Tilting pad bearing capable of actively controlling oil film gap

A technology of oil film clearance and active control, applied in rotating bearings, sliding contact bearings, bearings, etc., can solve problems such as the inability to ensure the best working state of tilting pad bearings, and achieve the purpose of suppressing journal vibration, improving sensitivity, and improving Effect of Rotation Accuracy

Active Publication Date: 2021-11-19
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thickness of the oil film changes passively according to the load change, and it is in a passive working state, which cannot guarantee that the tilting pad bearing can maintain the best working condition

Method used

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  • Tilting pad bearing capable of actively controlling oil film gap
  • Tilting pad bearing capable of actively controlling oil film gap
  • Tilting pad bearing capable of actively controlling oil film gap

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Embodiment Construction

[0028] In order to further elaborate the technical means and effects that the present invention adopts for reaching the intended invention purpose, below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure, features and effects of the present invention are described in detail as follows:

[0029] A tilting pad bearing with actively controlled oil film clearance, such as Figure 1 to Figure 7 As shown, it includes a bearing 1, and also includes a journal 2 matched with the bearing 1. The bearing 1 includes a body 11, a flexible hinge bearing bush 12, a flexible hinge push rod 13, a thrust hemisphere 14, a piezoelectric ceramic driver 15, bolts 16 and a cover plate 17. Among them, the flexible hinge bearing bush 12 includes a bearing bush 121 and a flexible hinge mechanism A122; the flexible hinge push rod 13 includes a push rod mechanism 131 and a flexible hinge mechanism B132; Cavities 111, each bearing cavity 111 is...

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Abstract

The invention discloses a tilting pad bearing capable of actively controlling an oil film gap. The bearing comprises a body, a flexible hinge bearing bush, a flexible hinge push rod, a thrust hemisphere, a piezoelectric ceramic driver, a bolt and a cover plate, the flexible hinge bearing bush comprises a bearing bush and a flexible hinge mechanism A; the flexible hinge push rod comprises a push rod mechanism and a flexible hinge mechanism B; at least three bearing bush cavities are formed in the circumferential direction of the inner cylindrical surface of the body, and a hinge cavity A and a hinge cavity B are further formed in each bearing bush cavity; the bearing bush is placed in the bearing bush cavity, the flexible hinge mechanism A is placed in the hinge cavity A, and the flexible hinge mechanism B is placed in the hinge cavity B; cylindrical cavities communicated with the hinge cavities A and the hinge cavities B are further formed in the body, and piezoelectric ceramic drivers are placed in the cylindrical cavities; the piezoelectric ceramic driver is controlled to drive the flexible hinge mechanism A and the flexible hinge mechanism B to move in the radial direction, so that the radial displacement and the swing angle of the bearing bush are controlled, and active control over the oil film gap can be achieved.

Description

technical field [0001] The invention relates to the technical field of fluid dynamic pressure bearings, in particular to a tilting pad bearing which actively controls the oil film gap. Background technique [0002] The bearing bush of the tilting pad bearing is generally composed of 3-5 pads. The pads are arc-shaped and can swing freely with the change of speed, load and bearing oil temperature, so that the pads can be automatically adjusted to form an oil wedge. best position. The oil film pressure that each pad acts on the journal always leads to the center of the journal, which eliminates the force source that causes the vortex of the journal, so as to ensure better stability of the bearing. In addition, the tilting pad bearing also has the advantages of large load capacity, less frictional power consumption, and the ability to bear radial loads in all directions. It can be used in a variety of working conditions with different requirements, and has broad application pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C17/03F16C27/02
CPCF16C17/03F16C27/02Y02E10/20
Inventor 张永涛史伟杰胡宇超武路鹏
Owner QINGDAO UNIV OF SCI & TECH
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