Metal tile water lubricating friction pair structure

A technology of water lubrication and friction pair, which is applied in the field of metal tile water lubrication friction pair structure, which can solve the problems of friction pair damage, concave deformation, excessive wear increase, etc.

Pending Publication Date: 2017-08-18
HARBIN ELECTRIC POWER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thrust tiles are generally made of graphite materials, which will have concave deformation during thermal transients, making it difficult to establish a water film of normal thickness, resulting in excessive wear and even irreversible damage to the friction pair

Method used

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  • Metal tile water lubricating friction pair structure
  • Metal tile water lubricating friction pair structure
  • Metal tile water lubricating friction pair structure

Examples

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Effect test

Embodiment Construction

[0019] figure 1 It is a metal tile water-lubricated friction pair structure, that is, the thrust plate 3 is installed on the shaft 2, the positioning pin 4 is installed on the thrust plate 3 with interference, and the non-metallic thrust surface 5 is fixed on the thrust plate 3 through the positioning pin 4 , the first pressure ring 6 is connected to the bottom of the thrust plate 3 through the first bolt 7; the support block 11 is arranged at the bottom of the thrust pad 13, and the support block 11 is installed on the bearing seat 10, and the second pressure ring 17 is closed through the second bolt 16 On the upper side of the outer circle of the bearing seat 10, the third pressure ring 14 is connected to the upper side of the inner circle of the bearing seat 10 by the third bolt 15; the bearing seat 10 is installed above the machine base 1, and the bottom of the inner circle of the bearing seat 10 is installed with the first O-type seal ring 8, the second O-type seal ring 9...

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Abstract

The invention relates to a metal tile water lubricating friction pair structure. A whole circle embedded thrust face is adopted for a thrust disc, and the thrust disc is made from graphite or silicon carbide or ceramic or a carbon fiber reinforced composite. A thrust tile is a metal tile, and the thrust tile is made of double-phase high-chromium alloy or is obtained by carrying out hardened layer treatment on the surface of a common steel material. The surface hardness of the thrust tile is HRC45-65, and the surface hardness of the thrust disc is HS50-85. The thrust face of the thrust disc is convenient to demount and maintain, the thrust tile is provided with a full-metal heat-insulation-free nonmetal tile face, the tile face is free of harmful concave deformation in a thermal transient state, and high temperature, high pressure and irradiation are resisted. The friction pair structure can be widely applied to the fields of three-generation nuclear power plants, small floating heaps and ship and warship nuclear power.

Description

technical field [0001] The invention relates to a water-lubricated friction pair structure of a metal tile. Background technique [0002] With the increasing safety standards of nuclear power plants, the low leakage rate of the primary circuit of the reactor has become the mainstream technical solution. The main pump of the traditional pressurized water reactor uses a shaft-sealed main pump. The shaft seal has hidden dangers of radiation leakage. The new third-generation pressurized water Type nuclear main pump or wet winding nuclear main pump, both nuclear main pumps use water lubricated bearings, and the water thrust of the impeller is mainly borne by water lubricated thrust bearings. Water-lubricated friction pairs are required to be resistant to high temperature, radiation, and impact. Traditional water-lubricated friction pairs generally use metal materials for the thrust plate and non-metallic materials for the thrust pads. [0003] Generally, the area of ​​the thrust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C27/06F16C27/08F16C23/04F16C33/74F16C33/06F16C33/12F16C33/10F16C33/16F16C37/00F04D29/04F04D29/046
CPCF04D29/04F04D29/046F16C23/048F16C27/06F16C27/08F16C33/06F16C33/108F16C33/1095F16C33/12F16C33/121F16C33/16F16C33/74F16C37/00F16C2204/66F16C2204/70F16C2360/44F16C2202/50F16C2202/52
Inventor 王伟光李藏雪李伟曲大庄付嵩李洋曲建
Owner HARBIN ELECTRIC POWER EQUIP
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