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Hydrogenorator with water lubricated bearing structuve

A technology for water turbine generators, water lubricated bearings, applied in the direction of bearing components, shafts and bearings, engine components, etc.

Inactive Publication Date: 2004-03-24
孙晶 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problems to be solved for hydroelectric generators with water-lubricated bearing structures are water-lubricated elastic metal-plastic bearings to promote the formation of water film and the anti-cavitation and rust structure of the journal or thrust plate friction surface

Method used

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  • Hydrogenorator with water lubricated bearing structuve
  • Hydrogenorator with water lubricated bearing structuve
  • Hydrogenorator with water lubricated bearing structuve

Examples

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example 1

[0011] Example 1, the segmented water lubricated bearing of hydroelectric generator are described as follows in conjunction with accompanying drawing 1 and accompanying drawing 2. The journal 3 is fixed on the main shaft 2 of the water turbine, and its surface is compounded with a stainless steel layer 4, and the surface roughness of the journal 3 in frictional contact with the segmented guide bearing bush 7 is lower than 0.8 microns. The bearing bush is supported on the side wall of the water bearing basin 8 by means of support bolts 9 . Water inlet pipe 10 is installed in the basin bottom, and cold water 6 flows into the basin and fills up therefrom and draws water pipe 1 to flow out on cover 5. Block guide bearing bush 7 is by the tile base of steel, and its surface is brazed with the thick stainless steel wire layer of 5.0mm, and stainless steel wire city is inlaid into 0.5~1.5mm in the plastic tile surface, and plastic layer is thick 2.0~3.0mm. The semi-tightness of the ...

example 2

[0012] Example 2. The bearing shell of the cylindrical water-lubricated bearing of the hydroelectric generator is shown in Figure 2. Due to the shell type cylinder type, the pad base 11 is a steel structure. Its inner surface is brazed with tube alloy wire layer 12, and the thickness of the modified layer is 4.0-5.0 mm, and the plastic tile surface 13 and copper alloy wire layer 12 are inlaid with 0.5-1.5 mm. Plastic tile surface 13 is divided into 4 sections by the gutter 14 that is inclined along the direction of rotation, and every section is provided with water inlet wedge surface 17, and its length is 1 / 4 of the circumferential length of this section plastic surface. The water outlet wedge surface 15 is 1 / 9 of the circumferential length of this section. The ratio of the bearing surface 16 to the bearing reaches 0.1 to 0.3mm.

[0013] Example 3, the structure of the horizontal water-lubricated bearing is that the surface of the main shaft 25 is welded with a layer of sta...

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Abstract

The present invention relates to a hydro generator with water-lubricated bearing structure, and is characterized by that the partial or all the bearings are water-bubricated elastic metal plastic tile structure, the stainless steel or copper alloy wire is coiled and laminated into the wire cake layer with a certain elastic modulus, its one surface is inlaid into 0.5-1.5 mm of plastic layer, and another surface is soldered on the tile base of the steel, and the length of water inlet wedge surface of the plastic surface is 1 / 5-1 / 3 of the circumferential length of the tile surface, the water stream can be fed into the bearing, and passed through the friction surface and flowed out so as to form lubrication.

Description

Technical field: [0001] The hydro-generator with water-lubricated bearing structure belongs to the category of electrical hydro-generator. Background technique: [0002] As early as the 1940s, the former Soviet Union first used water-lubricated rubber bearing bushes in the water guide bearings of vertical hydroelectric generators to realize water-lubricated bearing operation. Until now my country's Zhaoping, Tuoxi, Shangyoujiang Hydropower Station etc. are still the operation of hydroelectric generators with water-lubricated rubber bearing bushes. However, due to the poor geometric dimension of the rubber bearing pad, the wear is large, and it is easy to produce the phenomenon of burning tiles, and the short service life is its serious shortcoming. So it is not used much now. In recent years, due to the development of plastics, wear-resistant and water-resistant plastics, such as ultra-high polyethylene, polyoxymethylene, polytetrafluoroethylene, polyphenylene and other pl...

Claims

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Application Information

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IPC IPC(8): F03B13/00F16C33/10
Inventor 孙晶邹高万孙守驯孙守连
Owner 孙晶
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