CN102656379A - Cassette seal for a radial bearing and installation method - Google Patents
Cassette seal for a radial bearing and installation method Download PDFInfo
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- CN102656379A CN102656379A CN2010800533025A CN201080053302A CN102656379A CN 102656379 A CN102656379 A CN 102656379A CN 2010800533025 A CN2010800533025 A CN 2010800533025A CN 201080053302 A CN201080053302 A CN 201080053302A CN 102656379 A CN102656379 A CN 102656379A
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- hollow cylinder
- box sealing
- circle
- sealing
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- 238000009434 installation Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims description 16
- 238000007789 sealing Methods 0.000 claims abstract description 90
- 230000008569 process Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 18
- 239000002245 particle Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F16C33/78—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
- F16C33/7883—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 mounted to the inner race and of generally L-shape, the two sealing rings defining a sealing with box-shaped cross-section
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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
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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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
- F16C43/045—Mounting or replacing seals
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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
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Automatic Assembly (AREA)
Abstract
The invention relates to a cassette seal for sealing a radial bearing, wherein the cassette seal has two rings (3, 4) which are movable relative to one another and the two rings (3, 4) have a hollow cylindrical part and a radially extending part, wherein the hollow cylindrical parts are radially opposite and the radially extending parts are axially opposite when in an operating state. The aim of the invention is to increase the effectiveness of the seal and to simultaneously enable simple installation of the cassette seals. Said aim is achieved in that an outer radius (Ra1) of the radially extending part of the second ring (3) is larger than the largest inner radius (Ri) of the hollow cylindrical part of the first ring (4) and smaller than the outer radius (Ra2) of the hollow cylindrical part of the first ring (4). It is thus possible according to the invention to create a labyrinth seal which better protects the interior of the cassette seals and thus also the rolling space of the radial bearing from outside influences, such as moisture and dirt particles, as the same material cost.
Description
Technical field
The present invention relates to a kind of box Sealing that is used to seal radial bearing; Wherein, The box Sealing has two circle rings that can move relative to each other, and these two circle rings have hollow cylinder part and extension radially, wherein; Diametrically opposed the putting of running state hollow core cylindrical part and radially the extension is mutually opposed in the axial direction; Wherein, the hollow cylinder of first lap ring part has the bigger external diameter of other any hollow cylinder parts than the box Sealing about spin axis, is used to be arranged in the supporting portion of radial bearing.
Background technique
Radial bearing is made up of the clutch shaft bearing part and second bearing part, wherein, through bearing part ground transmission radial force and in case of necessity two bearing parts or setting race ring above that have raceway, raceway is set for the rolling element that guides radial bearing.
Thus, produced the basic problem of seal designs, Sealing should seal the external world of the residing rolling of rolling element chamber for radial bearing.The radial bearing that moves outside the chamber for closure is wheel bearing, release bearing etc. for example, has the high risk that causes the rolling chamber to pollute by dirt particle basically.This causes rolling bearing to wear and tear quickly.Under the situation of king-sized dirt particle even cause the damage (so-called spot corrosion) of raceway.
Operating conditions for this bad luck; Designed following box Sealing in the past; This box Sealing is not only through axially protecting the rolling chamber in order to avoid water and dirt particle infiltrate with sealing lip radially; And on the longitudinal cross-section, protect by two for L shaped circle ring, these circle rings strut the space of an annular jointly, this annular space be set for the gap sealing spare that touches by nothing or by the scratch type of having mentioned, axially and the radial seal lip come the sealed rolling chamber.Two circle rings have the hollow cylinder part, and the hollow cylinder part can be connected through pressing base with bearing part usually, and therefore helps to stop corrosion in the axial direction to a great extent.In addition, through arrange opposed to each other mutually L shaped basically circle ring obtained the box Sealing is operated or is packed and pile up aspect advantage.
The different box Sealing that is used for wheel bearing is disclosed by EP 1,898 132 A1; Said box Sealing belongs to the type of being introduced according to generic; And distinguish through the arrangement of elastic member basically, these parts constitute dissimilar sealing lips.
Problematic is shortcoming in the compact type seal arrangement, to occur installing.Usually, two of the box Sealing circle rings are fixed on the bearing part through being pressed into successively.But because can not save the radial seal lip usually, so there is the radial seal lip in installation process, to return the danger of turning over towards the rolling chamber, wherein, the radial seal lip should be inserted on the hollow cylinder part of the second circle ring usually.Thus, the radial seal lip can not reach the set sealing surface on the second circle ring, thereby rolling bearing is inevitable at the shortest time internal fault.Fault is installed unfortunately can not be seen from the outside, and this is because the last second circle loop resistance of installing has kept off the sight line towards the radial seal lip.
Can be as an alternative, what can consider is, turns over and cancels the seal action of box Sealing for fear of returning of being introduced.This is for pointing to the hollow cylinder part of first lap ring in the radially extension of the second circle ring and therewith forming for the situation in radial seal slit.This also underuses the feasibility that forms sealing off gap and is disadvantageous equally therefore.
Summary of the invention
Therefore, task of the present invention is to propose a kind of box Sealing, and this box Sealing not only has the high sealing effect but also can install with simple and reliable mode.
This task solves through the radial bearing unit that starts said type; Make second to enclose the internal diameter of the external diameter of the radially extension of encircling, and the external diameter of the radially extension of the second circle ring is less than the hollow cylinder external diameter partly of first lap ring greater than the hollow cylinder part of first lap ring.
Arranged according to the present inventionly be: use the box Sealing to seal radial bearing, wherein, the box Sealing has two movable relative to each other circle rings.Two circle rings have hollow cylinder part and extension radially, wherein, and the said radial component that radially is also referred to as below the extension.Hollow cylinder part integrally is connected with radial component each other, and in the longitudinal section with respect to the spin axis of radial bearing or box Sealing, forms L shapedly basically respectively, promptly is perpendicular to one another basically.In addition, two circle rings are arranged like this: upwards put relatively in hollow cylinder part footpath, and radial component is mutually opposed in the axial direction.
Under running state, the outer further layout of hollow cylinder part that the hollow cylinder of first lap ring part is directly upwards encircled than second circle with respect to spin axis.In addition, the hollow cylinder of first lap ring part also shows as the directly upwards outer farthest with respect to spin axis of box Sealing and the hollow cylinder part of putting.The so-called so-called seal ring ring of first lap ring, wherein, the second circle ring is so-called disc in case of necessity.This first lap ring in the ideal case by the hollow cylinder partial fixing on clutch shaft bearing part and the second circle ring equally in the ideal case with its hollow cylinder partial fixing on second bearing part.Two bearing parts, two circle rings in other words rotate relative to one another, and that is to say, two bearing parts, two circle rings in other words for example can be used at the wheel bearing that is used for passenger vehicle and at the wheel bearing that is used for lorry.
Therefore, working principle according to the present invention is based on being described below, that is: the external diameter of the radial component of the second circle ring is greater than the internal diameter of the hollow cylinder part of first lap ring.The external diameter of radial component extends to the exterior face of radial component from spin axis.The internal diameter of hollow cylinder part extends to the hollow cylinder inside face that the said inside face of hollow cylinder part, has maximum radius partly from spin axis.Therefore, also can be said to is maximum internal diameter.
In addition, design is according to the present invention, and the external diameter of the radial component of the second circle ring is less than the external diameter of the hollow cylinder part of first lap ring.What therefore can realize is that radial component partly hides the hollow cylinder of first lap ring with its longitudinal end section at least in part in the axial direction.This covering has guaranteed that power can be delivered to the first lap ring in the axial direction from the second circle ring in process of press in.At this advantageously, two mentioned external diameters are very close to each other.Thus, between clutch shaft bearing part (it for example can be the outer ring ring or the wheel hub of lorry), realized very little radial seal slit.In addition, also between the hollow cylinder axial end portion partly of the end segments of the radial component of the second circle ring and first lap ring, formed the axial seal slit.Advantageously feasible is, with the more favourable gap sealing spare of constant material outlay manufacturing.
The axial seal slit relies on two circles to encircle location to axial each other basically and is fixed.Proposed to use the instrument that is pressed into for this reason; The instrument of being pressed into has conical inside face; This conical inside face is stretched out fartherly be in axially than long radius on; Thus, in the radial component process of press in of the second circle ring, the inside face of this taper is flexibly born load and is left from the radial direction motion with predetermined angle.At this, the final spacing that the tapering that is pressed into instrument has been confirmed two circle rings is the size in the axial seal slit between the hollow cylinder axial vane surface partly of end segments and the first lap ring of the annular portion of the second circle ring in other words.In other words, identical with the width in radial seal slit in the inner radius that is pressed into instrument with the axial distance that is pressed into face in the outer radius that is pressed into instrument.Bear load through the elasticity of radial component and guaranteed that radial component recoils to again in its home position after process of press in, and hereafter partly form desired axial seal slit with the hollow cylinder of first lap ring.At this, be noted that the not strong shape that must make the second circle ring bear load and its state that does not stress of tapering changes also non-resiliently.
Advantageously impossiblely be: turn to out or even return towards the rolling chamber and to turn in the sealing surface of sealing lip attaching troops to a unit from the second circle ring at the radial seal lip that can not save under many applicable cases.This problem is avoided through being pressed into two circle rings simultaneously effectively.Simultaneously needn't cancel preferred labyrinth-like Sealing.
In preferred embodiment, the first lap ring has the elastic part that has the radial seal lip.Elastic part also can be formed for other sealing lips of bearing part, for example axial seal lip or elastomer seal simultaneously.In addition, the first lap ring can depart from the radial oriented of strictness in ground, branch position in its radial component, so that realize elastic part is better kept.
Advantageously, rest on the hollow cylinder part of the second circle ring radial seal lip seal.Thus, the second circle rim bearing load dual functions because the second circle ring has formed the labyrinth-like Sealing, also has stainless corresponding surface sealing surface in other words, to be used for the radial seal lip on the hollow cylinder part.This for example can realize through following mode: the second circle ring (also having the first lap ring in case of necessity) is by the non-corrosive material manufacturing.
Advantageously, the hollow cylinder of circle ring partly is provided for the retainer ring ring.Thus, these circle rings (remove the formation sealing off gap or provide the sealing surface) have also been born fixed function.
Advantageously, the radial component (being also referred to as radially extension) of the second circle ring forms the radial gap Sealing with race ring and wheel hub.Sealing off gap is regarded as radial seal, and sealing off gap is obtaining definite and can at random extend in the axial direction through at least two radiuses aspect its stretching, extension.
Advantageously, the radial component of the second circle ring and the hollow cylinder of first lap ring partly form the axial seal slit.At this, the face of adjacency axial spacing to each other is determined, and wherein, circumferentially extending is not determined and can at random extends.
In favourable mode of execution, the longitudinal end section of the radial component of the second circle ring is provided in process of press in axial force transmission on the hollow cylinder part of first lap ring.This axial vane surface stack when the first lap ring and the second circle ring is particularly advantageous when big especially, and thus, very little face force density is possible, has avoided in process of press in the damage to the box Sealing.
When the mode of execution according to box Sealing of the present invention of inciting somebody to action is installed in the radial bearing; Wherein, The box Sealing has the radial seal lip; This radial seal lip is carried by the first lap rim bearing, and rests on hermetically on the hollow cylinder part of the second circle ring, has used to have the be pressed into instrument of conical shaft to exterior face.Conical shaft is stretching out manyly than the long radius place to exterior face than be in axially in small radii on.Power is delivered in the axial direction on the elastically-deformable radial component of the second circle ring by the instrument that is pressed into, wherein, the second circle ring is as the installation auxiliary member of first lap ring.The hollow cylinder part of the second circle ring directly is pressed into through being pressed into instrument in the axial direction, and the hollow cylinder of first lap ring part is pressed into through the radial component of the second circle ring indirectly.In process of press in, the external end segments quilt radially of the radial component of the second circle ring is accurately to pass in the hollow cylinder part of first lap ring and the width in the axial seal slit that will produce between the end segments.Thus, the hollow cylinder of first lap ring part and radial component have been in the position that these circle rings should occupy in radial bearing (especially wheel bearing) running state.Only the radial component of the second circle ring in process of press in the angle confirmed from being that the initial position deflection of the position the running state is come out equally.In case the instrument that is pressed into is towards axial reverse rollback, then the annular portion of the second circle ring flexibly removes load and moves to its running position.
Advantageously, the box Sealing can utilize sealing labyrinth-like portion equally advantageously to install.Labyrinth-like portion forms pre-sealed portion in the case, and this pre-sealed is provided with one or more collection grooves and the sealing off gap that has axial direction component and/or radial direction component in case of necessity.At this, at least one slit of labyrinth-like portion can in process of press in, be based in the installation process the second circle ring and first lap ring relatively elasticity bear load and temporary transient closed.
Other advantages of the present invention and structural scheme are obtained by description of drawings book and/or dependent claims.
Description of drawings
Below, introduce and set forth the present invention in more detail in conjunction with the embodiment shown in the accompanying drawing.
Wherein:
Fig. 1 illustrates mounted box Sealing,
Box Sealing before Fig. 2 is illustrated in and installs among Fig. 1,
Fig. 3 illustrates the box Sealing among Fig. 1 during installation,
Box Sealing after Fig. 4 is illustrated in and installs among Fig. 1, and
Box Sealing when Fig. 5 is illustrated in preparatory the installation among Fig. 1.
Embodiment
Fig. 1 illustrates mounted box Sealing.This box Sealing is installed between the clutch shaft bearing part 1 and second bearing part 2, and wherein, clutch shaft bearing part 1 for example can be outer ring ring or wheel hub, and bearing part 2 for example can be the inner ring ring or can be wheel hub as an alternative.
The radial component of two circle rings 3,4 is mutually opposed in the axial direction, wherein, between the radial component of two circle rings 3,4, has axial seal lip 8, and this axial seal lip 8 is formed by elastic part 5, and elastic part 5 is carried by the radial part branch of first lap ring 4 again.The radial component of first lap ring 4 is between the rolling element of not drawing of radial component and radial bearing of the second circle ring 3; Rolling element is with respect to its load of carrying in the radial direction of spin axis R and be introduced in the raceway for this reason; Raceway is arranged in the bearing part 1,2, perhaps is arranged on bearing part 1,2 power to cooperate in the part that links to each other.
Rolling element is in the rolling chamber that only part is drawn, and this rolling chamber is sealed through the box Sealing in the axial direction.Seal action mainly comes from spring-loaded radial seal lip 7, and sealing lip 7 is protected through axial seal lip 8.Radial seal lip 6 prevents that moisture from infiltrating, and moisture for example can be through corrosion infiltration below the hollow cylinder part of the second circle ring 3.
Advantageously; Radially the extending radial component and can form radial seal slit 11 for the clutch shaft bearing part 1 of the bearing part of rotation of the second circle ring 3, radial seal slit 11 transit in the axial seal slit 12 of hollow cylinder between partly of end segments 13 and circle ring 4 of radial component of the second circle ring 3.Form the labyrinth-like Sealing thus, in case axial seal lip 8 because fret wear and no longer can be hermetically by putting, then this labyrinth-like Sealing has prevented that advantageously moisture and dirt particle are extruded onto axial seal lip 8 or even radial seal lip 7.
Appreciable is that second encloses the external diameter R of the radial component of ring 3
A1Be in the second external diameter R about spin axis
A2With internal diameter R
iBetween the interval in, that is:
R
a2>R
a1>R
i。
External diameter R
A2Be the external diameter of the hollow cylinder part of first lap ring, the footpath of promptly whole box Sealing makes progress outer farthest and hollow cylinder radius partly that put.Contrast ground with it, internal diameter R
iIt is the maximum inner diameter of hollow cylinder part.Advantageously, these two external diameters are about equally:
R
a2≈R
a1。
Obtain especially little radial seal slit 11 thus, and for the radial component of the second circle ring 3 is pressed into, sufficiently existed axial vane surface overlapping.
The box Sealing of Fig. 1 before Fig. 2 is illustrated in and installs.
Yet; Appliedly be pressed into instrument 9 on the whole ringwise; But directionally has the conical face 14 that is pressed in the axial direction with respect to the box Sealing; It is more outstanding towards the direction of the box Sealing that will install in the axial direction in bigger radius to be pressed into face 14, and therefore, in radially outer zone, before being pressed into, at first comes in contact with the radial component of the second circle ring 3.The radial component of the second circle ring 3 flexibly bears load, and the direction towards the rolling chamber tilts slightly, and the direction towards the first lap ring tilts in other words.If improve the power that is pressed into; Then be pressed into the radial component that instrument 9 contacts connect first lap ring 3; And the radial component of first lap ring 3 contacts the hollow cylinder part that connects first lap ring 4 again; Thus, two circle rings 3,4 can be pressed into simultaneously between clutch shaft bearing part 1 and second bearing part 2 radial gap in, make two circle rings 3,4 partly be fixed on the corresponding bearing part by pressing base through its hollow cylinder.
At last; When two hollow cylinder parts of two circle rings contact with bearing part 1,2; Rest on conical being pressed on the length 14 the radial component plane type of the second circle ring 3; Promptly occupy identical angle, as being pressed into face 14 with respect to the taper shape in the longitudinal cross-section of spin axis R with respect to radius.
In this process, radial seal lip 7 takes place by putting with axial seal lip 8, thus, can advantageously avoid returning of one of two lips to turn over, and this is because radial seal lip 7 lies on the sealing surface when being pressed into axial seal lip 8 all the time.
Fig. 3 illustrates the box Sealing among Fig. 1 during installation.The final running position of box Sealing does not also reach; Yet obviously appreciablely be: the end segments 13 of the radial component of the second circle ring 3 also both upwards contacted more outer end with the footpath that is pressed into instrument 9 all the time, and the hollow cylinder with first lap ring 4 partly contacts again.
Being pressed into instrument 9 has been in the backhaul with respect to the axial opposed direction that is pressed into direction.The hollow cylinder part has been in the position that is designed for operation.Only the radial component of the second circle ring 3 also is in elasticity all the time and bears in the state of load.But the radial component resilience in the axial direction of the second circle ring 3 makes the exterior face of the radial component that can form the axial seal slit 12 and the second circle ring 3 seal in the axial direction with the exterior face of bearing part.Prevented thus: the water-spraying from exterior face possibly find the path that gets into radial gap 11.
Box Sealing after Fig. 4 is illustrated in and installs among Fig. 1, wherein, second circle encircles 3 the complete resilience of radial component and can pull out being pressed into instrument 9.
Box Sealing when Fig. 5 is illustrated in preparatory the installation among Fig. 1.
Advantageously feasible is, the circle ring of box Sealing is pressed in the state of installing in advance together.The state of installing in advance can be realized through following mode; That is: two circle rings 3,4 are assembled by conical installation auxiliary member 10, make the radial seal lip rest on the attaching troops to a unit on the sealing surface of this radial seal lip of hollow cylinder part of the second circle ring reliably.Thus, also guaranteed: through radial occlusive force, radial seal lip 7 prevents the disengagements of two circle rings when transporting through force closure.
In a word; The present invention relates to a kind of box Sealing that is used to seal radial bearing; Wherein, the box Sealing has two circle rings that can move relative to each other and two circle ring and has hollow cylinder part and extension radially, wherein; Diametrically opposed the putting of running state hollow core cylindrical part, and radially the extension is mutually opposed in the axial direction.Target is: the efficient of raising Sealing and while can be realized the simple installation of box Sealing.This realizes through following mode: the external diameter of the radially extension of the second circle ring is greater than the maximum inner diameter of the hollow cylinder part of first lap ring, and less than the external diameter of the hollow cylinder part of first lap ring.Thus, can under the situation of same material, produce the labyrinth-like Sealing, the rolling chamber that it is protected the inside of box Sealing better and then also has radial bearing is with well protected against external influences, like moisture and dirt particle.
The reference character table
1 clutch shaft bearing part
2 second bearing parts
3 second circle rings
4 first lap rings
5 elastic parts
6 radial seal lips
7 radial seal lips
8 axial seal lips
9 are pressed into instrument
10 install auxiliary member
11 radial seal slits
12 axial seal slits
13 end segments
14 taper shapes are pressed into face
Claims (10)
1. be used to seal the box Sealing of radial bearing; Wherein, said box Sealing has two circle rings that can move relative to each other (3,4), and two circle rings (3,4) have hollow cylinder part and extension radially; Wherein, In running state, diametrically opposed the putting of said hollow cylinder part, and said radially extension is mutually opposed in the axial direction; Wherein, the said hollow cylinder of said first lap ring (4) part and spin axis partly have bigger external diameter (R than any other hollow cylinder of said box Sealing relatively
A2), inner in order to the bearing part that is arranged in said radial bearing, it is characterized in that the external diameter (R of the said radially extension of the said second circle ring (3)
A1) greater than the internal diameter (R of the said hollow cylinder part of said first lap ring (4)
i), and the external diameter (R of the said radially extension of the said second circle ring (3)
A1) less than the external diameter (R of the said hollow cylinder part of said first lap ring (4)
A2).
2. box Sealing according to claim 1, wherein, said first lap ring (4) has the elastic part (5) that has radial seal lip (7).
3. box Sealing according to claim 2, wherein, said radial seal lip (7) rests on the said hollow cylinder part of the said second circle ring (3) hermetically.
4. one of require described box Sealing according to aforesaid right, wherein, at least one in two said hollow cylinders parts is used for fixing corresponding said circle ring (3,4).
5. according to one of aforesaid right requirement described box Sealing, wherein, the longitudinal end section (13) of the said radially extension of the said second circle ring (3) forms the radial gap Sealing with race ring or wheel hub.
6. according to one of aforesaid right requirement described box Sealing; Wherein, the said longitudinal end section (13) of the said radially extension of the said second circle ring (3) partly forms the axial slits Sealing with the said hollow cylinder of said first lap ring (4).
7. according to one of aforesaid right requirement described box Sealing; Wherein, the said longitudinal end section (13) of the said radially extension of the said second circle ring (3) is used in the axial direction power being delivered at process of press in the said hollow cylinder part of said first lap ring (4).
8. one of require described box Sealing according to aforesaid right, wherein, said box Sealing has sealing labyrinth-like portion, and said sealing labyrinth-like portion forms pre-sealed portion.
9. the box Sealing is installed to the method in the radial bearing; Wherein, Radial seal lip (7) is carried by the first lap ring (4) of said box Sealing and in process of press in, rests on hermetically on the hollow cylinder part of the second circle ring (3) of said box Sealing; It is characterized in that, be pressed into instrument (9) and said box Sealing be pressed into by the axial force transmission on from the said second circle ring (3) to said first lap ring (4) to exterior face (14) with conical shaft.
10. installation method according to claim 9; Wherein, The radially extension of said first lap ring (3) is flexibly born load through said conical shaft to exterior face (14) as follows, that is: can regulate for seal action spacing required, from the said hollow cylinder part of said first lap ring to the said radially extension of the said second circle ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412369.3A CN104314990B (en) | 2009-11-24 | 2010-11-17 | Cassette seal and installation method for journal bearing |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009055647.8A DE102009055647B4 (en) | 2009-11-24 | 2009-11-24 | Installation procedure of a cartridge seal in a radial bearing |
| DE102009055647.8 | 2009-11-24 | ||
| PCT/EP2010/067664 WO2011064126A2 (en) | 2009-11-24 | 2010-11-17 | Cassette seal for a radial bearing and installation method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410412369.3A Division CN104314990B (en) | 2009-11-24 | 2010-11-17 | Cassette seal and installation method for journal bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102656379A true CN102656379A (en) | 2012-09-05 |
| CN102656379B CN102656379B (en) | 2017-02-22 |
Family
ID=43569367
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080053302.5A Expired - Fee Related CN102656379B (en) | 2009-11-24 | 2010-11-17 | Cassette seal for a radial bearing and installation method |
| CN201410412369.3A Expired - Fee Related CN104314990B (en) | 2009-11-24 | 2010-11-17 | Cassette seal and installation method for journal bearing |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410412369.3A Expired - Fee Related CN104314990B (en) | 2009-11-24 | 2010-11-17 | Cassette seal and installation method for journal bearing |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2504591A2 (en) |
| CN (2) | CN102656379B (en) |
| BR (1) | BR112012012267A2 (en) |
| DE (1) | DE102009055647B4 (en) |
| RU (1) | RU2557102C2 (en) |
| WO (1) | WO2011064126A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2949972B1 (en) * | 2014-05-26 | 2017-03-15 | Carl Freudenberg KG | Cassette seal |
| JP6471597B2 (en) * | 2015-04-17 | 2019-02-20 | 株式会社ジェイテクト | Manufacturing method of wheel bearing device |
| JP6477204B2 (en) * | 2015-04-28 | 2019-03-06 | 株式会社ジェイテクト | Method of assembling bearing device for wheel |
| CN107165945B (en) * | 2017-07-24 | 2023-05-26 | 江苏新瑞齿轮***有限公司 | Gear box and bearing sealing mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6111022U (en) * | 1984-06-25 | 1986-01-22 | エヌティエヌ株式会社 | Bearing sealing device |
| US20040256812A1 (en) * | 2003-04-04 | 2004-12-23 | Hiroshi Terazawa | Combination seal and bearing unit |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1733752A1 (en) * | 1989-05-31 | 1992-05-15 | С.И.Иванов и С.Ф.Левкин | Method for assembling bearing seal |
| JP3304602B2 (en) * | 1994-04-25 | 2002-07-22 | 日本精工株式会社 | A method of arranging balls constituting a ball bearing at equal intervals |
| JP4099532B2 (en) * | 2002-04-03 | 2008-06-11 | 内山工業株式会社 | Combination seal |
| JP2004084796A (en) * | 2002-08-27 | 2004-03-18 | Koyo Seiko Co Ltd | Sealing device of rolling bearing |
| JP2004084795A (en) * | 2002-08-27 | 2004-03-18 | Koyo Seiko Co Ltd | Sealing device of rolling bearing |
| JP2004169761A (en) * | 2002-11-18 | 2004-06-17 | Nsk Ltd | Double row tapered rolling bearing with combined seal ring |
| JP4924789B2 (en) | 2005-06-28 | 2012-04-25 | Ｎｏｋ株式会社 | Sealing device |
| JP2007064295A (en) * | 2005-08-30 | 2007-03-15 | Jtekt Corp | Ring-shape sealing device assembly method for roller bearing |
| JP5003862B2 (en) * | 2006-03-31 | 2012-08-15 | Ｎｏｋ株式会社 | Sealing device |
| JP2007298076A (en) * | 2006-04-28 | 2007-11-15 | Jtekt Corp | Ring type sealing device of roller bearing and its manufacturing method |
| JP2008128397A (en) * | 2006-11-22 | 2008-06-05 | Jtekt Corp | Sealing device |
| DE102007057962B4 (en) * | 2007-12-01 | 2022-04-14 | Schaeffler Technologies AG & Co. KG | Cassette seal and wheel bearing with the cassette seal |
| CN201330799Y (en) * | 2008-11-30 | 2009-10-21 | 湖北新火炬科技股份有限公司 | Hub assembly with multi-lip and multi-chamber seal structure |
| CN201339657Y (en) * | 2008-12-08 | 2009-11-04 | 新昌金涛轴承有限公司 | Double-row angular contact ball bearing |
-
2009
- 2009-11-24 DE DE102009055647.8A patent/DE102009055647B4/en active Active
-
2010
- 2010-11-17 BR BR112012012267A patent/BR112012012267A2/en not_active Application Discontinuation
- 2010-11-17 CN CN201080053302.5A patent/CN102656379B/en not_active Expired - Fee Related
- 2010-11-17 WO PCT/EP2010/067664 patent/WO2011064126A2/en active Application Filing
- 2010-11-17 RU RU2012126139/11A patent/RU2557102C2/en not_active IP Right Cessation
- 2010-11-17 EP EP10784477A patent/EP2504591A2/en not_active Ceased
- 2010-11-17 CN CN201410412369.3A patent/CN104314990B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6111022U (en) * | 1984-06-25 | 1986-01-22 | エヌティエヌ株式会社 | Bearing sealing device |
| US20040256812A1 (en) * | 2003-04-04 | 2004-12-23 | Hiroshi Terazawa | Combination seal and bearing unit |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112012012267A2 (en) | 2016-04-26 |
| RU2012126139A (en) | 2013-12-27 |
| DE102009055647B4 (en) | 2019-04-18 |
| CN104314990A (en) | 2015-01-28 |
| WO2011064126A3 (en) | 2011-08-18 |
| DE102009055647A1 (en) | 2011-05-26 |
| RU2557102C2 (en) | 2015-07-20 |
| CN102656379B (en) | 2017-02-22 |
| CN104314990B (en) | 2018-04-10 |
| EP2504591A2 (en) | 2012-10-03 |
| WO2011064126A2 (en) | 2011-06-03 |
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