CN219082090U

CN219082090U - Heavy-load four-row cylindrical bearing

Info

Publication number: CN219082090U
Application number: CN202223534741.7U
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: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-05-26
Anticipated expiration: 2033-04-13

Abstract

The utility model discloses a heavy-duty four-row cylindrical bearing, which comprises an outer ring and an inner ring, wherein a retainer is arranged between the outer ring and the inner ring, rollers are uniformly arranged on the retainer, outer ring flanges are fixedly arranged at two ends of the outer ring through rivets, and an oil storage mechanism is arranged on the inner side surface of the outer ring; meanwhile, the oil storage mechanism is arranged on the inner side of the outer ring, so that lubricating oil can be stored more uniformly in the inner side of the outer ring, and the problems that the utilization rate is low and frequent oil injection and supplement are needed due to the fact that most of the lubricating oil is accumulated on the lower side under the gravity and the extrusion of the inner ring, the outer ring and the rollers are avoided.

Description

Heavy-load four-row cylindrical bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a heavy-load four-row cylindrical bearing.

Background

The four rows of cylindrical rollers and the roller path are line contact bearings, so that the load capacity is high, and the radial load is mainly born.

At present, the conventional bearing structure for the back-up rolls of the rolling mill is four rows of cylindrical roller bearings.

The insufficient bearing capacity of the bearing is often one of the main reasons for early failure of the bearing, and how to improve the rated load of the bearing of the rolling mill is the most effective way to improve the service life of the bearing due to the larger working load of the bearing supporting roller of the rolling mill. The traditional FCDP four-row cylindrical bearing is characterized in that an outer ring is provided with an outer flange and a middle flange, so that the problems of short effective length and insufficient bearing capacity of a raceway are caused, the service life of the bearing is short, and bearing parts are required to be replaced frequently; in addition, although lubricating oil can be stored in the pockets of the four-row cylindrical bearing retainer, because the axes of the four-row cylindrical bearing retainer are parallel to the horizontal line during operation, the lubricating oil is easy to accumulate at the lower side under the action of gravity and the extrusion of the inner ring, the outer ring and the rollers, so that the utilization rate of the lubricating oil is low, and frequent oiling is needed.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides the heavy-load four-column cylindrical bearing, wherein the outer ring flanges are only arranged at the two ends of the outer ring, the middle flange is omitted, the effective length of a roller path can be increased, the bearing capacity of the bearing is improved, the service life of the bearing is further prolonged, the frequency of replacing bearing parts is reduced, and the problems in the background art 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 heavy load four-row cylindrical bearing, includes outer lane and inner circle, is provided with the holder between outer lane and the inner circle, evenly is provided with the roller on the holder, the both ends of outer lane are provided with outer lane flange through rivet fastening, the inboard surface of outer lane is provided with oil storage mechanism.

As a preferable technical scheme of the utility model, the oil storage mechanism comprises a plurality of oil storage tanks which are uniformly arranged on the inner side surface of the outer ring, and absorbent cotton is arranged in the oil storage tanks.

As a preferable technical scheme of the utility model, a ball retainer is fixedly arranged on the inner side surface of the oil storage tank, and balls are arranged on the ball retainer.

As a preferable technical scheme of the utility model, the cross section shapes of the oil storage tank and the absorbent cotton are T-shaped.

Compared with the prior art, the utility model has the beneficial effects that: only the outer ring flanges are arranged at the two ends of the outer ring, the middle flange is omitted, the effective length of the rollaway nest can be increased, the bearing capacity of the bearing is improved, the service life of the bearing is further prolonged, and the frequency of replacing bearing parts is reduced; meanwhile, the oil storage mechanism is arranged on the inner side of the outer ring, so that lubricating oil can be stored more uniformly in the inner side of the outer ring, and the problems that the utilization rate is low and frequent oil injection and supplement are needed due to the fact that most of the lubricating oil is accumulated on the lower side under the gravity and the extrusion of the inner ring, the outer ring and the rollers are avoided.

Drawings

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

FIG. 2 is a schematic view of the structure of the present utility model with the outer ring flange removed;

FIG. 3 is a schematic view of the outer ring of the present utility model;

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

fig. 5 is an enlarged view of the structure of fig. 4 at a in accordance with the present utility model.

In the figure: 1 outer ring, 2 inner ring, 3 outer ring flanges, 4 rivets, 5 retainers, 6 rollers, 7 oil storage tanks, 8 absorbent cotton, 9 ball retainers and 10 balls.

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. 1-5, the present utility model provides a technical solution: the utility model provides a four cylindrical bearings of heavy load, includes outer lane 1 and inner circle 2, is provided with cage 5 between outer lane 1 and the inner circle 2, evenly is provided with roller 6 on the cage 5, and cage 5 adopts screw connection's brass entity to hold, can store lubricating oil in the pocket, has cancelled the well flange on outer lane 1, only is in the both ends of outer lane 1 pass through rivet 4 fixed outer lane flange 3 that sets up, can increase raceway effective length, promotes bearing capacity, and then extension bearing life has reduced the frequency of changing the bearing part, simultaneously, through this improvement, can be in limited installation space, especially under the circumstances that axial installation size is smaller, effectively increase roller size, improve bearing load, avoid the bearing to become invalid because of the load is not enough, is applicable to low-speed, heavy load operating mode.

The oil storage mechanism is arranged on the inner side surface of the outer ring 1, so that lubricating oil can be stored, the lubricating oil can be stored more uniformly on the inner side of the outer ring, and the problems that the utilization rate is low and frequent oil injection and supplement are needed due to the fact that most of the lubricating oil is accumulated on the lower side under the gravity and the extrusion of the inner ring, the outer ring and the rollers are avoided.

Preferably, the oil storage mechanism comprises a plurality of oil storage tanks 7 which are uniformly arranged on the inner side surface of the outer ring 1, absorbent cotton 8 is arranged in the oil storage tanks 7, after the inner side of the outer ring 1 is filled with oil, lubricating oil enters between the rollers 6, the rollers 6 squeeze the lubricating oil into the oil storage tanks 7 along with the rotation of the rollers 6, the absorbent cotton 8 adsorbs and stores the lubricating oil, the storage capacity of the lubricating oil is improved, the frequency of stopping oiling is reduced, and the working efficiency is ensured.

Further preferably, the cross-sectional shapes of the oil storage tank 7 and the absorbent cotton 8 are T-shaped, and the absorbent cotton 8 is more firm and not easy to fall off when being clamped in the oil storage tank 7.

Specifically, the absorbent cotton 8 may be pressed into the oil reservoir 7 and fixed by gluing or the like during installation.

Preferably, the ball retainer 9 is fixedly mounted on the inner side surface of the oil storage tank 7, and balls 10 are arranged on the ball retainer 9, so that the number of the balls 10 is not less than five, and the contact area between the balls and the rollers is increased, thereby improving the efficiency of lubricating oil transmission.

The ball holder 9 is rectangular, and is arranged on the outer side of the inner side surface of the oil storage tank 7, one end of a ball 10 on the ball holder 9 is extruded on absorbent cotton, the other end of the ball is in contact connection with the roller 6, the roller drives the ball 10 to rotate when rotating, and the ball 10 rotates to transfer lubricating oil absorbed in the absorbent cotton 8 to the roller, so that the replenishment of the lubricating oil on the roller is completed.

When the lubricating oil on the roller is reduced, the friction between the rolling balls and the rolling balls can be increased, so that the rolling balls are more easily driven to rotate by the roller, the lubricating oil adsorbed in the absorbent cotton 8 is transferred to the roller, the lubricating oil quantity on the roller is increased, the friction between the rolling balls and the roller can be reduced after the lubricating oil quantity is increased, the rolling balls are not easy to rotate, the lubricating oil storage time is longer, and the oiling frequency is further reduced.

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 four cylindrical bearings of heavy load, includes outer lane (1) and inner circle (2), is provided with cage (5) between outer lane (1) and inner circle (2), evenly is provided with roller (6), its characterized in that on cage (5): the two ends of the outer ring (1) are fixedly provided with outer ring flanges (3) through rivets (4), and the inner side surface of the outer ring (1) is provided with an oil storage mechanism.

2. A heavy duty four column cylindrical bearing according to claim 1, wherein: the oil storage mechanism comprises a plurality of oil storage tanks (7) which are uniformly arranged on the inner side surface of the outer ring (1), and absorbent cotton (8) is arranged in the oil storage tanks (7).

3. A heavy duty four column cylindrical bearing according to claim 2, wherein: the inner side surface of the oil storage tank (7) is fixedly provided with a ball retainer (9), and the ball retainer (9) is provided with balls (10).

4. A heavy duty four column cylindrical bearing according to claim 2, wherein: the cross sections of the oil storage tank (7) and the absorbent cotton (8) are T-shaped.

5. A heavy duty four column cylindrical bearing according to claim 3, wherein: the number of the balls (10) is not less than five, and the balls (10) not less than five are uniformly arranged on the ball retainer (9).