CN212202851U

CN212202851U - Long cylindrical roller bearing with good axial impact resistance

Info

Publication number: CN212202851U
Application number: CN202020929059.XU
Authority: CN
Inventors: 陈信书; 何兴辉; 顾小娟
Original assignee: Changzhou Wujin Yongda Mechanical Bearing Co ltd
Current assignee: Changzhou Wujin Yongda Mechanical Bearing Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2020-12-22
Anticipated expiration: 2030-05-27

Abstract

The utility model relates to a long cylindrical roller bearing with good anti axial shock performance, including bearing inner race, the bearing inner race, long cylindrical roller and roller holder, the axial both sides of the raceway surface of bearing inner race are formed with the roller flange, be provided with sealing ring between the bearing inner race axial side and the bearing outer race roller flange of homonymy, sealing ring and bearing inner race's axial side fixed connection, sealing ring and bearing inner race's roller flange clearance fit, be provided with the spring coil between the axial terminal surface of roller holder in sealing ring's the inboard anchor ring of axial and raceway, one side of spring coil is fixed to be embedded in the prefabricated annular of the inboard anchor ring of axial of sealing ring, the opposite side of spring coil and roller holder's axial terminal surface clearance fit. The utility model discloses make present long cylindrical roller bearing realize good anti axial shock load, the antidetonation performance effect of axial, make the quality and the life of this type of bearing product obtain showing and promote.

Description

Long cylindrical roller bearing with good axial impact resistance

Technical Field

The utility model belongs to the technical field of the bearing manufacturing technology and specifically relates to a long cylindrical roller bearing with good anti axial shock performance is related to.

Background

The long cylindrical roller bearing is a centripetal rolling bearing with long cylindrical rollers as rolling bodies, the cylindrical rollers are in line contact with the roller paths, the radial load capacity is high, and the long cylindrical roller bearing is suitable for bearing heavy loads and impact loads and is also suitable for high-speed rotation. However, in many applications, it is necessary for the cylindrical roller bearing to be able to withstand both large radial loads and impacts and also a certain axial impact load and vibration. The existing long cylindrical roller bearing is relatively deficient in the aspects of axial impact load resistance and axial shock resistance, and the use requirement is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the long cylindrical roller bearing with good axial impact resistance is provided to solve the problems in the background art and meet the use requirements.

The utility model provides a technical scheme that its technical problem adopted is: a long cylindrical roller bearing with good axial impact resistance comprises a bearing outer ring, a bearing inner ring, long cylindrical rollers and a roller retainer, wherein the long cylindrical rollers are embedded in roller pockets of the roller retainer and are assembled on a roller path formed by corresponding roller path surfaces of the bearing outer ring and the bearing inner ring together with the roller retainer, roller flanges are formed on two axial sides of the roller path surface of the bearing outer ring, a sealing retainer ring is arranged between the roller flange of the bearing outer ring and the axial side surface of the bearing inner ring at the same side, the sealing retainer ring is fixedly connected with the axial side surface of the bearing inner ring, the sealing retainer ring is in clearance fit with the roller flange of the bearing outer ring, a spring ring is arranged between the axial inner ring surface of the sealing retainer ring and the axial end surface of the roller retainer in the raceway, one side of the spring ring is fixedly embedded in a prefabricated ring groove of the axial inner ring surface of the sealing retainer ring, and the other side of the spring ring is in clearance fit with the axial end surface of the roller retainer.

The spring ring is made of a material which is wear-resistant, high-temperature resistant, corrosion-resistant and has good elasticity and strength. When the bearing inner ring is not subjected to axial impact load or vibration, the spring ring is not in contact with the axial end face of the roller retainer, and no extra friction is generated. When the bearing inner ring is subjected to axial impact load or vibration, the spring ring can play a good role in buffering and damping, so that the bearing is protected, and the bearing inner ring can also perform certain axial displacement to reduce impact damage of external force to a bearing structure. In addition, the existence of the sealing retainer ring also plays a good sealing role for the bearing, and the sealing retainer ring can effectively block external dust and impurities and prevent the external dust and impurities from entering the inner cavity of the bearing.

In order to further improve the sealing performance of the bearing and perfectly protect the inner cavity of the bearing, a sealing ring embedded in a prefabricated groove of the sealing retainer ring is arranged between the sealing retainer ring and a roller flange of the bearing outer ring.

Further, the sealing ring is a spring sealing ring, which is commonly used in the market, and is a sealing ring formed by combining a sealing ring body and a spring. And a spring sealing ring is adopted, so that the sealing effect is better.

The utility model has the advantages that: through reasonable, ingenious and simple design, the existing long cylindrical roller bearing realizes good performance effects of resisting axial impact load and axial shock resistance, the quality and the service life of the bearing product are obviously improved, and the use requirement is met.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic sectional structure diagram of the present invention.

In the figure: 1. bearing outer ring 2, bearing inner ring 3, long cylindrical roller 4, roller retainer 5, blocking ring 6, spring ring 7 and sealing ring

Detailed Description

A long cylindrical roller bearing with good axial impact resistance is disclosed, as shown in figure 1, comprising a bearing outer ring 1, a bearing inner ring 2, long cylindrical rollers 3 and a roller retainer 4, wherein the long cylindrical rollers 3 are embedded in roller pockets of the roller retainer 4 and are assembled with the roller retainer 4 on a raceway formed by corresponding raceway surfaces of the bearing outer ring 1 and the bearing inner ring 2, roller flanges are formed on two axial sides of the raceway surface of the bearing outer ring 1, a seal retainer ring 5 is arranged between the roller flange of the bearing outer ring 1 and the axial side surface of the bearing inner ring 2 on the same side, the seal retainer ring 5 is fixedly connected with the axial side surface of the bearing inner ring 2, the seal retainer ring 5 is in clearance fit with the roller flange of the bearing outer ring 1, a spring ring 6 is arranged between the axial inner side ring surface of the seal retainer ring 5 and the axial end surface of the roller retainer 4 in the raceway, one side of the spring ring 6 is fixedly embedded in a prefabricated ring groove of the axial inner side ring surface of the seal retainer, the other side of the spring ring 6 is in clearance fit with the axial end face of the roller cage 4.

The spring ring 6 is made of a material which is wear-resistant, high-temperature resistant, corrosion-resistant and has good elasticity and strength. When the bearing inner ring 2 is not subjected to axial impact load or vibration, the spring ring 6 is not in contact with the axial end face of the roller cage 4, and no additional friction is generated. When the bearing inner ring 2 is subjected to axial impact load or vibration, the spring ring 6 has good buffering and shock absorption effects, so that the bearing is protected, and the bearing inner ring 2 can also perform certain axial displacement to reduce impact damage of external force to a bearing structure. In addition, the existence of the sealing retainer ring 5 also plays a good sealing role for the bearing, and the sealing retainer ring 5 can effectively block external dust and impurities and prevent the external dust and impurities from entering the inner cavity of the bearing.

A sealing ring 7 embedded in a prefabricated groove of the sealing retainer ring 5 is arranged between the sealing retainer ring 5 and a roller flange of the bearing outer ring 1 so as to further improve the sealing performance of the bearing and more perfectly protect the inner cavity of the bearing; the adopted sealing ring 7 is a spring sealing ring, so that the sealing effect is better.

The above embodiments are only used for explaining the present invention, and not for limiting the protection of the present invention, and any insubstantial changes made on the basis of the essential schemes of the present invention should fall within the protection scope of the present invention.

Claims

1. The utility model provides a long cylinder roller bearing with good anti axial shock performance, including bearing inner race (1), bearing inner race (2), long cylindrical roller (3) and roller holder (4), long cylindrical roller (3) are inlayed in the roller pocket of roller holder (4) and are assembled in the raceway that is formed by the corresponding raceway surface of bearing inner race (2) with bearing outer race (1) together with roller holder (4), the axial both sides of the raceway surface of bearing inner race (1) are formed with roller flange, its characterized in that: a sealing retainer ring (5) is arranged between the roller flange of the bearing outer ring (1) and the axial side face of the bearing inner ring (2) at the same side, the sealing retainer ring (5) is fixedly connected with the axial side face of the bearing inner ring (2), the sealing retainer ring (5) is in clearance fit with the roller flange of the bearing outer ring (1), a spring ring (6) is arranged between the axial inner side ring face of the sealing retainer ring (5) and the axial end face of the roller retainer (4) in the roller path, one side of the spring ring (6) is fixedly embedded in a prefabricated ring groove of the axial inner side ring face of the sealing retainer ring (5), and the other side of the spring ring (6) is in clearance fit with the axial end face of the roller retainer (.

2. The long cylindrical roller bearing with good axial impact resistance according to claim 1, characterized in that: and a sealing ring (7) embedded in a prefabricated groove of the sealing retainer ring (5) is arranged between the sealing retainer ring (5) and the roller flange of the bearing outer ring (1).

3. The long cylindrical roller bearing with good axial impact resistance according to claim 2, characterized in that: the sealing ring (7) is a spring sealing ring.