The three major technologies of the heavy-duty stair climber: 1. The global symmetrical double-crank actuator, this mechanism can realize the movement of up and down, and conforms to the kinematics and dynamics principle, realizes the force and the action posture, and has the advantages of simple structure, high efficiency and low cost. 2. Edge brake technology. The edge brake technology with completely independent intellectual property rights uses the principle of automatic gravity sensing and friction to realize the stair climber automatically recognizes the edge of the stairs, and then automatically stops to ensure normal operation and the accuracy of the downstairs movement. It has the advantages of simple structure, stability, long life, zero energy consumption, and low cost. 3. Advanced motor drive technology. Self-developed motor drive controller can well control the stability of the motor under high load conditions, and realize automatic protection under abnormal conditions such as overcurrent, overvoltage, undervoltage, signal fluctuation, high temperature, and vibration. It has the advantages of stable structure, long life and low cost.
