CN209026011U

CN209026011U - A kind of double-row roller bearing

Info

Publication number: CN209026011U
Application number: CN201821406978.8U
Authority: CN
Inventors: 洪斌
Original assignee: C&U Group Ltd
Current assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2018-08-29
Filing date: 2018-08-29
Publication date: 2019-06-25
Anticipated expiration: 2028-08-29

Abstract

The utility model discloses a kind of double-row roller bearings, including outer ring and inner ring, two column rollers are provided between outer ring and inner ring, each column roller correspondence is installed on a retainer, the axially external of each retainer is also provided with a sealing device, the sealing device includes skeleton and sealing lip, sealing lip is fixed in the radial inner end of skeleton, and keep in sealing contact with inner ring, the groove for the insertion of skeleton radial outer end is offered on the inner ring surface of the outer ring, and the bumper ring that section is U-shaped is additionally provided between the axial sides and recess sidewall of skeleton radial outer end, the skeleton is towards being also provided with inserting groove on the end face of retainer, it is correspondingly arranged in the axial outer end of retainer and constitutes the plug division being plugged and fixed with the inserting groove on side skeleton, the elastic ring that a section is V-arrangement is also folded between two column rollers, it is logical It crosses using the above structure, the utility model provides a kind of double-row roller bearing that can effectively avoid two retainers from occurring mutually to hit.

Description

A kind of double-row roller bearing

Technical field

The utility model relates to technical field of bearings, and in particular to a kind of double-row roller bearing.

Background technique

Double-row roller bearing mainly includes outer ring and inner ring, and two column rollers, each column roller are provided between outer ring and inner ring Correspondence is installed on a retainer, but since the practical spacing of two retainers is smaller, when axial float occurs for bearing, It can accordingly drive two retainers to occur mutually to hit, to cause the operation that bearing can not be stable, and greatly shorten making for bearing Use the service life.

Utility model content

In view of the deficiencies of the prior art, the utility model provide it is a kind of can effectively avoid two retainers occur mutually hit Double-row roller bearing.

To achieve the above object, the utility model provides a kind of double-row roller bearing, including outer ring and inner ring, outer ring and Two column rollers are provided between inner ring, each column roller correspondence is installed on a retainer, and the axially external of each retainer is gone back It is provided with a sealing device, the sealing device includes skeleton and sealing lip, and the diameter that sealing lip is fixed at skeleton is inside It on end, and keeps in sealing contact with inner ring, the groove for the insertion of skeleton radial outer end is offered on the inner ring surface of the outer ring, and The bumper ring that section is U-shaped, the axis of the bumper ring are additionally provided between the axial sides and recess sidewall of skeleton radial outer end It is fixedly welded on skeleton to one end, the axial other end of bumper ring is resisted against on the side wall of the groove, the skeleton direction It is also provided with inserting groove on the end face of retainer, is correspondingly arranged in the axial outer end of retainer and with the inserting groove on side skeleton The plug division being plugged and fixed is constituted, the elastic ring that a section is V-arrangement is also folded between two column rollers, and in the elastic ring It is provided with oil storage sponge, is corresponded on elastic ring and offers multiple through-holes for grease outflow.

The beneficial effects of the utility model are: using the above structure, passing through the fixation grafting of the plug division and inserting groove Cooperation, to retainer correspondence is fixed on ipsilateral skeleton, simultaneously because the axial sides of skeleton radial outer end and outer ring The bumper ring that section is U-shaped is additionally provided between recess sidewall, therefore when axial float occurs for bearing, it is slow by the U-shaped The buffer protection for rushing circle can effectively avoid two retainers and occur mutually to hit.In addition, due to being also folded with one between two column rollers Section is the elastic ring of V-arrangement, and oil storage sponge is provided in the elastic ring, and correspondence offers multiple for grease on elastic ring The through-hole of outflow, therefore when axial float occurs for bearing, two column rollers can correspond to compression V-arrangement elastic ring, be located to squeeze Oil storage sponge in it, and release grease to lubricate roller, thus the setting of the elastic ring and oil storage sponge can not only be through Perseverance releases grease to lubricate bearing, and further avoids two fender brackets and occur mutually to hit.

The utility model can be further arranged to be additionally provided with bending on the open end of the V-arrangement elastic ring comprising living in two guarantors The bending part of frame axial inner ends is held, and the section of the bending part is set in the conical hopper shape that axial outer end is greater than axial inner ends It sets.By the way that bending part is arranged, two fender brackets can not only be further avoided and occur mutually to hit, but also convenient for addition lubricating oil Rouge.

The utility model may further be provided to be added for corresponding axially external be provided in the bending part in the outer ring Oily channel.By the way that filling passage is arranged, lubricant grease can be added in time convenient for people.

It is compatible swallow-tail form knot that the utility model, which may further be provided as the section of the inserting groove and plug division, Structure.In this way, stronger reliable after grafting.

Detailed description of the invention

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

Fig. 2 is the portion the A enlarged drawing of Fig. 1；

Fig. 3 is the portion the B enlarged drawing of Fig. 1.

Specific embodiment

A kind of double-row roller bearing, including outer ring 1 and inner ring 2 are given as shown in Figure 1, 2, 3, between outer ring 1 and inner ring 2 Two column rollers 3 are provided with, the correspondence of each column roller 3 is installed on a retainer 4, and each the axially external of retainer 4 is also all provided with It is equipped with a sealing device, the sealing device includes skeleton 5 and sealing lip 9, and the diameter that sealing lip 9 is fixed at skeleton 5 is inside It on end, and keeps in sealing contact with inner ring 2, the groove for the insertion of 5 radial outer end of skeleton is offered on the inner ring surface of the outer ring 1 11, and the bumper ring 6 that section is U-shaped is additionally provided between 11 side wall of the axial sides of 5 radial outer end of skeleton and groove, it is described slow Axial one end of punching circle 6 is fixedly welded on skeleton 5, and the axial other end of bumper ring 6 is resisted against on the side wall of the groove 11, The skeleton 5 towards inserting groove 51 is also provided on the end face of retainer 4, be correspondingly arranged in the axial outer end of retainer 4 with With the plug division 41 that the composition of inserting groove 51 on side skeleton 5 is plugged and fixed, the section of the inserting groove 51 and plug division 41 is phase The swallowtail-shaped structure of adaptation.The elastic ring 7 that a section is V-arrangement is also folded between two column rollers 3, and in the elastic ring 7 It is provided with oil storage sponge 8, is corresponded on elastic ring 7 and offers multiple through-holes 71 for grease outflow.The V-arrangement elastic ring 7 is opened Bending part 72 of the bending comprising living two retainers, 4 axial inner ends is additionally provided on mouth end, and the section of the bending part 72 is in axis It is arranged outward greater than the conical hopper shape of axial inner ends.The corresponding axially external setting in the bending part 72 in the outer ring 1 There is filling passage 12.

Using the above structure, mating by the plug division 41 and the fixation of inserting groove 51, so that retainer 4 is right It should be fixed on ipsilateral skeleton 5, simultaneously because also being set between 11 side wall of the axial sides of 5 radial outer end of skeleton and outer ring groove It is equipped with the bumper ring 6 that section is U-shaped, therefore when axial float occurs for bearing, by the buffer protection of the U-shaped bumper ring 6, It can effectively avoid two retainers 4 to occur mutually to hit.In addition, due to being also folded with the bullet that a section is V-arrangement between two column rollers 3 Property circle 7, and oil storage sponge 8 is provided in the elastic ring 7, on elastic ring 7 it is corresponding offer it is multiple for the logical of grease outflow Hole 71, therefore when axial float occurs for bearing, two column rollers 3 can correspond to compression V-arrangement elastic ring 7, to squeeze position in the inner Oil storage sponge 8, and release grease to lubricate roller 3, thus the setting of the elastic ring 7 and oil storage sponge 8 can not only be through Perseverance releases grease to lubricate bearing, and further avoids two fender brackets 4 and occur mutually to hit.

Claims

1. a kind of double-row roller bearing, including outer ring and inner ring, are provided with two column rollers between outer ring and inner ring, each column roller is equal Correspondence is installed on a retainer, it is characterised in that: the axially external of each retainer is also provided with a sealing device, described Sealing device includes skeleton and sealing lip, and sealing lip is fixed in the radial inner end of skeleton, and keeps sealing to connect with inner ring It touches, the groove for the insertion of skeleton radial outer end, and the axial sides of skeleton radial outer end is offered on the inner ring surface of the outer ring The bumper ring that section is U-shaped is additionally provided between recess sidewall, axial one end of the bumper ring is fixedly welded on skeleton, The axial other end of bumper ring is resisted against on the side wall of the groove, and the skeleton is slotting towards being also provided on the end face of retainer Access slot is correspondingly arranged in the axial outer end of retainer and constitutes the plug division being plugged and fixed with the inserting groove on side skeleton, and two It is also folded with a section between column roller and is the elastic ring of V-arrangement, and is provided with oil storage sponge in the elastic ring, on elastic ring It is corresponding to offer multiple through-holes for grease outflow.

2. a kind of double-row roller bearing according to claim 1, it is characterised in that: on the open end of the V-arrangement elastic ring It is additionally provided with bending part of the bending comprising living two retainer axial inner ends, and the section of the bending part is greater than axis in axial outer end It is arranged to the conical hopper shape of inner end.

3. a kind of double-row roller bearing according to claim 2, it is characterised in that: the outer ring is corresponding in the bending part Axially external be provided with filling passage.

4. a kind of double-row roller bearing according to claim 1 or 2 or 3, it is characterised in that: the inserting groove and plug division Section be compatible swallowtail-shaped structure.