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Aviation engine's multi-joint blade throat diameter gauge

An aero-engine and throat diameter technology, applied in the direction of mechanical devices, mechanical measuring devices, measuring devices, etc., can solve the problems of easy scratches on the surface of the blades, and achieve the effect of ensuring the appearance quality and high detection efficiency

Inactive Publication Date: 2017-01-18
FALCON AEROTECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the invention provides a throat diameter gauge of multiple blades of an aero-engine, which can solve the technical problem that scratches are easily produced on the surface of the blades when the caliper measures the throat diameter of the multiple blades

Method used

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  • Aviation engine's multi-joint blade throat diameter gauge
  • Aviation engine's multi-joint blade throat diameter gauge
  • Aviation engine's multi-joint blade throat diameter gauge

Examples

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Embodiment Construction

[0017] Such as Figure 3~Figure 5 As shown, it includes a connecting rod 23, a through-end measuring block 21 and a stop-end measuring block 22; the two ends of the connecting rod 23 are symmetrically provided with slots; the through-end measuring block 21 and the stop-end measuring block 22 are annular and pass through The connector is rotatably supported in the slots 231, 232 at both ends of the connecting rod 23, the outer diameter of the through-end measuring block is equal to the lower limit of the throat diameter of the position to be measured, and the outer diameter of the end-stop measuring block is equal to the lower limit of the throat diameter of the position to be measured. The upper limit of the throat diameter of the point is equal. Specifically, the connecting piece is a pin, and the rod body of the pin is provided with an optical axis part and threaded parts on both sides of the optical axis part. The perforation in the annular center of the block 22 is in slid...

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Abstract

The invention provides an aviation engine's multi-joint blade throat diameter gauge, which solves the technical problem that when a caliper is used to measure the throat diameter of a multi-joint blade, the surface of the blade is prone to be scratched. The gauge comprises a connecting rod, a communication end measuring block and a stoppage end measuring block. The two ends of the connecting rod are symmetrically provided with slots. Both the communication end measuring block and the stoppage end measuring block are designed of an annular shape and are supported in the slots at two ends of the connecting rod in a rotary manner. The outer diameter of the communication end measuring block is equal to the lower limit of the throat diameter at a to-be-measured point. The outer diameter of the stoppage end measuring block is equal to the upper limit of the throat diameter at the to-be-measured point.

Description

technical field [0001] The invention relates to the field of detection devices for components of aero-engines, in particular to throat gauges for multi-blades of aero-engines. Background technique [0002] A multi-connected blade of an aero-engine has a structure such as figure 1 , figure 2 As shown, after the multi-connected blade 10 is processed and formed, it is necessary to detect the throat diameter of the adjacent blades. The detection of the throat diameter includes the following steps: First, it is necessary to draw a detection line on the blade according to the detection requirements, such as figure 1 In A-A, A1-A1, B-B, B1-B1, C-C, C1-C1, to mark the measurement points; then, measure the throat diameter, that is, the end arc surface of the exhaust edge of the blade 11 111 and the distance D between the blade back arc surface 121 of the adjacent blade 12 . Calipers are generally used as inspection tools for throat diameter measurement. When measuring, the calip...

Claims

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Application Information

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IPC IPC(8): G01B5/02
CPCG01B5/02
Inventor 李芳玲
Owner FALCON AEROTECH LTD
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