CN205639293U

CN205639293U - Spherical -roller bearing

Info

Publication number: CN205639293U
Application number: CN201620501695.6U
Authority: CN
Inventors: 叶杰杰
Original assignee: Raffiner Technology Co Ltd
Current assignee: Raffiner Technology Co Ltd
Priority date: 2016-05-27
Filing date: 2016-05-27
Publication date: 2016-10-12
Anticipated expiration: 2026-05-27

Abstract

The utility model discloses a spherical -roller bearing, which comprises an inner ring and an outer ring, be provided with the roller of biserial between outer lane and the inner circle, be provided with the holder between inner circle and the outer lane, the outer lane radially is provided with through -hole, biserial along self be formed with first oiling chamber between the relative terminal surface of roller, the one end and the outside intercommunication of through -hole, the other end and the first oiling chamber intercommunication of through -hole, form second oiling chamber between holder and the inner circle, be provided with on the holder and make first oiling chamber and the second oiling chamber oil filler point of intercommunication each other. Second oiling chamber is that the effect in good closed second oiling chamber has been played in second oiling chamber by what form between the lateral wall of holder and inner circle, avoids lubricating oil to flow from the clearance mediad between the roller outward, has reduced revealing of lubricating oil, extension and opinion spherical -roller bearing's life.

Description

Spheric roller bearing

Technical field

This utility model relates to bearing, particularly to a kind of spheric roller bearing.

Background technology

Roller bearing is to use short cylindrical, circular cone or drum-shaped roller as the rolling bearing of rolling element, mainly has the structural shapes such as centripetal short columnar roller, double-row spherical roller, taper roller and thrust roller.

And the rolling surface of roller spherically shape be referred to as spheric roller bearing, use the bearing of this roller to have automatic aligning performance, the biggest load can be born.Spherical roller divides asymmetric and symmetric figure, general asymmetrical large end face to be sphere, and the both ends of the surface of symmetric figure are planar end surface.Symmetric figure spherical roller better performances, and asymmetric for eliminating form.

In prior art, the patent of invention that publication No. is " CN 102852970 A " discloses a kind of symmetrical spherical roller arc surface bearing, but this kind of bearing is in use, lubrication between its roller needs to be realized by oil addition, but at general spheric roller bearing, lubricating oil can be revealed from the contact position of roller with inside and outside circle, thus causes needing oil addition to be often lubricated roller, very lost labor.

Utility model content

The purpose of this utility model is to provide a kind of spheric roller bearing reducing oil leakage.

Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of spheric roller bearing, including inner ring and outer ring, the roller of biserial it is provided with between described outer ring and inner ring, it is provided with retainer between described inner ring and outer ring, described outer ring has been radially arranged through hole along self, the first oiling chamber it is formed with between roller opposing end surface described in biserial, one end of described through hole and ft connection, the other end of described through hole and the connection of the first oiling chamber, the second oiling chamber is formed between described retainer and inner ring, the oil filler point making the first oiling chamber and the second oiling chamber be interconnected it is provided with on described retainer.

By using technique scheme, lubricating oil from lead to the hole site to the first oiling intracavitary administration, the top half making roller is lubricated, then by the oil filler point on retainer, lubricating oil is made to enter into the second oiling intracavity, by including biserial roller, rotation between outer ring, roller is rotated at the second oiling intracavity, so that biserial roller is lubricated in rotation process, strengthen lubricant effect, second oiling chamber is to be formed by between retainer and the sidewall of inner ring simultaneously, second oiling chamber serves the effect in good closing the second oiling chamber, avoid lubricating oil gap between roller outwardly, decrease the leakage of lubricating oil, the service life of spheric roller bearing in prolongation.

As preferably, described oil filler point is positioned at the centre position of retainer.

By using technique scheme, oil filler point is positioned at the centre position of retainer, oil filler point is made to be placed exactly in the lower section of through hole, during lubricating oil drips in through hole directly down, some can be directly over oil filler point and enter into the second oiling intracavity, thus serve acceleration lubricating oil and enter the effect of the second oiling intracavity, facilitate the injection of fluid.

As preferably, described oil filler point is arranged on retainer ringwise.

By using technique scheme, by this kind of set-up mode, when bearing is during rotating, lubricating oil can be by oil filler point instead to the first oiling intracavity, thus the roller being pointed to retainer top is lubricated so that bearing is in rotation process, and it is constantly subjected to lubricant effect.

As preferably, described retainer is U-shaped along the cross section of bearing radial direction, and described retainer is arranged at intervals with the holding chamber for grip roller.

By using technique scheme, the both sides of the retainer taken the shape of the letter U can good sealing effect, prevent the outside seepage of lubricating oil, on retainer, offer holding chamber simultaneously, holding chamber serves the effect of fixing roller, simultaneously when roller is in rotary course, roller constantly contacts with the lubricating oil being positioned at the second oiling intracavity, and the second oiling chamber serves the good lubricant effect to roller.

As preferably, the position that described retainer contacts with inner ring is formed for the lubrication gap of outflow of lubrication oil.

By using technique scheme, lubrication gap serves two effects, and one is, by being formed with lubrication gap, so that retainer is during rotating, it is to avoid the friction between retainer and inner ring；It is two for being provided by lubrication gap, and in use, lubricating oil can be formed isolation through lubrication gap, reduce friction when rotating between retainer and inner ring between retainer and inner ring, improves efficiency when spheric roller bearing rotates.

As preferably, described outer ring forms groove at lead to the hole site concave downward, and described groove is provided with type of tamper evidence.

By using technique scheme, groove serves to be avoided during oiling, the effect that lubricating oil flows outside through hole, after the lubricating oil of the second oiling intracavity fills, groove can accommodate some lubricating oil oozed out, effectively avoid lubricating oil flow to the surface of bearing, serve the effect ensureing that the surface of bearing is not contaminated, on groove, it is provided with type of tamper evidence simultaneously, type of tamper evidence serves the effect of blocking through hole, avoid when bearing working, lubricating oil flows outwardly, cause the waste of lubricating oil, the problem avoiding in other words occurring between bearing outer ring and link position to skid.

As preferably, the inner side of the longitudinal cross-section of described outer ring is curved, and the inner side of described outer ring is provided with chamfering with the position of the end contact of outer ring.

By using technique scheme, the effect accommodating spherical roller is served inside the outer ring of arc, serve the effect of fixing spherical roller, roller can be formed with corner angle in the position of sphere Yu end contact simultaneously, simultaneously because the inner side of outer ring is curved, so the corner angle of roller are easy to wear and tear between the inner side of outer ring, by being provided with chamfering in this position, chamfering serves the problem avoiding corner angle position impaired, serves the effect improving bearing rotation precision.

As preferably, the profile of the longitudinal cross-section of described inner ring includes the most excessive the first ogee face, horizontal plane and the second ogee face, and described oil filler point is perpendicular to horizontal plane and arranges.

By using technique scheme, first ogee face and the second ogee face serve the effect of outward-dipping for bearing setting, bearing is made to can be good at the active force overcoming bearing axial, the effect of horizontal plane simultaneously is to prevent the process moved inward at roller from serving spacing effect, the roller preventing biserial moves to centre, thus the problem causing both to collide each other, improve the life-span of bearing.

As preferably, the sidewall that described type of tamper evidence contacts with through hole being evenly distributed with annular snap caulking groove, the sidewall of type of tamper evidence is provided with the elastic component coordinated with annular snap caulking groove.

By using technique scheme, annular snap caulking groove cooperates with elastic component, elastic component card embeds in annular snap caulking groove, owing to elastic component has elasticity, thus serves the effect of closed ring caulking groove, annular snap caulking groove is made to serve the effect of sealing, preventing oil leakage further, annular snap caulking groove is provided with multiple simultaneously, and the elastic component matched with annular snap caulking groove is also equipped with multiple, thus serve multi-layer sealed effect, improve sealing effectiveness.

In sum, this utility model has the advantages that the second oiling chamber is to be formed by between retainer and the sidewall of inner ring, second oiling chamber serves the effect in good closing the second oiling chamber, avoid lubricating oil gap between roller outwardly, decrease the leakage of lubricating oil, the service life of spheric roller bearing in prolongation.

Accompanying drawing explanation

Fig. 1 is generalized section of the present utility model；

Fig. 2 is the enlarged diagram of A portion shown in Fig. 1.

In figure, 1, inner ring；11, outer ring；111, groove；12, roller；13, retainer；14, through hole；15, oil filler point；16, holding chamber；2, the first oiling chamber；3, the second oiling chamber；4, lubrication gap；5, type of tamper evidence；51, annular snap caulking groove；52, elastic component；6, chamfering；71, the first ogee face；72, horizontal plane；73, the second ogee face.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.

As shown in Figure 1, a kind of spherical roller 12 bearing, including inner ring 1 and outer ring 11, the roller 12 of biserial it is provided with between outer ring 11 and inner ring 1, i.e. two row rollers 12 of vertical wraparound, retainer 13 it is provided with between inner ring 1 and outer ring 11, outer ring 11 has been radially arranged through hole 14 along self, the first oiling chamber 2 it is formed with between biserial roller 12 opposing end surface, first oiling chamber 2 is in semiclosed setting, the space between the roller 12 on retainer 13 top and ft connection are understood in i.e. first oiling chamber 2, one end of through hole 14 and ft connection, the other end and the first oiling chamber 2 of through hole 14 connect, the second oiling chamber 3 is formed between retainer 13 and inner ring 1, the oil filler point 15 making the first oiling chamber 2 and the second oiling chamber 3 be interconnected it is provided with on retainer 13.

As shown in Figure 1, oil filler point 15 needs to be arranged on the centre position of retainer 13, oil filler point 15 is circumferencial direction cincture retainer 13 setting along retainer 13 simultaneously, thus strengthen the oiling effect of oil filler point 15, retainer 13 of the present utility model is U-shaped along the cross section of bearing radial direction, thus serve the effect that the second oiling chamber about 3 is cut off, so that roller 12 is in rotation process, the surface of roller 12 is coated with lubricating oil, the holding chamber 16 for grip roller 12 it is arranged at intervals with on retainer 13, between sidewall and the sidewall of roller 12 of holding chamber 16 close to each other, lubricating oil forms oil sealing between the sidewall and the sidewall of roller 12 of holding chamber 16, decrease contacting between the sidewall of holding chamber 16 and roller 12, avoid wearing and tearing between the two.

As it is shown in figure 1, the position that retainer 13 contacts with inner ring 1 is formed with lubrication gap 4, lubrication gap 4 is for outflow of lubrication oil, decreases contacting between retainer 13 with inner ring 1, it is to avoid wear and tear between the two.

As shown in Figure 1, the inner side of the longitudinal cross-section of outer ring 11 is curved, the inner side of outer ring 11 is provided with chamfering 6 with the position of the end contact of outer ring 11, simultaneously on inner ring 1, the profile of the longitudinal cross-section of inner ring 1 includes the most excessive the first ogee face 71, horizontal plane 72 and the second ogee face 73, inside outer ring 11, the arc core in the 71, second ogee face 73, the first ogee face be positioned at the first oiling chamber 2, thus convenient being placed on spherical roller 12 between two cambered surfaces, oil filler point 15 is perpendicular to horizontal plane 72 and arranges simultaneously.

As shown in Figure 2, outer ring 11 forms groove 111 at through hole 14 position concave downward, type of tamper evidence 5 it is provided with on groove 111, the shape of groove 111 is truncated cone-shaped, being evenly distributed with annular snap caulking groove 51 with through hole 14 on the sidewall that type of tamper evidence 5 contacts, the sidewall of type of tamper evidence 5 is provided with the elastic component 52 coordinated with annular snap caulking groove 51, and elastic component 52 is rubber ring, thus serve the sealing effectiveness to lubricating oil, prevent lubricating oil reverse osmosis to the surface, outer ring 11 of bearing.

Claims

1. a spheric roller bearing, including inner ring (1) and outer ring (11), the roller (12) of biserial it is provided with between described outer ring (11) and inner ring (1), retainer (13) it is provided with between described inner ring (1) and outer ring (11), it is characterized in that: described outer ring (11) have been radially arranged through hole (14) along self, the first oiling chamber (2) it is formed with between roller described in biserial (12) opposing end surface, one end of described through hole (14) and ft connection, the other end of described through hole (14) and the connection of the first oiling chamber (2), the second oiling chamber (3) is formed between described retainer (13) and inner ring (1), the oil filler point (15) making the first oiling chamber (2) and the second oiling chamber (3) be interconnected it is provided with on described retainer (13).

Spheric roller bearing the most according to claim 1, it is characterised in that: described oil filler point (15) is positioned at the centre position of retainer (13).

Spheric roller bearing the most according to claim 2, it is characterised in that: described oil filler point (15) is arranged on retainer (13) ringwise.

Spheric roller bearing the most according to claim 1, it is characterized in that: described retainer (13) is U-shaped along the cross section of bearing radial direction, and described retainer (13) is arranged at intervals with the holding chamber (16) for grip roller (12).

Spheric roller bearing the most according to claim 4, it is characterised in that: the position that described retainer (13) contacts with inner ring (1) is formed for the lubrication gap (4) of outflow of lubrication oil.

Spheric roller bearing the most according to claim 4, it is characterized in that: described outer ring (11) form groove (111) at through hole (14) position concave downward, and described groove (111) is provided with type of tamper evidence (5).

Spheric roller bearing the most according to claim 6, it is characterized in that: the inner side of the longitudinal cross-section of described outer ring (11) is curved, the inner side of described outer ring (11) is provided with chamfering (6) with the position of the end contact of outer ring (11).

Spheric roller bearing the most according to claim 6, it is characterized in that: the profile of the longitudinal cross-section of described inner ring (1) includes the most excessive the first ogee face (71), horizontal plane (72) and the second ogee face (73), described oil filler point (15) is perpendicular to horizontal plane (72) and arranges.

Spheric roller bearing the most according to claim 6, it is characterized in that: be evenly distributed with annular snap caulking groove (51) with through hole (14) on the sidewall that described type of tamper evidence (5) contacts, the sidewall of type of tamper evidence (5) is provided with the elastic component (52) coordinated with annular snap caulking groove (51).