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Tile block fulcrum structure for tilting-pad bearing experiment and assembly method of tile block fulcrum structure

An experimental and bearing technology, applied in the direction of climate sustainability, greenhouse gas reduction, nuclear power generation, etc., can solve the problem of experimental cost and experimental time not having much practical significance, and achieve the effect of increasing the working range

Active Publication Date: 2022-08-05
DONGFANG TURBINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, in order to achieve better stability and higher load-bearing performance, partial branch tilting pad bearings are widely used at present, but the appropriate partial branch coefficient needs to be verified by a large number of experiments, and new pads are produced through continuous processing. Changing the partial branching coefficient for experimentation does not have much practical significance in terms of experiment cost or experiment time

Method used

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  • Tile block fulcrum structure for tilting-pad bearing experiment and assembly method of tile block fulcrum structure
  • Tile block fulcrum structure for tilting-pad bearing experiment and assembly method of tile block fulcrum structure
  • Tile block fulcrum structure for tilting-pad bearing experiment and assembly method of tile block fulcrum structure

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Experimental program
Comparison scheme
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Embodiment 1

[0031] A pad fulcrum structure for tilting pad bearing experiments, such as Figure 1-Figure 5 As shown, it includes a bearing bush 1, a guide groove 2 is opened on the bearing bush 1, and a spherical spacer block 3 that can be adjusted in position along the guide groove 2 is arranged in the guide groove 2, and the spherical spacer block 3 is guided along the guide groove 2. The two sides of the groove 2 are also provided with limit blocks 4 for fixing the spherical spacer 3 . The position of the limit blocks 4 can be adjusted along the direction of the guide groove 2 , and the limit blocks 4 are fixedly assembled in the guide groove 2 . .

[0032] The structure design of the present invention is obviously different from the traditional structure. In the design of the structure, the spherical spacer block 3 can be moved in the guide groove 2. This design effectively solves the problem that the traditional structure is: Fixed structure, single function problem, the design of t...

Embodiment 2

[0044] A method for assembling a pad fulcrum structure for a tilting pad bearing experiment, comprising the following steps:

[0045]a. Process the guide groove 2 on the experimental pad of the tilting pad bearing, and process the structure of the guide groove 2 into a dovetail groove when processing the guide groove 2;

[0046] b. Process the bottom surface structure of spherical spacer 3 and limit block 4 according to the curvature of the experimental pad for tilting pad bearing where the guide is located. After the shaft is processed, process and guide the bottom of spherical spacer 3 and limit block 4. The assembly structure matched with the groove 2, through which the spherical spacer block 3 and the limit block 4 can be assembled in the guide groove 2, and at the same time of processing, the matching surface of the limit block 4 and the spherical spacer block 3 is processed into an inclined surface, And process the internal threaded hole on the limit block 4;

[0047] c...

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Abstract

The invention discloses a tile fulcrum structure for a tilting-pad bearing experiment with adjustable partial support and an assembling method thereof, and belongs to the technical field of large rotating machinery such as thermal power, nuclear power, gas turbines and industrial steam turbines. The structure comprises a bearing bush, a guide groove is formed in the bearing bush, a spherical cushion block capable of adjusting the position along the guide groove is arranged in the guide groove, and limiting blocks used for fixing the spherical cushion block are further arranged on the two sides, in the direction of the guide groove, of the spherical cushion block. According to the tile supporting point structure for the tilting-pad bearing experiment and the assembling method of the tile supporting point structure, by combining the design that the spherical cushion block and the limiting block are movable, the unicity that the position of an experimental bearing supporting point of a traditional structure cannot be adjusted is effectively solved, and by means of the designed structure and method, the function that the position of the spherical cushion block can be adjusted is effectively achieved; and the working range of the tested bearing is greatly enlarged while the experiment process is realized.

Description

technical field [0001] The invention relates to a pad fulcrum structure for a tilting pad bearing experiment with adjustable offset and an assembling method thereof, belonging to the technical field of large-scale rotating machinery such as thermal power, nuclear power, gas turbine and industrial steam turbine. Background technique [0002] Tilting pad bearings are widely used in various steam turbine units due to their stable bearing performance. The essence of its stability is that during the operation of the unit, the pad can swing around its fulcrum with the whirl of the rotor, thus ensuring that the oil film force at any time can act on the direction of the connection between the pad fulcrum and the axis. Therefore, the arrangement of the fulcrum of the tile itself is very important. At the same time, in order to achieve better stability and higher load-bearing performance, offset tilting pad bearings are widely used at present, but the appropriate offset coefficient n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D25/16F01D25/28
CPCF01D25/16F01D25/28Y02E30/30
Inventor 安海阳王丹琦李溶江张铭博赵卫军文圆圆舒文号
Owner DONGFANG TURBINE CO LTD