CN217381281U

CN217381281U - Roller bearing

Info

Publication number: CN217381281U
Application number: CN202221217863.0U
Authority: CN
Inventors: 陈青
Original assignee: SHANGYU WANLI AUTO BEARING CO Ltd
Current assignee: SHANGYU WANLI AUTO BEARING CO Ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-09-06
Anticipated expiration: 2032-05-19

Abstract

The utility model discloses a roller bearing, which comprises a bearing inner ring, a bearing outer ring and a combined sealing element, wherein the bearing outer ring is sleeved outside the bearing inner ring, a plurality of holders are arranged between the bearing inner ring and the bearing outer ring, a plurality of spherical rollers are arranged on each holder, two combined sealing elements are symmetrically arranged at the left side and the right side of the bearing, two roller jackets are sleeved outside the bearing outer ring, the two roller jackets are symmetrically arranged, a semicircular arc concave rail groove is arranged on each roller jacket, the two semicircular arc concave rail grooves can be spliced to form a complete rail groove, the utility model is provided with a double-way seal, which can effectively prevent dust and leakage and prolong the service life of the bearing, the utility model is provided with a detachable roller jacket, the wear-resisting part and the transmission part of the bearing can be separated, thus, the fault part can be selectively replaced under the fault condition without scrapping the whole bearing, the daily maintenance cost is greatly reduced.

Description

Roller bearing

Technical Field

The utility model belongs to the technical field of the bearing product technique and specifically relates to a roller bearing is related to.

Background

The roller bearing is a special bearing product and is mainly used on mechanical equipment such as a travelling crane, the roller bearing is most commonly used as a sliding rail moving wheel, a rail groove is formed in the roller bearing so that the roller bearing can roll on the sliding rail, in the long-term use process, the abrasion of the rail groove and the blocking of a roller are the most main failure scrap reasons of the roller bearing, the whole roller bearing needs to be scrapped and replaced as long as one of the rail groove and the roller is generated, the production process of the roller bearing is complex, the value of the product is high, the roller bearing is used as a core easily-damaged driving medium, the failure probability is high, and the maintenance cost of the equipment is greatly improved due to long-term scrap.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a gyro wheel bearing.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a roller bearing, includes bearing inner race, combined seal spare, the bearing inner race suit is in the outside of bearing inner race, install a plurality of holder, every between bearing inner race and the bearing inner race all be equipped with a plurality of spherical roller on the holder, two the left and right sides at the bearing is installed to the combined seal spare symmetry, the outside cover of bearing inner race is equipped with two gyro wheel overcoat, two gyro wheel overcoat symmetry installation, two all be equipped with semicircle concave rail groove on the gyro wheel overcoat, two semicircle concave rail groove can amalgamate and form complete rail groove.

The number of the retainers is two, and the two retainers are symmetrically arranged.

The outer diameter end face of the bearing outer ring protrudes outwards to form a roller outer sleeve mounting convex seat, a plurality of threaded connection holes are formed in the side end face of the left side and the right side of the roller outer sleeve mounting convex seat, a circle of butt joint flange is connected to the inner diameter end face of the roller outer sleeve, a plurality of bolt mounting holes are formed in the butt joint flange, when the roller outer sleeve is mounted, the butt joint flange is attached to the side end face of the roller outer sleeve mounting convex seat, the bolt mounting holes are arranged in quantity and positions matched with the threaded connection holes, and the roller outer sleeve mounting convex seat are connected through hexagon socket head bolts.

The composite seal includes an outer seal and an inner seal that are installed in a staggered seal.

The outer diameter position of the outer sealing element is provided with a first sealing lip, the first sealing lip is abutted to the inner wall of the bearing outer ring, the inner diameter position of the outer sealing element is provided with a first clamping head, the outer wall of the bearing inner ring is provided with an outer sealing clamping groove, and the outer sealing element is clamped on the bearing inner ring through the first clamping head.

The outer diameter position of the inner sealing element is provided with a second clamping head, the inner wall of the bearing outer ring is provided with an inner sealing clamping groove, the inner sealing element is clamped on the bearing outer ring through the second clamping head, the inner diameter position of the inner sealing element is provided with a second sealing lip, and the second sealing lip is abutted to the outer wall of the bearing inner ring.

And the outer wall of the roller outer sleeve mounting convex seat is coated with a layer of wear early warning coating.

The utility model has the advantages that: the utility model discloses be equipped with the double pass and seal, can effectively prevent dust, leak protection, extension bearing life, the utility model discloses the design has detachable gyro wheel overcoat, and the separation can be realized to the wear-resisting part and the drive disk assembly of bearing, and under single trouble condition like this, change trouble part that can be selective need not the bearing whole and scrap for daily maintenance cost greatly reduced.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a schematic structural view of the roller housing of the present invention;

FIG. 3 is a schematic structural view of the inner and outer bearing ring portions of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 3.

In the figure: the bearing inner ring comprises a bearing inner ring 1, an outer sealing clamping groove 11, a bearing outer ring 2, a roller outer sleeve mounting convex seat 21, a threaded connecting hole 22, an inner sealing clamping groove 23, a wear early warning coating 24, a retainer 3, a spherical roller 4, a combined sealing piece 5, an outer sealing piece 51, a first sealing lip 511, a first clamping head 512, an inner sealing piece 52, a second clamping head 521, a second sealing lip 522, a roller outer sleeve 6, a semicircular arc concave rail groove 61, a butt flange 62, a bolt mounting hole 63 and an inner hexagonal bolt 64.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, wherein the descriptions of "left", "right", etc. in the present invention all refer to fig. 1 as the reference direction:

as shown in figures 1-4, a roller bearing comprises a bearing inner ring 1, a bearing outer ring 2 and a combined sealing element 5, wherein the bearing outer ring 2 is sleeved outside the bearing inner ring 1, a plurality of retainers 3 are arranged between the bearing inner ring 1 and the bearing outer ring 2, each retainer 3 is provided with a plurality of spherical rollers 4, the spherical rollers 4 play a role of bearing and transmission, the two combined sealing elements 5 are symmetrically arranged at the left side and the right side of the bearing, the combined sealing elements 5 can effectively prevent dust and leakage and prolong the service life of a bearing product, the outer side of the bearing outer ring 2 is sleeved with two roller jackets 6, the two roller jackets 6 are symmetrically arranged, the two roller jackets 6 are respectively provided with a semi-circular arc concave rail groove 61, the two semi-circular arc concave rail grooves 61 can be spliced to form a complete rail groove and are divided into the two roller jackets 6 for splicing, so as to solve the problems of installation and connection of the roller jackets 6, when roller bearing used as the slide rail motion wheel, rail groove and slide rail contact, therefore the wearing and tearing of rail groove position can be bigger, is one of the condemned leading reasons of bearing, and it is dead that spherical roller 4 blocks to have a main reason of scrapping, the utility model discloses a gyro wheel overcoat 6 adopts dismantled and assembled structure, like this, two main reasons of scrapping only appear under the condition of one, need not to scrap whole bearing, only need scrap corresponding part can, just so can the maintenance cost of greatly reduced bearing.

The 3 quantity of holder is two, and two 3 symmetrical installations of holder, that is to say this bearing design have two sets of symmetrical spherical roller 4 to bear and the transmission, can improve the axial bearing capacity and the operating stability of bearing like this (track operation has the off-track condition, if free a set of spherical roller 4, the easy condition that bears unbalance appears, spherical roller 4 is impaired easily, the condition of scrapping of transmission part appears easily, the life of bearing can be promoted greatly in above-mentioned improvement).

The outer diameter end face of the bearing outer ring 2 protrudes outwards to form a roller jacket installation convex seat 21, a plurality of threaded connection holes 22 are formed in the left end face and the right end face of the roller jacket installation convex seat 21, a circle of butt joint flange 62 is connected to the inner diameter end face of the roller jacket 6, a plurality of bolt installation holes 63 are formed in the butt joint flange 62, when the roller jacket 6 is installed, the butt joint flange 62 is attached to the side end face of the roller jacket installation convex seat 21, the bolt installation holes 63 are matched with the threaded connection holes 22 in the set quantity and set positions, the roller jacket 6 is connected with the roller jacket installation convex seat 21 through hexagon socket head bolts 64, and therefore the roller jacket 6 is convenient to disassemble and assemble and is convenient to maintain and replace.

The combined sealing element 5 comprises an outer sealing element 51 and an inner sealing element 52, the outer sealing element 51 and the inner sealing element 52 are installed in a staggered sealing mode, the outer sealing element 51 and the inner sealing element 52 form a staggered sealing effect, one side of the outer ring 2 of the closed bearing and the other side of the inner ring 1 of the closed bearing are sealed in two ways, a comprehensive sealing effect of the side face of the bearing is formed, external dust is prevented from entering, and internal lubricating grease is prevented from leaking.

The outer diameter position of the outer sealing element 51 is provided with a first sealing lip 511, the first sealing lip 511 abuts against the inner wall of the bearing outer ring 2, the first sealing lip 511 is used for sealing a gap on the side of the bearing outer ring 2, the inner diameter position of the outer sealing element 51 is provided with a first clamping head 512, the outer wall of the bearing inner ring 1 is provided with an outer sealing clamping groove 11, and the outer sealing element 51 is clamped on the bearing inner ring 1 through the first clamping head 512.

The outer diameter position of the inner sealing element 52 is provided with a second clamping head 521, the inner wall of the bearing outer ring 2 is provided with an inner sealing clamping groove 23, the inner sealing element 52 is clamped on the bearing outer ring 2 through the second clamping head 521, the inner diameter position of the inner sealing element 52 is provided with a second sealing lip 522, the second sealing lip 522 is abutted against the outer wall of the bearing inner ring 1, and the second sealing lip 522 is used for sealing a gap on the side of the bearing inner ring 1.

The outer wall of the roller jacket installation convex seat 21 is coated with the wear early warning coating 24, the wear early warning coating 24 is bright-colored, preferably red coating, after the semicircular arc concave rail groove 61 on the roller jacket 6 is worn through, the color of the wear early warning coating 24 can be in frictional contact with the sliding rail, and maintenance personnel can conveniently judge whether the roller jacket 6 needs to be scrapped or not through visual observation.

The utility model discloses a product structure is different in the like product on the market, has the outstanding advantage that the maintenance cost is low, has core competitiveness, is favorable to the enterprise to occupy segment market.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a roller bearing, includes bearing inner race (1), bearing outer lane (2), combination seal (5), its characterized in that: bearing inner race (2) suit is in the outside of bearing inner race (1), install a plurality of holder (3), every between bearing inner race (1) and bearing inner race (2) all be equipped with a plurality of spherical roller (4) on holder (3), two the left and right sides at the bearing is installed to combined sealing spare (5) symmetry, the outside cover of bearing inner race (2) is equipped with two gyro wheel overcoat (6), two gyro wheel overcoat (6) symmetry installation, two all be equipped with semicircle concave rail groove (61), two on gyro wheel overcoat (6) semicircle concave rail groove (61) can amalgamate and form complete rail groove.

2. A roller bearing according to claim 1, wherein: the number of the holding frames (3) is two, and the two holding frames (3) are symmetrically arranged.

3. A roller bearing according to claim 1, wherein: the outer diameter end face of the bearing outer ring (2) outwards protrudes to form a roller jacket installation convex seat (21), a plurality of threaded connection holes (22) are formed in the side end face of the left side and the right side of the roller jacket installation convex seat (21), a circle of butt joint flange (62) is connected to the inner diameter end face of the roller jacket (6), a plurality of bolt installation holes (63) are formed in the butt joint flange (62), the butt joint flange (62) is attached to the side end face of the roller jacket installation convex seat (21) during installation of the roller jacket (6), the bolt installation holes (63) are matched with the threaded connection holes (22) in the set quantity and set positions, and the roller jacket (6) and the roller jacket installation convex seat (21) are engaged through hexagon socket head bolts (64).

4. A roller bearing according to claim 1, wherein: the combined sealing element (5) comprises an outer sealing element (51) and an inner sealing element (52), and the outer sealing element (51) and the inner sealing element (52) are installed in a staggered sealing mode.

5. A roller bearing according to claim 4, wherein: the outer diameter position of outer seal spare (51) is equipped with first seal lip (511), first seal lip (511) and the inner wall of bearing inner race (2) are inconsistent, the inner diameter position of outer seal spare (51) is equipped with first clamping head (512), be equipped with outer sealing draw-in groove (11) on the outer wall of bearing inner race (1), outer seal spare (51) clamp on bearing inner race (1) through first clamping head (512).

6. The roller bearing of claim 4, wherein: the outer diameter position of interior sealing member (52) is equipped with second clamping head (521), be equipped with interior sealing draw-in groove (23) on the inner wall of bearing inner race (2), interior sealing member (52) clamp on bearing inner race (2) through second clamping head (521), the inner diameter position of interior sealing member (52) is equipped with second seal lip (522), second seal lip (522) and the outer wall of bearing inner race (1) are inconsistent.

7. A roller bearing according to claim 3, wherein: and the outer wall of the roller outer sleeve mounting convex seat (21) is coated with a layer of wear early warning coating (24).