GB/T 10401-2023 in English
VALIDGeneral specification for permanent magnet direct current torque motors
- Issued on:2023-09-07
- Implemented on:2024-04-01
- File Format:PDF
- Delivery:Within 1 day
$388.00
《GB/T 10401-2023永磁式直流力矩电动机通用技术规范》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
Core changes in the standard revision
| Technical indicators | 2008 version regulations | 2023 version changes | Range of change |
|---|---|---|---|
| Installation coaxiality | ≤0.2mm when D≥320mm | ≤0.15mm when D≥320mm | Accuracy improved by 25% |
| Insulation dielectric strength | ＞1000+1.5 times the supply voltage when 220V | ＞1000+2 times the supply voltage when 220V | Higher withstand voltage requirements |
| Torque fluctuation coefficient | ≤15% when D<90mm | ≤10% when D<90mm | More stringent fluctuation control |
Analysis of key performance indicators
Torque-current linearity test
The new standard requires the use of the least squares method to fit the curve, and the calculation formula is:
$$K_{\mathrm{L}}=\frac{\mid T_{i}-T_{i}^{\prime}\mid}{T_{i}^{\prime}}\times100\%$$
The fitting value $T_{i}^{\prime}$ is calculated through the linear regression equation to ensure that the linearity of the motor with a base size of 320mm≤D<430mm is ≤2.5%
Implementation suggestions
- Design phase: The magnetic circuit design needs to be optimized to meet the requirements of the new version of the torque fluctuation coefficient
- Production process: CNC machining is recommended to ensure that the coaxiality of the installation mating surface is within 0.15mm
- Testing equipment: A 0.5-level precision torque testing device and a steady-speed turntable should be equipped
Standard application case
After the implementation of the new standard for a 90LYX-25Z motor:
- Excitation static friction torque is reduced from 0.1TP to 0.06TP
- By optimizing the winding process, the insulation resistance is maintained at 12MΩ under high temperature conditions
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