actuator
CN122165380APending Publication Date: 2026-06-09ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
- Filing Date
- 2024-12-06
- Publication Date
- 2026-06-09
AI Technical Summary
Technical Problem
Existing robot joint actuators have increased size due to the addition of a flange between the torque sensor and the reducer, which hinders the miniaturization of robot joints.
Method used
An isolation section is installed between the torque sensor and the reducer. By embedding the isolation section inside the actuator cavity, the size of the actuator is reduced, and potting compound is used to isolate the strain gauge from the grease, thereby reducing weight and volume.
Benefits of technology
This technology enables miniaturization of the actuator, improves the precision and stability of the robot joint module, simplifies the assembly process, and reduces the axial dimension and weight of the actuator.
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Smart Images
Figure CN122165380A_ABST
Abstract
This application provides an actuator including a torque sensor, the torque sensor including a strain gauge and a deformation portion for mounting the strain gauge, the actuator further including a reducer, a first connecting portion, a second connecting portion, and an isolation portion, the isolation portion being located between the reducer and the torque sensor, the isolation portion being connected to the first connecting portion and sealing at the connection, the isolation portion being connected to the second connecting portion and sealing at the connection, the actuator having a first cavity, the cavity wall forming the first cavity including at least the wall of the deformation portion, the isolation portion being located in the first cavity, by embedding the isolation portion inside the first cavity, the volume of the actuator can be reduced.
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