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GB/T 45016-2024 English PDF

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US$359.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 45016-2024: Test methods for mechanical automatic tensioner of accessory belt drive system of engine
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 45016-2024	359	Add to Cart	4 days	Test methods for mechanical automatic tensioner of accessory belt drive system of engine	Valid

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Basic data

Standard ID: GB/T 45016-2024 (GB/T45016-2024)
Description (Translated English): Test methods for mechanical automatic tensioner of accessory belt drive system of engine
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J18
Classification of International Standard: 21.220.10
Word Count Estimation: 18,10
Date of Issue: 2024-11-28
Date of Implementation: 2025-06-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 45016-2024: Test methods for mechanical automatic tensioner of accessory belt drive system of engine

---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.
Test methods for mechanical automatic tensioner of accessory belt drive system of engine Engine accessory belt drive system mechanical Automatic tensioner test method Test methods for mechanical automatic tensioner of accessory belt drive system of engine ICS 21.220.10 CCS J 18 National Standard of the People's Republic of China Released on 2024-11-28 2025-06-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Preface ... Ⅲ Introduction Ⅳ 1 Scope ... 1 2 Normative references ... 1 3 Terms and Definitions ... 1 4 Test Description ... 2 5 Test methods ... 3 5.1 High temperature durability test ... 3 5.2 Thermal shock durability test ... 3 5.3 Corrosion test ... 4 5.4 Contamination test ... 5 5.5 Lifting test 6 5.6 Ozone resistance test 7 5.7 Drop test 8 5.8 Snap Twist Test 8 6 Test Report ... 8 References ... 10

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 is required. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of the National Technical Committee on Pulleys and Belts (SAC/TC 428). This document was drafted by. Zhejiang Fengmao Technology Co., Ltd., Zhejiang Ruideli Auto Parts Co., Ltd., Anhui Hengjun Powder Metallurgy Technology Co., Ltd., Wuxi Belt Adhesive Tape Co., Ltd., China Machinery Productivity Promotion Center Co., Ltd., China First Automobile Co., Ltd. Ltd., Dongfeng Motor Group Co., Ltd., Ningbo Geely Luoyou Engine Parts Co., Ltd., Chongqing Changan Automobile Co., Ltd., Cummins (China) Investment Co., Ltd., Guangxi Yuchai Machinery Co., Ltd., Jilin University, Qingdao Shuangling Technology Equipment Co., Ltd., China Machinery Research Institute of Standards and Technology (Beijing) Co., Ltd. The main drafters of this document are. Xu Lizhi, Dong Yongxiu, Wang Xiangrui, Chen Jinwen, Liu Shicai, Qin Shuan, Zhou Peng, Xia Chunyu, Zhang Jiandong, Sun Baizhong, Liu Jin, Chen Li, Liu Xing, Feng Zengming, Guo Shiling, Li Quanjun.

Introduction

The tensioner is a key component in the engine accessory belt drive system. It mainly plays the role of adjusting the tension of the drive system. The tensioning force of the belt drive system is kept stable, which can not only reduce noise and vibration, but also improve the service life and transmission accuracy of the belt drive system. After several technological changes, they are now equipped with automatic tensioning function, which can automatically adjust the system tension according to the length of the accessory belt. It can be divided into mechanical automatic tensioner and hydraulic automatic tensioner. Since mechanical automatic tensioner is more commonly used, this document gives the mechanical automatic tensioner. Test method for mechanical automatic tensioners. Engine accessory belt drive system mechanical Automatic tensioner test method

1 Scope

This document describes the test instructions, test The test methods mainly include high temperature durability test, thermal shock durability test, corrosion test, pollution test, Rise test, ozone resistance test, drop test and sharp twist test. This document applies to mechanical automatic tensioners for engine applications and does not apply to pulleys or bearings in tensioners, linear tensioners and double tensioners. Towards the tensioner pulley.

2 Normative references

The contents of the following documents constitute the 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. in this document. GB/T 6931.1 Belt drive terminology Part 1.Basic terms

3 Terms and definitions

The terms and definitions defined in GB/T 6931.1 and the following apply to this document. 3.1 Mechanical automatic tensioner A component that provides belt tension through parts such as springs and tensioner arms. 3.2 load angle The angle between the resultant force of the drive belt on the pulley and the tensioning arm when the tensioner is in the nominal working position in the engine accessory belt drive system. 3.3 Parallelism When the force is applied to the tension arm in the load angle direction and the tension arm is rotated to the nominal working position, the bearing mounting surface is relative to the tension wheel mounting surface. The maximum value of the parallel error of the reference surface. Note. The unit of parallelism is mm or (°). 3.4 Height difference offset When the force is applied to the tension arm in the load angle direction and the tension arm is rotated to the nominal working position, the bearing mounting surface is relative to the tension wheel mounting surface. The distance to the reference plane. 3.5 Tensioner break-in Before the test, rotate the tension arm for 15 min at a temperature of (20 ± 5) °C, a peak-to-peak amplitude of 2°, and a frequency of 20 Hz to stabilize the Preparatory steps for tensioner damping. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 45016-2024_English be delivered?

Answer: Upon your order, we will start to translate GB/T 45016-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 45016-2024_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 45016-2024_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.