CN207454544U - A kind of single-row tapered roller is the double-row bearing of combining structure - Google Patents

Abstract

A kind of single-row tapered roller is the double-row bearing of combining structure, is related to a kind of double-row conical bearing, taper roller A（5）Including rolling element A（12）, rolling element B（16）With rolling element C（19）, by retainer（6）By multiple spaced taper roller A（5）It is limited to interior ring outer wall（8）Annular protrusion A（7）With annular protrusion B（10）Between；The utility model passes through the three stage structure that is arranged to connect by flexural pivot between three rolling elements by taper roller A, it realizes after a rolling element in a taper roller A is worn, other two rolling elements can also work on, the annular groove set in outer ring inner wall is after embedded oil suction ring, when efficiently solving taper roll bearing operation taper roller to machine inside get rid of oil the drawbacks of, realize the utility model steady and long-life purpose when being used in robot or host.

Description

A kind of single-row tapered roller is the double-row bearing of combining structure

【Technical field】

The utility model is related to a kind of double-row conical bearings, are tied more particularly, to a kind of single-row tapered roller for combination The double-row bearing of structure.

【Background technology】

Bearing is a kind of important spare part in contemporary mechanical equipment, its major function is the mechanical rotary body of support, is dropped Coefficient of friction in its low motion process, and ensure its rotating accuracy；The hosts bearing such as lathe is mainly used for the main shaft of lathe, machine The main shaft bearing of bed is the core that lathe is able to good operation, and the apolegamy of different bearings just determines the different load of machine tool chief axis Ability, running speed, rigidity, Wen Sheng and service life, the especially influence to rigidity and Wen Sheng are more notable, so should basis The requirement of lathe working characteristics reasonably configures main shaft bearing；Existing main shaft bearing is generally taper roll bearing, circular cone rolling Sub- bearing, which is mainly used for bearing radial direction based on radial load and axial connected load, double-row conical bearing, to be born The radial load of bigger, in use, taper roller rolls taper roll bearing between the Internal and external cycle of bearing, circular cone rolling The both ends of son are by retainer /V, since single taper roller individual is larger, so wherein one in taper roll bearing After a taper roller abrasion deformation, this taper roller rolling track when rolling can become abnormal, it is easy to will be connect with it Tactile outer ring inner wall and interior ring outer wall are worn simultaneously, in turn result in the abrasion of other taper rollers, ultimately cause entire circular cone rolling Sub- bearing can not use.

【The content of the invention】

In order to overcome the shortcomings of in background technology, the utility model discloses a kind of single-row tapered roller as the double of combining structure Row bearing by the three stage structure for being arranged to connect by flexural pivot between three rolling elements by taper roller A, is realized when one After a rolling element in a taper roller A is worn, other two rolling elements can also work on, while reduce pair The abrasion of the utility model outer ring inner wall and interior ring outer wall, the annular groove set in outer ring inner wall have after embedded oil suction ring Effect when solving taper roll bearing operation taper roller to machine inside get rid of oil the drawbacks of, realize the utility model in machine Steady and the long-life purpose when being used on device people or host.

In order to realize the goal of the invention, the utility model adopts the following technical solution：

A kind of single-row tapered roller be combining structure double-row bearing, including outer ring, taper roller A, retainer, inner ring and Taper roller B, the outer ring inner wall of outer ring expand necking down among neck for both ends, and in outer ring, the both sides of inner wall are respectively equipped with annular groove, Respectively embedded with oil suction ring in two annular grooves, the interior ring outer wall of inner ring expands neck opposite side necking down for one side, in interior ring outer wall Expand neck one side and be equipped with annular protrusion A, annular protrusion B is equipped in the necking down one side of interior ring outer wall, taper roller A is another for one side expansion neck One side necking down, taper roller A include rolling element A, rolling element B and rolling element C, and rolling element A expands neck opposite side necking down for one side, One side end of expansion neck of rolling element A is equipped with cone A, and bulb A is equipped in the end of cone A, and rolling element B expands neck opposite side for one side Necking down, ball-and-socket A is equipped in the centre of one side end of rolling element B necking downs, expands the centre of one side end of neck in rolling element B Expand neck opposite side necking down for one side equipped with ball-and-socket B, rolling element C, cone B is equipped in one side end of necking down of rolling element C, in cone The end of B is equipped with bulb B, and bulb A is placed in ball-and-socket A and is connected with ball-and-socket A flexural pivots, and bulb B is placed in ball-and-socket B and and ball-and-socket B Flexural pivot connects, and taper roller B is the frustum that neck opposite side necking down is expanded in one side, and inner ring is two, is arranged multiple intervals by retainer The expansion neck one side that the taper roller A of row is located at interior ring outer wall according to the expansion neck one side of multiple taper roller A is limited to interior ring outer wall Annular protrusion A and annular protrusion B between, by another retainer by multiple spaced taper roller B according to multiple circles The expansion neck one side that the expansion neck one side of cone roller B is located at another interior ring outer wall is limited to the annular protrusion A and ring of another interior ring outer wall Between shape protrusion B, the both ends of outer ring outer ring inner wall are respectively fitted over inner ring equipped with taper roller A and equipped with the another of taper roller B Outside one inner ring.

The single-row tapered roller is the double-row bearing of combining structure, and the outer ring outer wall of outer ring is ring plain structure.

The single-row tapered roller is the double-row bearing of combining structure, in the outer ring outer wall of outer ring and the both ends of the surface of outer ring Between be arranged to chamfered transition.

The single-row tapered roller is the double-row bearing of combining structure, and the inner ring inner wall of inner ring is ring plain structure.

The single-row tapered roller is the double-row bearing of combining structure, in the inner ring inner wall of inner ring and the both ends of the surface of inner ring Between be arranged to chamfered transition.

By adopting the above-described technical solution, the utility model has the advantages that：

Single-row tapered roller described in the utility model is the double-row bearing of combining structure, by the way that taper roller A is set The three stage structure connected between three rolling elements by flexural pivot is realized when a rolling element in a taper roller A After wearing, other two rolling elements can also work on, while reduce to the utility model outer ring inner wall and inner ring The abrasion of outer wall, the annular groove set in outer ring inner wall efficiently solve taper roll bearing fortune after embedded oil suction ring During row taper roller to machine inside get rid of oil the drawbacks of, realize the utility model it is steady when being used in robot or host and The purpose of long-life；The utility model is novel in design unique, highly practical, energy-saving, there is very big market popularization value.

【Description of the drawings】

Fig. 1 is the structure diagram of the utility model；

Fig. 2 is the outer ring structure schematic diagram of the utility model；

Fig. 3 is the inner ring structure schematic diagram of the utility model；

Fig. 4 is the taper roller A assembling structure schematic diagrams of the utility model；

Fig. 5 is the taper roller A half sectional views of the utility model.

In figure：1st, outer ring；2nd, annular groove；3rd, oil suction ring；4th, outer ring inner wall；5th, taper roller A；6th, retainer；7th, ring Shape protrusion A；8th, interior ring outer wall；9th, inner ring；10th, annular protrusion B；11st, taper roller B；12nd, rolling element A；13rd, cone A；14th, ball Head A；15th, ball-and-socket A；16th, rolling element B；17th, bulb B；18th, cone B；19th, rolling element C；20th, ball-and-socket B.

【Specific embodiment】

The utility model can be explained in more detail by the following examples, the utility model is not limited to following Embodiment, open the purpose of this utility model are intended to all changes and improvements in protection the scope of the utility model；

Single-row tapered roller with reference to described in attached drawing 1~5 is the double-row bearing of combining structure, including outer ring 1, taper roller A5, retainer 6, inner ring 9 and taper roller B11, the outer ring inner wall 4 of outer ring 1 expand necking down among neck, the inner wall 4 in outer ring for both ends Both sides be respectively equipped with annular groove 2, respectively embedded with oil suction ring 3 in two annular grooves 2, the outer ring outer wall of outer ring 1 is ring-type Planar structure is arranged to chamfered transition, the interior ring outer wall 8 of inner ring 9 between the outer ring outer wall of outer ring 1 and the both ends of the surface of outer ring 1 Expand neck opposite side necking down for one side, annular protrusion A7 is equipped in the expansion neck one side of interior ring outer wall 8, in the necking down one of interior ring outer wall 8 Side is equipped with annular protrusion B10, and the inner ring inner wall of inner ring 9 is ring plain structure, in the inner ring inner wall and the two of inner ring 9 of inner ring 9 Chamfered transition is arranged between end face, taper roller A5 expands neck opposite side necking down for one side, and taper roller A5 includes rolling element A12, rolling element B16 and rolling element C19, rolling element A12 expands neck opposite side necking down for one side, in the expansion neck one side of rolling element A12 End is equipped with cone A13, and bulb A14 is equipped in the end of cone A13, and rolling element B16 expands neck opposite side necking down for one side, rolling The centre of one side end of kinetoplast B16 necking downs is equipped with ball-and-socket A15, and the centre for expanding one side end of neck in rolling element B16 is set There are ball-and-socket B20, rolling element C19 to expand neck opposite side necking down for one side, cone B18 be equipped in one side end of necking down of rolling element C19, Bulb B17 is equipped in the end of cone B18, bulb A14 is placed in ball-and-socket A15 and is connected with ball-and-socket A15 flexural pivots, and bulb B17 is put It is connected in ball-and-socket B20 and with ball-and-socket B20 flexural pivots, taper roller B11 is the frustum that neck opposite side necking down is expanded in one side, and inner ring 9 is Two, multiple spaced taper roller A5 are located at inner ring according to the expansion neck one side of multiple taper roller A5 by retainer 6 The expansion neck one side of outer wall 8 is limited between the annular protrusion A7 of interior ring outer wall 8 and annular protrusion B10, will by another retainer 6 Multiple spaced taper roller B11 are located at the expansion neck of another interior ring outer wall 8 according to the expansion neck one side of multiple taper roller B11 One side is limited between the annular protrusion A7 of another interior ring outer wall 8 and annular protrusion B10, the both ends difference of 1 outer ring inner wall 4 of outer ring It is sleeved on outside the inner ring 9 equipped with taper roller A5 and the inner ring 9 equipped with taper roller B11.

Implement the double-row bearing that single-row tapered roller described in the utility model is combining structure, in use, in two inner rings 9 Interior ring outer wall 8 on smear a small amount of bearing oil respectively, two retainers 6 are placed on two inner rings 9, then in a retainer Matched taper roller A5 is respectively put into the 6 multiple taper roller slots being equipped with, is equipped on another retainer 6 Multiple taper roller slots in be respectively put into matched taper roller B11, the both ends of 1 outer ring inner wall 4 of outer ring are distinguished It is sleeved on outside the inner ring 9 equipped with taper roller A5 and another inner ring 9 equipped with taper roller B11；The utility model is transported in high speed , it is necessary to bear from pressure axially and radially during row, taper roller A5 is arranged to by flexural pivot connect between three rolling elements The three stage structure connect, after a rolling element in a taper roller A5 is worn, other in taper roller A5 Two rolling elements can also run well, damage of the rolling element after abrasion to the outer ring inner wall 4 and interior ring outer wall 8 that are in contact with it It is smaller, it ensure that the even running of the utility model；The bearing oil smeared respectively on ring outer wall 8 in two can be with taper roller The rotation of A5 and taper roller B11 attaches on outer ring inner wall 4 and expands neck end stream along outer ring inner wall 4 to the two of outer ring inner wall 4 It is dynamic, and most bearing oil is got rid of to machine inside at last, the annular groove 2 that two expansion neck ends of inner wall 4 are set respectively in outer ring is respectively After embedded oil suction ring 3, the bearing oil that two along outer ring inner wall 4 to outer ring inner wall 4 can effectively be expanded to the flowing of neck end adsorbs, Avoid the drawbacks of the utility model operationally gets rid of bearing oil to machine inside.

The non-detailed portion of the utility model is the prior art.

Claims (5)

1. a kind of single-row tapered roller is the double-row bearing of combining structure, including outer ring（1）, taper roller A（5）, retainer （6）, inner ring（9）With taper roller B（11）, it is characterized in that：Outer ring（1）Outer ring inner wall（4）Expand necking down among neck for both ends, Outer ring inner wall（4）Both sides be respectively equipped with annular groove（2）, in two annular grooves（2）Oil suction ring is inside embedded with respectively（3）, inner ring （9）Interior ring outer wall（8）Expand neck opposite side necking down for one side, in interior ring outer wall（8）Expansion neck one side be equipped with annular protrusion A（7）, In interior ring outer wall（8）Necking down one side be equipped with annular protrusion B（10）, taper roller A（5）Expand neck opposite side necking down, circle for one side Bore roller A（5）Including rolling element A（12）, rolling element B（16）With rolling element C（19）, rolling element A（12）It is another to expand neck for one side Side necking down, in rolling element A（12）One side end of expansion neck be equipped with cone A（13）, in cone A（13）End be equipped with bulb A （14）, rolling element B（16）Expand neck opposite side necking down for one side, in rolling element B（16）The centre of one side end of necking down is equipped with Ball-and-socket A（15）, in rolling element B（16）The centre for expanding one side end of neck is equipped with ball-and-socket B（20）, rolling element C（19）For one side Expand neck opposite side necking down, in rolling element C（19）One side end of necking down be equipped with cone B（18）, in cone B（18）End be equipped with Bulb B（17）, bulb A（14）It is placed in ball-and-socket A（15）It is interior and with ball-and-socket A（15）Flexural pivot connects, bulb B（17）It is placed in ball-and-socket B （20）It is interior and with ball-and-socket B（20）Flexural pivot connects, taper roller B（11）Expand the frustum of neck opposite side necking down, inner ring for one side（9）For Two, by retainer（6）By multiple spaced taper roller A（5）According to multiple taper roller A（5）Expansion neck one side position In interior ring outer wall（8）Expansion neck one side be limited to interior ring outer wall（8）Annular protrusion A（7）With annular protrusion B（10）Between, by Another retainer（6）By multiple spaced taper roller B（11）According to multiple taper roller B（11）Expansion neck one side position In another interior ring outer wall（8）Expansion neck one side be limited to another interior ring outer wall（8）Annular protrusion A（7）With annular protrusion B（10） Between, outer ring（1）Outer ring inner wall（4）Both ends be respectively fitted over equipped with taper roller A（5）Inner ring（9）With equipped with taper roller B （11）Another inner ring（9）It is external.

2. single-row tapered roller according to claim 1 is the double-row bearing of combining structure, it is characterized in that：Outer ring（1）'s Outer ring outer wall is ring plain structure.

3. single-row tapered roller according to claim 2 is the double-row bearing of combining structure, it is characterized in that：In outer ring（1） Outer ring outer wall and outer ring（1）Both ends of the surface between be arranged to chamfered transition.

4. single-row tapered roller according to claim 1 is the double-row bearing of combining structure, it is characterized in that：Inner ring（9）'s Inner ring inner wall is ring plain structure.

5. single-row tapered roller according to claim 4 is the double-row bearing of combining structure, it is characterized in that：In inner ring（9） Inner ring inner wall and inner ring（9）Both ends of the surface between be arranged to chamfered transition.