GB/T 37718-2019 in English
VALIDPrecision planetary cycloidal reducers for robot
- Issued on:2019-06-04
- Implemented on:2020-01-01
- File Format:PDF
- Delivery:Via email within 5 business days
$359.00
| Standard No: | GB/T 37718-2019 |
| Document status: | VALID |
| Title in English: | Precision planetary cycloidal reducers for robot |
| Title in Chinese: | 机器人用精密行星摆线减速器 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2019-06-04 |
| Implemented on: | 2020-01-01 |
| ICS Classification: | 21.120-Shafts and couplings |
| Chinese Classification: | J19-Coupling, brake and speed variator |
| Professional Classification: | GB-National Standard |
| Related Topics: | planet
robot reducer p4 reducer robot version robot+ Instrument precision Reducer standard GBT37718 GB/T 37718-2019 Precision measurement industry Robot reducer pneumatic fuel pump National implementation of reducer Reducer execution Decoration execution Plastic planetary reducer performance test Reduced motor execution Planetary reducer backlash Complete collection of reducer execution standards Robot standards |
《GB/T 37718-2019机器人用精密行星摆线减速器》由TC357（全国减速机标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
Interpretation of the core content of the standard
| Technical indicators | E series requirements | N series requirements | C series requirements |
|---|---|---|---|
| Hysteresis (arcmin) | ≤1.5 | ≤1.5 | ≤1.5 |
| Torsional stiffness (N·m/arcmin) | ≥1680 | ≥901 | ≥1287 |
| Transmission error (arcsec) | ≤70 | ≤60 | ≤70 |
Key Technical Requirements
The standard proposes 11 core performance indicators for precision planetary cycloid reducers:
- Transmission efficiency ≥80% (rated operating conditions)
- Backlash control ≤1.5 arc minutes (high precision type)
- Torsional stiffness up to 1680N·m/arcmin (E series)
- Rated life ≥6000 hours
- Instantaneous acceleration torque can reach 3 times the rated value
Product classification system
The standard establishes a three-dimensional classification system:
- Structural type: E (solid internal), N (solid external), C (hollow type)
- Specification code: Classified by rated output torque (E series 6-450, N series 25-700, C series 10-500)
- Accuracy level: Default level (hysteresis ≤1.5') and calibration level (actual value must be clearly stated)
Typical application case: E320E171 represents a solid internal reducer with a rated torque of 3136N·m and a transmission ratio of 171
Test method innovation
The standard introduces the hysteresis curve test method (Figure 6), and obtains the following through the torque-angle closed-loop test at the same time:
- Hysteresis (0 torque angle difference)
- Lost motion (±3% rated torque angle difference)
- Torsional stiffness (stiffness value in the range of 50%-100% of rated torque)
Implementation suggestions
1. Model selection and matching: Select the specification code according to the robot joint torque requirements, and pay attention to the different installation characteristics of the E/N/C series
2. Accuracy verification: Require suppliers to provide third-party test reports, focusing on checking the measured values of hysteresis and transmission error
3. Maintenance specifications: Use lubricating grease that meets the standards and regularly check the sealing status (Standard 5.13)
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