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GB/T 20790-2024: Head-feed combine harvester - Technical requirements
Status: Valid
GB/T 20790: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 20790-2024 | English | 279 |
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Head-feed combine harvester - Technical requirements
| Valid |
GB/T 20790-2024
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| GB/T 20790-2006 | English | 208 |
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Technical requirements for head-feed combine harvester
| Obsolete |
GB/T 20790-2006
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PDF similar to GB/T 20790-2024
Basic data
| Standard ID | GB/T 20790-2024 (GB/T20790-2024) |
| Description (Translated English) | Head-feed combine harvester - Technical requirements |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | B91 |
| Classification of International Standard | 65.060.50 |
| Word Count Estimation | 14,131 |
| Date of Issue | 2024-04-25 |
| Date of Implementation | 2024-11-01 |
| Older Standard (superseded by this standard) | GB/T 20790-2006 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 20790-2024: Head-feed combine harvester - Technical requirements
---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.
ICS 65:060:50
CCSB91
National Standards of People's Republic of China
Replace GB/T 20790-2006
Technical requirements for semi-feed combine harvesters
Released on 2024-04-25
2024-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
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:
This document replaces GB/T 20790-2006 "Technical Specifications for Semi-feed Combine Harvesters": Compared with GB/T 20790-2006,
In addition to structural adjustments and editorial changes, the main technical changes are as follows:
a) Added “Product Model” (see Chapter 4);
b) The noise requirements for combine harvesters have been changed (see 5:7, 3:6 of the:2006 edition), and the requirements for cab safety glass have been added (see 5:8);
c) The indicators of productivity, total loss rate and impurity rate of operating performance have been changed (see Table 1, Table 1 of the:2006 edition);
d) The indicators of support performance, minimum ground clearance and reliability have been changed (see 6:5, 6:3, 6:2, 4:2, 4:3, 4:4 of the:2006 edition), and
Added whole machine emission requirements (see 6:4);
e) Added the requirements for the automatic unloading time of the unloading screw and the diesel engine emission requirements (see 7:1:5 and 7:2:4:2), and changed the coating thickness requirements:
Requirements, diesel engine starting temperature requirements, hydraulic oil solid contamination limit (see 7:1:8, 7:2:4:3, 7:2:5:4, 5:2:9,:2006 edition
5:3:4:2, 5:3:5:4), added the license plate holder requirements (see 7:2:7);
f) The determination method of average ground pressure has been changed (see 8:3:1, 6:3:1 of the:2006 edition);
g) Added the inspection item classification table (see Table 2);
h) Added sampling and judgment scheme (see Table 3);
i) The labeling, packaging, transportation and storage have been changed (see Chapter 10, Chapter 8 of the:2006 edition):
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 Agricultural Machinery Standardization Technical Committee (SAC/TC201):
This document was drafted by: China Agricultural Mechanization Research Institute Group Co:, Ltd:, Yanmar Agricultural Machinery (China) Co:, Ltd:, Kubota Agricultural Machinery
Industrial Machinery (Suzhou) Co:, Ltd:, Xingguang Agricultural Machinery Co:, Ltd:, Shandong Shuangli Modern Agricultural Equipment Co:, Ltd:, Jiufang Taihe International Heavy Industry
(Qingdao) Co:, Ltd:, Xuchang Vocational and Technical College, and National Agricultural Machinery Quality Inspection and Testing Center:
The main drafters of this document are: Han Zengde, Chen Junbao, Zhang Zhongjie, Chen Jue, Gu Wei, Gong Zengmin, Ren Jianhua, Yao Ruiyang, Hou Chong, and Yang Yating:
This document was first published in:2006 and this is the first revision:
Technical requirements for semi-feed combine harvesters
1 Scope
This document specifies product models, safety requirements, main performance indicators, technical requirements, inspection rules, as well as marking, packaging, transportation and storage:
The corresponding test methods are described:
This document applies to semi-feed combine harvesters that harvest rice or mainly harvest rice and also harvest wheat crops (hereinafter referred to as "combine harvesters"
cutting machine”):
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 1209 (all parts) Agricultural machinery cutters
GB/T 6979:1 Harvesting machinery Combine harvesters and functional components Part 1: Vocabulary
GB/T 8097 Test methods for harvesting machinery - Combine harvesters
GB/T 9480 Rules for writing instructions for agricultural and forestry tractors and machinery, lawn and gardening power machinery
GB 9656 Technical Specification for Safety of Motor Vehicle Glass
GB/T 10395:1 Safety of agricultural and forestry machinery Part 1: General principles
GB 10396 General rules for safety signs and hazard symbols for agricultural and forestry tractors and machinery, lawn and gardening power machinery
GB/T 13306 Labels
GB/T 14039-2002 Code for solid particle contamination level of hydraulic transmission oil
GB/T 14248 Method for determination of braking performance of harvesting machinery
GB 20891 Emission limits and measurement methods for exhaust pollutants from diesel engines for non-road mobile machinery (China Phase III and IV)
GB/T 30965 Earth-moving machinery - Determination of the average ground pressure of tracked machines
HJ1014 Technical requirements for pollutant emission control of non-road diesel mobile machinery
JB/T 5243 Method for determination of cleanliness of transmission box of harvesting machinery
JB/T 6268 Self-propelled harvesting machinery noise determination method
JB/T 6287 Test method for reliability assessment of grain combine harvesters
JB/T 7316 Test methods for hydraulic systems of grain combine harvesters
JB/T 8574 Rules for the compilation of agricultural machinery product models
NY/T 2188 Technical requirements for the installation of license plate holders for combine harvesters
3 Terms and definitions
The terms and definitions defined in GB/T 6979:1 and the following apply to this document:
3:1
Alongcut
The combine harvester is engaged in harvesting operations in which the direction of movement of the harvester is consistent with the direction of crop lodging:
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