Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of gas turbine bearing bush force measuring gasket

A bearing and gasket technology, applied in the field of preparation of gas turbine bearing pad force measuring gaskets, can solve the problems of non-replaceable use, high strain gauge damage rate, inability to accurately measure axial force, etc., to save maintenance, improve Accuracy and toughness-enhancing effects

Active Publication Date: 2022-06-24
哈尔滨船舶锅炉涡轮机研究所(中国船舶集团有限公司第七0三研究所)
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the existing gas turbine axial force measurement technology cannot accurately measure the axial force and the damage rate of the strain gauge is high, and cannot be used repeatedly and replaced

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of gas turbine bearing bush force measuring gasket
  • Preparation method of gas turbine bearing bush force measuring gasket
  • Preparation method of gas turbine bearing bush force measuring gasket

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0042] Embodiment 1: Combining Figure 1 to Figure 4 Describe this embodiment, which includes the following steps:

[0043] Step 1: Process the bearing gasket 1:

[0044] Step 11: Arrange the bearing pad gasket 1 longitudinally, and on the plane of the bearing pad gasket 1, take the center point of the bearing pad gasket 1 as the benchmark, and open a strain gauge slot 2 for placing the strain gauge 5;

[0045] Step 1 and 2: a wire groove 3 with a length from one side of the strain gauge groove 2 to the other side edge of the bearing pad gasket 1 is opened under the strain gauge groove 2, and the bottom of the strain gauge groove 2 is adjacent to the wire groove 3;

[0046] Step 13: A chamfer 4 is provided at the connection between the strain gauge groove 2 and the wire groove 3;

[0047] Step 2: Eliminate the metal stress of the bearing pad gasket 1 in Step 1:

[0048] Step 3: Process the strain gauge groove 2 and the wire groove 3:

[0049] Step 31: Grind the strain gaug...

specific Embodiment approach 2

[0062] Specific implementation mode 2: Combining figure 1 Describing this embodiment, in the second step of this embodiment, the metal stress of the bearing pad gasket 1 in step 1 is eliminated as follows: the processed bearing pad gasket 1 is placed on the dynamometer, and the process is carried out 3 times according to the maximum working pressure Loading, the holding time of each rated load should be 1min. After each loading to the rated load, unload to zero load and wait for at least 30s to eliminate the metal stress. Other components and connection relationships are the same as in the first embodiment.

specific Embodiment approach 3

[0063] Specific implementation three: combination figure 1 Illustrating this embodiment, in step 2 of this embodiment, the speed of three times of loading according to the maximum working pressure is 8-20 kN / s. This arrangement facilitates better elimination of metal stress. Other compositions and connection relationships are the same as in the first or second embodiment.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a gasket, in particular to a preparation method of a gas turbine bearing bush force measuring gasket. The invention aims to solve the problems that the existing gas turbine axial force measurement technology cannot accurately measure the axial force, the strain gauge is high in damage rate, and the strain gauge cannot be repeatedly used and replaced. A bearing bush gasket (1) is machined, metal stress is eliminated, a strain gauge groove (2) and a wire groove (3) are polished, an oxide layer on the metal surface is removed, a wire is arranged in the wire groove, the wire is bent to correspond to a welding spot of a strain gauge (5), the strain gauge (5) is welded, plane treatment is conducted, and glass fiber high-temperature cloth is selected as a protection layer of the strain gauge (5) and the wire (6). And carrying out single-side polishing on the glass fiber high-temperature cloth, after curing is completed, taking down the pressurizing tool and the polytetrafluoroethylene film, scraping the overflowing glue along the edge of the glass fiber high-temperature cloth, and testing the on-off of a circuit and the resistance between corresponding wires. The method is used for preparing the gas turbine bearing bush force measuring gasket.

Description

technical field [0001] The invention relates to a preparation method of a gasket, in particular to a preparation method of a gas turbine bearing bush force measuring gasket. Background technique [0002] If there is an error in the axial installation of the gas turbine shaft, it will be put into use, which will cause the wear of the gas turbine shaft, thereby affecting the safe operation of the gas turbine unit. At present, most of the methods used to measure the axial force of gas turbines use an axial force measuring ring or directly paste the strain gauge 5 on the bearing tile. The axial force measuring ring can only monitor the average value of the axial force of the three force-bearing points during measurement, and cannot monitor each force-measuring point individually, resulting in the inability to accurately measure whether the shaft is installed during the installation process. error. When measuring the force by pasting the strain gauge 5 on the bearing pad, since...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00G01L1/22
CPCB23P15/00G01L1/22
Inventor 王鹏于汇怀添媛王赫田昊川石磊
Owner 哈尔滨船舶锅炉涡轮机研究所(中国船舶集团有限公司第七0三研究所)