CN214146241U

CN214146241U - Radial bearing

Info

Publication number: CN214146241U
Application number: CN202023119463.XU
Authority: CN
Inventors: 李必相; 杨杰; 廉明浩
Original assignee: Taizhou 7816 Shipbuilding Industry Co ltd
Current assignee: Taizhou 7816 Shipbuilding Industry Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-09-07
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses a radial bearing, which comprises a radial tile body; the outer side of the radial tile block body is provided with a bearing shell, two sides of the bearing shell are provided with end covers for controlling oil drainage, the inner side of the radial tile block body is integrally formed with a plurality of tilting tiles which are uniformly distributed according to the circumference, and a damping vibration attenuation structure is arranged between the tilting tiles and the radial tile block body; and a plurality of oil injection holes which are uniformly distributed according to the circumference and penetrate through the inner side of the radial tile body are arranged on the outer wall of the bearing shell.

Description

Radial bearing

Technical Field

The utility model belongs to the technical field of tilting pad bearing, refer in particular to a radial bearing.

Background

The tilting pad bearing is generally composed of 3-5 or more arc-shaped pads capable of freely tilting on a pivot point, so that the tilting pad bearing is also called a movable support multi-pad bearing and is also called a swinging shaft pad bearing. Because the pad can freely swing along with different rotating speeds, loads and bearing temperatures, a plurality of oil wedges are formed around the shaft neck. And each oil film pressure always points to the center, so that the stability is high.

However, the conventional tilting pad bearing has undesirable damping effect, so that the service life of the whole bearing is shortened.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a radial tilting pad bearing that simple structure and damping are respond well.

In order to achieve the above purpose, the utility model provides a following technical scheme: a radial bearing comprising a radial pad body; the outer side of the radial tile block body is provided with a bearing shell, two ends of the bearing shell are provided with end covers for controlling oil drainage, a plurality of tilting pads are uniformly distributed on the circumference of the inner side of the radial tile block body in an integrated mode, and a damping vibration attenuation structure is arranged between the tilting pads and the radial tile block body; and a plurality of oil injection holes which are uniformly distributed according to the circumference and penetrate through the inner side of the radial tile body are arranged on the outer wall of the bearing shell.

By adopting the technical scheme, the damping vibration attenuation structure is arranged between the tilting pad block and the radial pad block body, so that a good vibration attenuation effect can be achieved, and the service life of the bearing is ensured.

The utility model discloses further set up to: the radial tile body have a plurality of according to circumference evenly distributed's bearing piece concatenation form, every the bearing piece all through a plurality of fastening bolt and bearing housing fixed connection, and be formed with the clearance between the adjacent bearing piece.

Through adopting foretell technical scheme, radial tile body has a plurality of to form according to circumference evenly distributed's bearing piece concatenation, in case a certain tile piece damages, can only change and damage the tile piece, need not to change whole bearing, can practice thrift the cost by a wide margin.

The utility model discloses further set up to: each bearing block is provided with a tilting pad block, and each bearing block is provided with an oil hole penetrating to the inner side of the bearing block.

By adopting the technical scheme, each bearing block is provided with the tilting pad block, and each bearing block is provided with the oil injection hole penetrating to the inner side of the bearing block, so that the structure of each bearing block is uniform, and the bearing block has good manufacturability and interchangeability.

The utility model discloses further set up to: damping vibration attenuation structure for the groove-shaped structure of through-bearing piece, include from the radial both sides of tilting pad piece to the first damping vibration attenuation groove of tilting pad piece middle part extension and set up the second damping vibration attenuation groove between two first damping vibration attenuation grooves, first damping vibration attenuation groove and second damping vibration attenuation groove all not cut off tilting pad piece and bearing piece between integrated into one piece's the relation of being connected.

By adopting the technical scheme, the whole damping effect of the damping vibration attenuation structure can be ensured by arranging the two damping vibration attenuation grooves.

The utility model discloses further set up to: the first damping vibration attenuation groove comprises a first groove part cut from the inner side end of the bearing block, a second groove part connected with the first groove part and extending towards the middle of the tilting pad block along the radial direction, and an S-shaped third groove part arranged at one side of the second groove part and extending towards the outer side surface of the bearing block, wherein a bearing part is formed at the joint of the second groove part and the third groove part, and the first groove part at one side of the bearing block is superposed with the gap.

By adopting the technical scheme, the bearing has automatic adjustment performance on the whole under the matching of the first groove part, the second groove part and the third groove part.

The utility model discloses further set up to: the second damping vibration attenuation groove comprises a fourth groove part and a fifth groove part, wherein the fourth groove part is coaxial with the first groove part, the fifth groove part is arranged at two sides close to the fourth groove part, extends towards the bearing part and is in a hook shape, and extending parts extending towards the inner side surface direction of the bearing block are arranged at two sides of the fourth groove part.

By adopting the technical scheme, under the matching of the first groove part, the second groove part, the third groove part, the fourth groove part, the fifth groove part and the extension part, the whole bearing has not only automatic adjustment performance, but also excellent vibration reduction performance.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

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

FIG. 3 is an enlarged view of a portion of FIG. 2 at I;

reference numbers in the drawings and corresponding part names: the damping device comprises a radial pad block body 1, a bearing block 1a, a bearing housing 2, an end cover 3, a tilting pad block 4, an oil injection hole 5, a clearance 6, a first damping vibration reduction groove 7a, a first groove part 7a, a second groove part 7b, a third groove part 7c, a second damping vibration reduction groove 8, a fourth groove part 8a, a fifth groove part 8b, a bearing part 9 and an extension part 10.

Detailed Description

An embodiment of the present invention is further explained with reference to fig. 1 to 3.

A radial bearing comprises a radial pad body 1; a bearing shell 2 is arranged on the outer side of the radial tile block 1, end covers 3 for controlling oil drainage are arranged on two sides of the bearing shell 2, a plurality of tilting tiles 4 are uniformly distributed on the circumference of the inner side of the radial tile block 1 in an integrated mode, and a damping vibration attenuation structure is arranged between the tilting tiles 4 and the radial tile block 1; and a plurality of oil injection holes 5 which are uniformly distributed according to the circumference and penetrate to the inner side of the radial tile block body 1 are arranged on the outer wall of the bearing shell 2.

The tilting pad block 4 and the radial pad block body 1 are provided with damping vibration attenuation structures, so that a good vibration attenuation effect can be achieved, and the service life of the bearing is ensured.

Further: radial tile block 1 have a plurality of to form according to the concatenation of circumference evenly distributed's bearing piece 1a, every bearing piece 1a all through a plurality of fastening bolt and bearing housing 2 fixed connection, and be formed with gapped 6 between adjacent bearing piece 1 a.

Through radial tile body 1 have a plurality of to form according to the concatenation of circumference evenly distributed's bearing piece 1a, in case certain tile piece damages, can only change and damage the tile piece, need not to change whole bearing, can practice thrift the cost by a wide margin.

Further: each bearing block 1a is provided with a tilting pad 4, and each bearing block 1a is provided with an oil hole 5 penetrating to the inner side.

A tilting pad block 4 is formed on each bearing block 1a, and an oil filling hole 5 penetrating to the inner side of each bearing block 1a is formed in each bearing block 1a, so that the structure of each bearing block 1a is uniform, and the bearing blocks have good manufacturability and interchangeability.

Firstly, firstly: damping vibration attenuation structure for running through bearing block 1 a's slot-like structure, including the first damping vibration attenuation groove 7 that extends to tilting pad 4 middle part from tilting pad 4 radial both sides, and set up the second damping vibration attenuation groove 8 between two damping vibration attenuation grooves, first damping vibration attenuation groove 7 and second damping vibration attenuation groove 8 all not cut off tilting pad 4 and bearing block 1a between integrated into one piece's the relation of connection.

The whole damping effect of the damping vibration attenuation structure can be ensured through the arrangement of the two damping vibration attenuation grooves.

Further: the first damping vibration attenuation groove 7 comprises a first groove part 7a cut from the inner end of the bearing block 1a, a second groove part 7b connected with the first groove part 7a and extending to the middle part of the tilting pad 4 along the radial direction, and an S-shaped third groove part 7c arranged at one side of the second groove part 7b and extending to the outer side surface direction of the bearing block 1a, wherein a bearing part 9 is formed at the connection part of the second groove part 7b and the third groove part 7c, and the first groove part 7a at one side of the bearing block 1a is overlapped with the gap 6.

By adopting the above technical scheme, the bearing has the automatic adjustment performance as a whole under the matching of the first groove part 7a, the second groove part 7b and the third groove part 7 c.

Further: the second damping vibration-damping groove 8 includes a fourth groove portion 8a provided coaxially with the first groove portion 7a, and a hook-shaped fifth groove portion 8b provided near both sides of the fourth groove portion 8a and extending toward the receiving portion 9, and extending portions 10 extending toward the inner side surface of the bearing block 1a are provided on both sides of the fourth groove portion 8 a.

By the cooperation of the first groove portion 7a, the second groove portion 7b, the third groove portion 7c, the fourth groove portion 8a, the fifth groove portion 8b and the extension portion 10, the entire bearing has not only the self-aligning performance but also the excellent vibration damping performance.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A radial bearing comprises a radial pad body (1) and is characterized in that a bearing shell (2) is arranged on the outer side of the radial pad body (1), end covers (3) used for limiting the radial pad body (1) are arranged at two ends of the bearing shell (2), a plurality of tilting pad blocks (4) are uniformly distributed on the inner side of the radial pad body (1) in a circumferential mode in an integrated mode, and a damping vibration attenuation structure is arranged between the tilting pad blocks (4) and the radial pad body (1); and a plurality of oil injection holes (5) which are uniformly distributed according to the circumference and penetrate through the inner side of the radial tile block body (1) are arranged on the outer wall of the bearing shell (2).

2. A radial bearing according to claim 1, wherein: radial tile block body (1) form according to circumference evenly distributed's bearing piece (1a) concatenation by a plurality of, every bearing piece (1a) all through a plurality of fastening bolt and bearing housing (2) fixed connection, and be formed with gapped (6) between adjacent bearing piece (1 a).

3. A radial bearing according to claim 2, wherein: each bearing block (1a) is provided with a tilting pad (4), and each bearing block (1a) is provided with an oil hole (5) penetrating to the inner side of the bearing block.

4. A radial bearing according to claim 3, wherein: damping vibration attenuation structure for the trough-shaped structure of through bearing piece (1a), including first damping vibration attenuation groove (7) that extend to tilting pad piece (4) middle part from radial both sides of tilting pad piece (4) and set up second damping vibration attenuation groove (8) between two first damping vibration attenuation grooves (7), first damping vibration attenuation groove (7) and second damping vibration attenuation groove (8) all not cut off tilting pad piece (4) and bearing piece (1a) between integrated into one piece's the relation of connection.

5. A radial bearing according to claim 4, wherein: the first damping and vibration reduction groove (7) comprises a first groove part (7a) cut from the inner side end of the bearing block (1a), a second groove part (7b) connected with the first groove part (7a) and extending along the middle part of the radial tilting pad block (4), and an S-shaped third groove part (7c) arranged on one side of the second groove part (7b) and extending towards the outer side surface direction of the bearing block (1a), a bearing part (9) is formed at the connection part of the second groove part (7b) and the third groove part (7c), and the first groove part (7a) on one side of the bearing block (1a) is overlapped with the gap (6).

6. A radial bearing according to claim 5, wherein: the second damping vibration attenuation groove (8) comprises a fourth groove part (8a) and a fifth hook-shaped groove part (8b), wherein the fourth groove part (8a) is coaxial with the first groove part (7a), the fifth hook-shaped groove part (8b) is arranged at two sides close to the fourth groove part (8a), extends towards the bearing part (9) and is in a hook shape, and extending parts (10) extending towards the inner side surface direction of the bearing block (1a) are arranged at two sides of the fourth groove part (8 a).