GB/T 30751-2026Building construction machinery and equipment - Mobile crushers - Safety requirements (English PDF)

Foreword

This document conforms to GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

Drafting is scheduled.

This document supersedes GB/T 30751-2014 "Safety Requirements for Mobile Crusheres in Construction Machinery and Equipment", and is consistent with GB/T 30751-Compared to 2014, aside from structural adjustments and editorial changes, the main technical changes are as follows.

a) The scope has been changed (see Chapter 1, Chapter 1 of the 2014 edition);

b) The general principles related to risk assessment have been deleted (see 4.1 in the 2014 edition).

d) The operator field of view requirement has been removed (see 4.4.1 in the 2014 version).

e) The requirements for operating controls and indicators have been changed (see 4.5, 2014 edition of 4.5).

f) The braking system requirements have been changed (see 4.7, 2014 edition of 4.7).

g) Added design requirements for bypass devices (see 4.10.1);

h) The requirements for warning devices have been changed (see 4.12, 2014 edition of 4.12).

i) Increased sound pressure level requirements (see 4.14.3);

j) The lifting and lashing requirements have been changed (see 4.16, 2014 version 4.16).

k) Added requirements for electrical connections of auxiliary starting devices or power supplies, and electrical sockets for lighting (see 4.18.7, 4.18.8).

l) Requirements for hydraulic hoses, support devices, etc. have been changed (see 4.19.3, 4.22.3, and 4.19.2 and 4.22.2 in the 2014 version).

m) Safety sign requirements have been added (see 6.1).

This document is modified to adopt ISO 21873-2:2019 "Construction machinery and equipment - Mobile crushers - Part 2: Safety requirements".

And verification.

This document has undergone the following structural adjustments compared to ISO 21873-2:2019.

--The content of the three terms and definitions, including "crusher blockage" in Appendix C, has been moved to Chapter 3 (see Chapter 3);

--Regarding the braking system in section 4.7, "Self-propelled, truck-mounted, and semi-trailer-type mobile crushers shall be equipped with service, emergency, and parking brake systems." the "System" section has been adjusted to 4.7.1.1 to avoid suspended segments (see 4.7.1.1).

--Add a heading "4.15.4.1 General Requirements" to avoid hanging paragraphs. 4.15.4.2 and 4.15.4.3 correspond to ISO 21873-2 respectively.

4.15.4.1 and 4.15.4.2 of 2019 (see 4.15.4).

The technical differences between this document and ISO 21873-2:2019, and the reasons therefor, are as follows.

Increase operability.

- GB/T 15706 and GB/T 29009 have replaced ISO 12100, ISO 12100:2010, and ISO 21873-1 respectively (see GB/T 15706 and GB/T 29009).

Chapter 3, 4.1.2);

- ISO 2867 has been replaced by GB/T 17300 (see 4.2, 4.3.6, 4.22.2.1);

- ISO 12508 has been replaced by GB/T 17301 (see 4.3.4, 4.15.6);

- ISO 10968 has been replaced by GB/T 8595 (see 4.5.1.1, 4.5.6, 4.6);

- Replace GB/T 8595-2023, GB/T 21935, GB/T 8593.1, GB/T 8593.2, and GB/T 16855.1 respectively.

The standards adopted are ISO 10968:2004, ISO 6682, ISO 6405-1, ISO 6405-2, and ISO 13849-1 (see 4.5.1.1).

- ISO 13850 has been replaced by GB/T 16754 (see 4.5.2.1);

- ISO 10264 has been replaced by GB/T 22356 (see 4.5.3);

- ISO 15817 has been replaced by GB/T 25686 (see 4.5.6);

- ISO 6011 and IEC 60204-1 have been replaced by GB/T 25617 and GB/T 5226.1 respectively (see 4.5.7.2);

- ISO 3450 has been replaced by GB/T 21152 (see 4.7.1.3);

- ISO 10265 and ISO 17063 have been replaced by GB/T 19929 and GB/T 25609 respectively (see 4.7.1.5);

- ISO 9244 has been replaced by GB/T 20178 (see 4.11.1, 4.11.2.1, 4.12, 4.16.1.2, 4.16.2, 6.1.1).

- ISO 7731 has been replaced by GB/T 1251.1 (see 4.12);

- ISO 3744, ISO 3746, and ISO 9614-1 have been replaced by GB/T 3767, GB/T 3768, and GB/T 16404, respectively.

(See 4.14.2.1);

- ISO 11201 and ISO 11202 have been replaced by GB/T 17248.2 and GB/T 17248.3 respectively (see 4.14.3.1).

- ISO 13857 has been replaced by GB/T 23821 (see 4.15.3);

- ISO 14120 has been replaced by GB/T 8196 (see 4.15.4.1);

- ISO 15818 has been replaced by GB/T 43138 (see 4.16.1.1, 4.16.2).

- ISO 13766-1 and ISO 13766-2 have been replaced by GB/T 22359.1 and GB/T 22359.2 respectively (see 4.17);

- ISO 15998 has been replaced by GB/T 34353 (see 4.18.1.4);

- IEC 60529 has been replaced by GB/T 4208 (see 4.18.2);

- ISO 11862 has been replaced by GB/T 25616 (see 4.18.7);

- ISO 4413 has been replaced by GB/T 3766 (see 4.19.1);

- ISO 21507 has been replaced by GB/T 25608 (see 4.20.3);

- ISO 16528-1 and ISO 16528-2 have been replaced by GB/T 46150.1 and GB/T 46150.2 (see 4.20.5);

- ISO 3795 has been replaced by GB/T 20953 (see 4.21.1);

- ISO 2860 has been replaced by GB/T 17299 (see 4.22.1.2);

- ISO 10533 has been replaced by GB/T 17920 (see 4.22.3.1);

- ISO 12100:2010 has been replaced by GB/T 15706-2012 (see 6.2.1.1);

- ISO 6750 has been replaced by GB/T 25622.1 (see 6.2.1.1).

b) The design speed of the tracked self-propelled mobile crusher has been changed (see 4.7.1.5), and a minimum speed limit has been added;

c) The marking requirements have been changed (see 6.3) to suit my country's national conditions.

The following editorial changes have been made to this document.

--The standard name has been changed to "Safety Requirements for Mobile Crusher in Construction Machinery and Equipment";

--The statement "This document does not apply to machines manufactured before its publication date" has been removed (see Chapter 1);

--ISO 10968 and ISO 6682 have been replaced by GB/T 8595 and GB/T 21935, respectively (see 4.5.1.1).

--ISO 6405-1 [see 4.5.6 b), 4.5.7.3, 4.16.2, 4.18.6.1] has been replaced by GB/T 8593.1 (referenced for informational purposes).

--ISO 6405-2 has been replaced by GB/T 8593.2 (see 4.5.7.3), which is cited in the informational reference.

--ISO 13732-1 has been replaced by GB/T 44624 (see 4.15.2.2), which is cited in the informational reference.

--ISO 12100 and IEC 60204-1 have been replaced by GB/T 15706 and GB/T 5226.1 respectively (see 4.15.5).

--ISO 9247 has been replaced by GB/T 22353 (see 4.18.3.1), which is cited in the informational reference.

--ISO 3164 has been replaced by GB/T 17772 (see 4.19.3.1), which is cited in the informational reference.

--ISO 10261 has been replaced by GB/T 25606 (see 6.3), which is cited in the informational reference.

--ISO 13857 has been replaced by GB/T 23821 (see B.6), which is cited in the informational reference.

--Change the numeric serial numbers in Table A.1 to alphanumeric serial numbers (see Table A.1).

Please note that some content in this document may involve patents. The issuing organization of this document assumes no 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 Standardization of Construction Machinery and Equipment (SAC/TC 328).

1 Scope

This document specifies the types of building materials used for crushing or reprocessing rock, as defined in GB/T 29009, that are transferable between construction sites.

Safety requirements for mobile crushers.

This document applies to the following mobile crushers.

--Self-propelled (mounted on a chassis);

--Truck-style;

--Semi-trailer type.

This document does not apply to.

--Stationary (non-movable) crusher;

--Large-scale mobile crushing machine for mining.

This document addresses significant hazards and dangers associated with the intended use of mobile crushers under conditions of misuse that the manufacturer could reasonably foresee.

The situation and related events.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are listed below.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 1251.1 Ergonomic Hazard Signals in Public Places and Work Areas - Auditory Hazard Signals (GB/T 1251.1-GB/T 3766 General rules and safety requirements for hydraulic transmission systems and their components (GB/T 3766-2015, ISO 4413.

2010, MOD)

GB/T 3767 Engineering method for determining the sound power level and sound energy level of a noise source using acoustic pressure method in an approximate free field above a reflecting surface.

(GB/T 3767-2016, ISO 3744:2010, IDT) GB/T 3768 Acoustic sound pressure method for determining the sound power level and sound energy level of a noise source using a simplified measurement method based on the envelope above the reflecting surface.

Easy Method (GB/T 3768-2017, ISO 3746:2010, IDT) GB/T 4208 Degrees of protection provided by enclosures (IP codes) (GB/T 4208-2017, IEC 60529:2013, IDT) GB/T 5226.1 Electrical Safety of Machinery – Electrical Equipment of Machinery – Part 1: General Technical Conditions (GB/T 5226.1-2019) IEC 60204-1:2016 (IDT) GB/T 8196 General requirements for the design and manufacture of fixed and movable protective devices for machinery (GB/T 8196-2018, ISO 14120:2015, IDT) GB/T 8593.1 Symbols for operator control devices and other display devices for earthmoving machinery - Part 1: General symbols (GB/T 8593.1-2021, ISO 6405-1:2017, IDT) GB/T 8593.2 Symbols for operator control devices and other display devices for earthmoving machinery - Part 2: Machines, working devices and accessories Special symbols for components (GB/T 8593.2-2021, ISO 6405-2:2017, IDT) GB/T 8595 Operating devices for earthmoving machinery operators (GB/T 8595-2023, ISO 10968:2020, IDT)