CN104747598A - Bearing, locking ring and set combined body of both - Google Patents
Bearing, locking ring and set combined body of both Download PDFInfo
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- CN104747598A CN104747598A CN201310751515.0A CN201310751515A CN104747598A CN 104747598 A CN104747598 A CN 104747598A CN 201310751515 A CN201310751515 A CN 201310751515A CN 104747598 A CN104747598 A CN 104747598A
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- bearing
- inner ring
- ring
- locking ring
- rotating shaft
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- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 4
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- 238000002474 experimental method Methods 0.000 description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
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- 239000010962 carbon steel Substances 0.000 description 1
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- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
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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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/063—Fixing them on the shaft
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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
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
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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
- F16C19/16—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 a single row of balls
- F16C19/163—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 a single row of balls with angular contact
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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
- F16C19/22—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
- F16C19/36—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 a single row of rollers
- F16C19/364—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 a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention provides a bearing locking ring (20). The bearing locking ring (20) is used for providing axial positioning and supporting for a conventional rolling bearing (10). The bearing is a bearing, the bearing structurally comprises an inner ring (1), an outer ring (2) and multiple rolling bodies arranged between the inner ring and the outer ring, the inner ring (1), the outer ring (2) and the rolling bodies are distributed along the radial direction, and the locking ring (20) is an annular sealing component; the locking ring is arranged on a rotating shaft with uniform diameter in series in a sleeving manner together with the inner ring (1) of the bearing (10), the locking ring (20) props against at least one end of the inner ring (1). the locking ring (20) can be hooped at the rotating shaft (5) with interference fit compactness degree higher than the inner ring (1) and the rotating shaft (5) by virtue of only depending on the mechanical property of raw materials and combining certain degree of flexible deformation. On the basis of same working principle, the invention also provides a conventional-type rolling bearing (10') with an extended inner ring (1).
Description
Technical field
The present invention relates to a kind of bearing locking ring (locking collar), the external member assemblying body be made up of rolling bearing and the described locking ring of general type and integrated described locking ring in the novel bearing of self.
Background technique
The rolling bearing of general type has radially distribute successively inner ring, outer ring and multiple rolling elements of being arranged between inner ring and outer ring in design.The bearing of these general types needs axially locating in design, in order to prevent shake or other types external force caused by axially displaced.Wherein, the bearing of some type, such as angular contact ball bearing (angular contact ball bearings), tapered roller bearing (tapered roller bearings), deep groove ball bearing (deep groove ball bearings) etc., even need the axial load bearing suitable intensity.For achieving the above object, the bearing of these general types must be fixed in the bearing rotating shaft through its inner ring in a reliable fashion.In practice, people realize above-mentioned purpose mainly with locking nut (lock nut).In typical case, locking nut is screwed in the mode of spiral adaptation and attacks in threaded bearing rotating shaft, is resisted against guiding rib (guide flange) side, place of bearing inner race from side, thus provides axially locating and support for bearing.This locking mode needs tap out in rotating shaft in advance, not only increases operation and cost, and under the effect of vibrations and external force, locking nut easily loosens.For preventing loosening, also needing additionally to arrange anti-loose component, such as lock washer (locking washer) or lock bolt (locking bolt) etc., finally could realize reliable fixing object.
For effectively reducing costs, simplified structure and technique, Chinese utility model patent CN202160405U discloses a kind of " deep groove ball bearing with lengthened inner ring " that realize axially locating by improving inner ring frictional force.The inner ring of this deep groove ball bearing has the lengthening part extended vertically, by improving the area of contact between bearing inner race and rotating shaft, increases the frictional force between bearing inner race and rotating shaft.But, although this design structure is simple, easy to assembly, cost is also cheap, but only according to the frictional force that can provide near the conventional interference fit lengthened between inner ring and rotating shaft, be difficult to the reliability guaranteeing axially locating, more fundamentally can not improve the axial load bearing capacity of inner ring, thus its application area is quite limited.
Summary of the invention
The present invention aim to provide a kind of structure simple, convenient, can to provide reliable location and axially support bearing locking ring is installed.For achieving the above object, basic conception of the present invention adopts a kind of locking ring with annular closing structure, this locking ring relies on the mechanical property of own material, and in conjunction with the telescopic shape change of self certain amplitude, just can be greater than the mechanical strength hoop of interference fit tightness degree between inner ring and rotating shaft in described rotating shaft.Based on above design, locking ring both as the complete sale of bearing of independent component and general type and use, also can become one as inner ring lengthening part and bearing inner race.
On the one hand, the invention provides a kind of bearing locking ring, for providing axially locating and support for the rolling bearing of general type.The rolling bearing of described general type, structurally comprise radially distribute successively inner ring, outer ring and multiple rolling elements of being arranged between inner ring and outer ring.Described locking ring is the enclosed member of annular, is sleeved on the homogeneous rotating shaft of diameter for connecting with the inner ring of bearing.When being arranged in described rotating shaft, described locking ring leans with at least one end of described inner ring vertically.Only rely on telescopic shape change and the mechanical property of own material, described locking ring just can be fastened in described rotating shaft with the mechanical strength being greater than interference fit tightness degree between described inner ring and rotating shaft.This locking ring, not only structure is simple, and it is convenient to install, with low cost, and can for bearing provides reliable axially locating and support in sizable load range.
On the other hand, the present invention also provides a kind of bearing external member assemblying body, and described external member assemblying body comprises the rolling bearing of general type and above-mentioned locking ring matching used with the rolling bearing of this general type.Not only user friendly purchase and the use of this external member assemblying body, but also be conducive to standardized production and the provision in set of product.
Again on the one hand, the present invention further provides a kind of bearing, described bearing have radially distribute successively inner ring, outer ring and multiple rolling elements of being arranged between inner ring and outer ring.Described inner ring corresponds to outside the standard area of outer ring at it, also has the axial lengthening part that one extends.Described lengthening part is formed in the side, stressed rib place for bearing axial load of described inner ring, has the closing structure of annular, for providing axially locating and support for bearing.When inner ring is sleeved in the homogeneous rotating shaft of diameter, described lengthening part only relies on telescopic shape change and the mechanical property of himself material, just can be greater than the mechanical strength lock ring of the interference fit tightness degree between described standard area and rotating shaft in described rotating shaft.Adopt this novel bearing with lengthening inner ring, the quantity of accessory can not only be reduced, simplify and produce, reduce costs, and effectively can improve installation efficiency and property easy to use.
Detailed description below in conjunction with accompanying drawing various embodiment of the present invention and beneficial effect.
Accompanying drawing explanation
Fig. 1 a is the schematic partial cross-sectional view under locking ring of the present invention and angular contact ball bearing support the use situation;
Fig. 1 b schematic partial cross-sectional view that to be locking ring of the present invention linked together in situation by bindiny mechanism and angular contact ball bearing, the region A in figure is partial cross section's enlarged view of described bindiny mechanism;
Fig. 1 c schematic partial cross-sectional view that to be locking ring of the present invention form as one in situation as the inner ring of inner ring lengthening part and angular contact ball bearing;
Fig. 1 d is the schematic partial cross-sectional view of the angular contact ball bearing of the inner ring lengthening part with improvement;
Fig. 2 a schematic partial cross-sectional view that to be locking ring of the present invention linked together in situation by bindiny mechanism and tapered roller bearing, the region A in figure is partial cross section's enlarged view of described bindiny mechanism;
Fig. 2 b is the schematic partial cross-sectional view of the tapered roller bearing of the inner ring lengthening part with improvement;
Fig. 3 a schematic partial cross-sectional view that to be locking ring of the present invention linked together in situation by bindiny mechanism and deep groove ball bearing, the region A in figure is partial cross section's enlarged view of described bindiny mechanism; With
Fig. 3 b is the schematic partial cross-sectional view of the deep groove ball bearing of the inner ring lengthening part with improvement.
Embodiment
First, for angular contact ball bearing, illustrate locking ring of the present invention be how with the rolling bearing of general type with the use of.Fig. 1 a is the schematic partial cross-sectional view under locking ring of the present invention and angular contact ball bearing support the use situation.This sectional view is the sectional view drawn by the imaginary plane cutting bearing body 10 and locking ring 20 that comprise bearing axis 8.Left-half display in Fig. 1 a be a common angular contact ball bearing 10, the multiple rolling elements 3 comprising inner ring 1, outer ring 2 and be arranged between inner ring 1 and outer ring 2.In the ideal case, angular contact ball bearing 10 also should comprise the retainer 4 for preventing rolling element 3 from touching each other.In a state of use, inner ring 1 is nested in rotating shaft 5 with the interference fit of appropriateness.As shown in the direction of arrow in figure, act on the transmission of the axial load F on outer ring 2 through rolling element 3, finally act on the stressed rib 11 of inner ring 1.Described stressed rib (also known as " guiding rib "), with regard to angular contact ball bearing, is arranged on the side of inner ring 1, all has certain thickness vertically with radial direction, be enough to the axial load bearing suitable intensity.
Right half part display in Fig. 1 a be the roughly rectangular locking ring 20 in a cross section.Effect and traditional locking nut of locking ring 20 are similar, are shifted vertically under the effect of axial load F or other external force for preventing bearing 10.Difference is, locking ring 20 is both not adaptive by spiral, also not by arranging coupling groove in rotating shaft 5, but is fastened in rotating shaft 5 with the hoop mode of rotating shaft 5 interference fit by being greater than inner ring 1 in tight intensity.
In the method for traditional rigid bearing, people always tend to find outside hoop type component (such as: various forms of locking nut or locking ring) extra fastening or prevent the technological means that gets loose, but exactly ignore the elastic strain and mechanical properties of materials that utilize hoop type component self, just fully can realize bearing inner race and to be reliably fixed in rotating shaft thus in rotating shaft, to obtain the realistic possibility effectively supported.Instant invention overcomes ubiquitous technology prejudice in traditional bearing means of fixation, namely think that locking ring reliably must could be fixed on the traditional idea in rotating shaft by means of the technological means such as screw thread or groove.Experiment shows, reply (contraction) effect had with annular material natural resiliency, be aided with the elastic strain of certain degree, just can make annular material forcefully lock ring in bearing rotating shaft, be enough to bear axial load in sizable amplitude range, thus locate reliably for bearing inner race provides and support.
Still for Fig. 1 a, locking ring 20 is a kind of closed annular construction member, can connect be sleeved in the homogeneous rotating shaft of diameter 5 with bearing 10.Its installation process is carried out under the state of the pre-thermal expansion of bearing inner race 1 and locking ring 20.After to be cooled, both just can rely on the shrinkage character of own material, and lock ring is in rotating shaft 5.This mounting type is well known in field of bearings, thus in repeating no more herein.To be installed complete after, locking ring 20 is resisted against the side, stressed rib 11 place for bearing axial load F of inner ring 1 vertically from side.For the rolling bearing of other general types without the need to bearing significantly axial load, locking ring 20 need, vertically against any side or the both sides of inner ring 1, can realize the object of reliable location.For the object realizing reliable location and firmly support simultaneously, the mechanical strength of locking ring 20 lock ring rotating shaft 5 must be greater than the hoop strength that inner ring 1 has with the normal interference fit of rotating shaft 5.This larger mechanical strength, the shrinkage character that the telescopic shape change that can come from locking ring 20 is brought, such as, can realize by adopting the interference fit larger than inner ring 1 and rotating shaft 5 interference amplitude; Also can come from locking ring 20 and be different from mechanical characteristic in the material of inner ring 1, such as, can by adopting the locking ring material more tough than inner ring 1 to realize when identical interference amplitude.Certainly, select as the third, also can adopt the mode that above two schemes combines.
For structural deformation, for realizing, higher than the lock ring intensity of inner ring interference fit, locking ring 20 can being made in design to have the internal diameter being less than inner ring 1, thus make locking ring 20 can with than inner ring 1 more closely lock ring degree be fixed in rotating shaft 5.With regard to metallic material, for Bearing Steel, locking ring 20, even reduce than inner ring 1 on internal diameter and only have some tens of pm, also can produce quite significant lock ring effect.Certainly, the structural deformation that locking ring 20 and rotating shaft 5 interference fit cause is necessary to control within the safe range of stretch of its material.
On the basis of structural deformation, can also mechanical property be adopted further to be different from the other materials of inner ring 1, such as telescopic resilience be better than the metallic material of inner ring 1.For the consideration of cost, locking ring 20 can adopt with inner ring 1 homogeneity but without the bearing steel material of finished heat treatment.Described finished heat treatment such as, can be that quenching (quenching) adds the heat treatment process such as tempering (tempering), carburizing, nitriding.As everyone knows, the Bearing Steel without finished heat treatment has better plasticity and toughness (plastic toughness) compared to the Bearing Steel that have passed through finished heat treatment.This is not only conducive to cutting, and is conducive to the lock ring effect reaching well by structural deformation capacitation.
Alternatively, locking ring 20 also can adopt modulation steel (thermally refined steel) material.So-called modulation steel refer in a typical case carbon content 0.3 ~ 0.6% the sorbite material that obtains after quenching and increasing temperature tempering heat treatment process of middle-carbon steel.This material has very high comprehensive mechanical property, while maintenance high strength, also has good plasticity and toughness.The also banding that can effectively stretch is appreciated that any other has the metallic material of high strength and/or good plasticity and toughness, as long as, in rotating shaft, can be adopted.
For improving the axial load bearing capacity of locking ring 20 further, can within it surface 22 on larger roughness is set, especially be greater than the roughness of bearing inner race internal surface 14, effectively to improve the friction factor between locking ring 20 and rotating shaft 5, thus improve fastening effect.
Separately be necessary to point out, in the embodiment shown in Fig. 1 a, the cross section of locking ring 20 is roughly rectangle.But, those skilled in the art can both understand, any other geometrical shape, such as right-angled trapezium, right-angled triangle, there is the fan-shaped etc. of 90 degree of central angles, as long as have adjacent two right angle sides perpendicular to one another, the wherein internal surface 22 of a corresponding locking ring 20 of right angle side, thus can reliably hoop in rotating shaft 5, the abutment facing 23 of the corresponding locking ring 20 of an other right angle side, thus fully can be resisted against the side, stressed rib 11 place of bearing inner race, then can both realize locking ring of the present invention against with support object.
Properity and the working principle of locking ring 20 of the present invention are below only described for the angular contact ball bearing 10 shown in Fig. 1 a.But those skilled in the art can both understand, the locking ring of same structure is also applicable to the rolling bearing of other general types completely, than the deep groove ball bearing 10 shown in tapered roller bearing 10 as shown in Figure 2 a and Fig. 3 a.For the rolling bearing of other general types without the need to bearing high strength axial load, as long as make the abutment facing 23 of locking ring 20 vertically against side or the both sides of inner ring 1 as required, the object of reliable location just can be realized.In the case of the latter, the working mechanism of locking ring 20 and the situation of principle and aforementioned angular contact ball bearing, tapered roller bearing and tapered roller bearing there is no essential distinction.
As can be seen here, as independent component, locking ring 20 can form external member assemblying body with the rolling bearing of various general type, thus can complete sale and use.So not only user friendly purchase and use, but also the provision in set being conducive to standardization and the product produced.Such as, locking ring 20 can form external member assemblying body with the tapered roller bearing 10 shown in the angular contact ball bearing 10 shown in Fig. 1 a or Fig. 2 a.To be installed complete after, locking ring 20 can be resisted against stressed rib 11 side of inner ring 1 vertically.Similar, locking ring 20 also can form external member assemblying body with the deep groove ball bearing 10 shown in Fig. 3 a.Difference is, the inner ring 1 of deep groove ball bearing 10 has symmetrical left and right rib 13 and 11.According to the difference of axial load action direction, the left and right rib 13 or 11 of inner ring 1 all likely becomes actual stressed rib.In this case, can as required, by locking ring 20 as installed in stressed rib 11 or 13 side, place of bearing axial load.When deep groove ball bearing 10 bears two-way axial load, two locking rings 20 can be adopted vertically simultaneously from both sides against the technological scheme of stressed rib 11 and 13.To be installed complete after, two locking rings respectively from axial both sides against the left and right rib 13 and 11 of inner ring 1, thus make deep groove ball bearing 10 have the bearing capacity of bilateral axial load.
For realizing the object of combined set, preventing external member from losing, bindiny mechanism can also be set further, locking ring 20 and bearing 10 can be linked together in detachable mode.In use, as long as manage locking ring 20 and bearing 10 to separate, be sleeved on one by one in bearing rotating shaft 5, and make both abut against each other.As a concrete example of bindiny mechanism, the invention provides a kind of buckle mechanism being convenient to split.As shown in Figure 1 b, for angular contact ball bearing 10, described buckle mechanism structurally comprises the annular flange 21 be formed on locking ring 20 and the adaptive groove 12a be formed on the stressed rib 11 of inner ring 1.When in Figure 1b, adaptive groove 12a is formed on the shoulder 12 of stressed rib 11, annular flange 21 is formed with the hook-shaped teat 21a of radial inwardly projecting at its end, and this hook-shaped teat 21 can rely on the elasticity recovery inlay card of annular flange 21 in adaptive groove 12a.In the matching process, as long as impose enough end thrusts, just bearing 10 and locking ring 20 " click clatter " sound lock can be buckled together.Before the mounting, as long as impose contrary pulling force vertically, just bearing 10 and locking ring 20 can be separated.
Easy understand, adopting the buckle mechanism of said structure, being also applicable to the situation of the rolling bearing of the tapered roller bearing 10 shown in Fig. 2 a and 3a and deep groove ball bearing 10 and other general types completely, thus in repeating no more herein.Be appreciated that the bindiny mechanism of any other form, be connected with the detachable of bearing 10 as long as locking ring 20 functionally can be realized, can be adopted, and be not necessarily limited to the above buckle mechanism described as a specific example.
In above-mentioned many mode of executions, locking ring 20 only to mate with bearing 10 as independent component and uses.But locking ring 20 also can form as one with bearing inner race 1, plays the effect of lock ring and location as its inner ring lengthening part equally.In this case, for the situation shown in Fig. 1 c, locking ring 20 and bearing 10 structurally " can merge " completely and be integrated, and form a kind of novel bearing 10 '.Multiple rolling elements 3 that this novel bearing has inner ring 1, outer ring 2 and is arranged between inner ring 1 and outer ring 2.Described inner ring 1 corresponds to outside the standard area 1 ' of outer ring 2 at it, also has the lengthening part 20 ' extended vertically.Described lengthening part 20 ' is formed as the closing structure of annular, when mounted, namely can be contained in the homogeneous rotating shaft of diameter 5 with inner ring 1 sleeve integrating.Be similar to the situation of aforementioned locking ring 20, after cooling, lengthening part 20 ' relies on the recovery characteristic of himself material, in conjunction with elasticity (contraction) deformation to a certain degree, just can be fastened in rotating shaft 5 with the hoop strength being greater than the interference fit between described standard area 1 ' and rotating shaft 5.
Similar with aforementioned circumstances, for improving the axially support ability of inner ring 1 further, also can consider in the larger roughness of the upper setting of the internal surface 22 ' of its lengthening part 20 ', especially the roughness of the internal surface 14 ' of inner ring standard area 1 ' is greater than, thus the friction factor effectively improved between lengthening part 20 ' and rotating shaft 5 and fastening effect.
Difference is, compared with independently arranging the situation of locking ring 20, when locking ring 20 combines together as lengthening part 20 ' and inner ring 1, vibrations and axial load almost nondestructively can conduct to lengthening part 20 '.This all causes adverse effect to the reliability of ability and axially locating that lengthening part 20 ' bears axial load.For this reason, the present invention sets up the damping trough 6 of annular further on inner ring standard area 1 ' with the internal surface of lengthening part 20 ' intersection.As shown in Figure 1 d, the cross section of damping trough 6 can be the geometrical shape of any routine, such as semicircle or half elliptic.In addition, damping trough 6 should have certain degree of depth diametrically.Analog computation and experiment show, under the effect of axial load F, damping trough 6 the axial deformation amplitude that can reduce lengthening part 20 ' internal material is on the whole set.This shows from a side, arranging of damping trough 6 can make axial load F before arrival lengthening part 20 ', wherein have at least sub load to be imported in advance in rotating shaft 5 by inner ring standard area 1 ' the axle surface of contact near damping trough 6, thus correspondingly reduce the axial load that lengthening part 20 ' bears.As can be seen here, being provided with of damping trough 6 helps to unload to a certain extent the axial load that lengthening part 20 ' bears, thus improves axially support ability and the reliability of positioning of lengthening part 20 '.Experiment also shows, along with the radial depth of damping trough 6 increases within the specific limits further, the material shaft synform time-varying amplitude in lengthening part 20 ' is tending towards reducing on the whole.This illustrates, the radial depth increase within the specific limits of damping trough 6, contributes to relaxing further the axial load that lengthening part 20 ' bears.
Moreover, as shown in Figure 1 d, consider the convenience that inner ring 1 is dismantled, the present invention can also set up dismounting draw-in groove 7 on the radially-outer surface of lengthening part 20 '.In unloading process, the claw of dismounting device can be inserted in draw-in groove 7, is conveniently hauled out by inner ring 1 from rotating shaft 5.
Below only for the angular contact ball bearing 10 ' shown in Fig. 1 c and 1d, describing locking ring 20 can combine together with the form of lengthening part 20 ' and bearing inner race 1 ', thus forms the angular contact ball bearing 10 ' having and lengthen inner ring.Those skilled in the art is appreciated that similar technological scheme also can be applied on the rolling bearing of other general types completely.Such as, as shown by figures 2 b and 3b, lengthening part 20 ' can be formed in stressed rib 11 or 13 side, place of the inner ring standard area 1 ' of tapered roller bearing 10 ' or deep groove ball bearing 10 ', combine together with standard area 1 ', form the extended type inner ring 1 of bearing 10 ', thus obtain tapered roller bearing and the deep groove ball bearing with extra lock ring ability.The structure of the lengthening part of the rolling bearing of these general types, the similar with the angular contact ball bearing 10 ' shown in Fig. 1 c and 1d, also has identical function and effect, thus in no longer repeating herein.
Although this specification has only been described in detail for the embodiment shown in figure; but the technician in described field can understand completely; other any type of change and improvement, as long as meet the restriction of following claims, all belong to protection scope of the present invention.
Claims (21)
1. a bearing locking ring (20), axially locating and support is provided for the rolling bearing (10) for general type, described bearing (10) structurally comprises the inner ring (1) radially distributed, outer ring (2) and the multiple rolling elements (3) be arranged between inner ring and outer ring, described locking ring (20) is the enclosed member of annular, the homogeneous rotating shaft of diameter (5) is sleeved on for connecting with the inner ring (1) of bearing (10), and can lean with at least one end of described inner ring (1) vertically, it is characterized in that: described locking ring (20) only relies on the mechanical property of own material, and the telescopic shape change combined to a certain degree, just can be greater than the mechanical strength hoop of described inner ring (1) and described rotating shaft (5) interference fit tightness degree in described rotating shaft (5).
2. bearing locking ring (20) as described in the appended claim 1, is characterized in that: be installed in described rotating shaft (5) upper before, described locking ring (20) has the internal diameter reduced than described inner ring (1).
3. bearing locking ring (20) as stated in claim 2, is characterized in that: the roughness of described locking ring (20) internal surface (22) is greater than the roughness of bearing inner race (1) internal surface (14).
4. the bearing locking ring (20) according to any one of claims 1 to 3, is characterized in that: what described locking ring (20) adopted is the material that mechanical property is different from described inner ring (1).
5. as described in claim 4 bearing locking ring (20), is characterized in that: described locking ring (20) is that the metallic material being better than described inner ring (1) by elastic properties of materials is made.
6. bearing locking ring (20) as described in claim 5, is characterized in that: described locking ring (20) is made up of the Bearing Steel with inner ring (1) homogenous materials but without finished heat treatment.
7. bearing locking ring (20) as described in any of claims 4, is characterized in that: described locking ring (20) is made up of the metallic material having high strength and superior elasticity concurrently.
8. bearing locking ring (20) as described in claim 7, is characterized in that: described locking ring (20) is made up of modulation Steel material.
9. the bearing locking ring (20) according to any one of claims 1 to 3, it is characterized in that: described locking ring (20) has orthogonal internal surface (22) and abutment facing (23), after being arranged on described rotating shaft (5) above, described internal surface (22) hoop is in described rotating shaft (5), and described abutment facing (23) leans with at least side of described inner ring (1) vertically.
10. bearing locking ring (20) as described in claim 9, is characterized in that: described locking ring (20) has substantially rectangular cross section.
11. bearing locking rings (20) as described in claim 9, it is characterized in that: described bearing (10) is angular contact ball bearing, tapered roller bearing or deep groove ball bearing, after being arranged on described rotating shaft (5) above, described abutment facing (23) is vertically against stressed rib (11, the 13) side, place of described inner ring (1).
12. 1 kinds of bearing external member assemblying bodys (10,20), comprise bearing according to any one of claim 1 ~ 11 (10) and with the locking ring (20) described in the matching used same claim of this bearing (10).
13. bearing external member assemblying bodys (10,20) as described in claim 12, is characterized in that: described locking ring (20) can pass through bindiny mechanism (12,12a, 21,21a) be connected with described inner ring (1) removably.
14. bearing external member assemblying bodys (10 as claimed in claim 13, 20), it is characterized in that: described bindiny mechanism is a kind of buckle mechanism (12, 12a, 21, 21a), described buckle mechanism (12, 12a, 21, 21a) comprise the annular flange (21) be formed on locking ring (20) and the adaptive groove (12a) be formed on described inner ring (1) side shoulder (12), described annular flange (21) is formed with radially inwardly outstanding hook-shaped teat (21a) at its end, described hook-shaped teat (21a) can under the effect of axial force, elastic strain by means of annular flange (21) fits in described adaptive groove (21a), or deviate from from described adaptive groove (21a).
15. bearing external member assemblying bodys (10,20) as described in claim 14, it is characterized in that: described bearing (10) is angular contact ball bearing, tapered roller bearing or deep groove ball bearing, after being arranged on described rotating shaft (5) above, described abutment facing (23) is vertically against stressed rib (11, the 13) side, place of described inner ring (1), and described adaptive groove (21a) is formed in described inner ring (1) and is positioned on the shoulder (12) of stressed rib (11,13) side, place.
16. 1 kinds of bearings (10 '), there is the inner ring (1) radially distributed, outer ring (2) and the multiple rolling elements (3) be arranged between inner ring and outer ring, described inner ring (1) corresponds to the axial lengthening part (20 ') also outside the standard area (1 ') of outer ring (2) with one extension at it, described lengthening part (20 ') is formed as the closing structure of annular, for bearing (10 ') provides axially locating and support, it is characterized in that: when described inner ring (1) integral assembling is when the rotating shaft (5) that diameter is homogeneous is upper, described lengthening part (20 ') only relies on the mechanical property of himself material, in conjunction with telescopic shape change to a certain degree, just can be greater than the mechanical strength lock ring of the interference fit tightness degree between described inner ring (1) and described rotating shaft (5) in described rotating shaft (5).
17. bearings (10 ') as claimed in claim 16, is characterized in that: before being installed in described rotating shaft (5) above, described lengthening part (20 ') has the internal diameter reduced than inner ring (1) standard area (1 ').
18. bearings (10 ') as claimed in claim 17, is characterized in that: the internal surface (22 ') of described lengthening part (20 ') is formed as having the roughness larger than described standard area (1 ') internal surface (14 ').
19. bearings (10 ') according to any one of claim 16 ~ 18, it is characterized in that: described bearing (10 ') is angular contact ball bearing, tapered roller bearing or deep groove ball bearing, and described lengthening part (20 ') stretches out vertically from stressed rib (11, the 13) side, place of described inner ring (1).
20., as the bearing (10 ') in claim 16 ~ 18 as described in any one, is characterized in that: the internal surface of described inner ring (1) between its lengthening part (20 ') and standard area (1 ') is formed with damping trough (6).
21. bearings (10 ') as claimed in claim 20, is characterized in that: described lengthening part (20 ') is formed with the dismounting draw-in groove (7) for dismantling inner ring (1) on its radially-outer surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310751515.0A CN104747598A (en) | 2013-12-31 | 2013-12-31 | Bearing, locking ring and set combined body of both |
| PCT/CN2014/093971 WO2015101177A1 (en) | 2013-12-31 | 2014-12-16 | Bearing, locking collar and assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310751515.0A CN104747598A (en) | 2013-12-31 | 2013-12-31 | Bearing, locking ring and set combined body of both |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104747598A true CN104747598A (en) | 2015-07-01 |
Family
ID=53493185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310751515.0A Pending CN104747598A (en) | 2013-12-31 | 2013-12-31 | Bearing, locking ring and set combined body of both |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104747598A (en) |
| WO (1) | WO2015101177A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018017030A1 (en) | 2016-07-20 | 2018-01-25 | Ortadogu Rulman Sanayi Ve Ticaret Anonim Sirketi | Fixing of a ball bearing on a shaft with interposition of a conical sleeve |
| CN110178295A (en) * | 2017-01-11 | 2019-08-27 | Lg伊诺特有限公司 | Motor |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017138894A1 (en) * | 2016-02-10 | 2017-08-17 | Ortadogu Rulman Sanayi Ve Ticaret Anonim Sirketi | Method of assembling a wheel hub rolling bearing assembly by heat shrinking a retainer ring |
| DE102019106276A1 (en) * | 2019-03-12 | 2020-09-17 | Schaeffler Technologies AG & Co. KG | Rotor bearing of a wind turbine Technical area |
| DE102019118755A1 (en) * | 2019-07-11 | 2021-01-14 | Bayerische Motoren Werke Aktiengesellschaft | Gearbox with a roller bearing |
| CN112412986B (en) * | 2020-11-23 | 2022-05-03 | 吕梁学院 | Coal-winning machine walking wheel bearing of convenient maintenance |
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| CN201934523U (en) * | 2011-03-05 | 2011-08-17 | 中山市盈科轴承制造有限公司 | Double-row spherical roller bearing unit with concentric locking ring |
| CN203214673U (en) * | 2013-03-07 | 2013-09-25 | 宋锦荣 | Bearing assembly |
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| DE4225782A1 (en) * | 1991-08-09 | 1993-03-04 | Skf Ind Spa | Rolling bearing with shaft locking device - comprises inner ring extension with conical seat at end with locking ring and annular friction ring |
| CN2358266Y (en) * | 1998-07-29 | 2000-01-12 | 南通振达轴承有限公司 | Pulling automobile clutch release ball bearing |
| US20050053318A1 (en) * | 2003-09-10 | 2005-03-10 | Casey Marlon R. | Bearing assembly |
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| CN202165405U (en) * | 2011-06-21 | 2012-03-14 | 蚌埠飞宇轴承有限公司 | Deep groove ball bearing with lengthened inner ring |
| CN102678741A (en) * | 2012-05-17 | 2012-09-19 | 宁波万丰轴承有限公司 | Nonstandard thin-wall waterproof bearing |
| CN202937617U (en) * | 2012-11-26 | 2013-05-15 | 宁波三泰轴承有限公司 | Bearing device used in driving wheel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018017030A1 (en) | 2016-07-20 | 2018-01-25 | Ortadogu Rulman Sanayi Ve Ticaret Anonim Sirketi | Fixing of a ball bearing on a shaft with interposition of a conical sleeve |
| CN110178295A (en) * | 2017-01-11 | 2019-08-27 | Lg伊诺特有限公司 | Motor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015101177A1 (en) | 2015-07-09 |
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