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An assembly tooling for a low-pressure turbine of an engine

A low-pressure turbine and assembly tooling technology, applied in assembly machines, manufacturing tools, metal processing equipment, etc., can solve problems such as loss of bearings, improve positioning accuracy, facilitate operation, and solve mechanical collisions.

Active Publication Date: 2021-04-20
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problem that the bearings are easily damaged during the installation process of the low-pressure turbine and the core engine of the existing engine, the invention provides an assembly tool for the low-pressure turbine of the engine, which realizes the rapid assembly of the low-pressure turbine and the core engine, and solves the loss during the assembly process. bearing problem

Method used

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  • An assembly tooling for a low-pressure turbine of an engine
  • An assembly tooling for a low-pressure turbine of an engine
  • An assembly tooling for a low-pressure turbine of an engine

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Embodiment Construction

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings, which are explanations rather than limitations of the present invention.

[0048] refer to Figure 1-11 , an assembly tool for a low-pressure turbine of an engine, including a positioning guide tool 5, a traction tool 6 and a torque multiplier 9.

[0049] The positioning guide tool 5 is coaxially connected with the low-pressure turbine shaft of the low-pressure turbine 1, the traction tool 6 is installed on the fan rotor 4, and the positioning guide tool 5 passes through the core machine 3 and the axis of the fan rotor 4 and is connected to the torque multiplier 9.

[0050] The positioning guide tool 5 includes a positioning shaft 51 , a traction shaft 52 , an adjustment shaft 57 and an adjustment rod 58 .

[0051] The traction shaft 52 and the positioning shaft 51 are both hollow shafts, one end of the positioning shaft 51 is embedded in one end of the tracti...

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Abstract

The invention provides an assembly tool for a low-pressure turbine of an engine, which includes a positioning guide tool and a traction tool. The positioning guide tool is coaxially connected with the low-pressure turbine shaft. The shaft sleeve extends to the outside of the fan rotor. During the assembly process of the low-pressure turbine, torque is applied to the traction shaft externally. The traction shaft rotates synchronously with the connecting shaft sleeve. During the rotation of the fan rotor, the traction shaft is driven axially through threads. Move, so that the low-pressure turbine shaft has dual forces of rotation and axial movement, so that the cylindrical rollers of the bearings on the low-pressure turbine shaft are gradually fitted into the outer ring of the bearing during rotation, which solves the problem of cylindrical rollers in the existing assembly process. The problem of mechanical collision with the outer ring of the bearing.

Description

technical field [0001] The invention relates to the technical field of engine assembly, in particular to an assembly tool for an engine low-pressure turbine. Background technique [0002] The low-pressure turbine unit of the engine is a unit structure. The bearing inner ring, cage and bearing cylindrical roller of the four-point bearing of the engine are assembled on the low-pressure turbine shaft, which is a part of the low-pressure turbine unit; the bearing outer ring is assembled on the high-pressure turbine rotor. On the rear journal of the engine, it is part of the core engine unit. During assembly, each unit body is assembled horizontally, the low-pressure turbine unit body is horizontally assembled to the core machine unit body, the bearing cylindrical roller enters the bearing outer ring horizontally, and the gap between the bearing cylindrical roller outer diameter and the bearing inner ring is only 0.07mm. The length of the low-pressure turbine unit body is 1700mm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P21/00
CPCB23P21/002
Inventor 马涛黄健宋树林崔宝锋焦晓冉任远哲张栋胡伟
Owner AECC AVIATION POWER CO LTD
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