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GB/T 24503-2024Drive sprocket for chains (round link) for mining (English PDF)

矿用圆环链驱动链轮

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

September 29, 2024

Implementation date

April 1, 2025

Scope

GB/T 24503-2024 is the English-translated version of 矿用圆环链驱动链轮.

GB/T 24503-2024 is the Chinese standard "Drive sprocket for chains (round link) for mining". Its scope clause reads: This document specifies the types and dimensions, requirements, test methods, inspection rules, standards, and specifications of round link chain drive sprockets (hereinafter referred to as "sprockets") for mining.

Labeling, packaging, transportation and storage. This document applies to scraper conveyors, scraper transfer machines, coal planers, tunneling machines, coal mining machines and other equipment that use round link chains or compact chains for traction.

The driving sprocket is also suitable for the driving sprocket in other equipment using round link chain as traction chain. Its clauses include terms and definitions.

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Document preview — GB/T 24503-2024

National Standard of the People's Republic of China

ICS: 73.100.40
Classification: D93

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Types and sizes
5 Requirements
6 Test methods
7 Inspection Rules
8 Marking, packaging, transportation and storage
Appendix A (Informative) Calculation Example
Appendix B (normative) Permissible chord length deviation of adjacent chain nest angle deviation
Appendix C (Normative) Test Record Format

1 Scope

This document specifies the types and dimensions, requirements, test methods, inspection rules, standards, and specifications of round link chain drive sprockets (hereinafter referred to as "sprockets") for mining.

Labeling, packaging, transportation and storage.

This document applies to scraper conveyors, scraper transfer machines, coal planers, tunneling machines, coal mining machines and other equipment that use round link chains or compact chains for traction.

The driving sprocket is also suitable for the driving sprocket in other equipment using round link chain as traction chain.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to

This document.

GB/T 228.1-2021 Tensile testing of metallic materials Part 1.Test methods at room temperature (ISO 6892-1.2019, MOD)

GB/T 229-2020 Charpy pendulum impact test method for metallic materials (ISO 148-1.2016, MOD)

GB/T 230.1-2018 Rockwell hardness test for metallic materials Part 1.Test method

GB/T 985.2 Recommended groove for submerged arc welding (ISO 9692-2.1998, MOD)

GB/T 3323.1 Non-destructive testing of welds - Radiographic testing - Part 1.Film techniques for X-ray and gamma-rays

GB/T 6060.1 Surface roughness comparison specimens Part 1.Casting surface (GB/T 6060.1-1997, eqvISO 2632-3.

1979)

GB/T 6060.2 Surface roughness comparison specimens Grinding, turning, boring, milling, inserting and planing surfaces (GB/T 6060.2-2006,

ISO 2632-1.1985, MOD)

GB/T 6402 Ultrasonic testing method for steel forgings

GB/T 8170 Rules for rounding off values and expression and determination of limit values

GB/T 10111-2008 Generation of random numbers and their application in product quality sampling inspection

GB/T 12718-2009 High-strength round link chains for mining (ISO 610.1990, NEQ)

GB/T 13264 Small batch sampling inspection procedure and sampling table for percentage of non-conforming products

JB/T 10061 General technical requirements for type A pulse reflection ultrasonic flaw detector

MT/T 71 Open-end connecting rings for round link chains for mining (ISO 1082.1990, NEQ)

MT/T 99 Flat link rings for round link chains for mining

MT/T 929 High Strength Compact Chain for Mining

3 Terms and definitions

The following terms and definitions apply to this document.

3.1

An open groove in the sprocket tooth profile that is maintained to accommodate the vertical ring.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 34 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 6892 · ISO 148 · ISO 9692 · ISO 2632 · ISO 610.1990 · ISO 1082.1990

Cited by

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GB 38031-2025|GB/T 24503|GB/T 24503-2009|GB/T24503-2024|GB/T 1.1-2020|GB/T 228.1-2021|GB/T 229-2020|GB/T 230.1-2018

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