Complete machine stator coaxiality control standard determination method
A technology for controlling standards and determining methods, applied in the direction of comprehensive factory control, random CAD, instruments, etc., can solve problems such as large errors and inability to meet the actual needs of the project, achieve the effect of good assembly accuracy and avoid processing and assembly quality problems
Pending Publication Date: 2022-05-24
AECC SHENYANG ENGINE RES INST
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Problems solved by technology
[0006] The purpose of this application is to provide a method for determining the coaxiality control standard of the complete machine stator, so as to solve the problems caused by using the result of the extreme value method as the coaxiality control standard of the complete machine in the background technology, which is too loose and has large errors, which cannot meet the engineering requirements. question of actual needs
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[0022] In order to make the implementation purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application.
[0023] A method for determining the coaxiality control standard of a complete machine stator. Compared with the extreme value method with a large error, the present application adopts the method of statistics and probability to determine the coaxiality standard. The samples are sampled to obtain a more accurate coaxiality control standard.
[0024] like figure 1 shown, including the following steps:
[0025] Step S100, analyze and obtain the factors influencing the coaxiality of the whole machine due to the geometrical tolerance on each casing, and obtain the calculation method of the coaxiality of the whole machine;
[0026] The factors that influence beh...
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The invention relates to the field of stator coaxiality measurement, in particular to a complete machine stator coaxiality control standard determination method, which comprises the following steps: analyzing influence factors of form and location tolerances on each casing on the complete machine coaxiality as basic conditions of statistical analysis, and then analyzing probability distribution conforming to each form and location tolerance to determine the complete machine coaxiality according to probability distribution conforming to each form and location tolerance. According to the method, influence quantity values of all influence factors can be accurately calculated, then whole machine coaxiality calculation is carried out on multiple sets of machining results, statistical analysis is carried out on multiple sets of calculation results, probability distribution is observed, finally, the whole machine coaxiality detection control standard is obtained according to the qualified rate, the control standard better conforms to engineering practice, and the whole machine coaxiality detection accuracy is improved. The stator casing is assembled according to the control standard, so that better assembly precision can be obtained, and the processing and assembly quality problems are avoided.
Description
technical field [0001] The application belongs to the field of stator coaxiality measurement, and in particular relates to a method for determining a control standard for stator coaxiality of a complete machine. Background technique [0002] The coaxiality of the stator of the whole machine has an important influence on the vibration, clearance maintenance and performance of rotating mechanical devices such as aero-engines. The coaxiality of the stator of the whole machine needs to be guaranteed by the design and processing of the coaxiality of each casing. Therefore, in the design, the geometrical tolerances related to the coaxiality of each casing, such as radial runout, end runout and precision bolt position, etc. controlled. After the whole machine is assembled, it is necessary to detect and control the coaxiality of the whole machine according to the control standard of the coaxiality of the whole machine. [0003] The disadvantages of the current method for determini...
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IPC IPC(8): G06F30/17G06F30/20G01B21/24G06F111/08G06F111/10
CPCG06F30/17G06F30/20G01B21/24G06F2111/08G06F2111/10Y02P90/02
Inventor 王东洪昊然赵威田静韩君李其建
Owner AECC SHENYANG ENGINE RES INST