GB/T 1972.1-2023 English PDF

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GB/T 1972.1-2023: Disc springs - Part 1: Calculation
Status: Valid

GB/T 1972.1: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 1972.1-2023	599	Add to Cart	5 days	Disc springs - Part 1: Calculation	Valid
GB/T 1972-2005	1279	Add to Cart	6 days	Disc spring	Obsolete
GB/T 1972-1992	RFQ	ASK	6 days	Disc spring	Obsolete

Similar standards

GB/T 12642   GB 11291.1   GB/T 1239.2   GB/T 1972.2   GB/T 1805   GB/T 1973.1   

Basic data

Standard ID: GB/T 1972.1-2023 (GB/T1972.1-2023)
Description (Translated English): Disc springs - Part 1: Calculation
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J26
Classification of International Standard: 21.160
Word Count Estimation: 29,294
Date of Issue: 2023-05-23
Date of Implementation: 2023-12-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 1972.1-2023: Disc springs - Part 1: Calculation

---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.
ICS 21:160 CCSJ26 National Standards of People's Republic of China Disc Springs Part 1: Calculations Discspring-Part 1:Calculation (ISO 19690-1:2017, MOD) Released on 2023-05-23 2023-12-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Symbols, parameter names and units 1 5 Structural type, grouping and dimension series 3 5:1 Structure type 3 5:2 Disc spring grouping 4 5:3 Dimension series 4 6 Single Disc Spring Calculation 4 6:1 Overview 4 6:2 Detection load 4 6:3 Coefficients in calculations4 6:4 Calculation of Disc Spring Load, Calculation Stress, Disc Spring Stiffness and Disc Spring Deformation Energy 5 7 Spring characteristics 6 7:1 Spring characteristics of a single disc spring 6 7:2 Spring characteristics of combined disc springs 8 8 Load classification, allowable stress 11 8:1 Load classification 11 8:2 Allowable stress under static load 11 8:3 Range of allowable stress under dynamic load 11 Appendix A (Informative) Calculation Example 13 Appendix B (Informative) Other Combined Disc Springs 19 Appendix C (informative) The influence of friction force on spring characteristics 20 Appendix D (informative) Common materials for disc springs 22 Reference 24

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 for Standardization Documents" drafting: This document is Part 1 of GB/T 1972 "Disc Springs": GB/T 1972 has issued the following parts: --- Part 1: Calculation; --- Part 2: Technical conditions: This document is modified to adopt ISO 19690-1:2017 "Disc Springs Part 1: Calculation": Compared with ISO 19690-1:2017, this document has made the following structural adjustments: --- 6:3 and 6:4:1 of this document correspond to 6:3 of ISO 19690-1:2017; --- 6:4:2 of this document corresponds to 6:4 of ISO 19690-1:2017; --- 6:4:3 of this document corresponds to 6:5 of ISO 19690-1:2017; --- 6:4:4 of this document corresponds to 6:6 of ISO 19690-1:2017; --- 6:4:5 of this document corresponds to 6:7 of ISO 19690-1:2017; --- 8:1 of this document corresponds to 9:1 and 9:2 of ISO 19690-1:2017; --- 8:2 and 8:3 of this document correspond to Chapter 8 of ISO 19690-1:2017: The technical differences between this document and ISO 19690-1:2017 and their reasons are as follows: --- Replaced ISO 26909 (see Chapter 3) with the normatively quoted GB/T 1805 to adapt to the technical conditions of our country; --- Deleted the reference to ISO 16249 (see Chapter 4); --- Added the load calculation formula (9) and formula (11) of the disc spring during flattening (see 6:4:2), because the computer-aided calculation method is not used When calculating, the flattened load will be used; --- Changed Figure 3 (see 7:1:2), which is more in line with the actual situation in our country; ---Changed the value of h0/t of the single disc spring (see 7:2:1) to avoid ambiguity when selecting the C series disc spring (h0/t≈1:30); --- Changed the allowable stress requirements for static loads, and added a reference to the normative reference file GB/T 1222 (see 8:2): The following editorial changes have been made to this document: --- Modified the title of Figure 1 (see 5:1); --- Put the normative reference document GB/T 1972:2-2023 "Disc Spring Part 2: Technical Conditions" into the reference; ---In 8:3:2, three examples about the key positions of disc spring fatigue damage have been added; --- Increased Appendix A (informative) calculation examples; --- Added Appendix B (informative) other combined disc springs; --- Increased the influence of appendix C (informative) friction on spring characteristics; --- Added Appendix D (informative) commonly used materials for disc springs: Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the National Spring Standardization Technical Committee (SAC/TC235): This document is drafted by: Shanghai Nuclear Engineering Disc Spring Manufacturing Co:, Ltd:, China Machine Research Institute of Standard Technology (Beijing) Co:, Ltd:, Yangzhou Hewei Disc Spring Manufacturing Co:, Ltd:, Yangzhou Spring Co:, Ltd:, Langfang Shuangfei Disc Spring Co:, Ltd:, Yangzhou Hengli Disc Spring Manufacturing Co:, Ltd: Company, Yangzhou Lanyang Spring Manufacturing Co:, Ltd:, Yangzhou Zhongdie Spring Manufacturing Co:, Ltd:, Jiangsu Sanzhong Elastic Technology Co:, Ltd:, Changzhou Ziqiang Metal Machinery Co:, Ltd:, Kern-Liebers (Taicang) Co:, Ltd:, Xi'an Hangguang Elastic Mold Device Co:, Ltd: The main drafters of this document: Shen Zijian, Cheng Peng, Zhou Xingyou, Xu Yiming, Ji Bing, Gao Qizhou, Sun Qian, Zhang Yuehai, Guo Wengang, Liu Tongsheng, Lu Peigen, Xu Zhiyu, Chen Jianyi, Liu Jingbo:

Introduction

Disc spring is a kind of universal elastic element, which is widely used in machinery, chemical industry, aviation, construction and other industries: GB/T 1972 "Disc Springs" is divided into two parts: --- Part 1: Calculation: The purpose is to provide a set of standard disc spring structure type, grouping and size series based on The calculation method of the disc spring in the scope of application provides a theoretical basis for the verification and design of the disc spring: --- Part 2: Technical conditions: The purpose is to standardize the technical conditions, test methods and acceptance rules of disc springs: Disc Springs Part 1: Calculations

1 Scope

This document gives the calculation criteria and requirements for single-piece disc springs and combined disc springs (hereinafter referred to as "disc springs") with rectangular cross-sections: Including definitions of related concepts, calculation formulas and checking of key positions of fatigue damage: This document applies to single disc springs and combined disc springs: This document does not apply to grooved disc springs, diaphragm disc springs and other structural types of disc springs:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 1222 Spring steel GB/T 1805 Spring Terminology (GB/T 1805-2021, ISO 26909:2009, MOD)

3 Terms and Definitions

The terms and definitions defined in GB/T 1805 apply to this document: 4 Symbols, parameter names and units The symbols, parameter names and units used in this document are shown in Table 1: Table 1 Symbols, parameter names and units Symbolic parameter name unit C1,C2,C3,C4,k1,k2 Coefficients- D Outer diameter mm D0 neutral diameter mm d Inner diameter mm E Elastic modulus of material MPa F Single disc spring load N Fc is the calculated load N of the single disc spring at the flattened position FG combined disc spring (hereinafter referred to as "combined disc spring") load N Ft Detection load (load at Ht position) N F1, F2, F3, corresponding to the load N of disc spring height H1, H2, H3 Ht The height corresponding to the detection load (Ht=H0-0:75h0) mm ......

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