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GB/T 21962-2020: [Including 2025XG1] Corn combine harvester
Status: Valid GB/T 21962: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21962-2020 | English | 929 |
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[Including 2025XG1] Corn combine harvester
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GB/T 21962-2020
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| GB/T 21962-2008 | English | 90 |
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Technical requirements for maize combine harvester
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PDF similar to GB/T 21962-2020
Basic data | Standard ID | GB/T 21962-2020 (GB/T21962-2020) | | Description (Translated English) | Corn combine harvester | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B91 | | Classification of International Standard | 65.060.50 | | Word Count Estimation | 45,421 | | Date of Issue | 2020-11-19 | | Date of Implementation | 2021-06-01 | | Older Standard (superseded by this standard) | GB/T 21961-2008; GB/T 21962-2008 | | Quoted Standard | GB/T 1147.1; GB/T 2828.1; GB/T 3098.1-2010; GB/T 3098.2-2015; GB/T 4269.1; GB/T 4269.2; GB/T 5262; GB/T 5667; GB/T 6979.1; GB/T 6979.2; GB/T 9239.1-2006; GB/T 9480; GB/T 9486; GB 10395.1; GB 10395.7; GB 10396; GB/T 13306; GB/T 14039-2002; GB/T 14248 | | Regulation (derived from) | National Standard Announcement No. 26 of 2020 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | | Summary | This standard specifies the terms and definitions, product types, models and basic parameters, safety requirements, and main performance indicators of corn ear harvesters, corn grain harvesters, corn ear stem harvesters, fresh corn harvesters and ear corn harvesters , Technical requirements, test methods, inspection rules and signs, transportation and storage. This standard applies to suspended, traction and self-propelled corn harvesters (hereinafter referred to as "harvesters"). | GB/T 21962-2020: Corn combine harvester---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.
Corn combine harvester
ICS 65.060.50
B91
National Standards of People's Republic of China
Replace GB/T 21961-2008, GB/T 21962-2008
Corn harvesting machinery
2020-11-19 released
2021-06-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 Product type, model and basic parameters 3
4.1 Product Type 3
4.2 Product model 3
4.3 Basic parameters 3
5 Safety requirements 3
6 Main performance indicators 4
6.1 Job performance 4
6.2 Reliability 4
7 Technical requirements 5
7.1 Overall requirements 5
7.2 Requirements for main components 5
8 Test method 7
8.1 Test preparation 7
8.2 Test instruments and equipment 7
8.3 Test conditions 8
8.4 General requirements 8
8.5 Determination of technical parameters 9
8.6 Performance test determination 9
8.7 Noise measurement 13
8.8 Braking performance test 13
8.9 Reliability test 13
9 Inspection rules 13
9.1 Factory test 13
9.2 Type inspection 13
9.3 Evaluation rules 14
10 Marking, transportation and storage 16
Appendix A (Normative Appendix) Reliability Test Method of Corn Harvester 17
Appendix B (Normative Appendix) Failure modes and classification examples of corn harvesting machinery 20
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 21962-2008 "Technical Conditions of Corn Harvesting Machinery" and GB/T 21961-2008 "Maize Harvesting Machinery"
experiment method".
Compared with GB/T 21962-2008, the main technical changes of this standard are as follows.
---Modified the scope of the standard (see Chapter 1, Chapter 1 of the.2008 edition);
---Modified normative reference documents (see Chapter 2, Chapter 2 of the.2008 edition);
---Added product type, model and basic parameters (see Chapter 4);
---Added the requirement of safe start device (see 5.8);
---Modified the braking performance requirements (see 5.9, 4.8 of the.2008 edition);
---Added relevant requirements for corn ear stem harvester, fresh corn harvester and ear corn harvester (see 6.1);
---Revised the main performance indicators (see Table 1, Table 1 of the.2008 edition);
---Improved the requirements of the whole machine (see 7.1, Chapter 5 of the.2008 edition);
---Modified the diesel engine starting requirements (see 7.2.1.2, 5.4 of the.2008 edition);
---Added diesel engine calibration power and emission limit requirements (see 7.2.1.3, 7.2.1.4);
---Added the technical requirements for the corn header and the lowering speed requirements (see 7.2.2.2);
---Added the requirements for the ear lifter, peeling device, grain recovery device, threshing separation device, and stalk processing system (see 7.2.3~
7.2.7);
---Added the pollution limit requirements of the hydraulic system (see 7.2.8.4);
---Added the requirements for the drive axle and transmission box of the transmission system (see 7.2.9.3);
---Improved the relevant requirements of the electrical system (see 7.2.10.5, 7.2.10.6, 7.2.10.7, 5.8 in the.2008 edition);
---Modified inspection and sampling inspection items (see Table 3 and Table 4, Table 2 and Table 3 in the.2008 edition).
Compared with GB/T 21961-2008, the main technical changes of this standard are as follows.
---Modified the scope of the standard (see Chapter 1, Chapter 1 of the.2008 edition);
---Modified the braking performance test (see 8.8, 6.5 in the.2008 edition);
---Delete the determination of power indicators (6.3 in.2008 edition);
--- Added normative appendices (see Appendix A, Appendix B).
This standard was proposed by China Machinery Industry Federation.
This standard is under the jurisdiction of the National Agricultural Machinery Standardization Technical Committee (SAC/TC201).
Drafting organizations of this standard. Lovol Heavy Industry Co., Ltd., Chinese Academy of Agricultural Mechanization Science, Hebei Yinghu Agricultural Machinery Manufacturing Co., Ltd.
Co., Ltd., Taian Yueying Machinery Technology Co., Ltd., Zhengzhou Zhonglian Harvesting Machinery Co., Ltd., Brave Machinery Co., Ltd., Tai'an, Shandong Province
Municipal Agricultural Machinery Research Institute.
The main drafters of this standard. Zhang Mingyuan, Han Zengde, Zhao Qingliang, He Song, Liu Yanqiu, Wang Zhongmin, Li Xia, Zhu Mengyao, Xie Wendong, Wang Yong,
Wei Fukui.
The previous versions of the standard replaced by this standard are as follows.
---GB/T 21961-2008;
---GB/T 21962-2008.
Corn harvesting machinery
1 Scope
This standard specifies the corn ear harvester, corn kernel harvester, corn ear stem harvester, fresh corn harvester and ear corn harvester
Obtained terms and definitions, product types, models and basic parameters, safety requirements, main performance indicators, technical requirements, test methods, inspection regulations
Rules and signs, transportation and storage.
This standard applies to suspended, traction and self-propelled corn harvesters (hereinafter referred to as "harvesters").
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.
For undated references, the latest version (including all amendments) applies to this document.
GB/T 1147.1 Medium and small power internal combustion engines Part 1.General technical conditions
GB/T 2828.1 Sampling inspection procedure by attributes Part 1.Batch inspection sampling plan retrieved by acceptance quality limit (AQL)
GB/T 3098.1-2010 Mechanical properties of fasteners bolts, screws and studs
GB/T 3098.2-2015 Mechanical properties of fasteners nuts
GB/T 4269.1 Symbols for operator control mechanisms and other display devices of agricultural and forestry tractors and machinery, lawn and garden power machinery-Part 1.General symbols
GB/T 4269.2 Symbols for operators of agricultural and forestry tractors and machinery, lawn and garden power machinery, and other display devices
Part 2.Symbols for agricultural tractors and machinery
GB/T 5262 General Regulations for Testing Conditions of Agricultural Machinery
GB/T 5667 Production test method for agricultural machinery
GB/T 6979.1 Harvesting machinery Combine harvester and functional parts Part 1.Vocabulary
GB/T 6979.2 Harvesting machinery, Combine harvester and functional parts Part 2.Evaluation of performance and characteristics defined in vocabulary
GB/T 9239.1-2006 Mechanical vibration constant state (rigid) rotor balance quality requirements Part 1.Specification and balance tolerance inspection
GB/T 9480 Rules for the compilation of manuals for agricultural and forestry tractors and machinery, lawn and garden power machinery
GB/T 9486 Steady-state exhaust smoke of diesel engine and its measurement method
GB 10395.1 Agricultural and Forestry Machinery Safety Part 1.General Principles
GB 10395.7 Safety technical requirements for agricultural and forestry tractors and machinery Part 7.Combine harvesters, fodder and cotton harvesters
GB 10396 General rules for safety signs and hazard graphics for agricultural and forestry tractors and machinery, lawn and garden power machinery
GB/T 13306 signs
GB/T 14039-2002 Code of pollution grade of solid particles in hydraulic transmission oil
GB/T 14248 Method for measuring braking performance of harvesting machinery
GB/T 15370 (all parts) General technical requirements for agricultural tractors
GB.19997 Noise limit of grain combine harvester
GB 20891 Diesel engine exhaust pollutant emission limits and measurement methods for non-road mobile machinery (China's third and fourth stages)
GB/T 21398 Electromagnetic compatibility test methods and acceptance rules for agricultural and forestry machinery
GB/T 24675.6-2009 Protective tillage machinery, straw crushing and returning machine
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