GB/T 17771-2010Earth-moving machinery -- Falling-object protective structures -- Laboratory tests and performance requirements (English PDF)

Foreword

This Standard identically adopts ISO 3449:2005 "Earth-moving machinery - Falling-

object protective structures - Laboratory tests and performance requirements" (English

version).

This Standard is an identical translation version of ISO 3449:2005.

For ease of use, the following editorial modifications have been made to this Standard:

- Change the term "this International Standard" to "this Standard";

- Use the decimal point "." instead of "," as the decimal point;

- Delete the Foreword of the international standard;

- For the international standards referenced in ISO 3449:2005, replace the

corresponding international standards with those that have been adopted as

Chinese standards.

This Standard replaces GB/T 17771-1999 " Earth-moving machinery -- Falling-object

protective structures -- Laboratory tests and performance requirements".

Compared with GB/T 17771-1999, the main changes in this Standard are as follows:

- Add several terms and definitions in Chapter 3 of this Standard;

- Modify or add all legends in this Standard;

- Redefine the diameter of the test body for acceptance criteria I and II;

- Add Table 1 "Minimum impact strength of V-notch pendulum";

- Delete Annex B of GB/T 17771-1999. Merge some parts of the Annex B of GB/T

17771-1999 into the Annex A of this Standard.

Annex A of this Standard is normative.

This Standard was proposed by China Machinery Industry Federation.

This Standard shall be under the jurisdiction of National Technical Committee on Earth

Moving Machinery of Standardization Administration of China (SAC/TC 334).

Main drafting organizations of this Standard: Tianjin Engineering Machinery Research

Institute, Tianjin Yishan Engineering Machinery Co., Ltd., Xiamen Xiagong Machinery

Co., Ltd., Hunan Shanhe Intelligent Machinery Co., Ltd., Guangxi Liugong Machinery

Co., Ltd., Xiamen Product Quality Supervision and Inspection Institute [National

Factory Motor Vehicle Quality Supervision and Inspection Center].

Earth-moving machinery - Falling-object protective

structures - Laboratory tests and performance requirements

1 Scope

This Standard specifies laboratory tests for measuring the structural characteristics of,

and gives performance requirements in a representative test for, falling-object

protective structures (FOPS) intended for use on ride-on earth-moving machines as

defined in GB/T 8498.

It is applicable to both FOPS supplied as an integral part of the machine and those

supplied separately for attachment to the machine. It is not intended to apply to FOPS

intended for use on landfill compactors, excavators, rollers, trenchers, pipelayers, for

the additional seat for operation of an attachment (e.g., attachment backhoe), or on

machines with a power rating of less than 15 kW.

NOTE: This Standard can be used to provide guidance to the manufacturers of roll-over or falling-

object protective structures should it be decided to provide such protection for these or other

machines for a particular application.

2 Normative references

The provisions in following documents become the provisions of this Standard through

reference in this Standard. For dated references, the subsequent amendments (excluding

corrigendum) or revisions do not apply to this Standard, however, parties who reach an

agreement based on this Standard are encouraged to study if the latest versions of these

documents are applicable. For undated references, the latest edition of the referenced

document applies.

GB/T 229, Metallic materials - Charpy pendulum impact test method (GB/T 229-

2007, ISO 148-1:2006, Metallic materials - Charpy pendulum impact test - Part 1:

Test method, MOD)

GB/T 3098.1-2000, Mechanical properties of fasteners - Bolts, screws and studs (idt

ISO 898-1:1999)

GB/T 3098.2-2000, Coarse thread fasteners mechanical properties of nuts (idt ISO

898-2:1992)

GB/T 8498, Earth-moving machinery - Basic types - Identification and terms and

definitions (GB/T 8498-2008, ISO 6165:2006, IDT)