therefore preferable that making the liquid level 26 of lubricant is not influenceing the rotating device 12 including the lubrication of oil sealing 24
Relatively low liquid level is maintained in the range of the lubrication property of each part as far as possible.
In the rotating device 12, collar 22 there is external diameter to become the big 1st towards the side of oil sealing 24 from the side of input shaft bearing 20 incline
Inclined-plane 22A.It therefore, it can to utilize by running to up to the lubricant on the 1st inclined plane 22A of collar 22 for reducing gear 32
Centrifugal force when input shaft 16 rotates guides the outside (side of oil sealing 24) to axial direction.As a result, even in by the liquid of lubricant
Face 26 maintain it is relatively low in the state of, also preferably oil sealing 24 can be lubricated, so as to suppress scorification or the damage of oil sealing 24
It is bad, it can further suppress to produce oil leak.
Especially, in the rotating device 12, there is shell 40 internal diameter D44G to become from the side of input shaft bearing 20 towards the side of oil sealing 24
The 2nd small inclined plane 44G, and when from radially, the 2nd inclined plane 44G end 44G3 is overlapping with the 1st inclined plane 22A.
Thus, it is possible to the lubricant for the inner peripheral surface of shell 40 (the 2nd inclined plane 44G) being splashed and being attached to by the rotation of input shaft bearing 20
Guided along the 2nd inclined plane 44G to the 2nd inclined plane 44G end 44G3, and then be effectively moved into the 1st inclined plane 22A
On.As a result, by the effect for the 1st inclined plane 22A having been described above, can effectively will be moved into the 1st inclined plane
Lubricant on 22A is guided to the side of oil sealing 24.
Also, in the rotating device 12, input shaft bearing 20 side of the shell 40 in the axial direction of oil sealing 24 has to radially
The limiting unit 44H that inner side is protruded and limitation oil sealing 24 is axially moveable, and the parts of limiting unit 44H in the circumferential are with scarce
Mouth 47.Therefore, it is possible to make lubricant be moved to the 1st from formation top portion 47A1~47A4 of limiting unit 44H breach 47 and incline
On inclined-plane 22A, it can prevent along the side end face of input shaft bearing 20 (the 2nd inclined plane 44G part 2 in limiting unit 44H axial direction
Lubricant that is 44G2) mobile and coming directly along the circumferential direction moves and moves and (drop) to the downside in vertical.Accordingly, it is capable to
It is enough more effectively to direct lubricant to the side of oil sealing 24.
Moreover, in the rotating device 12, limiting unit 44H is configured to more lean on vertical in the axle center C16 than input shaft 16
Top on direction has two breach 47.Therefore, the input for effectively making to be attached in limiting unit 44H axial direction is enabled in particular to
The lubricant on the top of the side end face of bearing 20 is fallen on the 1st inclined plane 22A from formation top portion 47A1~47A4 of breach 47.
Also, in the rotating device 12, shell 40 has what internal diameter diminished from the side of input shaft bearing 20 towards the side of oil sealing 24
2nd inclined plane 44G, also, the end face 44H5 of the limiting unit 44H side of input shaft bearing 20 constitutes a 2nd inclined plane 44G part
(part 2 44G2).It is accordingly possible to ensure bigger (lubricant can be collected) the 2nd inclined plane 44G.Also, due to can
2nd inclined plane 44G end 44G3 is arranged on to the position of closely oil sealing 24, therefore, it is possible to more efficiently will be
The lubricant of 2 inclined plane 44G aggregations is guided to the side of oil sealing 24.
Also, in the rotating device 12, collar 22 has to footpath in the 1st inclined plane 22A side end of input shaft bearing 20
The protuberance 22C protruded laterally.The is maintained at therefore, it is possible to lubricant longer time for making to be maintained on the 1st inclined plane 22A
On 1 inclined plane 22A, the lubricant directly dropped from the 1st inclined plane 22A to the lower section in vertical can be further reduced.
The effect is more notable when the ratio of viscosities of lubricant is higher.Also, as be described hereinafter, protuberance 22C especially revolves by this
Rotary device 12 is longitudinal also effectively to play a role as the holding flange of lubricant when using.
Fig. 4 is to represent the pass between the liquid level 26 of lubricant and the lubrication property of oil sealing 24 (specifically collar 22)
The curve map for the result for being and being tested.
Show that the periphery of collar 22 is set into simple rectilinear form (does not have the 1st inclined plane 22A's in the graph
Type) when (with reference to Fig. 4 dotted line) with being set to during cone shape (have the 1st inclined plane 22A type) (with reference to Fig. 4 solid line)
The result being compared.
The longitudinal axis of curve map represents the liquid level of the liquid level 26 of lubricant.Specifically, represented with mm units from input shaft 16
Axle center C16 distance.For example, -50 refer to the liquid level 26 of lubricant from the low 50mm of axle center C16 of input shaft 16.
Also, the transverse axis of curve map represents the axial location of the part lubricated in collar 22.Specifically, with mm units
Represent the axial distance from the side end face 22E of input shaft bearing 20 in the axial direction of collar 22.In the rotating device 12, oil sealing 24
Main lip 24C seal point 24C1 axial location is arranged on the side end face 16mm of input shaft bearing 20 in the axial direction of collar 22
Position.In the rotating device 12, the liquid level 26 of lubricant liquid level (herein refer to axle center C16 from input shaft 16 away from
From) be 45mm when, confirm the significance difference of criticality away from.When liquid level 26 from the axle center C16 of input shaft 16 distance be -45mm when
Equivalent to the liquid level 26 shown in Fig. 1.That is, one of the liquid level 26 equivalent to the outer ring 20B and rolling element 20A of input shaft bearing 20
Sub-dip stain and inner ring 20C does not impregnate, and the liquid level that oil sealing 24 does not also impregnate.In other words, the liquid level 26 is equivalent to that is,
Oil sealing 24 is set to produce unfavorable condition, the possibility that lubricant is leaked from oil sealing through hole 44P also minimum liquid level.
In the case where lubricant is enclosed to the liquid level 26, if using conventional collar, i.e. tilted using without the 1st
Face 22A and the linear collar for being formed as simple drum, then the part lubricated in collar can only arrive the axle from collar
The upward side end face 22E of input shaft bearing 20 distance is 14mm or so position, can not reach the main lip 24C's of oil sealing 24
Seal point 24C1 (apart from the end 16mm of collar position).That is, oil sealing 24 can not obtain sufficient lubrication.
But, in the case of the liquid level 26 that lubricant is equally enclosed to -45mm, according to the 1st inclined plane 22A's
Collar 22, then understand the part lubricated in collar 22 to (exceeding the seal point 24C1 i.e. 16mm's in position) about 17mm position
Put.That is, it is able to confirm that oil sealing 24 is lubricated better.
In addition, it has been observed that in the rotating device 12, in the rolling element 20A of input shaft bearing 20 one opposite with oil sealing
Side is provided with seal member 88.Therefore, it is impossible to make than the lubricant in the space more in the inner part of the input shaft bearing 20 via input
Bearing 20 itself and flow to the side of oil sealing 24.However, there is the rotating device 12 connection more to be leaned on and oil sealing phase than the input shaft bearing 20
1st lubricant passageway 91 in space of the space of anti-side with more leaning on the side of oil sealing 24 than the input shaft bearing 20.Thus, even if tool
There is seal member 88, can also make more to lean on the lubricant in the space of oil sealing opposite side via (bypassing than input shaft bearing 20
The input shaft bearing 20) the 1st lubricant passageway 91 and flow to the side of oil sealing 24.
Hereinafter, to using the structure the reasons why, illustrates.
If from lubricant being supplied between the rolling element 20A and outer ring 20B, inner ring 20C of oil sealing 24 or input shaft bearing 20
Viewpoint be designed, then preferably not would interfere with lubricant circulation the seal member 88 be configured at input shaft bearing 20.But, rotation
Rotary device 12 might not be assembled horizontal all the time (making the state of input shaft 16 and output shaft 72 towards level), for example, such as Fig. 5 institutes
Show, it is sometimes also longitudinal (to make input shaft 16 and output shaft 72 towards vertical, and make output shaft 72 directed downwardly along vertical
State) assembling.
If the rotating device 12 is longitudinal in use, being enclosed in shell 40 enough soaks input shaft bearing 20 and oil sealing 24
The substantial amounts of lubricant of the degree of stain, then can cause churn loss to become very large, therefore preferably not enclose substantial amounts of lubricant.
Therefore, the rotating device 12 is longitudinal in use, using following structure：Liquid level 87 is located at the axially center with internal gear 58
Position consistent A58, and for input shaft bearing 20, pass through the opposite with oil sealing of the sealed rolling body 20A of seal member 88
Side (downside), and be coated directly on using the slightly higher lubricant of viscosity in the input shaft bearing 20.
In the rotating device 12, more leaned on than input shaft bearing 20 due to being formed with connection with the space of oil sealing opposite side with
The 1st lubricant passageway 91 in the space of the side of oil sealing 24 is more leaned on than input shaft bearing 20, therefore, is provided with even in input shaft bearing 20 close
Part 88 is sealed, (being splashed by stirring) lubricant can be also guided to the side of oil sealing 24 of input shaft bearing 20.
Guide the lubricant to the side of oil sealing 24 of input shaft bearing 20 temporarily to load (holding) to tilt in positioned at the 1st of collar 22
The protuberance 22C of face 22A downside top (end face) 22C1, and guided by centrifugal force along the 1st inclined plane 22A to oil sealing
24 sides.
By using this structure, in horizontal use rotating device 12 and longitudinal use rotating device 12, it can share
Input shaft bearing 20.
In addition, in longitudinal use rotating device 12, according to purposes, can not also be obtained sometimes even if using the structure fully
Lubrication.At this point it is possible to configure oil pump (omit diagram) on load-side shell body 42, make the lubricant that is spued from the pump via
Pipe arrangement (not shown) is flowed into from the 3rd lubricant passageway 93 of the radial outside for being formed at input shaft bearing 20.From the 3rd lubricant passageway
Inner side (the external gear 56 that 93 lubricants flowed into are flowed on the 2nd lubricant passageway 92, but its axial direction towards input shaft bearing 20
Side) flowing suppressed by back-up ring 82, therefore the lubricant is supplied in the axial direction of input shaft bearing 20 via the 2nd lubricant passageway 92
Outside (side of oil sealing 24).
Due to being formed with (external diameter becomes big from the side of input shaft bearing 20 towards the side of oil sealing 24) the 1st inclined plane in collar 22
22A, is guided to the side of oil sealing 24 positioned at more top therefore, it is possible to will effectively supply the lubricant come.Via the 2nd lubricant
Passage 92 supplies the most of lubricant come and input shaft bearing 20 is lubricated from the side of oil sealing 24 and logical via the 1st lubricant
Road 91, which is supplied to the inner side in the axial direction of input shaft bearing 20, is used for the lubrication of reducing gear 32.
In addition, in the rotating device 12, shell 40 is configured to internal diameter from the side of input shaft bearing 20 towards the side of oil sealing 24
The 2nd inclined plane 44G diminished, and when from radially, the 2nd inclined plane 44G end 44G3 and the 1st inclined plane 22A weight
It is folded.But, without being necessarily set to the structure.The 2nd inclined plane 44G for being formed at the inner circumferential of shell 40 must need not be set.For example,
The inner circumferential of shell 40 can also be formed as parallel with input shaft 16.In addition, identical with the 1st inclined plane 22A, the 2nd inclined plane 44G exists
Shape on the section of axle center C16 comprising input shaft 16 can also be linear, and can also be curve-like.
Also, in the rotating device 12, the side of input shaft bearing 20 that shell 40 is configured in the axial direction of oil sealing 24 has
To radially inner side is prominent and the limitation limiting unit 44H that is axially moveable of oil sealing 24, and the parts of limiting unit 44H in the circumferential
With breach 47.But, without limiting unit 44H breach 47 must be set.Even if moreover, not using " limiting unit 44H
Structure with breach 47 ", the structure for example with " parts of limiting unit 44H in the circumferential have projection " also results in phase
Same action effect.That is, lubricant can be similarly made from the top of the projection to moving on the 1st inclined plane 22A.
Also, in the rotating device 12, limiting unit 44H is configured to more lean on vertical in the axle center C16 than input shaft 16
Top on direction has at least two breach 47.But, the generation type of breach 47 (or projection) is not limited to this.Example
Such as, and it is not prohibited by more setting breach 47 (or projection) by the lower section in vertical in the axle center C16 than input shaft 16.But
It is, if direction of rotation is considered, preferably with the symmetrically disposed about even number breach 47 of topmost 44H1 in vertical
(or projection).
Also, in the rotating device 12, shell 40 is configured to internal diameter from the side of input shaft bearing 20 towards the side of oil sealing 24
The 2nd inclined plane 44G diminished, and the limiting unit 44H side end face 44H5 of input shaft bearing 20 constitutes the one of the 2nd inclined plane 44G
Partly (part 2 44G2).But, the 2nd inclined plane 44G structure does not also limit this.For example, in the rotating device 12
In, the 2nd inclined plane 44G formation is equivalent to (more leaning on the region of the side of input shaft bearing 20 in the axial direction than limiting unit 44H) inner circumferential
The part 2 44G2 of the side end face 44H5 of input shaft bearing 20 on 44F part 1 44G1 and the axial direction equivalent to limiting unit 44H
On both, but it is also possible to only form the 2nd inclined plane 44G on a part wherein, can also not form the 2nd inclined plane
44G.Also, in the rotating device 12, the 2nd inclined plane 44G is set to its part 1 44G1 and part 2 44G2 with identical oblique
Spend θ 2 continuous, but need not must be arranged to continuous with same tilt degree, can be bending, step can also be formed with.
Also, in the rotating device 12, collar 22 has to footpath in the 1st inclined plane 22A side end of input shaft bearing 20
The protuberance 22C protruded laterally.But, without protuberance 22C must be set.For example, it is also possible to make without protrusion
The end face of the collar 22 in portion is directly abutted with the inner ring 20C of input shaft bearing 20.Now, the inner ring 20C of input shaft bearing 20 from axle
The part that the end face 22E of the side of input shaft bearing 20 of ring 22 is protruded, which can be played, is similar to " protuberance 22C end face 22C1 " work
With.
Also, in the rotating device 12, in order to by rotating device 12 is horizontal use when and it is longitudinal use when share it is defeated
Enter bearing 20, input shaft bearing 20 has seal member 88 in the rolling element 20A side opposite with oil sealing.But, if for example, rotation
The purposes of rotary device 12 be only defined to it is horizontal use, then (the situation without seal member 88 of seal member 88 need not be set
It is more beneficial for making the flowing of lubricant to become smooth on the contrary).On the other hand, no matter whetheing there is seal member 88, it is preferably provided with the 1st profit
Lubrication prescription passage 91.But, for example, in no seal member 88, and (due to lubricant can by input shaft bearing 20 thus)
The 1st lubricant passageway 91 can be not provided with.
In addition, the rotating device 12 is configured to possess Eccentrically rocking type reduction gear structure 32, but rotation involved in the present invention
The concrete structure of device is not limited to this.For example, it may be the rotating device with simple planetary gear reducing mechanism, also may be used
To be the rotating device with parallel axle speed reducing machine structure or normal axis reducing gear.Or or without reducing gear
Rotating device.Rotary shaft is also not limited to input shaft.As long as sum it up, carry out phase with shell, relative to the shell
The rotating device of rotary shaft and the bearing being configured between shell and rotary shaft to rotation can be using the present invention.
Claims (8)
1. a kind of rotating device, it possesses：Shell；Rotary shaft, is rotated against relative to the shell；Bearing, is configured at
Between the shell and the rotary shaft；Collar, the rotation is embedded in outside position more more outward in the axial direction than the bearing
Axle；Oil sealing, is configured between the shell and the collar；Lubricant, is enclosed in the inside of the shell；The rotating device
It is characterised by,
The collar has the 1st inclined plane, and the external diameter of the 1st inclined plane becomes big from the bearing side towards the oil sealing side.
2. rotating device according to claim 1, it is characterised in that
The shell has the 2nd inclined plane, and the internal diameter of the 2nd inclined plane diminishes from the bearing side towards the oil sealing side,
When from radially, the end of the 2nd inclined plane is overlapping with the 1st inclined plane.
3. rotating device according to claim 1 or 2, it is characterised in that
The bearing side of the shell in the axial direction of the oil sealing has prominent and limit the oil sealing edge to radially inner side
The limiting unit of axial movement,
The part of the limiting unit in its circumferential direction has breach or projection.
4. rotating device according to claim 3, it is characterised in that
The limiting unit the axle center than the rotary shaft more by the top in vertical have breach described at least two or
Person's projection.
5. the rotating device according to claim 3 or 4, it is characterised in that
The shell has the 2nd inclined plane, and the internal diameter of the 2nd inclined plane diminishes from the bearing side towards the oil sealing side,
The face of the bearing side of the limiting unit constitutes a part for the 2nd inclined plane.
6. according to rotating device according to any one of claims 1 to 5, it is characterised in that
The collar has the protuberance prominent to radial outside in the end of the bearing side of the 1st inclined plane.
7. according to rotating device according to any one of claims 1 to 6, it is characterised in that
The bearing has rolling element and outer ring,
The side opposite with oil sealing of the rolling element is provided with seal member,
By the lower section in vertical and more there is lubricant passageway in the outside of the outer ring in the liquid level than the lubricant,
The lubricant passageway connection more leans on the space with oil sealing opposite side than the bearing with more leaning on oil sealing side than the bearing
Space.
8. according to rotating device according to any one of claims 1 to 7, it is characterised in that
The bearing has rolling element,
The liquid level of the lubricant is set as the lower section more leaned on than the axle center of the rotary shaft in vertical and can made described
The liquid level of the part dipping of rolling element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016073569A JP6588374B2 (en) | 2016-03-31 | 2016-03-31 | Rotating device |
| JP2016-073569 | 2016-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107269817A true CN107269817A (en) | 2017-10-20 |
| CN107269817B CN107269817B (en) | 2022-04-08 |
Family
ID=59885679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710131136.XA Active CN107269817B (en) | 2016-03-31 | 2017-03-07 | Rotating device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6588374B2 (en) |
| KR (1) | KR102243560B1 (en) |
| CN (1) | CN107269817B (en) |
| DE (1) | DE102017106197B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482987A (en) * | 2019-01-28 | 2020-08-04 | 发那科株式会社 | Robot |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111065911A (en) | 2017-09-06 | 2020-04-24 | 日本碍子株式会社 | Particle number detector |
| KR101980081B1 (en) | 2018-12-10 | 2019-05-20 | 한화시스템 주식회사 | Rotating Apparatus for Structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2750462A1 (en) * | 1977-11-11 | 1979-05-17 | Daimler Benz Ag | RADIAL SHAFT SEAL, IN PARTICULAR FOR CRANKSHAFT IN COMBUSTION MACHINES IN TRUCKS |
| CN2137049Y (en) * | 1992-09-26 | 1993-06-23 | 耿志远 | Sand prevention sealing mechanism for submersible motor |
| JP2003130188A (en) * | 2001-10-23 | 2003-05-08 | Toyota Motor Corp | Power transmission device |
| JP2007057031A (en) * | 2005-08-25 | 2007-03-08 | Ntn Corp | Continuously variable transmission device |
| US7484893B2 (en) * | 2005-05-13 | 2009-02-03 | Aisin Al Co., Ltd. | Lubricating mechanism for a transfer |
| CN103836120A (en) * | 2012-11-21 | 2014-06-04 | 住友重机械工业株式会社 | Wheel drive unit |
| CN104948720A (en) * | 2014-03-24 | 2015-09-30 | 住友重机械工业株式会社 | Rotation device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01102024U (en) * | 1987-12-28 | 1989-07-10 | ||
| JPH0280816A (en) * | 1988-09-16 | 1990-03-20 | Aisin Aw Co Ltd | Lubricating device for ball bearing and extension housing bearing part |
| JP2016073569A (en) | 2014-10-09 | 2016-05-12 | 日立アロカメディカル株式会社 | Ultrasonic diagnostic device |
-
2016
- 2016-03-31 JP JP2016073569A patent/JP6588374B2/en active Active
-
2017
- 2017-03-06 KR KR1020170028147A patent/KR102243560B1/en active IP Right Grant
- 2017-03-07 CN CN201710131136.XA patent/CN107269817B/en active Active
- 2017-03-22 DE DE102017106197.5A patent/DE102017106197B4/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2750462A1 (en) * | 1977-11-11 | 1979-05-17 | Daimler Benz Ag | RADIAL SHAFT SEAL, IN PARTICULAR FOR CRANKSHAFT IN COMBUSTION MACHINES IN TRUCKS |
| CN2137049Y (en) * | 1992-09-26 | 1993-06-23 | 耿志远 | Sand prevention sealing mechanism for submersible motor |
| JP2003130188A (en) * | 2001-10-23 | 2003-05-08 | Toyota Motor Corp | Power transmission device |
| US7484893B2 (en) * | 2005-05-13 | 2009-02-03 | Aisin Al Co., Ltd. | Lubricating mechanism for a transfer |
| JP2007057031A (en) * | 2005-08-25 | 2007-03-08 | Ntn Corp | Continuously variable transmission device |
| CN103836120A (en) * | 2012-11-21 | 2014-06-04 | 住友重机械工业株式会社 | Wheel drive unit |
| CN104948720A (en) * | 2014-03-24 | 2015-09-30 | 住友重机械工业株式会社 | Rotation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482987A (en) * | 2019-01-28 | 2020-08-04 | 发那科株式会社 | Robot |
| CN111482987B (en) * | 2019-01-28 | 2023-12-29 | 发那科株式会社 | Robot |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017106197B4 (en) | 2020-06-04 |
| CN107269817B (en) | 2022-04-08 |
| JP2017180810A (en) | 2017-10-05 |
| KR20170113084A (en) | 2017-10-12 |
| DE102017106197A1 (en) | 2017-10-05 |
| KR102243560B1 (en) | 2021-04-21 |
| JP6588374B2 (en) | 2019-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR910002402B1 (en) | Scroll compressor | |
| JP6066696B2 (en) | Scroll fluid machinery | |
| JP5645001B2 (en) | Bearing lubricator | |
| CN104948720B (en) | Rotating device | |
| CN107269817A (en) | Rotating device | |
| CN106151474A (en) | Dry-well shaft assembly | |
| JP2015140682A (en) | Turbocompressor | |
| WO2016063565A1 (en) | Turbocharger | |
| JP2006316677A (en) | Scroll type compressor | |
| CN107269708A (en) | A kind of rolling bearing retainer | |
| CN108700111A (en) | The bearing of journals and rotating machinery | |
| JP2013068252A (en) | Lubricating device for planetary gear speed reducer | |
| CN103688057A (en) | Compressor | |
| JP6297346B2 (en) | Hermetic scroll compressor | |
| JP2020037887A (en) | Hermetic electric compressor | |
| JP2007146864A (en) | Scroll compressor | |
| JPH02296098A (en) | Self-lubricating bearing | |
| JP2005188679A (en) | Ball bearing | |
| JP2021532298A (en) | Bearing cage | |
| JP2010048351A (en) | Bearing unit for power transmission device | |
| JP2015127579A (en) | Speed reducer | |
| US20050082120A1 (en) | Method and apparatus for lubricating bearings on a vertical shaft in a gearbox | |
| JP2014227838A (en) | Compressor | |
| JP6834863B2 (en) | Bearing lubrication structure | |
| KR20230104209A (en) | Rolling bearings in scroll compressors with optimized lubrication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |