CN219139627U

CN219139627U - Novel six-row cylindrical roller bearing

Info

Publication number: CN219139627U
Application number: CN202223534742.1U
Authority: CN
Inventors: 袁星辉; 刘世珍; 李小会; 何延昌; 何召集
Original assignee: Luoyang Huigong Bearing Technology Co ltd
Current assignee: Luoyang Huigong Bearing Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-06
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a novel six-row cylindrical roller bearing, which comprises an inner ring, an outer ring and a retainer arranged between the inner ring and the outer ring, wherein the outer ring is arranged without a middle baffle, cylindrical rollers are arranged in the retainer, six rows of cylindrical rollers are arranged, two outer rings are arranged, and each three rows of cylindrical rollers are in a group. This novel six column cylindrical roller bearing, on traditional FCDP class four column cylindrical roller bearing's basis, cancel flange in the outer lane, with increase raceway effective length, thereby increase cylindrical roller to six by four columns, promote bearing capacity, simultaneously through two outer lanes that set up, three equal length cylindrical rollers of packing into side by side in every outer lane, under the prerequisite of guaranteeing cylindrical roller effective length as long as possible, reduce the range length of cylindrical roller in every group outer lane, prevent the roller busbar edge stress that arouses because of roller footpath amount of deflection is too big, in addition, this bearing is convenient for the injection of lubricating oil.

Description

Novel six-row cylindrical roller bearing

Technical Field

The utility model relates to the technical field of roller bearings, in particular to a novel six-row cylindrical roller bearing.

Background

At present, the conventional bearing structure for the backup roll of the rolling mill is four rows of cylindrical roller bearings, in working occasions with very large rolling force and lower rotating speed, the bearing capacity is insufficient, which is often one of the main reasons of early failure of the bearings, and the backup roll of the rolling mill bearing has certain deflection due to extremely large working load, so that stress concentration occurs at the two ends of a bus of the bearing roller easily, and early failure is caused, thereby reducing the service life and reliability of the bearing.

In addition, when adding lubricating oil, the common roller bearing needs to be disassembled, so that the oil injection is inconvenient, oil injection holes are formed in part of the roller bearing, but the oil injection holes are small in size, and when a plurality of rows of rollers are arranged in the inner ring, the lubricating oil is inconvenient to spread on the surfaces of each row of rollers, so that the uniform injection of the lubricating oil in the roller bearing is difficult.

Disclosure of Invention

The utility model aims to overcome the prior art, and provides a novel six-row cylindrical roller bearing, on the basis of the traditional FCDP four-row cylindrical bearing, the flanges in the outer rings are omitted so as to increase the effective length of the roller path, thereby increasing the bearing capacity of the bearing from four rows to six rows, simultaneously, three rows of equal-length cylindrical rollers are parallelly arranged in each outer ring through two outer rings, and on the premise of ensuring the effective length of the cylindrical rollers to be as long as possible, the arrangement length of the cylindrical rollers in each group of outer rings is reduced, the overlarge edge stress of a roller bus caused by the deflection of the roller diameter is prevented, and in addition, the bearing is convenient for injecting lubricating oil, and the problem in the background technology can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel six column cylindrical roller bearing, includes inner circle, outer lane and sets up the keeper between inner circle and outer lane, the outer lane adopts there is not well flange setting, install cylindrical roller in the keeper, and cylindrical roller is provided with six columns, the outer lane is provided with two, every three columns of cylindrical roller is a set of to fix a position every group of cylindrical roller through the keeper, all be provided with a set of cylindrical roller in every outer lane.

The outer side of the outer ring is provided with an oil filling hole, the inner side of the outer ring is provided with a diversion trench near the oil filling hole, and the diversion trench is communicated with the oil filling hole.

In a preferred technical scheme of the utility model, the side surface of the outer ring is not provided with a side flange, a side retainer ring is arranged at the position of the side surface of the outer ring, which is not provided with the side flange, the outer side diameter of the side retainer ring is the same as the outer side diameter of the outer ring, and the inner side diameter of the side retainer ring is smaller than the inner side diameter of the outer ring.

As a preferable technical scheme of the utility model, a detachable sealing column head is arranged in the oil filling hole, and the outer side of the sealing column head is flat with the outer side of the outer ring.

As a preferable technical scheme of the utility model, chamfer angles are arranged on two sides of the outer part of the inner ring.

As a preferred embodiment of the present utility model, the retainer is composed of a retainer and a retainer cap, and the retainer cap is riveted to the retainer by means of rivets.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the novel six-row cylindrical roller bearing, on the basis of a traditional FCDP four-row cylindrical bearing, the flanges in the outer rings are omitted, so that the effective length of a roller path is increased, the bearing capacity of the bearing is improved by increasing the number of the cylindrical rollers from four rows to six, meanwhile, three rows of cylindrical rollers with equal length are parallelly arranged in each outer ring through two outer rings, the effective length of the cylindrical rollers is ensured to be as long as possible, the arrangement length of the cylindrical rollers in each outer ring is reduced, and the overlarge stress on the edges of roller bus bars caused by deflection of roller diameters is prevented.

2. According to the novel six-row cylindrical roller bearing, lubricating oil is injected into the bearing through the oil injection holes, the injected lubricating oil flows into the guide grooves, the oil inlet area of the oil injection holes is increased by the arrangement of the guide grooves, the lubricating oil is coated on the surfaces of each row of cylindrical rollers in the six rows of cylindrical rollers, the lubricating oil can be added without disassembling the bearing, and the lubricating oil can be uniformly injected into the bearing through the oil injection holes by the arrangement of the guide grooves.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the outer race of the present utility model;

FIG. 3 is a schematic view of the structure of the holder of the present utility model;

FIG. 4 is a schematic cross-sectional view of the present utility model;

FIG. 5 is an enlarged schematic view of the structure shown at A in FIG. 4;

fig. 6 is an enlarged schematic view of the structure at B in fig. 4.

In the figure: 1 inner ring, 2 outer ring, 21 side retainer ring, 3 retainer, 31 retainer, 32 retainer cover, 33 rivet, 4 cylindrical roller, 5 oil filler hole, 6 guiding gutter, 7 sealing column cap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a novel six row cylindrical roller bearing, including inner circle 1, outer lane 2 and the keeper 3 of setting between inner circle 1 and outer lane 2, keeper 3 is preferably brass entity keeper, outer lane 2 adopts there is not well flange setting to increase the interior raceway length of outer lane 2, install cylindrical roller 4 in the keeper 3, keeper 3 is used for spacing of cylindrical roller 4, prevent that cylindrical roller 4 from taking place the dislocation in the bearing use, avoid bump between the adjacent cylindrical roller 4 simultaneously, wearing and tearing, and cylindrical roller 4 is provided with six rows, six row cylindrical roller 4 length of setting are the same, the cancellation of flange has increased raceway length in the outer lane, thereby be convenient for six row cylindrical roller 4's setting, compare in traditional four row roller bearing, this bearing has higher bearing capacity.

The outer ring 2 is provided with two, every three rows of cylindrical rollers 4 are a set of to fix a position every group of cylindrical rollers 4 through keeping ware 3, all be provided with a set of cylindrical rollers 4 in every outer ring 2, divide into two with six rows of cylindrical rollers 4, under the prerequisite of guaranteeing that cylindrical rollers effective length is as long as possible, reduce the range length of the roller in every group outer ring 2, prevent the too big roller busbar edge stress that causes because of roller footpath deflection.

The oil filler hole 5 has been seted up in the outer lane 2 outside, the guiding gutter 6 has been seted up to the position department that is close to oil filler hole 5 in the outer lane 2 inboard, and guiding gutter 6 and oil filler hole 5 intercommunication, inside injecting lubricating oil into the bearing through oil filler hole 5, the lubricating oil of injection flows to guiding gutter 6 in, the oil feed area of oil filler hole 5 has been increased in the setting of guiding gutter 6, the lubricating oil has all been paintd on the surface of each row of cylindrical roller 4 in guaranteeing six rows of cylindrical rollers 4, need not to dismantle the bearing and can realize the interpolation of lubricating oil, the setting of guiding gutter 6 is convenient for evenly inject lubricating oil into the bearing inside through oil filler hole 5.

The side of the outer ring 2 is not provided with a side flange, the side flange 21 is installed at the position of the side of the outer ring 2, the side flange 21 is convenient for the disassembly and assembly of the retainer 3, the outer side diameter of the side flange 21 is the same as the outer side diameter of the outer ring 2, the inner side diameter of the side flange 21 is smaller than the inner side diameter of the outer ring 2, the outer side of the outer ring 2 is in flat arrangement, the installation and the use of the bearing are convenient, and the inner side of the side flange 21 is more than the inner side of the outer ring 2 to form a rollaway.

The detachable sealing column head 7 is arranged in the oil filling hole 5, lubricating oil in the bearing is prevented from flowing backwards to the outside through the oil filling hole 5 by the sealing column head 7, the sealing column head 7 can be arranged in the oil filling hole 5 through threads, the outer side of the sealing column head 7 is leveled with the outer side of the outer ring 2, and the arrangement of the sealing column head 7 does not affect the use of the bearing.

Both sides outside the inner ring 1 are provided with chamfers, collision between the inner ring 1 and the cylindrical roller 4 is avoided when the inner ring 1 is connected with the retainer 3 in a mounting way, and the chamfering is convenient for mounting the inner ring 1.

The retainer 3 is composed of a retainer 31 and a retainer cap 32, and the retainer cap 32 is riveted to the retainer 31 by rivets 33, facilitating the installation of the cylindrical roller 4 in the retainer 3.

This novel six column cylindrical roller bearing, on traditional FCDP class four column cylindrical roller bearing's basis, cancel flange in the outer lane, with increase raceway effective length, thereby increase cylindrical roller to six by four columns, promote bearing capacity, simultaneously through two outer lanes that set up, three equal length cylindrical rollers of packing into side by side in every outer lane, under the prerequisite of guaranteeing cylindrical roller effective length as long as possible, reduce the range length of cylindrical roller in every group outer lane, prevent the roller busbar edge stress that arouses because of roller footpath amount of deflection is too big, in addition, this bearing is convenient for the injection of lubricating oil.

The non-disclosed parts of the utility model are all prior art, and the specific structure, materials and working principle thereof are not described in detail. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel six row cylindrical roller bearing, includes inner circle (1), outer lane (2) and sets up retainer (3) between inner circle (1) and outer lane (2), its characterized in that: the outer ring (2) is arranged without a middle-grade edge, cylindrical rollers (4) are arranged in the retainer (3), six rows of cylindrical rollers (4) are arranged, two outer rings (2) are arranged, each three rows of cylindrical rollers (4) are in one group, each group of cylindrical rollers (4) is positioned through the retainer (3), and each outer ring (2) is internally provided with one group of cylindrical rollers (4);

the outer ring (2) is provided with an oil filling hole (5), the inner side of the outer ring (2) is provided with a diversion trench (6) at a position close to the oil filling hole (5), and the diversion trench (6) is communicated with the oil filling hole (5).

2. The novel six-row cylindrical roller bearing according to claim 1, wherein: the side of the outer ring (2) is not provided with a side flange, a side baffle ring (21) is arranged at the position of the side of the outer ring (2) where the side of the outer ring is not provided with the side flange, the outer side diameter of the side baffle ring (21) is the same as the outer side diameter of the outer ring (2), and the inner side diameter of the side baffle ring (21) is smaller than the inner side diameter of the outer ring (2).

3. The novel six-row cylindrical roller bearing according to claim 1, wherein: a detachable sealing column head (7) is arranged in the oil filling hole (5), and the outer side of the sealing column head (7) is leveled with the outer side of the outer ring (2).

4. The novel six-row cylindrical roller bearing according to claim 1, wherein: both sides of the outer part of the inner ring (1) are provided with chamfers.

5. The novel six-row cylindrical roller bearing according to claim 1, wherein: the retainer (3) is composed of a retainer (31) and a retainer cover (32), and the retainer cover (32) is riveted to the retainer (31) by rivets (33).