CN203500288U

CN203500288U - Combustion gas turbine bearing adopting shaft sleeve structure

Info

Publication number: CN203500288U
Application number: CN201320619395.4U
Authority: CN
Inventors: 叶海涛; 谢献忠; 周凡贞; 孙传海; 朱安君
Original assignee: HARBIN ELECTRIC Co Ltd
Current assignee: HARBIN ELECTRIC Co Ltd
Priority date: 2013-10-09
Filing date: 2013-10-09
Publication date: 2014-03-26
Anticipated expiration: 2023-10-09

Abstract

The utility model discloses a combustion gas turbine bearing adopting a shaft sleeve structure, relates to a combustion gas turbine bearing, and specifically relates to the combustion gas turbine bearing adopting the shaft sleeve structure, aiming at solving a problem that potential safety hazards are brought to the machine unit as a pin roll of the existing combustion gas turbine bearing is large in abrasion on broken tiles and easy to fracture. The combustion gas turbine bearing comprises a bearing carrier ring and a plurality of broken tiles. The combustion gas turbine bearing further comprises a plurality of broken tile limiting pin roll assemblies, wherein each broken tile limiting pin roll assembly comprises a broken tile limiting shaft and a shaft sleeve, each broken tile is arranged on the inner side wall of the bearing carrier ring by the broken tile limiting pin roll assembly, respectively. The combustion gas turbine bearing disclosed by the utility model is used on the machine unit of the combustion gas turbine.

Description

A kind of gas turbine bearing that adopts axle sleeve structure

Technical field

The utility model relates to a kind of gas turbine bearing, is specifically related to a kind of gas turbine bearing that adopts axle sleeve structure.

Background technique

9F level heavy duty gas turbine bearing, to adopt watt self-aligning bearing that can incline, tile fragment in bearing adopts spacing bearing pin mode to fix, simultaneously, utilize pad to adjust axial clearance, its shortcoming is as follows: one, bearing pin heavy wear tile fragment, causes the hole serious wear on tile fragment to produce eccentric, cause tile fragment to scrap, and then cause whole bearing to be scrapped; Two, pad is under bearing pin and tile fragment double action, and serious wear, causes pad to come off, and unit operation is produced to major safety risks; Three, when unit starting, due to tile fragment wearing and tearing, bearing pin is produced to larger impact force, cause bearing pin fracture, unit produces vibration, forces compressor emergency shutdown.

Model utility content

The bearing pin that the utility model is the existing gas turbine bearing of solution is larger to tile fragment wearing and tearing, and easy-rupturing, brings the problem of potential safety hazard, and then propose a kind of gas turbine bearing that adopts axle sleeve structure to unit.

The utility model is to address the above problem the technological scheme of taking to be: the utility model comprise bearing hold ring and a plurality of tile fragment, the utility model also comprises a plurality of tile fragment position limit pin shaft assemblies, described in each, tile fragment position-limited shaft assembly comprises tile fragment position-limited shaft and axle sleeve, and each tile fragment is arranged on bearing by a described tile fragment position limit pin shaft assembly respectively and holds on the madial wall of ring.

The beneficial effects of the utility model are: the utility model oil recovery axle sleeve structure, on the spacing bearing pin of tile fragment, be set with axle sleeve, and alleviated the impact of bearing pin to tile fragment, unit is moved stably; The utility model has been cancelled traditional pad, utilizes axle sleeve directly to adjust axial clearance, has eliminated the harm that pad comes off, and has guaranteed the safe operation of unit.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model, and Fig. 2 is the scheme of installation of bearing pin.

Embodiment

Embodiment one: present embodiment is described in conjunction with Fig. 1 and Fig. 2, described in present embodiment, a kind of gas turbine bearing that adopts axle sleeve structure comprises that bearing holds ring 1 and a plurality of tile fragment 2, present embodiment also comprises a plurality of tile fragment position limit pin shaft assemblies, described in each, tile fragment position-limited shaft assembly comprises tile fragment position-limited shaft 3 and axle sleeve 4, and each tile fragment 2 is arranged on bearing by a described tile fragment position limit pin shaft assembly respectively and holds on the madial wall of ring 1.

Embodiment two: in conjunction with Fig. 1 and Fig. 2, present embodiment is described, a kind of described in present embodiment to adopt each axle sleeve 4 of the gas turbine bearing of axle sleeve structure are axle sleeves 4 of being made by high-abrasive material.

The technique effect of present embodiment is: so arrange, make axle sleeve 4 more wear-resistant, extended the working life of axle sleeve 4.Other composition and annexation are identical with embodiment one.

Claims

1. a gas turbine bearing that adopts axle sleeve structure, it comprises that bearing holds ring (1) and a plurality of tile fragment (2), it is characterized in that: described gas turbine bearing also comprises a plurality of tile fragment position limit pin shaft assemblies, described in each, tile fragment position-limited shaft assembly comprises tile fragment position-limited shaft (3) and axle sleeve (4), and each tile fragment (2) is arranged on bearing by a described tile fragment position limit pin shaft assembly respectively and holds on the madial wall of ring (1).

2. a kind of gas turbine bearing that adopts axle sleeve structure according to claim 1, is characterized in that: each axle sleeve (4) is the axle sleeve (4) of being made by high-abrasive material.