GB/T 38601-2020 in English
VALIDPower extraction coupling—General technical requirements
- Issued on:2020-03-31
- Implemented on:2020-10-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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| Standard No: | GB/T 38601-2020 |
| Document status: | VALID |
| Title in English: | Power extraction coupling—General technical requirements |
| Title in Chinese: | 功率提取联轴器 通用技术要求 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2020-03-31 |
| Implemented on: | 2020-10-01 |
| ICS Classification: | 21.120.20-Couplings |
| Chinese Classification: | J19-Coupling, brake and speed variator |
| Professional Classification: | GB-National Standard |
| Related Keywords: | standard power extraction coupling
power extraction technical requirements introduction analysis technical specifications key technical points |
| Related Topics: | extract
Coupling Extractor Specifications The extractor uses Extractor role Main equipment for extracting bromine extract... Extraction rate Extractor usage Mandrel technical requirements Mandrel Technical Requirements Peptide extraction equipment and technology extract GBT38601 GB/T 38601-2020 Connector Pump shaft power |
《GB/T 38601-2020功率提取联轴器 通用技术要求》由TC109（全国机器轴与附件标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
Power extraction coupling is a key component of the power transmission system, and its technical specifications directly affect the reliability of equipment operation. This standard mainly includes the following technical dimensions:
| Technical module | Core requirements | Reference standards |
|---|---|---|
| Design specifications | Need to meet 7 major functions such as torque transmission, three-way compensation, and stiffness control | JB/T 7511, ISO 4863 |
| Performance parameters | Includes 24 mandatory technical indicators and 8 types of dimensionless coefficients | Table 1, Table 2 |
| Test verification | 5 types of test types covering idling, static, dynamic and other scenarios | Chapter 6 |
Key Technical Points
1. Torque Calculation Model
The standard establishes a complete torque calculation system:
- Basic formula: T_c ≤ [T] ≤ T_n ≤ [T_max] (Formula 1)
- Steady load: T_c=K_1·K_2·K_3·K_4·T_n (Formula 2)
- Impact load: T_s=(T_s1·K_s1+T_s2·K_s2)·K_m (Formula 3)
2. Dynamic balancing requirements
When the speed exceeds the critical value, dynamic balancing correction must be performed according to GB/T 9239.1. The balance level selection should consider:
Example Analysis: When a marine coupling was working at 1200r/min, the vibration value was measured to be excessive. After calculation, it was required to reach G6.3 balance quality. After correction, the vibration was reduced by 62%.
Implementation suggestions
1. Optimization of selection process
- Clear working parameters (torque, speed, compensation)
- Calculate dynamic load coefficient (K_1~K_4)
- Check critical speed (n_c)
- Determine balance grade (G value)
2. Manufacturing quality control
Key control points:
- Main processing surface roughness ≤Ra1.6 (GB/T 1031)
- Geometric tolerance ≥8 level (GB/T 1184)
- Dynamic balancing residual unbalance is controlled according to G6.3 level
3. Test plan formulation
It is recommended to prioritize:
- 100% rated torque static test
- 110% overload test (lasting 30min)
- Critical speed verification test
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