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GB/T 39545.1-2022: Design and selection of components for enclosed gear drives - Part 1: Common components
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Design and selection of components for enclosed gear drives - Part 1: Common components
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GB/T 39545.1-2022
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Basic data | Standard ID | GB/T 39545.1-2022 (GB/T39545.1-2022) | | Description (Translated English) | Design and selection of components for enclosed gear drives - Part 1: Common components | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J19 | | Word Count Estimation | 79,779 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 39545.1-2022: Design and selection of components for enclosed gear drives - Part 1: Common components
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Design and selection of components for enclosed gear drives - Part 1.Common components
ICS 21.120
CCSJ19
National Standards of People's Republic of China
Component Design and Selection of Closed Gear Transmission
Part 1.General Components
Part 1.Commoncomponents
Published on 2022-07-11
2023-02-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions and Symbols 2
4 Design calculation conditions 6
4.1 Determination principle of rated power value 6
4.2 Load spectrum analysis method 7
4.3 Conventional transient peak load conditions 7
5 axis 7
5.1 General 7
5.2 Basic loads and stresses on shafts 7
5.3 Preliminary design method for shafts 8
5.4 Generic design method for shafts 10
5.5 Shaft extension cantilever load 25
5.6 Materials 25
5.7 Deformation 26
6-Key and Keyed Interference Fit Connections 31
6.1 Overview 31
6.2 Dimensions and tolerances 32
6.3 Scope 32
6.4 Allowable stress 32
6.5 Permissible torque 34
6.6 Keyed interference fit connections 34
6.7 Reverse loads 35
7 Bearing 35
7.1 Overview 35
7.2 Bearing types 35
7.3 Rolling bearings 35
7.4 Sliding bearings 38
8 Threaded fasteners38
8.1 Design basis and applicable conditions 38
8.2 Fastener Preload 39
8.3 Fastener torque 40
8.4 Allowable tensile stress of fasteners 40
8.5 Tensile stress of fasteners 41
8.6 Threaded engagement length 41
8.7 Fastener locking 41
9 Box 42
10 Overrunning clutch 42
10.1 Functions and working modes 42
10.2 Selection 43
10.3 Installation 43
10.4 Lubrication 43
11 Shrink disc 43
12 Coupling 44
12.1 Overview 44
12.2 Elastomeric Couplings 44
12.3 Matching and Association of Components 44
13 Lubrication 47
13.1 Overview and Precautions 47
13.2 Selection of lubricants 47
13.3 Lubrication method 51
13.4 Lubrication maintenance 53
14 Motor 55
14.1 Motor types 55
14.2 Motor selection 55
15 Other parts 56
15.1 Gasket 56
15.2 Gasket 56
15.3 Oil seal 56
15.4 Breather cap 56
15.5 Expansion chamber 56
15.6 Oil level indicator 56
15.7 Bearing spacers 56
15.8 Oil guard 57
15.9 Dowels and pins 57
15.10 Spacer 57
15.11 Seal retainer 57
Appendix A (Informative) Driveshaft Design Example 58
Appendix B (Informative) Example of Radial Deformation Calculation of Double-Pivot Step Shaft 64
Appendix C (Informative) Calculation example of keyed interference fit connection 68
Appendix D (normative) Basic performance requirements for lubricating oils 70
Reference 73
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
This document is part 1 of GB/T 39545 "Design and selection of components for closed gear transmissions". GB/T 39545 has
The following sections were published.
--- Part 1.General spare parts;
--- Part 3.Keyless fitting connections of shafts and hubs.
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China Machinery Industry Federation.
This document is under the jurisdiction of the National Reducer Standardization Technical Committee (SAC/TC357).
This document is drafted by. Jiangsu Tailong Reducer Co., Ltd., Tianjin Huajian Tianheng Transmission Co., Ltd., Jiangsu Golden Elephant Transmission Co., Ltd.
Power Equipment Co., Ltd., Taiyuan University of Technology, Chongqing University, Nanjing University of Aeronautics and Astronautics, Zhengzhou Machinery Research Institute Co., Ltd., World Transmission
Dynamic (Tianjin) Co., Ltd., Beijing Xinxing Overrunning Clutch Co., Ltd., Zhengzhou University.
The main drafters of this document. Li Zhaogang, Dong Jianfeng, Zhang Shaoming, Kong Xia, Wang Tie, Liu Shijun, Wei Jing, Zhu Rupeng, Zhao Ying, Liao Mingjian,
Bao Heyun, Lu Fengxia, Wu Xiaoling, Sun Hongli, Zhang Ruiliang, Wu Zhifei, Yin Ping, Cai Yunlong, Fu Yong, Kong Qingtang, Zhu Zicheng.
Introduction
GB/T 39545 "Parts Design and Selection of Closed Gear Transmission" is a set of gear transmissions suitable for different types of industrial use.
The basic standard for the design and selection of device components, which aims to standardize the design and
The criteria for the selection of methods are proposed to consist of 5 parts.
--- Part 1.General spare parts.
--- Part 2.Keyed connections of shafts and hubs.
--- Part 3.Keyless fitting connections of shafts and hubs.
--- Part 4.Choice of balance grades for elastic couplings.
--- Part 5.Static and dynamic characteristics of elastic couplings.
These standards have the following main characteristics compared to common standards.
---According to the requirements of the application characteristics of the closed gear transmission, the stress calculation of all parts is carried out on the basis of the general design
In addition to considering fatigue failure, the strength calculation also considers the influence of peak load overload damage;
--- Give the focus of the design and selection of these parts derived from practical experience;
--- It is the first standard formulated in China, which further supplements and improves the existing standards;
---Complete the standards for couplings and connections of important related parts from the perspective of the system;
--- Covers all major components of closed gear transmissions; the relevant methods in the standard are also applicable to non-closed gear transmissions
Design and selection of components.
GB/T 39545 provides a set of relatively complete and practical design and selection methods for the design of closed gear transmission parts in my country.
The guidelines and guidelines can effectively promote the improvement of the design and manufacturing level of closed gear transmission in my country.
Component Design and Selection of Closed Gear Transmission
Part 1.General Components
1 Scope
This document specifies terms, definitions and symbols for the design and selection of general components for closed gear transmissions, design calculation conditions, shafts, keys
and keyed interference fit connections, bearings, threaded fasteners, housings, overrunning clutches, shrink discs, couplings, lubrication, motors and other components
Design and selection.
This document applies to the general component design and
choose.
The formulas and values in this document are applicable to the design and selection of general components for conventional industrial enclosed gear transmissions. When higher settings are required
When measuring accuracy, design deviations can be corrected by combining experience, experiments and more professional analysis. This document is for experienced designers, optional
Take appropriate values and know the effects of the following. lubrication, deformation, manufacturing errors, material heat treatment, residual stress and system vibration, etc.
There are special standards for the design of gears, worms and other components, and this document will not be repeated.
This document does not apply when transmissions are subjected to vibrational conditions that may lead to unpredictable fatigue failures.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB/T 265 Petroleum Products Kinematic Viscosity Determination Method and Dynamic Viscosity Calculation Method
GB/T 1095 Sectional dimension of flat key keyway
GB/T 1096 ordinary flat keys
GB/T 1098 Sectional dimension of semicircular keyway
GB/T 1099.1 Ordinary semicircular keys
GB/T 1566 Sectional dimension of thin flat keyway
GB/T 1567 Thin Flat Keys
GB/T 2541 Petroleum product viscosity index calculation table
GB/T 3141 ISO Viscosity Classification of Industrial Liquid Lubricants
GB/T 3480.5-2021 Calculation of bearing capacity of spur and helical gears - Part 5.Strength and quality of materials
GB/T 3536 Determination of flash point and fire point of petroleum products Cleveland open cup method
GB/T 5096 Petroleum Products Copper Corrosion Test Method
GB/T 6391-2010 Rolling bearing dynamic load rating and rating life
GB/T 11133-2015 Determination of Water Content in Petroleum Products, Lubricants and Additives Karl Fischer Coulometric Titration
GB/T 11143 Anti-rust performance test method of mineral oil with inhibitor in the presence of water
GB/T 12350 Safety Requirements for Small Power Motors
GB/T 12579 Determination method for foam characteristics of lubricating oil
GB/T 12581 Determination of Oxidation Characteristics of Mineral Oil with Inhibitors
GB/T 14039 Hydraulic Transmission Fluid Solid Particle Pollution Degree Code
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