WO2017061242A1 - 密封装置 - Google Patents
密封装置 Download PDFInfo
- Publication number
- WO2017061242A1 WO2017061242A1 PCT/JP2016/077064 JP2016077064W WO2017061242A1 WO 2017061242 A1 WO2017061242 A1 WO 2017061242A1 JP 2016077064 W JP2016077064 W JP 2016077064W WO 2017061242 A1 WO2017061242 A1 WO 2017061242A1
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- WO
- WIPO (PCT)
- Prior art keywords
- peripheral side
- outer peripheral
- sealing device
- slinger
- inner peripheral
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- 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
- F16C33/80—Labyrinth sealings
- F16C33/805—Labyrinth sealings in addition to other sealings, e.g. dirt guards to protect sealings with sealing lips
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- 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
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
- F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- 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
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
- F16C33/7879—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- 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
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- 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
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
- F16J15/3256—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
- F16J15/3264—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals the elements being separable from each other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
Definitions
- the present invention relates to a sealing device, and more particularly to a sealing device used in a hub bearing of a vehicle or the like.
- a hub bearing that rotatably supports wheels In a vehicle such as an automobile, a hub bearing that rotatably supports wheels is in an environment where it is directly exposed to foreign matter such as rainwater, muddy water, and dust. For this reason, conventionally, a sealing device is attached to the hub bearing in order to seal the inside of the hub bearing. This sealing device is intended to seal the lubricant inside the hub bearing and prevent foreign matter from entering the inside.
- the sealing device used for the hub bearing is required to prevent the foreign material from entering the inside of the hub bearing and prevent the torque resistance applied to the hub bearing from being increased by the sealing device.
- FIG. 4 is a partial cross-sectional view illustrating a schematic configuration of a sealing device (hereinafter also referred to as a hub seal) attached to a conventional hub bearing.
- a conventional sealing device 100 as a hub seal has an outer ring in order to seal an annular space 203 between an outer ring 201 and a hub ring 202 that are coaxially rotated relative to each other in a hub bearing 200. It is press-fitted between 201 and the hub wheel 202.
- the sealing device 100 suppresses the leakage of the lubricant in the rolling elements 204 filled in the space 203 and suppresses foreign matter from entering the space 203.
- the sealing device 100 is made of a metal reinforcing ring 111 fitted into the inner peripheral surface of the outer ring 201 of the hub bearing 200 and a rubber material integrally formed so as to cover the reinforcing ring 111.
- the elastic body portion 112 is provided.
- the elastic body portion 112 has side lips 115, 116 and a radial lip 117, and the side lips 115, 116 and the radial lip 117 are in sliding contact with the curved surface 202 a of the hub wheel 202. Yes.
- the side lips 115 and 116 and the radial lip 117 prevent foreign matter from entering the space 203 of the hub bearing 200.
- the side lips 115 and 116 and the radial lip 117 prevent entry of foreign matter.
- the conventional sealing device 100 has a foreign matter intrusion prevention performance.
- the present invention has been made in view of the above-described problems, and an object of the present invention is to provide a sealing device that can improve the function of preventing foreign substances from entering while avoiding an increase in torque resistance. .
- a sealing device in order to achieve the above object, includes an annular outer peripheral member that is rotatable relative to each other about an axis in a bearing, and an annular inner peripheral member that is at least partially surrounded by the outer peripheral member.
- the sealing device body includes an annular reinforcing ring centered on the axis, and an annular elastic body portion centered on the axis formed from an elastic body attached to the reinforcing ring.
- the elastic body portion extends from the outer peripheral side end portion, which is an outer peripheral end portion of the slinger, through the outer peripheral side to form a gap between the outer peripheral side member and the inner peripheral side member.
- An inner peripheral side labyrinth slip that is positioned on the inner peripheral side of the outer peripheral side labyrinth slip and that forms a gap with the slinger, and a side lip that is positioned on the inner peripheral side of the labyrinth slip and contacts the slinger
- the outer peripheral side labyrin slip has a distal end portion of the outer peripheral side labyrin slip positioned on the outer side in the axial direction with respect to the outer peripheral side end portion of the slinger, and on the outer peripheral side of the outer peripheral side labyrin slip.
- An annular groove centering on the axis that is recessed toward the inner peripheral side is formed.
- the elastic body portion includes an annular dam portion centering on the axis that protrudes from the outer peripheral surface of the outer peripheral member toward the outer peripheral side, and the dam portion is the outer periphery.
- the groove is formed between the side labyrin slip.
- the elastic body portion forms a labyrinth seal that faces the slinger with a gap between the outer peripheral side labyrin slip and the inner peripheral side labyrin slip.
- the slinger is spaced apart from the inner peripheral member in the axial direction at least at a distal end portion of the outer peripheral end, and is recessed toward the inner peripheral side.
- An annular groove clearance is formed around the axis.
- the sealing device of the present invention it is possible to improve the foreign matter intrusion prevention function while avoiding an increase in the generated torque resistance.
- FIG. 1 is a cross-sectional view showing a schematic configuration of a sealing device 1 according to a first embodiment of the present invention.
- FIG. 2 is a cross-sectional view of the sealing device 1 according to the first embodiment of the present invention, for example, in an automobile. It is sectional drawing which shows the state attached to the hub bearing 50 which supports a wheel rotatably.
- the hub bearing 50 is centered on an annular outer ring 51 centered on an axis x as an outer peripheral member and an axis x rotatable relative to the outer ring 51 as an inner peripheral member.
- An annular hub 52 partially surrounded by the outer ring 51 and a plurality of bearing balls 53 disposed between the outer ring 51 and the hub 52 are provided.
- the hub 52 includes an inner ring 54 and a hub ring 55, and a wheel (not shown) is attached to a wheel mounting flange 56 of the hub ring 55 by a plurality of hub bolts 57.
- the sealing device 1 according to the first embodiment of the present invention is attached between the inner peripheral surface of the outer ring 51 of the hub bearing 50 and the outer peripheral surface of the hub ring 55 of the hub 52.
- Another sealing device 60 is attached between the inner peripheral surface of the outer ring 51 and the outer peripheral surface of the inner ring 54 of the hub 52.
- the sealing device 1 according to the first embodiment of the present invention can be attached between the inner peripheral surface of the outer ring 51 and the outer peripheral surface of the inner ring 54 instead of the other sealing device 60.
- annular sealing device 1 centering on the axis x is disposed so as to seal the space 5 of the hub bearing 50.
- the sealing device 1 prevents leakage of the lubricant from the area where the bearing ball 53 of the hub bearing 50 is provided, and prevents foreign matters such as rain water, muddy water, and dust from entering the area from the outside. I am trying.
- the sealing device 1 includes an annular sealing device body 10 centering on an axis x and an annular slinger 20 centering on the axis x. ing.
- the slinger 20 is disposed outside the sealing device body 10 so as to face the sealing device body 10.
- the sealing device body 10 includes an elastic body portion 11 made of an annular elastic body centered on the axis x, and an annular metal reinforcing ring 12 centered on the axis x.
- the elastic body portion 11 is integrally attached to the reinforcing ring 12.
- the elastic body of the elastic body portion 11 include various rubber materials.
- the rubber material is, for example, a synthetic rubber such as nitrile rubber (NBR), hydrogenated nitrile rubber (H-NBR), acrylic rubber (ACM), or fluororubber (FKM).
- NBR nitrile rubber
- H-NBR hydrogenated nitrile rubber
- ACM acrylic rubber
- FKM fluororubber
- the metal material of the reinforcing ring 12 include stainless steel and SPCC (cold rolled steel).
- the outer side is the arrow a direction in the axis x direction
- the inner side is the arrow b direction in the axis x direction. That is, the outside is a side facing the outside of the hub bearing 50 and a side facing the atmosphere where foreign substances are present.
- the inner side is the side facing the inner side of the hub bearing 50 and the side facing the space 5.
- radial direction a direction perpendicular to the axis x
- the direction away from the axis x is the outer peripheral side
- the direction approaching the axis x is the inner circumference.
- the elastic body portion 11 includes a base portion 14, an outer peripheral side labyrinth slip 15, an inner peripheral side labyrinth slip 16, a side lip 17, a radial lip 18, a weir portion 19, and a flange portion. 21.
- the base portion 14 includes an outer peripheral base portion 14a that is a portion extending in the radial direction, and an inner peripheral base portion 14b that is a portion extending inclined from the radial direction, and is substantially a disc centered on the axis x. It is the part extended in the shape and formed in the cyclic
- the outer peripheral side labyrinth slip 15 is a lip portion that extends outward and outward from the vicinity of the outer peripheral end of the base portion 14 in the base portion 14. As will be described later, the outer peripheral side labyrinth slip 15 extends so that the tip end portion is located outside the outer peripheral side end portion 20c of the slinger 20 in the axis x direction.
- the inner circumferential side labyrinth slip 16 is a lip portion that is located on the inner circumferential side relative to the outer circumferential side labyrinth slip 15 and extends outward from the base portion 14 and toward the outer circumferential side.
- the side lip 17 is located on the inner peripheral side of the inner peripheral side labyrin slip 16 and is a lip portion that extends outward and outward from the inner peripheral end of the base portion 14, and the radial lip 18 is the base portion 14. It is a lip part extended inward from the edge part of the inner peripheral side of this, and an inner peripheral side.
- the dam portion 19 is a portion formed inwardly from the vicinity of the outer peripheral end of the base portion 14 to the outer peripheral side labyrin slip 15 in the base portion 14, and the flange portion 21 is more than the dam portion 19. It is a portion extending inward from the base portion 14 at a position on the inner peripheral side.
- the outer peripheral side labyrinth slip 15, the inner peripheral side labyrinth slip 16, the side lip 17, the radial lip 18, the weir portion 19, and the flange portion 21 are all formed in an annular shape centering on the axis x.
- the reinforcing ring 12 is formed in an annular shape centering on the axis x, and as shown in FIG. 1, a cylindrical cylindrical portion 12a located at the outer peripheral end, and a disc shape extending from the cylindrical portion 12a to the inner peripheral side.
- a bent portion 12d that reaches an end portion on the inner peripheral side.
- the reinforcing ring 12 is fitted on the inner peripheral side of the outer ring 51.
- the elastic body part 11 is attached to the reinforcement ring 12 from the inner peripheral side and the outer side, and the elastic body part 11 is reinforced.
- the base portion 14 of the elastic body portion 11 is attached to the disk portion 12b and the bent portion 12d of the reinforcing ring 12 from the inner peripheral side, and the elastic body portion is attached to the cylindrical portion 12a of the reinforcing ring 12.
- 11 dam portions 19 are attached so as to cover the cylindrical portion 12a, and the flange portion 21 of the elastic body portion 11 is connected to the disc portion 12b and the bent portion 12d in the disc portion 12b and the bent portion 12d of the reinforcing ring 12. It is attached so as to be pinched. As shown in FIG.
- the inner peripheral end of the bent portion 12 d on the inner peripheral side is covered with and embedded in the elastic body portion 11.
- the inner peripheral side portion of the weir portion 19 of the elastic body portion 11 forms a gasket portion that is fitted to the outer ring 51 in the inner peripheral side portion of the cylindrical portion 12a of the reinforcing ring 12. Is compressed between the outer peripheral surface of the outer ring 51 and the cylindrical portion 12a of the reinforcing ring 12 to generate a force directed radially inward.
- the reinforcing ring 12 is manufactured by, for example, pressing or forging, and the elastic body portion 11 is formed by cross-linking (vulcanization) molding using a molding die. At the time of this cross-linking molding, the reinforcing ring 12 is disposed in the mold, the elastic body portion 11 is bonded to the reinforcing ring 12 by cross-linking adhesion, and the elastic body portion 11 is formed integrally with the reinforcing ring 12.
- the slinger 20 is a member made of metal, for example, stainless steel excellent in rust resistance, and is a plate-like annular member centering on the axis x.
- the slinger 20 is attached to a curved surface 55a in the vicinity of the inner peripheral end (near the root) inside the wheel mounting flange 56 of the hub wheel 55.
- the curved surface 55 a is a hyperbolic curved surface, for example, and has a shape that is in close contact with the inner peripheral surface of the slinger 20.
- the slinger 20 extends along the curved surface 55a from the annular curved surface portion 20a centering on the axis line x formed in a shape along the curved surface 55a, and the outer peripheral end of the curved surface portion 20a. And a disk-shaped disk part 20b centering on an axis x extending to the outer peripheral side.
- the curved surface portion 20a and the disk portion 20b of the slinger 20 of the sealing device 1 according to the first embodiment of the present invention are continuously formed from the inner side to the outer peripheral side along the curved surface 55a. Yes.
- the curved surface 55a is a curved surface from a cylindrical surface, and is a disk-shaped surface extending in the radial direction.
- the outer peripheral side labyrinth slip 15 of the sealing device 1 extends through the outer peripheral side from the outer peripheral end (outer peripheral end 20 c) of the disk portion 20 b of the slinger 20.
- the outer peripheral side labyrin slip 15 passes the outer peripheral side from the outer peripheral side end portion 20c and exceeds the outer peripheral side end portion 20c, and the front end portion is more outward in the axis x direction than the disk portion 20b of the slinger 20. It extends to be located.
- a minute gap 31 is formed between the distal end portion of the outer peripheral side labyrin slip 15 and the curved surface 55a of the hub wheel 55, and in the direction of the axis x relative to the outer peripheral end portion 20c of the disk portion 20b of the slinger 20.
- the outer peripheral side labyrinth slip 15 forms a labyrinth seal.
- the outer peripheral side labyrin slip 15 forms an annular groove portion 32 centering on the axis line x recessed toward the inner peripheral side on the outer peripheral side of the outer peripheral side labyrin slip 15.
- the outer peripheral side labyrin slip 15 extends so that the tip portion thereof is opposed to the curved surface 55a of the hub wheel 55 with the minute gap 31 therebetween.
- the slinger 20 is covered from the outer peripheral side by forming an interval on the outer peripheral side in the radial direction with respect to the outer peripheral side end 20c of the disk portion 20b of the slinger 20.
- the groove 32 captures and accommodates foreign matter such as rainwater, muddy water, and dust before passing through the gap 31.
- the foreign matter captured and accommodated in the groove 32 falls by its own weight, and the foreign matter captured and accommodated in the groove 32 is sealed. 1 can be discharged to the outside.
- the sealing device body 10 rotates, the foreign matter captured and accommodated in the groove portion 32 can be discharged to the outside of the sealing device 1 by the action of centrifugal force accompanying the rotation of the hub bearing 50.
- the dam portion 19 protrudes from the outer peripheral surface 51a of the outer ring 51 to the outer peripheral side, and is formed in an annular shape centering on the axis x.
- the dam portion 19 forms the groove portion 32 with the outer peripheral side labyrin slip 15.
- the outer side surface 19 c of the outer side of the dam portion 19 is a groove portion together with the outer peripheral side surface of the outer peripheral side labyrin slip 15. 32 is formed.
- the inner surface 19 a of the dam portion 19 serves as a breakwater when foreign matter enters from the outside, and suppresses foreign matter from entering the inside of the sealing device 1.
- the foreign matter that exceeds the inner surface 19a of the dam portion 19 is captured and accommodated in the groove portion 32 along the outer peripheral surface 19b and the outer surface 19c of the dam portion 19, and the foreign matter captured and accommodated as described above falls by its own weight, It is discharged outside the sealing device 1.
- An outer peripheral side base portion 14 a that is a portion extending in the radial direction of the base portion 14 of the elastic body portion 11 between the outer peripheral side labyrin slip 15 and the inner peripheral side labyrin slip 16 has a diameter between the disc portion 20 b of the slinger 20.
- a gap 26 having a very small width extending in the direction is formed, and a labyrinth seal L is formed by the gap 26.
- the outer peripheral side base portion 14 a of the base portion 14 is formed in an annular plate or a disc shape centering on the axis line x, and a disc portion of the slinger 20 with a gap 26 on the outer surface. 20b.
- the inner peripheral side labyrinth slip 16 is positioned on the inner peripheral side with respect to the outer peripheral side labyrinth slip 15, and a minute gap 33 is formed between the leading end and the curved surface portion 20 a of the slinger 20 to form a labyrinth seal. Yes.
- the inner peripheral side labyrin slip 16 forms an annular groove 34 centering on the axis line x recessed toward the inner peripheral side on the outer peripheral side of the inner peripheral side labyrin slip 16 between the base portion 14 of the elastic body portion 11. .
- the side lip 17 is in contact with the inner surface of the curved surface portion 20a of the slinger 20 with a predetermined tightening margin (contact width) at the tip portion to form a seal portion.
- the radial lip 18 abuts against the outer peripheral surface of the curved surface portion 20a of the slinger 20 with a predetermined tightening margin at the tip portion to form a seal portion.
- the foreign matter that has passed through the inner peripheral side labyrin slip 16 is prevented from entering the space 5 by the side lip 17 and the radial lip 18.
- the curved surface 55a of the hub wheel 55 is formed in a shape forming a step bulging outward in the vicinity where the disk portion 20b is located, and the disk portion 20b of the slinger 20 and the curved surface 55a.
- An annular groove clearance 36 centering on the axis line x recessed toward the inner peripheral side is formed. That is, in the sealing device 1 according to the first embodiment of the present invention, the slinger 20 and the disk portion 20b are formed by using a portion (step portion) having a shape bulging outward from the curved surface 55a of the hub wheel 55.
- a groove clearance 36 is formed between the curved surface 55 a of the hub wheel 55.
- Foreign matter that enters from the outside through the curved surface 55 a and passes through the gap 31 is captured and accommodated in the groove gap 36.
- the foreign matter captured and accommodated in the groove clearance 36 falls due to its own weight, and the foreign matter captured and accommodated in the groove clearance 36 can be discharged to the outside of the sealing device 1.
- the foreign matter captured and accommodated in the groove gap portion 36 and the foreign matter dropped by its own weight and adhering to the groove gap portion 36 are affected by the centrifugal force accompanying the rotation of the hub bearing 50 (slinger 20 and hub wheel 55). Is discharged to the outside of the sealing device 1. Even when the slinger 20 does not rotate, the foreign matter captured and accommodated in the groove gap portion 36 falls due to its own weight, so that the foreign matter captured and accommodated in the groove gap portion 36 can be discharged to the outside of the sealing device 1. it can.
- FIG. 3 is a cross-sectional view showing a schematic configuration of the sealing device 2 according to the second embodiment of the present invention.
- the sealing device 2 according to the second embodiment of the present invention is applied to the hub bearing 50 shown in FIG. 2 in the same manner as the sealing device 1 according to the first embodiment of the present invention described above.
- the sealing device 2 is attached between the inner peripheral surface of the outer ring 51 of the hub bearing 50 and the outer peripheral surface of the hub ring 55 of the hub 52.
- Another sealing device 60 is attached between the inner peripheral surface of the outer ring 51 and the outer peripheral surface of the inner ring 54 of the hub 52.
- the sealing device 2 according to the second embodiment of the present invention can be attached between the inner peripheral surface of the outer ring 51 and the outer peripheral surface of the inner ring 54 instead of the other sealing device 60.
- annular sealing device 2 centering on the axis x is disposed so as to seal the space 5 of the hub bearing 50.
- the sealing device 2 prevents leakage of the lubricant from the area where the bearing ball 53 of the hub bearing 50 is provided, and prevents foreign matters such as rain water, muddy water, and dust from entering the area from the outside. I am trying.
- the sealing device 2 includes an annular sealing device main body 10 centered on the axis x and an annular slinger 40 centered on the axis x. ing.
- the slinger 40 is disposed outside the sealing device body 10 so as to face the sealing device body 10.
- the sealing device body 10 includes an elastic body portion 11 made of an annular elastic body centered on the axis x, and an annular metal reinforcing ring 12 centered on the axis x.
- the elastic body portion 11 is integrally attached to the reinforcing ring 12.
- the elastic body of the elastic body portion 11 include various rubber materials.
- the rubber material is, for example, a synthetic rubber such as nitrile rubber (NBR), hydrogenated nitrile rubber (H-NBR), acrylic rubber (ACM), or fluororubber (FKM).
- NBR nitrile rubber
- H-NBR hydrogenated nitrile rubber
- ACM acrylic rubber
- FKM fluororubber
- the metal material of the reinforcing ring 12 include stainless steel and SPCC (cold rolled steel).
- the outer side is the arrow a direction in the axis x direction
- the inner side is the arrow b direction in the axis x direction. That is, the outside is a side facing the outside of the hub bearing 50 and a side facing the atmosphere where foreign substances are present.
- the inner side is the side facing the inner side of the hub bearing 50 and the side facing the space 5.
- radial direction a direction perpendicular to the axis x
- the direction away from the axis x is the outer peripheral side
- the direction closer to the axis x (arrow d in FIG. 3).
- Direction) is the inner circumference.
- the elastic body portion 11 includes a base portion 14, an outer peripheral side labyrinth slip 15, an inner peripheral side labyrinth slip 16, a side lip 17, a radial lip 18, a weir portion 19, and a flange portion. 21.
- the base portion 14 includes an outer peripheral base portion 14a that is a portion extending in the radial direction, and an inner peripheral base portion 14b that is a portion extending inclined from the radial direction, and is substantially a disc centered on the axis x. It is the part extended in the shape and formed in the cyclic
- the outer peripheral side labyrin slip 15 is a lip portion extending from the vicinity of the outer peripheral end of the base portion 14 to the outer side and the outer peripheral side in the base portion 14, and the inner peripheral side labyrin slip 16 is inner than the outer peripheral side labyrin slip 15. It is a lip portion that is located on the circumferential side and extends outward from the base portion 14 and on the outer circumferential side.
- the side lip 17 is located on the inner peripheral side of the inner peripheral side labyrin slip 16 and is a lip portion that extends outward and outward from the inner peripheral end of the base portion 14, and the radial lip 18 is the base portion 14. It is a lip part extended inward from the edge part of the inner peripheral side of this, and an inner peripheral side.
- the dam portion 19 is a portion formed inwardly from the vicinity of the outer peripheral end of the base portion 14 to the outer peripheral side labyrin slip 15 in the base portion 14, and the flange portion 21 is more than the dam portion 19. It is a portion extending inward from the base portion 14 at a position on the inner peripheral side.
- the outer peripheral side labyrinth slip 15, the inner peripheral side labyrinth slip 16, the side lip 17, the radial lip 18, the weir portion 19, and the flange portion 21 are all formed in an annular shape centering on the axis x.
- the reinforcing ring 12 is formed in an annular shape centering on the axis x, and as shown in FIG. 3, a cylindrical cylindrical portion 12a located at the outer peripheral end, and a disc shape extending from the cylindrical portion 12a to the inner peripheral side.
- a bent portion 12d that reaches an end portion on the inner peripheral side.
- the reinforcing ring 12 is fitted on the inner peripheral side of the outer ring 51.
- the elastic body part 11 is attached to the reinforcement ring 12 from the inner peripheral side and the outer side, and the elastic body part 11 is reinforced.
- the base portion 14 of the elastic body portion 11 is attached to the disk portion 12b and the bent portion 12d of the reinforcing ring 12 from the inner peripheral side, and the elastic body portion is attached to the cylindrical portion 12a of the reinforcing ring 12.
- 11 dam portions 19 are attached so as to cover the cylindrical portion 12a, and the flange portion 21 of the elastic body portion 11 is connected to the disc portion 12b and the bent portion 12d in the disc portion 12b and the bent portion 12d of the reinforcing ring 12. It is attached so as to be pinched. As shown in FIG.
- the inner peripheral side end portion on the inner peripheral side of the bent portion 12 d is covered with and embedded in the elastic body portion 11.
- the inner peripheral side portion of the weir portion 19 of the elastic body portion 11 forms a gasket portion that is fitted to the outer ring 51 in the inner peripheral side portion of the cylindrical portion 12a of the reinforcing ring 12. Is compressed between the outer peripheral surface of the outer ring 51 and the cylindrical portion 12a of the reinforcing ring 12 to generate a force directed radially inward.
- the reinforcing ring 12 is manufactured by, for example, pressing or forging, and the elastic body portion 11 is formed by cross-linking (vulcanization) molding using a molding die. At the time of this cross-linking molding, the reinforcing ring 12 is disposed in the mold, the elastic body portion 11 is bonded to the reinforcing ring 12 by cross-linking adhesion, and the elastic body portion 11 is formed integrally with the reinforcing ring 12.
- the slinger 40 is a member made of metal, for example, stainless steel excellent in rust resistance, and is a plate-shaped annular member centering on the axis x.
- the slinger 40 is attached to a curved surface 55a in the vicinity of the inner peripheral end (near the root) on the inner side of the wheel mounting flange 56 of the hub wheel 55.
- the curved surface 55 a is a hyperbolic curved surface, for example, and has a shape that is in close contact with the inner peripheral surface of the slinger 40.
- the slinger 40 has an annular curved surface portion 40a centered on the axis line x formed in a shape along the curved surface 55a, and an inner surface from the outer peripheral end of the curved surface portion 40a.
- a disk portion 40b centered on a disk-shaped axis line x that is spaced apart and extends toward the outer peripheral side.
- the disc portion 40b of the slinger 40 of the sealing device 2 is provided with a gasket portion 23 made of an annular elastic body centering on the axis line x so as to cover the outer peripheral end and the outside of the disc portion 40b.
- the gasket portion 23 is bonded to the slinger 40 by cross-linking adhesion similarly to the elastic body portion 11 described above.
- the gasket portion 23 has an outer peripheral end portion 23a that covers an outer peripheral end portion (outer peripheral end portion 40c) of the disc portion 40b, and an outer portion 23b that covers the outside of the disc portion 40b and is in close contact with the curved peripheral surface 55a. ing.
- the outer peripheral side labyrinth slip 15 of the sealing device 2 extends through the outer peripheral side from the outer peripheral side end 40c of the disk part 40b of the slinger 40 and the outer peripheral end 23a of the gasket part 23.
- the tip of the outer peripheral side labyrin slip 15 forms a minute gap 31 with the curved surface 55a of the hub wheel 55, and is closer to the axis x direction than the outer peripheral end 40c of the disc part 40b of the slinger 40.
- the outer peripheral side labyrinth slip 15 forms a labyrinth seal.
- the outer peripheral side labyrin slip 15 forms an annular groove portion 32 centering on the axis line x recessed toward the inner peripheral side on the outer peripheral side of the outer peripheral side labyrin slip 15.
- the outer peripheral side labyrin slip 15 extends so that the tip portion thereof is opposed to the curved surface 55a of the hub wheel 55 with the minute gap 31 therebetween.
- An interval is formed on the outer peripheral side in the radial direction with respect to the outer end 40c of the disk portion 40b of the slinger 40.
- the groove 32 captures and accommodates foreign matter such as rainwater, muddy water, and dust before passing through the gap 31.
- the foreign matter captured and accommodated in the groove 32 falls by its own weight, and the foreign matter captured and accommodated in the groove 32 is sealed.
- the sealing device body 10 rotates, the foreign matter captured and accommodated in the groove portion 32 can be discharged to the outside of the sealing device 2 by the action of centrifugal force accompanying the rotation of the hub bearing 50.
- the dam portion 19 protrudes from the outer peripheral surface 51a of the outer ring 51 to the outer peripheral side, and is formed in an annular shape centering on the axis x.
- the dam portion 19 forms the groove portion 32 with the outer peripheral side labyrin slip 15.
- the outer side surface 19 c of the outer side of the dam portion 19 is a groove portion together with the outer peripheral side surface of the outer peripheral side labyrin slip 15. 32 is formed.
- the inner surface 19 a of the dam portion 19 serves as a breakwater when foreign matter enters from the outside, and suppresses the entry of foreign matter into the sealing device 2.
- the foreign matter that exceeds the inner surface 19a of the dam portion 19 is captured and accommodated in the groove portion 32 along the outer peripheral surface 19b and the outer surface 19c of the dam portion 19, and the foreign matter captured and accommodated as described above falls by its own weight, It is discharged outside the sealing device 2.
- An outer peripheral side base portion 14 a that is a portion extending in the radial direction of the base portion 14 of the elastic body portion 11 between the outer peripheral side labyrin slip 15 and the inner peripheral side labyrin slip 16 has a diameter between the disc portion 40 b of the slinger 40.
- a gap 26 having a very small width extending in the direction is formed, and a labyrinth seal L is formed by the gap 26.
- the outer peripheral side base portion 14 a of the base portion 14 is formed in an annular plate or a disc shape centered on the axis line x, and the disc portion of the slinger 40 with a gap 26 on the outer surface. It faces 40b.
- the inner peripheral side labyrinth slip 16 is located on the inner peripheral side with respect to the outer peripheral side labyrinth slip 15, and a minute gap 33 is formed between the curved surface portion 40 a of the slinger 40 at the tip thereof to form a labyrinth seal. Yes.
- the inner peripheral side labyrin slip 16 forms an annular groove 34 centering on the axis line x recessed toward the inner peripheral side on the outer peripheral side of the inner peripheral side labyrin slip 16 between the base portion 14 of the elastic body portion 11. .
- the side lip 17 is in contact with the inner surface of the curved surface portion 40a of the slinger 40 with a predetermined tightening margin (contact width) at the tip portion to form a seal portion. Further, the radial lip 18 has a predetermined tightening margin at the front end portion and abuts against the outer peripheral surface of the curved surface portion 40a of the slinger 40 to form a seal portion. The foreign matter that has passed through the inner peripheral side labyrin slip 16 is prevented from entering the space 5 by the side lip 17 and the radial lip 18.
- the disk portion 40b of the slinger 40 is formed to be displaced inward at a portion that moves from the curved surface portion 40a, and the curved surface 55a of the hub wheel 55 is in the vicinity where the disk portion 40b is located. It is formed in a shape bulging outward. That is, in the sealing device 2, the slinger 40 has a disk portion 40b that is displaced inward with respect to the curved surface portion 40a, and the curved surface 55a of the hub wheel 55 bulges outward (stepped portion). As a result, the disc part 40b of the slinger 40 is located at a position separated from the circumferential surface 55a.
- the gasket part 23 which covers the outer peripheral side edge part 40c of the disk part 40b is cyclic
- the groove clearance 36 is formed. Foreign matter that enters from the outside through the curved surface 55 a and passes through the gap 31 is captured and accommodated in the groove gap 36. The foreign matter captured and accommodated in the groove clearance 36 falls due to its own weight, and the foreign matter captured and accommodated in the groove clearance 36 can be discharged to the outside of the sealing device 2.
- the foreign matter captured and accommodated in the groove gap portion 36 and the foreign matter dropped by its own weight and adhering to the groove gap portion 36 are affected by the centrifugal force accompanying the rotation of the hub bearing 50 (slinger 40 and hub wheel 55). Is discharged to the outside of the sealing device 2. Even when the slinger 40 does not rotate, the foreign matter captured and accommodated in the groove gap 36 falls due to its own weight, so that the foreign matter captured and accommodated in the groove gap 36 can be discharged outside the sealing device 2. it can.
- the slinger 40 has a disc portion 40b that is displaced inward with respect to the curved surface portion 40a as shown in FIG. 3, and the curved surface 55a of the hub wheel 55 is outside. It is not always necessary to have a bulging portion. For example, even if the curved surface 55a of the hub wheel 55 does not have a portion swelled outward and the curved surface 55a is formed smoothly and continuously, the slinger 40 is formed with respect to the curved surface portion 40a. If the disc portion 40b is displaced inward, the groove clearance 36 can be formed between the curved surface 55a and the disc portion 40b.
- the slinger 40 when the curved surface 55a of the hub wheel 55 has a portion of the shape bulging outward near the position where the sealing device 2 is installed, the slinger 40 has only the curved surface portion 40a and does not have the disk portion 40b. Even so, by utilizing the part of the hub ring 55 that bulges outward from the curved surface 55a, the slinger 40 forms the groove clearance 36 between the curved surface portion 40a and the curved surface 55a of the hub wheel 55. It becomes possible to form. The same may be applied to the sealing device 1 shown in FIG.
- the outer peripheral side labyrinth slip 15 is the outer peripheral side end 20c of the disk part 20b of the slinger 20 or the outer peripheral side end of the disk part 40b of the slinger 40.
- the distal end of the outer peripheral side labyrin slip 15 is more axial than the outer peripheral side ends 20c, 40c of the disk portions 20b, 40b of the slinger 20, 40 while extending through the outer peripheral side of the outer peripheral end 23a of the portion 40c and the gasket portion 23. Since it is located outside in the x direction, a minute gap 31 can be formed between the hub wheel 55 and the curved surface 55a, and a labyrinth seal can be formed.
- the outer peripheral side labyrin slip 15 can improve the function of preventing foreign matter entry while avoiding an increase in the generated torque resistance. Further, since the outer peripheral side labyrinth slip 15 covers the gap 26 between the disk portions 20b, 40b of the slinger 20, 40 and the outer peripheral side base portion 14a of the base portion 14 from the outer peripheral side, a more foreign substance intrusion prevention function. Can be improved.
- the groove portion 32 is formed on the outer peripheral side of the outer peripheral side labyrin slip 15, the foreign matter can be captured and accommodated in the groove portion 32 before the foreign matter enters the gap 31, and is captured and accommodated in the groove portion 32. Foreign matter can be dropped by its own weight and discharged to the outside of the sealing devices 1 and 2.
- the dam portion 19 is formed so as to protrude from the outer peripheral surface 51a of the outer ring 51 to the outer peripheral side, the inner side surface 19a of the dam portion 19 can serve as a breakwater when foreign matter enters from the outside. Can be prevented from entering the inside of the sealing devices 1 and 2.
- the outer side surface 19c outside the dam portion 19 forms a groove portion 32 together with the outer peripheral side surface of the outer peripheral side labyrin slip 15, the foreign matter that exceeds the inner side surface 19a of the dam portion 19 19b and the outer surface 19c are captured and accommodated in the groove 32, and the foreign matter captured and accommodated in the groove 32 falls due to its own weight, and the foreign matter captured and accommodated in the groove 32 is discharged to the outside of the sealing devices 1 and 2. Can do.
- the outer peripheral side base portion 14 a of the base portion 14 forms a labyrinth seal L by the gap 26, the flow resistance of the foreign matter can be increased and the foreign matter can be prevented from entering the space 5.
- the outer peripheral side end portion 20c of the disk portion 20b of the slinger 20 or the gasket portion 23 covering the outer peripheral side end portion 40c of the disc portion 40b of the slinger 40 is formed on the hub wheel 55 facing the outer side portion 23b of the gasket portion 23. Since an annular groove clearance 36 is formed between the curved surface 55a and the axis x recessed toward the inner peripheral side, foreign matter passing through the gap 31 through the curved surface 55a from the outside is formed. The foreign matter captured and accommodated in the groove clearance 36 can be dropped by its own weight and discharged to the outside of the sealing devices 1 and 2, and the centrifugal movement accompanying the rotation of the hub bearing 50 can be performed. It can be discharged to the outside of the sealing devices 1 and 2 by the action of force.
- the inner peripheral side labyrinth slip 16 forms an annular groove 34 centering on the axis line x recessed toward the inner peripheral side between the elastic body part 11 and the base body part 14, the foreign matter enters the groove part 34.
- the foreign matter captured and accommodated in the groove 34 is dropped downward, and the fallen foreign matter can be discharged to the outside of the sealing devices 1 and 2 by the action of centrifugal force accompanying the rotation of the hub bearing 50.
- the inner circumferential side labyrinth slip 16 forms a labyrinth seal by forming a minute gap 33 between the curved surface portions 20a and 40a of the slinger 20 and 40, foreign matter enters through the minute gap 33. Can be difficult.
- the present invention is not limited to the sealing devices 1 and 2 according to the above-described embodiments, and is included in the concept and claims of the present invention. All aspects are included.
- the configurations may be appropriately combined as appropriate so as to achieve at least part of the problems and effects described above.
- the shape, material, arrangement, size, and the like of each component in the above embodiment can be changed as appropriate according to the specific usage mode of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
- Sealing Devices (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
5、203 空間
10 密封装置本体
11、112 弾性体部
12、111 補強環
12a、12c 円筒部
12b 円盤部
12d 屈曲部
14 基体部
14a 外周側基体部
14b 内周側基体部
15 外周側ラビリンスリップ
16 内周側ラビリンスリップ
17、115、116 サイドリップ
18、117 ラジアルリップ
19 堰部
19a 内側面
19b 外周面
19c 外側面
20、40 スリンガ
20a、40a 曲面部
20b、40b 円盤部
20c、40c 外周側端部
21 フランジ部
23 ガスケット部
26、31、33 間隙
32、34 溝部
36 溝隙間部
50、200 ハブベアリング
51、201 外輪
51a 外周面
52 ハブ
53 ベアリングボール
54 内輪
55、202 ハブ輪
55a,202a 曲周面
56 車輪取付フランジ
57 ハブボルト
L ラビリンスシール
x 軸線
Claims (4)
- ベアリングにおいて軸線について互いに相対回動可能な環状の外周側部材と該外周側部材に少なくとも部分的に包囲された環状の内周側部材との間を密封する密封装置であって、
前記外周側部材に取り付けられる密封装置本体と、
前記密封装置本体の外側に位置し前記内周側部材に取り付けられる前記軸線を中心とする環状のスリンガとを備え、
前記密封装置本体は、前記軸線を中心とする環状の補強環と、該補強環に取り付けられている、弾性体から形成されている前記軸線を中心とする環状の弾性体部とを備え、
前記弾性体部は、前記スリンガの外周側の端部である外周側端部よりも前記外周側を通って延びて前記内周側部材との間に間隙を形成する外周側ラビリンスリップと、前記外周側ラビリンスリップよりも内周側に位置し前記スリンガとの間に間隙を形成する内周側ラビリンスリップと、前記ラビリンスリップよりも前記内周側に位置し前記スリンガに当接するサイドリップとを備え、
前記外周側ラビリンスリップは、該外周側ラビリンスリップの先端部が前記スリンガの前記外周側端部よりも前記軸線方向において前記外側に位置すると共に、前記外周側ラビリンスリップの前記外周側において前記内周側に窪む前記軸線を中心とする環状の溝部を形成している
ことを特徴とする密封装置。 - 前記弾性体部は、前記外周側部材の外周面から前記外周側に突出する前記軸線を中心とする環状の堰部を備え、該堰部は前記外周側ラビリンスリップとの間に前記溝部を形成していることを特徴とする請求項1記載の密封装置。
- 前記弾性体部は、前記外周側ラビリンスリップと前記内周側ラビリンスリップとの間において前記スリンガに間隙をもって対向してラビリンスシールを形成していることを特徴とする請求項1又は2記載の密封装置。
- 前記スリンガは、前記外周側端部の少なくとも先端側の部分において前記軸線方向において前記内周側部材から離間しており、前記内周側に窪む前記軸線を中心とする環状の溝隙間部を形成していることを特徴とする請求項1乃至3のいずれか1項記載の密封装置。
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KR1020187008967A KR102035695B1 (ko) | 2015-10-09 | 2016-09-14 | 밀봉장치 |
CN201680052522.3A CN108027066B (zh) | 2015-10-09 | 2016-09-14 | 密封装置 |
EP16853396.6A EP3339693B1 (en) | 2015-10-09 | 2016-09-14 | Sealing apparatus |
JP2017544430A JP6876610B2 (ja) | 2015-10-09 | 2016-09-14 | 密封装置 |
US15/915,720 US10612597B2 (en) | 2015-10-09 | 2018-03-08 | Sealing apparatus |
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US (1) | US10612597B2 (ja) |
EP (1) | EP3339693B1 (ja) |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190024717A1 (en) * | 2017-07-18 | 2019-01-24 | Nakanishi Metal Works Co., Ltd. | Rotary seal |
JP2019066026A (ja) * | 2017-10-05 | 2019-04-25 | Nok株式会社 | 密封装置 |
CN109826956A (zh) * | 2019-04-04 | 2019-05-31 | 铁岭五星油膜橡胶密封研究所 | 浮动式双主唇组合密封圈 |
WO2020250579A1 (ja) * | 2019-06-12 | 2020-12-17 | Nok株式会社 | 密封装置 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112901663B (zh) * | 2016-06-20 | 2023-07-25 | Nok株式会社 | 密封装置 |
US10661404B2 (en) * | 2017-12-20 | 2020-05-26 | Caterpillar Paving Products Inc. | Sealing system for a surface treatment machine |
JP7417973B2 (ja) * | 2019-03-18 | 2024-01-19 | 内山工業株式会社 | 軸受密封装置 |
CN112013115A (zh) * | 2019-05-28 | 2020-12-01 | 无锡恩福油封有限公司 | 密封装置 |
IT201900013908A1 (it) * | 2019-08-05 | 2021-02-05 | Skf Ab | Dispositivo di tenuta |
IT202000023791A1 (it) * | 2020-10-09 | 2022-04-09 | Skf Ab | Dispositivo di tenuta per unità cuscinetto |
CN113847349B (zh) * | 2021-08-16 | 2024-01-19 | 人本股份有限公司 | 轮毂轴承外侧迷宫式密封圈 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015052350A (ja) * | 2013-09-06 | 2015-03-19 | 内山工業株式会社 | 軸受密封装置 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4924789B2 (ja) * | 2005-06-28 | 2012-04-25 | Nok株式会社 | 密封装置 |
JP5170366B2 (ja) * | 2007-02-22 | 2013-03-27 | Nok株式会社 | 密封装置 |
JP2009085419A (ja) * | 2007-10-03 | 2009-04-23 | Nok Corp | 密封装置 |
DE102008017409B4 (de) * | 2008-04-05 | 2016-02-11 | Schaeffler Technologies AG & Co. KG | Dichtungsanordnung sowie Radlager mit der Dichtungsanordnung |
JP2010071323A (ja) * | 2008-09-16 | 2010-04-02 | Nok Corp | 密封装置 |
CN102224351A (zh) * | 2008-11-28 | 2011-10-19 | Nok株式会社 | 密封装置 |
DE102010064672B3 (de) | 2010-08-13 | 2019-10-10 | Schaeffler Technologies AG & Co. KG | Dichtungsanordnung zur Abdichtung eines Radlagers |
JP5836584B2 (ja) * | 2010-11-02 | 2015-12-24 | Ntn株式会社 | 車輪用軸受装置 |
JP2012207769A (ja) * | 2011-03-30 | 2012-10-25 | Ntn Corp | 車輪用軸受装置 |
JP5964120B2 (ja) * | 2012-04-13 | 2016-08-03 | Ntn株式会社 | 車輪用軸受の密封装置 |
JP2013234748A (ja) | 2012-05-11 | 2013-11-21 | Uchiyama Manufacturing Corp | 密封構造 |
JP2014139451A (ja) | 2013-01-21 | 2014-07-31 | Nok Corp | 密封装置 |
JP2014240676A (ja) | 2013-06-11 | 2014-12-25 | 日本精工株式会社 | シール付車輪支持用軸受ユニット |
ITTO20130802A1 (it) * | 2013-10-03 | 2015-04-04 | Skf Ab | Dispositivo di tenuta a gocciolatoi, in particolare per cuscinetti di rotolamento |
ITTO20130980A1 (it) * | 2013-11-29 | 2015-05-30 | Skf Ab | Complesso di tenuta a basso attrito, sistema di accoppiamento con un anello di cuscinetto ed unita¿ mozzo ruota equipaggiata con tale complesso di tenuta |
FR3018321B1 (fr) * | 2014-03-05 | 2016-12-09 | Ntn Snr Roulements | Palier a roulement equipe d’un dispositif d’etancheite comprenant une armature |
JP6466082B2 (ja) * | 2014-04-30 | 2019-02-06 | 内山工業株式会社 | 軸受密封装置 |
JP6748400B2 (ja) * | 2014-07-01 | 2020-09-02 | 内山工業株式会社 | 密封装置 |
JP6449622B2 (ja) * | 2014-11-07 | 2019-01-09 | 光洋シーリングテクノ株式会社 | 密封装置 |
JP6603078B2 (ja) * | 2015-08-31 | 2019-11-06 | Ntn株式会社 | 車輪用軸受装置 |
-
2016
- 2016-09-14 JP JP2017544430A patent/JP6876610B2/ja active Active
- 2016-09-14 KR KR1020187008967A patent/KR102035695B1/ko active IP Right Grant
- 2016-09-14 CN CN201680052522.3A patent/CN108027066B/zh active Active
- 2016-09-14 EP EP16853396.6A patent/EP3339693B1/en active Active
- 2016-09-14 WO PCT/JP2016/077064 patent/WO2017061242A1/ja active Application Filing
-
2018
- 2018-03-08 US US15/915,720 patent/US10612597B2/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015052350A (ja) * | 2013-09-06 | 2015-03-19 | 内山工業株式会社 | 軸受密封装置 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190024717A1 (en) * | 2017-07-18 | 2019-01-24 | Nakanishi Metal Works Co., Ltd. | Rotary seal |
CN109268506A (zh) * | 2017-07-18 | 2019-01-25 | 中西金属工业株式会社 | 旋转用密封件 |
US10634193B2 (en) * | 2017-07-18 | 2020-04-28 | Nakanishi Metal Works Co., Ltd. | Rotary seal |
JP2019066026A (ja) * | 2017-10-05 | 2019-04-25 | Nok株式会社 | 密封装置 |
CN109826956A (zh) * | 2019-04-04 | 2019-05-31 | 铁岭五星油膜橡胶密封研究所 | 浮动式双主唇组合密封圈 |
WO2020250579A1 (ja) * | 2019-06-12 | 2020-12-17 | Nok株式会社 | 密封装置 |
JPWO2020250579A1 (ja) * | 2019-06-12 | 2020-12-17 | ||
JP7228038B2 (ja) | 2019-06-12 | 2023-02-22 | Nok株式会社 | 密封装置 |
US11796004B2 (en) | 2019-06-12 | 2023-10-24 | Nok Corporation | Sealing device |
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KR20180045009A (ko) | 2018-05-03 |
EP3339693B1 (en) | 2020-06-10 |
JPWO2017061242A1 (ja) | 2018-07-26 |
EP3339693A1 (en) | 2018-06-27 |
US20180195558A1 (en) | 2018-07-12 |
CN108027066B (zh) | 2020-07-24 |
CN108027066A (zh) | 2018-05-11 |
US10612597B2 (en) | 2020-04-07 |
JP6876610B2 (ja) | 2021-05-26 |
EP3339693A4 (en) | 2019-05-22 |
KR102035695B1 (ko) | 2019-10-23 |
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