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Turbine disk tongue-and-groove symmetry detection device

A detection device, turbine disk technology, applied in the direction of angle/taper measurement, etc., can solve the problems of inconvenient operation, low efficiency, long detection time, etc., and achieve the effect of improving production efficiency, high accuracy and simple operation

Active Publication Date: 2020-02-21
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The aero-engine disc includes a rim, an auxiliary plate, a wheel hub, and a sealing grate. There is a tenon and groove for installing blades on the wheel hub. The shape, size and position accuracy of the tenon and groove are related to the symmetry of the blades after they are transferred and the rotation during the test run. Stability, but at present, the projection detection method is used for the symmetry of the tenon and groove of the engine turbine disc, which is very inconvenient to operate, and the detection time is long, the efficiency is not high, and it cannot be detected on the machine tool

Method used

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  • Turbine disk tongue-and-groove symmetry detection device
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  • Turbine disk tongue-and-groove symmetry detection device

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Embodiment Construction

[0017] In order to better explain the present invention and facilitate understanding, the technical solutions and effects of the present invention will be described in detail below with reference to the accompanying drawings and through specific embodiments.

[0018] Such as Figure 1-3 As shown, a device for detecting symmetry of the tongue and groove of a turbine disc includes a meter base 1, a positioning block 3, and a lever 2. The positioning block 3 is fixed to the bottom of the meter base 1 by a slotted cylinder head screw 4, and a shaft is fixed on the meter base 1. The pin 8, the lever 2 and the shaft pin 8 are in clearance fit, keeping the gap 0.005~0.01mm, the two sides of the lever 2 and the watch base 1 keep the gap 0.005~0.01mm, the lever 2 has a 90° rotation angle to realize the measurement value transmission; positioning; The block 3 is provided with grooves that are perpendicular to each other. The two ends of the lever 2 respectively rotate around the shaft pin ...

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Abstract

The invention relates to a turbine disk tongue-and-groove symmetry detection device. The turbine disk tongue-and-groove symmetry detection device includes a gauge stand, a positioning block and a lever. The positioning block is fixed to the bottom of the gauge stand through a screw, and a shaft pin is fixed to the gauge stand. The lever is in clearance with the shaft pin. The lower part of the positioning block is composed of two surfaces at a certain angle, the end surface on one side of the measuring end of the lever is a supporting surface which is kept in the same vertical direction with the center of the shaft pin, and the other inclined surface is a positioning surface which is attached to a tongue-and-groove degree surface. The gauge stand is provided with a through hole in the vertical direction, and a bushing is arranged in the through hole for placing a dial gauge. A threaded hole perpendicular to the through hole is formed in the side surface of the gauge stand, and the dialgauge is clamped by knurled cylindrical set screws. A counterbore hole built-in spring is installed on the lower part of the gauge stand to ensure that the lever is always in contact with a measuringsurface in the measurement process. According to the turbine disk tongue-and-groove symmetry detection device, the manufacturing difficulty and cost of tools are reduced, the structure is simple andthe use is convenient, and human errors can be reduced.

Description

Technical field [0001] The invention belongs to the technical field of fir tree-shaped tongue and groove detection for aeroengines, and in particular relates to a device for detecting symmetry of the tongue and groove of a turbine disk. Background technique [0002] The aero engine disc includes a wheel flange, auxiliary plate, hub, and sealing grate teeth. On the hub, there is a tongue and groove for installing the blade. The shape, size and position accuracy of the tongue and groove are related to the symmetry of the blade after transfer and the rotation during the test run. Stability, but the current projection detection method is used to detect the symmetry of the engine turbine disk tongue and groove. The operation is very inconvenient, and the detection time is long, the efficiency is not high, and it cannot be detected on the machine tool. Therefore, there is an urgent need for a device for detecting the symmetry of the tongue and groove of an engine turbine disk that is c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/25
CPCG01B5/25
Inventor 唐晓东赵丹杨子英郑松陈佳慧
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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