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Gear precision grade design method based on ontology

A technology of precision grades and gears, applied in the field of stage design, can solve the problems of difficult and intelligent selection of gear precision grades, and achieve the effect of ensuring portability and scalability, and clear hierarchical relationships

Inactive Publication Date: 2020-01-14
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by this invention is that the selection of existing gear precision grades is difficult to be intelligent, and a method for automatic selection of gear precision grades based on the body is proposed

Method used

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  • Gear precision grade design method based on ontology
  • Gear precision grade design method based on ontology
  • Gear precision grade design method based on ontology

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Embodiment Construction

[0015] In the following, combined with the accompanying drawings, take a pair of spur gear pairs in a general reducer as an example, where the modulus m=3mm, the number of teeth z1=32, z2=96, the tooth width b=20mm, the bearing span is 85mm, and the speed n1=1280r / min, the gearbox is lubricated by oil injection, and the production conditions are small batch production. The technical solution of the present invention is further described in detail through specific examples. Such as:

[0016] Step A. Construct the corresponding ontology knowledge base according to the domain knowledge framework of gear precision grade design, and the attribute relationship between classes in the ontology knowledge base provides a consistent description for the domain knowledge of gear precision grade design. The categories in the ontology knowledge base include pitch circle diameter, standard tolerance class, tolerance zone, reference system fit, fit tolerance clearance, modulus, pitch limit de...

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Abstract

The invention discloses a gear precision grade design method based on ontology rule description. TAn automatic gear precision grade generation method based on ontology rule description mainly solves the problem that existing gear precision grade selection is difficult to intelligentize. An assembly model and corresponding judgment rules are constructed according to a knowledge framework in the gear precision grade design field, so that automatic reasoning is carried out on the gear precision grade through a JESS reasoning engine, and the precision grade of the gear is judged according to different gears, the application range of the gear, different working conditions and the like. According to the method, the hierarchical relationship of knowledge in the gear precision grade design field is utilized, so that the gear precision grade information is structured, the hierarchical relationship of precision grade design is clearer and better understood by a computer, and a feasible method isprovided for completing intelligence of gear precision grade design.

Description

technical field [0001] The invention belongs to the technical field of computer-aided tolerance design (CAT), and in particular relates to a gear precision grade design method based on body rule description. Background technique [0002] Gear is the basic transmission part of mechanical transmission, and its function is to transmit motion and power. In order to ensure the quality of gear transmission, meet certain requirements for use, and realize the interchangeability of gear transmission, it is necessary to carry out the accuracy of gear transmission motion, the stability of gear transmission, the uniformity of gear load distribution and the backlash of gear pairs. Control, put forward the corresponding requirements, and thus put forward the concept of gear precision grade design. Most of the existing gear accuracy grade design is for individual cases. Due to the large number of accuracy evaluation indicators, there are a large number of table lookups, numerical calculat...

Claims

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Application Information

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IPC IPC(8): G06F30/17G06F16/2455G06F16/36
CPCG06F16/24564G06F16/367
Inventor 黄美发江艳燕唐哲敏
Owner GUILIN UNIV OF ELECTRONIC TECH