GB/T 38337-2019 in English
VALIDGeneral specification for ultrasonic motor and driver
- Issued on:2019-12-10
- Implemented on:2020-07-01
- File Format:PDF
- Delivery:Via email within 5 business days
$466.00
《GB/T 38337-2019超声波电动机及其驱动控制器通用技术条件》由TC2（全国微电机标准化技术委员会）归口，主管部门为中国电器工业协会。
Introduction
Interpretation of core technical specifications
- Self-locking torque: the ability to resist external torque in the power-off state
- Speed fluctuation coefficient: K=(nmax-nmin)/(nmax+nmin)×100%
- Working area division: long time (S3≤50%)/short time (S3≤40%)/non-working area
Comparison of key performance indicators
| Parameter category | Rotational indicators | Linear reference | Test conditions |
|---|---|---|---|
| Torque characteristics | Rated torque=50% maximum working torque | Analog conversion | Rated power supply state |
| Speed range | n0~n2 | Speed linear equivalent | No-load/load state |
| Life index | 50~2500 hours | Same standard applies | S3 working system |
Key points of test method
1. Mechanical properties test
Use the standard test bracket (Appendix D) with magnetic powder brake loading, record the torque-speed curve of 6 characteristic points, which must meet the following requirements:
- Speed fluctuation coefficient ≤ value specified in product technical conditions
- Forward and reverse speed difference <5% rated no-load speed
2. Environmental adaptability verification
| Test items | Standard basis | Key parameters |
|---|---|---|
| Constant damp heat | GB/T 2423.3 | Test after coating protection |
| Salt spray corrosion | GB/T 2423.17 | 16~96 hours optional |
| Electromagnetic compatibility | GB 17799.3/4 | Radiated disturbance + immunity |
Standard implementation recommendations
Design and application guide
- Model naming strictly follows the rules in Appendix A/B, such as CSX76S3 means a 76mm base solid single-shaft motor
- Installation dimension tolerance is controlled according to GB/T 1804-m level, coaxiality ≤0.03mm (120 base)
- Driver input voltage tolerance ±10% (12V/24V DC)
Key points of quality control
- The identification test requires all four prototypes to pass the test
- Group A test adopts GB/T 2828.1 Level II scheme
- Accelerated testing is allowed for life test (acceleration factor must be specified)
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