CN206617446U - Bearing seal and drawing fixture - Google Patents

Bearing seal and drawing fixture Download PDF

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Publication number
CN206617446U
CN206617446U CN201621079251.4U CN201621079251U CN206617446U CN 206617446 U CN206617446 U CN 206617446U CN 201621079251 U CN201621079251 U CN 201621079251U CN 206617446 U CN206617446 U CN 206617446U
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CN
China
Prior art keywords
mentioned
lid
hole
elastomeric material
bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201621079251.4U
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Chinese (zh)
Inventor
木村大碁
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NTN Corp
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NTN Corp
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Filing date
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Publication of CN206617446U publication Critical patent/CN206617446U/en
Withdrawn - After Issue legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • 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
    • 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
    • F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • 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
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
    • 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
    • F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
    • F16C33/7853—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Sealing Of Bearings (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Gasket Seals (AREA)

Abstract

The utility model provides a kind of bearing seal, make the annular plate section (10) of arbor (4) that the elastomeric material of the sealing lip (1,2) of bearing seal adheres to, form the hole (12) of insertion vertically, by the elastomeric material, the lid for being attached to the complete cycle scope for the plate thickness surface (14) to form hole (12) and blocking hole (12) completely is formed.The outer side gap (15) of the outer surface of (13) and the part disjunction in addition to (13) are covered of elastomeric material will be covered by being formed along the complete cycle of plate thickness surface (14), and form the private side gap (17) of the part disjunction in addition to (13) are covered of inner surface and elastomeric material that (13) will be covered along the scope more than half cycle of plate thickness surface (14).

Description

Bearing seal and drawing fixture
Technical field
The utility model is related to bearing seal used in the sealing of rolling bearing, and in order to which bearing is sealed Part removes used drawing fixture from lasso.
Background technology
General bearing has the sealing lip formed by elastomeric material and the ring-type for being attached with the elastomeric material with seal Arbor, can be installed by the way that the press-in to lasso is chimeric.
In the past, in order to easily remove bearing seal, proposition has to be formed vertically in the way of being circumferentially distributed The hole of the annular plate section of insertion arbor, and the bearing seal of the lid with the foregoing elastomeric material formation closure hole.It is this Bearing seal inserts the hook portion of drawing fixture from the hole, the hook portion is hooked from Bearing inner side from Bearing outer perforate Bearing seal, pull vertically the hook portion so as to by bearing seal from lasso drawing.It is used as such drawing Fixture, is utilized stripping attachment used in the drawing in gear, belt wheel, bearing etc. (following patent documents 1,2).
Patent document 1：Japanese Unexamined Patent Publication 9-317897 publications (particularly Fig. 6, paragraph 0039)
Patent document 2：Japanese Unexamined Patent Publication 2008-281025 publications (particularly Fig. 2,3, paragraph 0030)
It is not different in the case of the hole for blocking annular plate section completely with lid as the bearing seal of patent document 1 Thing invades the worry of Bearing inner from hole, and sealing is excellent.However, it is desirable to puncture lid with sharp keen instrument, or use blade work Have the perforate operation cut, now there is the impaired worry of the parts of bearings such as retainer, the rolling element of Bearing inner.
On the other hand, it is advance in the case where cap-shaped is into gap as the bearing seal of patent document 2, although no Perforate operation is needed, but is existed due to the pressure change of the Bearing inner during bearing operation, and it is different to cause gap to expand Thing is inhaled into the worry of Bearing inner.
Utility model content
In view of above-mentioned background, the utility model problem to be solved is not sacrifice bearing hermetically preventing with seal Carry out the damage of the bearing during perforate operation of its drawing.
In order to realize above-mentioned problem, the utility model uses following structures, and bearing has by elastomeric material shape with seal Into sealing lip and be attached with above-mentioned elastomeric material ring-type arbor, and the annular plate section to above-mentioned arbor is entered vertically The hole of row insertion is formed in the way of being circumferentially distributed, and the lid for blocking above-mentioned hole is formed by above-mentioned elastomeric material, above-mentioned lid The complete cycle scope for the plate thickness surface to form above-mentioned hole is attached to, and blocks the hole completely, is formed with along the whole of above-mentioned plate thickness surface Week by the outer surface of above-mentioned lid and the outer side gap of the part disjunction in addition to the lid of above-mentioned elastomeric material, be formed with along The scope more than half cycle of above-mentioned plate thickness surface divides the part in addition to the lid of the inner surface of above-mentioned lid and above-mentioned elastomeric material Disconnected private side gap.
Preferably, be attached to above-mentioned annular plate section inside lateral plates and with the continuous connecting portion of inner surface of above-mentioned lid Formed by above-mentioned elastomeric material.
According to said structure, lid is attached to the complete cycle scope to form porose plate thickness surface, and hole is blocked completely, so The sealing of bearing seal will not be sacrificed, in addition, it is not necessary that make the other parts of elastomeric material and lid continuous.The lid The part disjunction in addition to the lid of complete cycle and elastomeric material of the off-balancesheet face by outer side gap along plate thickness surface, the interior table of the lid Face is broken by private side gap along the scope more than half cycle of plate thickness surface, therefore, it is possible to by outer side gap outside bearing Portion distinguish lid position, and only from outer side vertically press lightly on lid just can by plate thickness surface with lid thin attachment portion Stave.It therefore, there is no need to carry out perforate operation using sharp keen instrument, blade tool.
In addition, the utility model further relates to drawing fixture, possess：Axle is pulled, it, which has, is inserted into above-mentioned bearing use Hook portion in the above-mentioned hole of seal and the external thread part that can be integratedly axially moveable with the hook portion；Supporting mass, it has The supporting board for the opening for supplying above-mentioned external thread part to be capable of insertion vertically is formed with configuration corresponding with above-mentioned hole and passed through Contact with the lasso that is provided with above-mentioned bearing seal and in the radially and axially cradle portion of the above-mentioned supporting board of supporting； And nut, it from the side opposite with above-mentioned lasso can be screwed together in above-mentioned external thread part relative to above-mentioned supporting board.
So, the utility model is by using said structure, even if forming the annular plate section in arbor with lid closure completely Hole, also because the perforate operation of sharp tool, blade tool need not be used, bearing seal can not be sacrificed Damage of the bearing when hermetically preventing the perforate operation row.
Brief description of the drawings
Figure 1A is the sectional view of the bearing seal for the embodiment for representing the utility model.
Figure 1B is the partial sectional view of state for representing to open hole 12 from Figure 1A state.
Fig. 2A is the enlarged side view for the circumferential part that the bearing seal shown in Figure 1A is represented from outer side.
Fig. 2 B are that the enlarged side view near the lid of the bearing seal shown in Figure 1A is represented from Bearing inner side.
Fig. 3 is the sectional view of the drawing fixture for the embodiment for representing the utility model.
Fig. 4 is the front view of the hook portion of the drawing fixture for the embodiment for representing the utility model.
Fig. 5 is the top view of the drawing fixture shown in Fig. 3.
Fig. 6 is the sectional view of appearance for representing to extract bearing with seal by the drawing fixture shown in Fig. 3.
Embodiment
Hereinafter, one embodiment of the utility model is illustrated based on accompanying drawing.
As shown in Figure 1A, the bearing of embodiment has the sealing lip 1,2 and waist formed by elastomeric material with seal Portion 3 and the arbor 4 for being attached with the elastomeric material.The bearing seal is by being installed in inside and outside rolling bearing 5 possesses Lasso 6,7 in outside lasso 7 inner peripheral end thereof, and as by the inside (Bearing inner) of rolling bearing 5 and outer portion Every spacer.The sealing surface 8 of lasso 6 side of the sealing lip 1,2 with being present in inner side coordinates and plays the sealing work as oil sealing With.
The central shaft of the bearing seal is consistent with the bearing centre axle of rolling bearing 5 in design.Hereinafter, will be along The direction of central shaft is referred to as " axial direction ", and the direction at a right angle with central shaft is referred to as into " radial direction ", by around the central shaft Circumference is to referred to as " circumference ".In addition, the citing of rolling bearing 5 illustrates taper roll bearing, but the bearing seal should It is not particularly limited with the bearing type of object, can also apply to cylinder roller bearing, ball bearing etc..
Arbor 4 has the outer circumferential axial direction with the annular plate section 10 of circumferential complete cycle scope formation and from annular plate section 10 curved Bent flange part 11.Arbor 4 is overall general integrally formed by punch process.
Sealing lip 1,2 prolongs from the waist 3 adhered in the way of across annular plate section 10 towards sealing surface 8 in tongue-shaped Stretch.Citing illustrates the structure with two panels footpath labiad in the example shown, but the piece number of sealing lip, is footpath labiad or axial lip, Whether contact and be not relevant for sealing surface in addition.
The flange part 11 of arbor 4 is pressed into the inner peripheral end thereof for being embedded in lasso 7.Chimeric by the press-in, above-mentioned bearing is used Seal is installed in lasso 7.
As shown in Figure 1B, vertically the hole 12 of the annular plate section 10 of insertion arbor 4 in the way of being distributed on circumferentially Formed.As shown in Figure 1A, Fig. 2A, the lid 13 of plugging hole 12 with sealing lip 1,2, the identical elastomeric material of waist 3 by forming.In figure In showing, as hole 12, what the direction of an exemplified tangent line for being set to the periphery by major axis along annular plate section 10 was determined Elongated hole, and by hole 12 with the circumferential structure configured at equal intervals at two.
Thickness of slab, the shape in hole 12 and configuration for arbor 4, it may be considered that mechanical strength required by arbor 4, remove The form of drawing fixture used in the bearing seal, assign when removing its bearing seal external force size, Lid 13 or the shaping difficulty in hole 12, suitably determine not excessively to deform near hole 12 when it is removed.For example, hole 12 also may be used To be circular hole, square hole, elliptical aperture etc., can also it is arranged circumferentially at three more than.
Lid 13 is attached to the complete cycle scope for the plate thickness surface 14 of one week to form hole 12, and the hole 12 is blocked completely.
Complete cycle along plate thickness surface 14 is formed with by the outer surface of lid 13 and foregoing elastomeric material in addition to the lid 13 Part (for example, waist 3) disjunction outer side gap 15.Here, the outer surface of lid 13 refers in the axis projection area in hole 12 The cap surface that domain is exposed to Bearing outer side.Outer side gap 15 is formed as being recessed to the outside side plate of annular plate section 10 vertically The slit-shaped in face more than 16.
On the other hand, as shown in Figure 1A, Fig. 2 B, it is formed with lid 13 along the scope more than half cycle of plate thickness surface 14 The private side gap 17 of the part disjunction in addition to the lid 13 of surface and foregoing elastomeric material.Here, the inner surface of lid 13 Refer to the cap surface exposed in the axis projection field in hole 12 to Bearing inner side.Private side gap 17 is formed as being recessed vertically To the slit-shaped of the inside lateral plates more than 18 of annular plate section 10.
As shown in Figure 1A, the thickness of lid 13 and the facies posterior hepatis of plate thickness surface 14 in the axial direction, the thickness of slab than plate thickness surface 14 is thin.Should Thickness, outer side gap 15 and the axial depth-set in private side gap 17 of facies posterior hepatis are to stand rolling bearing 5 The axle allowed is by internal pressure change and is able to maintain that lid 13 and the size of the attachment of plate thickness surface 14.
In addition, be attached to annular plate section 10 inside lateral plates 18 and with the continuous connecting portion 19 of inner surface of lid 13 by Foregoing elastomeric material is formed.Private side gap 17 is formed as one week of not enough plate thickness surface 14, with the private side gap 17 The continuous mode of inner surface of interrupt unit and lid 13 is formed with connecting portion 19.Parallel two of the connecting portion 19 along plate thickness surface 14 The straight part of a side in the straight part on side.Therefore, it is pressed vertically from outer side in lid 13 and causes lid 13 and plate When the attachment in thick face 14 is destroyed, as shown in Figure 1B, the cod private side centered on connecting portion 19 of lid 13 lodges, and protects Hold the state being connected by connecting portion 19 with arbor 4.
Sealing lip 1,2, waist 3, the elastomeric material of each lid 13 and connecting portion 19 are formed, by storing arbor 4 Sulfuration adhesion is carried out to arbor 4 in mould, their shaping and the attachment to arbor 4 can be implemented simultaneously.The elastomeric material Can be suitably using the oil sealing rubber such as nitrile rubber, silicon rubber, fluorubber.
Fig. 3 represents the drawing fixture that the bearing seal is removed and used from lasso 7.The drawing fixture has It is standby：As the pulling axle 100 for assigning the bearing bang path of seal motive force；Radially and on axial direction determining to pull Supporting mass 101 of the axle 100 relative to the position of lasso 7；And in order that axle 100 is pulled relative to supporting mass 101 and lasso 7 nuts 102 for being axially moveable and using.
Axle 100 is pulled to include：Hook portion 103；Link axle portion 104；Fasten hook portion 103 and link the bolt 105 of axle portion 104； And can be with linking the external thread part 106 that axle portion 104 and nut 102 are screwed togather respectively.
On the other hand, supporting mass 101 includes：Being formed with configuration corresponding with hole 12 can be along axle for external thread part 106 To the supporting board 108 of the opening 107 of insertion；Relative to the cradle portion 109 that lasso 7 supports supporting board 108；And fastening branch The bolt 110 of frame portion 109 and supporting board 108.
Hook portion 103 as shown in Figure 3, Figure 4, with the terminal surface from the flat part axially extended to radially bending.Hook The flat part in portion 103 is bolted 105 sides for being anchored on downside in the figure for linking axle portion 104 as shown in Figure 3.As schemed Shown in 1B, Fig. 3, the terminal surface of hook portion 103 is formed to be axially inserted into the circular arc planar in hole 12.By the end of hook portion 103 The curved surface that face is set to circular arc planar is in order to will not be because of the end surface damage Bearing inner of hook portion 103 when being erroneously inserted into deeper Retainer etc..
As shown in figure 3, linking a side of the upside in figure of axle portion 104, with can be from the external screw thread being made up of stud The internal thread that one end of downside is screwed into the figure in portion 106.It is screwed into by this makes external thread part 106 with linking the one of axle portion 104 Change.
The external thread part 106 of the opening 107 of insertion supporting board 108 vertically, than upside in the figure of supporting board 108 Plate face also protrude upward.The end of upside from the figure of the external thread part 106 of nut 102 is screwed into external thread part 106.
As shown in Fig. 3, Fig. 5, cradle portion 109 by by the contact with lasso 7 by support plate on axially and radially A pair of pin that portion 108 is supported on lasso 7 are constituted.Each pin of cradle portion 109 using the diameter line of the chimeric surface of lasso 7 as center, And with the end (end of downside in Fig. 3) that there is width in the circumferential and can be abutted with chimeric surface and side, profit It can be positioned with this pair of end portions relative to lasso 7 radially and on axial direction.
It is diametrically long elongated hole for the opening 107 that external thread part 106 passes through.In addition, for supporting board 108 and support The elongated hole of the opening 111 that the bolt 110 of the fastening in portion 109 passes through also diametrically to be grown along opening 107.Here, it will open Mouth 107,111 is set to elongated hole and is able to pull on axle 100, the bearing position phase of a pair of foot of composition cradle portion 109 It is radially adjusted for supporting board 108, with can by the drawing fixture in the different rolling bearing of key dimension, bearing with close Sealing can be used.
In the case where being removed the bearing with seal using the drawing fixture, for example, as shown in Fig. 3, will roll The horizontal positioned of dynamic bearing 5.And hook portion 103 is used alone, the lid 13 shown in Figure 1A is from Bearing outer side by hook portion 103 Terminal surface is pressed.Thus, lid 13 and the facies posterior hepatis of plate thickness surface 14 are destroyed, during lid 13 is with connecting portion 19 as illustrated in figure ib Heart lodging hole 12 is opened, and the state in the hole 12 opened is inserted as hook portion 103.Moreover, setting supporting from the top of lasso 7 Body 101.Moreover, the hook portion 103 for linking axle portion 104 and patchhole 12 is bolted 105 fastenings, in addition, pull axle 100 turn into by The state that plate portion 108 is hooked is supported by nut 102.Axle 100 is pulled to be moved as needed along opening 107, to adjust the axle Hold the hook situation with hook portion 103 with seal.Identical operation is carried out to whole grades of lid 13.Each nut 102 is rotated afterwards Rotate.The axial force of the external thread part 106 produced due to the rotation along with nut 102, pulls axle 100 overall such as Fig. 6 institutes Show that (upside in figure) is mobile vertically relative to supporting mass 101 and lasso 7, passes through its hook portion 103, above-mentioned bearing seal It is pulled vertically.Therefore, by somewhat rotating each nut 102 successively, the bearing seal is drawn from lasso 7.
The bearing is part as described above with seal, and such lid 13 is attached to the thickness of slab to form hole 12 as shown in Figure 1A The complete cycle scope in face 14, and hole 12 is blocked completely, so the sealing of the bearing seal will not be sacrificed.
In addition, for the bearing seal, by complete cycle of the outer side gap 15 along plate thickness surface 14 by lid 13 Outer surface and elastomeric material the part disjunction in addition to the lid 13, the half cycle by private side gap 17 along plate thickness surface 14 Scope above is by the inner surface disjunction of lid 13, so confirming to distinguish from Bearing outer by the observation to outside latasuture gap 15 The not other position of lid 13, the thin attachment of plate thickness surface 14 and lid 13 can just be destroyed by pressing lightly on lid 13 from outer side only in the axial direction Portion.Therefore, the bearing need not use sharp keen instrument, blade tool to carry out the perforate operation of drawing with seal, can Damage of the bearing when preventing from carrying out the perforate operation.
In addition, because the bearing be attached to seal annular plate section 10 inside lateral plates 18 and with the interior table of lid 13 The continuous connecting portion 19 in face is formed by elastomeric material, thus carry out perforate operation when, can prevent lid 13 separated with arbor 4 and The situation (reference picture 1B) fallen to Bearing inner.
In addition, the drawing fixture possesses as shown in Figure 3, Figure 4：Axle 100 is pulled, it, which has, is inserted into bearing sealing Hook portion 103 in the hole 12 of part and the external thread part 106 that can be integratedly axially moveable with hook portion 103；Supporting mass 101, its With the supporting board that the opening 107 for being capable of insertion vertically for external thread part 106 is formed with configuration corresponding with hole 12 108 and by the contact of the lasso 7 with being provided with the bearing seal radially and on axial direction by supporting board 108 The cradle portion 109 supported relative to lasso 7；And nut 102, can be relative to supporting board 108 from opposite with lasso 7 one Side is screwed together in external thread part 106 and screwed togather, thus it is different from the stripping attachment of previous example, do not born even in the inner side of lasso 7 The axis body of drawing fixture, also can extract the bearing seal from lasso 7.
Particularly, for the drawing fixture, the cradle portion 109 of supporting mass 101 utilizes the chimeric surface of the lasso 7 in outside Supported, compared with situation about being supported using the chimeric surface of the lasso 6 of inner side, the axis of rolling with easy reply path The advantage held.
It is believed that whole points of current disclosed embodiment are illustration rather than limitation.Therefore, the utility model Scope be not, by above-mentioned explanation but by the Range Representation of claim, to be equal and scope with claims meaning In equivalent whole changes are all contained in.
Description of reference numerals
1st, 2 ... sealing lips；3 ... waists；4 ... arbors；5 ... rolling bearings；6th, 7 ... lassos；10 ... annular plate sections；12… Hole；13 ... lids；14 ... plate thickness surfaces；15 ... outer side gaps；16 ... outside lateral plates；17 ... private side gaps；18 ... private sides Plate face；19 ... connecting portions；100 ... pull axle；101 ... supporting masses；102 ... nuts；106 ... external thread parts；107 ... openings； 108 ... supporting boards；109 ... cradle portions.

Claims (3)

1. a kind of bearing seal, it has the sealing lip formed by elastomeric material and the ring for being attached with above-mentioned elastomeric material The arbor of shape, and the hole of the insertion shape in the way of being circumferentially distributed is carried out to the annular plate section of above-mentioned arbor vertically Into, the lid for blocking above-mentioned hole is formed by above-mentioned elastomeric material,
Characterized in that,
Above-mentioned lid is attached to the complete cycle scope for the plate thickness surface to form above-mentioned hole, and blocks the hole completely,
Complete cycle along above-mentioned plate thickness surface is formed with by the outer surface of above-mentioned lid and above-mentioned elastomeric material in addition to above-mentioned lid The outer side gap of part disjunction,
It is formed with the inner surface of above-mentioned lid along the scope more than half cycle of above-mentioned plate thickness surface with above-mentioned elastomeric material except upper State the private side gap of the part disjunction beyond lid.
2. bearing seal according to claim 1, it is characterised in that
It is attached to the inside lateral plates of above-mentioned annular plate section and with the continuous connecting portion of inner surface of above-mentioned lid by above-mentioned rubber Material is formed.
3. a kind of drawing fixture, it is characterised in that possess：
Pull axle, its have be inserted into hook portion in the above-mentioned hole of the bearing seal described in claims 1 or 2 and The external thread part that can be integratedly axially moveable with the hook portion；
Supporting mass, it has the opening for being formed with configuration corresponding with above-mentioned hole and being capable of insertion vertically for above-mentioned external thread part Supporting board and above-mentioned in radially and axially supporting by the contact of the lasso with being provided with above-mentioned bearing seal The cradle portion of supporting board；And
Nut, it from the side opposite with above-mentioned lasso can be screwed together in above-mentioned external thread part relative to above-mentioned supporting board.
CN201621079251.4U 2015-09-25 2016-09-23 Bearing seal and drawing fixture Withdrawn - After Issue CN206617446U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-187944 2015-09-25
JP2015187944A JP6537420B2 (en) 2015-09-25 2015-09-25 Bearing seal and drawing jig

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CN106870567A (en) * 2015-09-25 2017-06-20 Ntn株式会社 Bearing seal and drawing fixture

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JP2019038052A (en) * 2017-08-23 2019-03-14 旭イノベックス株式会社 Oil seal removal jig

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JPS58148359U (en) * 1982-03-31 1983-10-05 スズキ株式会社 Oil seal extraction device for cases such as gear shafts, etc.
JPH09317897A (en) 1996-05-28 1997-12-12 Fanuc Ltd Oil seal
JP2002266881A (en) * 2001-03-08 2002-09-18 Ntn Corp Rolling bearing
JP2008249034A (en) * 2007-03-30 2008-10-16 Ntn Corp Bearing seal and rolling bearing
JP2008281025A (en) 2007-05-08 2008-11-20 Ntn Corp Seal for bearing
JP2009103172A (en) * 2007-10-22 2009-05-14 Ntn Corp Roller bearing sealing device
DE102013000141B3 (en) * 2013-01-04 2014-05-15 Enno Luiken Four-lip snap-in seal for sealing slewing bearing, sets radial distance between sealing lips to be less than or equal to radial gap width between two sealing contact metal plates
CN204419867U (en) * 2015-01-10 2015-06-24 杭州亚恒汽车零部件有限公司 Bearing
JP6537420B2 (en) * 2015-09-25 2019-07-03 Ntn株式会社 Bearing seal and drawing jig

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106870567A (en) * 2015-09-25 2017-06-20 Ntn株式会社 Bearing seal and drawing fixture
CN106870567B (en) * 2015-09-25 2020-01-24 Ntn株式会社 Bearing seal and drawing jig

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CN106870567A (en) 2017-06-20
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CN106870567B (en) 2020-01-24
JP2017062001A (en) 2017-03-30

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