Angular deviation inspection tool for semi-closed cylindrical area

By designing a semi-closed cylindrical area angular deviation inspection tool, using a diaphragm coupling adapter plate and a micrometer fixing tool, combined with an inductive micrometer and a mechanical dial meter, the problem of difficult to measure the angular deviation of the diaphragm coupling in a narrow or semi-closed environment is solved, and the convenience of high-precision measurement without disassembling the power shaft sleeve or fixed engine is achieved.

CN223037080UActive Publication Date: 2025-06-27CHANGHE AIRCRAFT INDUSTRIES CORPORATION
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Patent Information

Application Number
CN202422257923.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-14
Publication Date
2025-06-27
Estimated Expiration
2034-09-14

AI Technical Summary

Technical Problem

The prior art is difficult to measure the angle deviation of the coupling of the power transmission shaft diaphragm in a narrow or semi-enclosed environment, and it requires more disassembly and assembly.

Method used

A semi-closed cylindrical area angular deviation inspection tool is designed, including a diaphragm coupling adapter plate and a micrometer fixing tool, using a hexagonal interface and hexagon head bolt connection, combined with an inductive micrometer and a mechanical dial meter to achieve accurate measurement in a semi-closed environment.

Benefits of technology

On-machine measurements can be performed without removing the power shaft sleeve or fixed engine, reducing space, time and equipment limitations during the measurement process and improving the ease and accuracy of measurement.

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Abstract

The utility model belongs to the field of helicopter transmission system angular phase deviation measurement, and belongs to a semi-closed cylindrical area angular deviation inspection tool. The inspection tool comprises a diaphragm coupling adapter plate and a micrometer fixing tool. The diaphragm coupling adapter plate is provided with a fixed interface connected with the measuring plane; the micrometer fixing tool is in a hoop form and is mounted on the cylindrical component; and the micrometer fixing tool is provided with a micrometer interface.
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Description

Technical Field

[0001] The utility model belongs to the field of coaxiality measurement of helicopter transmission systems, and relates to an angular deviation inspection tool for a semi-closed cylindrical area. Background Art

[0002] In the prior art, a mechanical micrometer supplemented by a gauge stand or a laser measuring device is used for measurement. The tools and equipment used are large in volume and can complete the measurement work in an open environment, but it is difficult to complete the predetermined measurement work in some narrow or semi-closed environments. Summary of the Utility Model

[0003] Purpose of the utility model: To research a tool for measuring the angular deviation of the diaphragm coupling of the power transmission shaft in a semi-closed shaft sleeve, which can not only ensure the measurement accuracy but also reduce the disassembly and assembly workload.

[0004] Technical Solution

[0005] Provide an angular deviation inspection tool for a semi-closed cylindrical area, including: a diaphragm coupling adapter plate and a micrometer fixing tool;

[0006] A fixed interface connected to the measurement plane is arranged on the diaphragm coupling adapter plate;

[0007] The micrometer fixing tool is in the form of a clamp and is installed on a cylindrical component; a micrometer interface is arranged on the micrometer fixing tool.

[0008] The micrometer includes an inductive micrometer and a mechanical micrometer.

[0009] The fixed interface is a hexagonal interface and is connected to the measurement plane through a hexagon head bolt.

[0010] The diaphragm coupling adapter plate is a metal plate or a PVC plate.

[0011] The micrometer fixing tool is a plastic ring.

[0012] The calculation formula for the angular deviation x of the cylindrical component is:

[0013] x = arctang(a / 2r);

[0014] a is the data measured by the micrometer; r is the rotation radius of the micrometer interface.

[0015] Advantageous Effects

[0016] The utility model can perform on-board measurement without disassembling the power shaft sleeve and additionally fixing the engine, is not restricted by on-board space, time, equipment, etc., and can perform measurement anytime and anywhere, which is convenient and fast. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a diaphragm coupling adapter plate.

[0018] Figure 2 It is a schematic structural diagram of a micrometer fixing tool. Specific embodiments

[0019] The present utility model provides a tool for checking the angular deviation of a semi-closed cylindrical area, as Figure 1-2 shown, including: a diaphragm coupling adapter plate 1 and a micrometer fixing tool 2;

[0020] The diaphragm coupling adapter plate is provided with a fixed interface connected to the measurement plane;

[0021] The micrometer fixing tool is in the form of a clamp and has a bolt-fixed fastening interface 4, which is installed on a cylindrical component; a micrometer interface 3 is provided on the micrometer fixing tool.

[0022] The micrometer includes an inductive micrometer and a mechanical dial indicator.

[0023] The fixed interface is a hexagonal interface and is connected to the measurement plane through a hexagon head bolt.

[0024] The diaphragm coupling adapter plate is a metal plate or a PVC plate.

[0025] The micrometer fixing tool is a plastic ring.

[0026] The calculation formula for the angular deviation x of the cylindrical component is:

[0027] x = arctang(a / 2r);

[0028] a is the data measured by the micrometer; r is the rotation radius of the micrometer interface.

[0029] The measurement work of the present utility model using an inductive micrometer:

[0030] 1. Install and fix the diaphragm coupling adapter plate on the head of the diaphragm coupling fixing bolt;

[0031] 2. Fix the inductive micrometer fixing tool on the transmission shaft;

[0032] 3. Rotate the power transmission shaft and record the data of the inductive micrometer.

[0033] Calculation of angular deviation:

[0034] Record the measured data as a, the rotation radius of the inductive micrometer interface of the probe of the inductive micrometer fixing tool is r, and the angular deviation is x.

[0035] x = arctang(a / 2r).

Claims

1. A semi-enclosed cylindrical area angular deviation inspection tool, characterized in that: include: Diaphragm coupling adapter plate (1) and micrometer fixing tool (2); A fixed interface connected to the measuring plane is arranged on the diaphragm coupling adapter plate (1); The micrometer fixing tool (2) is in the form of a clamp and is installed on the cylindrical component; the micrometer fixing tool (2) is provided with a micrometer interface.

2. The inspection tool according to claim 1, characterized in that: Micrometers include inductive micrometers and mechanical micrometers.

3. The inspection tool according to claim 1, characterized in that: The fixing interface is a hexagonal interface, which is connected to the measuring plane by a hexagonal bolt.

4. The inspection tool according to claim 1, characterized in that: The diaphragm coupling adapter plate (1) is a metal plate or a PVC plate.

5. The inspection tool according to claim 1, characterized in that: The micrometer fixing tool (2) is a plastic ring.

6. The inspection tool according to claim 1, characterized in that: The calculation formula for the angular deviation x of a cylindrical component is: x = arctang(a / 2r); a is the data measured by the micrometer; r is the rotation radius of the micrometer interface.