CN216922853U

CN216922853U - Double-row cylindrical roller bearing for direct-drive wind power generation gearbox

Info

Publication number: CN216922853U
Application number: CN202121005348.1U
Authority: CN
Inventors: 伊马诺.洛佩兹.德.拉鲁奇.布拉斯科; 李旭辉; 袁伟; 王缓缓; 余华
Original assignee: Fersa Bearings Jiaxing Co ltd
Current assignee: Fersa Bearings Jiaxing Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2022-07-08
Anticipated expiration: 2031-05-12

Abstract

The utility model relates to the technical field of roller bearings and discloses a double-row cylindrical roller bearing for a direct-drive wind power generation gearbox. According to the utility model, through the V-shaped arrangement of the outer ring of the bearing inner ring and the V-shaped arrangement of the inner ring of the bearing outer ring, the rollers (33) at two sides are inclined towards the center, when the bearing is subjected to axial force, the bearing is not easy to separate and disintegrate due to the matching of the bearing inner ring and the bearing outer ring, the rollers are not easy to separate, the service life of the bearing is prolonged, higher axial force can be borne, the application range of the bearing is enlarged, and the bearing is convenient to popularize.

Description

Double-row cylindrical roller bearing for direct-drive wind power generation gearbox

Technical Field

The utility model relates to the technical field of roller bearings, in particular to a double-row cylindrical roller bearing for a direct-drive wind power generation gearbox.

Background

The cylindrical roller bearing has the advantages that the cylindrical roller and the raceway are in line contact, the load capacity is high, the cylindrical roller bearing mainly bears radial load, the rigidity to the radial load is high, the cylindrical roller bearing is mainly used for various industries, when the conventional cylindrical roller bearing bears a certain axial force, one end of a cylinder is abutted against a bearing sleeve or a sealing cover and is in sliding friction, the inner ring and the outer ring of the bearing are separated, the load rigidity of the bearing for bearing the axial force is low, the application range is small, and the service life is short.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that when a cylindrical roller bearing in the prior art bears a certain axial force, one end of a cylinder is abutted against a bearing sleeve or a sealing cover and is in sliding friction, and the inner ring and the outer ring of the bearing are separated, the bearing bears the axial force, has low load rigidity, a small application range and a short service life, and provides the double-row cylindrical roller bearing for the direct-drive wind power generation gearbox.

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

a double-row cylindrical roller bearing for a direct-drive wind power generation gearbox comprises a bearing inner ring and a bearing outer ring, wherein a roller structure is connected between the bearing inner ring and the bearing outer ring;

the roller structure includes retainer ring, a plurality of retaining block and a plurality of roller, retainer ring fixed connection is in the bearing inner race one side of being close to the bearing inner race, the outer lane of bearing inner race is the V type setting, the inner circle of bearing inner race is the V type setting, a plurality of the even equidistance fixed connection of retaining block is in the both sides of retaining ring, a plurality of the roller sets up respectively between two adjacent retaining rings, and a plurality of the roller sets up between bearing inner race and bearing inner race, the roller is the slope setting.

Preferably, the outer ring of the bearing inner ring is fixedly connected with a sealing cover, and the sealing cover is arranged annularly.

Preferably, one side of each of the plurality of rollers, which is close to the retaining ring, is fixedly connected with a first rolling block, the first rolling blocks are arranged in a semicircular manner, a first rolling groove is formed in the position, corresponding to the first rolling block, of the retaining ring, and the first rolling blocks are respectively connected in the corresponding first rolling grooves in a sliding manner.

Preferably, one end of each of the plurality of rollers close to the sealing cover is fixedly connected with a second rolling block, the second rolling blocks are arranged in a semicircular mode, a second rolling groove is formed in the position, corresponding to the second rolling block, of the sealing cover, and the second rolling blocks are respectively connected in the corresponding second rolling grooves in a sliding mode.

Preferably, the cross section of the first rolling groove is arc-shaped.

Preferably, the cross section of the second rolling groove is arc-shaped.

Preferably, the bearing inner ring, the bearing outer ring and the roller are all made of chrome-manganese high-carbon steel.

Compared with the prior art, the utility model provides a double-row cylindrical roller bearing for a direct-drive wind power generation gearbox, which has the following beneficial effects:

this directly drive double-row cylindrical roller bearing for wind power generation gearbox, outer lane V type through the bearing inner race sets up and the inner circle V type of bearing outer lane sets up, makes roller (33) of both sides to the central slope, and when the bearing received the axial force, because the cooperation of bearing inner race and bearing outer lane, made the difficult separation and disintegration of bearing, the roller was difficult for breaking away from, increased the life of bearing, can bear higher axial force, increased the range of application of bearing, facilitate promotion.

The parts which are not involved in the device are the same as or can be realized by the prior art, the rollers (33) at two sides are inclined towards the center through the outer ring V-shaped arrangement of the bearing inner ring and the inner ring V-shaped arrangement of the bearing outer ring, when the bearing is subjected to axial force, the bearings are not easy to separate and disassemble due to the matching of the bearing inner ring and the bearing outer ring, the rollers are not easy to separate, the service life of the bearing is prolonged, higher axial force can be borne, the application range of the bearing is enlarged, and the device is convenient to popularize.

Drawings

FIG. 1 is a schematic structural view of a double-row cylindrical roller bearing for a direct-drive wind power generation gearbox, which is provided by the utility model;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is an enlarged view of a portion B in fig. 2.

In the figure: the bearing comprises a bearing inner ring 1, a bearing outer ring 2, a roller structure 3, a retaining ring 31, a retaining block 32, a roller 33, a cover 4, a first rolling block 5, a first rolling groove 6, a second rolling block 7 and a second rolling groove 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, the double-row cylindrical roller bearing for the direct-drive wind power generation gearbox comprises a bearing inner ring 1 and a bearing outer ring 2, wherein a roller structure 3 is connected between the bearing inner ring 1 and the bearing outer ring 2;

the roller structure 3 comprises a retaining ring 31, a plurality of retaining blocks 32 and a plurality of rollers 33, the retaining ring 31 is fixedly connected to one side of the bearing inner ring 1 close to the bearing outer ring 2, the outer ring of the bearing inner ring 1 is arranged in a V shape, the inner ring of the bearing outer ring 2 is arranged in a V shape, the plurality of retaining blocks 32 are fixedly connected to two sides of the retaining ring 31 uniformly and equidistantly, the plurality of rollers 33 are respectively arranged between two adjacent retaining rings 31, the plurality of rollers 33 are arranged between the bearing inner ring 1 and the bearing outer ring 2, the rollers 33 are arranged in an inclined manner, the bearing inner ring 1 is connected with the rollers 33 in a rolling manner, the bearing outer ring 2 can rotate on the bearing inner ring 1, the rollers 33 ensure the distance between the rollers 33 through the retaining rings 31 and the retaining blocks 32, and the V-shaped arrangement of the outer ring of the bearing inner ring 1 and the V-shaped arrangement of the bearing outer ring 2 are adopted, the rollers 33 on the two sides are inclined towards the center, when the bearing is subjected to axial force, the bearing is not easy to separate and disassemble due to the matching of the bearing inner ring 1 and the bearing outer ring 2, the rollers are not easy to separate, the service life of the bearing is prolonged, higher axial force can be borne, the application range of the bearing is enlarged, and the popularization is facilitated.

The outer ring of the bearing inner ring 1 is fixedly connected with the sealing cover 4, and the sealing cover 4 is arranged annularly to prevent the roller 33 from separating from the bearing, so that the service life is prolonged.

The first rolling block 5 of the equal fixedly connected with in one side that a plurality of roller 33 is close to retainer ring 31, first rolling block 5 is the semicircle type setting, and first roll groove 6 has been seted up to the position that retainer ring 31 corresponds first rolling block 5, and the first rolling block 5 of a plurality of blocks is sliding connection respectively in the first roll groove 6 that corresponds, reduces the frictional force between roller 33 and the retainer ring 31, reduces wearing and tearing, rotates more in the same direction as smooth.

The second rolling blocks 7 are fixedly connected to one ends, close to the sealing cover 4, of the plurality of rollers 33, the second rolling blocks 7 are arranged in a semicircular mode, the second rolling grooves 8 are formed in the positions, corresponding to the second rolling blocks 7, of the sealing cover 4, the second rolling blocks 7 are connected in the corresponding second rolling grooves 8 in a sliding mode respectively, friction force between the rollers 33 and the sealing cover 4 is reduced, abrasion is reduced, and rotation is smoother.

The cross section of the first rolling groove 6 is arc-shaped, the matching degree with the first rolling block 5 is high, and the friction force is further reduced.

The section of the second rolling groove 8 is arc-shaped, the matching degree with the second rolling block 7 is high, and the friction force is further reduced.

The bearing inner ring 1, the bearing outer ring 2 and the roller 33 are made of chromium-manganese high-carbon steel, so that the bearing is higher in strength, more wear-resistant, less prone to wear and long in service life.

According to the utility model, the bearing inner ring 1 is in rolling connection with the rollers 33, the bearing outer ring 2 can rotate on the bearing inner ring 1, the rollers 33 ensure the distance between the rollers 33 through the retaining ring 31 and the retaining block 32, the rollers 33 on two sides are inclined towards the center through the outer ring V-shaped arrangement of the bearing inner ring 1 and the inner ring V-shaped arrangement of the bearing outer ring 2, when the bearing is subjected to axial force, the bearing is not easy to separate and disassemble due to the matching of the bearing inner ring 1 and the bearing outer ring 2, the rollers are not easy to separate, the service life of the bearing is prolonged, higher axial force can be borne, the application range of the bearing is increased, and the popularization is facilitated.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A double-row cylindrical roller bearing for a direct-drive wind power generation gearbox comprises a bearing inner ring (1) and a bearing outer ring (2), and is characterized in that a roller structure (3) is connected between the bearing inner ring (1) and the bearing outer ring (2);

roller structure (3) are including retainer ring (31), a plurality of piece retaining block (32) and a plurality of roller (33), retainer ring (31) fixed connection is in one side that bearing inner race (1) is close to bearing inner race (2), the outer lane of bearing inner race (1) is the setting of V type, the inner circle of bearing inner race (2) is the setting of V type, a plurality of the even equidistance fixed connection of retainer block (32) is in the both sides of retainer ring (31), a plurality of roller (33) sets up respectively between two adjacent retainer rings (31), and a plurality of roller (33) set up between bearing inner race (1) and bearing inner race (2), roller (33) are the slope setting.

2. The double-row cylindrical roller bearing for the direct-drive wind power generation gearbox is characterized in that a sealing cover (4) is fixedly connected to the outer ring of the bearing inner ring (1), and the sealing cover (4) is annularly arranged.

3. The double-row cylindrical roller bearing for the direct-drive wind power generation gearbox is characterized in that one side, close to the retaining ring (31), of the plurality of rollers (33) is fixedly connected with a first rolling block (5), the first rolling block (5) is arranged in a semicircular mode, a first rolling groove (6) is formed in the position, corresponding to the first rolling block (5), of the retaining ring (31), and the first rolling blocks (5) are connected in the corresponding first rolling grooves (6) in a sliding mode respectively.

4. The double-row cylindrical roller bearing for the direct-drive wind power generation gearbox is characterized in that one end, close to the sealing cover (4), of each of the plurality of rollers (33) is fixedly connected with a second rolling block (7), the second rolling blocks (7) are arranged in a semicircular mode, a second rolling groove (8) is formed in the position, corresponding to the second rolling block (7), of the sealing cover (4), and the second rolling blocks (7) are connected in the corresponding second rolling grooves (8) in a sliding mode respectively.

5. The double-row cylindrical roller bearing for the direct-drive wind power generation gearbox as recited in claim 3, characterized in that the cross section of the first rolling groove (6) is arc-shaped.

6. The double-row cylindrical roller bearing for the direct-drive wind power generation gearbox is characterized in that the cross section of the second rolling groove (8) is in an arc shape.

7. The double-row cylindrical roller bearing for the direct-drive wind power generation gearbox according to claim 1, wherein the bearing inner ring (1), the bearing outer ring (2) and the roller (33) are all made of chromium-manganese high-carbon steel.