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A device for detecting the symmetry of the tenon and groove of a turbine disk

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

Active Publication Date: 2021-03-09
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • 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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  • A device for detecting the symmetry of the tenon and groove of a turbine disk
  • A device for detecting the symmetry of the tenon and groove of a turbine disk
  • A device for detecting the symmetry of the tenon and groove of a turbine disk

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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 through specific implementation manners in conjunction with the accompanying drawings.

[0018] Such as Figure 1-3 As shown, a turbine disk tenon and groove symmetry detection device includes a table base 1, a positioning block 3, and a lever 2. The positioning block 3 is fixed on the bottom of the table base 1 by slotted cylindrical head screws 4, and a shaft is fixed on the table base 1. The pin 8, the lever 2 and the shaft pin 8 are in clearance fit, and the gap is maintained at 0.005-0.01 mm, and the two sides of the lever 2 and the table seat 1 are kept at a gap of 0.005-0.01 mm. The lever 2 has a 90° rotation angle to realize the transmission of the measured value; positioning Block 3 has mutually perpendicular grooves, and the two ends of lever 2 rotate around pivot pin 8 in two grooves of p...

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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 aero-engine fir tree-shaped tenon and groove detection, and in particular relates to a turbine disk tenon and groove symmetry detection device. Background technique [0002] The aero-engine disc includes a wheel 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 blade after transfer 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. Therefore, there is an urgent need for an engine turbine disk tenon-groove symmetry detection device that is convenient, fast, and accurate. ...

Claims

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Application Information

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Patent Type & Authority Patents(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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