CN211117134U

CN211117134U - Novel thrust self-aligning roller bearing with long service life and inner diameter of 280

Info

Publication number: CN211117134U
Application number: CN201921020010.6U
Authority: CN
Inventors: 文宇; 刘小辉; 钟飞; 张福洪
Original assignee: Chengdu Kehua Heavy Bearing Co ltd
Current assignee: Chengdu Kehua Jincheng Precision Machinery Manufacturing Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-07-28
Anticipated expiration: 2029-07-02

Abstract

A novel self-aligning thrust roller bearing with a long service life and an inner diameter 280. Having a race, a shaft ring, a row of Z rollers between the race and the ring, and supported by a cage, and a bush 5 at the lower inside diameter of the ring 2. In order to solve the problems of large impact load, high rotating speed, short service life of the bearing, long roller changing consumption time and the like of the existing bearing, the original rolling bearing limit design method of a company is adopted to provide the values of the external dimension and the structural elements of a model bearing. The requirements of users on the long service life of the bearing and the reduction of the use cost are met. Belongs to a large bearing. The bearing is used as a special bearing for a 6-roller mill intermediate roll or a working roll on a rolling mill in the steel and nonferrous metallurgy industries.

Description

Novel thrust self-aligning roller bearing with long service life and inner diameter of 280

The technical field is as follows: a thrust self-aligning roller bearing belongs to a large-scale bearing. It is mainly used as a special bearing for a middle roller or a working roller on a rolling mill in the steel and nonferrous metallurgy industries. Belongs to engineering element bearings (F16C) and metal rolling (B21B).

(II) background technology:

the thrust self-aligning roller bearing used for assembling the intermediate roller or the working roller of the 6-roller mill in the existing steel and nonferrous metallurgy industries is matched with the four-row tapered roller bearing for use and bears the axial load. The bearing has the advantages of bad working condition, high rotating speed and large borne impact load. It takes time to change the rolls. In order to reduce the use cost, users require long service life of the bearing.

Although the chinese utility model patent "long-life novel self-aligning thrust roller bearing" (Z L201720760219.0) discloses a novel self-aligning thrust roller bearing of long-life, it only discloses a model (29344) and can not satisfy more novel self-aligning thrust roller bearing's of long-life requirement completely.

(III) the invention content: the utility model provides a novel thrust self-aligning roller bearing of long-life internal diameter 280, its purpose is exactly for the user provides long-life thrust self-aligning roller bearing. The overall dimension and the structural factor value of the novel type of self-aligning thrust roller bearing are provided. The technical scheme is as follows:

the novel self-aligning thrust roller bearing with the long-service-life inner diameter 280 is provided with a seat ring 1 and a shaft ring 2, a row of Z rollers 4 is arranged between the seat ring and the shaft ring and is supported by a retainer 3, and a bush 5 is arranged at the inner diameter part below the shaft ring 2, and is characterized in that the inner diameter D of a bearing of a model bearing, the outer diameter D of the bearing, the height H of the bearing, the diameter Dw of the bearing roller, the length L of the roller and the number Z of each row of rollers are within the numerical range of the sequence number 1 in the table 1:

TABLE 1

In order to obtain the best effect of the self-aligning thrust roller bearing, the values of the bearing inner diameter D, the bearing outer diameter D, the bearing height H, the bearing roller diameter Dw, the roller length L and the number Z of each row of rollers of the bearing with the model number in table 1 are respectively the numerical values of the serial number 1 in table 2.

TABLE 2

The utility model discloses beneficial effect: this novel thrust self-aligning roller bearing of long-life internal diameter 280 adopts the design of "antifriction bearing limit design method" that the company originally created, has confirmed the structural element numerical value of above-mentioned type thrust self-aligning roller bearing, and this design has realized satisfying under design strength and the technological process requirement condition, and the roller diameter of design is the biggest, and length is the longest, and the rated dynamic load value of bearing is the highest, and the calculation life-span of bearing is the longest, has satisfied user's long-life requirement, has reduced user's use cost.

(IV) description of the drawings

FIG. 1 is a front cross-sectional view of a novel self-aligning thrust roller bearing with a long life inner diameter 280.

Figure 2 roller 4 shape diagram

(V) detailed description of the preferred embodiments

Table 2 shows a new self-aligning thrust roller bearing with a long life inner diameter 280 of number 1.

Referring to fig. 1, the thrust self-aligning structural element comprises a race 1 and an axle ring 2, wherein a row of Z rollers 4 is arranged between the race and the axle ring and supported by a retainer 3, a bush 5 is arranged at the lower inner diameter of the axle ring 2, the outer dimensions of a bearing are that the inner diameter D of the bearing is 280mm, the outer diameter D of the bearing is 520mm, the height H of the bearing is 145mm according to the serial number 1 in the table 2 and the figure 1, the thrust self-aligning structural element determined by the limit design method of a rolling bearing is that the serial number 1 in the table 2 and the figure 2 are used, the diameter Dw of the roller is 73.587mm, the length of the roller is L mm, and the number Z of the rollers in each row in the circumferential direction.

Claims

1. The novel self-aligning thrust roller bearing with the long-service-life inner diameter 280 is provided with a seat ring (1) and a shaft ring (2), a row of Z rollers (4) is arranged between the seat ring and the shaft ring and supported by a retainer (3), and a bush (5) is arranged at the lower inner diameter of the shaft ring (2), and is characterized in that the inner diameter D of the bearing, the outer diameter D of the bearing, the height H of the bearing, the diameter Dw of the bearing rollers, the length L of the rollers and the quantity Z of the rollers in each row are within the numerical range of the sequence number 1 in a table 1:

TABLE 1

2. The novel self-aligning thrust roller bearing with the long service life and the inner diameter 280 as claimed in claim 1 is characterized in that the values of the inner diameter D of the bearing, the outer diameter D of the bearing, the height H of the bearing, the diameter Dw of the bearing rollers, the length L of the rollers and the number Z of the rollers in each row are respectively the numerical values of the sequence number 1 in the table 2:

TABLE 2