NB/T 11443-2023General technical specification of controlled start transmission (English PDF)
可控起动传动装置通用技术条件
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Issued by
NEA
Level / Type
Industry · Recommended
Issue date
December 28, 2023
Implementation date
June 28, 2024
Scope
NB/T 11443-2023 is the English-translated version of 可控起动传动装置通用技术条件.
NB/T 11443-2023 is the energy industry standard for controlled start transmissions, drive units combining a multi-stage gear reducer, a wet clutch and microprocessor-based hydraulic control that let scraper conveyors and belt conveyors in underground coal mines start smoothly.
It covers types and designations, technical requirements, test methods, inspection rules, marking, packaging, transport and storage, including the automatic protection and monitoring system that records operating parameters during starting, running and stopping.
Explosion protection follows the GB/T 3836 series, and conveyor reducer requirements refer to MT/T 148 and MT/T 681. Designers, manufacturers and users apply it in design, manufacture and application testing. Issued on 28 December 2023, it has applied since 28 June 2024.
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Document preview — NB/T 11443-2023
National Standard of the People's Republic of China
- ICS
- 73.100.40
- Classification
- D 93
Issued by: National Energy Administration of the People's Republic of China
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
1 Scope
This document specifies the types and nomenclature, requirements, test methods, inspection specifications of controllable starting transmission devices (hereinafter referred to as controllable transmission systems). Rules, marking, packaging, transportation and storage.
This document applies to the design, manufacture and application of controllable transmission systems for scraper conveyors and belt conveyors in underground coal mines. test.
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 to this document.
GB/T 3683 Rubber hoses and hose assemblies for oil-based or water-based fluids, wire braid reinforced hydraulic type specification
GB/T 3836.1 Explosive atmospheres Part 1: General requirements for equipment
GB/T 3836.2 Explosive atmospheres Part 2: Equipment protected by flameproof enclosure "d"
GB/T 3836.3 Explosive atmospheres Part 3: Equipment protected by increased safety "e"
GB/T 3836.4 Explosive atmospheres Part 4: Equipment protected by intrinsic safety type "i"
GB/T 3836.9 Explosive atmospheres Part 9: Equipment protected by encapsulation type "m"
GB/T 10544 Rubber hoses and hose assemblies for oil-based or water-based fluids Specification for wire-wound reinforced rubber-coated hydraulic hoses
GB/T 13306 Labels
AQ 1043-2007 Safety signs and labels for mining products
JB/T 7929 Cleanliness of gear transmission
MT/T 98 Inspection specification for hoses and hose assemblies for hydraulic supports
MT/T 148 Reducer for Scraper Conveyor
MT/T 210 Basic test methods for electrical and electronic products used for communication, detection and control in coal mines
MT/T 681 Technical specifications for reducers for belt conveyors used in coal mines
MT 818.1 Cables for coal mines Part 1: General provisions for mobile flexible cables
MT/T 818.14 Flame-retardant cables for coal mines Unit 3.Flame-retardant communication cables for coal mines
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Controlled start transmission
The transmission system is composed of a multi-stage gear reducer, a wet clutch and hydraulic control based on a microprocessor.
3.2 Auto-protection (automatic monitoring) system
It is used to collect and process relevant state parameters of the controllable transmission system during the start, operation and stop process.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 23 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 3683Rubber hoses and hose assemblies - Wire-braid-reinforced hydraulic types for oil-based or water-based fluids - Specification
- GB/T 3836.1Explosive atmospheres - Part 1: Equipment - General requirements
- GB/T 3836.2Explosive atmospheres - Part 2: Equipment protection by flameproof enclosures 'd'
- GB/T 3836.3Explosive atmospheres - Part 3: Equipment protection by increased safety 'e'
- GB/T 3836.4Explosive atmospheres - Part 4: Equipment protection by intrinsic safety 'i'
- GB/T 3836.9Explosive atmospheres - Part 9: Equipment protection by encapsulation 'm'
MT/T 210 · MT 818.1 · MT/T 818.14
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Related Standards
AQ 1043-2007 — Mining Products Safety Label
GB/T 10544-2022 — Rubber hoses and hose assemblies - Rubber-covered spiral-wire-reinforced hydraulic types for oil-based or water-based fluids - Specification
GB/T 13306-2011 — Plates
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NB/T 11443-2023
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