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Method for measuring bearing hole concentricity of axle-hang box of locomotive

A technology of coaxiality measurement and shaft holding box, which is applied in the direction of mechanical measuring devices, measuring devices, and mechanical devices, etc., can solve the problem that the measurement method cannot objectively reflect the actual situation, and meet the requirements of quality control and reduce misjudgment. Effect

Active Publication Date: 2010-01-13
CRRC QISHUYAN CO LTD
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Problems solved by technology

[0003] In order to overcome the deficiency that the existing measuring method cannot objectively reflect the actual situation, the present invention provides a method for measuring the coaxiality of the bearing hole of the axle holding box of the locomotive

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  • Method for measuring bearing hole concentricity of axle-hang box of locomotive

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Embodiment Construction

[0012] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0013] like figure 1 It is a structural schematic diagram of the present invention, a method for measuring the coaxiality of the bearing hole of the axle holding box of a locomotive, comprising the following steps: 1. During the three-coordinate measurement process of the coaxiality of the bearing hole of the axle holding box of the locomotive, measure the F installation plane and the E The installation plane, take the intersection line L of the F surface and the E surface as the direction reference of the coaxiality measurement;

[0014] 2. Measure three cross-sectional circles on bearing holes 1 and 2 of A and B respectiv...

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Abstract

The invention relates to the technical field of axle-hang boxes of locomotives, in particular to a method for measuring bearing hole concentricity of an axle-hang box of a locomotive, comprising the following steps: 1. in the three-dimensional measuring process of the bearing hole concentricity of the axle-hang box of the locomotive, measuring an F mounting plane and an E mounting plane, and using an intersecting line L of the F plane and the E plane as a directional standard for measuring the concentricity; 2. measuring three section circles A1, A2, A3 and B1, B2, B3 respectively on bearing holes A and B; 3. calculating the concentricity value of B1, B2 and B3 to A1, A2 and A3 in an L direction of the intersecting line L of the F and E planes; and 4. acquiring the maximum concentricity, i.e. the measuring value of the bearing hole concentricity of axle-hang box of the locomotive. The measuring method can objectively and accurately reflect the quality condition of the axle-hang box of the locomotive, satisfy the quality control requirement of products and reduce erroneous judgment as much as possible.

Description

technical field [0001] The invention relates to the technical field of a locomotive axle box, in particular to a method for measuring the coaxiality of a bearing hole of a locomotive axle box. Background technique [0002] In the current three-coordinate detection, there are generally two methods for measuring the coaxiality of the bearing hole of the locomotive axle holding box: one is to evaluate the axis of the B bearing hole to the axis of the A hole in the form of technical requirements based on the axis of the A bearing hole. Coaxiality, this kind of evaluation method, because the measurement reference axis needs to be extended by calculation, the error will be linearly enlarged during the calculation process, and most of the evaluation results will be out of tolerance; the second measurement is to establish a common line through the centers of A and B bearing holes. After the axis is used as a reference, then evaluate the coaxiality of the A and B bearing holes to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/252
Inventor 凡小飞
Owner CRRC QISHUYAN CO LTD
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