Assembling method for power turbine without adjustment of axial gap between rotor and stator
A power turbine and axial clearance technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of undesigned adjustment pads, difficulty in ensuring the axial clearance requirements of the rotor and stator, and inability to achieve horizontal assembly. Effect of Axial Clearance Requirements
Active Publication Date: 2016-04-06
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology
There is a thrust bearing between the rotor and the stator, the inner ring mounting surface between the rotor and the thrust bearing inner ring and the outer ring mounting surface between the stator and the thrust bearing outer ring are not designed with adjusting pads, resulting in the rotor and the thrust bearing outer ring. Stator axial clearan
Method used
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Embodiment Construction
[0026] Such as Figure 1~10 As shown, a method for assembling a power turbine without adjusting the axial gap between the rotor and the stator includes the following steps:
[0027] 1. Calculate the axial distance between the rotor 1 and the stator: measure the length Y from the front end of the rotor 1 to the inner ring mounting surface 7 between the rotor 1 and the inner ring of the thrust bearing 5, and measure the front end of the transition section assembly 2 to the stator and thrust For the length X of the outer ring mounting surface 8 between the outer rings of the bearing 5, calculate the difference Z=XY, and Z is the axial distance between the rotor 1 and the stator;
[0028] 2. Installation of tooling: Place the reversible assembly base 11 in a vertical position, install the positioning shaft 13 and the adjustment shaft 12 in the center of the base 11, the positioning shaft 13 and the adjustment shaft 12 are fixedly connected together, and the adjustment shaft 12 Threade...
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The invention relates to an assembling method for a power turbine, in particular to an assembling method for a power turbine without adjustment of an axial gap between a rotor and a stator. According to the technical scheme, the assembling method for the power turbine without adjustment of the axial gap between the rotor and the stator comprises the following steps that firstly, the axial distance between the rotor and the stator is calculated; secondly, tool installing is carried out; thirdly, a transition section assembly is installed; fourthly, the rotor is installed; fifthly, a split casing assembly is installed; sixthly, a rear bearing casing is installed; seventhly, a thrust bearing and other rear bearing related assemblies are installed; and eighthly, assembling is carried out. By means of the assembling method for the power turbine without adjustment of the axial gap between the rotor and the stator, assembling of the power turbine is achieved, and it is effectively guaranteed that the axial gap between the rotor and the stator meets the requirement.
Description
Technical field [0001] The invention relates to an assembling method of a power turbine, in particular to an assembling method of a power turbine with no adjustment of the axial gap between a rotor and a stator. Background technique [0002] As attached figure 1 As shown, a power turbine includes a rotor and a stator. The stator includes a transition section assembly, a counter-start box assembly and a rear bearing casing. The counter-opening box assembly has a split structure, and the transition section assembly and the rear bearing casing are integral rings. structure. There is a thrust bearing between the rotor and the stator. The inner ring mounting surface between the rotor and the inner ring of the thrust bearing and the outer ring mounting surface between the stator and the outer ring of the thrust bearing are not designed with adjusting pads, which causes the rotor to contact The stator axial clearance cannot be adjusted. When assembling, the inner ring mounting surface...
Claims
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Login to View More IPC IPC(8): B23P19/00
CPCB23P19/00
Inventor 孙晓超李景波孙远伟宋文超肖印波
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION