CN207454546U - A kind of single-row tapered roller is the double-row bearing of hollow-core construction - Google Patents

Abstract

A kind of single-row tapered roller is the double-row bearing of hollow-core construction, is related to a kind of double-row conical bearing, in taper roller A（5）Two bottom surfaces between be equipped with perforation cylindrical cavity（12）, in cavity（12）Sidewall spacers equidistantly be equipped with eight straight slots（13）, in cavity（12）Inside it is socketed with supporter（15）, taper roller B（11）Expand neck opposite side necking down for one side；The utility model in taper roller A by setting cavity, and supporter is set in the cavity, effectively alleviate the weight of taper roller A, enhance the bearing capacity after taper roller A is set to hollow, in the annular groove that outer ring inner wall both ends are set respectively after oil suction ring is respectively embedded into, when efficiently solving the utility model operation taper roller to machine inside get rid of oil the drawbacks of, realize the utility model high-speed smooth and purpose of long-life when being used in robot or host.

Description

A kind of single-row tapered roller is the double-row bearing of hollow-core construction

【Technical field】

The utility model is related to a kind of double-row conical bearings, are hollow knot more particularly, to a kind of single-row tapered roller 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 rely on retainer /V, since taper roller individual is larger, and since taper roller is generally metal material, so The dead weight of taper roller in itself is also larger, taper roll bearing in operation process by taper roller it is excessive, it is overweight influenced, nothing Method realizes the steady operating under higher rotation speed state.

【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 hollow-core construction Row bearing, by setting cavity in taper roller A, and sets supporter in the cavity, effectively alleviates taper roller A's Weight enhances the bearing capacity after taper roller A is set to hollow, is dividing in the annular groove that outer ring inner wall both ends are set respectively Not Qian Ru after oil suction ring, when efficiently solving the utility model operation taper roller to machine inside get rid of oil the drawbacks of, realize The utility model high-speed smooth and purpose of long-life when being used in robot 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 hollow-core construction 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 ends 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 is equipped with the cylindrical cavity of perforation between two bottom surfaces of taper roller A, is equidistantly equipped in the sidewall spacers of cavity Eight straight slots are socketed with supporter in the cavity, and supporter includes cylinder and M shape supports, and M shape support is socketed in cylinder It is interior and the inside of cylinder is divided into eight identical chambers, support eight endpoints corresponding with M shape on the outer wall of cylinder Position be respectively equipped with prominent item, the outer wall of cylinder and the side wall of cavity are in contact, and eight prominent items are respectively placed in eight straight slots Interior, taper roller B is the frustum that neck opposite side necking down is expanded in one side, and inner ring is two, by retainer by multiple spaced circles The expansion neck one side that cone roller A is located at interior ring outer wall according to the expansion neck one side of multiple taper roller A is limited to the annular of interior ring outer wall Between raised A and annular protrusion B, by another retainer by multiple spaced taper roller B according to multiple taper roller B Expansion neck one side be located at the expansion neck one side of another interior ring outer wall and be limited to the annular protrusion A of another interior ring outer wall and annular protrusion B Between, the both ends of outer ring outer ring inner wall are respectively fitted over outside the inner ring equipped with taper roller A and another inner ring equipped with taper roller B Portion.

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

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

The single-row tapered roller is the double-row bearing of hollow-core construction, 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.

The single-row tapered roller is the double-row bearing of hollow-core construction, and prominent item and straight slot are interference fit.

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 hollow-core construction, by being set in taper roller A Cavity is put, and supporter is set in the cavity, effectively alleviates the weight of taper roller A, enhances and is set in taper roller A Bearing capacity after hollow in the annular groove that outer ring inner wall both ends are set respectively after oil suction ring is respectively embedded into, efficiently solves During the utility model operation taper roller to machine inside get rid of oil the drawbacks of, realize the utility model in robot or host High-speed smooth and the purpose of long-life during upper use；The utility model is novel in design unique, highly practical, energy-saving, has 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 of the utility model and supporter fit structure schematic diagram；

Fig. 5 is the taper roller A structure diagrams of the utility model；

Fig. 6 is the supporting body structure schematic diagram 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, cavity；13rd, straight slot；14th, cylinder； 15th, supporter；16th, M shape supports；17th, chamber；18th, prominent item.

【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 1~6 is the double-row bearing of hollow-core construction, 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 ends 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 Be arranged to chamfered transition between end face, taper roller A5 expands neck opposite side necking down for one side, two bottom surfaces of taper roller A5 it Between be equipped with the cylindrical cavity 12 of perforation, be equidistantly equipped with eight straight slots 13 in the sidewall spacers of cavity 12, the socket in the cavity 12 There is supporter 15, supporter 15 includes cylinder 14 and M shape support 16, and M shape support 16 is socketed in cylinder 14 and will circle The inside of cylinder 14 is divided into eight identical chambers 17, supports 16 8 endpoints corresponding with M shape on the outer wall of cylinder 14 Position be respectively equipped with prominent item 18, the outer wall of cylinder 14 and the side wall of cavity 12 are in contact, and eight prominent items 18 are respectively placed in In eight straight slots 13, prominent item 18 and straight slot 13 are interference fit, and taper roller B11 is the cone that neck opposite side necking down is expanded in one side Platform, inner ring 9 is two, by retainer 6 by multiple spaced taper roller A5 according to the expansion neck one of multiple taper roller A5 The expansion neck one side that side is located at interior ring outer wall 8 is limited between the annular protrusion A7 of interior ring outer wall 8 and annular protrusion B10, by another Multiple spaced taper roller B11 are located at another inner ring by a retainer 6 according to the expansion neck one side of multiple taper roller B11 The expansion neck one side of outer wall 8 is limited between the annular protrusion A7 of another interior ring outer wall 8 and annular protrusion B10,1 outer ring inner wall of outer ring 4 both ends are respectively fitted over outside the inner ring 9 equipped with taper roller A5 and another inner ring 9 equipped with taper roller B11.

Implement the double-row bearing that single-row tapered roller described in the utility model is hollow-core construction, 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, in order to improve the running speed of the utility model and in taper roller A5 After interior setting cavity 12, in order to ensure the taper roller A5 not compressive deformations in operation process, supporter is set in cavity 12 15, the weight of taper roller A5 is not only effectively alleviated, and enhances carryings of the taper roller A5 after being arranged to hollow Power；The bearing oil smeared on ring outer wall 8 in two can be attached with the rotation of taper roller A5 and taper roller B11 in outer ring Expand the flowing of neck ends to the two of outer ring inner wall 4 on wall 4 and along outer ring inner wall 4, and most bearing oil is got rid of to machine inside at last, outside The annular groove 2 that two expansion neck ends of circle inner wall 4 are set respectively, can effectively will be along outer ring after oil suction ring 3 is respectively embedded into The bearing oil that inner wall 4 expands the flowing of neck end to the two of outer ring inner wall 4 adsorbs, and avoids the utility model operationally to machine inside The drawbacks of getting rid of bearing oil.

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

Claims (6)

1. a kind of single-row tapered roller is the double-row bearing of hollow-core construction, 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 ends 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 for one side, Taper roller A（5）Two bottom surfaces between be equipped with perforation cylindrical cavity（12）, in cavity（12）Sidewall spacers be equidistantly equipped with Eight straight slots（13）, in cavity（12）Inside it is socketed with supporter（15）, supporter（15）Including cylinder（14）It is supported with M shape （16）, M shape support（16）It is socketed in cylinder（14）It is interior and by cylinder（14）Inside be divided into eight identical chambers （17）, in cylinder（14）Outer wall on M shape support（16）Eight corresponding positions of endpoint are respectively equipped with prominent item （18）, cylinder（14）Outer wall and cavity（12）Side wall be in contact, eight prominent items（18）It is respectively placed in eight straight slots（13） It is interior, 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 Every the taper roller A of arrangement（5）According to multiple taper roller A（5）Expansion neck one side be located at interior ring outer wall（8）One lateral spacing of expansion neck It is scheduled on interior ring outer wall（8）Annular protrusion A（7）With annular protrusion B（10）Between, by another retainer（6）By multiple intervals The taper roller B of arrangement（11）According to multiple taper roller B（11）Expansion neck one side be located at another interior ring outer wall（8）Expansion neck one Lateral spacing is scheduled on another interior ring outer wall（8）Annular protrusion A（7）With annular protrusion B（10）Between, outer ring（1）Outer ring inner wall（4）'s Both ends are 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 hollow-core construction, 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 hollow-core construction, 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 hollow-core construction, 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 hollow-core construction, 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.

6. single-row tapered roller according to claim 1 is the double-row bearing of hollow-core construction, it is characterized in that：Prominent item（18） And straight slot（13）For interference fit.