As humanoid robots enter the industrialization stage, harmonic reducers have become one of the most critical transmission components for humanoid robot joints. PICEA MOTION harmonic drive solutions are designed to meet the unique demands of humanoid robotics, including high integration, bio-inspired design and precise coordination. Driven by our philosophy of achieving the "ultimate balance of performance, weight and space", PICEA MOTION are committed to innovation rooted in precision, reliability and ease of use, which provide a full spectrum of harmonic drive solutions from highly customized development to mature and standardized products.
Humanoid robots need to simultaneously meet the following requirements:
High-precision positioning
High torque output
Lightweight design
Compact installation space
Low backlash
High repeatability
Harmonic drive reducers possess these characteristics:
Specifications | Harmonic Drive Reducer Advantages |
Reduction Ratio | 30:1~160:1 |
Backlash | ≤1 arcmin |
Weight | 30%-50% lighter than RV reducer |
Coaxial Design | Saves joint space |
Repeatability Accuracy | ±10~20 arcsec |
Transmission Efficiency | 75%-90% |
Application of PICEA MOTION harmonic drive in humanoid robots
1. Shoulder Joint
Most Degrees of Freedom: Pitch, Roll, Yaw
Commonly Used: 25~50mm harmonic drive reducer, reduction Ratio: 80~120
Application Features: high torque, high frequency motion, high rigidity
2. Elbow Joint
Characteristics:high-frequency reciprocating motion, medium load
Commonly used: 20~32 harmonic reducers, reduction ratio 80~100
Extremely high lifespan requirements: typically requiring a lifespan of over 30,000 hours.
3. Wrist joint
Features: extremely small space requirement, requires hollow structure
Suitable for: PICEA MOTION hollow harmonic reducers, ultra-thin harmonic reducers
Advantages: cable routing, torque sensor integration, encoder integration
4. Dexterous Hand
Requirements and Features:
Miniature Harmonic Reducer
Ultra-low Backlash
Ultra-lightweight
Dimensions: size 8, size 11, size 14
5. Hip joint
Requirements: Ultra-high torque and high rigidity
Current mainstream solutions: RV reducer, planetary roller screw, harmonic reducer + torque motor
6.Knee Joint
Features: high dynamic load and frequent impacts
Future Trends: high-torque harmonic reducer, harmonic drive + planetary composite structure
