CN218408151U

CN218408151U - Novel tilting pad radial bearing

Info

Publication number: CN218408151U
Application number: CN202222901962.7U
Authority: CN
Inventors: 沙志远; 杨耀鹏
Original assignee: Shandong Huadong Fan Co ltd
Current assignee: Shandong Huadong Fan Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-01-31
Anticipated expiration: 2032-11-02

Abstract

The utility model relates to a novel tilting pad radial bearing belongs to bearing technical field, including main shaft, outer lane and axle bush, the axle bush sets up between main shaft and outer lane, the outside of main shaft is located to the axle bush cover, and the axle bush is provided with three groups along the circumferencial direction equidistant of main shaft. The bearing bush is rotatably connected with the outer ring, and a plurality of groups of herringbone grooves are formed in the outer side wall of the main shaft at equal intervals. When the main shaft rotates, the air flow passes through the herringbone groove, the herringbone groove compresses the air flow, the air flow is accelerated to pass through a gap between the bearing bush and the main shaft, a gas film is quickly formed, the time from an initial state to suspension of the main shaft is shortened, the friction time between the main shaft and the bearing bush during starting is shortened, the abrasion of the bearing is reduced, and the service life of the bearing is prolonged. In addition, the friction force between the main shaft and the bearing bush is reduced, the power consumption of the bearing can be reduced, and the energy is saved.

Description

Novel tilting pad radial bearing

Technical Field

The utility model belongs to the technical field of the bearing technique and specifically relates to a novel tilting pad radial bearing is related to.

Background

The bearing is an important part in the modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body. The tilting pad bearing is a swinging pad bearing, and is composed of 3-5 or more arc-shaped pads which freely tilt on a fulcrum. The surface of a common tilting pad bearing and the surface of a main shaft are smooth, and when the main shaft rotates, gas enters a gap between the bearing and the main shaft to form a gas film (dynamic pressure gas film) to suspend the main shaft, so that the friction force between the main shaft and the bearing can be reduced. Because the formation of the gas film requires the main shaft to rotate for a certain time, when the main shaft just starts to rotate, a certain friction force still exists between the main shaft and the bearing, and the service life of the bearing is reduced. In order to solve the problems in the prior art, a novel tilting pad radial bearing is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem among the above-mentioned prior art, provide a novel tilting pad journal bearing, can realize through following technical scheme:

a novel tilting pad radial bearing comprises a main shaft, an outer ring and a bearing bush, wherein the bearing bush is arranged between the main shaft and the outer ring, the outer side of the main shaft is sleeved with the bearing bush, the bearing bush is rotatably connected with the outer ring, and a herringbone groove is formed in the outer side wall of the main shaft

The utility model discloses further set up to: the herringbone grooves are arranged in a plurality of groups at equal intervals.

The utility model discloses further set up to: the bearing bush is provided with three groups at equal intervals along the circumferential direction of the main shaft, the inner side wall of the outer ring is fixedly connected with supporting rods at equal intervals, the supporting rods are provided with three groups, one end of each supporting rod, close to the bearing bush, is fixedly connected with a supporting ball, and the bearing bush is connected with the supporting ball.

To sum up, the utility model discloses a beneficial technological effect does:

when the main shaft rotates, the air flow passes through the herringbone groove, the herringbone groove compresses the air flow, the air flow is quickened to pass through a gap between the bearing bush and the main shaft, a gas film is quickly formed, the time from the initial state to suspension of the main shaft is shortened, the friction time between the main shaft and the bearing bush during starting is shortened, the abrasion of the bearing is reduced, and the service life of the bearing is prolonged. In addition, the friction force between the main shaft and the bearing bush is reduced, the power consumption of the bearing can be reduced, and the energy is saved.

Drawings

Fig. 1 is a plan view for showing the overall structure of the present embodiment;

FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic view of the spindle for showing the spindle.

Reference numerals: 1. a main shaft; 2. an outer ring; 3. bearing bushes; 4. a herringbone groove; 5. a support bar; 6. and supporting the ball.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples

As shown in fig. 1-3, for the utility model discloses a novel tilting pad radial bearing, including main shaft 1, outer lane 2 and axle bush 3, axle bush 3 sets up between main shaft 1 and outer lane 2, and the outside of main shaft 1 is located to 3 covers of axle bush, and axle bush 3 rotates with outer lane 2 to be connected, and equidistant a plurality of groups herringbone groove 4 of having seted up on the main shaft 1 lateral wall. When the main shaft 1 rotates, airflow passes through the herringbone grooves 4, the herringbone grooves 4 compress the airflow, the airflow is accelerated to pass through a gap between the bearing bush 3 and the main shaft 1, a gas film is formed quickly, the time from an initial state to suspension of the main shaft 1 is shortened, the friction time between the main shaft 1 and the bearing bush 3 during starting is shortened, the abrasion of a bearing is reduced, and the service life of the bearing is prolonged. In addition, the friction force between the main shaft 1 and the bearing bush 3 is reduced, so that the power consumption of the bearing can be reduced, and the energy is saved.

The axle bush 3 is provided with three groups along the circumferencial direction of main shaft 1 at an equal interval, and the inboard wall of outer lane 2 is equidistant fixedly connected with three groups of bracing pieces 5, and the one end fixedly connected with support ball 6 that bracing piece 5 is close to axle bush 3, and axle bush 3 is connected with support ball 6.

Claims

1. The utility model provides a novel tilting pad radial bearing, includes main shaft (1), outer lane (2) and axle bush (3), axle bush (3) set up between main shaft (1) and outer lane (2), the outside of main shaft (1) is located to axle bush (3) cover, axle bush (3) are rotated with outer lane (2) and are connected, its characterized in that, herringbone groove (4) have been seted up on main shaft (1) lateral wall.

2. A new type of tilting pad radial bearing according to claim 1, characterized in that said herringbone grooves (4) are equally spaced in groups.

3. The novel tilting pad radial bearing according to claim 1, wherein the bearing pads (3) are provided with three groups at equal intervals along the circumferential direction of the main shaft (1), the inner side wall of the outer ring (2) is fixedly connected with support rods (5) at equal intervals, the support rods (5) are provided with three groups, one end of each support rod (5) close to the bearing pad (3) is fixedly connected with a support ball (6), and the bearing pads (3) are connected with the support balls (6).