CN109707741A - A kind of bearing arrangement of automatically lock positioning - Google Patents
A kind of bearing arrangement of automatically lock positioning Download PDFInfo
- Publication number
- CN109707741A CN109707741A CN201811563915.8A CN201811563915A CN109707741A CN 109707741 A CN109707741 A CN 109707741A CN 201811563915 A CN201811563915 A CN 201811563915A CN 109707741 A CN109707741 A CN 109707741A
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- CN
- China
- Prior art keywords
- bearing
- retaining ring
- sawtooth
- angle
- inner race
- Prior art date
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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
- 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
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
- F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
-
- 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
-
- 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
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
- F16C35/073—Fixing them on the shaft or housing with interposition of an element between shaft and inner race ring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/50—Positive connections
- F16C2226/62—Positive connections with pins, bolts or dowels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/50—Positive connections
- F16C2226/70—Positive connections with complementary interlocking parts
- F16C2226/74—Positive connections with complementary interlocking parts with snap-fit, e.g. by clips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/50—Positive connections
- F16C2226/70—Positive connections with complementary interlocking parts
- F16C2226/76—Positive connections with complementary interlocking parts with tongue and groove or key and slot
Abstract
The invention discloses a kind of bearing arrangements of automatically lock positioning, the bearing arrangement includes bearing and bearing block, bearing includes bearing outer ring, bearing inner race and rolling element, bearing outer ring and bearing inner race are coaxially disposed, rolling element is set between bearing outer ring and bearing inner race, bearing inner race inner surface is provided with retaining ring, and bearing outer ring outer surface is provided with limiting groove, and bearing block is provided with the retention bead being used cooperatively with limiting groove.The present invention carries out the axially position between bearing outer ring and bearing block by annular stop groove and annular stop protrusion, it is cooperated by the first sawtooth and the second sawtooth, positioning protrusion and locating aperture are to mutual cooperation, to prevent that relative rotation occurs between bearing outer ring and bearing block, it is cooperated by bearing inner race, retaining ring, annulus three, come so that retaining ring lock shaft, to guarantee the rotation that axis can be stable.
Description
Technical field
The present invention relates to component of machine field, the bearing arrangement of specifically a kind of automatically lock positioning.
Background technique
Bearing is to support mechanical rotary body, reduces the components of the coefficient of friction in its motion process.Bearing is in assembly
In the process, gap is often had between bearing and axis, bearing block, there are the rotation shakinesses that gap will lead to axis between bearing and axis
It is fixed, there are gap between bearing and bearing block, it may be such that and relative rotation and sliding occur between bearing and bearing block, cause
Antiwhip is poor.
Because applicant is dedicated to providing one kind and is able to carry out automatically lock axis, and bearing is able to carry out axially position
Bearing arrangement.
Summary of the invention
The purpose of the present invention is to provide a kind of bearing arrangements of automatically lock positioning, to solve in the prior art ask
Topic.
To achieve the above object, the invention provides the following technical scheme:
A kind of bearing arrangement of automatically lock positioning, which includes bearing and bearing block, and bearing includes bearing outer ring, axis
Inner ring and rolling element are held, bearing outer ring and bearing inner race are coaxially disposed, and rolling element is set between bearing outer ring and bearing inner race,
Bearing inner race inner surface is provided with retaining ring, and bearing outer ring outer surface is provided with limiting groove, bearing base inner surface be provided with
The retention bead that limiting groove is used cooperatively.
Through the above technical solutions, retaining ring makes bearing inner race axis clamping, prevent from occurring between bearing inner race and axis
Relative motion reduces the abrasion between bearing inner race and axis；Bearing outer ring outer surface is provided with limiting groove, bearing base inner surface
It is provided with retention bead, bearing outer ring outer surface is provided with retention bead, bearing base inner surface is provided with limiting groove,
Bearing block may not necessarily reserve thickness for limiting groove, and bearing block can be made to become slightly thinner, saved bearing block
Materials reduce costs, and retention bead and limiting groove are used cooperatively, and limit the axial displacement of bearing, prevent bearing outer ring from existing
It is shaken on the axis direction of bearing block, stability when improving bearing rotary in bearing block.
Preferably, bearing block is split type structure comprising first bearing seat and second bearing seat, first bearing
Engaging lug and link slot, the engaging lug of first bearing seat and the engaging lug of second bearing seat are provided in seat and second bearing seat
Structure is identical, and the link slot of first bearing seat and the connecting groove structure of second bearing seat are identical, is arranged on engaging lug and link slot
Have bolt hole, the engaging lug of first bearing seat and the link slot of second bearing seat are used cooperatively, the engaging lug of second bearing seat with
The link slot of first bearing seat is used cooperatively.
Through the above technical solutions, bearing block is split type structure, it is convenient for disassembling and maintaining bearing block, it is solid in connection
When determining first bearing seat and second bearing seat, bolt passes through the bolt hole of first bearing seat engaging lug and second bearing seat link slot
It is fixed, bolt passes through second bearing seat engaging lug and the bolt hole of first bearing seat link slot is fixed, and utilizes bolt
It directly is attached fixation, it is simple and convenient.
Preferably, for the setting of bearing inner race inner surface there are two retaining ring, two retaining rings are respectively arranged at bearing
The both ends of inner ring inner surface, the cross section of retaining ring are isosceles triangle, and retaining ring includes retaining ring tip and retaining ring inclined-plane,
Arc rubber is provided between retaining ring tip and bearing inner race inner surface, bearing inner race inner surface is additionally provided with annulus, annulus
It is provided with the annulus inclined-plane of retaining ring inclined-plane cooperation, annulus is threadedly coupled with bearing inner race inner surface.
Through the above technical solutions, two retaining rings are respectively arranged at the both ends of bearing inner race inner surface, so that in bearing
For circle when axis clamping, it is more firm to hold, and also avoids some place of build-up of pressure in axis of retaining ring, so that
The pressure for the retaining ring that axis is subject to is more uniform, and arc rubber is provided between retaining ring tip and bearing inner race inner surface can be with
Prevent the tip of retaining ring from rubbing with bearing inner race, it is therefore prevented that retaining ring and bearing inner race are worn, and extend retaining ring
With the service life of bearing inner race；Annulus is threadedly coupled with bearing inner race inner surface, and annulus and bearing inner race are interference fitted, and is passed through
Rotating ring, so that annulus retraction bearing inner race, because being interference fit, bearing inner race pair between annulus and bearing inner race
Annulus has extruding force, and annulus inclined-plane is used cooperatively with retaining ring inclined-plane, and annulus applies the extruding force being subject to by annulus inclined-plane
Give retaining ring inclined-plane；Retaining ring includes retaining ring inclined-plane, and the cross section of retaining ring is isosceles triangle, and retaining ring inclined-plane is located at lock
The two sides of tight ring, tilt angle, the size on inclined-plane on two sides retaining ring inclined-plane are all the same, so that two sides retaining ring inclined-plane is justified
The resultant force of the extruding force of ring is directed to direction of axis line, and this with joint efforts should be big as far as possible, could make retaining ring handle
Shaft locking.
Preferably, limiting groove is annular stop groove, and retention bead is that annular stop is raised, on limiting groove
It is provided with the first sawtooth, the angle between the two neighboring teeth of the first sawtooth is angle a, and the angle of angle a is 60-90 degree, in retention bead
It is provided with the second sawtooth matched with the first sawtooth.
Through the above technical solutions, the limiting groove for playing limitation bearing axial displacement and retention bead are respectively set
For annular stop groove and annular stop protrusion, can to wear in the limiting groove and retention bead of certain, i.e.,
Sawtooth on first sawtooth and the second sawtooth is worn, when can not play position-limiting action, limiting groove and limit elsewhere
Position protrusion can still play the role of limit；First sawtooth and the second sawtooth in addition to position-limiting action can be carried out in the axial direction,
It can also prevent the relative rotation of bearing block and bearing outer ring.Angle between the two neighboring teeth of first sawtooth is angle a, to bearing
Relative rotation selection does not occur between seat and bearing outer ring, angle, that is, angle a between the two neighboring teeth of the first sawtooth should be as far as possible
It is small, so selecting angle a for acute angle, but if the angle of angle a is too small, sawtooth can be made excessively sharp, accelerate the abrasion of sawtooth,
Reduce the service life of bearing block and bearing outer ring significantly, therefore selects the angular range of angle a for 60-70 degree.
Preferably, third sawtooth is provided on link slot, the angle between the two neighboring teeth of third sawtooth is angle b,
The angle of angle b is 120-130 degree, and the 4th sawtooth with third jigsaw fit is provided on engaging lug.
Through the above technical solutions, first bearing seat and second bearing seat may be used also in addition to that can be positioned by bolt
It is positioned with being matched by third sawtooth on link slot and the 4th sawtooth, third sawtooth and the 4th sawtooth phase interworking
Close, reduce the pressure that bolt and bolt hole are subject in fixed bearing block to a certain extent, reduce bolt and bolt hole it
Between abrasion, to extend the service life of bolt and bolt hole；And first angle, that is, angle b between the two neighboring teeth of sawtooth
Angle be not suitable for it is too small, be on the one hand because between first bearing seat and second bearing seat mainly by bolt and bolt hole come
It is connected and fixed, if another party's face angle b is too small, meeting can be made so that sawtooth is excessively sharp, accelerate the abrasion of sawtooth, shorten bearing block
Service life, the angle of angle b are also not suitable for excessive, if the angle of angle b is excessive, can not play and reduce bolt and bolt hole solid
Determine the pressure being subject to when bearing block, therefore select the angular range of angle b for 120-130 degree, can either play and reduce pressure and determine
The effect of position, does not easily lead to abrasion yet.
Preferably, it is arranged jagged in retaining ring, indentation, there is provided with rubber band, and the width of rubber band is equal to lock
The width of tight ring.
Through the above technical solutions, it is jagged because of being arranged in retaining ring, when retaining ring is directed toward axle center by annulus
When the resultant force of line, retaining ring reduces, so that bearing inner race is axis clamping；Indentation, there is provided with rubber band, under original state,
Rubber band is under tensional state, because rubber band is flexible, the rubber band in tensional state will restore elasticity, so
Rubber band also has retaining ring so that the elastic force that retaining ring is shunk, this elastic force further reduce retaining ring, further makes
Bearing is obtained axis clamping.
Preferably, one end of bearing outer ring is provided with positioning protrusion, sets in first bearing seat and second bearing seat
It is equipped with the locating aperture that positioning protrusion is used cooperatively.
Through the above technical solutions, positioning protrusion and locating aperture are used in combination, on the one hand make bearing outer ring and axis
It holds seat and relative rotation does not occur, prevent from misplacing between bearing outer ring and bearing block, reduce between bearing outer ring and bearing block
Sliding friction, to reduce the abrasion between bearing outer ring and bearing block, on the other hand, after first time assembles use, the
The sawtooth in sawtooth and the second sawtooth in one sawtooth have passed through running-in period, to reach mutual coordination, close-fitting effect
The cooperation of fruit, bearing block and bearing outer ring is more stable, re-starts assembling after bearing outer ring and bearing block disassembly, if
It is not provided with positioning protrusion and locating aperture, may be such that the sawtooth in the sawtooth in the first sawtooth and the second sawtooth needs weight
New experience running-in period, or possible first sawtooth can not be merged with the sawtooth in the second sawtooth, influence bearing block and bearing
The fiting effect of outer ring, to influence the effect of the limit of the first sawtooth and the second sawtooth.
Preferably, the locating aperture shape of the locating aperture of first bearing seat and second bearing seat is not identical, fixed
The shape of position opening is rectangle, trapezoidal or circular arc type.
Through the above technical solutions, because first bearing seat and second bearing seat are much like in structure, by first
The shape of the locating aperture of bearing block and the locating aperture of second bearing seat are shaped to different shapes, so that bearing outer ring
When with re-starting assembling after bearing block disassembly, the sawtooth in corresponding second sawtooth of sawtooth in the first sawtooth is to fill for the first time
With sawtooth mutually matched when using, it ensure that bearing outer ring and bearing block carry out good cooperation.
Preferably, the isosceles triangle of retaining ring cross section is obtuse triangle, and the angle at obtuse angle is 150-160
Degree.
Through the above technical solutions, retaining ring is the inner surface for being set to bearing inner race, the use of retaining ring should not shadow
The use of bearing inner race is rung, so the thickness of retaining ring will be designed than relatively thin, in the case where same thickness, retaining ring tip
Angle it is bigger, the contact area of retaining ring and axis is also bigger, and retaining ring is more uniform to the pressure of axis, retaining ring lock shaft
Effect is also better, therefore it is obtuse triangle that we, which choose isosceles triangle, but the obtuse angle of the obtuse triangle can not
Too big, if obtuse angle angle is too big, retaining ring can be become smaller by the resultant force that axial line is directed toward on both sides, and retaining ring locks axis
Tight power will become smaller, and retaining ring can weaken the effect of shaft locking, so selecting the angle at obtuse angle for 150-160 degree.
Compared with prior art, the beneficial effects of the present invention are: the present invention is convex by annular stop groove and annular stop
Get up to carry out the axially position between bearing outer ring and bearing block, be cooperated by the first sawtooth and the second sawtooth, convex
It rises and locating aperture is to mutual cooperation, to prevent that relative rotation occurs between bearing outer ring and bearing block, pass through bearing inner race, lock
Tight ring, annulus three cooperate, and come so that retaining ring lock shaft, to guarantee the rotation that axis can be stable.The apparatus structure
Simply, it has wide range of applications.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the bearing arrangement of automatically lock positioning of the present invention；
Fig. 2 is a kind of cross-sectional view of the bearing arrangement of automatically lock positioning of the present invention；
Fig. 3 is a kind of structural schematic diagram of the bearing of the bearing arrangement of automatically lock positioning of the present invention；
Fig. 4 is a kind of structural representation of the first bearing seat or second bearing seat of the bearing arrangement of automatically lock positioning of the present invention
Figure；
Fig. 5 is the amplification stereoscopic schematic diagram at a kind of A of the bearing arrangement of automatically lock positioning of the present invention；
Fig. 6 is the enlarged diagram at a kind of B of the bearing arrangement of automatically lock positioning of the present invention.
In figure: 1- bearing, 2- first bearing seat, 3- second bearing seat, 4- bearing outer ring, 5- rolling element, 6- bearing inner race,
7- annulus, 8- retaining ring, 9- rubber band, 10- arc rubber, 11- locating aperture, 12- positioning protrusion, 13- retention bead, 13a-
Second sawtooth, 14- engaging lug, the 4th sawtooth of 14a-, 15- link slot, 15a- third sawtooth, 16- limiting groove, 16a- first are sawed
The angle between angle, the two neighboring teeth of angle b- third sawtooth between tooth, the two neighboring teeth of the first sawtooth of angle a-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of bearing arrangement of automatically lock positioning, as shown in Figure 1, the bearing arrangement includes bearing 1 and bearing block, bearing
1 includes bearing outer ring 4, bearing inner race 6 and rolling element 5, and bearing outer ring 4 and bearing inner race 6 are coaxially disposed, and rolling element 5 is set to
Between bearing outer ring 4 and bearing inner race 6,6 inner surface of bearing inner race is provided with retaining ring 8, and the setting of 4 outer surface of bearing outer ring is limited
Position groove 16, bearing base inner surface are provided with the retention bead 13 being used cooperatively with limiting groove 16.
Through the above technical solutions, retaining ring 8 makes bearing inner race 6 axis clamping, prevent from sending out between bearing inner race 6 and axis
Raw relative motion, reduces the abrasion between bearing inner race 6 and axis, 4 outer surface of bearing outer ring is provided with limiting groove 16, bearing block
Inner surface is provided with retention bead 13, and 4 outer surface of bearing outer ring is provided with retention bead 13, the setting of bearing base inner surface
There is limiting groove 16, bearing block may not necessarily reserve thickness for limiting groove 16, bearing block can be made to become slightly thinner,
The materials for having saved bearing block, reduce costs.Retention bead 13 and limiting groove 16 are used cooperatively, and limit the axial position of bearing
It moves, prevents bearing outer ring 4 from shaking on the axis direction of bearing block, improve the stability that bearing 1 rotates in bearing block.
Bearing block is split type structure comprising first bearing seat 1 and second bearing seat 2, first bearing seat 1 and the second axis
It holds and is provided with engaging lug 14 and link slot 15 on seat 2, the engaging lug 14 of first bearing seat 1 and the engaging lug of second bearing seat 2
14 structures are identical, and the link slot 15 of first bearing seat 1 and 15 structure of link slot of second bearing seat 2 are identical, engaging lug 14 and company
Bolt hole is provided on access slot 15, the engaging lug 14 of first bearing seat 1 is used cooperatively with the link slot 15 of second bearing seat 2, the
The engaging lug 14 of two bearing bracket 2 is used cooperatively with the link slot 15 of first bearing seat 1.
Through the above technical solutions, bearing block is split type structure, it is convenient for disassembling and maintaining bearing block, connects fixed
When connecing first bearing seat 1 and second bearing seat 2, bolt is passed through to the engaging lug 14 of first bearing seat 1 and the company of second bearing seat 2
The bolt hole of access slot 15 is fixed, and bolt is passed through to the engaging lug 14 of second bearing seat 2 and the link slot 15 of first bearing seat 1
Bolt hole be fixed, be directly attached fixation using bolt, it is simple and convenient.
As shown in Fig. 2, the setting of 6 inner surface of bearing inner race is there are two retaining ring 8, two retaining rings 8 are respectively arranged at bearing
The both ends of 6 inner surface of inner ring, the cross section of retaining ring 8 are isosceles triangle, and retaining ring 8 includes that retaining ring tip and retaining ring are oblique
Face 8a is provided with arc rubber 10 between 6 inner surface of retaining ring tip and bearing inner race, and 6 inner surface of bearing inner race is additionally provided with
Annulus 7, annulus 7 are provided with the annulus inclined-plane of retaining ring inclined-plane 8a cooperation, and annulus 7 is threadedly coupled with 6 inner surface of bearing inner race.
Through the above technical solutions, two retaining rings 8 are respectively arranged at the both ends of 6 inner surface of bearing inner race, so that bearing
For inner ring 6 when clamp shaft, it is more firm to hold, and also avoids some place of build-up of pressure in axis of retaining ring 8, makes
The pressure for obtaining the retaining ring 8 of axis being subject to is more uniform, is provided with arc rubber between 6 inner surface of retaining ring tip and bearing inner race
Glue 10 can prevent retaining ring tip from rubbing with bearing inner race 6, it is therefore prevented that retaining ring 8 and bearing inner race 6 are worn, and are prolonged
The service life of long retaining ring 8 and bearing inner race 6；Annulus 7 is threadedly coupled with 6 inner surface of bearing inner race, annulus 7 and bearing inner race
6 interference fits, by rotating ring 7, so that 7 retraction bearing inner race 6 of annulus, because between annulus 7 and bearing inner race 6 being interference
Cooperation, so bearing inner race 6 has extruding force to annulus 7,7 inclined-plane of annulus is used cooperatively with 8 inclined-plane of retaining ring, and annulus 7 will be by
Extruding force retaining ring inclined-plane 8a is applied to by 7 inclined-plane of annulus；Retaining ring 8 include retaining ring inclined-plane 8a, retaining ring 8 it is transversal
Face is isosceles triangle, and retaining ring inclined-plane 8a is located at the two sides of retaining ring 8, the tilt angle of two sides retaining ring inclined-plane 8a, inclined-plane
Size it is all the same so that two sides retaining ring inclined-plane 8a is directed to direction of axis line by the resultant force of the extruding force of annulus 7, and
And this with joint efforts should be big as far as possible, and retaining ring 8 could be made shaft locking.
As seen in figures 3-6, limiting groove 16 is annular stop groove 16, and retention bead 13 is annular stop protrusion 13, limit
It is provided with the first sawtooth 16a on the groove 16 of position, the angle between the first two neighboring teeth of sawtooth 16a is angle a, and the angle of angle a is 60-
90 degree, the second sawtooth 13a matched with the first sawtooth 16a is provided in retention bead 13.
Through the above technical solutions, the limiting groove 16 for playing 1 axial displacement of limitation bearing and retention bead 13 are divided
It is not set as annular stop groove 16 and annular stop protrusion 13, limiting groove 16 and retention bead in certain can be made
13 wear, i.e., the sawtooth on the first sawtooth 16a and the second sawtooth 13a is worn, when can not play position-limiting action, other
The limiting groove 16 and retention bead 13 in place can still play the role of limit；First sawtooth 16a and the second sawtooth 13a are removed
It can carry out position-limiting action in the axial direction, additionally it is possible to prevent the relative rotation of bearing block Yu bearing outer ring 4.First sawtooth 16a
Angle between two neighboring teeth is angle a, to not occurring between bearing block and bearing outer ring 4 relative rotation selection, the
Angle, that is, angle a between the one two neighboring teeth of sawtooth 16a should be as small as possible, so select angle a for acute angle, but if angle a
If angle is too small, sawtooth can be made excessively sharp, accelerate the abrasion of sawtooth, reduction bearing block and bearing outer ring 4 significantly uses the longevity
Life, therefore select the angular range of angle a for 60-70 degree.
Third sawtooth 15a is provided on link slot 15, the angle between the two neighboring teeth of third sawtooth 15a is angle b, angle b's
Angle is 120-130 degree, and the 4th sawtooth 14a with third sawtooth 15a cooperation is provided on engaging lug 14.
Through the above technical solutions, first bearing seat 1 and second bearing seat 2 are gone back in addition to that can be positioned by bolt
It can be matched by third sawtooth 15a on link slot 15 and the 4th sawtooth 14a to be positioned, third sawtooth 15a and
Four sawtooth 14a cooperate, and reduce the pressure that bolt and bolt hole are subject in fixed bearing block to a certain extent, reduce
Abrasion between bolt and bolt hole, to extend the service life of bolt and bolt hole；And the first sawtooth 16a adjacent two
The angle of angle angle b between a teeth is not suitable for too small, is on the one hand because of the company of rising between first bearing seat 1 and second bearing seat 2
It connects fixed mainly by bolt and bolt hole, if another party's face angle b is too small, meeting can be made so that sawtooth is excessively sharp, quickening sawtooth
Abrasion, shorten the service life of bearing block, the angle of angle b be also not suitable for it is excessive, if excessive, can not play reduce bolt and
The pressure that bolt hole is subject in fixed bearing block, therefore select the angular range of angle b for 120-130 degree, it can either play and subtract
The effect of small pressure and positioning does not easily lead to abrasion yet.
It is arranged jagged in retaining ring 8, indentation, there is provided with rubber band 9, and the width of rubber band 9 is equal to the width of retaining ring 8
Degree.
Through the above technical solutions, it is jagged because of being arranged in retaining ring 8, when retaining ring 8 is directed toward axis by annulus 7
When the resultant force of heart line, retaining ring 8 reduces, so that bearing inner race 6 is clamped on axis；Indentation, there is provided with rubber band 9, initially
Under state, rubber band 9 is under tensional state, because rubber band 9 is flexible, the rubber band 9 in tensional state wants extensive
Complex elasticity, so rubber band 9 also has to retaining ring 8 so that the elastic force that retaining ring 8 is shunk, this elastic force make retaining ring 8 into one
Step reduces, further such that bearing 1 is axis clamping.
One end of bearing outer ring 4 is provided with positioning protrusion 12, is provided with positioning in first bearing seat 1 and second bearing seat 2
The locating aperture 11 that protrusion 12 is used cooperatively.
Through the above technical solutions, positioning protrusion and locating aperture 11 are used in combination, on the one hand make 4 He of bearing outer ring
Relative rotation does not occur for bearing block, prevents from misplacing between bearing outer ring 4 and bearing block, reduces bearing outer ring 4 and bearing block
Between sliding friction, to reduce the abrasion between bearing outer ring 4 and bearing block, on the other hand, the saw in the first sawtooth 16a
Sawtooth in tooth and the second sawtooth 13a have passed through running-in period after first time assembles use, to reach mutual coordination, close
The effect of cooperation, so that the cooperation of bearing block and bearing outer ring 4 is more stable, weight after bearing outer ring 4 and bearing block disassembly
Newly assembled, if being not provided with positioning protrusion 12 and locating aperture 11, may be such that sawtooth in the first sawtooth 16a with
Sawtooth in second sawtooth 13a needs to undergo running-in period again, or the saw in possible first sawtooth 16a and the second sawtooth 13a
Tooth can not be merged, and the fiting effect of bearing block and bearing outer ring 4 is influenced, and influence the first sawtooth 16a's and the second sawtooth 13a
The effect of limit.
The locating aperture 11 of first bearing seat 1 is not identical as 11 shape of locating aperture of second bearing seat 2, locating aperture 11
Shape be rectangle, trapezoidal or circular arc type.
Through the above technical solutions, because first bearing seat 1 and second bearing seat 2 are much like in structure, by the
The shape of the locating aperture 11 of one bearing block 1 and the locating aperture 11 of second bearing seat 2 are shaped to different shapes, into one
Corresponding second sawtooth of sawtooth when step is so that re-start assembling after bearing outer ring 4 and bearing block disassembly, in the first sawtooth 16a
Sawtooth in 13a is mutually matched sawtooth when assembly uses for the first time, and it is good to ensure that bearing outer ring 4 and bearing block carry out
Cooperation.
The isosceles triangle of 8 cross section of retaining ring is obtuse triangle, and the angle at obtuse angle is 150-160 degree.
Through the above technical solutions, retaining ring 8 is the inner surface for being set to bearing inner race 6, the use of retaining ring 8 should not
The use of bearing inner race 6 is influenced, so the thickness of retaining ring 8 will be designed than relatively thin, in the case where same thickness, retaining ring
The angle at 8 tips is bigger, and retaining ring 8 and the contact area of axis are also bigger, and retaining ring 8 is more uniform to the pressure of axis, retaining ring 8
The effect of lock shaft is also better, therefore it is obtuse triangle that we, which choose isosceles triangle, but the obtuse angle is triangular also not
Can be too big, if obtuse angle angle is too big, retaining ring 8 can be become smaller by the resultant force that axial line is directed toward on both sides, and retaining ring 8
The power of shaft locking will become smaller, and retaining ring 8 can weaken the effect that axis is tightened, so selecting the angle at obtuse angle for 150-160 degree.
When assembling the bearing arrangement, rolling element 5 is placed between bearing outer ring 4 and bearing inner race 6 first, then successively
Annulus 7, retaining ring 8 are rotated into bearing inner race 6, first bearing seat 2 and second bearing seat 3 are finally fixed on the outer of bearing
Face.
At work, resultant force of the two sides retaining ring inclined-plane 8a by the extruding force of annulus 7, rubber band 9 is right for the bearing arrangement
Retaining ring 8 also has so that the elastic force that retaining ring 8 is shunk, these make retaining ring 8 shaft locking with joint efforts, so that axis can be steady
Fixed rotation.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of bearing arrangement of automatically lock positioning, it is characterised in that: the bearing arrangement includes bearing (1) and bearing block,
The bearing (1) includes bearing outer ring (4), bearing inner race (6) and rolling element (5), the bearing outer ring (4) and bearing inner race
(6) it is coaxially disposed, the rolling element (5) is set between bearing outer ring (4) and bearing inner race (6), in the bearing inner race (6)
Surface is provided with retaining ring (8), and bearing outer ring (4) outer surface is provided with limiting groove (16), and the bearing block is provided with
The retention bead (13) being used cooperatively with limiting groove (16).
2. a kind of bearing arrangement of automatically lock positioning according to claim 1, it is characterised in that: the bearing block is point
Body formula structure comprising first bearing seat (2) and second bearing seat (3), the first bearing seat (2) and second bearing seat (3)
On be provided with engaging lug (14) and link slot (15), the engaging lug (14) of the first bearing seat (2) and second bearing seat (3)
Engaging lug (14) structure it is identical, the link slot (15) of the link slot (15) of the first bearing seat (2) and second bearing seat (3)
Structure is identical, and bolt hole, the engaging lug of the first bearing seat (2) are provided on the engaging lug (14) and link slot (15)
(14) it is used cooperatively with the link slot (15) of second bearing seat (3), the engaging lug (14) and first axle of the second bearing seat (3)
The link slot (15) for holding seat (2) is used cooperatively.
3. a kind of bearing arrangement of automatically lock positioning according to claim 2, it is characterised in that: the bearing inner race
(6) there are two retaining ring (8), described two retaining rings (8) are respectively arranged at the two of bearing inner race (6) inner surface for inner surface setting
The cross section at end, the retaining ring (8) is isosceles triangle, and the retaining ring (8) includes retaining ring tip and retaining ring inclined-plane
(8a) is provided with arc rubber (10) between the retaining ring tip and bearing inner race (6) inner surface, the bearing inner race (6)
Inner surface is additionally provided with annulus (7), and the annulus (7) is provided with the annulus inclined-plane of retaining ring inclined-plane (8a) cooperation, the annulus
(7) it is threadedly coupled with bearing inner race (6) inner surface, the annulus inclined-plane is threadedly coupled with retaining ring inclined-plane (8a).
4. a kind of bearing arrangement of automatically lock positioning according to claim 3, it is characterised in that: the limiting groove
It (16) is annular stop groove (16) that the retention bead (13) is that annular stop is raised (13), on the limiting groove (16)
It is provided with the first sawtooth (16a), the angle between the two neighboring teeth of first sawtooth (16a) is angle a, and the angle of the angle a is
60-70 degree is provided with the second sawtooth (13a) matched with the first sawtooth (16a) on the retention bead (13).
5. a kind of bearing arrangement of automatically lock positioning according to claim 4, it is characterised in that: the link slot (15)
On be provided with third sawtooth (15a), the angle between the two neighboring teeth of first sawtooth (16a) be angle b, the angle of the angle b
For 120-130 degree, the 4th sawtooth (14a) with third sawtooth (15a) cooperation is provided on the engaging lug (14).
6. a kind of bearing arrangement of automatically lock positioning according to claim 5, it is characterised in that: the retaining ring (8)
Upper setting is jagged, and the indentation, there is provided with rubber band (9), and the width of the rubber band (9) is equal to the width of retaining ring (8)
Degree.
7. a kind of bearing arrangement of automatically lock positioning according to claim 6, it is characterised in that: the first bearing seat
(2) and in second bearing seat (3) it is provided with locating aperture (11), is provided with locating aperture (11) on the bearing outer ring (4) and matches
Close the positioning protrusion (12) used.
8. a kind of bearing arrangement of automatically lock positioning according to claim 7, it is characterised in that: the first bearing seat
(2) locating aperture (11) is not identical as locating aperture (11) shape of second bearing seat (3).
9. a kind of bearing arrangement of automatically lock positioning according to claim 8, it is characterised in that: the retaining ring (8)
The isosceles triangle of cross section is obtuse triangle, and the angle at the obtuse angle is 150-160 degree.
10. a kind of bearing arrangement of automatically lock positioning according to claim 9, it is characterised in that: the locating aperture
(11) shape is rectangle, trapezoidal or circular arc type.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811563915.8A CN109707741B (en) | 2018-12-20 | 2018-12-20 | Bearing device capable of automatically locking and positioning |
| CN202010263680.1A CN111536163A (en) | 2018-12-20 | 2018-12-20 | Bearing device capable of automatically locking and positioning |
| CN202010263696.2A CN111536164A (en) | 2018-12-20 | 2018-12-20 | Bearing device capable of automatically locking and positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811563915.8A CN109707741B (en) | 2018-12-20 | 2018-12-20 | Bearing device capable of automatically locking and positioning |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010263696.2A Division CN111536164A (en) | 2018-12-20 | 2018-12-20 | Bearing device capable of automatically locking and positioning |
| CN202010263680.1A Division CN111536163A (en) | 2018-12-20 | 2018-12-20 | Bearing device capable of automatically locking and positioning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109707741A true CN109707741A (en) | 2019-05-03 |
| CN109707741B CN109707741B (en) | 2020-04-24 |
Family
ID=66256986
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811563915.8A Active CN109707741B (en) | 2018-12-20 | 2018-12-20 | Bearing device capable of automatically locking and positioning |
| CN202010263680.1A Pending CN111536163A (en) | 2018-12-20 | 2018-12-20 | Bearing device capable of automatically locking and positioning |
| CN202010263696.2A Pending CN111536164A (en) | 2018-12-20 | 2018-12-20 | Bearing device capable of automatically locking and positioning |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010263680.1A Pending CN111536163A (en) | 2018-12-20 | 2018-12-20 | Bearing device capable of automatically locking and positioning |
| CN202010263696.2A Pending CN111536164A (en) | 2018-12-20 | 2018-12-20 | Bearing device capable of automatically locking and positioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN109707741B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126786A (en) * | 2022-08-10 | 2022-09-30 | 新昌县华鼎机械有限公司 | Bearing with high-precision installation auxiliary part and installation process of bearing |
| CN115126786B (en) * | 2022-08-10 | 2024-04-30 | 新昌县天拓机械有限公司 | Bearing with high-precision mounting auxiliary piece and mounting process thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111536164A (en) | 2020-08-14 |
| CN111536163A (en) | 2020-08-14 |
| CN109707741B (en) | 2020-04-24 |
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