GB/T 21397-2023 in English
VALIDCotton harvesters
- Issued on:2023-11-27
- Implemented on:2024-06-01
- File Format:PDF
- Delivery:Within 1 day
$334.00
| Standard No: | GB/T 21397-2023 |
| Document status: | VALID |
| Title in English: | Cotton harvesters |
| Title in Chinese: | 棉花收获机 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Within 1 day |
| Issued on: | 2023-11-27 |
| Implemented on: | 2024-06-01 |
| Superseding: |
GB/T 21397-2008 Cotton harvesters
|
| ICS Classification: | 65.060.50-Harvesting equipment |
| Chinese Classification: | B91-Farming machinery and tools |
| Professional Classification: | GB-National Standard |
| Related Keywords: | cotton harvesters
cotton harvesters introduction standard revision background seed cotton intelligent monitoring cotton picking device cotton plants |
| Related Topics: | cotton
early harvest reward cotton noodles Huo Lun cotton strength won cotton swab box Feed cotton GBT21397 GB/T 21397-2008 Spark machine acceptance Cotton stacking Mirror spark machine acceptance Safe use of cotton harvesting machinery |
《GB/T 21397-2023棉花收获机》由TC201（全国农业机械标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
Standard Revision Background and Technology Evolution
GB/T 21397-2023, as the basic national standard in the field of cotton harvesters, has made a comprehensive technical upgrade to the 2008 version. This revision focuses on responding to the three major industry development trends of intelligent harvesting, environmental protection and emission reduction, and fine operation. There are 19 major technical changes, and the newly added technical requirements for baler harvesters account for 40%.
Reconstruction of core terminology system
| Category | 2008 Edition | 2023 Edition | Explanation of changes |
|---|---|---|---|
| Delete terms | 3 items | 0 items | Cancel outdated concepts such as "cracking bolls" |
| Revise terms | 5 items | 5 items | "defoliation rate" definition adds quantitative requirements |
| New terms | 0 items | 12 items | Add new technical terms such as packaging devices and intelligent monitoring |
Comparison of key performance indicators
| Indicator item | Requirements of the 2008 version | Requirements of the 2023 version | Improvement range |
|---|---|---|---|
| Purity of cotton | ≥90% | ≥93% | 3 percentage points |
| Seed cotton impurity rate | ≤12% | ≤11% | 1 percentage point |
| Reliability (box type) | 60h | 80h | 33% improvement |
| Noise limit | 98dB without cab | 95dB without cab | 3dB reduction |
Intelligent technology requirements
The new standard systematically specifies the requirements for intelligent control systems in clause 4.6.5:
- Fault self-diagnosis: At least 20 types of fault codes must be displayed in Chinese
- Operation monitoring: Harvesting area measurement error ≤3%
- Data storage: Local storage cycle is not less than 500h
- Beidou compatibility: The remote communication module must support the Beidou-3 protocol
Typical fault classification system
| Fault level | Judgment standard | Case | Handling time limit |
|---|---|---|---|
| Fatal fault | Complete loss of function | Frame break | Immediate shutdown |
| Serious fault | Major component damage | Baling roller break | ≤4h |
| General fault | Partial function failure | Chain break | ≤2h |
| Minor fault | Inconvenient operation | Abnormal instrument display | ≤0.5h |
Implementation suggestions
Three suggestions are put forward for the implementation of the new standard:
- Equipment transformation: Existing equipment should be equipped with an online monitoring device for seed cotton moisture content to meet the requirements of Article 5.3.3.4
- Process optimization: The defoliant spraying time should be advanced to 21 days before harvest to ensure the defoliation rate ≥80%
- Maintenance system: Establish a mandatory replacement system for spindles every 300 hours (refer to Article 4.3.3)
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