Replacement method of cracked lubricating oil pipe supporting casing
A replacement method and oil pipe technology are applied in the field of replacement of a cracked oil pipe supporting a casing, which can solve problems such as cracks, and achieve the effects of broad application prospects, cost saving, huge economic value and social value.
Active Publication Date: 2018-09-14
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology
The argon arc welding between the oil supply pipe and the pipe joint that supplies oil to the fulcrum, if the welding itself has defects, and the wall of the oil supply pipe is thin, and the end protrudes out of the turbine support for a long time without support, it will be damaged after being subjected to external force cause cracks
Method used
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Embodiment 1
[0037] A method for replacing cracked lubricating oil pipes supporting casings. Argon arc welding is usually used between the oil supply pipes and pipe joints that supply oil to the fulcrum of the turbine support in the engine load-bearing system. If the welding itself has defects and the oil supply The pipe wall is thin, and the end protrudes out of the turbine support for a long time without support, and cracks will be caused after being subjected to external force; therefore, it needs to be replaced; the replacement method of the cracked lubricating oil pipe of the supporting casing requires the following contents in sequence:
[0038] First, cut and remove the cracked lubricating oil pipe A1 and lubricating oil pipe B3;
[0039] Then put the newly matched lubricating oil pipe on the additional bushing 6 and put it into the support plate 5 of the supporting casing 9;
[0040] Install the pipe joint A2 on the lubricating oil pipe A1 and install the pipe joint B4 on the lubri...
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The invention relates to a replacement method of bearing casing crack lubricating oil pipes. The replacement method comprises the steps that firstly, the lubricating oil pipes with cracks are cut off; then new matched lubricating oil pipes are sleeved with external bushes (6) and then placed in supporting plates (5) of a bearing casing (9); pipe joint nozzles A (2) are mounted on the lubricating oil pipes A (1), or / and pipe joint nozzles B (4) are mounted on the lubricating oil pipes B (3); rods of tools A (11) are inserted into the corresponding lubricating oil pipes and fixed; the pipe joint nozzles are subjected to positioned welding to the lubricating oil pipes corresponding to the pipe joint nozzles through argon arc welding; and the tools A (11) are demounted; and the bearing casing (9) is connected to a pressing device, the other ends of the lubricating oil pipes A (1) or the lubricating oil pipes B (3) are blocked, equipment is adjusted, and afterward disposal is carried out. The replacement method is economical, efficient and low in cost and has expectable great economic value and social value.
Description
technical field [0001] The invention relates to the field of technical solution design and application of a supporting case in the field of engine repair to restore the use function of the entire component by replacing a cracked lubricating oil pipe, and in particular provides a replacement method for a supporting case cracked lubricating oil pipe. Background technique [0002] The turbine support is a part of the engine load-bearing system. The rear fulcrum bearing is installed on the bearing seat of the turbine support, and its radial force is transmitted to the turbine support and then transmitted to the aircraft by the rear suspension point on the turbine support. The argon arc welding between the oil supply pipe and the pipe joint that supplies oil to the fulcrum, if the welding itself has defects, and the wall of the oil supply pipe is thin, and the end protrudes out of the turbine support for a long time without support, it will be damaged after being subjected to exte...
Claims
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IPC IPC(8): B23P13/02
CPCB23P13/02
Inventor 齐歆霞任武王晓梅尚小丽孙延亮
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION