Ball screw nut pair friction torque measuring system and measuring method
By using the coordinated synchronous control of the main servo motor and the auxiliary servo motor and the symmetrically distributed force transmission rod structure, the measurement accuracy and versatility issues of the ball screw pair friction torque measurement system are solved, achieving efficient and accurate friction torque detection.
CN121954475BActive Publication Date: 2026-07-21SHANDONG UNIV
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG UNIV
- Filing Date
- 2025-11-28
- Publication Date
- 2026-07-21
Smart Images
Figure CN121954475B_ABST
Abstract
The present application belongs to the field of ball screw nut pair friction torque test, and discloses a ball screw nut pair friction torque measuring system and a measuring method, which comprises a to-be-tested screw driving device, a main workbench screw driving device, a friction torque measuring device and a nut fixing device. θ The first force transmission rod and the second force transmission rod of the nut fixing device convert the measurement of the friction torque into only the sensor reading and the angle The movement speed of the main workbench bottom plate is synchronous with the movement speed of the to-be-tested screw driven by the main servo motor, the dynamic interference torque generated due to the speed out of step is isolated, the system error introduced due to the speed out of step is eliminated, and thus the real friction torque of the ball screw pair itself is accurately measured.
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